分析代码

tools/cmdlist/from/main.c

@@ -0,0 +1,199 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <3ds.h>
+#include <citro3d.h>
+#include <string.h>
+#include "vshader_shbin.h"
+
+
+#define CLEAR_COLOR (0x68B0D8FF)
+
+#define DISPLAY_TRANSFER_FLAGS \
+	(GX_TRANSFER_FLIP_VERT(0) | GX_TRANSFER_OUT_TILED(0) | GX_TRANSFER_RAW_COPY(0) | \
+	GX_TRANSFER_IN_FORMAT(GX_TRANSFER_FMT_RGB8) | GX_TRANSFER_OUT_FORMAT(GX_TRANSFER_FMT_RGB8) | \
+	GX_TRANSFER_SCALING(GX_TRANSFER_SCALE_NO))
+
+
+static DVLB_s* vshader_dvlb;
+static shaderProgram_s program;
+static int uLoc_projection;
+static C3D_Mtx projection;
+static C3D_Tex maintex;
+
+
+
+static void sceneInit(void)
+{
+	// Load the vertex shader, create a shader program and bind it
+	vshader_dvlb = DVLB_ParseFile((u32*)vshader_shbin, vshader_shbin_size);
+	shaderProgramInit(&program);
+	shaderProgramSetVsh(&program, &vshader_dvlb->DVLE[0]);
+	C3D_BindProgram(&program);
+
+	// Get the location of the uniforms
+	uLoc_projection = shaderInstanceGetUniformLocation(program.vertexShader, "projection");
+
+	// Configure attributes for use with the vertex shader
+	// Attribute format and element count are ignored in immediate mode
+	C3D_AttrInfo* attrInfo = C3D_GetAttrInfo();
+	AttrInfo_Init(attrInfo);
+	AttrInfo_AddLoader(attrInfo, 0, GPU_FLOAT, 3); // v0=position xyz
+	AttrInfo_AddLoader(attrInfo, 1, GPU_FLOAT, 2); // v1=texcoord xy
+
+	// Compute the projection matrix
+	Mtx_OrthoTilt(&projection, 0.0, 400.0, 0.0, 240.0, 0.0, 1.0, true);
+
+	FILE *f = fopen("sdmc:/rgb_gba_test.bin", "rb");
+	u8 *const data = linearAlloc(256 * 256 * 3);
+	u8 *dst = data;
+	for(u32 i = 0; i < 160; i++)
+	{
+		fread(dst, 240 * 3, 1, f);
+		dst += 256 * 3;
+	}
+	fclose(f);
+	GSPGPU_FlushDataCache(data, 256 * 256 * 3);
+
+	C3D_TexInit(&maintex, 256, 256, GPU_RGB8);
+	const u32 flags = (GX_TRANSFER_FLIP_VERT(0) | GX_TRANSFER_OUT_TILED(1) | GX_TRANSFER_RAW_COPY(0) |
+		GX_TRANSFER_IN_FORMAT(GX_TRANSFER_FMT_RGB8) | GX_TRANSFER_OUT_FORMAT(GX_TRANSFER_FMT_RGB8) |
+		GX_TRANSFER_SCALING(GX_TRANSFER_SCALE_NO));
+	C3D_SyncDisplayTransfer((u32*)data, GX_BUFFER_DIM(256, 256), (u32*)maintex.data, GX_BUFFER_DIM(256, 256), flags);
+	linearFree(data);
+
+	C3D_TexSetFilter(&maintex, GPU_LINEAR, GPU_NEAREST);
+	//C3D_TexSetWrap(&maintex, GPU_CLAMP_TO_EDGE, GPU_CLAMP_TO_EDGE);
+	C3D_TexBind(0, &maintex);
+
+	// Configure the first fragment shading substage to just pass through the vertex color
+	// See https://www.opengl.org/sdk/docs/man2/xhtml/glTexEnv.xml for more insight
+	C3D_TexEnv* env = C3D_GetTexEnv(0);
+	C3D_TexEnvInit(env);
+	C3D_TexEnvSrc(env, C3D_Both, GPU_TEXTURE0, 0, 0);
+	C3D_TexEnvFunc(env, C3D_Both, GPU_REPLACE);
+	//C3D_TexEnvScale(env, C3D_Both, GPU_TEVSCALE_2);
+
+	C3D_TexEnv* env1 = C3D_GetTexEnv(1);
+	C3D_TexEnvInit(env1);
+	C3D_TexEnvSrc(env1, C3D_Both, GPU_PREVIOUS, GPU_PREVIOUS, 0);
+	C3D_TexEnvFunc(env1, C3D_Both, GPU_MODULATE);
+}
+
+static void sceneRender(void)
+{
+	// Update the uniforms
+	C3D_FVUnifMtx4x4(GPU_VERTEX_SHADER, uLoc_projection, &projection);
+// with scake=1.5, then xShift=20
+// 
+// with scake=1.0, then xShift=80, the reason is 256 is change to 512
+// 80 0 0.5 1
+// 0 0.6875 0 0		--> 0.6875 = 1-80/256
+// 320 0 0.5 1
+// 0.46875 0.6875 0 0    --> 120/256 1-80/256
+// 80 160 0.5 1
+// 0 1 0 0
+// 320 160 0.5 1
+// 0.46875 1 0 0
+	// Draw a textured quad directly
+	C3D_ImmDrawBegin(GPU_TRIANGLE_STRIP);
+		const float scale = 1.5f;
+		const float xShift = (400.0f - (240.0f * scale)) / 2.0f;
+
+		// Bottom left corner.
+		C3D_ImmSendAttrib(xShift, 0.0f, 0.5f, 1.0f);                   // v0=position xyz
+		C3D_ImmSendAttrib(0.0f, 1.0f - (160.0f / 256.0f), 0.0f, 0.0f); // v1=texcoord xy
+
+		// Bottom right corner.
+		C3D_ImmSendAttrib(240.0f * scale + xShift, 0.0f, 0.5f, 1.0f);
+		C3D_ImmSendAttrib(1.0f * 240.0f / 256.0f, 1.0f - (160.0f / 256.0f), 0.0f, 0.0f);
+
+		// Top left corner.
+		C3D_ImmSendAttrib(xShift, 160.0f * scale, 0.5f, 1.0f);
+		C3D_ImmSendAttrib(0.0f, 1.0f, 0.0f, 0.0f);
+
+		// Top right corner.
+		C3D_ImmSendAttrib(240.0f * scale + xShift, 160.0f * scale, 0.5f, 1.0f);
+		C3D_ImmSendAttrib(1.0f * 240.0f / 256.0f, 1.0f, 0.0f, 0.0f);
+	C3D_ImmDrawEnd();
+}
+
+static void sceneExit(void)
+{
+	// Free the shader program
+	shaderProgramFree(&program);
+	DVLB_Free(vshader_dvlb);
+	C3D_TexDelete(&maintex);
+}
+
+int main()
+{
+	// Initialize graphics
+	gfxInit(GSP_BGR8_OES, GSP_RGB565_OES, false);
+	C3D_Init(C3D_DEFAULT_CMDBUF_SIZE);
+
+	// Initialize the render target
+	C3D_RenderTarget* target = C3D_RenderTargetCreate(240, 400, GPU_RB_RGB8, GPU_RB_DEPTH24_STENCIL8);
+	C3D_StencilTest(false, GPU_ALWAYS, 0, 0, 0);
+	C3D_EarlyDepthTest(false, GPU_EARLYDEPTH_GEQUAL, 0);
+	C3D_DepthTest(false, GPU_ALWAYS, GPU_WRITE_COLOR);
+	C3D_AlphaTest(false, GPU_ALWAYS, 0);
+	C3D_RenderTargetSetOutput(target, GFX_TOP, GFX_LEFT, DISPLAY_TRANSFER_FLAGS);
+
+	// Initialize the scene
+	sceneInit();
+
+	// Main loop
+	while (aptMainLoop())
+	{
+		hidScanInput();
+
+		// Respond to user input
+		u32 kDown = hidKeysDown();
+		if (kDown & KEY_START)
+			break; // break in order to return to hbmenu
+
+		// Render the scene
+		C3D_FrameBegin(C3D_FRAME_SYNCDRAW);
+			C3D_RenderTargetClear(target, C3D_CLEAR_ALL, CLEAR_COLOR, 0);
+			C3D_FrameDrawOn(target);
+			sceneRender();
+		C3D_FrameEnd(0);
+	}
+
+	// Deinitialize the scene
+	sceneExit();
+
+	C3D_RenderTargetDelete(target);
+
+	// Deinitialize graphics
+	C3D_Fini();
+	gfxExit();
+	return 0;
+}
+
+
+// -Wl,-wrap=GX_ProcessCommandList
+Result __wrap_GX_ProcessCommandList(u32* buf0a, u32 buf0s, u8 flags)
+{
+	static u32 dumped = 0;
+
+	if(dumped == 0)
+	{
+		dumped++;
+
+		FILE *f = fopen("sdmc:/first_cmdlist.bin", "wb");
+		fwrite(buf0a, buf0s, 1, f);
+		fclose(f);
+	}
+	else if(dumped == 1)
+	{
+		dumped++;
+
+		FILE *f = fopen("sdmc:/second_cmdlist.bin", "wb");
+		fwrite(buf0a, buf0s, 1, f);
+		fclose(f);
+	}
+
+	return __real_GX_ProcessCommandList(buf0a, buf0s, flags);
+}

