research: Ghidra decompilation of SetupParticleRendering (326 lines)
10% of frame time, ~275 calls/frame, ~5800 cyc/call. Builds identity matrices (32 stores of dead work), does 1-5 matmul calls, copies to g_worldMatrix global. Translation matrix is identity+offset — matmul chain can be simplified to direct computation.
This commit is contained in:
MarcelineVQ
@@ -0,0 +1,326 @@
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/* WARNING: Globals starting with '_' overlap smaller symbols at the same address */
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/* Setting prototype: void __thiscall SetupParticleRendering(ParticleSystemRenderer *this, float10
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*param_1) */
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void __thiscall SetupParticleRendering(ParticleSystemRenderer *this,float10 *viewMatrix)
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{
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float *pfVar1;
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uint uVar2;
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Matrix4x4 *pMVar3;
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Matrix4x4 *pMVar4;
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uint uVar5;
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uint uVar6;
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char *pcVar7;
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undefined *puVar8;
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undefined *puVar9;
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undefined *puVar10;
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float fVar11;
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undefined **ppuVar12;
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int iVar13;
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int iVar14;
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undefined **ppuVar15;
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float10 fVar16;
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Matrix4x4 tempMatrix1;
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undefined *local_fc;
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undefined *local_f8;
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undefined *local_f4;
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undefined *local_f0;
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undefined *local_ec;
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undefined *local_e8;
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undefined *local_e4;
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undefined *local_e0;
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undefined *local_dc;
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Matrix4x4 vertexShaderMatrix;
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Matrix4x4 translationMatrix;
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Matrix4x4 identityMatrix;
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undefined *local_18;
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undefined *local_14;
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undefined *local_10;
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undefined *local_c;
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undefined *local_8;
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vertexShaderMatrix.m00 = 1.0;
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vertexShaderMatrix.m01 = 0.0;
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vertexShaderMatrix.m02 = 0.0;
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vertexShaderMatrix.m03 = 0.0;
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vertexShaderMatrix.m10 = 0.0;
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vertexShaderMatrix.m11 = 1.0;
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vertexShaderMatrix.m12 = 0.0;
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vertexShaderMatrix.m13 = 0.0;
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vertexShaderMatrix.m20 = 0.0;
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vertexShaderMatrix.m21 = 0.0;
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vertexShaderMatrix.m22 = 1.0;
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vertexShaderMatrix.m23 = 0.0;
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vertexShaderMatrix.m30 = 0.0;
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vertexShaderMatrix.m31 = 0.0;
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vertexShaderMatrix.m32 = 0.0;
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vertexShaderMatrix.m33 = 1.0;
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identityMatrix.m00 = 1.0;
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identityMatrix.m01 = 0.0;
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identityMatrix.m02 = 0.0;
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identityMatrix.m03 = 0.0;
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identityMatrix.m10 = 0.0;
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identityMatrix.m11 = 1.0;
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identityMatrix.m12 = 0.0;
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identityMatrix.m13 = 0.0;
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identityMatrix.m20 = 0.0;
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identityMatrix.m21 = 0.0;
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identityMatrix.m22 = 1.0;
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identityMatrix.m23 = 0.0;
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identityMatrix.m30 = 0.0;
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identityMatrix.m31 = 0.0;
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identityMatrix.m32 = 0.0;
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identityMatrix.m33 = 1.0;
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SetTransformMatrix((undefined **)&identityMatrix);
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SetVertexShader((undefined *)&vertexShaderMatrix);
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translationMatrix.m30 = -this->colorPaletteArray[3].colorDeltaB_actual;
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translationMatrix.m31 = -*(float *)&this->colorPaletteArray[3].colorDeltaB_prefix;
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uVar5._0_2_ = this->colorPaletteArray[2].padding_06;
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uVar5._2_2_ = this->colorPaletteArray[2].texCoordDelta2_prefix;
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translationMatrix.m32 = -*(float *)((int)&this->colorPaletteArray[3].colorDeltaB + 2);
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translationMatrix.m00 = 1.0;
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translationMatrix.m01 = 0.0;
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translationMatrix.m02 = 0.0;
