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Reuse bitmap mode background code

This commit is contained in:
Jeffrey Pfau 2013-07-20 01:38:13 -07:00
parent 90ddf937a5
commit 02cb9c56c5
1 changed files with 27 additions and 45 deletions
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72
src/gba/renderers/video-software.c
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@ -810,24 +810,38 @@ static void _drawBackgroundMode0(struct GBAVideoSoftwareRenderer* renderer, stru
}
}
#define BACKGROUND_BITMAP_INIT \
int32_t x = background->sx - background->dx; \
int32_t y = background->sy - background->dy; \
int32_t localX; \
int32_t localY; \
\
int flags = (background->priority << OFFSET_PRIORITY) | FLAG_IS_BACKGROUND; \
flags |= FLAG_TARGET_1 * (background->target1 && renderer->blendEffect == BLEND_ALPHA); \
flags |= FLAG_TARGET_2 * background->target2; \
int variant = background->target1 && (renderer->blendEffect == BLEND_BRIGHTEN || renderer->blendEffect == BLEND_DARKEN);
#define BACKGROUND_BITMAP_ITERATE \
x += background->dx; \
y += background->dy; \
\
if (x < 0 || y < 0 || (x >> 8) >= VIDEO_HORIZONTAL_PIXELS || (y >> 8) >= VIDEO_VERTICAL_PIXELS) { \
continue; \
} else { \
localX = x; \
localY = y; \
}
static void _drawBackgroundMode2(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int unused) {
(void)(unused);
int sizeAdjusted = 0x8000 << background->size;
int32_t x = background->sx - background->dx;
int32_t y = background->sy - background->dy;
int32_t localX;
int32_t localY;
int flags = (background->priority << OFFSET_PRIORITY) | FLAG_IS_BACKGROUND;
flags |= FLAG_TARGET_1 * (background->target1 && renderer->blendEffect == BLEND_ALPHA);
flags |= FLAG_TARGET_2 * background->target2;
BACKGROUND_BITMAP_INIT;
uint32_t screenBase = background->screenBase;
uint32_t charBase = background->charBase;
uint8_t mapData;
uint8_t tileData;
int variant = background->target1 && (renderer->blendEffect == BLEND_BRIGHTEN || renderer->blendEffect == BLEND_DARKEN);
int outX;
for (outX = 0; outX < VIDEO_HORIZONTAL_PIXELS; ++outX) {
@ -859,30 +873,14 @@ static void _drawBackgroundMode2(struct GBAVideoSoftwareRenderer* renderer, stru
static void _drawBackgroundMode3(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int unused) {
(void)(unused);
int32_t x = background->sx - background->dx;
int32_t y = background->sy - background->dy;
int32_t localX;
int32_t localY;
int flags = (background->priority << OFFSET_PRIORITY) | FLAG_IS_BACKGROUND;
flags |= FLAG_TARGET_1 * (background->target1 && renderer->blendEffect == BLEND_ALPHA);
flags |= FLAG_TARGET_2 * background->target2;
BACKGROUND_BITMAP_INIT;
uint16_t color;
uint32_t color32;
int variant = background->target1 && (renderer->blendEffect == BLEND_BRIGHTEN || renderer->blendEffect == BLEND_DARKEN);
int outX;
for (outX = 0; outX < VIDEO_HORIZONTAL_PIXELS; ++outX) {
x += background->dx;
y += background->dy;
if (x < 0 || y < 0 || (x >> 8) >= VIDEO_HORIZONTAL_PIXELS || (y >> 8) >= VIDEO_VERTICAL_PIXELS) {
continue;
} else {
localX = x;
localY = y;
}
BACKGROUND_BITMAP_ITERATE;
color = ((uint16_t*)renderer->d.vram)[(localX >> 8) + (localY >> 8) * VIDEO_HORIZONTAL_PIXELS];
color32 = 0;
@ -905,17 +903,9 @@ static void _drawBackgroundMode3(struct GBAVideoSoftwareRenderer* renderer, stru
static void _drawBackgroundMode4(struct GBAVideoSoftwareRenderer* renderer, struct GBAVideoSoftwareBackground* background, int unused) {
(void)(unused);
int32_t x = background->sx - background->dx;
int32_t y = background->sy - background->dy;
int32_t localX;
int32_t localY;
int flags = (background->priority << OFFSET_PRIORITY) | FLAG_IS_BACKGROUND;
flags |= FLAG_TARGET_1 * (background->target1 && renderer->blendEffect == BLEND_ALPHA);
flags |= FLAG_TARGET_2 * background->target2;
BACKGROUND_BITMAP_INIT;
uint16_t color;
int variant = background->target1 && (renderer->blendEffect == BLEND_BRIGHTEN || renderer->blendEffect == BLEND_DARKEN);
uint32_t offset = 0;
if (renderer->dispcnt.frameSelect) {
offset = 0xA000;
@ -923,15 +913,7 @@ static void _drawBackgroundMode4(struct GBAVideoSoftwareRenderer* renderer, stru
int outX;
for (outX = 0; outX < VIDEO_HORIZONTAL_PIXELS; ++outX) {
x += background->dx;
y += background->dy;
if (x < 0 || y < 0 || (x >> 8) >= VIDEO_HORIZONTAL_PIXELS || (y >> 8) >= VIDEO_VERTICAL_PIXELS) {
continue;
} else {
localX = x;
localY = y;
}
BACKGROUND_BITMAP_ITERATE;
color = ((uint8_t*)renderer->d.vram)[offset + (localX >> 8) + (localY >> 8) * VIDEO_HORIZONTAL_PIXELS];