src/video/SDL_blit_N.c
author Darren Alton <dalton@stevens.edu>
Wed, 27 Aug 2008 04:23:38 +0000
branchgsoc2008_nds
changeset 2698 e1da92da346c
parent 2267 c785543d1843
child 2853 6258fa7cd300
permissions -rw-r--r--
Clean up.
slouken@0
     1
/*
slouken@0
     2
    SDL - Simple DirectMedia Layer
slouken@1312
     3
    Copyright (C) 1997-2006 Sam Lantinga
slouken@0
     4
slouken@0
     5
    This library is free software; you can redistribute it and/or
slouken@1312
     6
    modify it under the terms of the GNU Lesser General Public
slouken@0
     7
    License as published by the Free Software Foundation; either
slouken@1312
     8
    version 2.1 of the License, or (at your option) any later version.
slouken@0
     9
slouken@0
    10
    This library is distributed in the hope that it will be useful,
slouken@0
    11
    but WITHOUT ANY WARRANTY; without even the implied warranty of
slouken@0
    12
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
slouken@1312
    13
    Lesser General Public License for more details.
slouken@0
    14
slouken@1312
    15
    You should have received a copy of the GNU Lesser General Public
slouken@1312
    16
    License along with this library; if not, write to the Free Software
slouken@1312
    17
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
slouken@0
    18
slouken@0
    19
    Sam Lantinga
slouken@252
    20
    slouken@libsdl.org
slouken@0
    21
*/
slouken@1402
    22
#include "SDL_config.h"
slouken@0
    23
slouken@0
    24
#include "SDL_video.h"
slouken@1358
    25
#include "SDL_endian.h"
slouken@1358
    26
#include "SDL_cpuinfo.h"
slouken@0
    27
#include "SDL_blit.h"
slouken@0
    28
slouken@0
    29
/* Functions to blit from N-bit surfaces to other surfaces */
slouken@0
    30
slouken@1361
    31
#if SDL_ALTIVEC_BLITTERS
slouken@1795
    32
#if __MWERKS__
slouken@1795
    33
#pragma altivec_model on
slouken@1795
    34
#endif
icculus@1175
    35
#ifdef HAVE_ALTIVEC_H
icculus@1162
    36
#include <altivec.h>
icculus@1175
    37
#endif
slouken@1338
    38
#define assert(X)
slouken@1402
    39
#ifdef __MACOSX__
icculus@1047
    40
#include <sys/sysctl.h>
slouken@1895
    41
static size_t
slouken@1895
    42
GetL3CacheSize(void)
icculus@1047
    43
{
icculus@1047
    44
    const char key[] = "hw.l3cachesize";
icculus@1047
    45
    u_int64_t result = 0;
slouken@1895
    46
    size_t typeSize = sizeof(result);
icculus@1047
    47
icculus@1047
    48
slouken@1895
    49
    int err = sysctlbyname(key, &result, &typeSize, NULL, 0);
slouken@1895
    50
    if (0 != err)
slouken@1895
    51
        return 0;
icculus@1047
    52
icculus@1047
    53
    return result;
icculus@1047
    54
}
icculus@1047
    55
#else
slouken@1895
    56
static size_t
slouken@1895
    57
GetL3CacheSize(void)
icculus@1047
    58
{
icculus@1047
    59
    /* XXX: Just guess G4 */
icculus@1047
    60
    return 2097152;
icculus@1047
    61
}
slouken@1402
    62
#endif /* __MACOSX__ */
icculus@1047
    63
slouken@1402
    64
#if (defined(__MACOSX__) && (__GNUC__ < 4))
slouken@1895
    65
#define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
icculus@1162
    66
        (vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p )
slouken@1895
    67
#define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \
icculus@1162
    68
        (vector unsigned short) ( a,b,c,d,e,f,g,h )
icculus@1162
    69
#else
slouken@1895
    70
#define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
icculus@1162
    71
        (vector unsigned char) { a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p }
slouken@1895
    72
#define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \
icculus@1162
    73
        (vector unsigned short) { a,b,c,d,e,f,g,h }
icculus@1162
    74
#endif
icculus@1162
    75
icculus@1047
    76
#define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F)
icculus@1047
    77
#define VSWIZZLE32(a,b,c,d) (vector unsigned char) \
icculus@1047
    78
                               ( 0x00+a, 0x00+b, 0x00+c, 0x00+d, \
icculus@1047
    79
                                 0x04+a, 0x04+b, 0x04+c, 0x04+d, \
icculus@1047
    80
                                 0x08+a, 0x08+b, 0x08+c, 0x08+d, \
icculus@1047
    81
                                 0x0C+a, 0x0C+b, 0x0C+c, 0x0C+d )
icculus@1047
    82
icculus@1047
    83
#define MAKE8888(dstfmt, r, g, b, a)  \
icculus@1047
    84
    ( ((r<<dstfmt->Rshift)&dstfmt->Rmask) | \
icculus@1047
    85
      ((g<<dstfmt->Gshift)&dstfmt->Gmask) | \
icculus@1047
    86
      ((b<<dstfmt->Bshift)&dstfmt->Bmask) | \
icculus@1047
    87
      ((a<<dstfmt->Ashift)&dstfmt->Amask) )
icculus@1047
    88
icculus@1047
    89
/*
icculus@1047
    90
 * Data Stream Touch...Altivec cache prefetching.
icculus@1047
    91
 *
icculus@1047
    92
 *  Don't use this on a G5...however, the speed boost is very significant
icculus@1047
    93
 *   on a G4.
icculus@1047
    94
 */
icculus@1047
    95
#define DST_CHAN_SRC 1
icculus@1047
    96
#define DST_CHAN_DEST 2
icculus@1047
    97
icculus@1047
    98
/* macro to set DST control word value... */
icculus@1047
    99
#define DST_CTRL(size, count, stride) \
icculus@1047
   100
    (((size) << 24) | ((count) << 16) | (stride))
icculus@1047
   101
icculus@1047
   102
#define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \
icculus@1047
   103
    ? vec_lvsl(0, src) \
icculus@1047
   104
    : vec_add(vec_lvsl(8, src), vec_splat_u8(8)))
icculus@1047
   105
icculus@1047
   106
/* Calculate the permute vector used for 32->32 swizzling */
slouken@1895
   107
static vector unsigned char
slouken@1895
   108
calc_swizzle32(const SDL_PixelFormat * srcfmt, const SDL_PixelFormat * dstfmt)
icculus@1047
   109
{
icculus@1047
   110
    /*
slouken@1895
   111
     * We have to assume that the bits that aren't used by other
icculus@1047
   112
     *  colors is alpha, and it's one complete byte, since some formats
icculus@1047
   113
     *  leave alpha with a zero mask, but we should still swizzle the bits.
icculus@1047
   114
     */
icculus@1047
   115
    /* ARGB */
icculus@1047
   116
    const static struct SDL_PixelFormat default_pixel_format = {
icculus@1047
   117
        NULL, 0, 0,
icculus@1047
   118
        0, 0, 0, 0,
icculus@1047
   119
        16, 8, 0, 24,
icculus@1047
   120
        0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000,
slouken@1895
   121
        0, 0
slouken@1895
   122
    };
icculus@1047
   123
    if (!srcfmt) {
icculus@1047
   124
        srcfmt = &default_pixel_format;
icculus@1047
   125
    }
icculus@1047
   126
    if (!dstfmt) {
icculus@1047
   127
        dstfmt = &default_pixel_format;
icculus@1047
   128
    }
slouken@1895
   129
    const vector unsigned char plus = VECUINT8_LITERAL(0x00, 0x00, 0x00, 0x00,
slouken@1895
   130
                                                       0x04, 0x04, 0x04, 0x04,
slouken@1895
   131
                                                       0x08, 0x08, 0x08, 0x08,
slouken@1895
   132
                                                       0x0C, 0x0C, 0x0C,
slouken@1895
   133
                                                       0x0C);
icculus@1047
   134
    vector unsigned char vswiz;
icculus@1047
   135
    vector unsigned int srcvec;
icculus@1047
   136
#define RESHIFT(X) (3 - ((X) >> 3))
icculus@1047
   137
    Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift);
icculus@1047
   138
    Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
icculus@1047
   139
    Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
icculus@1047
   140
    Uint32 amask;
icculus@1047
   141
    /* Use zero for alpha if either surface doesn't have alpha */
icculus@1047
   142
    if (dstfmt->Amask) {
slouken@1895
   143
        amask =
dalton@2698
   144
            ((srcfmt->Amask) ? RESHIFT(srcfmt->
dalton@2698
   145
                                       Ashift) : 0x10) << (dstfmt->Ashift);
slouken@1895
   146
    } else {
slouken@1895
   147
        amask =
slouken@1895
   148
            0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^
slouken@1895
   149
                          0xFFFFFFFF);
slouken@1895
   150
    }
slouken@1895
   151
#undef RESHIFT
slouken@1895
   152
    ((unsigned int *) (char *) &srcvec)[0] = (rmask | gmask | bmask | amask);
slouken@1895
   153
    vswiz = vec_add(plus, (vector unsigned char) vec_splat(srcvec, 0));
slouken@1895
   154
    return (vswiz);
icculus@1047
   155
}
icculus@1047
   156
slouken@1895
   157
static void Blit_RGB888_RGB565(SDL_BlitInfo * info);
slouken@1895
   158
static void
slouken@1895
   159
Blit_RGB888_RGB565Altivec(SDL_BlitInfo * info)
slouken@1895
   160
{
slouken@2262
   161
    int height = info->dst_h;
slouken@2262
   162
    Uint8 *src = (Uint8 *) info->src;
slouken@2267
   163
    int srcskip = info->src_skip;
slouken@2262
   164
    Uint8 *dst = (Uint8 *) info->dst;
slouken@2267
   165
    int dstskip = info->dst_skip;
icculus@1047
   166
    SDL_PixelFormat *srcfmt = info->src;
icculus@1047
   167
    vector unsigned char valpha = vec_splat_u8(0);
icculus@1047
   168
    vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL);
slouken@1895
   169
    vector unsigned char vgmerge = VECUINT8_LITERAL(0x00, 0x02, 0x00, 0x06,
slouken@1895
   170
                                                    0x00, 0x0a, 0x00, 0x0e,
slouken@1895
   171
                                                    0x00, 0x12, 0x00, 0x16,
slouken@1895
   172
                                                    0x00, 0x1a, 0x00, 0x1e);
icculus@1047
   173
    vector unsigned short v1 = vec_splat_u16(1);
icculus@1047
   174
    vector unsigned short v3 = vec_splat_u16(3);
slouken@1895
   175
    vector unsigned short v3f =
slouken@1895
   176
        VECUINT16_LITERAL(0x003f, 0x003f, 0x003f, 0x003f,
slouken@1895
   177
                          0x003f, 0x003f, 0x003f, 0x003f);
slouken@1895
   178
    vector unsigned short vfc =
slouken@1895
   179
        VECUINT16_LITERAL(0x00fc, 0x00fc, 0x00fc, 0x00fc,
slouken@1895
   180
                          0x00fc, 0x00fc, 0x00fc, 0x00fc);
slouken@1895
   181
    vector unsigned short vf800 = (vector unsigned short) vec_splat_u8(-7);
icculus@1047
   182
    vf800 = vec_sl(vf800, vec_splat_u16(8));
icculus@1047
   183
icculus@1047
   184
    while (height--) {
icculus@1047
   185
        vector unsigned char valigner;
icculus@1047
   186
        vector unsigned char voverflow;
icculus@1047
   187
        vector unsigned char vsrc;
icculus@1047
   188
slouken@2262
   189
        int width = info->dst_w;
icculus@1047
   190
        int extrawidth;
icculus@1047
   191
icculus@1047
   192
        /* do scalar until we can align... */
icculus@1047
   193
#define ONE_PIXEL_BLEND(condition, widthvar) \
icculus@1047
   194
        while (condition) { \
icculus@1162
   195
            Uint32 Pixel; \
icculus@1047
   196
            unsigned sR, sG, sB, sA; \
icculus@1162
   197
            DISEMBLE_RGBA((Uint8 *)src, 4, srcfmt, Pixel, \
icculus@1047
   198
                          sR, sG, sB, sA); \
icculus@1047
   199
            *(Uint16 *)(dst) = (((sR << 8) & 0x0000F800) | \
icculus@1047
   200
                                ((sG << 3) & 0x000007E0) | \
icculus@1047
   201
                                ((sB >> 3) & 0x0000001F)); \
icculus@1047
   202
            dst += 2; \
icculus@1047
   203
            src += 4; \
icculus@1047
   204
            widthvar--; \
icculus@1047
   205
        }
icculus@1047
   206
icculus@1047
   207
        ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width);
icculus@1047
   208
icculus@1047
   209
        /* After all that work, here's the vector part! */
slouken@1895
   210
        extrawidth = (width % 8);       /* trailing unaligned stores */
icculus@1047
   211
        width -= extrawidth;
icculus@1047
   212
        vsrc = vec_ld(0, src);
icculus@1047
   213
        valigner = VEC_ALIGNER(src);
icculus@1047
   214
icculus@1047
   215
        while (width) {
icculus@1047
   216
            vector unsigned short vpixel, vrpixel, vgpixel, vbpixel;
icculus@1047
   217
            vector unsigned int vsrc1, vsrc2;
icculus@1047
   218
            vector unsigned char vdst;
icculus@1047
   219
icculus@1047
   220
            voverflow = vec_ld(15, src);
icculus@1047
   221
            vsrc = vec_perm(vsrc, voverflow, valigner);
slouken@1895
   222
            vsrc1 = (vector unsigned int) vec_perm(vsrc, valpha, vpermute);
icculus@1047
   223
            src += 16;
icculus@1047
   224
            vsrc = voverflow;
icculus@1047
   225
            voverflow = vec_ld(15, src);
icculus@1047
   226
            vsrc = vec_perm(vsrc, voverflow, valigner);
slouken@1895
   227
            vsrc2 = (vector unsigned int) vec_perm(vsrc, valpha, vpermute);
icculus@1047
   228
            /* 1555 */
slouken@1895
   229
            vpixel = (vector unsigned short) vec_packpx(vsrc1, vsrc2);
slouken@1895
   230
            vgpixel = (vector unsigned short) vec_perm(vsrc1, vsrc2, vgmerge);
icculus@1047
   231
            vgpixel = vec_and(vgpixel, vfc);
icculus@1047
   232
            vgpixel = vec_sl(vgpixel, v3);
icculus@1047
   233
            vrpixel = vec_sl(vpixel, v1);
icculus@1047
   234
            vrpixel = vec_and(vrpixel, vf800);
icculus@1047
   235
            vbpixel = vec_and(vpixel, v3f);
slouken@1895
   236
            vdst =
slouken@1895
   237
                vec_or((vector unsigned char) vrpixel,
slouken@1895
   238
                       (vector unsigned char) vgpixel);
icculus@1047
   239
            /* 565 */
slouken@1895
   240
            vdst = vec_or(vdst, (vector unsigned char) vbpixel);
icculus@1047
   241
            vec_st(vdst, 0, dst);
icculus@1047
   242
icculus@1047
   243
            width -= 8;
icculus@1047
   244
            src += 16;
icculus@1047
   245
            dst += 16;
icculus@1047
   246
            vsrc = voverflow;
icculus@1047
   247
        }
icculus@1047
   248
icculus@1047
   249
        assert(width == 0);
icculus@1047
   250
icculus@1047
   251
        /* do scalar until we can align... */
icculus@1047
   252
        ONE_PIXEL_BLEND((extrawidth), extrawidth);
icculus@1047
   253
#undef ONE_PIXEL_BLEND
icculus@1047
   254
slouken@1895
   255
        src += srcskip;         /* move to next row, accounting for pitch. */
icculus@1047
   256
        dst += dstskip;
icculus@1047
   257
    }
icculus@1047
   258
icculus@1047
   259
icculus@1047
   260
}
icculus@1047
   261
slouken@1895
   262
static void
slouken@1895
   263
Blit_RGB565_32Altivec(SDL_BlitInfo * info)
slouken@1895
   264
{
slouken@2262
   265
    int height = info->dst_h;
slouken@2262
   266
    Uint8 *src = (Uint8 *) info->src;
slouken@2267
   267
    int srcskip = info->src_skip;
slouken@2262
   268
    Uint8 *dst = (Uint8 *) info->dst;
slouken@2267
   269
    int dstskip = info->dst_skip;
icculus@1047
   270
    SDL_PixelFormat *srcfmt = info->src;
icculus@1047
   271
    SDL_PixelFormat *dstfmt = info->dst;
icculus@1047
   272
    unsigned alpha;
icculus@1047
   273
    vector unsigned char valpha;
icculus@1047
   274
    vector unsigned char vpermute;
icculus@1047
   275
    vector unsigned short vf800;
icculus@1047
   276
    vector unsigned int v8 = vec_splat_u32(8);
icculus@1047
   277
    vector unsigned int v16 = vec_add(v8, v8);
icculus@1047
   278
    vector unsigned short v2 = vec_splat_u16(2);
icculus@1047
   279
    vector unsigned short v3 = vec_splat_u16(3);
icculus@1047
   280
    /* 
slouken@1895
   281
       0x10 - 0x1f is the alpha
slouken@1895
   282
       0x00 - 0x0e evens are the red
slouken@1895
   283
       0x01 - 0x0f odds are zero
slouken@1895
   284
     */
slouken@1895
   285
    vector unsigned char vredalpha1 = VECUINT8_LITERAL(0x10, 0x00, 0x01, 0x01,
slouken@1895
   286
                                                       0x10, 0x02, 0x01, 0x01,
slouken@1895
   287
                                                       0x10, 0x04, 0x01, 0x01,
slouken@1895
   288
                                                       0x10, 0x06, 0x01,
slouken@1895
   289
                                                       0x01);
slouken@1895
   290
    vector unsigned char vredalpha2 =
slouken@1895
   291
        (vector unsigned
slouken@1895
   292
         char) (vec_add((vector unsigned int) vredalpha1, vec_sl(v8, v16))
slouken@1895
   293
        );
icculus@1047
   294
    /*
slouken@1895
   295
       0x00 - 0x0f is ARxx ARxx ARxx ARxx
slouken@1895
   296
       0x11 - 0x0f odds are blue
slouken@1895
   297
     */
slouken@1895
   298
    vector unsigned char vblue1 = VECUINT8_LITERAL(0x00, 0x01, 0x02, 0x11,
slouken@1895
   299
                                                   0x04, 0x05, 0x06, 0x13,
slouken@1895
   300
                                                   0x08, 0x09, 0x0a, 0x15,
slouken@1895
   301
                                                   0x0c, 0x0d, 0x0e, 0x17);
slouken@1895
   302
    vector unsigned char vblue2 =
slouken@1895
   303
        (vector unsigned char) (vec_add((vector unsigned int) vblue1, v8)
slouken@1895
