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SDL_blit_auto.c
5355 lines (5130 loc) · 191 KB
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SDL_blit_auto.c
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/* DO NOT EDIT! This file is generated by sdlgenblit.pl */
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* *INDENT-OFF* */
#include "SDL_video.h"
#include "SDL_blit.h"
#include "SDL_blit_auto.h"
static void SDL_Blit_RGB888_RGB888_Scale(SDL_BlitInfo *info)
{
const int flags = info->flags;
int srcy, srcx;
int posy, posx;
int incy, incx;
srcy = 0;
posy = 0;
incy = (info->src_h << 16) / info->dst_h;
incx = (info->src_w << 16) / info->dst_w;
while (info->dst_h--) {
Uint32 *src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
srcx = -1;
posx = 0x10000L;
while (posy >= 0x10000L) {
++srcy;
posy -= 0x10000L;
}
while (n--) {
if (posx >= 0x10000L) {
while (posx >= 0x10000L) {
++srcx;
posx -= 0x10000L;
}
src = (Uint32 *)(info->src + (srcy * info->src_pitch) + (srcx * 4));
}
*dst = *src;
posx += incx;
++dst;
}
posy += incy;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_RGB888_Blend(SDL_BlitInfo *info)
{
const int flags = info->flags;
Uint32 srcpixel;
Uint32 srcR, srcG, srcB, srcA;
Uint32 dstpixel;
Uint32 dstR, dstG, dstB, dstA;
while (info->dst_h--) {
Uint32 *src = (Uint32 *)info->src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
while (n--) {
srcpixel = *src;
srcR = (Uint8)(srcpixel >> 16); srcG = (Uint8)(srcpixel >> 8); srcB = (Uint8)srcpixel; srcA = 0xFF;
dstpixel = *dst;
dstR = (Uint8)(dstpixel >> 16); dstG = (Uint8)(dstpixel >> 8); dstB = (Uint8)dstpixel; dstA = 0xFF;
if (flags & (SDL_COPY_BLEND|SDL_COPY_ADD)) {
/* This goes away if we ever use premultiplied alpha */
if (srcA < 255) {
srcR = (srcR * srcA) / 255;
srcG = (srcG * srcA) / 255;
srcB = (srcB * srcA) / 255;
}
}
switch (flags & (SDL_COPY_MASK|SDL_COPY_BLEND|SDL_COPY_ADD|SDL_COPY_MOD)) {
case SDL_COPY_MASK:
if (srcA) {
dstR = srcR;
dstG = srcG;
dstB = srcB;
}
break;
case SDL_COPY_BLEND:
dstR = srcR + ((255 - srcA) * dstR) / 255;
dstG = srcG + ((255 - srcA) * dstG) / 255;
dstB = srcB + ((255 - srcA) * dstB) / 255;
break;
case SDL_COPY_ADD:
dstR = srcR + dstR; if (dstR > 255) dstR = 255;
dstG = srcG + dstG; if (dstG > 255) dstG = 255;
dstB = srcB + dstB; if (dstB > 255) dstB = 255;
break;
case SDL_COPY_MOD:
dstR = (srcR * dstR) / 255;
dstG = (srcG * dstG) / 255;
dstB = (srcB * dstB) / 255;
break;
}
dstpixel = ((Uint32)dstR << 16) | ((Uint32)dstG << 8) | dstB;
*dst = dstpixel;
++src;
++dst;
}
info->src += info->src_pitch;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_RGB888_Blend_Scale(SDL_BlitInfo *info)
{
const int flags = info->flags;
Uint32 srcpixel;
Uint32 srcR, srcG, srcB, srcA;
Uint32 dstpixel;
Uint32 dstR, dstG, dstB, dstA;
int srcy, srcx;
int posy, posx;
int incy, incx;
srcy = 0;
posy = 0;
incy = (info->src_h << 16) / info->dst_h;
