// ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
//
void GfxTexture::SaveTGA( const char* fname )
{
FILE *file_TGA = fopen( fname, "wb");
if (file_TGA != NULL)
{
int nSize = Width * Height * (IsRGBA ? 4 : 1);
void *buf_image = malloc( nSize );
if (buf_image != NULL)
{
glBindFramebuffer(GL_FRAMEBUFFER,FramebufferId);
check_gl();
glReadPixels(0,0,Width,Height,IsRGBA ? GL_RGBA : GL_LUMINANCE, GL_UNSIGNED_BYTE, buf_image);
check_gl();
glBindFramebuffer(GL_FRAMEBUFFER,0);
raspitexutil_brga_to_rgba( (uint8_t*) buf_image, nSize );
write_tga( file_TGA, Width, Height, (uint8_t*) buf_image, nSize);
free(buf_image);
}
fclose( file_TGA );
}
}
/**
* Writes the next GL frame-buffer to a RAW .ppm formatted file
* using the specified file-handle.
* @param state Pointer to the GL preview state.
* @param outpt_file Output file handle for the ppm image.
* @return Zero on success.
*/
int raspitex_capture(RASPITEX_STATE *state, FILE *output_file)
{
int rc = 0;
uint8_t *buffer = NULL;
size_t size = 0;
vcos_log_trace("%s: state %p file %p", VCOS_FUNCTION,
state, output_file);
if (state && output_file)
{
/* Only request one capture at a time */
vcos_semaphore_wait(&state->capture.start_sem);
state->capture.request = 1;
/* Wait for capture to start */
vcos_semaphore_wait(&state->capture.completed_sem);
/* Take ownership of the captured buffer */
buffer = state->capture.buffer;
size = state->capture.size;
state->capture.request = 0;
state->capture.buffer = 0;
state->capture.size = 0;
/* Allow another capture to be requested */
vcos_semaphore_post(&state->capture.start_sem);
}
if (size == 0 || ! buffer)
{
vcos_log_error("%s: capture failed", VCOS_FUNCTION);
rc = -1;
goto end;
}
raspitexutil_brga_to_rgba(buffer, size);
rc = write_tga(output_file, state->width, state->height, buffer, size);
fflush(output_file);
end:
free(buffer);
return rc;
}
