#include "Game.h"
-#include <jpeglib.h>
-#include <png.h>
-#include <zlib.h>
-
using namespace Game;
-bool load_image(const char * fname, ImageRec & tex);
-static bool load_png(const char * fname, ImageRec & tex);
-static bool load_jpg(const char * fname, ImageRec & tex);
-bool save_image(const char * fname);
-static bool save_png(const char * fname);
-
-
#include "openal_wrapper.h"
extern float multiplier;
#include <string.h>
#include <fstream>
#include <iostream>
+#include <zlib.h>
#include <set>
#include "gamegl.h"
#include "MacCompatibility.h"
return -1;
}
-
-
-
-// --------------------------------------------------------------------------
-
-bool load_image(const char *file_name, ImageRec &tex)
-{
- if (visibleloading)
- Game::LoadingScreen();
-
- if ( tex.data == NULL )
- return false;
-
- const char *ptr = strrchr((char *)file_name, '.');
- if (ptr) {
- if (strcasecmp(ptr + 1, "png") == 0)
- return load_png(file_name, tex);
- else if (strcasecmp(ptr + 1, "jpg") == 0)
- return load_jpg(file_name, tex);
- }
-
- STUBBED("Unsupported image type");
- return false;
-}
-
-struct my_error_mgr {
- struct jpeg_error_mgr pub; /* "public" fields */
- jmp_buf setjmp_buffer; /* for return to caller */
-};
-typedef struct my_error_mgr * my_error_ptr;
-
-
-static void my_error_exit(j_common_ptr cinfo)
-{
- struct my_error_mgr *err = (struct my_error_mgr *)cinfo->err;
- longjmp(err->setjmp_buffer, 1);
-}
-
-/* stolen from public domain example.c code in libjpg distribution. */
-static bool load_jpg(const char *file_name, ImageRec &tex)
-{
- struct jpeg_decompress_struct cinfo;
- struct my_error_mgr jerr;
- JSAMPROW buffer[1]; /* Output row buffer */
- int row_stride; /* physical row width in output buffer */
- FILE *infile = fopen(file_name, "rb");
-
- if (infile == NULL)
- return false;
-
- cinfo.err = jpeg_std_error(&jerr.pub);
- jerr.pub.error_exit = my_error_exit;
- if (setjmp(jerr.setjmp_buffer)) {
- jpeg_destroy_decompress(&cinfo);
- fclose(infile);
- return false;
- }
-
- jpeg_create_decompress(&cinfo);
- jpeg_stdio_src(&cinfo, infile);
- (void) jpeg_read_header(&cinfo, TRUE);
-
- cinfo.out_color_space = JCS_RGB;
- cinfo.quantize_colors = 0;
- (void) jpeg_calc_output_dimensions(&cinfo);
- (void) jpeg_start_decompress(&cinfo);
-
- row_stride = cinfo.output_width * cinfo.output_components;
- tex.sizeX = cinfo.output_width;
- tex.sizeY = cinfo.output_height;
- tex.bpp = 24;
-
- while (cinfo.output_scanline < cinfo.output_height) {
- buffer[0] = (JSAMPROW)(char *)tex.data +
- ((cinfo.output_height - 1) - cinfo.output_scanline) * row_stride;
- (void) jpeg_read_scanlines(&cinfo, buffer, 1);
- }
-
- (void) jpeg_finish_decompress(&cinfo);
- jpeg_destroy_decompress(&cinfo);
- fclose(infile);
-
- return true;
-}
-
-
-/* stolen from public domain example.c code in libpng distribution. */
-static bool load_png(const char *file_name, ImageRec &tex)
-{
- bool hasalpha = false;
- png_structp png_ptr = NULL;
- png_infop info_ptr = NULL;
- png_uint_32 width, height;
- int bit_depth, color_type, interlace_type;
- bool retval = false;
- png_byte **row_pointers = NULL;
- FILE *fp = fopen(file_name, "rb");
-
- if (fp == NULL) {
- cerr << file_name << " not found" << endl;
- return(NULL);
- }
-
- png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
- if (png_ptr == NULL)
- goto png_done;
-
- info_ptr = png_create_info_struct(png_ptr);
- if (info_ptr == NULL)
- goto png_done;
-
- if (setjmp(png_jmpbuf(png_ptr)))
- goto png_done;
-
- png_init_io(png_ptr, fp);
- png_read_png(png_ptr, info_ptr,
- PNG_TRANSFORM_STRIP_16 | PNG_TRANSFORM_PACKING,
- NULL);
- png_get_IHDR(png_ptr, info_ptr, &width, &height,
- &bit_depth, &color_type, &interlace_type, NULL, NULL);
-
- if (bit_depth != 8) // transform SHOULD handle this...
