void render_png(Scene *scene, bstring output_file)
{
int width = scene->canvas->width;
int height = scene->canvas->height;
Colour **data = scene->canvas->data;
Colour colour;
unsigned err;
unsigned char* image = malloc(width * height * 4);
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
// Fix image being upside down
// We trace from bottom left to top right
// Logepng goes topleft to bottom right
int yc = (height - 1) - y;
colour = data[x][y];
image[4 * width * yc + 4 * x + 0] = (uint8_t)colour.red;
image[4 * width * yc + 4 * x + 1] = (uint8_t)colour.green;
image[4 * width * yc + 4 * x + 2] = (uint8_t)colour.blue;
image[4 * width * yc + 4 * x + 3] = (uint8_t)colour.alpha;
}
}
err = lodepng_encode32_file(bdata(output_file), image, width, height);
if (err) {
printf("error %u: %s\n", err, lodepng_error_text(err));
}
}
void sobelize(char* input_filename, char* output_filename, int thread_count)
{
unsigned error;
unsigned char *image, *new_image;
unsigned width, height;
// load image from PNG into C array
error = lodepng_decode32_file(&image, &width, &height, input_filename);
if(error) printf("error %u: %s\n", error, lodepng_error_text(error));
new_image = malloc(width * height * 4 * sizeof(unsigned char));
struct timeval start, end; // struct used to compute execution time
gettimeofday(&start, NULL); // set starting point
/* TODO: create your thread team here and send each thread an argument
telling it which part of "image" to process
remember to join all threads!
*/
gettimeofday(&end, NULL);
printf("\n\nAlgorithm's computational part duration : %ld\n", \
((end.tv_sec * 1000000 + end.tv_usec) - (start.tv_sec * 1000000 + start.tv_usec)));
lodepng_encode32_file(output_filename, new_image, width, height);
free(image);
free(new_image);
}
int main(int argc, char* argv[]) {
if (argc < 2) {
printf("No images specified.\n");
printf("Press ENTER to continue...\n");
while(getchar() != '\n');
exit(EXIT_FAILURE);
}
unsigned int error;
for (unsigned argi = 1; argi < argc; argi++) {
char* path = argv[argi];
// Load image
unsigned char* pixels;
unsigned width;
unsigned height;
error = lodepng_decode32_file(&pixels, &width, &height, path);
if (error) {
const char* error_text = lodepng_error_text(error);
printf("Error loading `%s`: %s\n", path, error_text);
printf("Press ENTER to continue...\n");
while(getchar() != '\n');
exit(EXIT_FAILURE);
}
printf("Performing on `%s`...\n", path);
// Initialize 'nearest' map and jump flood
unsigned size = width * height;
ivec2* nearests = malloc(size * sizeof(ivec2));
init_nearests(nearests, pixels, width, height);
jump_flood(nearests, width, height);
// Copy colors into invisible pixels and write image
copy_nearests(nearests, pixels, width, height);
free(nearests);
error = lodepng_encode32_file(path, pixels, width, height);
free(pixels);
if (error) {
const char* error_text = lodepng_error_text(error);
printf("Error saving to `%s`: %s\n", path, error_text);
printf("Press ENTER to continue...\n");
while(getchar() != '\n');
exit(EXIT_FAILURE);
}
}
return EXIT_SUCCESS;
}
//function for encoding a PNG
void encode(const char *filename,Image *encodeImage)
{
int width=encodeImage->width;
int height=encodeImage->height;
unsigned char *image=(unsigned char*)malloc(sizeof(unsigned char)*4*height*width);
int row,col;
int imageWidth=4*width;
uint8_t *redChannel=encodeImage->redChannel;