tools/cmdlist/from/vshader.v.pica

@@ -0,0 +1,35 @@
+; Example PICA200 vertex shader
+
+; Uniforms
+.fvec projection[4]
+
+; Constants
+.constf myconst(0.0, 1.0, -1.0, 0.5)
+.alias  zeros myconst.xxxx ; Vector full of zeros
+.alias  ones  myconst.yyyy ; Vector full of ones
+
+; Outputs
+.out outpos position
+.out outtc0 texcoord0
+
+; Inputs (defined as aliases for convenience)
+.alias inpos v0
+.alias intex v1
+
+.proc main
+	; Force the w component of inpos to be 1.0
+	mov r0.xyz, inpos
+	mov r0.w,   ones
+
+	; outpos = projectionMatrix * inpos
+	dp4 outpos.x, projection[0], r0
+	dp4 outpos.y, projection[1], r0
+	dp4 outpos.z, projection[2], r0
+	dp4 outpos.w, projection[3], r0
+
+	; outtc0 = intex
+	mov outtc0, intex
+
+	; We're finished
+	end
+.end

tools/cmdlist/parse.js

@@ -0,0 +1,28 @@
+function *read_one_command( words )
+{
+    let pos = 0;
+    while( pos < words.length )
+    {
+        let header = words[pos+1];
+        let [reg, size] = read_header(header);
+        let param = [words[0]]
+        
+        let idx = pos+2;
+        while( size-- > 0 ) param.push( words[idx++] );
+        pos += 2 + ( (size%2) ? size+1 : size );
+        yield {reg, param}
+    }
+}
+
+function *parse( bytes )
+{
+    const words = new Uint32Array( bytes );
+    let output = [];
+    while( 1 ){
+        let command = yield read_one_command( words );
+        if( command == null ) break;
+        else output.push( command );
+    }
+    return output;
+}
+