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

Precompute some parameters in mode 0

This commit is contained in:
Jeffrey Pfau 2013-10-27 22:18:24 -07:00
parent 7132c873e3
commit 1e0f400091
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/gba/renderers/video-software.c
View File

@ -727,12 +727,11 @@ static void _composite(struct GBAVideoSoftwareRenderer* renderer, uint32_t* pixe
if (background->size & 1) { \
xBase += (localX & 0x100) << 5; \
} \
screenBase = (background->screenBase >> 1) + (xBase >> 3) + (yBase << 2); \
screenBase = yBase + (xBase >> 3); \
mapData = renderer->d.vram[screenBase]; \
if (!GBA_TEXT_MAP_VFLIP(mapData)) { \
localY = inY & 0x7; \
} else { \
localY = 7 - (inY & 0x7); \
localY = inY & 0x7; \
if (GBA_TEXT_MAP_VFLIP(mapData)) { \
localY = 7 - localY; \
}
#define PREPARE_OBJWIN \
@ -781,6 +780,7 @@ static void _drawBackgroundMode0(struct GBAVideoSoftwareRenderer* renderer, stru
} else if (background->size == 3) {
yBase += (inY & 0x100) << 1;
}
yBase = (background->screenBase >> 1) + (yBase << 2);
int localX;
int localY;