uint8_t *blueChannel=encodeImage->blueChannel;
uint8_t *greenChannel=encodeImage->greenChannel;
uint8_t *alphaChannel=encodeImage->alphaChannel;
for(row=0;row<height;row++)
for(col=0;col<width;col++)
{
image[imageWidth*row+4*col+0]=redChannel[row*width+col];
image[imageWidth*row+4*col+1]=blueChannel[row*width+col];
image[imageWidth*row+4*col+2]=greenChannel[row*width+col];
image[imageWidth*row+4*col+3]=alphaChannel[row*width+col];
}
unsigned int error=lodepng_encode32_file(filename,image,width,height);
if(error)
printf("error %u:%s\n",error,lodepng_error_text(error));
free(image);
}
/* exports the level as png image */
void export_level(char *filename) {
/* add file extension if not given */
if (!strstr(filename, ".png")) {
strcat(filename, ".png");
}
/* allocate memory for every block * 4 (RGBA) */
unsigned char *image = malloc(js_level_width * js_level_height * 4);
/* visit every R index and write R, G, B, A --> 4 steps */
for (int i = 0; i < js_level_width * js_level_height * 4; i += 4) {
/* get color */
const struct color block = blocks[js_level[i / 4]];
/* set R, G, B and A */
image[i + 0] = block.r;
image[i + 1] = block.g;
image[i + 2] = block.b;
image[i + 3] = 255;
}
/* encode the image with lodepng */
unsigned error = lodepng_encode32_file(filename,
image,
js_level_width,
js_level_height);
/* if there's an error, print it! */
if (error)
printf("Error %u: %s\n", error, lodepng_error_text(error));
/* free memory for image */
free(image);
}
int ConvertIcon(FILE *in, char *out, u32 offset, s32 width)
{
// In and Out Buffers
u32 ctpk_size = width*width*sizeof(u16);
u32 bmp_encoded_buff_size = width*width*3;
u32 bmp_decoded_buff_size = width*width*4;
u16 *ctpk = malloc(ctpk_size);
u8 *bmp_encoded = malloc(bmp_encoded_buff_size);
u8 *bmp_decoded = malloc(bmp_decoded_buff_size);
// Reading CTPK (CTR Texture Package)
fseek(in,offset,SEEK_SET);
fread(ctpk,ctpk_size,1,in);
// Getting Decoding CTPK and encoding to 24-bit BMP data
CTPKtoBMP(ctpk,bmp_encoded,width);
free(ctpk);
// Decoding BMP data
DecodeBMPData(bmp_encoded,bmp_decoded,(u16)width);
free(bmp_encoded);
// Writing PNG
unsigned result = lodepng_encode32_file(out, bmp_decoded, width, width);
free(bmp_decoded);
return (int)result;
}
void ScreenCapture()
{
int viewPort[4];
glGetIntegerv(GL_VIEWPORT, viewPort);
int width = viewPort[2] - viewPort[0];
int height = viewPort[3] - viewPort[1];
SDL_Surface* surface = SDL_CreateRGBSurface(0, width, height, 32, 0xff, 0xff << 8, 0xff << 16, 0xff << 24);
if (!surface)
return;
glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);
// This is a fancy swap, for the screen pixels:
int i;
U32* buffer = new U32[width];
for (i = 0; i < height / 2; ++i)
{
memcpy(buffer,
((U32*)surface->pixels + i*width),
width * 4);
memcpy(((U32*)surface->pixels + i*width),
((U32*)surface->pixels + (height - 1 - i)*width),
width * 4);
memcpy(((U32*)surface->pixels + (height - 1 - i)*width),
buffer,
width * 4);
}
delete[] buffer;
// And now, set all the alphas to opaque:
for (i = 0; i < width*height; ++i)
*((U32*)surface->pixels + i) |= 0xff000000;
grinliz::Rectangle2I r;
r.Set(0, 0, width - 1, height - 1);
if (width == 0 || height == 0) {
return;
}
int index = 0;
grinliz::GLString path;
for (index = 0; index < 100; ++index)
{
char buf[32];
grinliz::SNPrintf(buf, 32, "cap%02d.png", index);
