DS Video: Start hooking up GBA video

include/mgba/internal/ds/renderers/software.h

@@ -19,6 +19,9 @@ struct DSVideoSoftwareRenderer {
 	struct GBAVideoSoftwareRenderer engA;
 	struct GBAVideoSoftwareRenderer engB;
 
+	DSRegisterDISPCNT dispcntA;
+	DSRegisterDISPCNT dispcntB;
+
 	color_t* outputBuffer;
 	int outputBufferStride;
 

include/mgba/internal/ds/video.h

@@ -35,12 +35,32 @@ union DSOAM {
 	uint16_t raw[1024];
 };
 
+DECL_BITFIELD(DSRegisterDISPCNT, uint32_t);
+DECL_BITS(DSRegisterDISPCNT, Mode, 0, 3);
+DECL_BIT(DSRegisterDISPCNT, 3D, 3);
+DECL_BIT(DSRegisterDISPCNT, TileObjMapping, 4);
+DECL_BIT(DSRegisterDISPCNT, BitmapObj2D, 5);
+DECL_BIT(DSRegisterDISPCNT, BitmapObjMapping, 6);
+DECL_BIT(DSRegisterDISPCNT, ForcedBlank, 7);
+DECL_BIT(DSRegisterDISPCNT, Bg0Enable, 8);
+DECL_BIT(DSRegisterDISPCNT, Bg1Enable, 9);
+DECL_BIT(DSRegisterDISPCNT, Bg2Enable, 10);
+DECL_BIT(DSRegisterDISPCNT, Bg3Enable, 11);
+DECL_BIT(DSRegisterDISPCNT, ObjEnable, 12);
+DECL_BIT(DSRegisterDISPCNT, Win0Enable, 13);
+DECL_BIT(DSRegisterDISPCNT, Win1Enable, 14);
+DECL_BIT(DSRegisterDISPCNT, ObjwinEnable, 15);
+DECL_BITS(DSRegisterDISPCNT, DispMode, 16, 2);
+DECL_BITS(DSRegisterDISPCNT, VRAMBlock, 18, 2);
+// TODO
+
 struct DSVideoRenderer {
 	void (*init)(struct DSVideoRenderer* renderer);
 	void (*reset)(struct DSVideoRenderer* renderer);
 	void (*deinit)(struct DSVideoRenderer* renderer);
 
 	uint16_t (*writeVideoRegister)(struct DSVideoRenderer* renderer, uint32_t address, uint16_t value);
+	void (*writePalette)(struct DSVideoRenderer* renderer, uint32_t address, uint16_t value);
 	void (*drawScanline)(struct DSVideoRenderer* renderer, int y);
 	void (*finishFrame)(struct DSVideoRenderer* renderer);
 
@@ -49,6 +69,10 @@ struct DSVideoRenderer {
 
 	uint16_t* palette;
 	uint16_t* vram;
+	uint16_t* vramABG[32];
+	uint16_t* vramAOBJ[32];
+	uint16_t* vramBBG[32];
+	uint16_t* vramBOBJ[32];
 	union DSOAM* oam;
 };
 
@@ -64,6 +88,10 @@ struct DSVideo {
 
 	uint16_t palette[1024];
 	uint16_t* vram;
+	uint16_t* vramABG[32];
+	uint16_t* vramAOBJ[32];
+	uint16_t* vramBBG[32];
+	uint16_t* vramBOBJ[32];
 	union DSOAM oam;
 
 	int32_t frameCounter;
@@ -80,7 +108,7 @@ struct DSCommon;
 void DSVideoWriteDISPSTAT(struct DSCommon* dscore, uint16_t value);
 
 struct DSMemory;
-void DSVideoConfigureVRAM(struct DSMemory* memory, int index, uint8_t value);
+void DSVideoConfigureVRAM(struct DS* ds, int index, uint8_t value);
 
