mirror of https://github.com/OpenTTD/OpenTTD.git
(svn r23898) -Remove: PNG sprite loader.
This commit is contained in:
parent
2c3bca6ad9
commit
44abdccfd0
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@ -1079,8 +1079,6 @@
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<ClInclude Include="..\src\video\video_driver.hpp" />
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<ClCompile Include="..\src\spriteloader\grf.cpp" />
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<ClInclude Include="..\src\spriteloader\grf.hpp" />
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<ClCompile Include="..\src\spriteloader\png.cpp" />
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<ClInclude Include="..\src\spriteloader\png.hpp" />
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<ClInclude Include="..\src\spriteloader\spriteloader.hpp" />
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<ClCompile Include="..\src\newgrf.cpp" />
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<ClCompile Include="..\src\newgrf_airport.cpp" />
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@ -2466,12 +2466,6 @@
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<ClInclude Include="..\src\spriteloader\grf.hpp">
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<Filter>Sprite loaders</Filter>
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</ClInclude>
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<ClCompile Include="..\src\spriteloader\png.cpp">
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<Filter>Sprite loaders</Filter>
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</ClCompile>
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<ClInclude Include="..\src\spriteloader\png.hpp">
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<Filter>Sprite loaders</Filter>
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</ClInclude>
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<ClInclude Include="..\src\spriteloader\spriteloader.hpp">
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<Filter>Sprite loaders</Filter>
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</ClInclude>
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@ -3666,14 +3666,6 @@
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RelativePath=".\..\src\spriteloader\grf.hpp"
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>
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</File>
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<File
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RelativePath=".\..\src\spriteloader\png.cpp"
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>
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</File>
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<File
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RelativePath=".\..\src\spriteloader\png.hpp"
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>
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</File>
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<File
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RelativePath=".\..\src\spriteloader\spriteloader.hpp"
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>
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@ -3663,14 +3663,6 @@
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RelativePath=".\..\src\spriteloader\grf.hpp"
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>
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</File>
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<File
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RelativePath=".\..\src\spriteloader\png.cpp"
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>
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</File>
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<File
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RelativePath=".\..\src\spriteloader\png.hpp"
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>
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</File>
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<File
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RelativePath=".\..\src\spriteloader\spriteloader.hpp"
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>
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@ -868,10 +868,6 @@ video/video_driver.hpp
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# Sprite loaders
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spriteloader/grf.cpp
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spriteloader/grf.hpp
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#if PNG
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spriteloader/png.cpp
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spriteloader/png.hpp
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#end
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spriteloader/spriteloader.hpp
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# NewGRF
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@ -15,9 +15,6 @@
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#include "gfx_func.h"
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#include "zoom_func.h"
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#include "settings_type.h"
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#ifdef WITH_PNG
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#include "spriteloader/png.hpp"
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#endif /* WITH_PNG */
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#include "blitter/factory.hpp"
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#include "core/math_func.hpp"
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#include "core/mem_func.hpp"
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@ -386,28 +383,6 @@ static void *ReadSprite(const SpriteCache *sc, SpriteID id, SpriteType sprite_ty
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uint8 sprite_avail = 0;
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sprite[ZOOM_LVL_NORMAL].type = sprite_type;
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if (sprite_type == ST_NORMAL && BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth() == 32) {
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#ifdef WITH_PNG
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/* Try loading 32bpp graphics in case we are 32bpp output */
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SpriteLoaderPNG sprite_loader;
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sprite_avail = sprite_loader.LoadSprite(sprite, file_slot, sc->id, sprite_type, true);
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if (sprite_avail != 0) {
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if (ResizeSprites(sprite, sprite_avail, file_slot, sc->id)) {
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return BlitterFactoryBase::GetCurrentBlitter()->Encode(sprite, allocator);
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}
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}
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/* If the PNG couldn't be loaded, fall back to 8bpp grfs */
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#else
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static bool show_once = true;
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if (show_once) {
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DEBUG(misc, 0, "You are running a 32bpp blitter, but this build is without libpng support; falling back to 8bpp graphics");
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show_once = false;
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}
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#endif /* WITH_PNG */
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}
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SpriteLoaderGrf sprite_loader(sc->container_ver);