incx = (info->src_w << 16) / info->dst_w;
while (info->dst_h--) {
Uint32 *src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
srcx = -1;
posx = 0x10000L;
while (posy >= 0x10000L) {
++srcy;
posy -= 0x10000L;
}
while (n--) {
if (posx >= 0x10000L) {
while (posx >= 0x10000L) {
++srcx;
posx -= 0x10000L;
}
src = (Uint32 *)(info->src + (srcy * info->src_pitch) + (srcx * 4));
}
srcpixel = *src;
srcR = (Uint8)(srcpixel >> 16); srcG = (Uint8)(srcpixel >> 8); srcB = (Uint8)srcpixel; srcA = 0xFF;
dstpixel = *dst;
dstR = (Uint8)(dstpixel >> 16); dstG = (Uint8)(dstpixel >> 8); dstB = (Uint8)dstpixel; dstA = 0xFF;
if (flags & (SDL_COPY_BLEND|SDL_COPY_ADD)) {
/* This goes away if we ever use premultiplied alpha */
if (srcA < 255) {
srcR = (srcR * srcA) / 255;
srcG = (srcG * srcA) / 255;
srcB = (srcB * srcA) / 255;
}
}
switch (flags & (SDL_COPY_MASK|SDL_COPY_BLEND|SDL_COPY_ADD|SDL_COPY_MOD)) {
case SDL_COPY_MASK:
if (srcA) {
dstR = srcR;
dstG = srcG;
dstB = srcB;
}
break;
case SDL_COPY_BLEND:
dstR = srcR + ((255 - srcA) * dstR) / 255;
dstG = srcG + ((255 - srcA) * dstG) / 255;
dstB = srcB + ((255 - srcA) * dstB) / 255;
break;
case SDL_COPY_ADD:
dstR = srcR + dstR; if (dstR > 255) dstR = 255;
dstG = srcG + dstG; if (dstG > 255) dstG = 255;
dstB = srcB + dstB; if (dstB > 255) dstB = 255;
break;
case SDL_COPY_MOD:
dstR = (srcR * dstR) / 255;
dstG = (srcG * dstG) / 255;
dstB = (srcB * dstB) / 255;
break;
}
dstpixel = ((Uint32)dstR << 16) | ((Uint32)dstG << 8) | dstB;
*dst = dstpixel;
posx += incx;
++dst;
}
posy += incy;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_RGB888_Modulate(SDL_BlitInfo *info)
{
const int flags = info->flags;
const Uint32 modulateR = info->r;
const Uint32 modulateG = info->g;
const Uint32 modulateB = info->b;
const Uint32 modulateA = info->a;
Uint32 pixel;
Uint32 R, G, B, A;
while (info->dst_h--) {
Uint32 *src = (Uint32 *)info->src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
while (n--) {
pixel = *src;
R = (Uint8)(pixel >> 16); G = (Uint8)(pixel >> 8); B = (Uint8)pixel; A = 0xFF;
if (flags & SDL_COPY_MODULATE_COLOR) {
R = (R * modulateR) / 255;
G = (G * modulateG) / 255;
B = (B * modulateB) / 255;
}
if (flags & SDL_COPY_MODULATE_ALPHA) {
A = (A * modulateA) / 255;
}
pixel = ((Uint32)R << 16) | ((Uint32)G << 8) | B;
*dst = pixel;
++src;
++dst;
}
info->src += info->src_pitch;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_RGB888_Modulate_Scale(SDL_BlitInfo *info)
{
const int flags = info->flags;
const Uint32 modulateR = info->r;
const Uint32 modulateG = info->g;
const Uint32 modulateB = info->b;
const Uint32 modulateA = info->a;
Uint32 pixel;
Uint32 R, G, B, A;
int srcy, srcx;
int posy, posx;
int incy, incx;
srcy = 0;
posy = 0;
incy = (info->src_h << 16) / info->dst_h;
incx = (info->src_w << 16) / info->dst_w;
while (info->dst_h--) {
Uint32 *src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
srcx = -1;
