| 22 | |
| 23 | |
| 24 | bool IsFramebufferValid( GLenum target ) |
| 25 | { |
| 26 | // get framebuffer status from opengl |
| 27 | GLenum status = glCheckFramebufferStatus( target ); |
| 28 | |
| 29 | // debug output of the framebuffer status |
| 30 | switch( status ) |
| 31 | { |
| 32 | case GL_FRAMEBUFFER_COMPLETE: |
| 33 | printf("**** Framebuffer COMPLETE\n"); |
| 34 | break; |
| 35 | case GL_FRAMEBUFFER_UNDEFINED: |
| 36 | printf("**** Target is the default framebuffer, but the default framebuffer does not exist.\n"); |
| 37 | break; |
| 38 | case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: |
| 39 | printf("**** Any of the framebuffer attachment points are framebuffer incomplete.\n"); |
| 40 | break; |
| 41 | case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: |
| 42 | printf("**** The framebuffer does not have at least one image attached to it.\n"); |
| 43 | break; |
| 44 | case GL_FRAMEBUFFER_UNSUPPORTED: |
| 45 | printf("**** the combination of internal formats of the attached images violates an " |
| 46 | "implementation-dependent set of restrictions.\n"); |
| 47 | break; |
| 48 | case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE: |
| 49 | printf("**** The value of GL_RENDERBUFFER_SAMPLES is not the same for all attached renderbuffers; " |
| 50 | "if the value of GL_TEXTURE_SAMPLES is not the same for all attached textures; or, if " |
| 51 | "the attached images are a mix of renderbuffers and textures, the value of " |
| 52 | "GL_RENDERBUFFER_SAMPLES does not match the value of GL_TEXTURE_SAMPLES." |
| 53 | "Or the value of GL_TEXTURE_FIXED_SAMPLE_LOCATIONS is not the same for all attached " |
| 54 | "textures; or, if the attached images are a mix of renderbuffers and textures, the " |
| 55 | "value of GL_TEXTURE_FIXED_SAMPLE_LOCATIONS is not GL_TRUE for all attached textures.\n"); |
| 56 | break; |
| 57 | case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS: |
| 58 | printf("**** GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS.\n"); |
| 59 | break; |
| 60 | default: |
| 61 | printf("**** IsFramebufferValid() Unknown validation error: %#08x\n", (uint32_t)status ); |
| 62 | break; |
| 63 | } |
| 64 | |
| 65 | return status == GL_FRAMEBUFFER_COMPLETE; |
| 66 | } |
| 67 | |
| 68 | |
| 69 | int main() |