   304
        );
icculus@1047
   305
    /*
slouken@1895
   306
       0x00 - 0x0f is ARxB ARxB ARxB ARxB
slouken@1895
   307
       0x10 - 0x0e evens are green
slouken@1895
   308
     */
slouken@1895
   309
    vector unsigned char vgreen1 = VECUINT8_LITERAL(0x00, 0x01, 0x10, 0x03,
slouken@1895
   310
                                                    0x04, 0x05, 0x12, 0x07,
slouken@1895
   311
                                                    0x08, 0x09, 0x14, 0x0b,
slouken@1895
   312
                                                    0x0c, 0x0d, 0x16, 0x0f);
slouken@1895
   313
    vector unsigned char vgreen2 =
slouken@1895
   314
        (vector unsigned
slouken@1895
   315
         char) (vec_add((vector unsigned int) vgreen1, vec_sl(v8, v8))
slouken@1895
   316
        );
slouken@1895
   317
icculus@1047
   318
icculus@1047
   319
    assert(srcfmt->BytesPerPixel == 2);
icculus@1047
   320
    assert(dstfmt->BytesPerPixel == 4);
icculus@1047
   321
slouken@1895
   322
    vf800 = (vector unsigned short) vec_splat_u8(-7);
icculus@1047
   323
    vf800 = vec_sl(vf800, vec_splat_u16(8));
icculus@1047
   324
slouken@2267
   325
    if (dstfmt->Amask && info->a) {
slouken@2267
   326
        ((unsigned char *) &valpha)[0] = alpha = info->a;
icculus@1047
   327
        valpha = vec_splat(valpha, 0);
icculus@1047
   328
    } else {
icculus@1047
   329
        alpha = 0;
icculus@1047
   330
        valpha = vec_splat_u8(0);
icculus@1047
   331
    }
icculus@1047
   332
icculus@1047
   333
    vpermute = calc_swizzle32(NULL, dstfmt);
icculus@1047
   334
    while (height--) {
icculus@1047
   335
        vector unsigned char valigner;
icculus@1047
   336
        vector unsigned char voverflow;
icculus@1047
   337
        vector unsigned char vsrc;
icculus@1047
   338
slouken@2262
   339
        int width = info->dst_w;
icculus@1047
   340
        int extrawidth;
icculus@1047
   341
icculus@1047
   342
        /* do scalar until we can align... */
icculus@1047
   343
#define ONE_PIXEL_BLEND(condition, widthvar) \
icculus@1047
   344
        while (condition) { \
icculus@1047
   345
            unsigned sR, sG, sB; \
icculus@1162
   346
            unsigned short Pixel = *((unsigned short *)src); \
icculus@1162
   347
            sR = (Pixel >> 8) & 0xf8; \
icculus@1162
   348
            sG = (Pixel >> 3) & 0xfc; \
icculus@1162
   349
            sB = (Pixel << 3) & 0xf8; \
icculus@1047
   350
            ASSEMBLE_RGBA(dst, 4, dstfmt, sR, sG, sB, alpha); \
icculus@1047
   351
            src += 2; \
icculus@1047
   352
            dst += 4; \
icculus@1047
   353
            widthvar--; \
icculus@1047
   354
        }
icculus@1047
   355
        ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width);
icculus@1047
   356
icculus@1047
   357
        /* After all that work, here's the vector part! */
slouken@1895
   358
        extrawidth = (width % 8);       /* trailing unaligned stores */
icculus@1047
   359
        width -= extrawidth;
icculus@1047
   360
        vsrc = vec_ld(0, src);
icculus@1047
   361
        valigner = VEC_ALIGNER(src);
icculus@1047
   362
icculus@1047
   363
        while (width) {
icculus@1047
   364
            vector unsigned short vR, vG, vB;
icculus@1047
   365
            vector unsigned char vdst1, vdst2;
icculus@1047
   366
icculus@1047
   367
            voverflow = vec_ld(15, src);
icculus@1047
   368
            vsrc = vec_perm(vsrc, voverflow, valigner);
icculus@1047
   369
slouken@1895
   370
            vR = vec_and((vector unsigned short) vsrc, vf800);
slouken@1895
   371
            vB = vec_sl((vector unsigned short) vsrc, v3);
icculus@1047
   372
            vG = vec_sl(vB, v2);
icculus@1047
   373
slouken@1895
   374
            vdst1 =
slouken@1895
   375
                (vector unsigned char) vec_perm((vector unsigned char) vR,
slouken@1895
   376
                                                valpha, vredalpha1);
slouken@1895
   377
            vdst1 = vec_perm(vdst1, (vector unsigned char) vB, vblue1);
slouken@1895
   378
            vdst1 = vec_perm(vdst1, (vector unsigned char) vG, vgreen1);
icculus@1047
   379
            vdst1 = vec_perm(vdst1, valpha, vpermute);
icculus@1047
   380
            vec_st(vdst1, 0, dst);
icculus@1047
   381
slouken@1895
   382
            vdst2 =
slouken@1895
   383
                (vector unsigned char) vec_perm((vector unsigned char) vR,
slouken@1895
   384
                                                valpha, vredalpha2);
slouken@1895
   385
            vdst2 = vec_perm(vdst2, (vector unsigned char) vB, vblue2);
slouken@1895
   386
            vdst2 = vec_perm(vdst2, (vector unsigned char) vG, vgreen2);
icculus@1047
   387
            vdst2 = vec_perm(vdst2, valpha, vpermute);
icculus@1047
   388
            vec_st(vdst2, 16, dst);
slouken@1895
   389
icculus@1047
   390
            width -= 8;
icculus@1047
   391
            dst += 32;
icculus@1047
   392
            src += 16;
icculus@1047
   393
            vsrc = voverflow;
icculus@1047
   394
        }
icculus@1047
   395
icculus@1047
   396
        assert(width == 0);
icculus@1047
   397
icculus@1047
   398
icculus@1047
   399
        /* do scalar until we can align... */
icculus@1047
   400
        ONE_PIXEL_BLEND((extrawidth), extrawidth);
icculus@1047
   401
#undef ONE_PIXEL_BLEND
icculus@1047
   402
slouken@1895
   403
        src += srcskip;         /* move to next row, accounting for pitch. */
icculus@1047
   404
        dst += dstskip;
icculus@1047
   405
    }
icculus@1047
   406
icculus@1047
   407
}
icculus@1047
   408
icculus@1139
   409
slouken@1895
   410
static void
slouken@1895
   411
Blit_RGB555_32Altivec(SDL_BlitInfo * info)
slouken@1895
   412
{
slouken@2262
   413
    int height = info->dst_h;
slouken@2262
   414
    Uint8 *src = (Uint8 *) info->src;
slouken@2267
   415
    int srcskip = info->src_skip;
slouken@2262
   416
    Uint8 *dst = (Uint8 *) info->dst;
slouken@2267
   417
    int dstskip = info->dst_skip;
icculus@1139
   418
    SDL_PixelFormat *srcfmt = info->src;
icculus@1139
   419
    SDL_PixelFormat *dstfmt = info->dst;
icculus@1139
   420
    unsigned alpha;
icculus@1139
   421
    vector unsigned char valpha;
icculus@1139
   422
    vector unsigned char vpermute;
icculus@1139
   423
    vector unsigned short vf800;
icculus@1139
   424
    vector unsigned int v8 = vec_splat_u32(8);
icculus@1139
   425
    vector unsigned int v16 = vec_add(v8, v8);
icculus@1139
   426
    vector unsigned short v1 = vec_splat_u16(1);
icculus@1139
   427
    vector unsigned short v3 = vec_splat_u16(3);
icculus@1139
   428
    /* 
slouken@1895
   429
       0x10 - 0x1f is the alpha
slouken@1895
   430
       0x00 - 0x0e evens are the red
slouken@1895
   431
       0x01 - 0x0f odds are zero
slouken@1895
   432
     */
slouken@1895
   433
    vector unsigned char vredalpha1 = VECUINT8_LITERAL(0x10, 0x00, 0x01, 0x01,
slouken@1895
   434
                                                       0x10, 0x02, 0x01, 0x01,
slouken@1895
   435
                                                       0x10, 0x04, 0x01, 0x01,
slouken@1895
   436
                                                       0x10, 0x06, 0x01,
slouken@1895
   437
                                                       0x01);
slouken@1895
   438
    vector unsigned char vredalpha2 =
slouken@1895
   439
        (vector unsigned
slouken@1895
   440
         char) (vec_add((vector unsigned int) vredalpha1, vec_sl(v8, v16))
slouken@1895
   441
        );
icculus@1139
   442
    /*
slouken@1895
   443
       0x00 - 0x0f is ARxx ARxx ARxx ARxx
slouken@1895
   444
       0x11 - 0x0f odds are blue
slouken@1895
   445
     */
slouken@1895
   446
    vector unsigned char vblue1 = VECUINT8_LITERAL(0x00, 0x01, 0x02, 0x11,
slouken@1895
   447
                                                   0x04, 0x05, 0x06, 0x13,
slouken@1895
   448
                                                   0x08, 0x09, 0x0a, 0x15,
slouken@1895
   449
                                                   0x0c, 0x0d, 0x0e, 0x17);
slouken@1895
   450
    vector unsigned char vblue2 =
slouken@1895
   451
        (vector unsigned char) (vec_add((vector unsigned int) vblue1, v8)
slouken@1895
   452
        );
icculus@1139
   453
    /*
slouken@1895
   454
       0x00 - 0x0f is ARxB ARxB ARxB ARxB
slouken@1895
   455
       0x10 - 0x0e evens are green
slouken@1895
   456
     */
slouken@1895
   457
    vector unsigned char vgreen1 = VECUINT8_LITERAL(0x00, 0x01, 0x10, 0x03,
slouken@1895
   458
                                                    0x04, 0x05, 0x12, 0x07,
slouken@1895
   459
                                                    0x08, 0x09, 0x14, 0x0b,
slouken@1895
   460
                                                    0x0c, 0x0d, 0x16, 0x0f);
slouken@1895
   461
    vector unsigned char vgreen2 =
slouken@1895
   462
        (vector unsigned
slouken@1895
   463
         char) (vec_add((vector unsigned int) vgreen1, vec_sl(v8, v8))
slouken@1895
   464
        );
slouken@1895
   465
icculus@1139
   466
icculus@1139
   467
    assert(srcfmt->BytesPerPixel == 2);
icculus@1139
   468
    assert(dstfmt->BytesPerPixel == 4);
icculus@1139
   469
slouken@1895
   470
    vf800 = (vector unsigned short) vec_splat_u8(-7);
icculus@1139
   471
    vf800 = vec_sl(vf800, vec_splat_u16(8));
icculus@1139
   472
slouken@2267
   473
    if (dstfmt->Amask && info->a) {
slouken@2267
   474
        ((unsigned char *) &valpha)[0] = alpha = info->a;
icculus@1139
   475
        valpha = vec_splat(valpha, 0);
icculus@1139
   476
    } else {
icculus@1139
   477
        alpha = 0;
icculus@1139
   478
        valpha = vec_splat_u8(0);
icculus@1139
   479
    }
icculus@1139
   480
icculus@1139
   481
    vpermute = calc_swizzle32(NULL, dstfmt);
icculus@1139
   482
    while (height--) {
icculus@1139
   483
        vector unsigned char valigner;
icculus@1139
   484
        vector unsigned char voverflow;
icculus@1139
   485
        vector unsigned char vsrc;
icculus@1139
   486
slouken@2262
   487
        int width = info->dst_w;
icculus@1139
   488
        int extrawidth;
icculus@1139
   489
icculus@1139
   490
        /* do scalar until we can align... */
icculus@1139
   491
#define ONE_PIXEL_BLEND(condition, widthvar) \
icculus@1139
   492
        while (condition) { \
icculus@1139
   493
            unsigned sR, sG, sB; \
icculus@1162
   494
            unsigned short Pixel = *((unsigned short *)src); \
icculus@1162
   495
            sR = (Pixel >> 7) & 0xf8; \
icculus@1162
   496
            sG = (Pixel >> 2) & 0xf8; \
icculus@1162
   497
            sB = (Pixel << 3) & 0xf8; \
icculus@1139
   498
            ASSEMBLE_RGBA(dst, 4, dstfmt, sR, sG, sB, alpha); \
icculus@1139
   499
            src += 2; \
icculus@1139
   500
            dst += 4; \
icculus@1139
   501
            widthvar--; \
icculus@1139
   502
        }
icculus@1139
   503
        ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width);
icculus@1139
   504
icculus@1139
   505
        /* After all that work, here's the vector part! */
slouken@1895
   506
        extrawidth = (width % 8);       /* trailing unaligned stores */
icculus@1139
   507
        width -= extrawidth;
icculus@1139
   508
        vsrc = vec_ld(0, src);
icculus@1139
   509
        valigner = VEC_ALIGNER(src);
icculus@1139
   510
icculus@1139
   511
        while (width) {
icculus@1139
   512
            vector unsigned short vR, vG, vB;
icculus@1139
   513
            vector unsigned char vdst1, vdst2;
icculus@1139
   514
icculus@1139
   515
            voverflow = vec_ld(15, src);
icculus@1139
   516
            vsrc = vec_perm(vsrc, voverflow, valigner);
icculus@1139
   517
slouken@1895
   518
            vR = vec_and(vec_sl((vector unsigned short) vsrc, v1), vf800);
slouken@1895
   519
            vB = vec_sl((vector unsigned short) vsrc, v3);
icculus@1139
   520
            vG = vec_sl(vB, v3);
icculus@1139
   521
slouken@1895
   522
            vdst1 =
slouken@1895
   523
                (vector unsigned char) vec_perm((vector unsigned char) vR,
slouken@1895
   524
                                                valpha, vredalpha1);
slouken@1895
   525
            vdst1 = vec_perm(vdst1, (vector unsigned char) vB, vblue1);
slouken@1895
   526
            vdst1 = vec_perm(vdst1, (vector unsigned char) vG, vgreen1);
icculus@1139
   527
            vdst1 = vec_perm(vdst1, valpha, vpermute);
icculus@1139
   528
            vec_st(vdst1, 0, dst);
icculus@1139
   529
slouken@1895
   530
            vdst2 =
slouken@1895
   531
                (vector unsigned char) vec_perm((vector unsigned char) vR,
slouken@1895
   532
                                                valpha, vredalpha2);
slouken@1895
   533
            vdst2 = vec_perm(vdst2, (vector unsigned char) vB, vblue2);
slouken@1895
   534
            vdst2 = vec_perm(vdst2, (vector unsigned char) vG, vgreen2);
icculus@1139
   535
            vdst2 = vec_perm(vdst2, valpha, vpermute);
icculus@1139
   536
            vec_st(vdst2, 16, dst);
slouken@1895
   537
icculus@1139
   538
            width -= 8;
icculus@1139
   539
            dst += 32;
icculus@1139
   540
            src += 16;
icculus@1139
   541
            vsrc = voverflow;
icculus@1139
   542
        }
icculus@1139
   543
icculus@1139
   544
        assert(width == 0);
icculus@1139
   545
icculus@1139
   546
icculus@1139
   547
        /* do scalar until we can align... */
icculus@1139
   548
        ONE_PIXEL_BLEND((extrawidth), extrawidth);
icculus@1139
   549
#undef ONE_PIXEL_BLEND
icculus@1139
   550
slouken@1895
   551
        src += srcskip;         /* move to next row, accounting for pitch. */
icculus@1139
   552
        dst += dstskip;
icculus@1139
   553
    }
icculus@1139
   554
icculus@1139
   555
}
icculus@1139
   556
slouken@1895
   557
static void BlitNtoNKey(SDL_BlitInfo * info);
slouken@1895
   558
static void BlitNtoNKeyCopyAlpha(SDL_BlitInfo * info);
slouken@1895
   559
static void
slouken@1895
   560
Blit32to32KeyAltivec(SDL_BlitInfo * info)
icculus@1047
   561
{
slouken@2262
   562
    int height = info->dst_h;
slouken@2262
   563
    Uint32 *srcp = (Uint32 *) info->src;
slouken@2267
   564
    int srcskip = info->src_skip;
slouken@2262
   565
    Uint32 *dstp = (Uint32 *) info->dst;
slouken@2267
   566
    int dstskip = info->dst_skip;
icculus@1047
   567
    SDL_PixelFormat *srcfmt = info->src;
icculus@1047
   568
    int srcbpp = srcfmt->BytesPerPixel;
icculus@1047
   569
    SDL_PixelFormat *dstfmt = info->dst;
icculus@1047
   570
    int dstbpp = dstfmt->BytesPerPixel;
icculus@1047
   571
    int copy_alpha = (srcfmt->Amask && dstfmt->Amask);
slouken@2267
   572
    unsigned alpha = dstfmt->Amask ? info->a : 0;
icculus@1047
   573
    Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
slouken@2267
   574
    Uint32 ckey = info->colorkey;
icculus@1047
   575
    vector unsigned int valpha;
icculus@1047
   576
    vector unsigned char vpermute;
icculus@1047
   577
    vector unsigned char vzero;
icculus@1047
   578
    vector unsigned int vckey;
icculus@1047
   579
    vector unsigned int vrgbmask;
icculus@1047
   580
    vpermute = calc_swizzle32(srcfmt, dstfmt);
slouken@2262
   581
    if (info->dst_w < 16) {
slouken@1895
   582
        if (copy_alpha) {
slouken@1487
   583
            BlitNtoNKeyCopyAlpha(info);
icculus@1047
   584
        } else {
slouken@1487
   585
            BlitNtoNKey(info);
icculus@1047
   586
        }
slouken@1487
   587
        return;
icculus@1047
   588
    }
icculus@1047
   589
    vzero = vec_splat_u8(0);
icculus@1047
   590
    if (alpha) {
slouken@1895
   591
        ((unsigned char *) &valpha)[0] = (unsigned char) alpha;
slouken@1895
   592
        valpha =
slouken@1895
   593
            (vector unsigned int) vec_splat((vector unsigned char) valpha, 0);
icculus@1047
   594
    } else {
slouken@1895
   595
        valpha = (vector unsigned int) vzero;
icculus@1047
   596
    }
icculus@1047
   597
    ckey &= rgbmask;
slouken@1895
   598
    ((unsigned int *) (char *) &vckey)[0] = ckey;
icculus@1047
   599
    vckey = vec_splat(vckey, 0);
slouken@1895
   600
    ((unsigned int *) (char *) &vrgbmask)[0] = rgbmask;
icculus@1047
   601
    vrgbmask = vec_splat(vrgbmask, 0);
icculus@1047
   602
icculus@1047
   603
    while (height--) {
icculus@1047
   604
#define ONE_PIXEL_BLEND(condition, widthvar) \
icculus@1047
   605
        if (copy_alpha) { \
icculus@1047
   606
            while (condition) { \
icculus@1162
   607
                Uint32 Pixel; \
icculus@1047
   608
                unsigned sR, sG, sB, sA; \
icculus@1162
   609
                DISEMBLE_RGBA((Uint8 *)srcp, srcbpp, srcfmt, Pixel, \
icculus@1047
   610
                          sR, sG, sB, sA); \
icculus@1162
   611
                if ( (Pixel & rgbmask) != ckey ) { \
icculus@1047
   612
                      ASSEMBLE_RGBA((Uint8 *)dstp, dstbpp, dstfmt, \
icculus@1047
   613
                            sR, sG, sB, sA); \
icculus@1047
   614
                } \
icculus@1162
   615
                dstp = (Uint32 *) (((Uint8 *) dstp) + dstbpp); \