posx = 0x10000L;
while (posy >= 0x10000L) {
++srcy;
posy -= 0x10000L;
}
while (n--) {
if (posx >= 0x10000L) {
while (posx >= 0x10000L) {
++srcx;
posx -= 0x10000L;
}
src = (Uint32 *)(info->src + (srcy * info->src_pitch) + (srcx * 4));
}
pixel = *src;
R = (Uint8)(pixel >> 16); G = (Uint8)(pixel >> 8); B = (Uint8)pixel; A = 0xFF;
if (flags & SDL_COPY_MODULATE_COLOR) {
R = (R * modulateR) / 255;
G = (G * modulateG) / 255;
B = (B * modulateB) / 255;
}
if (flags & SDL_COPY_MODULATE_ALPHA) {
A = (A * modulateA) / 255;
}
pixel = ((Uint32)R << 16) | ((Uint32)G << 8) | B;
*dst = pixel;
posx += incx;
++dst;
}
posy += incy;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_RGB888_Modulate_Blend(SDL_BlitInfo *info)
{
const int flags = info->flags;
const Uint32 modulateR = info->r;
const Uint32 modulateG = info->g;
const Uint32 modulateB = info->b;
const Uint32 modulateA = info->a;
Uint32 srcpixel;
Uint32 srcR, srcG, srcB, srcA;
Uint32 dstpixel;
Uint32 dstR, dstG, dstB, dstA;
while (info->dst_h--) {
Uint32 *src = (Uint32 *)info->src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
while (n--) {
srcpixel = *src;
srcR = (Uint8)(srcpixel >> 16); srcG = (Uint8)(srcpixel >> 8); srcB = (Uint8)srcpixel; srcA = 0xFF;
dstpixel = *dst;
dstR = (Uint8)(dstpixel >> 16); dstG = (Uint8)(dstpixel >> 8); dstB = (Uint8)dstpixel; dstA = 0xFF;
if (flags & SDL_COPY_MODULATE_COLOR) {
srcR = (srcR * modulateR) / 255;
srcG = (srcG * modulateG) / 255;
srcB = (srcB * modulateB) / 255;
}
if (flags & SDL_COPY_MODULATE_ALPHA) {
srcA = (srcA * modulateA) / 255;
}
if (flags & (SDL_COPY_BLEND|SDL_COPY_ADD)) {
/* This goes away if we ever use premultiplied alpha */
if (srcA < 255) {
srcR = (srcR * srcA) / 255;
srcG = (srcG * srcA) / 255;
srcB = (srcB * srcA) / 255;
}
}
switch (flags & (SDL_COPY_MASK|SDL_COPY_BLEND|SDL_COPY_ADD|SDL_COPY_MOD)) {
case SDL_COPY_MASK:
if (srcA) {
dstR = srcR;
dstG = srcG;
dstB = srcB;
}
break;
case SDL_COPY_BLEND:
dstR = srcR + ((255 - srcA) * dstR) / 255;
dstG = srcG + ((255 - srcA) * dstG) / 255;
dstB = srcB + ((255 - srcA) * dstB) / 255;
break;
case SDL_COPY_ADD:
dstR = srcR + dstR; if (dstR > 255) dstR = 255;
dstG = srcG + dstG; if (dstG > 255) dstG = 255;
dstB = srcB + dstB; if (dstB > 255) dstB = 255;
break;
case SDL_COPY_MOD:
dstR = (srcR * dstR) / 255;
dstG = (srcG * dstG) / 255;
dstB = (srcB * dstB) / 255;
break;
}
dstpixel = ((Uint32)dstR << 16) | ((Uint32)dstG << 8) | dstB;
*dst = dstpixel;
++src;
++dst;
}
info->src += info->src_pitch;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_RGB888_Modulate_Blend_Scale(SDL_BlitInfo *info)
{
const int flags = info->flags;
const Uint32 modulateR = info->r;
const Uint32 modulateG = info->g;
const Uint32 modulateB = info->b;
const Uint32 modulateA = info->a;
Uint32 srcpixel;
Uint32 srcR, srcG, srcB, srcA;
Uint32 dstpixel;
Uint32 dstR, dstG, dstB, dstA;
int srcy, srcx;
int posy, posx;
int incy, incx;