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translationMatrix.m03 = 0.0;
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translationMatrix.m10 = 0.0;
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translationMatrix.m11 = 1.0;
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translationMatrix.m12 = 0.0;
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translationMatrix.m13 = 0.0;
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translationMatrix.m20 = 0.0;
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translationMatrix.m21 = 0.0;
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translationMatrix.m22 = 1.0;
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translationMatrix.m23 = 0.0;
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translationMatrix.m33 = 1.0;
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local_10 = (undefined *)translationMatrix.m30;
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local_c = (undefined *)translationMatrix.m31;
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local_8 = (undefined *)translationMatrix.m32;
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if ((uVar5 & 0x100) == 0) {
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if (viewMatrix == (float10 *)0x0) {
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pMVar4 = multiplyMatrix4x4_SSE_Optimized(&tempMatrix1,&translationMatrix,&identityMatrix);
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ppuVar12 = &g_worldMatrix;
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iVar13 = 8;
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do {
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*ppuVar12 = (undefined *)pMVar4->m00;
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ppuVar12[1] = (undefined *)pMVar4->m01;
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ppuVar12 = ppuVar12 + 2;
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pMVar4 = (Matrix4x4 *)&pMVar4->m02;
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iVar13 = iVar13 + -1;
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} while (iVar13 != 0);
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}
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else {
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pMVar4 = &identityMatrix;
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pMVar3 = multiplyMatrix4x4_SSE_Optimized
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(&tempMatrix1,(Matrix4x4 *)viewMatrix,&translationMatrix);
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pMVar4 = multiplyMatrix4x4_SSE_Optimized((Matrix4x4 *)&stack0xfffffee8,pMVar3,pMVar4);
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ppuVar12 = &g_worldMatrix;
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iVar13 = 8;
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do {
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*ppuVar12 = (undefined *)pMVar4->m00;
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ppuVar12[1] = (undefined *)pMVar4->m01;
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ppuVar12 = ppuVar12 + 2;
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pMVar4 = (Matrix4x4 *)&pMVar4->m02;
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iVar13 = iVar13 + -1;
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} while (iVar13 != 0);
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}
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}
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else {
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pMVar4 = &identityMatrix;
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pMVar3 = multiplyMatrix4x4_SSE_Optimized
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((Matrix4x4 *)&stack0xfffffee8,
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(Matrix4x4 *)(this->colorPaletteArray[2].final_padding + 6),
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&translationMatrix);
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pMVar4 = multiplyMatrix4x4_SSE_Optimized(&tempMatrix1,pMVar3,pMVar4);
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ppuVar12 = &g_worldMatrix;
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iVar13 = 8;
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do {
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*ppuVar12 = (undefined *)pMVar4->m00;
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ppuVar12[1] = (undefined *)pMVar4->m01;
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ppuVar12 = ppuVar12 + 2;
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pMVar4 = (Matrix4x4 *)&pMVar4->m02;
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iVar13 = iVar13 + -1;
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} while (iVar13 != 0);
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}
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g_lightDirectionX = (undefined *)identityMatrix.m20;
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g_lightDirectionY = (undefined *)identityMatrix.m21;
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g_lightDirectionZ = (undefined *)identityMatrix.m22;
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uVar6._0_2_ = this->colorPaletteArray[2].padding_06;
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uVar6._2_2_ = this->colorPaletteArray[2].texCoordDelta2_prefix;
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if ((uVar6 & 0x2000) != 0) {
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if ((g_renderingInitFlags & 1) == 0) {
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g_renderingInitFlags = g_renderingInitFlags | 1;
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g_spriteVertexTemplate = (undefined *)0xbf800000;
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g_spriteVertex1_X = (undefined *)0x3f800000;
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g_spriteVertex1_Y = (undefined *)0x0;
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g_spriteVertex2_X = (undefined *)0xbf800000;
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g_spriteVertex2_Y = (undefined *)0xbf800000;
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g_spriteVertex2_Z = (undefined *)0x0;
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_g_spriteVertex3_X = 0x3f800000;
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_g_spriteVertex3_Y = 0x3f800000;
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_g_spriteVertex3_Z = 0;
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_g_spriteVertex4_X = 0x3f800000;
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_g_spriteVertex4_Y = 0xbf800000;
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_g_spriteVertex4_Z = 0;
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validateMemoryOperation((int *)&g_spriteTemplateValidator);
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}
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if ((g_renderingInitFlags & 2) == 0) {
