IndexGenerator cleanup.
This commit is contained in:
Jordan Woyak
parent
677c6229ad
commit
368c78dd5c
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@ -15,6 +15,8 @@
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include <cstddef>
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#include "IndexGenerator.h"
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/*
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@ -33,18 +35,12 @@ u16 *IndexGenerator::Lptr = 0;
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u16 *IndexGenerator::BASELptr = 0;
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u16 *IndexGenerator::Pptr = 0;
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u16 *IndexGenerator::BASEPptr = 0;
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int IndexGenerator::numT = 0;
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int IndexGenerator::numL = 0;
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int IndexGenerator::numP = 0;
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int IndexGenerator::index = 0;
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int IndexGenerator::Tadds = 0;
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int IndexGenerator::Ladds = 0;
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int IndexGenerator::Padds = 0;
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IndexGenerator::IndexPrimitiveType IndexGenerator::LastTPrimitive = Prim_None;
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IndexGenerator::IndexPrimitiveType IndexGenerator::LastLPrimitive = Prim_None;
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bool IndexGenerator::used = false;
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u32 IndexGenerator::numT = 0;
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u32 IndexGenerator::numL = 0;
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u32 IndexGenerator::numP = 0;
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u32 IndexGenerator::index = 0;
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void IndexGenerator::Start(u16 *Triangleptr,u16 *Lineptr,u16 *Pointptr)
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void IndexGenerator::Start(u16* Triangleptr, u16* Lineptr, u16* Pointptr)
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{
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Tptr = Triangleptr;
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Lptr = Lineptr;
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@ -56,288 +52,220 @@ void IndexGenerator::Start(u16 *Triangleptr,u16 *Lineptr,u16 *Pointptr)
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numT = 0;
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numL = 0;
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numP = 0;
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Tadds = 0;
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Ladds = 0;
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Padds = 0;
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LastTPrimitive = Prim_None;
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LastLPrimitive = Prim_None;
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}
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// Triangles
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void IndexGenerator::AddList(int numVerts)
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void IndexGenerator::AddIndices(int primitive, u32 numVerts)
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{
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//if we have no vertices return
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if(numVerts <= 0) return;
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int numTris = numVerts / 3;
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//switch (primitive)
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//{
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//case GX_DRAW_QUADS: IndexGenerator::AddQuads(numVertices); break;
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//case GX_DRAW_TRIANGLES: IndexGenerator::AddList(numVertices); break;
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//case GX_DRAW_TRIANGLE_STRIP: IndexGenerator::AddStrip(numVertices); break;
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//case GX_DRAW_TRIANGLE_FAN: IndexGenerator::AddFan(numVertices); break;
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//case GX_DRAW_LINES: IndexGenerator::AddLineList(numVertices); break;
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//case GX_DRAW_LINE_STRIP: IndexGenerator::AddLineStrip(numVertices); break;
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//case GX_DRAW_POINTS: IndexGenerator::AddPoints(numVertices); break;
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//}
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static void (*const primitive_table[])(u32) =
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{
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IndexGenerator::AddQuads,
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NULL,
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IndexGenerator::AddList,
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IndexGenerator::AddStrip,
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IndexGenerator::AddFan,
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IndexGenerator::AddLineList,
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IndexGenerator::AddLineStrip,
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IndexGenerator::AddPoints,
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};
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primitive_table[primitive](numVerts);
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index += numVerts;
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}
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// Triangles
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void IndexGenerator::WriteTriangle(u32 index1, u32 index2, u32 index3)
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{
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*Tptr++ = index1;
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*Tptr++ = index2;
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*Tptr++ = index3;
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++numT;
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}
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void IndexGenerator::AddList(u32 const numVerts)
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{
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auto const numTris = numVerts / 3;
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if (!numTris)
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{
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//if we have less than 3 verts
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if(numVerts == 1)
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if (2 == numVerts)
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{
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// discard
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index++;
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return;
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}
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else
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{
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//we have two verts render a degenerated triangle
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numTris = 1;
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*Tptr++ = index;
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*Tptr++ = index+1;
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*Tptr++ = index;
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// We have two verts. Render a degenerated triangle.