GetSystemPath(GAME_SAVE_DIR, buf, &path);
FILE* fp = fopen(path.c_str(), "rb");
if (fp)
fclose(fp);
else
break;
}
if (index < 100) {
lodepng_encode32_file(path.c_str(), (const unsigned char*)surface->pixels, width, height);
}
SDL_FreeSurface(surface);
}
int pixMap_write(pixMap *p,char *filename){
int error=0;
if(lodepng_encode32_file(filename, p->image, p->width, p->height)){
fprintf(stderr,"error %u: %s\n", error, lodepng_error_text(error));
return 1;
}
return 0;
}
/*
Example 1
Encode from raw pixels to disk with a single function call
The image argument has width * height RGBA pixels or width * height * 4 bytes
*/
void encodeOneStep(const char* filename, const unsigned char* image, unsigned width, unsigned height)
{
/*Encode the image*/
unsigned error = lodepng_encode32_file(filename, image, width, height);
/*if there's an error, display it*/
if(error) printf("error %u: %s\n", error, lodepng_error_text(error));
}
void sobelize(char* input_filename, char* output_filename, int thread_count)
{
unsigned error;
unsigned pos[2];
// unsigned char *image, *new_image;
// unsigned width, height;
// load image from PNG into C array
error = lodepng_decode32_file(&image, &width, &height, input_filename);
if(error) printf("error %u: %s\n", error, lodepng_error_text(error));
new_image = malloc(width * height * 4 * sizeof(unsigned char));
struct timeval start, end; // struct used to compute execution time
gettimeofday(&start, NULL); // set starting point
unsigned height_piece = ceil(height/(float)(thread_count));
fprintf(stdout, "height = %d\n", height);
/* TODO: create your thread team here and send each thread an argument
telling it which part of "image" to process
remember to join all threads!
*/
pthread_t threads[thread_count];
for(int i = 0; i < thread_count; i++){
pos[0] = i*height_piece;
pos[1] = MIN((i+1)*height_piece, height);
unsigned *j = malloc(2*sizeof(unsigned));
memcpy(j, pos, 2*sizeof(unsigned));
int c = pthread_create(&threads[i], NULL, &worker_thread, j);
if (c != 0) {
fprintf(stderr, "Error creating pthreads exiting...\n");
exit(1);
}
}
for(int i = 0; i < thread_count; i++) {
int c = pthread_join(threads[i], NULL);
if (c != 0) {
fprintf(stderr, "Error joining pthreads exiting...\n");
exit(1);
}
}
gettimeofday(&end, NULL);
printf("\n\nAlgorithm's computational part duration : %ld\n", \
((end.tv_sec * 1000000 + end.tv_usec) - (start.tv_sec * 1000000 + start.tv_usec)));
lodepng_encode32_file(output_filename, new_image, width, height);
free(image);
free(new_image);
}
int main(int argc,char *argv[])
{
BM mainBM;
OPTIONS options;
LOCATIONHISTORY locationHistory;
int error;
//set vars to zero
memset(&options, 0, sizeof(options)); //set all the option results to 0
memset(&mainBM, 0, sizeof(mainBM));
//Display introductory text
PrintIntro(argv[0]);
//locationHistory.jsonfilename="LocationHistory.json"; //default
if (argc == 1) PrintUsage(argv[0]); //print usage instructions
HandleCLIOptions(argc, argv, &options);
PrintOptions(&options);
RationaliseOptions(&options);
//Initialise the bitmap
bitmapInit(&mainBM, &options, &locationHistory);
DrawGrid(&mainBM);
//ColourWheel(mainBM, 100, 100, 100, 5); //Color wheel test of lines and antialiasing
fprintf(stdout, "Loading locations from %s.\r\n", mainBM.options->jsonfilenamefinal);
LoadLocations(&locationHistory, &mainBM.options->jsonfilenamefinal[0]);