icculus@1162
   616
                srcp = (Uint32 *) (((Uint8 *) srcp) + srcbpp); \
icculus@1047
   617
                widthvar--; \
icculus@1047
   618
            } \
icculus@1047
   619
        } else { \
icculus@1047
   620
            while (condition) { \
icculus@1162
   621
                Uint32 Pixel; \
icculus@1047
   622
                unsigned sR, sG, sB; \
icculus@1162
   623
                RETRIEVE_RGB_PIXEL((Uint8 *)srcp, srcbpp, Pixel); \
icculus@1162
   624
                if ( Pixel != ckey ) { \
icculus@1162
   625
                    RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); \
icculus@1047
   626
                    ASSEMBLE_RGBA((Uint8 *)dstp, dstbpp, dstfmt, \
icculus@1047
   627
                              sR, sG, sB, alpha); \
icculus@1047
   628
                } \
icculus@1162
   629
                dstp = (Uint32 *) (((Uint8 *)dstp) + dstbpp); \
icculus@1162
   630
                srcp = (Uint32 *) (((Uint8 *)srcp) + srcbpp); \
icculus@1047
   631
                widthvar--; \
icculus@1047
   632
            } \
icculus@1047
   633
        }
slouken@2262
   634
        int width = info->dst_w;
icculus@1047
   635
        ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
icculus@1047
   636
        assert(width > 0);
icculus@1047
   637
        if (width > 0) {
icculus@1047
   638
            int extrawidth = (width % 4);
icculus@1047
   639
            vector unsigned char valigner = VEC_ALIGNER(srcp);
icculus@1047
   640
            vector unsigned int vs = vec_ld(0, srcp);
icculus@1047
   641
            width -= extrawidth;
icculus@1047
   642
            assert(width >= 4);
icculus@1047
   643
            while (width) {
icculus@1047
   644
                vector unsigned char vsel;
icculus@1047
   645
                vector unsigned int vd;
icculus@1047
   646
                vector unsigned int voverflow = vec_ld(15, srcp);
icculus@1047
   647
                /* load the source vec */
icculus@1047
   648
                vs = vec_perm(vs, voverflow, valigner);
icculus@1047
   649
                /* vsel is set for items that match the key */
slouken@1895
   650
                vsel = (vector unsigned char) vec_and(vs, vrgbmask);
slouken@1895
   651
                vsel = (vector unsigned char) vec_cmpeq(vs, vckey);
icculus@1047
   652
                /* permute the src vec to the dest format */
icculus@1047
   653
                vs = vec_perm(vs, valpha, vpermute);
icculus@1047
   654
                /* load the destination vec */
icculus@1047
   655
                vd = vec_ld(0, dstp);
icculus@1047
   656
                /* select the source and dest into vs */
slouken@1895
   657
                vd = (vector unsigned int) vec_sel((vector unsigned char) vs,
slouken@1895
   658
                                                   (vector unsigned char) vd,
slouken@1895
   659
                                                   vsel);
slouken@1895
   660
icculus@1047
   661
                vec_st(vd, 0, dstp);
icculus@1047
   662
                srcp += 4;
icculus@1047
   663
                width -= 4;
icculus@1047
   664
                dstp += 4;
icculus@1047
   665
                vs = voverflow;
icculus@1047
   666
            }
icculus@1047
   667
            ONE_PIXEL_BLEND((extrawidth), extrawidth);
icculus@1047
   668
#undef ONE_PIXEL_BLEND
icculus@1047
   669
            srcp += srcskip >> 2;
icculus@1047
   670
            dstp += dstskip >> 2;
icculus@1047
   671
        }
icculus@1047
   672
    }
icculus@1047
   673
}
icculus@1047
   674
icculus@1047
   675
/* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */
icculus@1047
   676
/* Use this on a G5 */
slouken@1895
   677
static void
slouken@1895
   678
ConvertAltivec32to32_noprefetch(SDL_BlitInfo * info)
icculus@1047
   679
{
slouken@2262
   680
    int height = info->dst_h;
slouken@2262
   681
    Uint32 *src = (Uint32 *) info->src;
slouken@2267
   682
    int srcskip = info->src_skip;
slouken@2262
   683
    Uint32 *dst = (Uint32 *) info->dst;
slouken@2267
   684
    int dstskip = info->dst_skip;
icculus@1047
   685
    SDL_PixelFormat *srcfmt = info->src;
icculus@1047
   686
    SDL_PixelFormat *dstfmt = info->dst;
icculus@1047
   687
    vector unsigned int vzero = vec_splat_u32(0);
icculus@1047
   688
    vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt);
icculus@1047
   689
    if (dstfmt->Amask && !srcfmt->Amask) {
slouken@2267
   690
        if (info->a) {
icculus@1047
   691
            vector unsigned char valpha;
slouken@2267
   692
            ((unsigned char *) &valpha)[0] = info->a;
slouken@1895
   693
            vzero = (vector unsigned int) vec_splat(valpha, 0);
icculus@1047
   694
        }
icculus@1047
   695
    }
icculus@1047
   696
slouken@1339
   697
    assert(srcfmt->BytesPerPixel == 4);
slouken@1339
   698
    assert(dstfmt->BytesPerPixel == 4);
icculus@1047
   699
icculus@1047
   700
    while (height--) {
icculus@1047
   701
        vector unsigned char valigner;
icculus@1047
   702
        vector unsigned int vbits;
icculus@1047
   703
        vector unsigned int voverflow;
icculus@1047
   704
        Uint32 bits;
icculus@1047
   705
        Uint8 r, g, b, a;
icculus@1047
   706
slouken@2262
   707
        int width = info->dst_w;
icculus@1047
   708
        int extrawidth;
icculus@1047
   709
icculus@1047
   710
        /* do scalar until we can align... */
icculus@1047
   711
        while ((UNALIGNED_PTR(dst)) && (width)) {
icculus@1047
   712
            bits = *(src++);
icculus@1047
   713
            RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
icculus@1047
   714
            *(dst++) = MAKE8888(dstfmt, r, g, b, a);
icculus@1047
   715
            width--;
icculus@1047
   716
        }
icculus@1047
   717
icculus@1047
   718
        /* After all that work, here's the vector part! */
icculus@1047
   719
        extrawidth = (width % 4);
icculus@1047
   720
        width -= extrawidth;
icculus@1047
   721
        valigner = VEC_ALIGNER(src);
icculus@1047
   722
        vbits = vec_ld(0, src);
icculus@1047
   723
slouken@1895
   724
        while (width) {
icculus@1047
   725
            voverflow = vec_ld(15, src);
icculus@1047
   726
            src += 4;
icculus@1047
   727
            width -= 4;
slouken@1895
   728
            vbits = vec_perm(vbits, voverflow, valigner);       /* src is ready. */
slouken@1895
   729
            vbits = vec_perm(vbits, vzero, vpermute);   /* swizzle it. */
slouken@1895
   730
            vec_st(vbits, 0, dst);      /* store it back out. */
icculus@1047
   731
            dst += 4;
icculus@1047
   732
            vbits = voverflow;
icculus@1047
   733
        }
icculus@1047
   734
icculus@1047
   735
        assert(width == 0);
icculus@1047
   736
icculus@1047
   737
        /* cover pixels at the end of the row that didn't fit in 16 bytes. */
icculus@1047
   738
        while (extrawidth) {
slouken@1895
   739
            bits = *(src++);    /* max 7 pixels, don't bother with prefetch. */
icculus@1047
   740
            RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
icculus@1047
   741
            *(dst++) = MAKE8888(dstfmt, r, g, b, a);
icculus@1047
   742
            extrawidth--;
icculus@1047
   743
        }
icculus@1047
   744
slouken@1895
   745
        src += srcskip >> 2;    /* move to next row, accounting for pitch. */
icculus@1047
   746
        dst += dstskip >> 2;
icculus@1047
   747
    }
icculus@1047
   748
icculus@1047
   749
}
icculus@1047
   750
icculus@1047
   751
/* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */
icculus@1047
   752
/* Use this on a G4 */
slouken@1895
   753
static void
slouken@1895
   754
ConvertAltivec32to32_prefetch(SDL_BlitInfo * info)
icculus@1047
   755
{
slouken@1895
   756
    const int scalar_dst_lead = sizeof(Uint32) * 4;
slouken@1895
   757
    const int vector_dst_lead = sizeof(Uint32) * 16;
icculus@1047
   758
slouken@2262
   759
    int height = info->dst_h;
slouken@2262
   760
    Uint32 *src = (Uint32 *) info->src;
slouken@2267
   761
    int srcskip = info->src_skip;
slouken@2262
   762
    Uint32 *dst = (Uint32 *) info->dst;
slouken@2267
   763
    int dstskip = info->dst_skip;
icculus@1047
   764
    SDL_PixelFormat *srcfmt = info->src;
icculus@1047
   765
    SDL_PixelFormat *dstfmt = info->dst;
icculus@1047
   766
    vector unsigned int vzero = vec_splat_u32(0);
icculus@1047
   767
    vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt);
icculus@1047
   768
    if (dstfmt->Amask && !srcfmt->Amask) {
slouken@2267
   769
        if (info->a) {
icculus@1047
   770
            vector unsigned char valpha;
slouken@2267
   771
            ((unsigned char *) &valpha)[0] = info->a;
slouken@1895
   772
            vzero = (vector unsigned int) vec_splat(valpha, 0);
icculus@1047
   773
        }
icculus@1047
   774
    }
icculus@1047
   775
slouken@1339
   776
    assert(srcfmt->BytesPerPixel == 4);
slouken@1339
   777
    assert(dstfmt->BytesPerPixel == 4);
icculus@1047
   778
icculus@1047
   779
    while (height--) {
icculus@1047
   780
        vector unsigned char valigner;
icculus@1047
   781
        vector unsigned int vbits;
icculus@1047
   782
        vector unsigned int voverflow;
icculus@1047
   783
        Uint32 bits;
icculus@1047
   784
        Uint8 r, g, b, a;
icculus@1047
   785
slouken@2262
   786
        int width = info->dst_w;
icculus@1047
   787
        int extrawidth;
icculus@1047
   788
icculus@1047
   789
        /* do scalar until we can align... */
icculus@1047
   790
        while ((UNALIGNED_PTR(dst)) && (width)) {
slouken@1895
   791
            vec_dstt(src + scalar_dst_lead, DST_CTRL(2, 32, 1024),
slouken@1895
   792
                     DST_CHAN_SRC);
slouken@1895
   793
            vec_dstst(dst + scalar_dst_lead, DST_CTRL(2, 32, 1024),
slouken@1895
   794
                      DST_CHAN_DEST);
icculus@1047
   795
            bits = *(src++);
icculus@1047
   796
            RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
icculus@1047
   797
            *(dst++) = MAKE8888(dstfmt, r, g, b, a);
icculus@1047
   798
            width--;
icculus@1047
   799
        }
icculus@1047
   800
icculus@1047
   801
        /* After all that work, here's the vector part! */
icculus@1047
   802
        extrawidth = (width % 4);
icculus@1047
   803
        width -= extrawidth;
icculus@1047
   804
        valigner = VEC_ALIGNER(src);
icculus@1047
   805
        vbits = vec_ld(0, src);
icculus@1047
   806
icculus@1047
   807
        while (width) {
slouken@1895
   808
            vec_dstt(src + vector_dst_lead, DST_CTRL(2, 32, 1024),
slouken@1895
   809
                     DST_CHAN_SRC);
slouken@1895
   810
            vec_dstst(dst + vector_dst_lead, DST_CTRL(2, 32, 1024),
slouken@1895
   811
                      DST_CHAN_DEST);
icculus@1047
   812
            voverflow = vec_ld(15, src);
icculus@1047
   813
            src += 4;
icculus@1047
   814
            width -= 4;
slouken@1895
   815
            vbits = vec_perm(vbits, voverflow, valigner);       /* src is ready. */
slouken@1895
   816
            vbits = vec_perm(vbits, vzero, vpermute);   /* swizzle it. */
slouken@1895
   817
            vec_st(vbits, 0, dst);      /* store it back out. */
icculus@1047
   818
            dst += 4;
icculus@1047
   819
            vbits = voverflow;
icculus@1047
   820
        }
slouken@1895
   821
icculus@1047
   822
        assert(width == 0);
icculus@1047
   823
icculus@1047
   824
        /* cover pixels at the end of the row that didn't fit in 16 bytes. */
icculus@1047
   825
        while (extrawidth) {
slouken@1895
   826
            bits = *(src++);    /* max 7 pixels, don't bother with prefetch. */
icculus@1047
   827
            RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
icculus@1047
   828
            *(dst++) = MAKE8888(dstfmt, r, g, b, a);
icculus@1047
   829
            extrawidth--;
icculus@1047
   830
        }
icculus@1047
   831
slouken@1895
   832
        src += srcskip >> 2;    /* move to next row, accounting for pitch. */
icculus@1047
   833
        dst += dstskip >> 2;
icculus@1047
   834
    }
icculus@1047
   835
icculus@1047
   836
    vec_dss(DST_CHAN_SRC);
icculus@1047
   837
    vec_dss(DST_CHAN_DEST);
icculus@1047
   838
}
icculus@1047
   839
slouken@1895
   840
static Uint32
slouken@1895
   841
GetBlitFeatures(void)
icculus@1047
   842
{
icculus@1047
   843
    static Uint32 features = 0xffffffff;
icculus@1047
   844
    if (features == 0xffffffff) {
icculus@1047
   845
        /* Provide an override for testing .. */
slouken@1336
   846
        char *override = SDL_getenv("SDL_ALTIVEC_BLIT_FEATURES");
icculus@1047
   847
        if (override) {
icculus@1047
   848
            features = 0;
slouken@1336
   849
            SDL_sscanf(override, "%u", &features);
icculus@1047
   850
        } else {
slouken@1895
   851
            features = (0
slouken@1895
   852
                        /* Feature 1 is has-MMX */
slouken@1895
   853
                        | ((SDL_HasMMX())? 1 : 0)
slouken@1895
   854
                        /* Feature 2 is has-AltiVec */
slouken@1895
   855
                        | ((SDL_HasAltiVec())? 2 : 0)
slouken@1895
   856
                        /* Feature 4 is dont-use-prefetch */
slouken@1895
   857
                        /* !!!! FIXME: Check for G5 or later, not the cache size! Always prefetch on a G4. */
slouken@1895
   858
                        | ((GetL3CacheSize() == 0) ? 4 : 0)
slouken@1895
   859
                );
icculus@1047
   860
        }
icculus@1047
   861
    }
icculus@1047
   862
    return features;
icculus@1047
   863
}
slouken@1895
   864
slouken@1795
   865
#if __MWERKS__
slouken@1795
   866
#pragma altivec_model off
slouken@1795
   867
#endif
icculus@1047
   868
#else
icculus@1047
   869
/* Feature 1 is has-MMX */
icculus@1047
   870
#define GetBlitFeatures() ((Uint32)(SDL_HasMMX() ? 1 : 0))
icculus@1047
   871
#endif
icculus@1047
   872
icculus@1053
   873
/* This is now endian dependent */
slouken@1443
   874
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
icculus@1053
   875
#define HI	1
icculus@1053
   876
#define LO	0
slouken@1443
   877
#else /* SDL_BYTEORDER == SDL_BIG_ENDIAN */
icculus@1053
   878
#define HI	0
icculus@1053
   879
#define LO	1
icculus@1053
   880
#endif
icculus@1053
   881
slouken@0
   882
/* Special optimized blit for RGB 8-8-8 --> RGB 3-3-2 */
slouken@0
   883
#define RGB888_RGB332(dst, src) { \
slouken@1428
   884
	dst = (Uint8)((((src)&0x00E00000)>>16)| \
slouken@1428
   885
	              (((src)&0x0000E000)>>11)| \
slouken@1428
   886
	              (((src)&0x000000C0)>>6)); \
slouken@0
   887
}
slouken@1895
   888
static void
slouken@1895
   889
Blit_RGB888_index8(SDL_BlitInfo * info)
slouken@0
   890
{
slouken@0
   891
#ifndef USE_DUFFS_LOOP
slouken@1895
   892
    int c;
slouken@0
   893
#endif
slouken@1895
   894
    int width, height;
slouken@1895
   895
    Uint32 *src;
slouken@1895
   896
    const Uint8 *map;
slouken@1895
   897
    Uint8 *dst;
slouken@1895
   898
    int srcskip, dstskip;
slouken@0
   899
slouken@1895
   900
    /* Set up some basic variables */
slouken@2262
   901
    width = info->dst_w;
slouken@2262
   902
    height = info->dst_h;
slouken@2262
   903
    src = (Uint32 *) info->src;
slouken@2267
   904
    srcskip = info->src_skip / 4;
slouken@2262
   905
    dst = info->dst;
slouken@2267
   906
    dstskip = info->dst_skip;
slouken@1895
   907
    map = info->table;
slouken@0
   908
slouken@1895
   909
    if (map == NULL) {
slouken@1895
   910
        while (height--) {
slouken@0
   911
#ifdef USE_DUFFS_LOOP
slouken@1895
   912
			/* *INDENT-OFF* */
slouken@0
   913
			DUFFS_LOOP(
slouken@0
   914
				RGB888_RGB332(*dst++, *src);
slouken@0
   915
			, width);
slouken@1895
   916
			/* *INDENT-ON* */
slouken@0
   917
#else
slouken@1895
   918
            for (c = width / 4; c; --c) {
slouken@1895
   919
                /* Pack RGB into 8bit pixel */
slouken@1895
   920
                ++src;
slouken@1895
   921
                RGB888_RGB332(*dst++, *src);
slouken@1895
   922
                ++src;
slouken@1895
   923
                RGB888_RGB332(*dst++, *src);
slouken@1895
   924
                ++src;
slouken@1895
   925
                RGB888_RGB332(*dst++, *src);
slouken@1895
   926
                ++src;
slouken@1895
   927
            }
slouken@1895
   928
            switch (width & 3) {
slouken@1895
   929
            case 3:
slouken@1895
   930
                RGB888_RGB332(*dst++, *src);
slouken@1895
   931
                ++src;
slouken@1895
   932
            case 2:
slouken@1895
   933
                RGB888_RGB332(*dst++, *src);
slouken@1895
   934
                ++src;
slouken@1895
   935
            case 1:
slouken@1895
   936
                RGB888_RGB332(*dst++, *src);
slouken@1895
   937
                ++src;
slouken@1895
   938
            }
slouken@0
   939
#endif /* USE_DUFFS_LOOP */
slouken@1895
   940
            src += srcskip;
slouken@1895
   941
            dst += dstskip;