srcy = 0;
posy = 0;
incy = (info->src_h << 16) / info->dst_h;
incx = (info->src_w << 16) / info->dst_w;
while (info->dst_h--) {
Uint32 *src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
srcx = -1;
posx = 0x10000L;
while (posy >= 0x10000L) {
++srcy;
posy -= 0x10000L;
}
while (n--) {
if (posx >= 0x10000L) {
while (posx >= 0x10000L) {
++srcx;
posx -= 0x10000L;
}
src = (Uint32 *)(info->src + (srcy * info->src_pitch) + (srcx * 4));
}
srcpixel = *src;
srcR = (Uint8)(srcpixel >> 16); srcG = (Uint8)(srcpixel >> 8); srcB = (Uint8)srcpixel; srcA = 0xFF;
dstpixel = *dst;
dstR = (Uint8)(dstpixel >> 16); dstG = (Uint8)(dstpixel >> 8); dstB = (Uint8)dstpixel; dstA = 0xFF;
if (flags & SDL_COPY_MODULATE_COLOR) {
srcR = (srcR * modulateR) / 255;
srcG = (srcG * modulateG) / 255;
srcB = (srcB * modulateB) / 255;
}
if (flags & SDL_COPY_MODULATE_ALPHA) {
srcA = (srcA * modulateA) / 255;
}
if (flags & (SDL_COPY_BLEND|SDL_COPY_ADD)) {
/* This goes away if we ever use premultiplied alpha */
if (srcA < 255) {
srcR = (srcR * srcA) / 255;
srcG = (srcG * srcA) / 255;
srcB = (srcB * srcA) / 255;
}
}
switch (flags & (SDL_COPY_MASK|SDL_COPY_BLEND|SDL_COPY_ADD|SDL_COPY_MOD)) {
case SDL_COPY_MASK:
if (srcA) {
dstR = srcR;
dstG = srcG;
dstB = srcB;
}
break;
case SDL_COPY_BLEND:
dstR = srcR + ((255 - srcA) * dstR) / 255;
dstG = srcG + ((255 - srcA) * dstG) / 255;
dstB = srcB + ((255 - srcA) * dstB) / 255;
break;
case SDL_COPY_ADD:
dstR = srcR + dstR; if (dstR > 255) dstR = 255;
dstG = srcG + dstG; if (dstG > 255) dstG = 255;
dstB = srcB + dstB; if (dstB > 255) dstB = 255;
break;
case SDL_COPY_MOD:
dstR = (srcR * dstR) / 255;
dstG = (srcG * dstG) / 255;
dstB = (srcB * dstB) / 255;
break;
}
dstpixel = ((Uint32)dstR << 16) | ((Uint32)dstG << 8) | dstB;
*dst = dstpixel;
posx += incx;
++dst;
}
posy += incy;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_BGR888_Scale(SDL_BlitInfo *info)
{
const int flags = info->flags;
Uint32 pixel;
Uint32 R, G, B, A;
int srcy, srcx;
int posy, posx;
int incy, incx;
srcy = 0;
posy = 0;
incy = (info->src_h << 16) / info->dst_h;
incx = (info->src_w << 16) / info->dst_w;
while (info->dst_h--) {
Uint32 *src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
srcx = -1;
posx = 0x10000L;
while (posy >= 0x10000L) {
++srcy;
posy -= 0x10000L;
}
while (n--) {
if (posx >= 0x10000L) {
while (posx >= 0x10000L) {
++srcx;
posx -= 0x10000L;
}
src = (Uint32 *)(info->src + (srcy * info->src_pitch) + (srcx * 4));
}
pixel = *src;
R = (Uint8)(pixel >> 16); G = (Uint8)(pixel >> 8); B = (Uint8)pixel; A = 0xFF;
pixel = ((Uint32)B << 16) | ((Uint32)G << 8) | R;
*dst = pixel;
posx += incx;
++dst;
}
posy += incy;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_BGR888_Blend(SDL_BlitInfo *info)
{
const int flags = info->flags;
Uint32 srcpixel;
Uint32 srcR, srcG, srcB, srcA;
Uint32 dstpixel;
Uint32 dstR, dstG, dstB, dstA;
while (info->dst_h--) {
