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FIXED: Shader-related crashes when uninitializing OpenGL renderer

This commit is contained in:
spacy51 2007-12-27 14:57:15 +00:00
parent 1ad8fe2c8f
commit 658bf188cc
1 changed files with 8 additions and 8 deletions
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16
src/win32/OpenGL.cpp
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@ -89,6 +89,7 @@ private:
GLFONT font;
int VertexShader,FragmentShader,textureLocation,ShaderProgram,g_location_grayScaleWeights;
char *VertexShaderSource,*FragmentShaderSource;
bool shaderFuncInited;
void initializeMatrices( int w, int h );
bool initializeTexture( int w, int h );
@ -210,6 +211,8 @@ void OpenGLDisplay::SetGLSLShaderConstants()
}
void OpenGLDisplay::DeInitGLSLShader (void) {
if( !shaderFuncInited ) return;
if (VertexShader != 0){
glDeleteObjectARB(VertexShader);
}
@ -219,7 +222,7 @@ void OpenGLDisplay::DeInitGLSLShader (void) {
if (FragmentShader != 0){
glDeleteObjectARB(ShaderProgram);
}
shaderFuncInited = false;
}
OpenGLDisplay::OpenGLDisplay()
@ -232,6 +235,7 @@ OpenGLDisplay::OpenGLDisplay()
size = 0.0f;
failed = false;
filterData = NULL;
shaderFuncInited = false;
}
@ -268,8 +272,7 @@ void OpenGLDisplay::DisableOpenGL()
void OpenGLDisplay::cleanup()
{
DeInitGLSLShader();
DeInitGLSLShader();
if(texture != 0) {
glDeleteTextures(1, &texture);
@ -318,6 +321,7 @@ bool OpenGLDisplay::initialize()
glGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC)wglGetProcAddress("glGetUniformLocationARB");
glUniform4fARB = (PFNGLUNIFORM4FARBPROC)wglGetProcAddress("glUniform4fARB");
glUniform1iARB = (PFNGLUNIFORM1IARBPROC)wglGetProcAddress("glUniform1iARB");
shaderFuncInited = true;
}
initializeMatrices( theApp.surfaceSizeX, theApp.surfaceSizeY );
@ -359,15 +363,11 @@ void OpenGLDisplay::clear()
void OpenGLDisplay::render()
{
clear();
if (theApp.GLSLShaders){
if (theApp.GLSLShaders && shaderFuncInited){
InitGLSLShader();
glUseProgramObjectARB( ShaderProgram );
SetGLSLShaderConstants();
}
else
{
DeInitGLSLShader();
}
int pitch = theApp.filterWidth * (systemColorDepth>>3) + 4;