spritequad: recreation + analysis (disabled, no improvement)
Faithful recreation of RenderSpriteQuads (0x5A0F50) with hoisted invariant division and inlined DisplayMode_CalculateOffset. No measurable improvement — cost is dominated by getAdapterInfo (7 sub-calls to D3D device per invocation × 3203 calls/frame) and DrawPrimitive/DrawIndexedPrimitive virtual dispatch. Added decompilation and assembly dumps for future reference.
This commit is contained in:
MarcelineVQ
@@ -0,0 +1,79 @@
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// RenderSpriteQuads @ 0x5A0F50
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// Disassembled from WoW 1.12.1 build 5875
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005A0F50 55 push ebp
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005A0F51 8BEC mov ebp,esp
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005A0F53 51 push ecx
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005A0F54 53 push ebx
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005A0F55 56 push esi
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005A0F56 57 push edi
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005A0F57 8BF9 mov edi,ecx
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005A0F59 8B872C0F0000 mov eax,[edi+0xf2c]
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005A0F5F 85C0 test eax,eax
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005A0F61 0F8481010000 jz 0x5a10e8
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005A0F67 8B9FD8270000 mov ebx,[edi+0x27d8]
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005A0F6D 8D87A4270000 lea eax,[edi+0x27a4]
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005A0F73 BA01000000 mov edx,0x1
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005A0F78 33C9 xor ecx,ecx
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005A0F7A 8BF0 mov esi,eax
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005A0F7C 8D642400 lea esp,[esp+0x0]
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005A0F80 B801000000 mov eax,0x1
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005A0F85 D3E0 shl eax,cl
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005A0F87 85C3 test ebx,eax
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005A0F89 7421 jz 0x5a0fac
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005A0F8B 8B06 mov eax,[esi]
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005A0F8D 85C0 test eax,eax
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005A0F8F 7419 jz 0x5a0faa
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005A0F91 85D2 test edx,edx
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005A0F93 7415 jz 0x5a0faa
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005A0F95 8A501C mov dl,[eax+0x1c]
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005A0F98 84D2 test dl,dl
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005A0F9A 740E jz 0x5a0faa
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005A0F9C 8A501D mov dl,[eax+0x1d]
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005A0F9F 84D2 test dl,dl
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005A0FA1 7407 jz 0x5a0faa
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005A0FA3 BA01000000 mov edx,0x1
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005A0FA8 EB02 jmp 0x5a0fac
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005A0FAA 33D2 xor edx,edx
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005A0FAC 41 inc ecx
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005A0FAD 83C604 add esi,0x4
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005A0FB0 83F90D cmp ecx,0xd
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005A0FB3 72CB jc 0x5a0f80
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005A0FB5 8B4D10 mov ecx,[ebp+0x10]
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005A0FB8 85C9 test ecx,ecx
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005A0FBA 7418 jz 0x5a0fd4
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005A0FBC 85D2 test edx,edx
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005A0FBE 7418 jz 0x5a0fd8
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005A0FC0 8B87EC270000 mov eax,[edi+0x27ec]
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005A0FC6 8A501C mov dl,[eax+0x1c]
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005A0FC9 84D2 test dl,dl
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005A0FCB 740B jz 0x5a0fd8
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005A0FCD 8A501D mov dl,[eax+0x1d]
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005A0FD0 84D2 test dl,dl
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005A0FD2 EB02 jmp 0x5a0fd6
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005A0FD4 85D2 test edx,edx
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005A0FD6 7516 jnz 0x5a0fee
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005A0FD8 68A8C78500 push dword 0x85c7a8
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005A0FDD E84EF6FEFF call 0x590630
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005A0FE2 83C404 add esp,0x4
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005A0FE5 5F pop edi
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005A0FE6 5E pop esi
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005A0FE7 5B pop ebx
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005A0FE8 8BE5 mov esp,ebp
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005A0FEA 5D pop ebp
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005A0FEB C20C00 ret word 0xc
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005A0FEE 8B5D0C mov ebx,[ebp+0xc]
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005A0FF1 8B7508 mov esi,[ebp+0x8]
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005A0FF4 51 push ecx
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005A0FF5 53 push ebx
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005A0FF6 56 push esi
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005A0FF7 8BCF mov ecx,edi
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005A0FF9 E8021BFFFF call 0x592b00
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005A0FFE 8BCF mov ecx,edi
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005A1000 E81B0B0000 call 0x5a1b20
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005A1005 85DB test ebx,ebx
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005A1007 0F86DB000000 jna 0x5a10e8
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005A100D 83C60A add esi,0xa
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005A1010 895D08 mov [ebp+0x8],ebx
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005A1013 668B4EFE mov cx,[esi-0x2]