fprintf(stdout, "Plotting paths.\r\n");
PlotPaths(&mainBM, &locationHistory, &options);
// HeatmapPlot(&mainBM, &locationHistory);
fprintf(stdout, "Ploted lines between: %i points\r\n", mainBM.countPoints);
printf("From:\t%s\r\n", asctime(localtime(&locationHistory.earliesttimestamp)));
printf("To:\t%s\r\n", asctime(localtime(&locationHistory.latesttimestamp)));
FreeLocations(&locationHistory);
//Write the PNG file
fprintf(stdout, "Writing to %s.\r\n", mainBM.options->pngfilenamefinal);
error = lodepng_encode32_file(mainBM.options->pngfilenamefinal, mainBM.bitmap, mainBM.width, mainBM.height);
if(error) fprintf(stderr, "LodePNG error %u: %s\n", error, lodepng_error_text(error));
//Write KML file
fprintf(stdout, "Writing to %s.\r\n", mainBM.options->kmlfilenamefinal);
WriteKMLFile(&mainBM);
bitmapDestroy(&mainBM);
fprintf(stdout, "Program finished.");
return 0;
}
void Film::write_to_image() {
unsigned error = lodepng_encode32_file(output, image, width, height);
if (error) {
printf("Lodepng error: %u: %s\n", error, lodepng_error_text(error));
exit(EXIT_FAILURE);
}
}
void save_mandelbrot(const char* file_name, uint width, uint height, uint max_iterations)
{
uchar* host_image;
size_t image_size;
run_mandelbrot(&host_image, &image_size,
width, height,
max_iterations,
X_SCALE, Y_SCALE,
X_ADJUST, Y_ADJUST);
lodepng_encode32_file(file_name, host_image, width, height);
free(host_image);
}
int main(int argc, char **argv) {
unsigned error;
unsigned char* image;
unsigned width, height;
unsigned char* png;
size_t pngsize;
LodePNGState state;
if (argc != 3) {
fprintf(stderr, "Usage: %s input-8bit.png output-32bit.png\n\nVersion 0.2, © 2014 Kornel Lesiński <*****@*****.**>\nhttps://github.com/pornel/undither\n\n", argv[0]);
return 1;
}
lodepng_state_init(&state);
state.decoder.color_convert = 0;
state.info_raw.colortype = LCT_PALETTE;
state.info_raw.bitdepth = 8;
error = lodepng_load_file(&png, &pngsize, argv[1]);
if (!error) {
error = lodepng_decode(&image, &width, &height, &state, png, pngsize);
}
free(png);
if (error) {
fprintf(stderr, "error when loading '%s': %s\n", argv[1], lodepng_error_text(error));
return error;
}
if (state.info_raw.bitdepth != 8) {
fprintf(stderr, "Only 256-color images are supported\n");
return 1;
}
const rgba *pal = (rgba *)state.info_raw.palette;
if (!pal || state.info_raw.colortype != LCT_PALETTE) {
fprintf(stderr, "No pal?\n");
return 1;
}
rgba *out = malloc(width*height*4);
undither(image, pal, width, height, out);
lodepng_state_cleanup(&state);
free(image);
error = lodepng_encode32_file(argv[2], (unsigned char*)out, width, height);
if (error) {
fprintf(stderr, "error when saving '%s': %s\n", argv[2], lodepng_error_text(error));
return error;
}
return 0;
}
void binarize(char* input_filename, char* output_filename, int thread_count)
{
unsigned error;
unsigned width, height;
// load image from PNG into C array
error = lodepng_decode32_file(&image, &width, &height, input_filename);
if(error) printf("error %u: %s\n", error, lodepng_error_text(error));
new_image = malloc(width * height * 4 * sizeof(unsigned char));
struct timeval start, end; // struct used to compute execution time
gettimeofday(&start, NULL); // set starting point
/* TODO: create your thread team here and send each thread an argument
telling it which part of "image" to process
remember to join all threads!