slouken@1895
   942
        }
slouken@1895
   943
    } else {
slouken@1895
   944
        int Pixel;
slouken@0
   945
slouken@1895
   946
        while (height--) {
slouken@0
   947
#ifdef USE_DUFFS_LOOP
slouken@1895
   948
			/* *INDENT-OFF* */
slouken@0
   949
			DUFFS_LOOP(
icculus@1162
   950
				RGB888_RGB332(Pixel, *src);
icculus@1162
   951
				*dst++ = map[Pixel];
slouken@0
   952
				++src;
slouken@0
   953
			, width);
slouken@1895
   954
			/* *INDENT-ON* */
slouken@0
   955
#else
slouken@1895
   956
            for (c = width / 4; c; --c) {
slouken@1895
   957
                /* Pack RGB into 8bit pixel */
slouken@1895
   958
                RGB888_RGB332(Pixel, *src);
slouken@1895
   959
                *dst++ = map[Pixel];
slouken@1895
   960
                ++src;
slouken@1895
   961
                RGB888_RGB332(Pixel, *src);
slouken@1895
   962
                *dst++ = map[Pixel];
slouken@1895
   963
                ++src;
slouken@1895
   964
                RGB888_RGB332(Pixel, *src);
slouken@1895
   965
                *dst++ = map[Pixel];
slouken@1895
   966
                ++src;
slouken@1895
   967
                RGB888_RGB332(Pixel, *src);
slouken@1895
   968
                *dst++ = map[Pixel];
slouken@1895
   969
                ++src;
slouken@1895
   970
            }
slouken@1895
   971
            switch (width & 3) {
slouken@1895
   972
            case 3:
slouken@1895
   973
                RGB888_RGB332(Pixel, *src);
slouken@1895
   974
                *dst++ = map[Pixel];
slouken@1895
   975
                ++src;
slouken@1895
   976
            case 2:
slouken@1895
   977
                RGB888_RGB332(Pixel, *src);
slouken@1895
   978
                *dst++ = map[Pixel];
slouken@1895
   979
                ++src;
slouken@1895
   980
            case 1:
slouken@1895
   981
                RGB888_RGB332(Pixel, *src);
slouken@1895
   982
                *dst++ = map[Pixel];
slouken@1895
   983
                ++src;
slouken@1895
   984
            }
slouken@0
   985
#endif /* USE_DUFFS_LOOP */
slouken@1895
   986
            src += srcskip;
slouken@1895
   987
            dst += dstskip;
slouken@1895
   988
        }
slouken@1895
   989
    }
slouken@0
   990
}
slouken@1895
   991
slouken@0
   992
/* Special optimized blit for RGB 8-8-8 --> RGB 5-5-5 */
slouken@0
   993
#define RGB888_RGB555(dst, src) { \
slouken@1428
   994
	*(Uint16 *)(dst) = (Uint16)((((*src)&0x00F80000)>>9)| \
slouken@1428
   995
	                            (((*src)&0x0000F800)>>6)| \
slouken@1428
   996
	                            (((*src)&0x000000F8)>>3)); \
slouken@0
   997
}
slouken@0
   998
#define RGB888_RGB555_TWO(dst, src) { \
slouken@0
   999
	*(Uint32 *)(dst) = (((((src[HI])&0x00F80000)>>9)| \
slouken@0
  1000
	                     (((src[HI])&0x0000F800)>>6)| \
slouken@0
  1001
	                     (((src[HI])&0x000000F8)>>3))<<16)| \
slouken@0
  1002
	                     (((src[LO])&0x00F80000)>>9)| \
slouken@0
  1003
	                     (((src[LO])&0x0000F800)>>6)| \
slouken@0
  1004
	                     (((src[LO])&0x000000F8)>>3); \
slouken@0
  1005
}
slouken@1895
  1006
static void
slouken@1895
  1007
Blit_RGB888_RGB555(SDL_BlitInfo * info)
slouken@0
  1008
{
slouken@0
  1009
#ifndef USE_DUFFS_LOOP
slouken@1895
  1010
    int c;
slouken@0
  1011
#endif
slouken@1895
  1012
    int width, height;
slouken@1895
  1013
    Uint32 *src;
slouken@1895
  1014
    Uint16 *dst;
slouken@1895
  1015
    int srcskip, dstskip;
slouken@0
  1016
slouken@1895
  1017
    /* Set up some basic variables */
slouken@2262
  1018
    width = info->dst_w;
slouken@2262
  1019
    height = info->dst_h;
slouken@2262
  1020
    src = (Uint32 *) info->src;
slouken@2267
  1021
    srcskip = info->src_skip / 4;
slouken@2262
  1022
    dst = (Uint16 *) info->dst;
slouken@2267
  1023
    dstskip = info->dst_skip / 2;
slouken@0
  1024
slouken@0
  1025
#ifdef USE_DUFFS_LOOP
slouken@1895
  1026
    while (height--) {
slouken@1895
  1027
		/* *INDENT-OFF* */
slouken@0
  1028
		DUFFS_LOOP(
slouken@0
  1029
			RGB888_RGB555(dst, src);
slouken@0
  1030
			++src;
slouken@0
  1031
			++dst;
slouken@0
  1032
		, width);
slouken@1895
  1033
		/* *INDENT-ON* */
slouken@1895
  1034
        src += srcskip;
slouken@1895
  1035
        dst += dstskip;
slouken@1895
  1036
    }
slouken@0
  1037
#else
slouken@1895
  1038
    /* Memory align at 4-byte boundary, if necessary */
slouken@1895
  1039
    if ((long) dst & 0x03) {
slouken@1895
  1040
        /* Don't do anything if width is 0 */
slouken@1895
  1041
        if (width == 0) {
slouken@1895
  1042
            return;
slouken@1895
  1043
        }
slouken@1895
  1044
        --width;
slouken@0
  1045
slouken@1895
  1046
        while (height--) {
slouken@1895
  1047
            /* Perform copy alignment */
slouken@1895
  1048
            RGB888_RGB555(dst, src);
slouken@1895
  1049
            ++src;
slouken@1895
  1050
            ++dst;
slouken@0
  1051
slouken@1895
  1052
            /* Copy in 4 pixel chunks */
slouken@1895
  1053
            for (c = width / 4; c; --c) {
slouken@1895
  1054
                RGB888_RGB555_TWO(dst, src);
slouken@1895
  1055
                src += 2;
slouken@1895
  1056
                dst += 2;
slouken@1895
  1057
                RGB888_RGB555_TWO(dst, src);
slouken@1895
  1058
                src += 2;
slouken@1895
  1059
                dst += 2;
slouken@1895
  1060
            }
slouken@1895
  1061
            /* Get any leftovers */
slouken@1895
  1062
            switch (width & 3) {
slouken@1895
  1063
            case 3:
slouken@1895
  1064
                RGB888_RGB555(dst, src);
slouken@1895
  1065
                ++src;
slouken@1895
  1066
                ++dst;
slouken@1895
  1067
            case 2:
slouken@1895
  1068
                RGB888_RGB555_TWO(dst, src);
slouken@1895
  1069
                src += 2;
slouken@1895
  1070
                dst += 2;
slouken@1895
  1071
                break;
slouken@1895
  1072
            case 1:
slouken@1895
  1073
                RGB888_RGB555(dst, src);
slouken@1895
  1074
                ++src;
slouken@1895
  1075
                ++dst;
slouken@1895
  1076
                break;
slouken@1895
  1077
            }
slouken@1895
  1078
            src += srcskip;
slouken@1895
  1079
            dst += dstskip;
slouken@1895
  1080
        }
slouken@1895
  1081
    } else {
slouken@1895
  1082
        while (height--) {
slouken@1895
  1083
            /* Copy in 4 pixel chunks */
slouken@1895
  1084
            for (c = width / 4; c; --c) {
slouken@1895
  1085
                RGB888_RGB555_TWO(dst, src);
slouken@1895
  1086
                src += 2;
slouken@1895
  1087
                dst += 2;
slouken@1895
  1088
                RGB888_RGB555_TWO(dst, src);
slouken@1895
  1089
                src += 2;
slouken@1895
  1090
                dst += 2;
slouken@1895
  1091
            }
slouken@1895
  1092
            /* Get any leftovers */
slouken@1895
  1093
            switch (width & 3) {
slouken@1895
  1094
            case 3:
slouken@1895
  1095
                RGB888_RGB555(dst, src);
slouken@1895
  1096
                ++src;
slouken@1895
  1097
                ++dst;
slouken@1895
  1098
            case 2:
slouken@1895
  1099
                RGB888_RGB555_TWO(dst, src);
slouken@1895
  1100
                src += 2;
slouken@1895
  1101
                dst += 2;
slouken@1895
  1102
                break;
slouken@1895
  1103
            case 1:
slouken@1895
  1104
                RGB888_RGB555(dst, src);
slouken@1895
  1105
                ++src;
slouken@1895
  1106
                ++dst;
slouken@1895
  1107
                break;
slouken@1895
  1108
            }
slouken@1895
  1109
            src += srcskip;
slouken@1895
  1110
            dst += dstskip;
slouken@1895
  1111
        }
slouken@1895
  1112
    }
slouken@0
  1113
#endif /* USE_DUFFS_LOOP */
slouken@0
  1114
}
slouken@1895
  1115
slouken@0
  1116
/* Special optimized blit for RGB 8-8-8 --> RGB 5-6-5 */
slouken@0
  1117
#define RGB888_RGB565(dst, src) { \
slouken@1428
  1118
	*(Uint16 *)(dst) = (Uint16)((((*src)&0x00F80000)>>8)| \
slouken@1428
  1119
	                            (((*src)&0x0000FC00)>>5)| \
slouken@1428
  1120
	                            (((*src)&0x000000F8)>>3)); \
slouken@0
  1121
}
slouken@0
  1122
#define RGB888_RGB565_TWO(dst, src) { \
slouken@0
  1123
	*(Uint32 *)(dst) = (((((src[HI])&0x00F80000)>>8)| \
slouken@0
  1124
	                     (((src[HI])&0x0000FC00)>>5)| \
slouken@0
  1125
	                     (((src[HI])&0x000000F8)>>3))<<16)| \
slouken@0
  1126
	                     (((src[LO])&0x00F80000)>>8)| \
slouken@0
  1127
	                     (((src[LO])&0x0000FC00)>>5)| \
slouken@0
  1128
	                     (((src[LO])&0x000000F8)>>3); \
slouken@0
  1129
}
slouken@1895
  1130
static void
slouken@1895
  1131
Blit_RGB888_RGB565(SDL_BlitInfo * info)
slouken@0
  1132
{
slouken@0
  1133
#ifndef USE_DUFFS_LOOP
slouken@1895
  1134
    int c;
slouken@0
  1135
#endif
slouken@1895
  1136
    int width, height;
slouken@1895
  1137
    Uint32 *src;
slouken@1895
  1138
    Uint16 *dst;
slouken@1895
  1139
    int srcskip, dstskip;
slouken@0
  1140
slouken@1895
  1141
    /* Set up some basic variables */
slouken@2262
  1142
    width = info->dst_w;
slouken@2262
  1143
    height = info->dst_h;
slouken@2262
  1144
    src = (Uint32 *) info->src;
slouken@2267
  1145
    srcskip = info->src_skip / 4;
slouken@2262
  1146
    dst = (Uint16 *) info->dst;
slouken@2267
  1147
    dstskip = info->dst_skip / 2;
slouken@0
  1148
slouken@0
  1149
#ifdef USE_DUFFS_LOOP
slouken@1895
  1150
    while (height--) {
slouken@1895
  1151
		/* *INDENT-OFF* */
slouken@0
  1152
		DUFFS_LOOP(
slouken@0
  1153
			RGB888_RGB565(dst, src);
slouken@0
  1154
			++src;
slouken@0
  1155
			++dst;
slouken@0
  1156
		, width);
slouken@1895
  1157
		/* *INDENT-ON* */
slouken@1895
  1158
        src += srcskip;
slouken@1895
  1159
        dst += dstskip;
slouken@1895
  1160
    }
slouken@0
  1161
#else
slouken@1895
  1162
    /* Memory align at 4-byte boundary, if necessary */
slouken@1895
  1163
    if ((long) dst & 0x03) {
slouken@1895
  1164
        /* Don't do anything if width is 0 */
slouken@1895
  1165
        if (width == 0) {
slouken@1895
  1166
            return;
slouken@1895
  1167
        }
slouken@1895
  1168
        --width;
slouken@0
  1169
slouken@1895
  1170
        while (height--) {
slouken@1895
  1171
            /* Perform copy alignment */
slouken@1895
  1172
            RGB888_RGB565(dst, src);
slouken@1895
  1173
            ++src;
slouken@1895
  1174
            ++dst;
slouken@0
  1175
slouken@1895
  1176
            /* Copy in 4 pixel chunks */
slouken@1895
  1177
            for (c = width / 4; c; --c) {
slouken@1895
  1178
                RGB888_RGB565_TWO(dst, src);
slouken@1895
  1179
                src += 2;
slouken@1895
  1180
                dst += 2;
slouken@1895
  1181
                RGB888_RGB565_TWO(dst, src);
slouken@1895
  1182
                src += 2;
slouken@1895
  1183
                dst += 2;
slouken@1895
  1184
            }
slouken@1895
  1185
            /* Get any leftovers */
slouken@1895
  1186
            switch (width & 3) {
slouken@1895
  1187
            case 3:
slouken@1895
  1188
                RGB888_RGB565(dst, src);
slouken@1895
  1189
                ++src;
slouken@1895
  1190
                ++dst;
slouken@1895
  1191
            case 2:
slouken@1895
  1192
                RGB888_RGB565_TWO(dst, src);
slouken@1895
  1193
                src += 2;
slouken@1895
  1194
                dst += 2;
slouken@1895
  1195
                break;
slouken@1895
  1196
            case 1:
slouken@1895
  1197
                RGB888_RGB565(dst, src);
slouken@1895
  1198
                ++src;
slouken@1895
  1199
                ++dst;
slouken@1895
  1200
                break;
slouken@1895
  1201
            }
slouken@1895
  1202
            src += srcskip;
slouken@1895
  1203
            dst += dstskip;
slouken@1895
  1204
        }
slouken@1895
  1205
    } else {
slouken@1895
  1206
        while (height--) {
slouken@1895
  1207
            /* Copy in 4 pixel chunks */
slouken@1895
  1208
            for (c = width / 4; c; --c) {
slouken@1895
  1209
                RGB888_RGB565_TWO(dst, src);
slouken@1895
  1210
                src += 2;
slouken@1895
  1211
                dst += 2;
slouken@1895
  1212
                RGB888_RGB565_TWO(dst, src);
slouken@1895
  1213
                src += 2;
slouken@1895
  1214
                dst += 2;
slouken@1895
  1215
            }
slouken@1895
  1216
            /* Get any leftovers */
slouken@1895
  1217
            switch (width & 3) {
slouken@1895
  1218
            case 3:
slouken@1895
  1219
                RGB888_RGB565(dst, src);
slouken@1895
  1220
                ++src;
slouken@1895
  1221
                ++dst;
slouken@1895
  1222
            case 2:
slouken@1895
  1223
                RGB888_RGB565_TWO(dst, src);
slouken@1895
  1224
                src += 2;
slouken@1895
  1225
                dst += 2;
slouken@1895
  1226
                break;
slouken@1895
  1227
            case 1:
slouken@1895
  1228
                RGB888_RGB565(dst, src);
slouken@1895
  1229
                ++src;
slouken@1895
  1230
                ++dst;
slouken@1895
  1231
                break;
slouken@1895
  1232
            }
slouken@1895
  1233
            src += srcskip;
slouken@1895
  1234
            dst += dstskip;
slouken@1895
  1235
        }
slouken@1895
  1236
    }
slouken@0
  1237
#endif /* USE_DUFFS_LOOP */
slouken@0
  1238
}
slouken@0
  1239
slouken@0
  1240
slouken@0
  1241
/* Special optimized blit for RGB 5-6-5 --> 32-bit RGB surfaces */
icculus@1047
  1242
#define RGB565_32(dst, src, map) (map[src[LO]*2] + map[src[HI]*2+1])
slouken@1895
  1243
static void
slouken@1895
  1244
Blit_RGB565_32(SDL_BlitInfo * info, const Uint32 * map)
slouken@0
  1245
{
slouken@0
  1246
#ifndef USE_DUFFS_LOOP
slouken@1895
  1247
    int c;
slouken@0
  1248
#endif
slouken@1895
  1249
    int width, height;
slouken@1895
  1250
    Uint8 *src;
slouken@1895
  1251
    Uint32 *dst;
slouken@1895
  1252
    int srcskip, dstskip;
slouken@0
  1253
slouken@1895
  1254
    /* Set up some basic variables */
slouken@2262
  1255
    width = info->dst_w;
slouken@2262
  1256
    height = info->dst_h;
slouken@2262
  1257
    src = (Uint8 *) info->src;
slouken@2267
  1258
    srcskip = info->src_skip;
slouken@2262
  1259
    dst = (Uint32 *) info->dst;
slouken@2267
  1260
    dstskip = info->dst_skip / 4;
slouken@0
  1261
slouken@0
  1262
#ifdef USE_DUFFS_LOOP
slouken@1895
  1263
    while (height--) {
slouken@1895
  1264
		/* *INDENT-OFF* */
slouken@0
  1265
		DUFFS_LOOP(
slouken@0
  1266
		{
slouken@0
  1267
			*dst++ = RGB565_32(dst, src, map);
slouken@0
  1268
			src += 2;
slouken@0
  1269
		},
slouken@0
  1270
		width);
slouken@1895
  1271
		/* *INDENT-ON* */
slouken@1895
  1272
        src += srcskip;
slouken@1895
  1273
        dst += dstskip;
slouken@1895
  1274
    }
slouken@0
  1275
#else
slouken@1895
  1276
    while (height--) {
slouken@1895
  1277
        /* Copy in 4 pixel chunks */
slouken@1895
  1278
        for (c = width / 4; c; --c) {
slouken@1895
  1279
            *dst++ = RGB565_32(dst, src, map);
slouken@1895
  1280
            src += 2;
slouken@1895
  1281
            *dst++ = RGB565_32(dst, src, map);
slouken@1895
  1282
            src += 2;
slouken@1895
  1283
            *dst++ = RGB565_32(dst, src, map);
slouken@1895
  1284
            src += 2;
slouken@1895
  1285
            *dst++ = RGB565_32(dst, src, map);
slouken@1895
  1286
            src += 2;
slouken@1895
  1287
        }
slouken@1895
  1288
        /* Get any leftovers */
slouken@1895
  1289
        switch (width & 3) {
slouken@1895
  1290
        case 3:
slouken@1895
  1291
            *dst++ = RGB565_32(dst, src, map);
slouken@1895
  1292
            src += 2;
slouken@1895
  1293
        case 2:
slouken@1895
  1294
            *dst++ = RGB565_32(dst, src, map);
slouken@1895
  1295
            src += 2;
slouken@1895
  1296
        case 1:
slouken@1895
  1297
            *dst++ = RGB565_32(dst, src, map);
slouken@1895
  1298
            src += 2;
slouken@1895
  1299
            break;
slouken@1895
  1300
        }
slouken@1895
  1301
        src += srcskip;
slouken@1895
  1302
        dst += dstskip;
slouken@1895
  1303
    }
slouken@0
  1304
#endif /* USE_DUFFS_LOOP */
slouken@0
  1305
}
slouken@0
  1306
slouken@0
  1307
/* Special optimized blit for RGB 5-6-5 --> ARGB 8-8-8-8 */
slouken@91
  1308
static const Uint32 RGB565_ARGB8888_LUT[512] = {
slouken@1895
  1309
    0x00000000, 0xff000000, 0x00000008, 0xff002000,
slouken@1895
  1310
    0x00000010, 0xff004000, 0x00000018, 0xff006100,
slouken@1895
  1311
    0x00000020, 0xff008100, 0x00000029, 0xff00a100,
slouken@1895
  1312
    0x00000031, 0xff00c200, 0x00000039, 0xff00e200,
slouken@1895
  1313
    0x00000041, 0xff080000, 0x0000004a, 0xff082000,
slouken@1895
  1314