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WriteTriangle(index, index + 1, index);
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}
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}
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else
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{
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for (int i = 0; i < numTris; i++)
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for (u32 i = 0; i != numTris; ++i)
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{
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*Tptr++ = index+i*3;
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*Tptr++ = index+i*3+1;
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*Tptr++ = index+i*3+2;
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WriteTriangle(index + i * 3, index + i * 3 + 1, index + i * 3 + 2);
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}
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int baseRemainingverts = numVerts - numVerts % 3;
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auto const base_remaining_verts = numTris * 3;
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switch (numVerts % 3)
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{
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case 2:
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//whe have 2 remaining verts use strip method
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*Tptr++ = index + baseRemainingverts - 1;
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*Tptr++ = index + baseRemainingverts;
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*Tptr++ = index + baseRemainingverts + 1;
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numTris++;
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// We have 2 remaining verts. Use strip method
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WriteTriangle(
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index + base_remaining_verts - 1,
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index + base_remaining_verts,
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index + base_remaining_verts + 1);
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break;
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case 1:
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//whe have 1 remaining verts use strip method this is only a conjeture
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*Tptr++ = index + baseRemainingverts - 2;
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*Tptr++ = index + baseRemainingverts - 1;
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*Tptr++ = index + baseRemainingverts;
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numTris++;
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// We have 1 remaining vert. Use strip method this is only a conjeture
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WriteTriangle(
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index + base_remaining_verts - 2,
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index + base_remaining_verts - 1,
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index + base_remaining_verts);
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break;
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default:
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break;
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};
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}
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index += numVerts;
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numT += numTris;
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Tadds++;
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LastTPrimitive = Prim_List;
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}
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void IndexGenerator::AddStrip(int numVerts)
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void IndexGenerator::AddStrip(u32 const numVerts)
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{
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if(numVerts <= 0) return;
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int numTris = numVerts - 2;
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if (numTris < 1)
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if (numVerts < 3)
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{
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//if we have less than 3 verts
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if(numVerts == 1)
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if (2 == numVerts)
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{
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// discard
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index++;
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return;
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}
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else
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{
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//we have two verts render a degenerated triangle
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numTris = 1;
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*Tptr++ = index;
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*Tptr++ = index+1;
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*Tptr++ = index;
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// We have two verts. Render a degenerated triangle.
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WriteTriangle(index, index + 1, index);
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}
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}
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else
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{
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{
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bool wind = false;
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for (int i = 0; i < numTris; i++)
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for (u32 i = 2; i < numVerts; ++i)
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{
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*Tptr++ = index+i;
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*Tptr++ = index+i+(wind?2:1);
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*Tptr++ = index+i+(wind?1:2);
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wind = !wind;
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WriteTriangle(
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index + i - 2,
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index + i - !wind,
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index + i - wind);
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wind ^= true;
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}
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}
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index += numVerts;
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numT += numTris;
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Tadds++;
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LastTPrimitive = Prim_Strip;
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}
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void IndexGenerator::AddFan(int numVerts)
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{
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if(numVerts <= 0) return;
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int numTris = numVerts - 2;
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if (numTris < 1)
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{
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//if we have less than 3 verts
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if(numVerts == 1)
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{
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//Discard
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index++;
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return;
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}
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else
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{
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//we have two verts render a degenerated triangle
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numTris = 1;
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*Tptr++ = index;
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*Tptr++ = index+1;
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*Tptr++ = index;
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}
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}
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else
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{
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for (int i = 0; i < numTris; i++)
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{
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*Tptr++ = index;
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*Tptr++ = index+i+1;
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*Tptr++ = index+i+2;
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}
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}
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index += numVerts;
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numT += numTris;
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Tadds++;
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LastTPrimitive = Prim_Fan;
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}
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void IndexGenerator::AddQuads(int numVerts)
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void IndexGenerator::AddFan(u32 numVerts)
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{
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if(numVerts <= 0) return;
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int numTris = (numVerts/4)*2;
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if (numTris == 0)
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if (numVerts < 3)
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{
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//if we have less than 3 verts
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if(numVerts == 1)
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if (2 == numVerts)
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{
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//discard
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index++;
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return;
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}
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else
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{
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if(numVerts == 2)
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{
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//we have two verts render a degenerated triangle
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numTris = 1;
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*Tptr++ = index;
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*Tptr++ = index + 1;
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*Tptr++ = index;
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}
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else
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{
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//we have 3 verts render a full triangle
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numTris = 1;
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*Tptr++ = index;
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*Tptr++ = index + 1;
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*Tptr++ = index + 2;
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}
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// We have two verts. Render a degenerated triangle.