Uint32 *src = (Uint32 *)info->src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
while (n--) {
srcpixel = *src;
srcR = (Uint8)(srcpixel >> 16); srcG = (Uint8)(srcpixel >> 8); srcB = (Uint8)srcpixel; srcA = 0xFF;
dstpixel = *dst;
dstB = (Uint8)(dstpixel >> 16); dstG = (Uint8)(dstpixel >> 8); dstR = (Uint8)dstpixel; dstA = 0xFF;
if (flags & (SDL_COPY_BLEND|SDL_COPY_ADD)) {
/* This goes away if we ever use premultiplied alpha */
if (srcA < 255) {
srcR = (srcR * srcA) / 255;
srcG = (srcG * srcA) / 255;
srcB = (srcB * srcA) / 255;
}
}
switch (flags & (SDL_COPY_MASK|SDL_COPY_BLEND|SDL_COPY_ADD|SDL_COPY_MOD)) {
case SDL_COPY_MASK:
if (srcA) {
dstR = srcR;
dstG = srcG;
dstB = srcB;
}
break;
case SDL_COPY_BLEND:
dstR = srcR + ((255 - srcA) * dstR) / 255;
dstG = srcG + ((255 - srcA) * dstG) / 255;
dstB = srcB + ((255 - srcA) * dstB) / 255;
break;
case SDL_COPY_ADD:
dstR = srcR + dstR; if (dstR > 255) dstR = 255;
dstG = srcG + dstG; if (dstG > 255) dstG = 255;
dstB = srcB + dstB; if (dstB > 255) dstB = 255;
break;
case SDL_COPY_MOD:
dstR = (srcR * dstR) / 255;
dstG = (srcG * dstG) / 255;
dstB = (srcB * dstB) / 255;
break;
}
dstpixel = ((Uint32)dstB << 16) | ((Uint32)dstG << 8) | dstR;
*dst = dstpixel;
++src;
++dst;
}
info->src += info->src_pitch;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_BGR888_Blend_Scale(SDL_BlitInfo *info)
{
const int flags = info->flags;
Uint32 srcpixel;
Uint32 srcR, srcG, srcB, srcA;
Uint32 dstpixel;
Uint32 dstR, dstG, dstB, dstA;
int srcy, srcx;
int posy, posx;
int incy, incx;
srcy = 0;
posy = 0;
incy = (info->src_h << 16) / info->dst_h;
incx = (info->src_w << 16) / info->dst_w;
while (info->dst_h--) {
Uint32 *src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
srcx = -1;
posx = 0x10000L;
while (posy >= 0x10000L) {
++srcy;
posy -= 0x10000L;
}
while (n--) {
if (posx >= 0x10000L) {
while (posx >= 0x10000L) {
++srcx;
posx -= 0x10000L;
}
src = (Uint32 *)(info->src + (srcy * info->src_pitch) + (srcx * 4));
}
srcpixel = *src;
srcR = (Uint8)(srcpixel >> 16); srcG = (Uint8)(srcpixel >> 8); srcB = (Uint8)srcpixel; srcA = 0xFF;
dstpixel = *dst;
dstB = (Uint8)(dstpixel >> 16); dstG = (Uint8)(dstpixel >> 8); dstR = (Uint8)dstpixel; dstA = 0xFF;
if (flags & (SDL_COPY_BLEND|SDL_COPY_ADD)) {
/* This goes away if we ever use premultiplied alpha */
if (srcA < 255) {
srcR = (srcR * srcA) / 255;
srcG = (srcG * srcA) / 255;
srcB = (srcB * srcA) / 255;
}
}
switch (flags & (SDL_COPY_MASK|SDL_COPY_BLEND|SDL_COPY_ADD|SDL_COPY_MOD)) {
case SDL_COPY_MASK:
if (srcA) {
dstR = srcR;
dstG = srcG;
dstB = srcB;
}
break;
case SDL_COPY_BLEND:
dstR = srcR + ((255 - srcA) * dstR) / 255;
dstG = srcG + ((255 - srcA) * dstG) / 255;
dstB = srcB + ((255 - srcA) * dstB) / 255;
break;
case SDL_COPY_ADD:
dstR = srcR + dstR; if (dstR > 255) dstR = 255;
dstG = srcG + dstG; if (dstG > 255) dstG = 255;
dstB = srcB + dstB; if (dstB > 255) dstB = 255;
break;