    0x00000052, 0xff084000, 0x0000005a, 0xff086100,
slouken@1895
  1315
    0x00000062, 0xff088100, 0x0000006a, 0xff08a100,
slouken@1895
  1316
    0x00000073, 0xff08c200, 0x0000007b, 0xff08e200,
slouken@1895
  1317
    0x00000083, 0xff100000, 0x0000008b, 0xff102000,
slouken@1895
  1318
    0x00000094, 0xff104000, 0x0000009c, 0xff106100,
slouken@1895
  1319
    0x000000a4, 0xff108100, 0x000000ac, 0xff10a100,
slouken@1895
  1320
    0x000000b4, 0xff10c200, 0x000000bd, 0xff10e200,
slouken@1895
  1321
    0x000000c5, 0xff180000, 0x000000cd, 0xff182000,
slouken@1895
  1322
    0x000000d5, 0xff184000, 0x000000de, 0xff186100,
slouken@1895
  1323
    0x000000e6, 0xff188100, 0x000000ee, 0xff18a100,
slouken@1895
  1324
    0x000000f6, 0xff18c200, 0x000000ff, 0xff18e200,
slouken@1895
  1325
    0x00000400, 0xff200000, 0x00000408, 0xff202000,
slouken@1895
  1326
    0x00000410, 0xff204000, 0x00000418, 0xff206100,
slouken@1895
  1327
    0x00000420, 0xff208100, 0x00000429, 0xff20a100,
slouken@1895
  1328
    0x00000431, 0xff20c200, 0x00000439, 0xff20e200,
slouken@1895
  1329
    0x00000441, 0xff290000, 0x0000044a, 0xff292000,
slouken@1895
  1330
    0x00000452, 0xff294000, 0x0000045a, 0xff296100,
slouken@1895
  1331
    0x00000462, 0xff298100, 0x0000046a, 0xff29a100,
slouken@1895
  1332
    0x00000473, 0xff29c200, 0x0000047b, 0xff29e200,
slouken@1895
  1333
    0x00000483, 0xff310000, 0x0000048b, 0xff312000,
slouken@1895
  1334
    0x00000494, 0xff314000, 0x0000049c, 0xff316100,
slouken@1895
  1335
    0x000004a4, 0xff318100, 0x000004ac, 0xff31a100,
slouken@1895
  1336
    0x000004b4, 0xff31c200, 0x000004bd, 0xff31e200,
slouken@1895
  1337
    0x000004c5, 0xff390000, 0x000004cd, 0xff392000,
slouken@1895
  1338
    0x000004d5, 0xff394000, 0x000004de, 0xff396100,
slouken@1895
  1339
    0x000004e6, 0xff398100, 0x000004ee, 0xff39a100,
slouken@1895
  1340
    0x000004f6, 0xff39c200, 0x000004ff, 0xff39e200,
slouken@1895
  1341
    0x00000800, 0xff410000, 0x00000808, 0xff412000,
slouken@1895
  1342
    0x00000810, 0xff414000, 0x00000818, 0xff416100,
slouken@1895
  1343
    0x00000820, 0xff418100, 0x00000829, 0xff41a100,
slouken@1895
  1344
    0x00000831, 0xff41c200, 0x00000839, 0xff41e200,
slouken@1895
  1345
    0x00000841, 0xff4a0000, 0x0000084a, 0xff4a2000,
slouken@1895
  1346
    0x00000852, 0xff4a4000, 0x0000085a, 0xff4a6100,
slouken@1895
  1347
    0x00000862, 0xff4a8100, 0x0000086a, 0xff4aa100,
slouken@1895
  1348
    0x00000873, 0xff4ac200, 0x0000087b, 0xff4ae200,
slouken@1895
  1349
    0x00000883, 0xff520000, 0x0000088b, 0xff522000,
slouken@1895
  1350
    0x00000894, 0xff524000, 0x0000089c, 0xff526100,
slouken@1895
  1351
    0x000008a4, 0xff528100, 0x000008ac, 0xff52a100,
slouken@1895
  1352
    0x000008b4, 0xff52c200, 0x000008bd, 0xff52e200,
slouken@1895
  1353
    0x000008c5, 0xff5a0000, 0x000008cd, 0xff5a2000,
slouken@1895
  1354
    0x000008d5, 0xff5a4000, 0x000008de, 0xff5a6100,
slouken@1895
  1355
    0x000008e6, 0xff5a8100, 0x000008ee, 0xff5aa100,
slouken@1895
  1356
    0x000008f6, 0xff5ac200, 0x000008ff, 0xff5ae200,
slouken@1895
  1357
    0x00000c00, 0xff620000, 0x00000c08, 0xff622000,
slouken@1895
  1358
    0x00000c10, 0xff624000, 0x00000c18, 0xff626100,
slouken@1895
  1359
    0x00000c20, 0xff628100, 0x00000c29, 0xff62a100,
slouken@1895
  1360
    0x00000c31, 0xff62c200, 0x00000c39, 0xff62e200,
slouken@1895
  1361
    0x00000c41, 0xff6a0000, 0x00000c4a, 0xff6a2000,
slouken@1895
  1362
    0x00000c52, 0xff6a4000, 0x00000c5a, 0xff6a6100,
slouken@1895
  1363
    0x00000c62, 0xff6a8100, 0x00000c6a, 0xff6aa100,
slouken@1895
  1364
    0x00000c73, 0xff6ac200, 0x00000c7b, 0xff6ae200,
slouken@1895
  1365
    0x00000c83, 0xff730000, 0x00000c8b, 0xff732000,
slouken@1895
  1366
    0x00000c94, 0xff734000, 0x00000c9c, 0xff736100,
slouken@1895
  1367
    0x00000ca4, 0xff738100, 0x00000cac, 0xff73a100,
slouken@1895
  1368
    0x00000cb4, 0xff73c200, 0x00000cbd, 0xff73e200,
slouken@1895
  1369
    0x00000cc5, 0xff7b0000, 0x00000ccd, 0xff7b2000,
slouken@1895
  1370
    0x00000cd5, 0xff7b4000, 0x00000cde, 0xff7b6100,
slouken@1895
  1371
    0x00000ce6, 0xff7b8100, 0x00000cee, 0xff7ba100,
slouken@1895
  1372
    0x00000cf6, 0xff7bc200, 0x00000cff, 0xff7be200,
slouken@1895
  1373
    0x00001000, 0xff830000, 0x00001008, 0xff832000,
slouken@1895
  1374
    0x00001010, 0xff834000, 0x00001018, 0xff836100,
slouken@1895
  1375
    0x00001020, 0xff838100, 0x00001029, 0xff83a100,
slouken@1895
  1376
    0x00001031, 0xff83c200, 0x00001039, 0xff83e200,
slouken@1895
  1377
    0x00001041, 0xff8b0000, 0x0000104a, 0xff8b2000,
slouken@1895
  1378
    0x00001052, 0xff8b4000, 0x0000105a, 0xff8b6100,
slouken@1895
  1379
    0x00001062, 0xff8b8100, 0x0000106a, 0xff8ba100,
slouken@1895
  1380
    0x00001073, 0xff8bc200, 0x0000107b, 0xff8be200,
slouken@1895
  1381
    0x00001083, 0xff940000, 0x0000108b, 0xff942000,
slouken@1895
  1382
    0x00001094, 0xff944000, 0x0000109c, 0xff946100,
slouken@1895
  1383
    0x000010a4, 0xff948100, 0x000010ac, 0xff94a100,
slouken@1895
  1384
    0x000010b4, 0xff94c200, 0x000010bd, 0xff94e200,
slouken@1895
  1385
    0x000010c5, 0xff9c0000, 0x000010cd, 0xff9c2000,
slouken@1895
  1386
    0x000010d5, 0xff9c4000, 0x000010de, 0xff9c6100,
slouken@1895
  1387
    0x000010e6, 0xff9c8100, 0x000010ee, 0xff9ca100,
slouken@1895
  1388
    0x000010f6, 0xff9cc200, 0x000010ff, 0xff9ce200,
slouken@1895
  1389
    0x00001400, 0xffa40000, 0x00001408, 0xffa42000,
slouken@1895
  1390
    0x00001410, 0xffa44000, 0x00001418, 0xffa46100,
slouken@1895
  1391
    0x00001420, 0xffa48100, 0x00001429, 0xffa4a100,
slouken@1895
  1392
    0x00001431, 0xffa4c200, 0x00001439, 0xffa4e200,
slouken@1895
  1393
    0x00001441, 0xffac0000, 0x0000144a, 0xffac2000,
slouken@1895
  1394
    0x00001452, 0xffac4000, 0x0000145a, 0xffac6100,
slouken@1895
  1395
    0x00001462, 0xffac8100, 0x0000146a, 0xffaca100,
slouken@1895
  1396
    0x00001473, 0xffacc200, 0x0000147b, 0xfface200,
slouken@1895
  1397
    0x00001483, 0xffb40000, 0x0000148b, 0xffb42000,
slouken@1895
  1398
    0x00001494, 0xffb44000, 0x0000149c, 0xffb46100,
slouken@1895
  1399
    0x000014a4, 0xffb48100, 0x000014ac, 0xffb4a100,
slouken@1895
  1400
    0x000014b4, 0xffb4c200, 0x000014bd, 0xffb4e200,
slouken@1895
  1401
    0x000014c5, 0xffbd0000, 0x000014cd, 0xffbd2000,
slouken@1895
  1402
    0x000014d5, 0xffbd4000, 0x000014de, 0xffbd6100,
slouken@1895
  1403
    0x000014e6, 0xffbd8100, 0x000014ee, 0xffbda100,
slouken@1895
  1404
    0x000014f6, 0xffbdc200, 0x000014ff, 0xffbde200,
slouken@1895
  1405
    0x00001800, 0xffc50000, 0x00001808, 0xffc52000,
slouken@1895
  1406
    0x00001810, 0xffc54000, 0x00001818, 0xffc56100,
slouken@1895
  1407
    0x00001820, 0xffc58100, 0x00001829, 0xffc5a100,
slouken@1895
  1408
    0x00001831, 0xffc5c200, 0x00001839, 0xffc5e200,
slouken@1895
  1409
    0x00001841, 0xffcd0000, 0x0000184a, 0xffcd2000,
slouken@1895
  1410
    0x00001852, 0xffcd4000, 0x0000185a, 0xffcd6100,
slouken@1895
  1411
    0x00001862, 0xffcd8100, 0x0000186a, 0xffcda100,
slouken@1895
  1412
    0x00001873, 0xffcdc200, 0x0000187b, 0xffcde200,
slouken@1895
  1413
    0x00001883, 0xffd50000, 0x0000188b, 0xffd52000,
slouken@1895
  1414
    0x00001894, 0xffd54000, 0x0000189c, 0xffd56100,
slouken@1895
  1415
    0x000018a4, 0xffd58100, 0x000018ac, 0xffd5a100,
slouken@1895
  1416
    0x000018b4, 0xffd5c200, 0x000018bd, 0xffd5e200,
slouken@1895
  1417
    0x000018c5, 0xffde0000, 0x000018cd, 0xffde2000,
slouken@1895
  1418
    0x000018d5, 0xffde4000, 0x000018de, 0xffde6100,
slouken@1895
  1419
    0x000018e6, 0xffde8100, 0x000018ee, 0xffdea100,
slouken@1895
  1420
    0x000018f6, 0xffdec200, 0x000018ff, 0xffdee200,
slouken@1895
  1421
    0x00001c00, 0xffe60000, 0x00001c08, 0xffe62000,
slouken@1895
  1422
    0x00001c10, 0xffe64000, 0x00001c18, 0xffe66100,
slouken@1895
  1423
    0x00001c20, 0xffe68100, 0x00001c29, 0xffe6a100,
slouken@1895
  1424
    0x00001c31, 0xffe6c200, 0x00001c39, 0xffe6e200,
slouken@1895
  1425
    0x00001c41, 0xffee0000, 0x00001c4a, 0xffee2000,
slouken@1895
  1426
    0x00001c52, 0xffee4000, 0x00001c5a, 0xffee6100,
slouken@1895
  1427
    0x00001c62, 0xffee8100, 0x00001c6a, 0xffeea100,
slouken@1895
  1428
    0x00001c73, 0xffeec200, 0x00001c7b, 0xffeee200,
slouken@1895
  1429
    0x00001c83, 0xfff60000, 0x00001c8b, 0xfff62000,
slouken@1895
  1430
    0x00001c94, 0xfff64000, 0x00001c9c, 0xfff66100,
slouken@1895
  1431
    0x00001ca4, 0xfff68100, 0x00001cac, 0xfff6a100,
slouken@1895
  1432
    0x00001cb4, 0xfff6c200, 0x00001cbd, 0xfff6e200,
slouken@1895
  1433
    0x00001cc5, 0xffff0000, 0x00001ccd, 0xffff2000,
slouken@1895
  1434
    0x00001cd5, 0xffff4000, 0x00001cde, 0xffff6100,
slouken@1895
  1435
    0x00001ce6, 0xffff8100, 0x00001cee, 0xffffa100,
slouken@1895
  1436
    0x00001cf6, 0xffffc200, 0x00001cff, 0xffffe200
slouken@0
  1437
};
dalton@2698
  1438
slouken@1895
  1439
static void
slouken@1895
  1440
Blit_RGB565_ARGB8888(SDL_BlitInfo * info)
slouken@0
  1441
{
slouken@0
  1442
    Blit_RGB565_32(info, RGB565_ARGB8888_LUT);
slouken@0
  1443
}
slouken@0
  1444
slouken@0
  1445
/* Special optimized blit for RGB 5-6-5 --> ABGR 8-8-8-8 */
slouken@91
  1446
static const Uint32 RGB565_ABGR8888_LUT[512] = {
slouken@1895
  1447
    0xff000000, 0x00000000, 0xff080000, 0x00002000,
slouken@1895
  1448
    0xff100000, 0x00004000, 0xff180000, 0x00006100,
slouken@1895
  1449
    0xff200000, 0x00008100, 0xff290000, 0x0000a100,
slouken@1895
  1450
    0xff310000, 0x0000c200, 0xff390000, 0x0000e200,
slouken@1895
  1451
    0xff410000, 0x00000008, 0xff4a0000, 0x00002008,
slouken@1895
  1452
    0xff520000, 0x00004008, 0xff5a0000, 0x00006108,
slouken@1895
  1453
    0xff620000, 0x00008108, 0xff6a0000, 0x0000a108,
slouken@1895
  1454
    0xff730000, 0x0000c208, 0xff7b0000, 0x0000e208,
slouken@1895
  1455
    0xff830000, 0x00000010, 0xff8b0000, 0x00002010,
slouken@1895
  1456
    0xff940000, 0x00004010, 0xff9c0000, 0x00006110,
slouken@1895
  1457
    0xffa40000, 0x00008110, 0xffac0000, 0x0000a110,
slouken@1895
  1458
    0xffb40000, 0x0000c210, 0xffbd0000, 0x0000e210,
slouken@1895
  1459
    0xffc50000, 0x00000018, 0xffcd0000, 0x00002018,
slouken@1895
  1460
    0xffd50000, 0x00004018, 0xffde0000, 0x00006118,
slouken@1895
  1461
    0xffe60000, 0x00008118, 0xffee0000, 0x0000a118,
slouken@1895
  1462
    0xfff60000, 0x0000c218, 0xffff0000, 0x0000e218,
slouken@1895
  1463
    0xff000400, 0x00000020, 0xff080400, 0x00002020,
slouken@1895
  1464
    0xff100400, 0x00004020, 0xff180400, 0x00006120,
slouken@1895
  1465
    0xff200400, 0x00008120, 0xff290400, 0x0000a120,
slouken@1895
  1466
    0xff310400, 0x0000c220, 0xff390400, 0x0000e220,
slouken@1895
  1467
    0xff410400, 0x00000029, 0xff4a0400, 0x00002029,
slouken@1895
  1468
    0xff520400, 0x00004029, 0xff5a0400, 0x00006129,
slouken@1895
  1469
    0xff620400, 0x00008129, 0xff6a0400, 0x0000a129,
slouken@1895
  1470
    0xff730400, 0x0000c229, 0xff7b0400, 0x0000e229,
slouken@1895
  1471
    0xff830400, 0x00000031, 0xff8b0400, 0x00002031,
slouken@1895
  1472
    0xff940400, 0x00004031, 0xff9c0400, 0x00006131,
slouken@1895
  1473
    0xffa40400, 0x00008131, 0xffac0400, 0x0000a131,
slouken@1895
  1474
    0xffb40400, 0x0000c231, 0xffbd0400, 0x0000e231,
slouken@1895
  1475
    0xffc50400, 0x00000039, 0xffcd0400, 0x00002039,
slouken@1895
  1476
    0xffd50400, 0x00004039, 0xffde0400, 0x00006139,
slouken@1895
  1477
    0xffe60400, 0x00008139, 0xffee0400, 0x0000a139,
slouken@1895
  1478
    0xfff60400, 0x0000c239, 0xffff0400, 0x0000e239,
slouken@1895
  1479
    0xff000800, 0x00000041, 0xff080800, 0x00002041,
slouken@1895
  1480
    0xff100800, 0x00004041, 0xff180800, 0x00006141,
slouken@1895
  1481
    0xff200800, 0x00008141, 0xff290800, 0x0000a141,
slouken@1895
  1482
    0xff310800, 0x0000c241, 0xff390800, 0x0000e241,
slouken@1895
  1483
    0xff410800, 0x0000004a, 0xff4a0800, 0x0000204a,
slouken@1895
  1484
    0xff520800, 0x0000404a, 0xff5a0800, 0x0000614a,
slouken@1895
  1485
    0xff620800, 0x0000814a, 0xff6a0800, 0x0000a14a,
slouken@1895
  1486
    0xff730800, 0x0000c24a, 0xff7b0800, 0x0000e24a,
slouken@1895
  1487
    0xff830800, 0x00000052, 0xff8b0800, 0x00002052,
slouken@1895
  1488
    0xff940800, 0x00004052, 0xff9c0800, 0x00006152,
slouken@1895
  1489
    0xffa40800, 0x00008152, 0xffac0800, 0x0000a152,
slouken@1895
  1490
    0xffb40800, 0x0000c252, 0xffbd0800, 0x0000e252,
slouken@1895
  1491
    0xffc50800, 0x0000005a, 0xffcd0800, 0x0000205a,
slouken@1895
  1492
    0xffd50800, 0x0000405a, 0xffde0800, 0x0000615a,
slouken@1895
  1493
    0xffe60800, 0x0000815a, 0xffee0800, 0x0000a15a,
slouken@1895
  1494
    0xfff60800, 0x0000c25a, 0xffff0800, 0x0000e25a,
slouken@1895
  1495
    0xff000c00, 0x00000062, 0xff080c00, 0x00002062,
slouken@1895
  1496
    0xff100c00, 0x00004062, 0xff180c00, 0x00006162,
slouken@1895
  1497
    0xff200c00, 0x00008162, 0xff290c00, 0x0000a162,
slouken@1895
  1498
    0xff310c00, 0x0000c262, 0xff390c00, 0x0000e262,
slouken@1895
  1499
    0xff410c00, 0x0000006a, 0xff4a0c00, 0x0000206a,
slouken@1895
  1500
    0xff520c00, 0x0000406a, 0xff5a0c00, 0x0000616a,
slouken@1895
  1501
    0xff620c00, 0x0000816a, 0xff6a0c00, 0x0000a16a,
slouken@1895
  1502
    0xff730c00, 0x0000c26a, 0xff7b0c00, 0x0000e26a,
slouken@1895
  1503
    0xff830c00, 0x00000073, 0xff8b0c00, 0x00002073,
slouken@1895
  1504
    0xff940c00, 0x00004073, 0xff9c0c00, 0x00006173,
slouken@1895
  1505
    0xffa40c00, 0x00008173, 0xffac0c00, 0x0000a173,
slouken@1895
  1506
    0xffb40c00, 0x0000c273, 0xffbd0c00, 0x0000e273,
slouken@1895
  1507
    0xffc50c00, 0x0000007b, 0xffcd0c00, 0x0000207b,
slouken@1895
  1508
    0xffd50c00, 0x0000407b, 0xffde0c00, 0x0000617b,
slouken@1895
  1509
    0xffe60c00, 0x0000817b, 0xffee0c00, 0x0000a17b,
slouken@1895
  1510
    0xfff60c00, 0x0000c27b, 0xffff0c00, 0x0000e27b,
slouken@1895
  1511
    0xff001000, 0x00000083, 0xff081000, 0x00002083,
slouken@1895
  1512
    0xff101000, 0x00004083, 0xff181000, 0x00006183,
slouken@1895
  1513
    0xff201000, 0x00008183, 0xff291000, 0x0000a183,
slouken@1895
  1514
    0xff311000, 0x0000c283, 0xff391000, 0x0000e283,
slouken@1895
  1515
    0xff411000, 0x0000008b, 0xff4a1000, 0x0000208b,
slouken@1895
  1516
    0xff521000, 0x0000408b, 0xff5a1000, 0x0000618b,
slouken@1895
  1517
    0xff621000, 0x0000818b, 0xff6a1000, 0x0000a18b,
slouken@1895
  1518
    0xff731000, 0x0000c28b, 0xff7b1000, 0x0000e28b,
slouken@1895
  1519
    0xff831000, 0x00000094, 0xff8b1000, 0x00002094,
slouken@1895
  1520
    0xff941000, 0x00004094, 0xff9c1000, 0x00006194,
slouken@1895
  1521
    0xffa41000, 0x00008194, 0xffac1000, 0x0000a194,
slouken@1895
  1522
    0xffb41000, 0x0000c294, 0xffbd1000, 0x0000e294,
slouken@1895
  1523
    0xffc51000, 0x0000009c, 0xffcd1000, 0x0000209c,
slouken@1895
  1524
    0xffd51000, 0x0000409c, 0xffde1000, 0x0000619c,
slouken@1895
  1525
    0xffe61000, 0x0000819c, 0xffee1000, 0x0000a19c,
slouken@1895
  1526
    0xfff61000, 0x0000c29c, 0xffff1000, 0x0000e29c,
slouken@1895
  1527
    0xff001400, 0x000000a4, 0xff081400, 0x000020a4,
slouken@1895
  1528
    0xff101400, 0x000040a4, 0xff181400, 0x000061a4,
slouken@1895
  1529
    0xff201400, 0x000081a4, 0xff291400, 0x0000a1a4,
slouken@1895
  1530
    0xff311400, 0x0000c2a4, 0xff391400, 0x0000e2a4,
slouken@1895
  1531
    0xff411400, 0x000000ac, 0xff4a1400, 0x000020ac,
slouken@1895
  1532
    0xff521400, 0x000040ac, 0xff5a1400, 0x000061ac,
slouken@1895
  1533
    0xff621400, 0x000081ac, 0xff6a1400, 0x0000a1ac,
slouken@1895
  1534
    0xff731400, 0x0000c2ac, 0xff7b1400, 0x0000e2ac,
slouken@1895
  1535
    0xff831400, 0x000000b4, 0xff8b1400, 0x000020b4,
slouken@1895
  1536
    0xff941400, 0x000040b4, 0xff9c1400, 0x000061b4,
slouken@1895
  1537
    0xffa41400, 0x000081b4, 0xffac1400, 0x0000a1b4,
slouken@1895
  1538
    0xffb41400, 0x0000c2b4, 0xffbd1400, 0x0000e2b4,
slouken@1895
  1539
    0xffc51400, 0x000000bd, 0xffcd1400, 0x000020bd,
slouken@1895
  1540
    0xffd51400, 0x000040bd, 0xffde1400, 0x000061bd,
slouken@1895
  1541
    0xffe61400, 0x000081bd, 0xffee1400, 0x0000a1bd,
slouken@1895
  1542
    0xfff61400, 0x0000c2bd, 0xffff1400, 0x0000e2bd,
slouken@1895
  1543
    0xff001800, 0x000000c5, 0xff081800, 0x000020c5,
slouken@1895
  1544
    0xff101800, 0x000040c5, 0xff181800, 0x000061c5,
slouken@1895
  1545
    0xff201800, 0x000081c5, 0xff291800, 0x0000a1c5,
slouken@1895
  1546
    0xff311800, 0x0000c2c5, 0xff391800, 0x0000e2c5,
slouken@1895
  1547
    0xff411800, 0x000000cd, 0xff4a1800, 0x000020cd,
slouken@1895
  1548
    0xff521800, 0x000040cd, 0xff5a1800, 0x000061cd,
slouken@1895
  1549
    0xff621800, 0x000081cd, 0xff6a1800, 0x0000a1cd,
slouken@1895
  1550
    0xff731800, 0x0000c2cd, 0xff7b1800, 0x0000e2cd,
slouken@1895
  1551
    0xff831800, 0x000000d5, 0xff8b1800, 0x000020d5,
slouken@1895
  1552
    0xff941800, 0x000040d5, 0xff9c1800, 0x000061d5,
slouken@1895
  1553
    0xffa41800, 0x000081d5, 0xffac1800, 0x0000a1d5,
slouken@1895
  1554
    0xffb41800, 0x0000c2d5, 0xffbd1800, 0x0000e2d5,
slouken@1895
  1555
    0xffc51800, 0x000000de, 0xffcd1800, 0x000020de,
slouken@1895
  1556