 CXX_GUARD_START
 

src/ds/io.c

@@ -386,9 +386,9 @@ void DS9IOInit(struct DS* ds) {
 }
 
 void DS9IOWrite(struct DS* ds, uint32_t address, uint16_t value) {
-	if (address <= DS9_REG_A_BLDY && (address > DS_REG_VCOUNT || address == DS9_REG_A_DISPCNT_LO || address == DS9_REG_B_DISPCNT_LO)) {
+	if (address <= DS9_REG_A_BLDY && (address > DS_REG_VCOUNT || address == DS9_REG_A_DISPCNT_LO || address == DS9_REG_A_DISPCNT_HI)) {
 		value = ds->video.renderer->writeVideoRegister(ds->video.renderer, address, value);
-	} else if (address >= DS9_REG_B_DISPCNT_LO && address <= DS9_REG_B_BLDY && (address == DS9_REG_B_DISPCNT_LO || address == DS9_REG_B_DISPCNT_LO)) {
+	} else if (address >= DS9_REG_B_DISPCNT_LO && address <= DS9_REG_B_BLDY) {
 		value = ds->video.renderer->writeVideoRegister(ds->video.renderer, address, value);
 	} else {
 		switch (address) {
@@ -397,18 +397,18 @@ void DS9IOWrite(struct DS* ds, uint32_t address, uint16_t value) {
 		case DS9_REG_VRAMCNT_C:
 		case DS9_REG_VRAMCNT_E:
 			value &= 0x9F9F;
-			DSVideoConfigureVRAM(&ds->memory, address - DS9_REG_VRAMCNT_A, value & 0xFF);
+			DSVideoConfigureVRAM(ds, address - DS9_REG_VRAMCNT_A, value & 0xFF);
-			DSVideoConfigureVRAM(&ds->memory, address - DS9_REG_VRAMCNT_A + 1, value >> 8);
+			DSVideoConfigureVRAM(ds, address - DS9_REG_VRAMCNT_A + 1, value >> 8);
 			break;
 		case DS9_REG_VRAMCNT_G:
 			value &= 0x9F03;
-			DSVideoConfigureVRAM(&ds->memory, 6, value & 0xFF);
+			DSVideoConfigureVRAM(ds, 6, value & 0xFF);
 			DSConfigureWRAM(&ds->memory, value >> 8);
 			break;
 		case DS9_REG_VRAMCNT_H:
 			value &= 0x9F9F;
-			DSVideoConfigureVRAM(&ds->memory, 7, value & 0xFF);
+			DSVideoConfigureVRAM(ds, 7, value & 0xFF);
-			DSVideoConfigureVRAM(&ds->memory, 8, value >> 8);
+			DSVideoConfigureVRAM(ds, 8, value >> 8);
 			break;
 
 		case DS9_REG_EXMEMCNT:

src/ds/memory.c

@@ -181,15 +181,15 @@ void DSMemoryReset(struct DS* ds) {
 	ds->ds7.memory.slot1Access = true;
 	ds->ds9.memory.slot1Access = false;
 
-	DSVideoConfigureVRAM(&ds->memory, 0, 0);
+	DSVideoConfigureVRAM(ds, 0, 0);
-	DSVideoConfigureVRAM(&ds->memory, 1, 0);
+	DSVideoConfigureVRAM(ds, 1, 0);
-	DSVideoConfigureVRAM(&ds->memory, 2, 0);
+	DSVideoConfigureVRAM(ds, 2, 0);
-	DSVideoConfigureVRAM(&ds->memory, 3, 0);
+	DSVideoConfigureVRAM(ds, 3, 0);
-	DSVideoConfigureVRAM(&ds->memory, 4, 0);
+	DSVideoConfigureVRAM(ds, 4, 0);
-	DSVideoConfigureVRAM(&ds->memory, 5, 0);
+	DSVideoConfigureVRAM(ds, 5, 0);
-	DSVideoConfigureVRAM(&ds->memory, 6, 0);
+	DSVideoConfigureVRAM(ds, 6, 0);
-	DSVideoConfigureVRAM(&ds->memory, 7, 0);
+	DSVideoConfigureVRAM(ds, 7, 0);
-	DSVideoConfigureVRAM(&ds->memory, 8, 0);
+	DSVideoConfigureVRAM(ds, 8, 0);
 	DSConfigureWRAM(&ds->memory, 3);
 
