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GBA Video: Add sprite cycle counting to GL (fixes #1635)

This commit is contained in:
Vicki Pfau 2020-06-10 02:19:41 -07:00
parent 031049cd06
commit 318a96bcb7
2 changed files with 6 additions and 0 deletions
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1
CHANGES
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@ -28,6 +28,7 @@ Emulation fixes:
- GBA Video: Add missing parts of 256-color mode 0 mosaic (fixes mgba.io/i/1701)
- GBA Video: Fix double-size OBJ wrapping in GL renderer (fixes mgba.io/i/1712)
- GBA Video: Simplify sprite cycle counting (fixes mgba.io/i/1279)
- GBA Video: Add sprite cycle counting to GL (fixes mgba.io/i/1635)
- SM83: Emulate HALT bug
Other fixes:
- 3DS: Fix framelimiter on newer citro3d (fixes mgba.io/i/1771)

5
src/gba/renderers/gl.c
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@ -1418,6 +1418,7 @@ void _drawScanlines(struct GBAVideoGLRenderer* glRenderer, int y) {
GBAVideoGLRendererDrawWindow(glRenderer, y);
if (GBARegisterDISPCNTIsObjEnable(glRenderer->dispcnt) && !glRenderer->d.disableOBJ) {
int spriteCyclesRemaining = GBARegisterDISPCNTIsHblankIntervalFree(glRenderer->dispcnt) ? OBJ_HBLANK_FREE_LENGTH : OBJ_LENGTH;
glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
glEnable(GL_STENCIL_TEST);
glDepthFunc(GL_LESS);
@ -1428,6 +1429,10 @@ void _drawScanlines(struct GBAVideoGLRenderer* glRenderer, int y) {
}
GBAVideoGLRendererDrawSprite(glRenderer, &sprite->obj, y, sprite->y);
spriteCyclesRemaining -= sprite->cycles;
if (spriteCyclesRemaining <= 0) {
break;
}
}
glDisable(GL_DEPTH_TEST);
glDisable(GL_STENCIL_TEST);