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Fix somewhat incorrect upscale texture handling. Replace InstancedResources reset with something that's less likely to be undefined behavior.

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elasota
2021-04-20 20:42:30 -04:00
parent 77e02927c6
commit 1dc86a703e
2 changed files with 36 additions and 15 deletions
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29
AerofoilSDL/GpDisplayDriver_SDL_GL2.cpp
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@@ -846,9 +846,6 @@ private:
GpComPtr<GpGLRenderTargetView> m_upscaleTextureRTV;
GpComPtr<GpGLTexture> m_upscaleTexture;
uint32_t m_upscaleTextureWidth;
uint32_t m_upscaleTextureHeight;
GpComPtr<GpGLVertexArray> m_quadVertexArray;
GpComPtr<GpGLBuffer> m_quadVertexBufferKeepalive;
GpComPtr<GpGLBuffer> m_quadIndexBuffer;
@@ -905,7 +902,10 @@ private:
uint32_t m_initialHeightVirtual;
float m_pixelScaleX;
float m_pixelScaleY;
bool m_useUpscaleFilter;
uint32_t m_upscaleTextureWidth;
uint32_t m_upscaleTextureHeight;
GpCursor_SDL2 *m_activeCursor;
GpCursor_SDL2 *m_pendingCursor;
@@ -1197,6 +1197,8 @@ GpDisplayDriver_SDL_GL2::GpDisplayDriver_SDL_GL2(const GpDisplayDriverProperties
, m_pixelScaleX(1.0f)
, m_pixelScaleY(1.0f)
, m_useUpscaleFilter(false)
, m_upscaleTextureWidth(0)
, m_upscaleTextureHeight(0)
, m_pendingCursor(nullptr)
, m_activeCursor(nullptr)
, m_currentStandardCursor(EGpStandardCursors::kArrow)
@@ -1531,8 +1533,7 @@ void GpDisplayDriver_SDL_GL2::ServeTicks(int ticks)
logger->Printf(IGpLogDriver::Category_Information, "Resetting OpenGL context. Physical: %i x %i Virtual %i x %i", static_cast<int>(m_windowWidthPhysical), static_cast<int>(m_windowHeightPhysical), static_cast<int>(m_windowWidthVirtual), static_cast<int>(m_windowHeightVirtual));
// Drop everything and reset
m_res.~InstancedResources();
new (&m_res) InstancedResources();
m_res = InstancedResources();
if (m_firstSurface)
m_firstSurface->DestroyAll();
@@ -2458,11 +2459,6 @@ bool GpDisplayDriver_SDL_GL2::InitResources(uint32_t physicalWidth, uint32_t phy
if (logger)
logger->Printf(IGpLogDriver::Category_Information, "GpDisplayDriver_SDL_GL2::InitResources");
if ((m_pixelScaleX < 2.0f && m_pixelScaleX > 1.0f) || (m_pixelScaleY < 2.0f && m_pixelScaleY > 1.0f))
m_useUpscaleFilter = true;
else
m_useUpscaleFilter = false;
CheckGLError(m_gl, logger);
if (!InitBackBuffer(virtualWidth, virtualHeight))
@@ -2778,9 +2774,12 @@ bool GpDisplayDriver_SDL_GL2::InitBackBuffer(uint32_t width, uint32_t height)
m_gl.BindFramebuffer(GL_FRAMEBUFFER, 0);
}
m_useUpscaleFilter = ((m_pixelScaleX < 2.0f && m_pixelScaleX > 1.0f) || (m_pixelScaleY < 2.0f && m_pixelScaleY > 1.0f));
if (m_pixelScaleX != floor(m_pixelScaleX) || m_pixelScaleY != floor(m_pixelScaleY))
if (m_useUpscaleFilter)
{
m_useUpscaleFilter = true;
uint32_t upscaleX = ceil(m_pixelScaleX);
uint32_t upscaleY = ceil(m_pixelScaleY);
@@ -2794,8 +2793,8 @@ bool GpDisplayDriver_SDL_GL2::InitBackBuffer(uint32_t width, uint32_t height)
return false;
}
m_res.m_upscaleTextureWidth = width * upscaleX;
m_res.m_upscaleTextureHeight = height * upscaleY;
m_upscaleTextureWidth = width * upscaleX;
m_upscaleTextureHeight = height * upscaleY;
GLenum internalFormat = SupportsSizedFormats() ? GL_RGBA8 : GL_RGBA;
@@ -2805,7 +2804,7 @@ bool GpDisplayDriver_SDL_GL2::InitBackBuffer(uint32_t width, uint32_t height)
m_gl.TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
m_gl.TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
m_gl.TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
m_gl.TexImage2D(GL_TEXTURE_2D, 0, internalFormat, m_res.m_upscaleTextureWidth, m_res.m_upscaleTextureHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
m_gl.TexImage2D(GL_TEXTURE_2D, 0, internalFormat, m_upscaleTextureWidth, m_upscaleTextureHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
m_gl.BindTexture(GL_TEXTURE_2D, 0);
CheckGLError(m_gl, logger);
@@ -2850,7 +2849,7 @@ void GpDisplayDriver_SDL_GL2::ScaleVirtualScreen()
{
m_gl.BindFramebuffer(GL_FRAMEBUFFER, m_res.m_upscaleTextureRTV->GetID());
m_gl.Viewport(0, 0, m_res.m_upscaleTextureWidth, m_res.m_upscaleTextureHeight);
m_gl.Viewport(0, 0, m_upscaleTextureWidth, m_upscaleTextureHeight);
const BlitQuadProgram &program = m_res.m_scaleQuadProgram;