all repos — mgba @ 7f17be5ead1b392b347f4ca3b50b78b7f7d62f36

mGBA Game Boy Advance Emulator

Support WIN0/1 in modes 2 - 5
Jeffrey Pfau jeffrey@endrift.com
Sat, 26 Oct 2013 02:33:29 -0700
commit

7f17be5ead1b392b347f4ca3b50b78b7f7d62f36

parent

6376a1ff7f41da9ddd6bb8bcc2f4925e20aeeb0e

1 files changed, 6 insertions(+), 6 deletions(-)

jump to
M src/gba/renderers/video-software.c → src/gba/renderers/video-software.c 
@@ -993,8 +993,8 @@ }
 
 #define BACKGROUND_BITMAP_INIT \
 	(void)(unused); \
-	int32_t x = background->sx - background->dx; \
-	int32_t y = background->sy - background->dy; \
+	int32_t x = background->sx + (renderer->start - 1) * background->dx; \
+	int32_t y = background->sy + (renderer->start - 1) * background->dy; \
 	int32_t localX; \
 	int32_t localY; \
 	\

@@ -1030,7 +1030,7 @@ uint8_t mapData;
 	uint8_t tileData;
 
 	int outX;
-	for (outX = renderer->start; outX < VIDEO_HORIZONTAL_PIXELS; ++outX) {
+	for (outX = renderer->start; outX < renderer->end; ++outX) {
 		x += background->dx;
 		y += background->dy;
 

@@ -1065,7 +1065,7 @@ uint16_t color;
 	uint32_t color32;
 
 	int outX;
-	for (outX = 0; outX < VIDEO_HORIZONTAL_PIXELS; ++outX) {
+	for (outX = renderer->start; outX < renderer->end; ++outX) {
 		BACKGROUND_BITMAP_ITERATE(VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
 
 		color = ((uint16_t*)renderer->d.vram)[(localX >> 8) + (localY >> 8) * VIDEO_HORIZONTAL_PIXELS];

@@ -1097,7 +1097,7 @@ offset = 0xA000;
 	}
 
 	int outX;
-	for (outX = 0; outX < VIDEO_HORIZONTAL_PIXELS; ++outX) {
+	for (outX = renderer->start; outX < renderer->end; ++outX) {
 		BACKGROUND_BITMAP_ITERATE(VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
 
 		color = ((uint8_t*)renderer->d.vram)[offset + (localX >> 8) + (localY >> 8) * VIDEO_HORIZONTAL_PIXELS];

@@ -1124,7 +1124,7 @@ offset = 0xA000;
 	}
 
 	int outX;
-	for (outX = 0; outX < VIDEO_HORIZONTAL_PIXELS; ++outX) {
+	for (outX = renderer->start; outX < renderer->end; ++outX) {
 		BACKGROUND_BITMAP_ITERATE(160, 128);
 
 		color = ((uint16_t*)renderer->d.vram)[offset + (localX >> 8) + (localY >> 8) * 160];