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g_renderingInitFlags = g_renderingInitFlags | 2;
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g_billboardMatrix = (undefined *)0x3f800000;
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g_billboardMatrix_M01 = (undefined *)0x0;
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g_billboardMatrix_M02 = (undefined *)0x0;
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g_billboardMatrix_M03 = (undefined *)0x0;
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_g_billboardMatrix_M10 = 0.0;
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_g_billboardMatrix_M11 = 1.0;
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_g_billboardMatrix_M12 = 0.0;
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_g_billboardMatrix_M13 = 0;
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g_billboardMatrix_M20 = (undefined *)0x0;
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g_billboardMatrix_M21 = (undefined *)0x0;
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g_billboardMatrix_M22 = (undefined *)0x3f800000;
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_g_billboardMatrix_M23 = 0;
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_g_billboardMatrix_M30 = 0;
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_g_billboardMatrix_M31 = 0;
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_g_billboardMatrix_M32 = 0;
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_g_billboardMatrix_M33 = 0x3f800000;
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validateMemoryOperation((int *)&g_billboardMatrixValidator);
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}
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uVar2._0_2_ = this->colorPaletteArray[2].padding_06;
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uVar2._2_2_ = this->colorPaletteArray[2].texCoordDelta2_prefix;
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if ((uVar2 & 0x100) == 0) {
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pMVar4 = multiplyMatrix4x4_SSE_Optimized
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(&tempMatrix1,(Matrix4x4 *)(this->colorPaletteArray[2].final_padding + 6),
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(Matrix4x4 *)&g_worldMatrix);
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ppuVar12 = &g_billboardMatrix;
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iVar13 = 8;
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do {
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*ppuVar12 = (undefined *)pMVar4->m00;
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ppuVar12[1] = (undefined *)pMVar4->m01;
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ppuVar12 = ppuVar12 + 2;
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pMVar4 = (Matrix4x4 *)&pMVar4->m02;
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iVar13 = iVar13 + -1;
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} while (iVar13 != 0);
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}
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else {
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ppuVar12 = &g_worldMatrix;
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ppuVar15 = &g_billboardMatrix;
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for (iVar13 = 0x10; iVar13 != 0; iVar13 = iVar13 + -1) {
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*ppuVar15 = *ppuVar12;
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ppuVar12 = ppuVar12 + 1;
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ppuVar15 = ppuVar15 + 1;
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}
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}
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uVar5 = 0;
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do {
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uVar6 = uVar5 + 0xc;
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local_10 = (undefined *)
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((float)g_billboardMatrix * *(float *)((int)&g_spriteVertexTemplate + uVar5) +
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(float)g_billboardMatrix_M20 * *(float *)((int)&g_spriteVertex1_Y + uVar5) +
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_g_billboardMatrix_M10 * *(float *)((int)&g_spriteVertex1_X + uVar5));
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fVar11 = _g_billboardMatrix_M11 * *(float *)((int)&g_spriteVertex1_X + uVar5);
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*(undefined **)((int)&g_transformedVertices + uVar5) = local_10;
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local_c = (undefined *)
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((float)g_billboardMatrix_M21 * *(float *)((int)&g_spriteVertex1_Y + uVar5) +
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(float)g_billboardMatrix_M01 * *(float *)((int)&g_spriteVertexTemplate + uVar5) +
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fVar11);
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fVar11 = _g_billboardMatrix_M12 * *(float *)((int)&g_spriteVertex1_X + uVar5);
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*(undefined **)((int)&g_transformedVertex1_Y + uVar5) = local_c;
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local_8 = (undefined *)
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((float)g_billboardMatrix_M02 * *(float *)((int)&g_spriteVertexTemplate + uVar5) +
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(float)g_billboardMatrix_M22 * *(float *)((int)&g_spriteVertex1_Y + uVar5) + fVar11)
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;
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*(undefined **)((int)&g_transformedVertex1_Z + uVar5) = local_8;
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uVar5 = uVar6;
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} while (uVar6 < 0x30);
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pfVar1 = (float *)((int)&this->colorPaletteArray[4].renderFlags + 2);
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*pfVar1 = (float)g_billboardMatrix_M20;
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*(undefined **)&this->colorPaletteArray[4].colorDeltaG_prefix = g_billboardMatrix_M21;
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*(undefined **)((int)&this->colorPaletteArray[4].colorDeltaB_field + 2) = g_billboardMatrix_M22;
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fVar16 = (float10)emptyFunction();
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if ((float10)_DAT_008029d4 <= ABS(SQRT(fVar16))) {
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fVar16 = (float10)StaticFloat1_0 / SQRT(fVar16);
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*pfVar1 = (float)(fVar16 * (float10)*pfVar1);
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*(float *)&this->colorPaletteArray[4].colorDeltaG_prefix =
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(float)(fVar16 * (float10)*(float *)&this->colorPaletteArray[4].colorDeltaG_prefix);
