#endif
#include "Game.h"
-#include "IL/il.h"
-#include "IL/ilu.h"
-#include "IL/ilut.h"
+
+#ifndef USE_DEVIL
+# ifdef WIN32
+# define USE_DEVIL
+# endif
+#endif
+
+#if USE_DEVIL
+ #include "IL/il.h"
+ #include "IL/ilu.h"
+ #include "IL/ilut.h"
+#else
+ // just use libpng and libjpg directly; it's lighter-weight and easier
+ // to manage the dependencies on Linux...
+ extern "C" {
+ #include "png.h"
+ #include "jpeglib.h"
+ }
+ static bool load_image(const char * fname, TGAImageRec & tex);
+ static bool load_png(const char * fname, TGAImageRec & tex);
+ static bool load_jpg(const char * fname, TGAImageRec & tex);
+#endif
// ADDED GWC
#ifdef _MSC_VER
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glAlphaFunc( GL_GREATER, 0.5f);
+#if USE_DEVIL
if (ilGetInteger(IL_VERSION_NUM) < IL_VERSION ||
iluGetInteger(ILU_VERSION_NUM) < ILU_VERSION ||
ilutGetInteger(ILUT_VERSION_NUM) < ILUT_VERSION)
ilEnable(IL_ORIGIN_SET);
ilOriginFunc(IL_ORIGIN_LOWER_LEFT);
+#endif
GLint width = kContextWidth;
GLint height = kContextHeight;
// game.Dispose();
+#if USE_DEVIL
ilShutDown();
+#endif
#if USE_SDL
SDL_Quit();
return false;
}
+ #if USE_DEVIL
ILstring f = strdup(ConvertFileName(fname));
if (!f)
{
}
*/
free(f);
+ #else
+ res = load_image(fname, tex);
+ //if (!res) printf("failed to load %s\n", fname);
+ #endif
return res;
}
void ScreenShot(const char * fname)
{
+ #if USE_DEVIL
ILstring f = strdup(fname);
if (!f)
{
ilDeleteImages(1, &iid);
free(f);
+ #else
+ STUBBED("Non-DevIL screenshot");
+ #endif
}
+#if !USE_DEVIL
+static bool load_image(const char *file_name, TGAImageRec &tex)
+{
+ char *ptr = strrchr(file_name, '.');
+ if (ptr)
+ {
+ if (stricmp(ptr+1, "png") == 0)
+ return load_png(file_name, tex);
+ else if (stricmp(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, TGAImageRec &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, TGAImageRec &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;
+ png_byte **rows = NULL;
+ bool retval = false;
+ png_byte **row_pointers = NULL;
+ FILE *fp = fopen(file_name, "rb");
+
+ if (fp == NULL)
+ 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,
+ png_voidp_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;
+
+ retval = malloc(width * height * 4);
+ if (!retval)
+ 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 (int 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:
+ png_destroy_read_struct(&png_ptr, &info_ptr, png_infopp_NULL);
+ fclose(fp);
+ return (retval);
+}
+
+#if 0
+void save_png(char *file_name /* , ... other image information ... */)
+{
+ FILE *fp;
+ png_structp png_ptr;
+ png_infop info_ptr;
+
+ /* open the file */
+ fp = fopen(file_name, "wb");
+ if (fp == NULL)
+ return (ERROR);
+
+ png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+ if (png_ptr == NULL)
+ {
+ fclose(fp);
+ return (ERROR);
+ }
+
+ info_ptr = png_create_info_struct(png_ptr);
+ if (info_ptr == NULL)
+ {
+ fclose(fp);
+ png_destroy_write_struct(&png_ptr, png_infopp_NULL);
+ return (ERROR);
+ }
+
+ if (setjmp(png_jmpbuf(png_ptr)))
+ {
+ /* If we get here, we had a problem reading the file */
+ fclose(fp);
+ png_destroy_write_struct(&png_ptr, &info_ptr);
+ return (ERROR);
+ }
+
+ png_init_io(png_ptr, fp);
+ png_write_png(png_ptr, info_ptr, png_transforms, png_voidp_NULL);
+ png_destroy_write_struct(&png_ptr, &info_ptr);
+ fclose(fp);
+ return (OK);
+}
+#endif
+
+#endif
+
projects / lugaru.git / blobdiff