*/
total_width = width;
total_height = height;
partitions = width/thread_count;
part = (width * height)/thread_count;
int threads[thread_count];
int i;
for (i = 0; i < thread_count; i++) {
pthread_t t;
threads[i] = pthread_create(&t, NULL, worker_thread, (void*) i);
}
int j;
for (j = 0; j < thread_count; j++){
pthread_join(threads[i], NULL);
}
gettimeofday(&end, NULL);
printf("\n\nAlgorithm's computational part duration : %ld\n", \
((end.tv_sec * 1000000 + end.tv_usec) - (start.tv_sec * 1000000 + start.tv_usec)));
lodepng_encode32_file(output_filename, new_image, width, height);
free(image);
free(new_image);
}
int LodePngCoder::Encode(const char *filename, const unsigned char *image,
unsigned w, unsigned h)
{
if (!filename || !image) return -1;
int res = lodepng_encode32_file(filename, image, w, h);
if (res != 0)
{
LOG_I("[LodePngCoder] fail to encode png, error:%d, %s", res,
lodepng_error_text(res));
}
return res;
}
bool Image::writePNG(const char *path) {
const char *cpath = platformCStringPath(path);
assertmsg( buffer!=0 , "image not initialized?" );
assertmsg( width <= 2048 && height <= 2048, "image too big" );
/*Same as lodepng_encode_file, but always encodes from 32-bit RGBA raw image.*/
unsigned error;
error = lodepng_encode32_file( cpath, buffer, width, height );
if(error) {
fprintf(stderr, "lodepng_encode32_file failed%d", error );
return false;
}
return true;
}
int winpr_image_write(wImage* image, const char* filename)
{
int status = -1;
if (image->type == WINPR_IMAGE_BITMAP)
{
status = winpr_bitmap_write(filename, image->data, image->width, image->height, image->bitsPerPixel);
}
else
{
int lodepng_status;
lodepng_status = lodepng_encode32_file(filename, image->data, image->width, image->height);
status = (lodepng_status) ? -1 : 1;
}
return status;
}
void sobelize(char* input_filename, char* output_filename)
{
unsigned error;
unsigned char *image, *new_image;
unsigned width, height;
error = lodepng_decode32_file(&image, &width, &height, input_filename);
if(error) printf("error %u: %s\n", error, lodepng_error_text(error));
new_image = malloc(width * height * 4 * sizeof(unsigned char));
struct timeval start, end; // struct used to compute execution time
gettimeofday(&start, NULL); // set starting point
/* TODO: Loop through the "image" and generate the "new_image". */
unsigned char value;
for (int i = 1; i < height-1; i++) {
for (int j = 1; j < width-1; j++) {
/* TODO: use the Sobel kernel on this pixel,
put the result into the "value" variable */
value = (abs((image[4*width*(i-1) + 4*(j-1)] + 2*image[4*width*(i-1) + 4*j]
+ image[4*width*(i-1) + 4*(j+1)]) - (image[4*width*(i+1) + 4*(j-1)]
+ 2*image[4*width*(i+1) + 4*j] + image[4*width*(i+1) + 4*(j+1)]))
+ abs((image[4*width*(i-1) + 4*(j+1)] + 2*image[4*width*(i) + 4*(j+1)]
+ image[4*width*(i+1) + 4*(j+1)]) - (image[4*width*(i-1) + 4*(j-1)]
+ 2*image[4*width*i + 4*(j-1)] + image[4*width*(i+1) + 4*(j-1)])));
new_image[4*width*i + 4*j] = value;
new_image[4*width*i + 4*j + 1] = value;
new_image[4*width*i + 4*j + 2] = value;
new_image[4*width*i + 4*j + 3] = 255;
}
}
gettimeofday(&end, NULL);
printf("\n\nAlgorithm's computational part duration : %ld\n", \
((end.tv_sec * 1000000 + end.tv_usec) - (start.tv_sec * 1000000 + start.tv_usec)));