 	if (!ds->memory.wram || !ds->memory.wram7 || !ds->memory.ram || !ds->memory.itcm || !ds->memory.dtcm) {
@@ -940,6 +940,8 @@ void DS9Store32(struct ARMCore* cpu, uint32_t address, int32_t value, int* cycle
 		break;
 	case DS9_REGION_PALETTE_RAM:
 		STORE_32(value, address & (DS9_SIZE_PALETTE_RAM - 4), ds->video.palette);
+		ds->video.renderer->writePalette(ds->video.renderer, (address & (DS9_SIZE_PALETTE_RAM - 4)) + 2, value >> 16);
+		ds->video.renderer->writePalette(ds->video.renderer, address & (DS9_SIZE_PALETTE_RAM - 4), value);
 		break;
 	case DS_REGION_VRAM: {
 		unsigned mask = _selectVRAM(memory, address >> DS_VRAM_OFFSET);
@@ -1006,6 +1008,7 @@ void DS9Store16(struct ARMCore* cpu, uint32_t address, int16_t value, int* cycle
 		break;
 	case DS9_REGION_PALETTE_RAM:
 		STORE_16(value, address & (DS9_SIZE_PALETTE_RAM - 2), ds->video.palette);
+		ds->video.renderer->writePalette(ds->video.renderer, address & (DS9_SIZE_PALETTE_RAM - 2), value);
 		break;
 	case DS_REGION_VRAM: {
 		unsigned mask = _selectVRAM(memory, address >> DS_VRAM_OFFSET);
@@ -1228,7 +1231,9 @@ uint32_t DS9StoreMultiple(struct ARMCore* cpu, uint32_t address, int mask, enum
 		});
 		break;
 	case DS9_REGION_PALETTE_RAM:
-		STM_LOOP(STORE_32(value, address & (DS9_SIZE_PALETTE_RAM - 1), ds->video.palette));
+		STM_LOOP(STORE_32(value, address & (DS9_SIZE_PALETTE_RAM - 1), ds->video.palette);
+		ds->video.renderer->writePalette(ds->video.renderer, (address & (DS9_SIZE_PALETTE_RAM - 4)) + 2, value >> 16);
+		ds->video.renderer->writePalette(ds->video.renderer, address & (DS9_SIZE_PALETTE_RAM - 4), value));
 		break;
 	case DS_REGION_VRAM:
 		STM_LOOP(unsigned mask = _selectVRAM(memory, address >> DS_VRAM_OFFSET);

src/ds/renderers/software.c

@@ -5,10 +5,14 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include <mgba/internal/ds/renderers/software.h>
 
+#include <mgba/internal/arm/macros.h>
+#include <mgba/internal/ds/io.h>
+
 static void DSVideoSoftwareRendererInit(struct DSVideoRenderer* renderer);
 static void DSVideoSoftwareRendererDeinit(struct DSVideoRenderer* renderer);
 static void DSVideoSoftwareRendererReset(struct DSVideoRenderer* renderer);
 static uint16_t DSVideoSoftwareRendererWriteVideoRegister(struct DSVideoRenderer* renderer, uint32_t address, uint16_t value);
+static void DSVideoSoftwareRendererWritePalette(struct DSVideoRenderer* renderer, uint32_t address, uint16_t value);
 static void DSVideoSoftwareRendererDrawScanline(struct DSVideoRenderer* renderer, int y);
 static void DSVideoSoftwareRendererFinishFrame(struct DSVideoRenderer* renderer);
 static void DSVideoSoftwareRendererGetPixels(struct DSVideoRenderer* renderer, size_t* stride, const void** pixels);
@@ -19,6 +23,7 @@ void DSVideoSoftwareRendererCreate(struct DSVideoSoftwareRenderer* renderer) {
 	renderer->d.reset = DSVideoSoftwareRendererReset;
 	renderer->d.deinit = DSVideoSoftwareRendererDeinit;
 	renderer->d.writeVideoRegister = DSVideoSoftwareRendererWriteVideoRegister;
+	renderer->d.writePalette = DSVideoSoftwareRendererWritePalette;
 	renderer->d.drawScanline = DSVideoSoftwareRendererDrawScanline;
 	renderer->d.finishFrame = DSVideoSoftwareRendererFinishFrame;
 	renderer->d.getPixels = DSVideoSoftwareRendererGetPixels;
@@ -55,17 +60,155 @@ static void DSVideoSoftwareRendererDeinit(struct DSVideoRenderer* renderer) {
 }
 
