ShuriZma
/
mgba
mirror of https://github.com/mgba-emu/mgba.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Windows on backdrop and blending with backdrop

This commit is contained in:
Jeffrey Pfau 2013-09-23 20:39:28 -07:00
parent 8132341b75
commit abc89982be
1 changed files with 32 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
src/gba/renderers/video-software.c
View File

@ -359,17 +359,6 @@ static void GBAVideoSoftwareRendererDrawScanline(struct GBAVideoRenderer* render
row[x] = GBA_COLOR_WHITE;
}
return;
} else {
uint32_t backdrop = FLAG_UNWRITTEN | FLAG_PRIORITY | FLAG_IS_BACKGROUND;
if (!softwareRenderer->target1Bd || softwareRenderer->blendEffect == BLEND_NONE || softwareRenderer->blendEffect == BLEND_ALPHA) {
backdrop |= softwareRenderer->normalPalette[0];
} else {
backdrop |= softwareRenderer->variantPalette[0];
}
int x;
for (x = 0; x < VIDEO_HORIZONTAL_PIXELS; ++x) {
softwareRenderer->row[x] = backdrop;
}
}
memset(softwareRenderer->spriteLayer, 0, sizeof(softwareRenderer->spriteLayer));
@ -388,7 +377,39 @@ static void GBAVideoSoftwareRendererDrawScanline(struct GBAVideoRenderer* render
softwareRenderer->windows[0].control.packed = 0xFF;
}
int w;
int x = 0;
for (w = 0; w < softwareRenderer->nWindows; ++w) {
uint32_t backdrop = FLAG_UNWRITTEN | FLAG_PRIORITY | FLAG_IS_BACKGROUND;
if (!softwareRenderer->target1Bd || softwareRenderer->blendEffect == BLEND_NONE || softwareRenderer->blendEffect == BLEND_ALPHA || !softwareRenderer->windows[w].control.blendEnable) {
backdrop |= softwareRenderer->normalPalette[0];
} else {
backdrop |= softwareRenderer->variantPalette[0];
}
for (; x < softwareRenderer->windows[w].endX; ++x) {
softwareRenderer->row[x] = backdrop;
}
}
_drawScanline(softwareRenderer, y);
if (softwareRenderer->target2Bd) {
x = 0;
for (w = 0; w < softwareRenderer->nWindows; ++w) {
uint32_t backdrop = FLAG_UNWRITTEN | FLAG_PRIORITY | FLAG_IS_BACKGROUND;
if (!softwareRenderer->target1Bd || softwareRenderer->blendEffect == BLEND_NONE || softwareRenderer->blendEffect == BLEND_ALPHA || !softwareRenderer->windows[w].control.blendEnable) {
backdrop |= softwareRenderer->normalPalette[0];
} else {
backdrop |= softwareRenderer->variantPalette[0];
}
for (; x < softwareRenderer->windows[w].endX; ++x) {
uint32_t color = softwareRenderer->row[x];
if (color & FLAG_TARGET_1) {
softwareRenderer->row[x] = _mix(softwareRenderer->bldb, backdrop, softwareRenderer->blda, color);
}
}
}
}
memcpy(row, softwareRenderer->row, VIDEO_HORIZONTAL_PIXELS * sizeof(*row));
}