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WriteTriangle(index, index + 1, index);
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}
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}
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else
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{
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for (int i = 0; i < numTris / 2; i++)
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for (u32 i = 2; i < numVerts; ++i)
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{
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*Tptr++ = index+i*4;
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*Tptr++ = index+i*4+1;
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*Tptr++ = index+i*4+2;
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*Tptr++ = index+i*4;
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*Tptr++ = index+i*4+2;
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*Tptr++ = index+i*4+3;
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WriteTriangle(index, index + i - 1, index + i);
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}
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int baseRemainingverts = numVerts - numVerts % 4;
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}
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}
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void IndexGenerator::AddQuads(u32 numVerts)
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{
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auto const numQuads = numVerts / 4;
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if (!numQuads)
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{
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if (2 == numVerts)
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{
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// We have two verts. Render a degenerated triangle.
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WriteTriangle(index, index + 1, index);
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}
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else if (3 == numVerts);
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{
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// We have 3 verts. Render a full triangle.
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WriteTriangle(index, index + 1, index + 2);
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}
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}
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else
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{
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for (u32 i = 0; i != numQuads; ++i)
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{
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WriteTriangle(index + i * 4, index + i * 4 + 1, index + i * 4 + 2);
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WriteTriangle(index + i * 4, index + i * 4 + 2, index + i * 4 + 3);
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}
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auto const base_remaining_verts = numQuads * 4;
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switch (numVerts % 4)
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{
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case 3:
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//whe have 3 remaining verts use strip method
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*Tptr++ = index + baseRemainingverts;
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*Tptr++ = index + baseRemainingverts + 1;
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*Tptr++ = index + baseRemainingverts + 2;
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numTris++;
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// We have 3 remaining verts. Use strip method.
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WriteTriangle(
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index + base_remaining_verts,
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index + base_remaining_verts + 1,
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index + base_remaining_verts + 2);
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break;
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case 2:
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//whe have 2 remaining verts use strip method
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*Tptr++ = index + baseRemainingverts - 1;
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*Tptr++ = index + baseRemainingverts;
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*Tptr++ = index + baseRemainingverts + 1;
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numTris++;
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// We have 3 remaining verts. Use strip method.
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WriteTriangle(
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index + base_remaining_verts - 1,
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index + base_remaining_verts,
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index + base_remaining_verts + 1);
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break;
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case 1:
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//whe have 1 remaining verts use strip method this is only a conjeture
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*Tptr++ = index + baseRemainingverts - 2;
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*Tptr++ = index + baseRemainingverts - 1;
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*Tptr++ = index + baseRemainingverts;
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numTris++;
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// We have 1 remaining verts use strip method. This is only a conjeture.