 static uint16_t DSVideoSoftwareRendererWriteVideoRegister(struct DSVideoRenderer* renderer, uint32_t address, uint16_t value) {
+	struct DSVideoSoftwareRenderer* softwareRenderer = (struct DSVideoSoftwareRenderer*) renderer;
+	if (address <= DS9_REG_A_BLDY) {
+		value = softwareRenderer->engA.d.writeVideoRegister(&softwareRenderer->engA.d, address, value);
+	} else if (address >= DS9_REG_B_DISPCNT_LO && address <= DS9_REG_B_BLDY) {
+		value = softwareRenderer->engB.d.writeVideoRegister(&softwareRenderer->engB.d, address & 0xFF, value);
+	} else {
 		mLOG(DS_VIDEO, STUB, "Stub video register write: %04X:%04X", address, value);
+	}
+	switch (address) {
+	case DS9_REG_A_DISPCNT_LO:
+		softwareRenderer->dispcntA &= 0xFFFF0000;
+		softwareRenderer->dispcntA |= value;
+		break;
+	case DS9_REG_A_DISPCNT_HI:
+		softwareRenderer->dispcntA &= 0x0000FFFF;
+		softwareRenderer->dispcntA |= value << 16;
+		break;
+	case DS9_REG_B_DISPCNT_LO:
+		softwareRenderer->dispcntB &= 0xFFFF0000;
+		softwareRenderer->dispcntB |= value;
+		break;
+	case DS9_REG_B_DISPCNT_HI:
+		softwareRenderer->dispcntB &= 0x0000FFFF;
+		softwareRenderer->dispcntB |= value << 16;
+		break;
+	}
 	return value;
 }
 
+static void DSVideoSoftwareRendererWritePalette(struct DSVideoRenderer* renderer, uint32_t address, uint16_t value) {
+	struct DSVideoSoftwareRenderer* softwareRenderer = (struct DSVideoSoftwareRenderer*) renderer;
+	if (address < 0x200) {
+		softwareRenderer->engA.d.writePalette(&softwareRenderer->engA.d, address & 0x1FF, value);
+	} else {
+		softwareRenderer->engB.d.writePalette(&softwareRenderer->engB.d, address & 0x1FF, value);		
+	}
+}
+
+static void _drawScanlineA(struct DSVideoSoftwareRenderer* softwareRenderer, int y) {
+	memcpy(softwareRenderer->engA.d.vramBG, softwareRenderer->d.vramABG, sizeof(softwareRenderer->engA.d.vramBG));
+	memcpy(softwareRenderer->engA.d.vramOBJ, softwareRenderer->d.vramAOBJ, sizeof(softwareRenderer->engA.d.vramOBJ));
+	color_t* row = &softwareRenderer->engA.outputBuffer[softwareRenderer->outputBufferStride * y];
+
+	int x;
+	switch (DSRegisterDISPCNTGetDispMode(softwareRenderer->dispcntA)) {
+	case 0:
+		for (x = 0; x < DS_VIDEO_HORIZONTAL_PIXELS; ++x) {
+			row[x] = GBA_COLOR_WHITE;
+		}
+		return;
+	case 1:
+		softwareRenderer->engA.d.drawScanline(&softwareRenderer->engA.d, y);
+		return;
+	case 2: {
+		uint16_t* vram = &softwareRenderer->d.vram[0x10000 * DSRegisterDISPCNTGetVRAMBlock(softwareRenderer->dispcntA)];
+		for (x = 0; x < DS_VIDEO_HORIZONTAL_PIXELS; ++x) {
+			color_t color;
+			LOAD_16(color, (x + y * DS_VIDEO_HORIZONTAL_PIXELS) * 2, vram);