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005A1017 66 o16
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@@ -0,0 +1,88 @@
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void __thiscall RenderSpriteQuads(void *this,int spriteData,uint spriteCount,int renderMode)
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{
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ushort uVar1;
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ushort uVar2;
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int iVar3;
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int iVar4;
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uint uVar5;
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int *piVar6;
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ushort *puVar7;
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bool bVar8;
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undefined *local_8;
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/* Renders sprite quads - validates texture states, calculates rendering
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metrics, and issues draw calls for each valid sprite */
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if (*(int *)((int)this + 0xf2c) != 0) {
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piVar6 = (int *)((int)this + 0x27a4);
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bVar8 = true;
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uVar5 = 0;
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do {
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if ((*(uint *)((int)this + 0x27d8) & 1 << ((byte)uVar5 & 0x1f)) != 0) {
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iVar3 = *piVar6;
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if ((((iVar3 == 0) || (!bVar8)) || (*(char *)(iVar3 + 0x1c) == '\0')) ||
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(*(char *)(iVar3 + 0x1d) == '\0')) {
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bVar8 = false;
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}
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else {
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bVar8 = true;
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}
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}
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uVar5 = uVar5 + 1;
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piVar6 = piVar6 + 1;
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} while (uVar5 < 0xd);
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if (renderMode == 0) {
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bVar8 = !bVar8;
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}
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else {
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if ((!bVar8) || (*(char *)(*(int *)((int)this + 0x27ec) + 0x1c) == '\0')) goto LAB_005a0fd8;
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bVar8 = *(char *)(*(int *)((int)this + 0x27ec) + 0x1d) == '\0';
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}
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if (bVar8) {
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LAB_005a0fd8:
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EmptyStub();
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return;
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}
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CalculateRenderingMetrics(this,spriteData,spriteCount,renderMode);
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getAdapterInfo(this);
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if (spriteCount != 0) {
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puVar7 = (ushort *)(spriteData + 10);
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spriteData = spriteCount;
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do {
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uVar1 = puVar7[-1];
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if (uVar1 != 0) {
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spriteCount = 0;
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if (*(int *)((int)this + 0x24c) == 0) {
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spriteCount = *(uint *)(*(int *)((int)this + 0x27a4) + 0x18) /
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*(uint *)(*(int *)((int)this + 0x27a4) + 0xc);
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}
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if (renderMode == 0) {
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iVar3 = **(int **)((int)this + 0x38a8);
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iVar4 = DisplayMode_CalculateOffset(*(int *)(puVar7 + -5),(uint)uVar1);
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(**(code **)(iVar3 + 0x144))
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(*(undefined4 *)((int)this + 0x38a8),
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*(undefined4 *)(&DAT_0080a14c + *(int *)(puVar7 + -5) * 4),spriteCount,iVar4)
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;
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}
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else {
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uVar2 = *puVar7;
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iVar3 = **(int **)((int)this + 0x38a8);
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iVar4 = DisplayMode_CalculateOffset(*(int *)(puVar7 + -5),(uint)uVar1);
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(**(code **)(iVar3 + 0x148))
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(*(undefined4 *)((int)this + 0x38a8),
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*(undefined4 *)(&DAT_0080a14c + *(int *)(puVar7 + -5) * 4),spriteCount,
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(uint)uVar2,((uint)puVar7[1] - (uint)uVar2) + 1,
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(*(uint *)(*(int *)((int)this + 0x27ec) + 0x18) >> 1) + *(int *)(puVar7 + -3)
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,iVar4);
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}
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}
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puVar7 = puVar7 + 8;
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spriteData = spriteData + -1;
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} while (spriteData != 0);
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}
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}
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return;
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}
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