/** Documented at declaration */
void
gpujpeg_image_convert(const char* input, const char* output, struct gpujpeg_image_parameters param_image_from,
struct gpujpeg_image_parameters param_image_to)
{
assert(param_image_from.width == param_image_to.width);
assert(param_image_from.height == param_image_to.height);
assert(param_image_from.comp_count == param_image_to.comp_count);
// Load image
int image_size = gpujpeg_image_calculate_size(¶m_image_from);
uint8_t* image = NULL;
if ( gpujpeg_image_load_from_file(input, &image, &image_size) != 0 ) {
fprintf(stderr, "[GPUJPEG] [Error] Failed to load image [%s]!\n", input);
return;
}
struct gpujpeg_coder coder;
gpujpeg_set_default_parameters(&coder.param);
coder.param.color_space_internal = GPUJPEG_RGB;
// Initialize coder and preprocessor
coder.param_image = param_image_from;
assert(gpujpeg_coder_init(&coder) == 0);
assert(gpujpeg_preprocessor_encoder_init(&coder) == 0);
// Perform preprocessor
assert(cudaMemcpy(coder.d_data_raw, image, coder.data_raw_size * sizeof(uint8_t), cudaMemcpyHostToDevice) == cudaSuccess);
assert(gpujpeg_preprocessor_encode(&coder) == 0);
// Save preprocessor result
uint8_t* buffer = NULL;
assert(cudaMallocHost((void**)&buffer, coder.data_size * sizeof(uint8_t)) == cudaSuccess);
assert(buffer != NULL);
assert(cudaMemcpy(buffer, coder.d_data, coder.data_size * sizeof(uint8_t), cudaMemcpyDeviceToHost) == cudaSuccess);
// Deinitialize decoder
gpujpeg_coder_deinit(&coder);
// Initialize coder and postprocessor
coder.param_image = param_image_to;
assert(gpujpeg_coder_init(&coder) == 0);
assert(gpujpeg_preprocessor_decoder_init(&coder) == 0);
// Perform postprocessor
assert(cudaMemcpy(coder.d_data, buffer, coder.data_size * sizeof(uint8_t), cudaMemcpyHostToDevice) == cudaSuccess);
assert(gpujpeg_preprocessor_decode(&coder) == 0);
// Save preprocessor result
assert(cudaMemcpy(coder.data_raw, coder.d_data_raw, coder.data_raw_size * sizeof(uint8_t), cudaMemcpyDeviceToHost) == cudaSuccess);
if ( gpujpeg_image_save_to_file(output, coder.data_raw, coder.data_raw_size) != 0 ) {
fprintf(stderr, "[GPUJPEG] [Error] Failed to save image [%s]!\n", output);
return;
}
// Deinitialize decoder
gpujpeg_coder_deinit(&coder);
}
/** Documented at declaration */
int
gpujpeg_encoder_destroy(struct gpujpeg_encoder* encoder)
{
assert(encoder != NULL);
GPUJPEG_CUSTOM_TIMER_DESTROY(encoder->def);
GPUJPEG_CUSTOM_TIMER_DESTROY(encoder->in_gpu);
if ( gpujpeg_coder_deinit(&encoder->coder) != 0 )
return -1;
for ( int comp_type = 0; comp_type < GPUJPEG_COMPONENT_TYPE_COUNT; comp_type++ ) {
if ( encoder->table_quantization[comp_type].d_table != NULL )
cudaFree(encoder->table_quantization[comp_type].d_table);
}
if ( encoder->writer != NULL )
gpujpeg_writer_destroy(encoder->writer);
free(encoder);
return 0;
}