+#ifndef COLOR_16_BIT
+			unsigned color32 = 0;
+			color32 |= (color << 9) & 0xF80000;
+			color32 |= (color << 3) & 0xF8;
+			color32 |= (color << 6) & 0xF800;
+			color32 |= (color32 >> 5) & 0x070707;
+			color = color32;
+#elif COLOR_5_6_5
+			uint16_t color16 = 0;
+			color16 |= (color & 0x001F) << 11;
+			color16 |= (color & 0x03E0) << 1;
+			color16 |= (color & 0x7C00) >> 10;
+			color = color16;
+#endif
+			softwareRenderer->row[x] = color;
+		}
+		break;
+	}
+	case 3:
+		break;
+	}
+
+#ifdef COLOR_16_BIT
+#if defined(__ARM_NEON) && !defined(__APPLE__)
+	_to16Bit(row, softwareRenderer->row, DS_VIDEO_HORIZONTAL_PIXELS);
+#else
+	for (x = 0; x < DS_VIDEO_HORIZONTAL_PIXELS; ++x) {
+		row[x] = softwareRenderer->row[x];
+	}
+#endif
+#else
+	memcpy(row, softwareRenderer->row, DS_VIDEO_HORIZONTAL_PIXELS * sizeof(*row));
+#endif
+}
+
+static void _drawScanlineB(struct DSVideoSoftwareRenderer* softwareRenderer, int y) {
+	memcpy(softwareRenderer->engB.d.vramBG, softwareRenderer->d.vramBBG, sizeof(softwareRenderer->engB.d.vramBG));
+	memcpy(softwareRenderer->engB.d.vramOBJ, softwareRenderer->d.vramBOBJ, sizeof(softwareRenderer->engB.d.vramOBJ));
+	color_t* row = &softwareRenderer->engB.outputBuffer[softwareRenderer->outputBufferStride * y];
+
+	int x;
+	switch (DSRegisterDISPCNTGetDispMode(softwareRenderer->dispcntB)) {
+	case 0:
+		for (x = 0; x < DS_VIDEO_HORIZONTAL_PIXELS; ++x) {
+			row[x] = GBA_COLOR_WHITE;
+		}
+		return;
+	case 1:
+		softwareRenderer->engB.d.drawScanline(&softwareRenderer->engB.d, y);
+		return;
+	}
+
+#ifdef COLOR_16_BIT
+#if defined(__ARM_NEON) && !defined(__APPLE__)
+	_to16Bit(row, softwareRenderer->row, DS_VIDEO_HORIZONTAL_PIXELS);
+#else
+	for (x = 0; x < DS_VIDEO_HORIZONTAL_PIXELS; ++x) {
+		row[x] = softwareRenderer->row[x];
+	}
+#endif
+#else
+	memcpy(row, softwareRenderer->row, DS_VIDEO_HORIZONTAL_PIXELS * sizeof(*row));
+#endif
+}
+
 static void DSVideoSoftwareRendererDrawScanline(struct DSVideoRenderer* renderer, int y) {
+	struct DSVideoSoftwareRenderer* softwareRenderer = (struct DSVideoSoftwareRenderer*) renderer;
+	softwareRenderer->engA.outputBuffer = softwareRenderer->outputBuffer;
+	softwareRenderer->engB.outputBuffer = &softwareRenderer->outputBuffer[softwareRenderer->outputBufferStride * DS_VIDEO_VERTICAL_PIXELS];
+	softwareRenderer->engA.outputBufferStride = softwareRenderer->outputBufferStride;
+	softwareRenderer->engB.outputBufferStride = softwareRenderer->outputBufferStride;
+
+
+	_drawScanlineA(softwareRenderer, y);
+	_drawScanlineB(softwareRenderer, y);
 }
 
