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Clear detection: Don't need to check the even vertices, as the odd vertices are the ones used for color.

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This lets us detect and replace cube.elf's clear, and probably others.
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Henrik Rydgard 2016-01-09 10:41:05 +01:00 • committed by Unknown W. Brackets
parent d67b148712
commit 9d8d810395
1 changed files with 8 additions and 8 deletions
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16
GPU/Common/SoftwareTransformCommon.cpp
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@ -96,16 +96,14 @@ static bool IsReallyAClear(const TransformedVertex *transformed, int numVerts) {
if (transformed[0].x != 0.0f || transformed[0].y != 0.0f) if (transformed[0].x != 0.0f || transformed[0].y != 0.0f)
return false; return false;
u32 matchcolor = transformed[0].color0_32; // Color and Z are decided by the second vertex, so only need to check those for matching color.
float matchz = transformed[0].z; u32 matchcolor = transformed[1].color0_32;
float matchz = transformed[1].z;
int bufW = gstate_c.curRTWidth; int bufW = gstate_c.curRTWidth;
int bufH = gstate_c.curRTHeight; int bufH = gstate_c.curRTHeight;
for (int i = 1; i < numVerts; i++) { for (int i = 1; i < numVerts; i++) {
if (transformed[i].color0_32 != matchcolor || transformed[i].z != matchz)
return false;
if ((i & 1) == 0) { if ((i & 1) == 0) {
// Top left of a rectangle // Top left of a rectangle
if (transformed[i].y != 0) if (transformed[i].y != 0)
@ -113,6 +111,8 @@ static bool IsReallyAClear(const TransformedVertex *transformed, int numVerts) {
if (i > 0 && transformed[i].x != transformed[i - 1].x) if (i > 0 && transformed[i].x != transformed[i - 1].x)
return false; return false;
} else { } else {
if ((i & 1) && transformed[i].color0_32 != matchcolor || transformed[i].z != matchz)
return false;
// Bottom right // Bottom right
if (transformed[i].y != bufH) if (transformed[i].y != bufH)
return false; return false;
@ -406,9 +406,9 @@ void SoftwareTransform(
// Experiment: Disable on PowerVR (see issue #6290) // Experiment: Disable on PowerVR (see issue #6290)
// TODO: This bleeds outside the play area in non-buffered mode. Big deal? Probably not. // TODO: This bleeds outside the play area in non-buffered mode. Big deal? Probably not.
if (maxIndex > 1 && gstate.isModeClear() && prim == GE_PRIM_RECTANGLES && IsReallyAClear(transformed, maxIndex) && gl_extensions.gpuVendor != GPU_VENDOR_POWERVR) { // && g_Config.iRenderingMode != FB_NON_BUFFERED_MODE) { if (maxIndex > 1 && gstate.isModeClear() && prim == GE_PRIM_RECTANGLES && IsReallyAClear(transformed, maxIndex) && gl_extensions.gpuVendor != GPU_VENDOR_POWERVR) { // && g_Config.iRenderingMode != FB_NON_BUFFERED_MODE) {
result->color = transformed[0].color0_32; result->color = transformed[1].color0_32;
// Need to rescale from a [0, 1] float. This is the final transformed value. // Need to rescale from a [0, 1] float. This is the final transformed value.
result->depth = ToScaledDepth((s16)(int)(transformed[0].z * 65535.0f)); result->depth = ToScaledDepth((s16)(int)(transformed[1].z * 65535.0f));
result->action = SW_CLEAR; result->action = SW_CLEAR;
return; return;
} }
@ -552,7 +552,7 @@ void SoftwareTransform(
result->setStencil = true; result->setStencil = true;
if (vertexCount > 1) { if (vertexCount > 1) {
// Take the bottom right alpha value of the first rect as the stencil value. // 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 // Technically, each rect could individually fill its stencil, but most of the
// time they use the same one. // time they use the same one.
result->stencilValue = transformed[indsIn[1]].color0[3]; result->stencilValue = transformed[indsIn[1]].color0[3];
} else { } else {