    0xffd51800, 0x000040de, 0xffde1800, 0x000061de,
slouken@1895
  1557
    0xffe61800, 0x000081de, 0xffee1800, 0x0000a1de,
slouken@1895
  1558
    0xfff61800, 0x0000c2de, 0xffff1800, 0x0000e2de,
slouken@1895
  1559
    0xff001c00, 0x000000e6, 0xff081c00, 0x000020e6,
slouken@1895
  1560
    0xff101c00, 0x000040e6, 0xff181c00, 0x000061e6,
slouken@1895
  1561
    0xff201c00, 0x000081e6, 0xff291c00, 0x0000a1e6,
slouken@1895
  1562
    0xff311c00, 0x0000c2e6, 0xff391c00, 0x0000e2e6,
slouken@1895
  1563
    0xff411c00, 0x000000ee, 0xff4a1c00, 0x000020ee,
slouken@1895
  1564
    0xff521c00, 0x000040ee, 0xff5a1c00, 0x000061ee,
slouken@1895
  1565
    0xff621c00, 0x000081ee, 0xff6a1c00, 0x0000a1ee,
slouken@1895
  1566
    0xff731c00, 0x0000c2ee, 0xff7b1c00, 0x0000e2ee,
slouken@1895
  1567
    0xff831c00, 0x000000f6, 0xff8b1c00, 0x000020f6,
slouken@1895
  1568
    0xff941c00, 0x000040f6, 0xff9c1c00, 0x000061f6,
slouken@1895
  1569
    0xffa41c00, 0x000081f6, 0xffac1c00, 0x0000a1f6,
slouken@1895
  1570
    0xffb41c00, 0x0000c2f6, 0xffbd1c00, 0x0000e2f6,
slouken@1895
  1571
    0xffc51c00, 0x000000ff, 0xffcd1c00, 0x000020ff,
slouken@1895
  1572
    0xffd51c00, 0x000040ff, 0xffde1c00, 0x000061ff,
slouken@1895
  1573
    0xffe61c00, 0x000081ff, 0xffee1c00, 0x0000a1ff,
slouken@1895
  1574
    0xfff61c00, 0x0000c2ff, 0xffff1c00, 0x0000e2ff
slouken@0
  1575
};
dalton@2698
  1576
slouken@1895
  1577
static void
slouken@1895
  1578
Blit_RGB565_ABGR8888(SDL_BlitInfo * info)
slouken@0
  1579
{
slouken@0
  1580
    Blit_RGB565_32(info, RGB565_ABGR8888_LUT);
slouken@0
  1581
}
slouken@0
  1582
slouken@0
  1583
/* Special optimized blit for RGB 5-6-5 --> RGBA 8-8-8-8 */
slouken@91
  1584
static const Uint32 RGB565_RGBA8888_LUT[512] = {
slouken@1895
  1585
    0x000000ff, 0x00000000, 0x000008ff, 0x00200000,
slouken@1895
  1586
    0x000010ff, 0x00400000, 0x000018ff, 0x00610000,
slouken@1895
  1587
    0x000020ff, 0x00810000, 0x000029ff, 0x00a10000,
slouken@1895
  1588
    0x000031ff, 0x00c20000, 0x000039ff, 0x00e20000,
slouken@1895
  1589
    0x000041ff, 0x08000000, 0x00004aff, 0x08200000,
slouken@1895
  1590
    0x000052ff, 0x08400000, 0x00005aff, 0x08610000,
slouken@1895
  1591
    0x000062ff, 0x08810000, 0x00006aff, 0x08a10000,
slouken@1895
  1592
    0x000073ff, 0x08c20000, 0x00007bff, 0x08e20000,
slouken@1895
  1593
    0x000083ff, 0x10000000, 0x00008bff, 0x10200000,
slouken@1895
  1594
    0x000094ff, 0x10400000, 0x00009cff, 0x10610000,
slouken@1895
  1595
    0x0000a4ff, 0x10810000, 0x0000acff, 0x10a10000,
slouken@1895
  1596
    0x0000b4ff, 0x10c20000, 0x0000bdff, 0x10e20000,
slouken@1895
  1597
    0x0000c5ff, 0x18000000, 0x0000cdff, 0x18200000,
slouken@1895
  1598
    0x0000d5ff, 0x18400000, 0x0000deff, 0x18610000,
slouken@1895
  1599
    0x0000e6ff, 0x18810000, 0x0000eeff, 0x18a10000,
slouken@1895
  1600
    0x0000f6ff, 0x18c20000, 0x0000ffff, 0x18e20000,
slouken@1895
  1601
    0x000400ff, 0x20000000, 0x000408ff, 0x20200000,
slouken@1895
  1602
    0x000410ff, 0x20400000, 0x000418ff, 0x20610000,
slouken@1895
  1603
    0x000420ff, 0x20810000, 0x000429ff, 0x20a10000,
slouken@1895
  1604
    0x000431ff, 0x20c20000, 0x000439ff, 0x20e20000,
slouken@1895
  1605
    0x000441ff, 0x29000000, 0x00044aff, 0x29200000,
slouken@1895
  1606
    0x000452ff, 0x29400000, 0x00045aff, 0x29610000,
slouken@1895
  1607
    0x000462ff, 0x29810000, 0x00046aff, 0x29a10000,
slouken@1895
  1608
    0x000473ff, 0x29c20000, 0x00047bff, 0x29e20000,
slouken@1895
  1609
    0x000483ff, 0x31000000, 0x00048bff, 0x31200000,
slouken@1895
  1610
    0x000494ff, 0x31400000, 0x00049cff, 0x31610000,
slouken@1895
  1611
    0x0004a4ff, 0x31810000, 0x0004acff, 0x31a10000,
slouken@1895
  1612
    0x0004b4ff, 0x31c20000, 0x0004bdff, 0x31e20000,
slouken@1895
  1613
    0x0004c5ff, 0x39000000, 0x0004cdff, 0x39200000,
slouken@1895
  1614
    0x0004d5ff, 0x39400000, 0x0004deff, 0x39610000,
slouken@1895
  1615
    0x0004e6ff, 0x39810000, 0x0004eeff, 0x39a10000,
slouken@1895
  1616
    0x0004f6ff, 0x39c20000, 0x0004ffff, 0x39e20000,
slouken@1895
  1617
    0x000800ff, 0x41000000, 0x000808ff, 0x41200000,
slouken@1895
  1618
    0x000810ff, 0x41400000, 0x000818ff, 0x41610000,
slouken@1895
  1619
    0x000820ff, 0x41810000, 0x000829ff, 0x41a10000,
slouken@1895
  1620
    0x000831ff, 0x41c20000, 0x000839ff, 0x41e20000,
slouken@1895
  1621
    0x000841ff, 0x4a000000, 0x00084aff, 0x4a200000,
slouken@1895
  1622
    0x000852ff, 0x4a400000, 0x00085aff, 0x4a610000,
slouken@1895
  1623
    0x000862ff, 0x4a810000, 0x00086aff, 0x4aa10000,
slouken@1895
  1624
    0x000873ff, 0x4ac20000, 0x00087bff, 0x4ae20000,
slouken@1895
  1625
    0x000883ff, 0x52000000, 0x00088bff, 0x52200000,
slouken@1895
  1626
    0x000894ff, 0x52400000, 0x00089cff, 0x52610000,
slouken@1895
  1627
    0x0008a4ff, 0x52810000, 0x0008acff, 0x52a10000,
slouken@1895
  1628
    0x0008b4ff, 0x52c20000, 0x0008bdff, 0x52e20000,
slouken@1895
  1629
    0x0008c5ff, 0x5a000000, 0x0008cdff, 0x5a200000,
slouken@1895
  1630
    0x0008d5ff, 0x5a400000, 0x0008deff, 0x5a610000,
slouken@1895
  1631
    0x0008e6ff, 0x5a810000, 0x0008eeff, 0x5aa10000,
slouken@1895
  1632
    0x0008f6ff, 0x5ac20000, 0x0008ffff, 0x5ae20000,
slouken@1895
  1633
    0x000c00ff, 0x62000000, 0x000c08ff, 0x62200000,
slouken@1895
  1634
    0x000c10ff, 0x62400000, 0x000c18ff, 0x62610000,
slouken@1895
  1635
    0x000c20ff, 0x62810000, 0x000c29ff, 0x62a10000,
slouken@1895
  1636
    0x000c31ff, 0x62c20000, 0x000c39ff, 0x62e20000,
slouken@1895
  1637
    0x000c41ff, 0x6a000000, 0x000c4aff, 0x6a200000,
slouken@1895
  1638
    0x000c52ff, 0x6a400000, 0x000c5aff, 0x6a610000,
slouken@1895
  1639
    0x000c62ff, 0x6a810000, 0x000c6aff, 0x6aa10000,
slouken@1895
  1640
    0x000c73ff, 0x6ac20000, 0x000c7bff, 0x6ae20000,
slouken@1895
  1641
    0x000c83ff, 0x73000000, 0x000c8bff, 0x73200000,
slouken@1895
  1642
    0x000c94ff, 0x73400000, 0x000c9cff, 0x73610000,
slouken@1895
  1643
    0x000ca4ff, 0x73810000, 0x000cacff, 0x73a10000,
slouken@1895
  1644
    0x000cb4ff, 0x73c20000, 0x000cbdff, 0x73e20000,
slouken@1895
  1645
    0x000cc5ff, 0x7b000000, 0x000ccdff, 0x7b200000,
slouken@1895
  1646
    0x000cd5ff, 0x7b400000, 0x000cdeff, 0x7b610000,
slouken@1895
  1647
    0x000ce6ff, 0x7b810000, 0x000ceeff, 0x7ba10000,
slouken@1895
  1648
    0x000cf6ff, 0x7bc20000, 0x000cffff, 0x7be20000,
slouken@1895
  1649
    0x001000ff, 0x83000000, 0x001008ff, 0x83200000,
slouken@1895
  1650
    0x001010ff, 0x83400000, 0x001018ff, 0x83610000,
slouken@1895
  1651
    0x001020ff, 0x83810000, 0x001029ff, 0x83a10000,
slouken@1895
  1652
    0x001031ff, 0x83c20000, 0x001039ff, 0x83e20000,
slouken@1895
  1653
    0x001041ff, 0x8b000000, 0x00104aff, 0x8b200000,
slouken@1895
  1654
    0x001052ff, 0x8b400000, 0x00105aff, 0x8b610000,
slouken@1895
  1655
    0x001062ff, 0x8b810000, 0x00106aff, 0x8ba10000,
slouken@1895
  1656
    0x001073ff, 0x8bc20000, 0x00107bff, 0x8be20000,
slouken@1895
  1657
    0x001083ff, 0x94000000, 0x00108bff, 0x94200000,
slouken@1895
  1658
    0x001094ff, 0x94400000, 0x00109cff, 0x94610000,
slouken@1895
  1659
    0x0010a4ff, 0x94810000, 0x0010acff, 0x94a10000,
slouken@1895
  1660
    0x0010b4ff, 0x94c20000, 0x0010bdff, 0x94e20000,
slouken@1895
  1661
    0x0010c5ff, 0x9c000000, 0x0010cdff, 0x9c200000,
slouken@1895
  1662
    0x0010d5ff, 0x9c400000, 0x0010deff, 0x9c610000,
slouken@1895
  1663
    0x0010e6ff, 0x9c810000, 0x0010eeff, 0x9ca10000,
slouken@1895
  1664
    0x0010f6ff, 0x9cc20000, 0x0010ffff, 0x9ce20000,
slouken@1895
  1665
    0x001400ff, 0xa4000000, 0x001408ff, 0xa4200000,
slouken@1895
  1666
    0x001410ff, 0xa4400000, 0x001418ff, 0xa4610000,
slouken@1895
  1667
    0x001420ff, 0xa4810000, 0x001429ff, 0xa4a10000,
slouken@1895
  1668
    0x001431ff, 0xa4c20000, 0x001439ff, 0xa4e20000,
slouken@1895
  1669
    0x001441ff, 0xac000000, 0x00144aff, 0xac200000,
slouken@1895
  1670
    0x001452ff, 0xac400000, 0x00145aff, 0xac610000,
slouken@1895
  1671
    0x001462ff, 0xac810000, 0x00146aff, 0xaca10000,
slouken@1895
  1672
    0x001473ff, 0xacc20000, 0x00147bff, 0xace20000,
slouken@1895
  1673
    0x001483ff, 0xb4000000, 0x00148bff, 0xb4200000,
slouken@1895
  1674
    0x001494ff, 0xb4400000, 0x00149cff, 0xb4610000,
slouken@1895
  1675
    0x0014a4ff, 0xb4810000, 0x0014acff, 0xb4a10000,
slouken@1895
  1676
    0x0014b4ff, 0xb4c20000, 0x0014bdff, 0xb4e20000,
slouken@1895
  1677
    0x0014c5ff, 0xbd000000, 0x0014cdff, 0xbd200000,
slouken@1895
  1678
    0x0014d5ff, 0xbd400000, 0x0014deff, 0xbd610000,
slouken@1895
  1679
    0x0014e6ff, 0xbd810000, 0x0014eeff, 0xbda10000,
slouken@1895
  1680
    0x0014f6ff, 0xbdc20000, 0x0014ffff, 0xbde20000,
slouken@1895
  1681
    0x001800ff, 0xc5000000, 0x001808ff, 0xc5200000,
slouken@1895
  1682
    0x001810ff, 0xc5400000, 0x001818ff, 0xc5610000,
slouken@1895
  1683
    0x001820ff, 0xc5810000, 0x001829ff, 0xc5a10000,
slouken@1895
  1684
    0x001831ff, 0xc5c20000, 0x001839ff, 0xc5e20000,
slouken@1895
  1685
    0x001841ff, 0xcd000000, 0x00184aff, 0xcd200000,
slouken@1895
  1686
    0x001852ff, 0xcd400000, 0x00185aff, 0xcd610000,
slouken@1895
  1687
    0x001862ff, 0xcd810000, 0x00186aff, 0xcda10000,
slouken@1895
  1688
    0x001873ff, 0xcdc20000, 0x00187bff, 0xcde20000,
slouken@1895
  1689
    0x001883ff, 0xd5000000, 0x00188bff, 0xd5200000,
slouken@1895
  1690
    0x001894ff, 0xd5400000, 0x00189cff, 0xd5610000,
slouken@1895
  1691
    0x0018a4ff, 0xd5810000, 0x0018acff, 0xd5a10000,
slouken@1895
  1692
    0x0018b4ff, 0xd5c20000, 0x0018bdff, 0xd5e20000,
slouken@1895
  1693
    0x0018c5ff, 0xde000000, 0x0018cdff, 0xde200000,
slouken@1895
  1694
    0x0018d5ff, 0xde400000, 0x0018deff, 0xde610000,
slouken@1895
  1695
    0x0018e6ff, 0xde810000, 0x0018eeff, 0xdea10000,
slouken@1895
  1696
    0x0018f6ff, 0xdec20000, 0x0018ffff, 0xdee20000,
slouken@1895
  1697
    0x001c00ff, 0xe6000000, 0x001c08ff, 0xe6200000,
slouken@1895
  1698
    0x001c10ff, 0xe6400000, 0x001c18ff, 0xe6610000,
slouken@1895
  1699
    0x001c20ff, 0xe6810000, 0x001c29ff, 0xe6a10000,
slouken@1895
  1700
    0x001c31ff, 0xe6c20000, 0x001c39ff, 0xe6e20000,
slouken@1895
  1701
    0x001c41ff, 0xee000000, 0x001c4aff, 0xee200000,
slouken@1895
  1702
    0x001c52ff, 0xee400000, 0x001c5aff, 0xee610000,
slouken@1895
  1703
    0x001c62ff, 0xee810000, 0x001c6aff, 0xeea10000,
slouken@1895
  1704
    0x001c73ff, 0xeec20000, 0x001c7bff, 0xeee20000,
slouken@1895
  1705
    0x001c83ff, 0xf6000000, 0x001c8bff, 0xf6200000,
slouken@1895
  1706
    0x001c94ff, 0xf6400000, 0x001c9cff, 0xf6610000,
slouken@1895
  1707
    0x001ca4ff, 0xf6810000, 0x001cacff, 0xf6a10000,
slouken@1895
  1708
    0x001cb4ff, 0xf6c20000, 0x001cbdff, 0xf6e20000,
slouken@1895
  1709
    0x001cc5ff, 0xff000000, 0x001ccdff, 0xff200000,
slouken@1895
  1710
    0x001cd5ff, 0xff400000, 0x001cdeff, 0xff610000,
slouken@1895
  1711
    0x001ce6ff, 0xff810000, 0x001ceeff, 0xffa10000,
slouken@1895
  1712
    0x001cf6ff, 0xffc20000, 0x001cffff, 0xffe20000,
slouken@0
  1713
};
dalton@2698
  1714
slouken@1895
  1715
static void
slouken@1895
  1716
Blit_RGB565_RGBA8888(SDL_BlitInfo * info)
slouken@0
  1717
{
slouken@0
  1718
    Blit_RGB565_32(info, RGB565_RGBA8888_LUT);
slouken@0
  1719
}
slouken@0
  1720
slouken@0
  1721
/* Special optimized blit for RGB 5-6-5 --> BGRA 8-8-8-8 */
slouken@91
  1722
static const Uint32 RGB565_BGRA8888_LUT[512] = {
slouken@1895
  1723
    0x00000000, 0x000000ff, 0x08000000, 0x002000ff,
slouken@1895
  1724
    0x10000000, 0x004000ff, 0x18000000, 0x006100ff,
slouken@1895
  1725
    0x20000000, 0x008100ff, 0x29000000, 0x00a100ff,
slouken@1895
  1726
    0x31000000, 0x00c200ff, 0x39000000, 0x00e200ff,
slouken@1895
  1727
    0x41000000, 0x000008ff, 0x4a000000, 0x002008ff,
slouken@1895
  1728
    0x52000000, 0x004008ff, 0x5a000000, 0x006108ff,
slouken@1895
  1729
    0x62000000, 0x008108ff, 0x6a000000, 0x00a108ff,
slouken@1895
  1730
    0x73000000, 0x00c208ff, 0x7b000000, 0x00e208ff,
slouken@1895
  1731
    0x83000000, 0x000010ff, 0x8b000000, 0x002010ff,
slouken@1895
  1732
    0x94000000, 0x004010ff, 0x9c000000, 0x006110ff,
slouken@1895
  1733
    0xa4000000, 0x008110ff, 0xac000000, 0x00a110ff,
slouken@1895
  1734
    0xb4000000, 0x00c210ff, 0xbd000000, 0x00e210ff,
slouken@1895
  1735
    0xc5000000, 0x000018ff, 0xcd000000, 0x002018ff,
slouken@1895
  1736
    0xd5000000, 0x004018ff, 0xde000000, 0x006118ff,
slouken@1895
  1737
    0xe6000000, 0x008118ff, 0xee000000, 0x00a118ff,
slouken@1895
  1738
    0xf6000000, 0x00c218ff, 0xff000000, 0x00e218ff,
slouken@1895
  1739
    0x00040000, 0x000020ff, 0x08040000, 0x002020ff,
slouken@1895
  1740
    0x10040000, 0x004020ff, 0x18040000, 0x006120ff,
slouken@1895
  1741
    0x20040000, 0x008120ff, 0x29040000, 0x00a120ff,
slouken@1895
  1742
    0x31040000, 0x00c220ff, 0x39040000, 0x00e220ff,
slouken@1895
  1743
    0x41040000, 0x000029ff, 0x4a040000, 0x002029ff,
slouken@1895
  1744
    0x52040000, 0x004029ff, 0x5a040000, 0x006129ff,
slouken@1895
  1745
    0x62040000, 0x008129ff, 0x6a040000, 0x00a129ff,
slouken@1895
  1746
    0x73040000, 0x00c229ff, 0x7b040000, 0x00e229ff,
slouken@1895
  1747
    0x83040000, 0x000031ff, 0x8b040000, 0x002031ff,
slouken@1895
  1748
    0x94040000, 0x004031ff, 0x9c040000, 0x006131ff,
slouken@1895
  1749
    0xa4040000, 0x008131ff, 0xac040000, 0x00a131ff,
slouken@1895
  1750
    0xb4040000, 0x00c231ff, 0xbd040000, 0x00e231ff,
slouken@1895
  1751
    0xc5040000, 0x000039ff, 0xcd040000, 0x002039ff,
slouken@1895
  1752
    0xd5040000, 0x004039ff, 0xde040000, 0x006139ff,
slouken@1895
  1753
    0xe6040000, 0x008139ff, 0xee040000, 0x00a139ff,
slouken@1895
  1754
    0xf6040000, 0x00c239ff, 0xff040000, 0x00e239ff,
slouken@1895
  1755
    0x00080000, 0x000041ff, 0x08080000, 0x002041ff,
slouken@1895
  1756
    0x10080000, 0x004041ff, 0x18080000, 0x006141ff,
slouken@1895
  1757
    0x20080000, 0x008141ff, 0x29080000, 0x00a141ff,
slouken@1895
  1758
    0x31080000, 0x00c241ff, 0x39080000, 0x00e241ff,
slouken@1895
  1759
    0x41080000, 0x00004aff, 0x4a080000, 0x00204aff,
slouken@1895
  1760
    0x52080000, 0x00404aff, 0x5a080000, 0x00614aff,
slouken@1895
  1761
    0x62080000, 0x00814aff, 0x6a080000, 0x00a14aff,
slouken@1895
  1762
    0x73080000, 0x00c24aff, 0x7b080000, 0x00e24aff,
slouken@1895
  1763
    0x83080000, 0x000052ff, 0x8b080000, 0x002052ff,
slouken@1895
  1764
    0x94080000, 0x004052ff, 0x9c080000, 0x006152ff,
slouken@1895
  1765
    0xa4080000, 0x008152ff, 0xac080000, 0x00a152ff,
slouken@1895
  1766
    0xb4080000, 0x00c252ff, 0xbd080000, 0x00e252ff,
slouken@1895
  1767
    0xc5080000, 0x00005aff, 0xcd080000, 0x00205aff,
slouken@1895
  1768
    0xd5080000, 0x00405aff, 0xde080000, 0x00615aff,
slouken@1895
  1769
    0xe6080000, 0x00815aff, 0xee080000, 0x00a15aff,
slouken@1895
  1770
    0xf6080000, 0x00c25aff, 0xff080000, 0x00e25aff,
slouken@1895
  1771
    0x000c0000, 0x000062ff, 0x080c0000, 0x002062ff,
slouken@1895
  1772
    0x100c0000, 0x004062ff, 0x180c0000, 0x006162ff,
slouken@1895
  1773
    0x200c0000, 0x008162ff, 0x290c0000, 0x00a162ff,
slouken@1895
  1774
    0x310c0000, 0x00c262ff, 0x390c0000, 0x00e262ff,
slouken@1895
  1775
    0x410c0000, 0x00006aff, 0x4a0c0000, 0x00206aff,
slouken@1895
  1776
    0x520c0000, 0x00406aff, 0x5a0c0000, 0x00616aff,
slouken@1895
  1777
    0x620c0000, 0x00816aff, 0x6a0c0000, 0x00a16aff,
slouken@1895
  1778
    0x730c0000, 0x00c26aff, 0x7b0c0000, 0x00e26aff,
slouken@1895
  1779
    0x830c0000, 0x000073ff, 0x8b0c0000, 0x002073ff,
slouken@1895
  1780
    0x940c0000, 0x004073ff, 0x9c0c0000, 0x006173ff,
slouken@1895
  1781
    0xa40c0000, 0x008173ff, 0xac0c0000, 0x00a173ff,
slouken@1895
  1782
    0xb40c0000, 0x00c273ff, 0xbd0c0000, 0x00e273ff,
slouken@1895
  1783
    0xc50c0000, 0x00007bff, 0xcd0c0000, 0x00207bff,
slouken@1895
  1784
    0xd50c0000, 0x00407bff, 0xde0c0000, 0x00617bff,
slouken@1895
  1785
    0xe60c0000, 0x00817bff, 0xee0c0000, 0x00a17bff,
slouken@1895
  1786
    0xf60c0000, 0x00c27bff, 0xff0c0000, 0x00e27bff,
slouken@1895
  1787
    0x00100000, 0x000083ff, 0x08100000, 0x002083ff,
slouken@1895
  1788
    0x10100000, 0x004083ff, 0x18100000, 0x006183ff,
slouken@1895
  1789
    0x20100000, 0x008183ff, 0x29100000, 0x00a183ff,
slouken@1895
  1790
    0x31100000, 0x00c283ff, 0x39100000, 0x00e283ff,
slouken@1895
  1791
    0x41100000, 0x00008bff, 0x4a100000, 0x00208bff,
slouken@1895
  1792
    0x52100000, 0x00408bff, 0x5a100000, 0x00618bff,
slouken@1895
  1793
    0x62100000, 0x00818bff, 0x6a100000, 0x00a18bff,
slouken@1895
  1794
    0x73100000, 0x00c28bff, 0x7b100000, 0x00e28bff,
slouken@1895
  1795
    0x83100000, 0x000094ff, 0x8b100000, 0x002094ff,
slouken@1895
  1796
    0x94100000, 0x004094ff, 0x9c100000, 0x006194ff,
slouken@1895
  1797
    0xa4100000, 0x008194ff, 0xac100000, 0x00a194ff,
slouken@1895
  1798
    0xb4100000, 0x00c294ff, 0xbd100000, 0x00e294ff,
slouken@1895
  1799
    0xc5100000, 0x00009cff, 0xcd100000, 0x00209cff,
slouken@1895
  1800
    0xd5100000, 0x00409cff, 0xde100000, 0x00619cff,
slouken@1895
  1801
    0xe6100000, 0x00819cff, 0xee100000, 0x00a19cff,
slouken@1895
  1802
    0xf6100000, 0x00c29cff, 0xff100000, 0x00e29cff,