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WriteTriangle(
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base_remaining_verts - 2,
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index + base_remaining_verts - 1,
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index + base_remaining_verts);
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break;
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default:
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break;
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};
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}
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index += numVerts;
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numT += numTris;
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Tadds++;
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LastTPrimitive = Prim_List;
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}
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//Lines
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void IndexGenerator::AddLineList(int numVerts)
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// Lines
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void IndexGenerator::AddLineList(u32 numVerts)
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{
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if(numVerts <= 0) return;
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int numLines = numVerts / 2;
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if (!numLines)
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auto const numLines = numVerts / 2;
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for (u32 i = 0; i != numLines; ++i)
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{
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//Discard
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index++;
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return;
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*Lptr++ = index + i * 2;
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*Lptr++ = index + i * 2 + 1;
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++numL;
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}
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else
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{
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for (int i = 0; i < numLines; i++)
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{
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*Lptr++ = index+i*2;
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*Lptr++ = index+i*2+1;
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}
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if((numVerts & 1) != 0)
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{
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//use line strip for remaining vert
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*Lptr++ = index + numLines * 2 - 1;
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*Lptr++ = index + numLines * 2;
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}
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}
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index += numVerts;
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numL += numLines;
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Ladds++;
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LastLPrimitive = Prim_List;
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}
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void IndexGenerator::AddLineStrip(int numVerts)
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void IndexGenerator::AddLineStrip(u32 numVerts)
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{
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int numLines = numVerts - 1;
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if (numLines <= 0)
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for (u32 i = 1; i < numVerts; ++i)
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{
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if(numVerts == 1)
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{
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index++;
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}
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return;
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*Lptr++ = index + i - 1;
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*Lptr++ = index + i;
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++numL;
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}
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for (int i = 0; i < numLines; i++)
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{
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*Lptr++ = index+i;
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*Lptr++ = index+i+1;
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}
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index += numVerts;
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numL += numLines;
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Ladds++;
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LastLPrimitive = Prim_Strip;
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}
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//Points
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void IndexGenerator::AddPoints(int numVerts)
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// Points
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void IndexGenerator::AddPoints(u32 numVerts)
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{
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for (int i = 0; i < numVerts; i++)
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for (u32 i = 0; i != numVerts; ++i)
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{
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*Pptr++ = index+i;
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*Pptr++ = index + i;
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++numP;
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}
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index += numVerts;
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numP += numVerts;
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Padds++;
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}
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@ -25,53 +25,58 @@
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class IndexGenerator
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{
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public:
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//Init