- goto png_done;
-
- if (color_type & PNG_COLOR_MASK_PALETTE) // !!! FIXME?
- goto png_done;
-
- if ((color_type & PNG_COLOR_MASK_COLOR) == 0) // !!! FIXME?
- goto png_done;
-
- hasalpha = ((color_type & PNG_COLOR_MASK_ALPHA) != 0);
- row_pointers = png_get_rows(png_ptr, info_ptr);
- if (!row_pointers)
- goto png_done;
-
- if (!hasalpha) {
- png_byte *dst = tex.data;
- for (int i = height - 1; i >= 0; i--) {
- png_byte *src = row_pointers[i];
- for (unsigned j = 0; j < width; j++) {
- dst[0] = src[0];
- dst[1] = src[1];
- dst[2] = src[2];
- dst[3] = 0xFF;
- src += 3;
- dst += 4;
- }
- }
- }
-
- else {
- png_byte *dst = tex.data;
- int pitch = width * 4;
- for (int i = height - 1; i >= 0; i--, dst += pitch)
- memcpy(dst, row_pointers[i], pitch);
- }
-
- tex.sizeX = width;
- tex.sizeY = height;
- tex.bpp = 32;
- retval = true;
-
-png_done:
- if (!retval) {
- cerr << "There was a problem loading " << file_name << endl;
- }
- png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- if (fp)
- fclose(fp);
- return (retval);
-}
-
-
-bool save_image(const char *file_name)
-{
- const char *ptr = strrchr((char *)file_name, '.');
- if (ptr) {
- if (strcasecmp(ptr + 1, "png") == 0)
- return save_png(file_name);
- }
-
- STUBBED("Unsupported image type");
- return false;
-}
-
-
-static bool save_png(const char *file_name)
-{
- FILE *fp = NULL;
- png_structp png_ptr = NULL;
- png_infop info_ptr = NULL;
- bool retval = false;
-
- fp = fopen(file_name, "wb");
- if (fp == NULL)
- return false;
-
- png_bytep *row_pointers = new png_bytep[kContextHeight];
- png_bytep screenshot = new png_byte[kContextWidth * kContextHeight * 3];
- if ((!screenshot) || (!row_pointers))
- goto save_png_done;
-
- glGetError();
- glReadPixels(0, 0, kContextWidth, kContextHeight,
- GL_RGB, GL_UNSIGNED_BYTE, screenshot);
- if (glGetError() != GL_NO_ERROR)
- goto save_png_done;
-
- for (int i = 0; i < kContextHeight; i++)
- row_pointers[i] = screenshot + ((kContextWidth * ((kContextHeight - 1) - i)) * 3);
-
- png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
- if (png_ptr == NULL)
- goto save_png_done;
-
- info_ptr = png_create_info_struct(png_ptr);
- if (info_ptr == NULL)
- goto save_png_done;
-
- if (setjmp(png_jmpbuf(png_ptr)))
- goto save_png_done;
-
- png_init_io(png_ptr, fp);
-
- if (setjmp(png_jmpbuf(png_ptr)))
- goto save_png_done;
-
- png_set_IHDR(png_ptr, info_ptr, kContextWidth, kContextHeight,
- 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
- PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-
- png_write_info(png_ptr, info_ptr);
-
- if (setjmp(png_jmpbuf(png_ptr)))
- goto save_png_done;
-
- png_write_image(png_ptr, row_pointers);
-
- if (setjmp(png_jmpbuf(png_ptr)))
- goto save_png_done;
-
- png_write_end(png_ptr, NULL);
- retval = true;
-
-save_png_done:
- png_destroy_write_struct(&png_ptr, &info_ptr);
- delete[] screenshot;
- delete[] row_pointers;
- if (fp)
- fclose(fp);
- if (!retval)
- unlink(ConvertFileName(file_name));
- return retval;
-}
-
-
-
projects / lugaru.git / blobdiff