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GBA Video: Callback for VRAM writes

This commit is contained in:
Jeffrey Pfau 2015-07-28 13:15:37 -07:00
parent d3c04ffaa0
commit 5f572ffb62
4 changed files with 24 additions and 2 deletions
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10
src/gba/memory.c
View File

@ -634,8 +634,12 @@ uint32_t GBALoad8(struct ARMCore* cpu, uint32_t address, int* cycleCounter) {
#define STORE_VRAM \
if ((address & 0x0001FFFF) < SIZE_VRAM) { \
STORE_32(value, address & 0x0001FFFC, gba->video.renderer->vram); \
gba->video.renderer->writeVRAM(gba->video.renderer, (address & 0x0001FFFC) + 2); \
gba->video.renderer->writeVRAM(gba->video.renderer, (address & 0x0001FFFC)); \
} else { \
STORE_32(value, address & 0x00017FFC, gba->video.renderer->vram); \
gba->video.renderer->writeVRAM(gba->video.renderer, (address & 0x00017FFC) + 2); \
gba->video.renderer->writeVRAM(gba->video.renderer, (address & 0x00017FFC)); \
} \
wait += waitstatesRegion[REGION_VRAM];
@ -728,8 +732,10 @@ void GBAStore16(struct ARMCore* cpu, uint32_t address, int16_t value, int* cycle
case REGION_VRAM:
if ((address & 0x0001FFFF) < SIZE_VRAM) {
STORE_16(value, address & 0x0001FFFE, gba->video.renderer->vram);
gba->video.renderer->writeVRAM(gba->video.renderer, address & 0x0001FFFE);
} else {
STORE_16(value, address & 0x00017FFE, gba->video.renderer->vram);
gba->video.renderer->writeVRAM(gba->video.renderer, address & 0x00017FFE);
}
break;
case REGION_OAM:
@ -794,8 +800,8 @@ void GBAStore8(struct ARMCore* cpu, uint32_t address, int8_t value, int* cycleCo
GBALog(gba, GBA_LOG_GAME_ERROR, "Cannot Store8 to OBJ: 0x%08X", address);
break;
}
((int8_t*) gba->video.renderer->vram)[address & 0x1FFFE] = value;
((int8_t*) gba->video.renderer->vram)[(address & 0x1FFFE) | 1] = value;
gba->video.renderer->vram[(address & 0x1FFFE) >> 1] = ((uint8_t) value) | (value << 8);
gba->video.renderer->writeVRAM(gba->video.renderer, address & 0x0001FFFE);
break;
case REGION_OAM:
GBALog(gba, GBA_LOG_GAME_ERROR, "Cannot Store8 to OAM: 0x%08X", address);

7
src/gba/renderers/video-software.c
View File

@ -13,6 +13,7 @@
static void GBAVideoSoftwareRendererInit(struct GBAVideoRenderer* renderer);
static void GBAVideoSoftwareRendererDeinit(struct GBAVideoRenderer* renderer);
static void GBAVideoSoftwareRendererReset(struct GBAVideoRenderer* renderer);
static void GBAVideoSoftwareRendererWriteVRAM(struct GBAVideoRenderer* renderer, uint32_t address);
static void GBAVideoSoftwareRendererWriteOAM(struct GBAVideoRenderer* renderer, uint32_t oam);
static void GBAVideoSoftwareRendererWritePalette(struct GBAVideoRenderer* renderer, uint32_t address, uint16_t value);
static uint16_t GBAVideoSoftwareRendererWriteVideoRegister(struct GBAVideoRenderer* renderer, uint32_t address, uint16_t value);
@ -46,6 +47,7 @@ void GBAVideoSoftwareRendererCreate(struct GBAVideoSoftwareRenderer* renderer) {
renderer->d.reset = GBAVideoSoftwareRendererReset;
renderer->d.deinit = GBAVideoSoftwareRendererDeinit;
renderer->d.writeVideoRegister = GBAVideoSoftwareRendererWriteVideoRegister;
renderer->d.writeVRAM = GBAVideoSoftwareRendererWriteVRAM;
renderer->d.writeOAM = GBAVideoSoftwareRendererWriteOAM;
renderer->d.writePalette = GBAVideoSoftwareRendererWritePalette;
renderer->d.drawScanline = GBAVideoSoftwareRendererDrawScanline;
@ -327,6 +329,11 @@ static uint16_t GBAVideoSoftwareRendererWriteVideoRegister(struct GBAVideoRender
return value;
}
static void GBAVideoSoftwareRendererWriteVRAM(struct GBAVideoRenderer* renderer, uint32_t address) {
UNUSED(renderer);
UNUSED(address);
}
static void GBAVideoSoftwareRendererWriteOAM(struct GBAVideoRenderer* renderer, uint32_t oam) {
struct GBAVideoSoftwareRenderer* softwareRenderer = (struct GBAVideoSoftwareRenderer*) renderer;
softwareRenderer->oamDirty = 1;

8
src/gba/video.c
View File

@ -17,6 +17,7 @@ static void GBAVideoDummyRendererInit(struct GBAVideoRenderer* renderer);
static void GBAVideoDummyRendererReset(struct GBAVideoRenderer* renderer);
static void GBAVideoDummyRendererDeinit(struct GBAVideoRenderer* renderer);
static uint16_t GBAVideoDummyRendererWriteVideoRegister(struct GBAVideoRenderer* renderer, uint32_t address, uint16_t value);
static void GBAVideoDummyRendererWriteVRAM(struct GBAVideoRenderer* renderer, uint32_t address);
static void GBAVideoDummyRendererWritePalette(struct GBAVideoRenderer* renderer, uint32_t address, uint16_t value);
static void GBAVideoDummyRendererWriteOAM(struct GBAVideoRenderer* renderer, uint32_t oam);
static void GBAVideoDummyRendererDrawScanline(struct GBAVideoRenderer* renderer, int y);
@ -47,6 +48,7 @@ static struct GBAVideoRenderer dummyRenderer = {
.reset = GBAVideoDummyRendererReset,
.deinit = GBAVideoDummyRendererDeinit,
.writeVideoRegister = GBAVideoDummyRendererWriteVideoRegister,
.writeVRAM = GBAVideoDummyRendererWriteVRAM,
.writePalette = GBAVideoDummyRendererWritePalette,
.writeOAM = GBAVideoDummyRendererWriteOAM,
.drawScanline = GBAVideoDummyRendererDrawScanline,
@ -222,6 +224,12 @@ static uint16_t GBAVideoDummyRendererWriteVideoRegister(struct GBAVideoRenderer*
return value;
}
static void GBAVideoDummyRendererWriteVRAM(struct GBAVideoRenderer* renderer, uint32_t address) {
UNUSED(renderer);
UNUSED(address);
// Nothing to do
}
static void GBAVideoDummyRendererWritePalette(struct GBAVideoRenderer* renderer, uint32_t address, uint16_t value) {
UNUSED(renderer);
UNUSED(address);

1
src/gba/video.h
View File

@ -162,6 +162,7 @@ struct GBAVideoRenderer {
void (*deinit)(struct GBAVideoRenderer* renderer);
uint16_t (*writeVideoRegister)(struct GBAVideoRenderer* renderer, uint32_t address, uint16_t value);
void (*writeVRAM)(struct GBAVideoRenderer* renderer, uint32_t address);
void (*writePalette)(struct GBAVideoRenderer* renderer, uint32_t address, uint16_t value);
void (*writeOAM)(struct GBAVideoRenderer* renderer, uint32_t oam);
void (*drawScanline)(struct GBAVideoRenderer* renderer, int y);