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GPU: Fix invalid rectangle passed to glScissor

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This commit is contained in:
Connor McLaughlin
2019-10-05 14:36:48 +10:00
parent c2baa7e834
commit 431313156a
4 changed files with 26 additions and 16 deletions
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27
src/core/gpu_hw_opengl.cpp
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@ -396,20 +396,27 @@ void GPU_HW_OpenGL::SetDrawState()
glBlendFuncSeparate(GL_ONE, GL_SRC_ALPHA, GL_ONE, GL_ZERO);
}
}
if (m_drawing_area_changed)
{
m_drawing_area_changed = false;
int left, top, right, bottom;
CalcScissorRect(&left, &top, &right, &bottom);
const int width = right - left;
const int height = bottom - top;
const int x = left;
const int y = m_vram_texture->GetHeight() - bottom;
Log_DebugPrintf("SetScissor: (%d-%d, %d-%d)", x, x + width, y, y + height);
glScissor(x, y, width, height);
}
}
void GPU_HW_OpenGL::UpdateDrawingArea()
{
int left, top, right, bottom;
CalcScissorRect(&left, &top, &right, &bottom);
const int width = right - left;
const int height = bottom - top;
const int x = left;
const int y = m_vram_texture->GetHeight() - bottom;
Log_DebugPrintf("SetScissor: (%d-%d, %d-%d)", x, x + width, y, y + height);
glScissor(x, y, width, height);
m_drawing_area_changed = true;
}
void GPU_HW_OpenGL::UpdateDisplay()