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Make sure texture unit 0 is active when reseting RenderTarget states (#523), fix RenderTarget not clearing when a texture used as a RenderTexture color attachment is left bound in a different context (http://en.sfml-dev.org/forums/index.php?topic=9350.0).

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binary1248 2014-04-28 19:43:55 +02:00 committed by Lukas Dürrenberger
parent a3ab6efa23
commit e6b5ce1f27
2 changed files with 19 additions and 0 deletions
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8
src/SFML/Graphics/GLExtensions.hpp
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@ -58,6 +58,10 @@
#define GLEXT_GL_DEPTH_COMPONENT GL_DEPTH_COMPONENT16_OES
#define GLEXT_GL_INVALID_FRAMEBUFFER_OPERATION GL_INVALID_FRAMEBUFFER_OPERATION_OES
#define GLEXT_texture_non_power_of_two false
#define GLEXT_multitexture true
#define GLEXT_glClientActiveTexture glClientActiveTexture
#define GLEXT_glActiveTexture glActiveTexture
#define GLEXT_GL_TEXTURE0 GL_TEXTURE0
#else
@ -88,6 +92,10 @@
#define GLEXT_GL_DEPTH_COMPONENT GL_DEPTH_COMPONENT
#define GLEXT_GL_INVALID_FRAMEBUFFER_OPERATION GL_INVALID_FRAMEBUFFER_OPERATION_EXT
#define GLEXT_texture_non_power_of_two GLEW_ARB_texture_non_power_of_two
#define GLEXT_multitexture GLEW_ARB_multitexture
#define GLEXT_glClientActiveTexture glClientActiveTextureARB
#define GLEXT_glActiveTexture glActiveTextureARB
#define GLEXT_GL_TEXTURE0 GL_TEXTURE0_ARB
#endif

11
src/SFML/Graphics/RenderTarget.cpp
View File

@ -93,6 +93,9 @@ void RenderTarget::clear(const Color& color)
{
if (activate(true))
{
// Unbind texture to fix RenderTexture preventing clear
applyTexture(NULL);
glCheck(glClearColor(color.r / 255.f, color.g / 255.f, color.b / 255.f, color.a / 255.f));
glCheck(glClear(GL_COLOR_BUFFER_BIT));
}
@ -367,6 +370,14 @@ void RenderTarget::resetGLStates()
applyTexture(NULL);
if (shaderAvailable)
applyShader(NULL);
// Make sure that the texture unit which is active is the number 0
if (GLEXT_multitexture)
{
glCheck(GLEXT_glClientActiveTexture(GLEXT_GL_TEXTURE0));
glCheck(GLEXT_glActiveTexture(GLEXT_GL_TEXTURE0));
}
m_cache.useVertexCache = false;
// Set the default view