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experiments with params in AllBullet2Demos (quick hack for testing, will clean this up soon)

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yet another workaround to make Intel GPU work with glDrawBuffers on Ubuntu
This commit is contained in:
Erwin Coumans (Google)
2014-07-08 16:42:57 -07:00
parent f89d70b895
commit 27b0e4d1e6
4 changed files with 120 additions and 28 deletions
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21
btgui/OpenGLWindow/GLRenderToTexture.cpp
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@@ -24,19 +24,19 @@ GLRenderToTexture::GLRenderToTexture()
#endif//!defined(_WIN32) && !defined(__APPLE__)
}
void GLRenderToTexture::init(int width, int height, GLuint textureId, int renderTextureType)
{
m_renderTextureType = renderTextureType;
glGenFramebuffers(1, &m_framebufferName);
glBindFramebuffer(GL_FRAMEBUFFER, m_framebufferName);
// The depth buffer
// glGenRenderbuffers(1, &m_depthrenderbuffer);
// glBindRenderbuffer(GL_RENDERBUFFER, m_depthrenderbuffer);
// glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, width, height);
// glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, m_depthrenderbuffer);
@@ -71,7 +71,7 @@ bool GLRenderToTexture::enable()
glBindFramebuffer(GL_FRAMEBUFFER, m_framebufferName);
switch (m_renderTextureType)
{
case RENDERTEXTURE_COLOR:
@@ -86,11 +86,10 @@ bool GLRenderToTexture::enable()
//Intel OpenGL driver crashes when using GL_NONE for glDrawBuffer on Linux, so use a workaround
if (gIntelLinuxglDrawBufferWorkaround)
{
GLenum drawBuffers[2] = { GL_DEPTH_ATTACHMENT,0};
glDrawBuffers(1, drawBuffers);
GLenum drawBuffers[2] = { GL_COLOR_ATTACHMENT0,0};
glDrawBuffers(1, drawBuffers);
} else
{
{
glDrawBuffer(GL_NONE);
}
break;
@@ -117,7 +116,7 @@ void GLRenderToTexture::disable()
{
glBindFramebuffer( GL_FRAMEBUFFER, 0 );
}
GLRenderToTexture::~GLRenderToTexture()
{
glBindFramebuffer( GL_FRAMEBUFFER, 0 );
@@ -129,7 +128,7 @@ GLRenderToTexture::~GLRenderToTexture()
if( m_framebufferName)
{
{
glDeleteFramebuffers(1, &m_framebufferName);
}
}