slouken@1895
  1803
    0x00140000, 0x0000a4ff, 0x08140000, 0x0020a4ff,
slouken@1895
  1804
    0x10140000, 0x0040a4ff, 0x18140000, 0x0061a4ff,
slouken@1895
  1805
    0x20140000, 0x0081a4ff, 0x29140000, 0x00a1a4ff,
slouken@1895
  1806
    0x31140000, 0x00c2a4ff, 0x39140000, 0x00e2a4ff,
slouken@1895
  1807
    0x41140000, 0x0000acff, 0x4a140000, 0x0020acff,
slouken@1895
  1808
    0x52140000, 0x0040acff, 0x5a140000, 0x0061acff,
slouken@1895
  1809
    0x62140000, 0x0081acff, 0x6a140000, 0x00a1acff,
slouken@1895
  1810
    0x73140000, 0x00c2acff, 0x7b140000, 0x00e2acff,
slouken@1895
  1811
    0x83140000, 0x0000b4ff, 0x8b140000, 0x0020b4ff,
slouken@1895
  1812
    0x94140000, 0x0040b4ff, 0x9c140000, 0x0061b4ff,
slouken@1895
  1813
    0xa4140000, 0x0081b4ff, 0xac140000, 0x00a1b4ff,
slouken@1895
  1814
    0xb4140000, 0x00c2b4ff, 0xbd140000, 0x00e2b4ff,
slouken@1895
  1815
    0xc5140000, 0x0000bdff, 0xcd140000, 0x0020bdff,
slouken@1895
  1816
    0xd5140000, 0x0040bdff, 0xde140000, 0x0061bdff,
slouken@1895
  1817
    0xe6140000, 0x0081bdff, 0xee140000, 0x00a1bdff,
slouken@1895
  1818
    0xf6140000, 0x00c2bdff, 0xff140000, 0x00e2bdff,
slouken@1895
  1819
    0x00180000, 0x0000c5ff, 0x08180000, 0x0020c5ff,
slouken@1895
  1820
    0x10180000, 0x0040c5ff, 0x18180000, 0x0061c5ff,
slouken@1895
  1821
    0x20180000, 0x0081c5ff, 0x29180000, 0x00a1c5ff,
slouken@1895
  1822
    0x31180000, 0x00c2c5ff, 0x39180000, 0x00e2c5ff,
slouken@1895
  1823
    0x41180000, 0x0000cdff, 0x4a180000, 0x0020cdff,
slouken@1895
  1824
    0x52180000, 0x0040cdff, 0x5a180000, 0x0061cdff,
slouken@1895
  1825
    0x62180000, 0x0081cdff, 0x6a180000, 0x00a1cdff,
slouken@1895
  1826
    0x73180000, 0x00c2cdff, 0x7b180000, 0x00e2cdff,
slouken@1895
  1827
    0x83180000, 0x0000d5ff, 0x8b180000, 0x0020d5ff,
slouken@1895
  1828
    0x94180000, 0x0040d5ff, 0x9c180000, 0x0061d5ff,
slouken@1895
  1829
    0xa4180000, 0x0081d5ff, 0xac180000, 0x00a1d5ff,
slouken@1895
  1830
    0xb4180000, 0x00c2d5ff, 0xbd180000, 0x00e2d5ff,
slouken@1895
  1831
    0xc5180000, 0x0000deff, 0xcd180000, 0x0020deff,
slouken@1895
  1832
    0xd5180000, 0x0040deff, 0xde180000, 0x0061deff,
slouken@1895
  1833
    0xe6180000, 0x0081deff, 0xee180000, 0x00a1deff,
slouken@1895
  1834
    0xf6180000, 0x00c2deff, 0xff180000, 0x00e2deff,
slouken@1895
  1835
    0x001c0000, 0x0000e6ff, 0x081c0000, 0x0020e6ff,
slouken@1895
  1836
    0x101c0000, 0x0040e6ff, 0x181c0000, 0x0061e6ff,
slouken@1895
  1837
    0x201c0000, 0x0081e6ff, 0x291c0000, 0x00a1e6ff,
slouken@1895
  1838
    0x311c0000, 0x00c2e6ff, 0x391c0000, 0x00e2e6ff,
slouken@1895
  1839
    0x411c0000, 0x0000eeff, 0x4a1c0000, 0x0020eeff,
slouken@1895
  1840
    0x521c0000, 0x0040eeff, 0x5a1c0000, 0x0061eeff,
slouken@1895
  1841
    0x621c0000, 0x0081eeff, 0x6a1c0000, 0x00a1eeff,
slouken@1895
  1842
    0x731c0000, 0x00c2eeff, 0x7b1c0000, 0x00e2eeff,
slouken@1895
  1843
    0x831c0000, 0x0000f6ff, 0x8b1c0000, 0x0020f6ff,
slouken@1895
  1844
    0x941c0000, 0x0040f6ff, 0x9c1c0000, 0x0061f6ff,
slouken@1895
  1845
    0xa41c0000, 0x0081f6ff, 0xac1c0000, 0x00a1f6ff,
slouken@1895
  1846
    0xb41c0000, 0x00c2f6ff, 0xbd1c0000, 0x00e2f6ff,
slouken@1895
  1847
    0xc51c0000, 0x0000ffff, 0xcd1c0000, 0x0020ffff,
slouken@1895
  1848
    0xd51c0000, 0x0040ffff, 0xde1c0000, 0x0061ffff,
slouken@1895
  1849
    0xe61c0000, 0x0081ffff, 0xee1c0000, 0x00a1ffff,
slouken@1895
  1850
    0xf61c0000, 0x00c2ffff, 0xff1c0000, 0x00e2ffff
slouken@0
  1851
};
dalton@2698
  1852
slouken@1895
  1853
static void
slouken@1895
  1854
Blit_RGB565_BGRA8888(SDL_BlitInfo * info)
slouken@0
  1855
{
slouken@0
  1856
    Blit_RGB565_32(info, RGB565_BGRA8888_LUT);
slouken@0
  1857
}
slouken@0
  1858
slouken@0
  1859
/* Special optimized blit for RGB 8-8-8 --> RGB 3-3-2 */
slouken@0
  1860
#ifndef RGB888_RGB332
slouken@0
  1861
#define RGB888_RGB332(dst, src) { \
slouken@0
  1862
	dst = (((src)&0x00E00000)>>16)| \
slouken@0
  1863
	      (((src)&0x0000E000)>>11)| \
slouken@0
  1864
	      (((src)&0x000000C0)>>6); \
slouken@0
  1865
}
slouken@0
  1866
#endif
slouken@1895
  1867
static void
slouken@1895
  1868
Blit_RGB888_index8_map(SDL_BlitInfo * info)
slouken@0
  1869
{
slouken@0
  1870
#ifndef USE_DUFFS_LOOP
slouken@1895
  1871
    int c;
slouken@0
  1872
#endif
slouken@1895
  1873
    int Pixel;
slouken@1895
  1874
    int width, height;
slouken@1895
  1875
    Uint32 *src;
slouken@1895
  1876
    const Uint8 *map;
slouken@1895
  1877
    Uint8 *dst;
slouken@1895
  1878
    int srcskip, dstskip;
slouken@0
  1879
slouken@1895
  1880
    /* Set up some basic variables */
slouken@2262
  1881
    width = info->dst_w;
slouken@2262
  1882
    height = info->dst_h;
slouken@2262
  1883
    src = (Uint32 *) info->src;
slouken@2267
  1884
    srcskip = info->src_skip / 4;
slouken@2262
  1885
    dst = info->dst;
slouken@2267
  1886
    dstskip = info->dst_skip;
slouken@1895
  1887
    map = info->table;
slouken@0
  1888
slouken@0
  1889
#ifdef USE_DUFFS_LOOP
slouken@1895
  1890
    while (height--) {
slouken@1895
  1891
		/* *INDENT-OFF* */
slouken@0
  1892
		DUFFS_LOOP(
icculus@1162
  1893
			RGB888_RGB332(Pixel, *src);
icculus@1162
  1894
			*dst++ = map[Pixel];
slouken@0
  1895
			++src;
slouken@0
  1896
		, width);
slouken@1895
  1897
		/* *INDENT-ON* */
slouken@1895
  1898
        src += srcskip;
slouken@1895
  1899
        dst += dstskip;
slouken@1895
  1900
    }
slouken@0
  1901
#else
slouken@1895
  1902
    while (height--) {
slouken@1895
  1903
        for (c = width / 4; c; --c) {
slouken@1895
  1904
            /* Pack RGB into 8bit pixel */
slouken@1895
  1905
            RGB888_RGB332(Pixel, *src);
slouken@1895
  1906
            *dst++ = map[Pixel];
slouken@1895
  1907
            ++src;
slouken@1895
  1908
            RGB888_RGB332(Pixel, *src);
slouken@1895
  1909
            *dst++ = map[Pixel];
slouken@1895
  1910
            ++src;
slouken@1895
  1911
            RGB888_RGB332(Pixel, *src);
slouken@1895
  1912
            *dst++ = map[Pixel];
slouken@1895
  1913
            ++src;
slouken@1895
  1914
            RGB888_RGB332(Pixel, *src);
slouken@1895
  1915
            *dst++ = map[Pixel];
slouken@1895
  1916
            ++src;
slouken@1895
  1917
        }
slouken@1895
  1918
        switch (width & 3) {
slouken@1895
  1919
        case 3:
slouken@1895
  1920
            RGB888_RGB332(Pixel, *src);
slouken@1895
  1921
            *dst++ = map[Pixel];
slouken@1895
  1922
            ++src;
slouken@1895
  1923
        case 2:
slouken@1895
  1924
            RGB888_RGB332(Pixel, *src);
slouken@1895
  1925
            *dst++ = map[Pixel];
slouken@1895
  1926
            ++src;
slouken@1895
  1927
        case 1:
slouken@1895
  1928
            RGB888_RGB332(Pixel, *src);
slouken@1895
  1929
            *dst++ = map[Pixel];
slouken@1895
  1930
            ++src;
slouken@1895
  1931
        }
slouken@1895
  1932
        src += srcskip;
slouken@1895
  1933
        dst += dstskip;
slouken@1895
  1934
    }
slouken@0
  1935
#endif /* USE_DUFFS_LOOP */
slouken@0
  1936
}
dalton@2698
  1937
slouken@1895
  1938
static void
slouken@1895
  1939
BlitNto1(SDL_BlitInfo * info)
slouken@0
  1940
{
slouken@0
  1941
#ifndef USE_DUFFS_LOOP
slouken@1895
  1942
    int c;
slouken@0
  1943
#endif
slouken@1895
  1944
    int width, height;
slouken@1895
  1945
    Uint8 *src;
slouken@1895
  1946
    const Uint8 *map;
slouken@1895
  1947
    Uint8 *dst;
slouken@1895
  1948
    int srcskip, dstskip;
slouken@1895
  1949
    int srcbpp;
slouken@1895
  1950
    Uint32 Pixel;
slouken@1895
  1951
    int sR, sG, sB;
slouken@1895
  1952
    SDL_PixelFormat *srcfmt;
slouken@0
  1953
slouken@1895
  1954
    /* Set up some basic variables */
slouken@2262
  1955
    width = info->dst_w;
slouken@2262
  1956
    height = info->dst_h;
slouken@2262
  1957
    src = info->src;
slouken@2267
  1958
    srcskip = info->src_skip;
slouken@2262
  1959
    dst = info->dst;
slouken@2267
  1960
    dstskip = info->dst_skip;
slouken@1895
  1961
    map = info->table;
slouken@2267
  1962
    srcfmt = info->src_fmt;
slouken@1895
  1963
    srcbpp = srcfmt->BytesPerPixel;
slouken@0
  1964
slouken@1895
  1965
    if (map == NULL) {
slouken@1895
  1966
        while (height--) {
slouken@0
  1967
#ifdef USE_DUFFS_LOOP
slouken@1895
  1968
			/* *INDENT-OFF* */
slouken@0
  1969
			DUFFS_LOOP(
icculus@1162
  1970
				DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
slouken@0
  1971
								sR, sG, sB);
slouken@0
  1972
				if ( 1 ) {
slouken@0
  1973
				  	/* Pack RGB into 8bit pixel */
slouken@0
  1974
				  	*dst = ((sR>>5)<<(3+2))|
slouken@0
  1975
					        ((sG>>5)<<(2)) |
slouken@0
  1976
					        ((sB>>6)<<(0)) ;
slouken@0
  1977
				}
slouken@0
  1978
				dst++;
slouken@0
  1979
				src += srcbpp;
slouken@0
  1980
			, width);
slouken@1895
  1981
			/* *INDENT-ON* */
slouken@0
  1982
#else
slouken@1895
  1983
            for (c = width; c; --c) {
slouken@1895
  1984
                DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
slouken@1895
  1985
                if (1) {
slouken@1895
  1986
                    /* Pack RGB into 8bit pixel */
slouken@1895
  1987
                    *dst = ((sR >> 5) << (3 + 2)) |
slouken@1895
  1988
                        ((sG >> 5) << (2)) | ((sB >> 6) << (0));
slouken@1895
  1989
                }
slouken@1895
  1990
                dst++;
slouken@1895
  1991
                src += srcbpp;
slouken@1895
  1992
            }
slouken@0
  1993
#endif
slouken@1895
  1994
            src += srcskip;
slouken@1895
  1995
            dst += dstskip;
slouken@1895
  1996
        }
slouken@1895
  1997
    } else {
slouken@1895
  1998
        while (height--) {
slouken@0
  1999
#ifdef USE_DUFFS_LOOP
slouken@1895
  2000
			/* *INDENT-OFF* */
slouken@0
  2001
			DUFFS_LOOP(
icculus@1162
  2002
				DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
slouken@0
  2003
								sR, sG, sB);
slouken@0
  2004
				if ( 1 ) {
slouken@0
  2005
				  	/* Pack RGB into 8bit pixel */
slouken@0
  2006
				  	*dst = map[((sR>>5)<<(3+2))|
slouken@0
  2007
						   ((sG>>5)<<(2))  |
slouken@0
  2008
						   ((sB>>6)<<(0))  ];
slouken@0
  2009
				}
slouken@0
  2010
				dst++;
slouken@0
  2011
				src += srcbpp;
slouken@0
  2012
			, width);
slouken@1895
  2013
			/* *INDENT-ON* */
slouken@0
  2014
#else
slouken@1895
  2015
            for (c = width; c; --c) {
slouken@1895
  2016
                DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
slouken@1895
  2017
                if (1) {
slouken@1895
  2018
                    /* Pack RGB into 8bit pixel */
slouken@1895
  2019
                    *dst = map[((sR >> 5) << (3 + 2)) |
slouken@1895
  2020
                               ((sG >> 5) << (2)) | ((sB >> 6) << (0))];
slouken@1895
  2021
                }
slouken@1895
  2022
                dst++;
slouken@1895
  2023
                src += srcbpp;
slouken@1895
  2024
            }
slouken@0
  2025
#endif /* USE_DUFFS_LOOP */
slouken@1895
  2026
            src += srcskip;
slouken@1895
  2027
            dst += dstskip;
slouken@1895
  2028
        }
slouken@1895
  2029
    }
slouken@0
  2030
}
icculus@1232
  2031
icculus@1232
  2032
/* blits 32 bit RGB<->RGBA with both surfaces having the same R,G,B fields */
slouken@1895
  2033
static void
slouken@1895
  2034
Blit4to4MaskAlpha(SDL_BlitInfo * info)
icculus@1232
  2035
{
slouken@2262
  2036
    int width = info->dst_w;
slouken@2262
  2037
    int height = info->dst_h;
slouken@2262
  2038
    Uint32 *src = (Uint32 *) info->src;
slouken@2267
  2039
    int srcskip = info->src_skip;
slouken@2262
  2040
    Uint32 *dst = (Uint32 *) info->dst;
slouken@2267
  2041
    int dstskip = info->dst_skip;
slouken@2267
  2042
    SDL_PixelFormat *srcfmt = info->src_fmt;
slouken@2267
  2043
    SDL_PixelFormat *dstfmt = info->dst_fmt;
icculus@1232
  2044
slouken@1895
  2045
    if (dstfmt->Amask) {
slouken@1895
  2046
        /* RGB->RGBA, SET_ALPHA */
slouken@2267
  2047
        Uint32 mask = (info->a >> dstfmt->Aloss) << dstfmt->Ashift;
icculus@1232
  2048
slouken@1895
  2049
        while (height--) {
slouken@1895
  2050
			/* *INDENT-OFF* */
icculus@1232
  2051
			DUFFS_LOOP(
icculus@1232
  2052
			{
icculus@1232
  2053
				*dst = *src | mask;
icculus@1232
  2054
				++dst;
icculus@1232
  2055
				++src;
icculus@1232
  2056
			},
icculus@1232
  2057
			width);
slouken@1895
  2058
			/* *INDENT-ON* */
slouken@1895
  2059
            src = (Uint32 *) ((Uint8 *) src + srcskip);
slouken@1895
  2060
            dst = (Uint32 *) ((Uint8 *) dst + dstskip);
slouken@1895
  2061
        }
slouken@1895
  2062
    } else {
slouken@1895
  2063
        /* RGBA->RGB, NO_ALPHA */
slouken@1895
  2064
        Uint32 mask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
icculus@1232
  2065
slouken@1895
  2066
        while (height--) {
slouken@1895
  2067
			/* *INDENT-OFF* */
icculus@1232
  2068
			DUFFS_LOOP(
icculus@1232
  2069
			{
icculus@1232
  2070
				*dst = *src & mask;
icculus@1232
  2071
				++dst;
icculus@1232
  2072
				++src;
icculus@1232
  2073
			},
icculus@1232
  2074
			width);
slouken@1895
  2075
			/* *INDENT-ON* */
slouken@1895
  2076
            src = (Uint32 *) ((Uint8 *) src + srcskip);
slouken@1895
  2077
            dst = (Uint32 *) ((Uint8 *) dst + dstskip);
slouken@1895
  2078
        }
slouken@1895
  2079
    }
icculus@1232
  2080
}
icculus@1232
  2081
slouken@1895
  2082
static void
slouken@1895
  2083
BlitNtoN(SDL_BlitInfo * info)
slouken@0
  2084
{
slouken@2262
  2085
    int width = info->dst_w;
slouken@2262
  2086
    int height = info->dst_h;
slouken@2262
  2087
    Uint8 *src = info->src;
slouken@2267
  2088
    int srcskip = info->src_skip;
slouken@2262
  2089
    Uint8 *dst = info->dst;
slouken@2267
  2090
    int dstskip = info->dst_skip;
slouken@2267
  2091
    SDL_PixelFormat *srcfmt = info->src_fmt;
slouken@1895
  2092
    int srcbpp = srcfmt->BytesPerPixel;
slouken@2267
  2093
    SDL_PixelFormat *dstfmt = info->dst_fmt;
slouken@1895
  2094
    int dstbpp = dstfmt->BytesPerPixel;
slouken@2267
  2095
    unsigned alpha = dstfmt->Amask ? info->a : 0;
slouken@0
  2096
slouken@1895
  2097
    while (height--) {
slouken@1895
  2098
		/* *INDENT-OFF* */
slouken@0
  2099
		DUFFS_LOOP(
slouken@0
  2100
		{
slouken@1985
  2101
            Uint32 Pixel;
slouken@0
  2102
			unsigned sR;
slouken@0
  2103
			unsigned sG;
slouken@0
  2104
			unsigned sB;
icculus@1162
  2105
			DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
slouken@0
  2106
			ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, alpha);
slouken@0
  2107
			dst += dstbpp;
slouken@0
  2108
			src += srcbpp;
slouken@0
  2109
		},
slouken@0
  2110
		width);
slouken@1895
  2111
		/* *INDENT-ON* */
slouken@1895
  2112
        src += srcskip;
slouken@1895
  2113
        dst += dstskip;
slouken@1895
  2114
    }
slouken@0
  2115
}
slouken@0
  2116
slouken@1895
  2117
static void
slouken@1895
  2118
BlitNtoNCopyAlpha(SDL_BlitInfo * info)
slouken@0
  2119
{
slouken@2262
  2120
    int width = info->dst_w;
slouken@2262
  2121
    int height = info->dst_h;
slouken@2262
  2122
    Uint8 *src = info->src;
slouken@2267
  2123
    int srcskip = info->src_skip;
slouken@2262
  2124
    Uint8 *dst = info->dst;
slouken@2267
  2125
    int dstskip = info->dst_skip;
slouken@2267
  2126
    SDL_PixelFormat *srcfmt = info->src_fmt;
slouken@1895
  2127
    int srcbpp = srcfmt->BytesPerPixel;
slouken@2267
  2128
    SDL_PixelFormat *dstfmt = info->dst_fmt;
slouken@1895
  2129
    int dstbpp = dstfmt->BytesPerPixel;
slouken@1895
  2130
    int c;
slouken@0
  2131
slouken@1895
  2132
    /* FIXME: should map alpha to [0..255] correctly! */
slouken@1895
  2133
    while (height--) {
slouken@1895
  2134
        for (c = width; c; --c) {
slouken@1895
  2135
            Uint32 Pixel;
slouken@1895
  2136
            unsigned sR, sG, sB, sA;
slouken@1895
  2137
            DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA);
slouken@1895
  2138
            ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, sA);
slouken@1895
  2139
            dst += dstbpp;
slouken@1895
  2140
            src += srcbpp;
slouken@1895
  2141
        }
slouken@1895
  2142
        src += srcskip;
slouken@1895
  2143
        dst += dstskip;
slouken@1895
  2144
    }
slouken@0
  2145
}
slouken@0
  2146
slouken@1895
  2147
static void
slouken@1895
  2148
BlitNto1Key(SDL_BlitInfo * info)
slouken@0
  2149
{
slouken@2262
  2150
    int width = info->dst_w;
slouken@2262
  2151
    int height = info->dst_h;
slouken@2262
  2152
    Uint8 *src = info->src;
slouken@2267
  2153
    int srcskip = info->src_skip;
slouken@2262
  2154
    Uint8 *dst = info->dst;
slouken@2267
  2155
    int dstskip = info->dst_skip;
slouken@2267
  2156
    SDL_PixelFormat *srcfmt = info->src_fmt;
slouken@1895
  2157
    const Uint8 *palmap = info->table;
slouken@2267
  2158
    Uint32 ckey = info->colorkey;
slouken@1895
  2159
    Uint32 rgbmask = ~srcfmt->Amask;
slouken@1895
  2160
    int srcbpp;
slouken@1895
  2161
    Uint32 Pixel;
slouken@1895
  2162
    unsigned sR, sG, sB;
