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Create internal format as GL_RG8 for LUMINANCE_ALPHA. Closes #1599

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baldurk
2019-11-18 10:18:07 +00:00
parent 597058a68b
commit a1c6cc1411
1 changed files with 6 additions and 1 deletions
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renderdoc/driver/gl/wrappers/gl_emulated.cpp
+6 -1
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@@ -2629,8 +2629,12 @@ void APIENTRY _glGetTexImage(GLenum target, GLint level, GLenum format, GLenum t
RDCDEBUG("Doing manual blit from %s to allow readback", ToStr(format).c_str());
GLenum remapformat = eGL_RED;
GLenum internalformat = eGL_R8;
if(format == eGL_LUMINANCE_ALPHA)
{
remapformat = eGL_RG;
internalformat = eGL_RG8;
}
GLint baseLevel = 0;
GLint maxLevel = 0;
@@ -2648,7 +2652,8 @@ void APIENTRY _glGetTexImage(GLenum target, GLint level, GLenum format, GLenum t
// allocate the R8 texture
GL.glTexParameteri(target, eGL_TEXTURE_MAX_LEVEL, 0);
GL.glTexImage2D(target, 0, eGL_R8, width, height, 0, remapformat, eGL_UNSIGNED_BYTE, NULL);
GL.glTexImage2D(target, 0, internalformat, width, height, 0, remapformat, eGL_UNSIGNED_BYTE,
NULL);
// render to it
GL.glFramebufferTexture2D(eGL_FRAMEBUFFER, eGL_COLOR_ATTACHMENT0, target, readtex, 0);