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Handle render buffers properly in GetTextureData

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* We blit to and read from a texture since render buffers can't be read
  from directly.
This commit is contained in:
baldurk
2016-10-24 19:54:50 +02:00
parent aab34d8fd0
commit 5cca910a85
1 changed files with 37 additions and 0 deletions
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renderdoc/driver/gl/gl_replay.cpp
+37
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@@ -2399,6 +2399,43 @@ byte *GLReplay::GetTextureData(ResourceId tex, uint32_t arrayIdx, uint32_t mip,
identity.Apply(&gl.GetHookset(), true);
if(texType == eGL_RENDERBUFFER)
{
// do blit from renderbuffer to texture
MakeCurrentReplayContext(&m_ReplayCtx);
GLuint curDrawFBO = 0;
GLuint curReadFBO = 0;
gl.glGetIntegerv(eGL_DRAW_FRAMEBUFFER_BINDING, (GLint *)&curDrawFBO);
gl.glGetIntegerv(eGL_READ_FRAMEBUFFER_BINDING, (GLint *)&curReadFBO);
gl.glBindFramebuffer(eGL_DRAW_FRAMEBUFFER, texDetails.renderbufferFBOs[1]);
gl.glBindFramebuffer(eGL_READ_FRAMEBUFFER, texDetails.renderbufferFBOs[0]);
GLenum b = GetBaseFormat(texDetails.internalFormat);
GLbitfield mask = GL_COLOR_BUFFER_BIT;
if(b == eGL_DEPTH_COMPONENT)
mask = GL_DEPTH_BUFFER_BIT;
else if(b == eGL_STENCIL)
mask = GL_STENCIL_BUFFER_BIT;
else if(b == eGL_DEPTH_STENCIL)
mask = GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT;
gl.glBlitFramebuffer(0, 0, texDetails.width, texDetails.height, 0, 0, texDetails.width,
texDetails.height, mask, eGL_NEAREST);
gl.glBindFramebuffer(eGL_DRAW_FRAMEBUFFER, curDrawFBO);
gl.glBindFramebuffer(eGL_READ_FRAMEBUFFER, curReadFBO);
// then proceed to read from the texture
texname = texDetails.renderbufferReadTex;
texType = eGL_TEXTURE_2D;
MakeCurrentReplayContext(m_DebugCtx);
}
GLenum binding = TextureBinding(texType);
GLuint prevtex = 0;