slouken@0
  2163
slouken@1895
  2164
    /* Set up some basic variables */
slouken@1895
  2165
    srcbpp = srcfmt->BytesPerPixel;
slouken@1895
  2166
    ckey &= rgbmask;
slouken@0
  2167
slouken@1895
  2168
    if (palmap == NULL) {
slouken@1895
  2169
        while (height--) {
slouken@1895
  2170
			/* *INDENT-OFF* */
slouken@0
  2171
			DUFFS_LOOP(
slouken@0
  2172
			{
icculus@1162
  2173
				DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
slouken@0
  2174
								sR, sG, sB);
icculus@1162
  2175
				if ( (Pixel & rgbmask) != ckey ) {
slouken@0
  2176
				  	/* Pack RGB into 8bit pixel */
slouken@1428
  2177
				  	*dst = (Uint8)(((sR>>5)<<(3+2))|
slouken@1428
  2178
						           ((sG>>5)<<(2)) |
slouken@1428
  2179
						           ((sB>>6)<<(0)));
slouken@0
  2180
				}
slouken@0
  2181
				dst++;
slouken@0
  2182
				src += srcbpp;
slouken@0
  2183
			},
slouken@0
  2184
			width);
slouken@1895
  2185
			/* *INDENT-ON* */
slouken@1895
  2186
            src += srcskip;
slouken@1895
  2187
            dst += dstskip;
slouken@1895
  2188
        }
slouken@1895
  2189
    } else {
slouken@1895
  2190
        while (height--) {
slouken@1895
  2191
			/* *INDENT-OFF* */
slouken@0
  2192
			DUFFS_LOOP(
slouken@0
  2193
			{
icculus@1162
  2194
				DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
slouken@0
  2195
								sR, sG, sB);
icculus@1162
  2196
				if ( (Pixel & rgbmask) != ckey ) {
slouken@0
  2197
				  	/* Pack RGB into 8bit pixel */
slouken@1428
  2198
				  	*dst = (Uint8)palmap[((sR>>5)<<(3+2))|
slouken@1428
  2199
							             ((sG>>5)<<(2))  |
slouken@1428
  2200
							             ((sB>>6)<<(0))  ];
slouken@0
  2201
				}
slouken@0
  2202
				dst++;
slouken@0
  2203
				src += srcbpp;
slouken@0
  2204
			},
slouken@0
  2205
			width);
slouken@1895
  2206
			/* *INDENT-ON* */
slouken@1895
  2207
            src += srcskip;
slouken@1895
  2208
            dst += dstskip;
slouken@1895
  2209
        }
slouken@1895
  2210
    }
slouken@0
  2211
}
slouken@0
  2212
slouken@1895
  2213
static void
slouken@1895
  2214
Blit2to2Key(SDL_BlitInfo * info)
slouken@0
  2215
{
slouken@2262
  2216
    int width = info->dst_w;
slouken@2262
  2217
    int height = info->dst_h;
slouken@2262
  2218
    Uint16 *srcp = (Uint16 *) info->src;
slouken@2267
  2219
    int srcskip = info->src_skip;
slouken@2262
  2220
    Uint16 *dstp = (Uint16 *) info->dst;
slouken@2267
  2221
    int dstskip = info->dst_skip;
slouken@2267
  2222
    Uint32 ckey = info->colorkey;
slouken@2267
  2223
    Uint32 rgbmask = ~info->src_fmt->Amask;
slouken@0
  2224
slouken@1895
  2225
    /* Set up some basic variables */
slouken@1895
  2226
    srcskip /= 2;
slouken@1895
  2227
    dstskip /= 2;
slouken@1895
  2228
    ckey &= rgbmask;
slouken@0
  2229
slouken@1895
  2230
    while (height--) {
slouken@1895
  2231
		/* *INDENT-OFF* */
slouken@0
  2232
		DUFFS_LOOP(
slouken@0
  2233
		{
slouken@0
  2234
			if ( (*srcp & rgbmask) != ckey ) {
slouken@0
  2235
				*dstp = *srcp;
slouken@0
  2236
			}
slouken@0
  2237
			dstp++;
slouken@0
  2238
			srcp++;
slouken@0
  2239
		},
slouken@0
  2240
		width);
slouken@1895
  2241
		/* *INDENT-ON* */
slouken@1895
  2242
        srcp += srcskip;
slouken@1895
  2243
        dstp += dstskip;
slouken@1895
  2244
    }
slouken@0
  2245
}
slouken@0
  2246
slouken@1895
  2247
static void
slouken@1895
  2248
BlitNtoNKey(SDL_BlitInfo * info)
slouken@0
  2249
{
slouken@2262
  2250
    int width = info->dst_w;
slouken@2262
  2251
    int height = info->dst_h;
slouken@2262
  2252
    Uint8 *src = info->src;
slouken@2267
  2253
    int srcskip = info->src_skip;
slouken@2262
  2254
    Uint8 *dst = info->dst;
slouken@2267
  2255
    int dstskip = info->dst_skip;
slouken@2267
  2256
    Uint32 ckey = info->colorkey;
slouken@2267
  2257
    SDL_PixelFormat *srcfmt = info->src_fmt;
slouken@2267
  2258
    SDL_PixelFormat *dstfmt = info->dst_fmt;
slouken@1895
  2259
    int srcbpp = srcfmt->BytesPerPixel;
slouken@1895
  2260
    int dstbpp = dstfmt->BytesPerPixel;
slouken@2267
  2261
    unsigned alpha = dstfmt->Amask ? info->a : 0;
slouken@1895
  2262
    Uint32 rgbmask = ~srcfmt->Amask;
slouken@1543
  2263
slouken@1895
  2264
    /* Set up some basic variables */
slouken@1895
  2265
    ckey &= rgbmask;
slouken@0
  2266
slouken@1895
  2267
    while (height--) {
slouken@1895
  2268
		/* *INDENT-OFF* */
slouken@0
  2269
		DUFFS_LOOP(
slouken@0
  2270
		{
slouken@1985
  2271
            Uint32 Pixel;
slouken@0
  2272
			unsigned sR;
slouken@0
  2273
			unsigned sG;
slouken@0
  2274
			unsigned sB;
icculus@1162
  2275
			RETRIEVE_RGB_PIXEL(src, srcbpp, Pixel);
slouken@1543
  2276
			if ( (Pixel & rgbmask) != ckey ) {
slouken@1985
  2277
                RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB);
slouken@1985
  2278
				ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, alpha);
slouken@0
  2279
			}
slouken@0
  2280
			dst += dstbpp;
slouken@0
  2281
			src += srcbpp;
slouken@0
  2282
		},
slouken@0
  2283
		width);
slouken@1895
  2284
		/* *INDENT-ON* */
slouken@1895
  2285
        src += srcskip;
slouken@1895
  2286
        dst += dstskip;
slouken@1895
  2287
    }
slouken@0
  2288
}
slouken@0
  2289
slouken@1895
  2290
static void
slouken@1895
  2291
BlitNtoNKeyCopyAlpha(SDL_BlitInfo * info)
slouken@0
  2292
{
slouken@2262
  2293
    int width = info->dst_w;
slouken@2262
  2294
    int height = info->dst_h;
slouken@2262
  2295
    Uint8 *src = info->src;
slouken@2267
  2296
    int srcskip = info->src_skip;
slouken@2262
  2297
    Uint8 *dst = info->dst;
slouken@2267
  2298
    int dstskip = info->dst_skip;
slouken@2267
  2299
    Uint32 ckey = info->colorkey;
slouken@2267
  2300
    SDL_PixelFormat *srcfmt = info->src_fmt;
slouken@2267
  2301
    SDL_PixelFormat *dstfmt = info->dst_fmt;
slouken@1895
  2302
    Uint32 rgbmask = ~srcfmt->Amask;
slouken@0
  2303
slouken@1895
  2304
    Uint8 srcbpp;
slouken@1895
  2305
    Uint8 dstbpp;
slouken@1895
  2306
    Uint32 Pixel;
slouken@1895
  2307
    unsigned sR, sG, sB, sA;
slouken@0
  2308
slouken@1895
  2309
    /* Set up some basic variables */
slouken@1895
  2310
    srcbpp = srcfmt->BytesPerPixel;
slouken@1895
  2311
    dstbpp = dstfmt->BytesPerPixel;
slouken@1895
  2312
    ckey &= rgbmask;
slouken@0
  2313
slouken@1895
  2314
    /* FIXME: should map alpha to [0..255] correctly! */
slouken@1895
  2315
    while (height--) {
slouken@1895
  2316
		/* *INDENT-OFF* */
slouken@0
  2317
		DUFFS_LOOP(
slouken@0
  2318
		{
slouken@1985
  2319
			DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA);
icculus@1162
  2320
			if ( (Pixel & rgbmask) != ckey ) {
slouken@1985
  2321
				  ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, sA);
slouken@0
  2322
			}
slouken@0
  2323
			dst += dstbpp;
slouken@0
  2324
			src += srcbpp;
slouken@0
  2325
		},
slouken@0
  2326
		width);
slouken@1895
  2327
		/* *INDENT-ON* */
slouken@1895
  2328
        src += srcskip;
slouken@1895
  2329
        dst += dstskip;
slouken@1895
  2330
    }
slouken@0
  2331
}
slouken@0
  2332
slouken@0
  2333
/* Normal N to N optimized blitters */
slouken@1895
  2334
struct blit_table
slouken@1895
  2335
{
slouken@1895
  2336
    Uint32 srcR, srcG, srcB;
slouken@1895
  2337
    int dstbpp;
slouken@1895
  2338
    Uint32 dstR, dstG, dstB;
slouken@1895
  2339
    Uint32 blit_features;
slouken@2267
  2340
    SDL_BlitFunc blitfunc;
slouken@1895
  2341
    enum
slouken@1895
  2342
    { NO_ALPHA = 1, SET_ALPHA = 2, COPY_ALPHA = 4 } alpha;
slouken@0
  2343
};
slouken@91
  2344
static const struct blit_table normal_blit_1[] = {
slouken@1895
  2345
    /* Default for 8-bit RGB source, an invalid combination */
slouken@2257
  2346
    {0, 0, 0, 0, 0, 0, 0, 0, NULL},
slouken@0
  2347
};
dalton@2698
  2348
slouken@91
  2349
static const struct blit_table normal_blit_2[] = {
slouken@2247
  2350
#if SDL_ALTIVEC_BLITTERS
icculus@1047
  2351
    /* has-altivec */
slouken@1895
  2352
    {0x0000F800, 0x000007E0, 0x0000001F, 4, 0x00000000, 0x00000000,
slouken@1895
  2353
     0x00000000,
slouken@2257
  2354
     2, Blit_RGB565_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA},
slouken@1895
  2355
    {0x00007C00, 0x000003E0, 0x0000001F, 4, 0x00000000, 0x00000000,
slouken@1895
  2356
     0x00000000,
slouken@2257
  2357
     2, Blit_RGB555_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA},
icculus@1047
  2358
#endif
slouken@1895
  2359
    {0x0000F800, 0x000007E0, 0x0000001F, 4, 0x00FF0000, 0x0000FF00,
slouken@1895
  2360
     0x000000FF,
slouken@2257
  2361
     0, Blit_RGB565_ARGB8888, SET_ALPHA},
slouken@1895
  2362
    {0x0000F800, 0x000007E0, 0x0000001F, 4, 0x000000FF, 0x0000FF00,
slouken@1895
  2363
     0x00FF0000,
slouken@2257
  2364
     0, Blit_RGB565_ABGR8888, SET_ALPHA},
slouken@1895
  2365
    {0x0000F800, 0x000007E0, 0x0000001F, 4, 0xFF000000, 0x00FF0000,
slouken@1895
  2366
     0x0000FF00,
slouken@2257
  2367
     0, Blit_RGB565_RGBA8888, SET_ALPHA},
slouken@1895
  2368
    {0x0000F800, 0x000007E0, 0x0000001F, 4, 0x0000FF00, 0x00FF0000,
slouken@1895
  2369
     0xFF000000,
slouken@2257
  2370
     0, Blit_RGB565_BGRA8888, SET_ALPHA},
slouken@0
  2371
slouken@0
  2372
    /* Default for 16-bit RGB source, used if no other blitter matches */
slouken@2257
  2373
    {0, 0, 0, 0, 0, 0, 0, 0, BlitNtoN, 0}
slouken@0
  2374
};
dalton@2698
  2375
slouken@91
  2376
static const struct blit_table normal_blit_3[] = {
slouken@1895
  2377
    /* Default for 24-bit RGB source, never optimized */
slouken@2257
  2378
    {0, 0, 0, 0, 0, 0, 0, 0, BlitNtoN, 0}
slouken@0
  2379
};
dalton@2698
  2380
slouken@91
  2381
static const struct blit_table normal_blit_4[] = {
slouken@1361
  2382
#if SDL_ALTIVEC_BLITTERS
icculus@1047
  2383
    /* has-altivec | dont-use-prefetch */
slouken@1895
  2384
    {0x00000000, 0x00000000, 0x00000000, 4, 0x00000000, 0x00000000,
slouken@1895
  2385
     0x00000000,
slouken@2257
  2386
     6, ConvertAltivec32to32_noprefetch,
slouken@1895
  2387
     NO_ALPHA | COPY_ALPHA | SET_ALPHA},
icculus@1047
  2388
    /* has-altivec */
slouken@1895
  2389
    {0x00000000, 0x00000000, 0x00000000, 4, 0x00000000, 0x00000000,
slouken@1895
  2390
     0x00000000,
slouken@2257
  2391
     2, ConvertAltivec32to32_prefetch,
slouken@1895
  2392
     NO_ALPHA | COPY_ALPHA | SET_ALPHA},
icculus@1047
  2393
    /* has-altivec */
slouken@1895
  2394
    {0x00000000, 0x00000000, 0x00000000, 2, 0x0000F800, 0x000007E0,
slouken@1895
  2395
     0x0000001F,
slouken@2257
  2396
     2, Blit_RGB888_RGB565Altivec, NO_ALPHA},
icculus@1047
  2397
#endif
slouken@1895
  2398
    {0x00FF0000, 0x0000FF00, 0x000000FF, 2, 0x0000F800, 0x000007E0,
slouken@1895
  2399
     0x0000001F,
slouken@2257
  2400
     0, Blit_RGB888_RGB565, NO_ALPHA},
slouken@1895
  2401
    {0x00FF0000, 0x0000FF00, 0x000000FF, 2, 0x00007C00, 0x000003E0,
slouken@1895
  2402
     0x0000001F,
slouken@2257
  2403
     0, Blit_RGB888_RGB555, NO_ALPHA},
slouken@1895
  2404
    /* Default for 32-bit RGB source, used if no other blitter matches */
slouken@2257
  2405
    {0, 0, 0, 0, 0, 0, 0, 0, BlitNtoN, 0}
slouken@0
  2406
};
dalton@2698
  2407
slouken@91
  2408
static const struct blit_table *normal_blit[] = {
slouken@1895
  2409
    normal_blit_1, normal_blit_2, normal_blit_3, normal_blit_4
slouken@0
  2410
};
slouken@0
  2411
icculus@1047
  2412
/* Mask matches table, or table entry is zero */
icculus@1047
  2413
#define MASKOK(x, y) (((x) == (y)) || ((y) == 0x00000000))
icculus@1047
  2414
slouken@2267
  2415
SDL_BlitFunc
slouken@2267
  2416
SDL_CalculateBlitN(SDL_Surface * surface)
slouken@0
  2417
{
slouken@1895
  2418
    SDL_PixelFormat *srcfmt;
slouken@1895
  2419
    SDL_PixelFormat *dstfmt;
slouken@1895
  2420
    const struct blit_table *table;
slouken@1895
  2421
    int which;
slouken@2267
  2422
    SDL_BlitFunc blitfun;
slouken@0
  2423
slouken@1895
  2424
    /* Set up data for choosing the blit */
slouken@1895
  2425
    srcfmt = surface->format;
slouken@1895
  2426
    dstfmt = surface->map->dst->format;
slouken@0
  2427
slouken@1895
  2428
    /* We don't support destinations less than 8-bits */
slouken@1895
  2429
    if (dstfmt->BitsPerPixel < 8) {
slouken@1895
  2430
        return (NULL);
slouken@1895
  2431
    }
slouken@0
  2432
slouken@2267
  2433
    switch (surface->map->info.flags) {
slouken@2267
  2434
    case 0:
slouken@2267
  2435
        blitfun = NULL;
slouken@2267
  2436
        if (dstfmt->BitsPerPixel == 8) {
slouken@2267
  2437
            /* We assume 8-bit destinations are palettized */
slouken@2267
  2438
            if ((srcfmt->BytesPerPixel == 4) &&
slouken@2267
  2439
                (srcfmt->Rmask == 0x00FF0000) &&
slouken@2267
  2440
                (srcfmt->Gmask == 0x0000FF00) &&
slouken@2267
  2441
                (srcfmt->Bmask == 0x000000FF)) {
slouken@2267
  2442
                if (surface->map->info.table) {
slouken@2267
  2443
                    blitfun = Blit_RGB888_index8_map;
slouken@2267
  2444
                } else {
slouken@2267
  2445
                    blitfun = Blit_RGB888_index8;
slouken@2267
  2446
                }
slouken@2267
  2447
            } else {
slouken@2267
  2448
                blitfun = BlitNto1;
slouken@2267
  2449
            }
slouken@2267
  2450
        } else {
slouken@2267
  2451
            /* Now the meat, choose the blitter we want */
slouken@2267
  2452
            int a_need = NO_ALPHA;
slouken@2267
  2453
            if (dstfmt->Amask)
slouken@2267
  2454
                a_need = srcfmt->Amask ? COPY_ALPHA : SET_ALPHA;
slouken@2267
  2455
            table = normal_blit[srcfmt->BytesPerPixel - 1];
slouken@2267
  2456
            for (which = 0; table[which].dstbpp; ++which) {
slouken@2267
  2457
                if (MASKOK(srcfmt->Rmask, table[which].srcR) &&
slouken@2267
  2458
                    MASKOK(srcfmt->Gmask, table[which].srcG) &&
slouken@2267
  2459
                    MASKOK(srcfmt->Bmask, table[which].srcB) &&
slouken@2267
  2460
                    MASKOK(dstfmt->Rmask, table[which].dstR) &&
slouken@2267
  2461
                    MASKOK(dstfmt->Gmask, table[which].dstG) &&
slouken@2267
  2462
                    MASKOK(dstfmt->Bmask, table[which].dstB) &&
slouken@2267
  2463
                    dstfmt->BytesPerPixel == table[which].dstbpp &&
slouken@2267
  2464
                    (a_need & table[which].alpha) == a_need &&
slouken@2267
  2465
                    ((table[which].blit_features & GetBlitFeatures()) ==
slouken@2267
  2466
                     table[which].blit_features))
slouken@2267
  2467
                    break;
slouken@2267
  2468
            }
slouken@2267
  2469
            blitfun = table[which].blitfunc;
slouken@2267
  2470
slouken@2267
  2471
            if (blitfun == BlitNtoN) {  /* default C fallback catch-all. Slow! */
slouken@2267
  2472
                /* Fastpath C fallback: 32bit RGB<->RGBA blit with matching RGB */
slouken@2267
  2473
                if (srcfmt->BytesPerPixel == 4 && dstfmt->BytesPerPixel == 4
slouken@2267
  2474
                    && srcfmt->Rmask == dstfmt->Rmask
slouken@2267
  2475
                    && srcfmt->Gmask == dstfmt->Gmask
slouken@2267
  2476
                    && srcfmt->Bmask == dstfmt->Bmask) {
slouken@2267
  2477
                    blitfun = Blit4to4MaskAlpha;
slouken@2267
  2478
                } else if (a_need == COPY_ALPHA) {
slouken@2267
  2479
                    blitfun = BlitNtoNCopyAlpha;
slouken@2267
  2480
                }
slouken@2267
  2481
            }
slouken@2267
  2482
        }
slouken@2267
  2483
        return (blitfun);
slouken@2267
  2484
slouken@2267
  2485
    case SDL_COPY_COLORKEY:
slouken@1895
  2486
        /* colorkey blit: Here we don't have too many options, mostly
slouken@1895
  2487
           because RLE is the preferred fast way to deal with this.
slouken@1895
  2488
           If a particular case turns out to be useful we'll add it. */
slouken@1895
  2489
slouken@1895
  2490
        if (srcfmt->BytesPerPixel == 2 && surface->map->identity)
slouken@1895
  2491
            return Blit2to2Key;
slouken@1895
  2492
        else if (dstfmt->BytesPerPixel == 1)
slouken@1895
  2493
            return BlitNto1Key;
slouken@1895
  2494
        else {
slouken@1361
  2495
#if SDL_ALTIVEC_BLITTERS
slouken@1895
  2496
            if ((srcfmt->BytesPerPixel == 4) && (dstfmt->BytesPerPixel == 4)
slouken@1895
  2497
                && SDL_HasAltiVec()) {
slouken@1895
  2498
                return Blit32to32KeyAltivec;
slouken@1895
  2499
            } else
icculus@1047
  2500
#endif
slouken@2267
  2501
            if (srcfmt->Amask && dstfmt->Amask) {
slouken@1895
  2502
                return BlitNtoNKeyCopyAlpha;
slouken@2267
  2503
            } else {
slouken@1895
  2504
                return BlitNtoNKey;
slouken@1895
  2505
            }
slouken@1895
  2506
        }
slouken@1895
  2507
    }
slouken@0
  2508
slouken@2267
  2509
    return NULL;
slouken@0
  2510
}
slouken@1895
  2511
slouken@1895
  2512
/* vi: set ts=4 sw=4 expandtab: */