case SDL_COPY_MOD:
dstR = (srcR * dstR) / 255;
dstG = (srcG * dstG) / 255;
dstB = (srcB * dstB) / 255;
break;
}
dstpixel = ((Uint32)dstB << 16) | ((Uint32)dstG << 8) | dstR;
*dst = dstpixel;
posx += incx;
++dst;
}
posy += incy;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_BGR888_Modulate(SDL_BlitInfo *info)
{
const int flags = info->flags;
const Uint32 modulateR = info->r;
const Uint32 modulateG = info->g;
const Uint32 modulateB = info->b;
const Uint32 modulateA = info->a;
Uint32 pixel;
Uint32 R, G, B, A;
while (info->dst_h--) {
Uint32 *src = (Uint32 *)info->src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
while (n--) {
pixel = *src;
R = (Uint8)(pixel >> 16); G = (Uint8)(pixel >> 8); B = (Uint8)pixel; A = 0xFF;
if (flags & SDL_COPY_MODULATE_COLOR) {
R = (R * modulateR) / 255;
G = (G * modulateG) / 255;
B = (B * modulateB) / 255;
}
if (flags & SDL_COPY_MODULATE_ALPHA) {
A = (A * modulateA) / 255;
}
pixel = ((Uint32)B << 16) | ((Uint32)G << 8) | R;
*dst = pixel;
++src;
++dst;
}
info->src += info->src_pitch;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_BGR888_Modulate_Scale(SDL_BlitInfo *info)
{
const int flags = info->flags;
const Uint32 modulateR = info->r;
const Uint32 modulateG = info->g;
const Uint32 modulateB = info->b;
const Uint32 modulateA = info->a;
Uint32 pixel;
Uint32 R, G, B, A;
int srcy, srcx;
int posy, posx;
int incy, incx;
srcy = 0;
posy = 0;
incy = (info->src_h << 16) / info->dst_h;
incx = (info->src_w << 16) / info->dst_w;
while (info->dst_h--) {
Uint32 *src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
srcx = -1;
posx = 0x10000L;
while (posy >= 0x10000L) {
++srcy;
posy -= 0x10000L;
}
while (n--) {
if (posx >= 0x10000L) {
while (posx >= 0x10000L) {
++srcx;
posx -= 0x10000L;
}
src = (Uint32 *)(info->src + (srcy * info->src_pitch) + (srcx * 4));
}
pixel = *src;
R = (Uint8)(pixel >> 16); G = (Uint8)(pixel >> 8); B = (Uint8)pixel; A = 0xFF;
if (flags & SDL_COPY_MODULATE_COLOR) {
R = (R * modulateR) / 255;
G = (G * modulateG) / 255;
B = (B * modulateB) / 255;
}
if (flags & SDL_COPY_MODULATE_ALPHA) {
A = (A * modulateA) / 255;
}
pixel = ((Uint32)B << 16) | ((Uint32)G << 8) | R;
*dst = pixel;
posx += incx;
++dst;
}
posy += incy;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_BGR888_Modulate_Blend(SDL_BlitInfo *info)
{
const int flags = info->flags;
const Uint32 modulateR = info->r;
const Uint32 modulateG = info->g;
const Uint32 modulateB = info->b;
const Uint32 modulateA = info->a;
Uint32 srcpixel;
Uint32 srcR, srcG, srcB, srcA;
Uint32 dstpixel;
Uint32 dstR, dstG, dstB, dstA;
while (info->dst_h--) {
Uint32 *src = (Uint32 *)info->src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
while (n--) {
srcpixel = *src;
srcR = (Uint8)(srcpixel >> 16); srcG = (Uint8)(srcpixel >> 8); srcB = (Uint8)srcpixel; srcA = 0xFF;
dstpixel = *dst;
dstB = (Uint8)(dstpixel >> 16); dstG = (Uint8)(dstpixel >> 8); dstR = (Uint8)dstpixel; dstA = 0xFF;
