/
SDL_cgxaccel.c
237 lines (198 loc) · 5.5 KB
/
SDL_cgxaccel.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
#include "SDL_error.h"
#include "SDL_endian.h"
#include "SDL_sysvideo.h"
#include "SDL_blit.h"
#include "SDL_video.h"
#include "SDL_cgxvideo.h"
static int CGX_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
SDL_Surface *dst, SDL_Rect *dstrect);
// These are needed to avoid register troubles with gcc -O2!
#if defined(__SASC) || defined(__PPC__)
#define BMKBRP(a,b,c,d,e,f,g,h,i,j) BltMaskBitMapRastPort(a,b,c,d,e,f,g,h,i,j)
#define BBRP(a,b,c,d,e,f,g,h,i) BltBitMapRastPort(a,b,c,d,e,f,g,h,i)
#define BBB(a,b,c,d,e,f,g,h,i,j,k) BltBitMap(a,b,c,d,e,f,g,h,i,j,k)
#else
void BMKBRP(struct BitMap *a,WORD b, WORD c,struct RastPort *d,WORD e,WORD f,WORD g,WORD h,UBYTE i,APTR j)
{BltMaskBitMapRastPort(a,b,c,d,e,f,g,h,i,j);}
void BBRP(struct BitMap *a,WORD b, WORD c,struct RastPort *d,WORD e,WORD f,WORD g,WORD h,UBYTE i)
{BltBitMapRastPort(a,b,c,d,e,f,g,h,i);}
void BBB(struct BitMap *a,WORD b, WORD c,struct BitMap *d,WORD e,WORD f,WORD g,WORD h,UBYTE i,UBYTE j,UWORD *k)
{BltBitMap(a,b,c,d,e,f,g,h,i,j,k);}
#endif
int CGX_SetHWColorKey(_THIS,SDL_Surface *surface, Uint32 key)
{
if(surface->hwdata)
{
if(surface->hwdata->mask)
free(surface->hwdata->mask);
if(surface->hwdata->mask=malloc(RASSIZE(surface->w,surface->h)))
{
Uint32 pitch,ok=0;
APTR lock;
memset(surface->hwdata->mask,255,RASSIZE(surface->w,surface->h));
D(bug("Costruisco colorkey: colore: %ld, size: %ld x %ld, %ld bytes...Bpp:%ld\n",key,surface->w,surface->h,RASSIZE(surface->w,surface->h),surface->format->BytesPerPixel));
if(lock=LockBitMapTags(surface->hwdata->bmap,LBMI_BASEADDRESS,(ULONG)&surface->pixels,
LBMI_BYTESPERROW,(ULONG)&pitch,TAG_DONE))
{
switch(surface->format->BytesPerPixel)
{
case 1:
{
unsigned char k=key;
register int i,j,t;
register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels;
pitch-=surface->w;
for(i=0;i<surface->h;i++)
{
for(t=128,j=0;j<surface->w;j++)
{
if(*map==k)
*dest&=~t;
t>>=1;
if(t==0)
{
dest++;
t=128;
}
map++;
}
map+=pitch;
}
}
break;
case 2:
{
Uint16 k=key,*mapw;
register int i,j,t;
register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels;
for(i=surface->h;i;--i)
{
mapw=(Uint16 *)map;
for(t=128,j=surface->w;j;--j)
{
if(*mapw==k)
*dest&=~t;
t>>=1;
if(t==0)
{
dest++;
t=128;
}
mapw++;
}
map+=pitch;
}
}
break;
case 4:
{
Uint32 *mapl;
register int i,j,t;
register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels;
for(i=surface->h;i;--i)
{
mapl=(Uint32 *)map;
for(t=128,j=surface->w;j;--j)
{
if(*mapl==key)
*dest&=~t;
t>>=1;
if(t==0)
{
dest++;
t=128;
}
mapl++;
}
map+=pitch;
}
}
break;
default:
D(bug("Pixel mode non supported for color key..."));
free(surface->hwdata->mask);
surface->hwdata->mask=NULL;
ok=-1;
}
UnLockBitMap(lock);
D(bug("...Colorkey costruito!\n"));
return ok;
}
}
}
D(bug("HW colorkey not supported for this depth\n"));
return -1;
}
int CGX_CheckHWBlit(_THIS,SDL_Surface *src,SDL_Surface *dst)
{
// Doesn't support yet alpha blitting
if(src->hwdata&& !(src->flags & (SDL_SRCALPHA)))
{
D(bug("CheckHW blit... OK!\n"));
if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) {
if ( CGX_SetHWColorKey(this, src, src->format->colorkey) < 0 ) {
src->flags &= ~SDL_HWACCEL;
return -1;
}
}
src->flags|=SDL_HWACCEL;
src->map->hw_blit = CGX_HWAccelBlit;
return 1;
}
else
src->flags &= ~SDL_HWACCEL;
D(bug("CheckHW blit... NO!\n"));
return 0;
}
static int temprp_init=0;
static struct RastPort temprp;
static int CGX_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect,
SDL_Surface *dst, SDL_Rect *dstrect)
{
struct SDL_VideoDevice *this=src->hwdata->videodata;
// D(bug("Accel blit!\n"));
if(src->flags&SDL_SRCCOLORKEY && src->hwdata->mask)
{
if(dst==SDL_VideoSurface)
{
BMKBRP(src->hwdata->bmap,srcrect->x,srcrect->y,
SDL_RastPort,dstrect->x+SDL_Window->BorderLeft,dstrect->y+SDL_Window->BorderTop,
srcrect->w,srcrect->h,0xc0,src->hwdata->mask);
}
else if(dst->hwdata)
{
if(!temprp_init)
{
InitRastPort(&temprp);
temprp_init=1;
}
temprp.BitMap=(struct BitMap *)dst->hwdata->bmap;
BMKBRP(src->hwdata->bmap,srcrect->x,srcrect->y,
&temprp,dstrect->x,dstrect->y,
srcrect->w,srcrect->h,0xc0,src->hwdata->mask);
}
}
else if(dst==SDL_VideoSurface)
{
BBRP(src->hwdata->bmap,srcrect->x,srcrect->y,SDL_RastPort,dstrect->x+SDL_Window->BorderLeft,dstrect->y+SDL_Window->BorderTop,srcrect->w,srcrect->h,0xc0);
}
else if(dst->hwdata)
BBB(src->hwdata->bmap,srcrect->x,srcrect->y,dst->hwdata->bmap,dstrect->x,dstrect->y,srcrect->w,srcrect->h,0xc0,0xff,NULL);
}
int CGX_FillHWRect(_THIS,SDL_Surface *dst,SDL_Rect *dstrect,Uint32 color)
{
if(dst==SDL_VideoSurface)
{
FillPixelArray(SDL_RastPort,dstrect->x+SDL_Window->BorderLeft,dstrect->y+SDL_Window->BorderTop,dstrect->w,dstrect->h,color);
}
else if(dst->hwdata)
{
if(!temprp_init)
{
InitRastPort(&temprp);
temprp_init=1;
}
temprp.BitMap=(struct BitMap *)dst->hwdata->bmap;
FillPixelArray(&temprp,dstrect->x,dstrect->y,dstrect->w,dstrect->h,color);
}
}