void GLSaveScreenshot(const char* filename)
{
#if (defined WIN32 && defined GDI_AVAILABLE)
// These are important to get screen captures to work correctly
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
GLint vp[4];
glGetIntegerv(GL_VIEWPORT,vp);
int x=vp[0];
int y=vp[1];
int width = vp[2];
int height = vp[3];
//row-major array, bottom corner is first row
Image image;
image.initialize(width,height,Image::R8G8B8);
glReadBuffer(GL_FRONT);
glReadPixels(x,y,width,height,GL_RGB,GL_UNSIGNED_BYTE,image.data);
ExportImageGDIPlus(filename,image);
#else
fprintf(stderr,"Warning, saving screenshot in PPM format...\n");
GLSaveScreenshotPPM(filename);
#endif
}
bool GLSaveScreenshot(const char* filename)
{
#if (defined WIN32 && defined GDI_AVAILABLE)
// These are important to get screen captures to work correctly
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
GLint vp[4];
glGetIntegerv(GL_VIEWPORT,vp);
int x=vp[0];
int y=vp[1];
int width = vp[2];
int height = vp[3];
//row-major array, bottom corner is first row
Image image;
image.initialize(width,height,Image::R8G8B8);
//glReadBuffer(GL_FRONT);
glReadBuffer(GL_BACK);
glReadPixels(x,y,width,height,GL_RGB,GL_UNSIGNED_BYTE,image.data);
bool errors = CheckGLErrors("SaveScreenshot",false);
if(errors) return false;
//printf("Flipping RGB image...\n");
flipRGBImage(image.data,width,height);
//printf("Done, now exporting...\n");
return ExportImageGDIPlus(filename,image);
//printf("Done, saving screenshot.\n");
/*
ImageOperator op(image);
ImageOperator op2;
op2.initialize(640,480);
op.stretchBlitBilinear(op2);
Image image2;
op2.output(image2,Image::R8G8B8);
ExportImageGDIPlus(filename,image2);
*/
#else
fprintf(stderr,"Warning, saving screenshot in PPM format...\n");
return GLSaveScreenshotPPM(filename);
#endif
}