 static void DSVideoSoftwareRendererFinishFrame(struct DSVideoRenderer* renderer) {
+	struct DSVideoSoftwareRenderer* softwareRenderer = (struct DSVideoSoftwareRenderer*) renderer;
+	softwareRenderer->engA.d.finishFrame(&softwareRenderer->engA.d);
+	softwareRenderer->engB.d.finishFrame(&softwareRenderer->engB.d);
 }
 
 static void DSVideoSoftwareRendererGetPixels(struct DSVideoRenderer* renderer, size_t* stride, const void** pixels) {
+	struct DSVideoSoftwareRenderer* softwareRenderer = (struct DSVideoSoftwareRenderer*) renderer;
+#ifdef COLOR_16_BIT
+#error Not yet supported
+#else
+	*stride = softwareRenderer->outputBufferStride;
+	*pixels = softwareRenderer->outputBuffer;
+#endif
 }
 
 static void DSVideoSoftwareRendererPutPixels(struct DSVideoRenderer* renderer, size_t stride, const void* pixels) {

src/ds/video.c

@@ -18,6 +18,7 @@ static void DSVideoDummyRendererInit(struct DSVideoRenderer* renderer);
 static void DSVideoDummyRendererReset(struct DSVideoRenderer* renderer);
 static void DSVideoDummyRendererDeinit(struct DSVideoRenderer* renderer);
 static uint16_t DSVideoDummyRendererWriteVideoRegister(struct DSVideoRenderer* renderer, uint32_t address, uint16_t value);
+static void DSVideoDummyRendererWritePalette(struct DSVideoRenderer* renderer, uint32_t address, uint16_t value);
 static void DSVideoDummyRendererDrawScanline(struct DSVideoRenderer* renderer, int y);
 static void DSVideoDummyRendererFinishFrame(struct DSVideoRenderer* renderer);
 static void DSVideoDummyRendererGetPixels(struct DSVideoRenderer* renderer, size_t* stride, const void** pixels);
@@ -102,6 +103,7 @@ static struct DSVideoRenderer dummyRenderer = {
 	.reset = DSVideoDummyRendererReset,
 	.deinit = DSVideoDummyRendererDeinit,
 	.writeVideoRegister = DSVideoDummyRendererWriteVideoRegister,
+	.writePalette = DSVideoDummyRendererWritePalette,
 	.drawScanline = DSVideoDummyRendererDrawScanline,
 	.finishFrame = DSVideoDummyRendererFinishFrame,
 	.getPixels = DSVideoDummyRendererGetPixels,
@@ -160,6 +162,10 @@ void DSVideoAssociateRenderer(struct DSVideo* video, struct DSVideoRenderer* ren
 	video->renderer = renderer;
 	renderer->palette = video->palette;
 	renderer->vram = video->vram;
+	memcpy(renderer->vramABG, video->vramABG, sizeof(renderer->vramABG));
+	memcpy(renderer->vramAOBJ, video->vramAOBJ, sizeof(renderer->vramAOBJ));
+	memcpy(renderer->vramBBG, video->vramBBG, sizeof(renderer->vramBBG));
+	memcpy(renderer->vramBOBJ, video->vramBOBJ, sizeof(renderer->vramBOBJ));
 	renderer->oam = &video->oam;
 	video->renderer->init(video->renderer);
 }
@@ -292,7 +298,8 @@ void DSVideoWriteDISPSTAT(struct DSCommon* dscore, uint16_t value) {
 	// TODO: Does a VCounter IRQ trigger on write?
 }
 
-void DSVideoConfigureVRAM(struct DSMemory* memory, int index, uint8_t value) {
+void DSVideoConfigureVRAM(struct DS* ds, int index, uint8_t value) {
+	struct DSMemory* memory = &ds->memory;
 	struct DSVRAMBankInfo info = _vramInfo[index][value & 0x7];
 	memset(&memory->vramMirror[index], 0, sizeof(memory->vramMirror[index]));
 	memset(&memory->vramMode[index], 0, sizeof(memory->vramMode[index]));
@@ -308,6 +315,32 @@ void DSVideoConfigureVRAM(struct DSMemory* memory, int index, uint8_t value) {
 			memory->vramMirror[index][i + j] = 1 << index;
 		}
 	}
+	switch (info.mode) {
+	case 0:
+		for (i = 0; i < size; ++i) {
+			ds->video.vramABG[offset + i] = &memory->vramBank[index][i << (DS_VRAM_OFFSET - 1)];
+			ds->video.renderer->vramABG[offset + i] = ds->video.vramABG[offset + i];
+		}
+		break;
+	case 1:
+		for (i = 0; i < size; ++i) {
+			ds->video.vramBBG[offset + i] = &memory->vramBank[index][i << (DS_VRAM_OFFSET - 1)];
+			ds->video.renderer->vramBBG[offset + i] = ds->video.vramBBG[offset + i];
+		}
+		break;
+	case 2:
+		for (i = 0; i < size; ++i) {
+			ds->video.vramAOBJ[offset + i] = &memory->vramBank[index][i << (DS_VRAM_OFFSET - 1)];
+			ds->video.renderer->vramAOBJ[offset + i] = ds->video.vramAOBJ[offset + i];
+		}
+		break;
+	case 3:
+		for (i = 0; i < size; ++i) {
+			ds->video.vramBOBJ[offset + i] = &memory->vramBank[index][i << (DS_VRAM_OFFSET - 1)];
+			ds->video.renderer->vramBOBJ[offset + i] = ds->video.vramBOBJ[offset + i];
+		}
+		break;
+	}
 }
 
 static void DSVideoDummyRendererInit(struct DSVideoRenderer* renderer) {
@@ -330,6 +363,12 @@ static uint16_t DSVideoDummyRendererWriteVideoRegister(struct DSVideoRenderer* r
 	return value;
 }
 
+static void DSVideoDummyRendererWritePalette(struct DSVideoRenderer* renderer, uint32_t address, uint16_t value) {
+	UNUSED(value);
+	UNUSED(address);
+	UNUSED(value);
+}
+
 static void DSVideoDummyRendererDrawScanline(struct DSVideoRenderer* renderer, int y) {
 	UNUSED(renderer);
 	UNUSED(y);

src/platform/test/perf-main.c

@@ -108,7 +108,7 @@ int main(int argc, char** argv) {
 		free(perfOpts.savestate);
 	}
 
-	_outputBuffer = malloc(256 * 256 * 4);
+	_outputBuffer = malloc(256 * 384 * 4);
 	if (perfOpts.csv) {
 		puts("game_code,frames,duration,renderer");
 	}