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GBA Video: Fix rare crash in modes 3-5

This commit is contained in:
Vicki Pfau 2022-01-30 19:21:27 -08:00
parent cdc7535167
commit 73efec2a02
2 changed files with 4 additions and 3 deletions
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1
CHANGES
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@ -27,6 +27,7 @@ Emulation fixes:
- GBA Video: Fix OpenGL rendering on M1 Macs
- GBA Video: Ignore horizontally off-screen sprite timing (fixes mgba.io/i/2391)
- GBA Video: Fix Hblank timing (fixes mgba.io/i/2131, mgba.io/i/2310)
- GBA Video: Fix rare crash in modes 3-5
Other fixes:
- Core: Don't attempt to restore rewind diffs past start of rewind
- FFmpeg: Fix crash when encoding audio with some containers

6
src/gba/renderers/software-bg.c
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@ -108,7 +108,7 @@ void GBAVideoSoftwareRendererDrawBackgroundMode3(struct GBAVideoSoftwareRenderer
BACKGROUND_BITMAP_INIT;
uint32_t color = renderer->normalPalette[0];
if (mosaicWait && localX >= 0 && localY >= 0) {
if (mosaicWait && localX >= 0 && localY >= 0 && (localX >> 8) < GBA_VIDEO_HORIZONTAL_PIXELS && (localY >> 8) < GBA_VIDEO_VERTICAL_PIXELS) {
LOAD_16(color, ((localX >> 8) + (localY >> 8) * GBA_VIDEO_HORIZONTAL_PIXELS) << 1, renderer->d.vram);
color = mColorFrom555(color);
}
@ -151,7 +151,7 @@ void GBAVideoSoftwareRendererDrawBackgroundMode4(struct GBAVideoSoftwareRenderer
if (GBARegisterDISPCNTIsFrameSelect(renderer->dispcnt)) {
offset = 0xA000;
}
if (mosaicWait && localX >= 0 && localY >= 0) {
if (mosaicWait && localX >= 0 && localY >= 0 && (localX >> 8) < GBA_VIDEO_HORIZONTAL_PIXELS && (localY >> 8) < GBA_VIDEO_VERTICAL_PIXELS) {
color = ((uint8_t*)renderer->d.vram)[offset + (localX >> 8) + (localY >> 8) * GBA_VIDEO_HORIZONTAL_PIXELS];
}
@ -192,7 +192,7 @@ void GBAVideoSoftwareRendererDrawBackgroundMode5(struct GBAVideoSoftwareRenderer
if (GBARegisterDISPCNTIsFrameSelect(renderer->dispcnt)) {
offset = 0xA000;
}
if (mosaicWait && localX >= 0 && localY >= 0) {
if (mosaicWait && localX >= 0 && localY >= 0 && (localX >> 8) < 160 && (localY >> 8) < 128) {
LOAD_16(color, offset + (localX >> 8) * 2 + (localY >> 8) * 320, renderer->d.vram);
color = mColorFrom555(color);
}