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*(float *)((int)&this->colorPaletteArray[4].colorDeltaB_field + 2) =
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(float)(fVar16 * (float10)*(float *)((int)&this->colorPaletteArray[4].colorDeltaB_field +
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2));
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}
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}
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BeginRender();
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pcVar7 = GetTextureBuffer(*(int *)(this->colorPaletteArray[1].final_padding + 10),0,(int *)0x0);
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if (pcVar7 == (char *)0x0) goto LAB_007b44c4;
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SetTexture(0x17,pcVar7);
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g_maxParticleSprites = (undefined *)(0x4000 / ZEXT48(this->skeletonAttachmentPtr));
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puVar8 = *(undefined **)((int)&this->maxModelParticleSlots + 2);
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if (puVar8 <= g_maxParticleSprites) {
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g_maxParticleSprites = puVar8;
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}
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iVar14 = (-(uint)((*(uint *)(this->colorPaletteArray[1].padding_3E_43 + 4) & 1) != 0) & 0xfffffffc
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) + 8;
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puVar8 = GetDataPointerByIndex(iVar14);
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puVar9 = (undefined *)
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CreateVertexBuffer(0,(int)puVar8,
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(int)this->skeletonAttachmentPtr * (int)g_maxParticleSprites);
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iVar13 = LockVertexBuffer(puVar9);
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local_dc = (undefined *)0x0;
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puVar10 = GetMatrixElementPointer(iVar14,0);
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local_fc = puVar10 + iVar13;
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local_ec = puVar8;
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if ((this->colorPaletteArray[1].padding_3E_43[4] & 1) == 0) {
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if ((g_renderingInitFlags & 4) == 0) {
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g_renderingInitFlags = g_renderingInitFlags | 4;
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_g_defaultNormalX = 0;
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_DAT_00cf5864 = 0;
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_DAT_00cf5868 = 0;
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validateMemoryOperation((int *)&g_normalVectorValidator);
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}
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local_f8 = &g_defaultNormalX;
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local_e8 = (undefined *)0x0;
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}
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else {
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puVar10 = GetMatrixElementPointer(iVar14,3);
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local_f8 = puVar10 + iVar13;
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local_e8 = puVar8;
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}
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puVar10 = GetMatrixElementPointer(iVar14,4);
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local_f4 = puVar10 + iVar13;
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local_e4 = puVar8;
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puVar10 = GetMatrixElementPointer(iVar14,5);
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local_f0 = puVar10 + iVar13;
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local_e0 = puVar8;
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RenderParticleSystemSorted(this,(float **)&local_fc);
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UnlockVertexBuffer((int)puVar9,(undefined *)0x0);
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DrawPrimitive((int)puVar9,iVar14);
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if (this->field_0x28 == 6) {
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puVar9 = IsObjectActiveAndValid((int)g_indexBuffer6);
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puVar8 = g_indexBuffer6;
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if (puVar9 == (undefined *)0x0) {
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BuildIndexBuffer((int)g_indexBuffer6,this->field_0x28);
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puVar8 = g_indexBuffer6;
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}
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LAB_007b4486:
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SetStreamSource((int)puVar8);
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}
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else if (this->field_0x28 == 0xc) {
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puVar9 = IsObjectActiveAndValid((int)g_indexBuffer12);
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puVar8 = g_indexBuffer12;
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if (puVar9 == (undefined *)0x0) {
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BuildIndexBuffer((int)g_indexBuffer12,this->field_0x28);
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puVar8 = g_indexBuffer12;
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}
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goto LAB_007b4486;
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}
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fVar11 = (float)(this->rendersPerChildSystem * this->field_0x28);
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this->calculatedTextureScaleY = fVar11;
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local_10 = (undefined *)0x0;
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local_c = (undefined *)((uint)fVar11 & 0xffff);
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local_14 = (undefined *)0x3;
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local_8 = (undefined *)CONCAT22(local_8._2_2_,(short)local_dc + -1);
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CallGfxDeviceMethod_Wrapper((undefined *)&local_14,(undefined *)0x1);
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LAB_007b44c4:
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EndRender();
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SetVertexShader((undefined *)&identityMatrix);
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return;
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}
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