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Fix viewport vertical positioning, fixing #8165. However, God Eater bloom breaks. Why??

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This commit is contained in:
Henrik Rydgard 2015-11-04 22:29:18 +01:00
parent 05880763a5
commit ffe35f73af
1 changed files with 2 additions and 5 deletions
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7
GPU/GLES/StateMapping.cpp
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@ -835,22 +835,19 @@ void TransformDrawEngine::ApplyDrawState(int prim) {
// This means that to get the analogue glViewport we must:
float vpX0 = vpXCenter - offsetX - fabsf(vpXScale);
float vpY0 = vpYCenter - offsetY + fabsf(vpYScale); // Need to account for sign of Y
float vpY0 = vpYCenter - offsetY - fabsf(vpYScale); // Need to account for sign of Y
gstate_c.vpWidth = vpXScale * 2.0f;
gstate_c.vpHeight = -vpYScale * 2.0f;
float vpWidth = fabsf(gstate_c.vpWidth);
float vpHeight = fabsf(gstate_c.vpHeight);
// This multiplication should probably be done after viewport clipping. Would let us very slightly simplify the clipping logic?
vpX0 *= renderWidthFactor;
vpY0 *= renderHeightFactor;
vpWidth *= renderWidthFactor;
vpHeight *= renderHeightFactor;
// Flip vpY0 to match the OpenGL coordinate system.
// TODO: This makes no sense anymore, in "flipped space".
vpY0 = renderHeight - vpY0;
// We used to apply the viewport here via glstate, but there are limits which vary by driver.
// This may mean some games won't work, or at least won't work at higher render resolutions.
// So we apply it in the shader instead.