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Transform rects using indices.

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Not a hge difference.  Minor cleanup.
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Unknown W. Brackets 2015-01-15 12:26:35 -08:00
parent b9b96f1416
commit d663cda2de
4 changed files with 48 additions and 36 deletions
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78
GPU/Common/SoftwareTransformCommon.cpp
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@ -121,7 +121,7 @@ static bool IsReallyAClear(const TransformedVertex *transformed, int numVerts) {
}
void SoftwareTransform(
int prim, u8 *decoded, int vertexCount, u32 vertType, void *inds, int indexType,
int prim, u8 *decoded, int vertexCount, u32 vertType, u16 *&inds, int indexType,
const DecVtxFormat &decVtxFormat, int maxIndex, FramebufferManagerCommon *fbman, TextureCacheCommon *texCache, TransformedVertex *transformed, TransformedVertex *transformedExpanded, TransformedVertex *&drawBuffer, int &numTrans, bool &drawIndexed, SoftwareTransformResult *result) {
bool throughmode = (vertType & GE_VTYPE_THROUGH_MASK) != 0;
bool lmode = gstate.isUsingSecondaryColor() && gstate.isLightingEnabled();
@ -462,36 +462,35 @@ void SoftwareTransform(
numTrans = 0;
drawBuffer = transformedExpanded;
TransformedVertex *trans = &transformedExpanded[0];
TransformedVertex saved;
u32 stencilValue = 0;
const u16 *indsIn = (const u16 *)inds;
u16 *newInds = inds + vertexCount;
u16 *indsOut = newInds;
for (int i = 0; i < vertexCount; i += 2) {
int index = ((const u16*)inds)[i];
saved = transformed[index];
int index2 = ((const u16*)inds)[i + 1];
TransformedVertex &transVtx = transformed[index2];
if (i == 0)
stencilValue = transVtx.color0[3];
// We have to turn the rectangle into two triangles, so 6 points. Sigh.
const TransformedVertex &transVtxTL = transformed[indsIn[i + 0]];
const TransformedVertex &transVtxBR = transformed[indsIn[i + 1]];
// We have to turn the rectangle into two triangles, so 6 points.
// This is 4 verts + 6 indices.
// bottom right
trans[0] = transVtx;
// bottom left
trans[1] = transVtx;
trans[1].y = saved.y;
trans[1].v = saved.v;
// top left
trans[2] = transVtx;
trans[2].x = saved.x;
trans[2].y = saved.y;
trans[2].u = saved.u;
trans[2].v = saved.v;
trans[0] = transVtxBR;
// top right
trans[3] = transVtx;
trans[3].x = saved.x;
trans[3].u = saved.u;
trans[1] = transVtxBR;
trans[1].y = transVtxTL.y;
trans[1].v = transVtxTL.v;
// top left
trans[2] = transVtxBR;
trans[2].x = transVtxTL.x;
trans[2].y = transVtxTL.y;
trans[2].u = transVtxTL.u;
trans[2].v = transVtxTL.v;
// bottom left
trans[3] = transVtxBR;
trans[3].x = transVtxTL.x;
trans[3].u = transVtxTL.u;
// That's the four corners. Now process UV rotation.
if (throughmode)
@ -504,21 +503,34 @@ void SoftwareTransform(
// else
// RotateUV(trans);
// bottom right
trans[4] = trans[0];
// top left
trans[5] = trans[2];
trans += 6;
// Triangle: BR-TR-TL
indsOut[0] = i * 2 + 0;
indsOut[1] = i * 2 + 1;
indsOut[2] = i * 2 + 2;
// Triangle: BL-BR-TL
indsOut[3] = i * 2 + 3;
indsOut[4] = i * 2 + 0;
indsOut[5] = i * 2 + 2;
trans += 4;
indsOut += 6;
numTrans += 6;
}
inds = newInds;
drawIndexed = true;
// We don't know the color until here, so we have to do it now, instead of in StateMapping.
// Might want to reconsider the order of things later...
if (gstate.isModeClear() && gstate.isClearModeAlphaMask()) {
result->setStencil = true;
result->stencilValue = stencilValue;
if (vertexCount > 1) {
// Take the bottom right alpha value of the first rect as the stencil value.
// Technically, each rect should individually fill its stencil, but most of the
// time they use the same one.
result->stencilValue = transformed[indsIn[1]].color0[3];
} else {
result->stencilValue = 0;
}
}
}