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Added error checking routines to GL texture uploading

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Originally committed to SVN as r877.
This commit is contained in:
Rodrigo Braz Monteiro 2007-01-22 20:01:07 +00:00
parent 2d1fdcdfb9
commit 304b10b6d5
1 changed files with 8 additions and 0 deletions
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8
aegisub/video_context.cpp
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@ -402,6 +402,7 @@ GLuint VideoContext::GetFrameAsTexture(int n) {
// Set context
GetGLContext(displayList.front())->SetCurrent(*displayList.front());
glEnable(GL_TEXTURE_2D);
if (glGetError() != 0) throw _T("Error enabling texturing.");
if (lastTex == 0) {
// Enable
@ -409,7 +410,9 @@ GLuint VideoContext::GetFrameAsTexture(int n) {
// Generate texture with GL
glGenTextures(1, &lastTex);
if (glGetError() != 0) throw _T("Error generating texture.");
glBindTexture(GL_TEXTURE_2D, lastTex);
if (glGetError() != 0) throw _T("Error binding texture.");
// Load image data into texture
int height = frame.h;
@ -419,18 +422,23 @@ GLuint VideoContext::GetFrameAsTexture(int n) {
texW = float(frame.w)/float(tw);
texH = float(frame.h)/float(th);
glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA,tw,th,0,format,GL_UNSIGNED_BYTE,NULL);
if (glGetError() != 0) throw _T("Error allocating texture.");
// Set texture
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
if (glGetError() != 0) throw _T("Error setting hinting.");
}
// Load texture data
glTexSubImage2D(GL_TEXTURE_2D,0,0,0,frame.w,frame.h,format,GL_UNSIGNED_BYTE,frame.data[0]);
if (glGetError() != 0) throw _T("Error uploading primary plane");
// UV planes for YV12
if (frame.format == FORMAT_YV12) {
glTexSubImage2D(GL_TEXTURE_2D,0,0,frame.h,frame.w/2,frame.h/2,format,GL_UNSIGNED_BYTE,frame.data[1]);
if (glGetError() != 0) throw _T("Error uploading U plane.");
glTexSubImage2D(GL_TEXTURE_2D,0,frame.w/2,frame.h,frame.w/2,frame.h/2,format,GL_UNSIGNED_BYTE,frame.data[2]);
if (glGetError() != 0) throw _T("Error uploadinv V plane.");
}
// Return texture number