X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=Source%2FOpenGL_Windows.cpp;h=475cd99bf1632e6a85f0a5f752b1cf8d691bf384;hb=97989f58ab13c64fbe05e629d2b2a024a2c3cfa4;hp=45e7b8b31db2beae284d2304f4ed6671cc89f13a;hpb=34ce0cdd42f673a04aa29ae148d2206420dfd813;p=lugaru.git diff --git a/Source/OpenGL_Windows.cpp b/Source/OpenGL_Windows.cpp index 45e7b8b..475cd99 100644 --- a/Source/OpenGL_Windows.cpp +++ b/Source/OpenGL_Windows.cpp @@ -24,19 +24,8 @@ along with Lugaru. If not, see . #include "Game.h" -#include -#include -#include - 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; @@ -64,6 +53,7 @@ extern bool visibleloading; #include #include #include +#include #include #include "gamegl.h" #include "MacCompatibility.h" @@ -756,260 +746,3 @@ int main(int argc, char **argv) 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; -} - - -