lodepng_encode32_file(output_filename, new_image, width, height);
free(image);
free(new_image);
}
void binarize(char* input_filename, char* output_filename, int thread_count)
{
unsigned error;
unsigned char *image, *new_image;
unsigned width, height;
error = lodepng_decode32_file(&image, &width, &height, input_filename);
if(error) printf("error %u: %s\n", error, lodepng_error_text(error));
new_image = malloc(width * height * 4 * sizeof(unsigned char));
struct timeval start, end; // struct used to compute execution time
gettimeofday(&start, NULL); // set starting point
omp_set_num_threads(thread_count);
int i, j;
unsigned char value;
#pragma omp parallel for shared(new_image) private(i,j,value)
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
if (image[4*width*i + 4*j] > THRESHOLD) {
value = 255;
} else {
value = 0;
}
new_image[4*width*i + 4*j] = value;
new_image[4*width*i + 4*j + 1] = value;
new_image[4*width*i + 4*j + 2] = value;
new_image[4*width*i + 4*j + 3] = 255;
}
}
gettimeofday(&end, NULL);
printf("\n\nAlgorithm's computational part duration : %ld\n", \
((end.tv_sec * 1000000 + end.tv_usec) - (start.tv_sec * 1000000 + start.tv_usec)));
lodepng_encode32_file(output_filename, new_image, width, height);
free(image);
}
int main(int argc, char *argv[]){
if( argc==1 )
printf("\nPosterizeZX v1.11. Transform an image to ZX Spectrum colors (no color clash)\n"
" by AntonioVillena, 11 Nov 2013\n\n"
" PosterizeZX <input_file> <output_file>\n\n"
" <input_file> PNG input file\n"
" <output_file> PNG output file\n\n"
"Example: PosterizeZX work.png tiles.png\n"),
exit(0);
if( argc!=3 )
printf("\nInvalid number of parameters\n"),
exit(-1);
if( error= lodepng_decode32_file(&image, &width, &height, argv[1]) )
printf("\nError %u: %s\n", error, lodepng_error_text(error)),
exit(-1);
size= width*height;
pixel= image;
while ( size-- ){
min= 1e9;
for ( i= 0; i<15; i++ ){
calc= (pixel[0]-colors[i][0])*(pixel[0]-colors[i][0])
+ (pixel[1]-colors[i][1])*(pixel[1]-colors[i][1])
+ (pixel[2]-colors[i][2])*(pixel[2]-colors[i][2]);
if( calc<min )
min= calc,
minind= i;
}
pixel[0]= colors[minind][0];
pixel[1]= colors[minind][1];
pixel[2]= colors[minind][2];
pixel+= 4;
}
if( error= lodepng_encode32_file(argv[2], image, width, height) )
printf("Error %u: %s\n", error, lodepng_error_text(error)),
exit(-1);
free(image);
printf("\nFile posterized successfully\n");
}
void save_image(const image *img, const char *imgpath)
{
lodepng_encode32_file(imgpath, img->data, img->width, img->height);
}
int main(void) {
unsigned char* image;
unsigned cols, rows, error;
int input_channels;
int **pixel_values, *count_values, **new_pixel_values;
/*open image + handle error*/
input_channels = 4;
error = lodepng_decode32_file(&image, &cols, &rows, "LenaDark.png");
if(error) {
printf("error %u: %s\n", error, lodepng_error_text(error));}
else{
printf("Image successfully open!\n");}
/*print width + height*/
//printf("\nwidth = %u\n", width);
//printf("height = %u\n\n\n", height);
/*allocate pixel values 2D array*/
pixel_values = allocate_2d_array(rows, cols);
/*put pixel values in the array*/
make_grayscale_pixel_values_array(rows, cols, input_channels, image, pixel_values);
/*print pixel values*/
