forked from len0rd/rockbox
Port of Duke Nukem 3D
This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL for Rockbox. Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9
This commit is contained in:
Franklin Wei
parent
01c6dcf6c7
commit
a855d62025
994 changed files with 336924 additions and 15 deletions
298
apps/plugins/sdl/SDL_image/IMG_tif.c
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298
apps/plugins/sdl/SDL_image/IMG_tif.c
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@ -0,0 +1,298 @@
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/*
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SDL_image: An example image loading library for use with SDL
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Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#if !defined(__APPLE__) || defined(SDL_IMAGE_USE_COMMON_BACKEND)
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/* This is a TIFF image file loading framework */
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#include <stdio.h>
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#include "SDL_image.h"
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#ifdef LOAD_TIF
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#include <tiffio.h>
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static struct {
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int loaded;
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void *handle;
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TIFF* (*TIFFClientOpen)(const char*, const char*, thandle_t, TIFFReadWriteProc, TIFFReadWriteProc, TIFFSeekProc, TIFFCloseProc, TIFFSizeProc, TIFFMapFileProc, TIFFUnmapFileProc);
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void (*TIFFClose)(TIFF*);
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int (*TIFFGetField)(TIFF*, ttag_t, ...);
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int (*TIFFReadRGBAImage)(TIFF*, uint32, uint32, uint32*, int);
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TIFFErrorHandler (*TIFFSetErrorHandler)(TIFFErrorHandler);
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} lib;
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#ifdef LOAD_TIF_DYNAMIC
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int IMG_InitTIF()
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{
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if ( lib.loaded == 0 ) {
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lib.handle = SDL_LoadObject(LOAD_TIF_DYNAMIC);
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if ( lib.handle == NULL ) {
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return -1;
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}
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lib.TIFFClientOpen =
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(TIFF* (*)(const char*, const char*, thandle_t, TIFFReadWriteProc, TIFFReadWriteProc, TIFFSeekProc, TIFFCloseProc, TIFFSizeProc, TIFFMapFileProc, TIFFUnmapFileProc))
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SDL_LoadFunction(lib.handle, "TIFFClientOpen");
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if ( lib.TIFFClientOpen == NULL ) {
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SDL_UnloadObject(lib.handle);
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return -1;
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}
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lib.TIFFClose =
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(void (*)(TIFF*))
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SDL_LoadFunction(lib.handle, "TIFFClose");
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if ( lib.TIFFClose == NULL ) {
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SDL_UnloadObject(lib.handle);
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return -1;
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}
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lib.TIFFGetField =
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(int (*)(TIFF*, ttag_t, ...))
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SDL_LoadFunction(lib.handle, "TIFFGetField");
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if ( lib.TIFFGetField == NULL ) {
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SDL_UnloadObject(lib.handle);
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return -1;
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}
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lib.TIFFReadRGBAImage =
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(int (*)(TIFF*, uint32, uint32, uint32*, int))
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SDL_LoadFunction(lib.handle, "TIFFReadRGBAImage");
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if ( lib.TIFFReadRGBAImage == NULL ) {
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SDL_UnloadObject(lib.handle);
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return -1;
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}
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lib.TIFFSetErrorHandler =
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(TIFFErrorHandler (*)(TIFFErrorHandler))
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SDL_LoadFunction(lib.handle, "TIFFSetErrorHandler");
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if ( lib.TIFFSetErrorHandler == NULL ) {
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SDL_UnloadObject(lib.handle);
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return -1;
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}
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}
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++lib.loaded;
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return 0;
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}
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void IMG_QuitTIF()
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{
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if ( lib.loaded == 0 ) {
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return;
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}
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if ( lib.loaded == 1 ) {
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SDL_UnloadObject(lib.handle);
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}
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--lib.loaded;
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}
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#else
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int IMG_InitTIF()
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{
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if ( lib.loaded == 0 ) {
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lib.TIFFClientOpen = TIFFClientOpen;
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lib.TIFFClose = TIFFClose;
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lib.TIFFGetField = TIFFGetField;
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lib.TIFFReadRGBAImage = TIFFReadRGBAImage;
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lib.TIFFSetErrorHandler = TIFFSetErrorHandler;
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}
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++lib.loaded;
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return 0;
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}
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void IMG_QuitTIF()
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{
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if ( lib.loaded == 0 ) {
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return;
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}
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if ( lib.loaded == 1 ) {
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}
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--lib.loaded;
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}
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#endif /* LOAD_TIF_DYNAMIC */
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/*
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* These are the thunking routine to use the SDL_RWops* routines from
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* libtiff's internals.