if (flags & SDL_COPY_MODULATE_COLOR) {
srcR = (srcR * modulateR) / 255;
srcG = (srcG * modulateG) / 255;
srcB = (srcB * modulateB) / 255;
}
if (flags & SDL_COPY_MODULATE_ALPHA) {
srcA = (srcA * modulateA) / 255;
}
if (flags & (SDL_COPY_BLEND|SDL_COPY_ADD)) {
/* This goes away if we ever use premultiplied alpha */
if (srcA < 255) {
srcR = (srcR * srcA) / 255;
srcG = (srcG * srcA) / 255;
srcB = (srcB * srcA) / 255;
}
}
switch (flags & (SDL_COPY_MASK|SDL_COPY_BLEND|SDL_COPY_ADD|SDL_COPY_MOD)) {
case SDL_COPY_MASK:
if (srcA) {
dstR = srcR;
dstG = srcG;
dstB = srcB;
}
break;
case SDL_COPY_BLEND:
dstR = srcR + ((255 - srcA) * dstR) / 255;
dstG = srcG + ((255 - srcA) * dstG) / 255;
dstB = srcB + ((255 - srcA) * dstB) / 255;
break;
case SDL_COPY_ADD:
dstR = srcR + dstR; if (dstR > 255) dstR = 255;
dstG = srcG + dstG; if (dstG > 255) dstG = 255;
dstB = srcB + dstB; if (dstB > 255) dstB = 255;
break;
case SDL_COPY_MOD:
dstR = (srcR * dstR) / 255;
dstG = (srcG * dstG) / 255;
dstB = (srcB * dstB) / 255;
break;
}
dstpixel = ((Uint32)dstB << 16) | ((Uint32)dstG << 8) | dstR;
*dst = dstpixel;
++src;
++dst;
}
info->src += info->src_pitch;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_RGB888_BGR888_Modulate_Blend_Scale(SDL_BlitInfo *info)
{
const int flags = info->flags;
const Uint32 modulateR = info->r;
const Uint32 modulateG = info->g;
const Uint32 modulateB = info->b;
const Uint32 modulateA = info->a;
Uint32 srcpixel;
Uint32 srcR, srcG, srcB, srcA;
Uint32 dstpixel;
Uint32 dstR, dstG, dstB, dstA;
int srcy, srcx;
int posy, posx;
int incy, incx;
srcy = 0;
posy = 0;
incy = (info->src_h << 16) / info->dst_h;
incx = (info->src_w << 16) / info->dst_w;
while (info->dst_h--) {
Uint32 *src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
srcx = -1;
posx = 0x10000L;
while (posy >= 0x10000L) {
++srcy;
posy -= 0x10000L;
}
while (n--) {
if (posx >= 0x10000L) {
while (posx >= 0x10000L) {
++srcx;
posx -= 0x10000L;
}
src = (Uint32 *)(info->src + (srcy * info->src_pitch) + (srcx * 4));
}
srcpixel = *src;
srcR = (Uint8)(srcpixel >> 16); srcG = (Uint8)(srcpixel >> 8); srcB = (Uint8)srcpixel; srcA = 0xFF;
dstpixel = *dst;
dstB = (Uint8)(dstpixel >> 16); dstG = (Uint8)(dstpixel >> 8); dstR = (Uint8)dstpixel; dstA = 0xFF;
if (flags & SDL_COPY_MODULATE_COLOR) {
srcR = (srcR * modulateR) / 255;
srcG = (srcG * modulateG) / 255;
srcB = (srcB * modulateB) / 255;
}
if (flags & SDL_COPY_MODULATE_ALPHA) {
srcA = (srcA * modulateA) / 255;
}
if (flags & (SDL_COPY_BLEND|SDL_COPY_ADD)) {
/* This goes away if we ever use premultiplied alpha */
if (srcA < 255) {
srcR = (srcR * srcA) / 255;
srcG = (srcG * srcA) / 255;
srcB = (srcB * srcA) / 255;
}
}
switch (flags & (SDL_COPY_MASK|SDL_COPY_BLEND|SDL_COPY_ADD|SDL_COPY_MOD)) {
case SDL_COPY_MASK:
if (srcA) {
dstR = srcR;
dstG = srcG;
dstB = srcB;
}
break;
case SDL_COPY_BLEND:
dstR = srcR + ((255 - srcA) * dstR) / 255;