//print_pixel_values(width, height, pixel_values);
/*allocate + initialize array to count pixel values*/
count_values = (int*)malloc(256*sizeof(int));
initialize_1d_array(256, count_values);
/*count different pixel values*/
count_pixel_values(rows, cols, pixel_values, count_values);
/*allocate pixel values 2D array*/
new_pixel_values = allocate_2d_array(rows, cols);
/*histogram equalization*/
histogram_equalization(rows, cols, pixel_values, count_values, new_pixel_values);
/*change image*/
change_RGB_values(rows, cols, input_channels, image, new_pixel_values);
/*print RGB values*/
//print_RGB_values(width, height, input_channels, image);
/*Encode the image + error handling*/
error = lodepng_encode32_file("img_out.png", image, cols, rows);
if(error){
printf("error %u: %s\n", error, lodepng_error_text(error));}
else{
printf("Image successfully saved!\n");}
/*Deallocate memory*/
free(pixel_values);
free(image);
return EXIT_SUCCESS;
}
void Preview_save(Preview *self){
unsigned error = lodepng_encode32_file(self->imageName, self->imageData, self->width, self->height);
if(error) printf("error %u: %s\n", error, lodepng_error_text(error));
}
int main (int argc, char const *argv[]) {
int fd = open(argv[1], O_RDONLY);
assert(fd >= 0);
ahff_header_t info = { 0 };
READ_FULLY(fd, info.b, sizeof(ahff_header_t));
unsigned char *buf = malloc(info.s.datsize);
unsigned char *out = calloc(info.s.width * info.s.height, 4);
assert(buf && out);
READ_FULLY(fd, buf, info.s.datsize);
int len = strlen(argv[1]);
char *cp = strdup(argv[1]);
char *fn;
if (strcmp(cp + len - 5, ".ahff") == 0) {
memcpy(cp + len - 5, ".png\0", 5);
fn = cp;
} else {
fn = malloc(len + 5);
snprintf(fn, len + 5, "%s.png", cp);
free(cp);
}
printf("[>] %s\n", fn);
uint32_t point_count = info.s.width * info.s.height;
uint32_t expect_size = 0;
switch (info.s.pixel_format) {
case A8:
expect_size = point_count;
EXPECT_SIZE_CHK_AND_WARN();
copy_1bpp_alpha(buf, expect_size, out);
break;
case RGB24:
expect_size = point_count * 3;
EXPECT_SIZE_CHK_AND_WARN();
copy_3bpp_rgb(buf, expect_size, out);
break;
case RGB565:
expect_size = point_count * 2;
EXPECT_SIZE_CHK_AND_WARN();
copy_2bpp_rgb565(buf, expect_size, out);
break;
case RGBA4444:
expect_size = point_count * 2;
EXPECT_SIZE_CHK_AND_WARN();
copy_2bpp_rgba4444(buf, expect_size, out);
break;
case RGBA32:
expect_size = point_count * 4;
EXPECT_SIZE_CHK_AND_WARN();
memcpy(out, buf, expect_size);
break;
case ETC1RGB:
/* ETC1 encodes 4x4 blocks.
* So w and h must be multiples of 4. */
assert(info.s.width % 4 == 0);
assert(info.s.height % 4 == 0);
expect_size = point_count / 2;
EXPECT_SIZE_CHK_AND_WARN();
copy_etc1_rgb(buf, expect_size, out, info.s.width);
break;
default:
fprintf(stderr, "unknown pixel format %d\n", info.s.pixel_format);
goto end;
}
// flip_image_sideways(out, info.width, info.height);
flip_image_upside_down(out, info.s.width, info.s.height);
lodepng_encode32_file(fn, out, info.s.width, info.s.height);
end:
free(fn);
free(buf);
free(out);
return 0;
}
void write_png(char* filename, uint8_t* image, uint16_t width, uint16_t height) {
unsigned error = lodepng_encode32_file(filename, image, width, height);
if(error) printf("error %u: %s\n", error, lodepng_error_text(error));
}