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*/
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static tsize_t tiff_read(thandle_t fd, tdata_t buf, tsize_t size)
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{
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return SDL_RWread((SDL_RWops*)fd, buf, 1, size);
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}
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static toff_t tiff_seek(thandle_t fd, toff_t offset, int origin)
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{
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return SDL_RWseek((SDL_RWops*)fd, offset, origin);
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}
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static tsize_t tiff_write(thandle_t fd, tdata_t buf, tsize_t size)
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{
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return SDL_RWwrite((SDL_RWops*)fd, buf, 1, size);
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}
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static int tiff_close(thandle_t fd)
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{
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/*
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* We don't want libtiff closing our SDL_RWops*, but if it's not given
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* a routine to try, and if the image isn't a TIFF, it'll segfault.
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*/
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return 0;
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}
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static int tiff_map(thandle_t fd, tdata_t* pbase, toff_t* psize)
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{
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return (0);
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}
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static void tiff_unmap(thandle_t fd, tdata_t base, toff_t size)
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{
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return;
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}
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static toff_t tiff_size(thandle_t fd)
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{
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Uint32 save_pos;
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toff_t size;
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save_pos = SDL_RWtell((SDL_RWops*)fd);
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SDL_RWseek((SDL_RWops*)fd, 0, RW_SEEK_END);
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size = SDL_RWtell((SDL_RWops*)fd);
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SDL_RWseek((SDL_RWops*)fd, save_pos, RW_SEEK_SET);
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return size;
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}
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int IMG_isTIF(SDL_RWops* src)
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{
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int start;
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int is_TIF;
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Uint8 magic[4];
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if ( !src )
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return 0;
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start = SDL_RWtell(src);
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is_TIF = 0;
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if ( SDL_RWread(src, magic, 1, sizeof(magic)) == sizeof(magic) ) {
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if ( (magic[0] == 'I' &&
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magic[1] == 'I' &&
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magic[2] == 0x2a &&
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magic[3] == 0x00) ||
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(magic[0] == 'M' &&
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magic[1] == 'M' &&
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magic[2] == 0x00 &&
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magic[3] == 0x2a) ) {
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is_TIF = 1;
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}
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}
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SDL_RWseek(src, start, RW_SEEK_SET);
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return(is_TIF);
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}
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SDL_Surface* IMG_LoadTIF_RW(SDL_RWops* src)
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{
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int start;
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TIFF* tiff;
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SDL_Surface* surface = NULL;
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Uint32 img_width, img_height;
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Uint32 Rmask, Gmask, Bmask, Amask;
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Uint32 x, y;
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Uint32 half;
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if ( !src ) {
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/* The error message has been set in SDL_RWFromFile */
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return NULL;
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}
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start = SDL_RWtell(src);
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if ( !IMG_Init(IMG_INIT_TIF) ) {
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return NULL;
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}
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/* turn off memory mapped access with the m flag */
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tiff = lib.TIFFClientOpen("SDL_image", "rm", (thandle_t)src,
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tiff_read, tiff_write, tiff_seek, tiff_close, tiff_size, tiff_map, tiff_unmap);
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if(!tiff)
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goto error;
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/* Retrieve the dimensions of the image from the TIFF tags */
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lib.TIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &img_width);
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lib.TIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &img_height);
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Rmask = 0x000000FF;
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Gmask = 0x0000FF00;
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Bmask = 0x00FF0000;
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Amask = 0xFF000000;
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surface = SDL_AllocSurface(SDL_SWSURFACE, img_width, img_height, 32,
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Rmask, Gmask, Bmask, Amask);
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if(!surface)
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goto error;
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if(!lib.TIFFReadRGBAImage(tiff, img_width, img_height, surface->pixels, 0))
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goto error;
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/* libtiff loads the image upside-down, flip it back */
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half = img_height / 2;
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for(y = 0; y < half; y++)
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{
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Uint32 *top = (Uint32 *)surface->pixels + y * surface->pitch/4;
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Uint32 *bot = (Uint32 *)surface->pixels
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+ (img_height - y - 1) * surface->pitch/4;
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for(x = 0; x < img_width; x++)
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{
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Uint32 tmp = top[x];
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top[x] = bot[x];
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bot[x] = tmp;
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}
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}
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lib.TIFFClose(tiff);
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return surface;
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error:
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SDL_RWseek(src, start, RW_SEEK_SET);
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if ( surface ) {
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SDL_FreeSurface(surface);
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}
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return NULL;
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}
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#else
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int IMG_InitTIF()
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{
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IMG_SetError("TIFF images are not supported");
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return(-1);
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}
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void IMG_QuitTIF()
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{
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}
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/* See if an image is contained in a data source */
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int IMG_isTIF(SDL_RWops *src)
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{
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return(0);
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}
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/* Load a TIFF type image from an SDL datasource */
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SDL_Surface *IMG_LoadTIF_RW(SDL_RWops *src)
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{
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return(NULL);
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}
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#endif /* LOAD_TIF */
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#endif /* !defined(__APPLE__) || defined(SDL_IMAGE_USE_COMMON_BACKEND) */
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