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// Init
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static void Start(u16 *Triangleptr,u16 *Lineptr,u16 *Pointptr);
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//Triangles
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static void AddList(int numVerts);
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static void AddStrip(int numVerts);
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static void AddFan(int numVerts);
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static void AddQuads(int numVerts);
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//Lines
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static void AddLineList(int numVerts);
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static void AddLineStrip(int numVerts);
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//Points
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static void AddPoints(int numVerts);
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//Interface
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static int GetNumTriangles() {used = true; return numT;}
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static int GetNumLines() {used = true;return numL;}
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static int GetNumPoints() {used = true;return numP;}
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static int GetNumVerts() {return index;} //returns numprimitives
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static int GetNumAdds() {return Tadds + Ladds + Padds;}
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static int GetTriangleindexLen() {return (int)(Tptr - BASETptr);}
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static int GetLineindexLen() {return (int)(Lptr - BASELptr);}
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static int GetPointindexLen() {return (int)(Pptr - BASEPptr);}
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static void AddIndices(int primitive, u32 numVertices);
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// Interface
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static u32 GetNumTriangles() {return numT;}
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static u32 GetNumLines() {return numL;}
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static u32 GetNumPoints() {return numP;}
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// returns numprimitives
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static u32 GetNumVerts() {return index;}
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|
||||
static u32 GetTriangleindexLen() {return (u32)(Tptr - BASETptr);}
|
||||
static u32 GetLineindexLen() {return (u32)(Lptr - BASELptr);}
|
||||
static u32 GetPointindexLen() {return (u32)(Pptr - BASEPptr);}
|
||||
/*
|
||||
enum IndexPrimitiveType
|
||||
{
|
||||
Prim_None = 0,
|
||||
Prim_List,
|
||||
Prim_Strip,
|
||||
Prim_Fan
|
||||
} ;
|
||||
};
|
||||
*/
|
||||
private:
|
||||
// Triangles
|
||||
static void AddList(u32 numVerts);
|
||||
static void AddStrip(u32 numVerts);
|
||||
static void AddFan(u32 numVerts);
|
||||
static void AddQuads(u32 numVerts);
|
||||
|
||||
static void WriteTriangle(u32 index1, u32 index2, u32 index3);
|
||||
|
||||
// Lines
|
||||
static void AddLineList(u32 numVerts);
|
||||
static void AddLineStrip(u32 numVerts);
|
||||
|
||||
// Points
|
||||
static void AddPoints(u32 numVerts);
|
||||
|
||||
static u16 *Tptr;
|
||||
static u16 *BASETptr;
|
||||
static u16 *Lptr;
|
||||
static u16 *BASELptr;
|
||||
static u16 *Pptr;
|
||||
static u16 *BASEPptr;
|
||||
static int numT;
|
||||
static int numL;
|
||||
static int numP;
|
||||
static int index;
|
||||
static int Tadds;
|
||||
static int Ladds;
|
||||
static int Padds;
|
||||
static IndexPrimitiveType LastTPrimitive;
|
||||
static IndexPrimitiveType LastLPrimitive;
|
||||
static bool used;
|
||||
|
||||
// TODO: redundant variables
|
||||
static u32 numT;
|
||||
static u32 numL;
|
||||
static u32 numP;
|
||||
static u32 index;
|
||||
};
|
||||
|
||||
#endif // _INDEXGENERATOR_H
|
||||
|
|
|
|||
|
|
@ -59,34 +59,6 @@ VertexManager::~VertexManager()
|
|||
ResetBuffer();
|
||||
}
|
||||
|
||||
void VertexManager::AddIndices(int primitive, int numVertices)
|
||||
{
|
||||
//switch (primitive)
|
||||
//{
|
||||
//case GX_DRAW_QUADS: IndexGenerator::AddQuads(numVertices); break;
|
||||
//case GX_DRAW_TRIANGLES: IndexGenerator::AddList(numVertices); break;
|
||||
//case GX_DRAW_TRIANGLE_STRIP: IndexGenerator::AddStrip(numVertices); break;
|
||||
//case GX_DRAW_TRIANGLE_FAN: IndexGenerator::AddFan(numVertices); break;
|
||||
//case GX_DRAW_LINES: IndexGenerator::AddLineList(numVertices); break;
|
||||
//case GX_DRAW_LINE_STRIP: IndexGenerator::AddLineStrip(numVertices); break;
|
||||
//case GX_DRAW_POINTS: IndexGenerator::AddPoints(numVertices); break;
|
||||
//}
|
||||
|
||||
static void (*const primitive_table[])(int) =
|
||||
{
|
||||
IndexGenerator::AddQuads,
|
||||
NULL,
|
||||
IndexGenerator::AddList,
|
||||
IndexGenerator::AddStrip,
|
||||
IndexGenerator::AddFan,
|
||||
IndexGenerator::AddLineList,
|
||||
IndexGenerator::AddLineStrip,
|
||||
IndexGenerator::AddPoints,
|
||||
};
|
||||
|
||||
primitive_table[primitive](numVertices);
|
||||
}
|
||||
|
||||
int VertexManager::GetRemainingSize()
|
||||
{
|
||||
return (int)(s_pEndBufferPointer - s_pCurBufferPointer);
|
||||
|
|
@ -119,7 +91,7 @@ int VertexManager::GetRemainingVertices(int primitive)
|
|||
}
|
||||
}
|
||||
|
||||
void VertexManager::AddVertices(int primitive, int numVertices)
|
||||
void VertexManager::AddVertices(int primitive, u32 numVertices)
|
||||
{
|
||||
if (numVertices <= 0)
|
||||
return;
|
||||
|
|
@ -132,7 +104,7 @@ void VertexManager::AddVertices(int primitive, int numVertices)
|
|||
|
||||
ADDSTAT(stats.thisFrame.numPrims, numVertices);
|
||||
INCSTAT(stats.thisFrame.numPrimitiveJoins);
|
||||
AddIndices(primitive, numVertices);
|
||||
IndexGenerator::AddIndices(primitive, numVertices);
|
||||
}
|
||||
|
||||
void VertexManager::Flush()
|
||||
|
|
|
|||
|
|
@ -27,7 +27,7 @@ public:
|
|||
VertexManager();
|
||||
virtual ~VertexManager(); // needs to be virtual for DX11's dtor
|
||||
|
||||
static void AddVertices(int _primitive, int _numVertices);
|
||||
static void AddVertices(int _primitive, u32 _numVertices);
|
||||
|
||||
// TODO: protected?
|
||||
static u8 *s_pBaseBufferPointer;
|
||||
|
|
@ -63,7 +63,6 @@ protected:
|
|||
void DoStateShared(PointerWrap& p);
|
||||
|
||||
private:
|
||||
static void AddIndices(int primitive, int numVertices);
|
||||
//virtual void Draw(u32 stride, bool alphapass) = 0;
|
||||
// temp
|
||||
virtual void vFlush() = 0;
|
||||
|
|
|
|||
Loading…
Reference in New Issue