dstG = srcG + ((255 - srcA) * dstG) / 255;
dstB = srcB + ((255 - srcA) * dstB) / 255;
break;
case SDL_COPY_ADD:
dstR = srcR + dstR; if (dstR > 255) dstR = 255;
dstG = srcG + dstG; if (dstG > 255) dstG = 255;
dstB = srcB + dstB; if (dstB > 255) dstB = 255;
break;
case SDL_COPY_MOD:
dstR = (srcR * dstR) / 255;
dstG = (srcG * dstG) / 255;
dstB = (srcB * dstB) / 255;
break;
}
dstpixel = ((Uint32)dstB << 16) | ((Uint32)dstG << 8) | dstR;
*dst = dstpixel;
posx += incx;
++dst;
}
posy += incy;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_BGR888_RGB888_Scale(SDL_BlitInfo *info)
{
const int flags = info->flags;
Uint32 pixel;
Uint32 R, G, B, A;
int srcy, srcx;
int posy, posx;
int incy, incx;
srcy = 0;
posy = 0;
incy = (info->src_h << 16) / info->dst_h;
incx = (info->src_w << 16) / info->dst_w;
while (info->dst_h--) {
Uint32 *src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
srcx = -1;
posx = 0x10000L;
while (posy >= 0x10000L) {
++srcy;
posy -= 0x10000L;
}
while (n--) {
if (posx >= 0x10000L) {
while (posx >= 0x10000L) {
++srcx;
posx -= 0x10000L;
}
src = (Uint32 *)(info->src + (srcy * info->src_pitch) + (srcx * 4));
}
pixel = *src;
B = (Uint8)(pixel >> 16); G = (Uint8)(pixel >> 8); R = (Uint8)pixel; A = 0xFF;
pixel = ((Uint32)R << 16) | ((Uint32)G << 8) | B;
*dst = pixel;
posx += incx;
++dst;
}
posy += incy;
info->dst += info->dst_pitch;
}
}
static void SDL_Blit_BGR888_RGB888_Blend(SDL_BlitInfo *info)
{
const int flags = info->flags;
Uint32 srcpixel;
Uint32 srcR, srcG, srcB, srcA;
Uint32 dstpixel;
Uint32 dstR, dstG, dstB, dstA;
while (info->dst_h--) {
Uint32 *src = (Uint32 *)info->src;
Uint32 *dst = (Uint32 *)info->dst;
int n = info->dst_w;
while (n--) {
srcpixel = *src;
srcB = (Uint8)(srcpixel >> 16); srcG = (Uint8)(srcpixel >> 8); srcR = (Uint8)srcpixel; srcA = 0xFF;
dstpixel = *dst;
dstR = (Uint8)(dstpixel >> 16); dstG = (Uint8)(dstpixel >> 8); dstB = (Uint8)dstpixel; dstA = 0xFF;
if (flags & (SDL_COPY_BLEND|SDL_COPY_ADD)) {
/* This goes away if we ever use premultiplied alpha */
if (srcA < 255) {
srcR = (srcR * srcA) / 255;
srcG = (srcG * srcA) / 255;
srcB = (srcB * srcA) / 255;
}
}
switch (flags & (SDL_COPY_MASK|SDL_COPY_BLEND|SDL_COPY_ADD|SDL_COPY_MOD)) {
case SDL_COPY_MASK:
if (srcA) {
dstR = srcR;
dstG = srcG;
dstB = srcB;
}
break;
case SDL_COPY_BLEND:
dstR = srcR + ((255 - srcA) * dstR) / 255;
dstG = srcG + ((255 - srcA) * dstG) / 255;
dstB = srcB + ((255 - srcA) * dstB) / 255;
break;
case SDL_COPY_ADD:
dstR = srcR + dstR; if (dstR > 255) dstR = 255;
dstG = srcG + dstG; if (dstG > 255) dstG = 255;
dstB = srcB + dstB; if (dstB > 255) dstB = 255;
break;
case SDL_COPY_MOD:
dstR = (srcR * dstR) / 255;
dstG = (srcG * dstG) / 255;
dstB = (srcB * dstB) / 255;
break;
}
dstpixel = ((Uint32)dstR << 16) | ((Uint32)dstG << 8) | dstB;
*dst = dstpixel;
++src;
++dst;
}
info->src += info->src_pitch;
info->dst += info->dst_pitch;
}