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if (sprite_type != ST_MAPGEN && BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth() == 32) {
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/* Try for 32bpp sprites first. */
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@ -1,222 +0,0 @@
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/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file png.cpp Reading sprites from png files. */
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#ifdef WITH_PNG
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#include "../stdafx.h"
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#include "../fileio_func.h"
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#include "../debug.h"
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#include "png.hpp"
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#include <png.h>
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#define PNG_SLOT 62
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static void PNGAPI png_my_read(png_structp png_ptr, png_bytep data, png_size_t length)
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{
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FioReadBlock(data, length);
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}
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static void PNGAPI png_my_error(png_structp png_ptr, png_const_charp message)
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{
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DEBUG(sprite, 0, "ERROR (libpng): %s - %s", message, (char *)png_get_error_ptr(png_ptr));
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longjmp(png_jmpbuf(png_ptr), 1);
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}
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static void PNGAPI png_my_warning(png_structp png_ptr, png_const_charp message)
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{
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DEBUG(sprite, 0, "WARNING (libpng): %s - %s", message, (char *)png_get_error_ptr(png_ptr));
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}
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static bool OpenPNGFile(const char *filename, uint32 id, bool mask)
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{
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char png_file[MAX_PATH];
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/* Add path separator after 'sprites' if not present */
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const char *sep = (filename[0] == PATHSEPCHAR) ? "" : PATHSEP;
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snprintf(png_file, sizeof(png_file), "sprites%s%s" PATHSEP "%d%s.png", sep, filename, id, mask ? "m" : "");
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if (FioCheckFileExists(png_file, NEWGRF_DIR)) {
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FioOpenFile(PNG_SLOT, png_file, NEWGRF_DIR);
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return true;
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}
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/* TODO -- Add TAR support */
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return false;
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}
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static bool LoadPNG(SpriteLoader::Sprite *sprite, const char *filename, uint32 id, volatile bool mask, ZoomLevel zoom)
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{
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png_byte header[8];
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png_structp png_ptr;
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png_infop info_ptr, end_info;
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uint bit_depth, colour_type;
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uint i, pixelsize;
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SpriteLoader::CommonPixel *dst;
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if (!OpenPNGFile(filename, id, mask)) return mask; // If mask is true, and file not found, continue true anyway, as it isn't a show-stopper
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/* Check the header */
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FioReadBlock(header, 8);
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if (png_sig_cmp(header, 0, 8) != 0) return false;
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/* Create the reader */
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png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, (png_voidp)NULL, png_my_error, png_my_warning);
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if (png_ptr == NULL) return false;
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/* Create initial stuff */
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info_ptr = png_create_info_struct(png_ptr);
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if (info_ptr == NULL) {
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png_destroy_read_struct(&png_ptr, (png_infopp)NULL, (png_infopp)NULL);
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return false;
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}
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end_info = png_create_info_struct(png_ptr);
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if (end_info == NULL) {
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png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
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return false;
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}
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/* Make sure that upon error, we can clean up graceful */
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if (setjmp(png_jmpbuf(png_ptr))) {
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png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
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return false;
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}
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/* Read the file */
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png_set_read_fn(png_ptr, NULL, png_my_read);
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png_set_sig_bytes(png_ptr, 8);
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png_read_info(png_ptr, info_ptr);
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if (!mask) {
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/* Read the text chunks */
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png_textp text_ptr;
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int num_text = 0;
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png_get_text(png_ptr, info_ptr, &text_ptr, &num_text);
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if (num_text == 0) DEBUG(misc, 0, "Warning: PNG Sprite '%s/%d.png' doesn't have x_offs and y_offs; expect graphical problems", filename, id);
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for (int i = 0; i < num_text; i++) {
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/* x_offs and y_offs are in the text-chunk of PNG */
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if (strcmp("x_offs", text_ptr[i].key) == 0) sprite->x_offs = strtol(text_ptr[i].text, NULL, 0);
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if (strcmp("y_offs", text_ptr[i].key) == 0) sprite->y_offs = strtol(text_ptr[i].text, NULL, 0);
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}
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uint height = png_get_image_height(png_ptr, info_ptr);
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uint width = png_get_image_width(png_ptr, info_ptr);
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/* Check if sprite dimensions aren't larger than what is allowed in GRF-files. */
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if (height > UINT8_MAX || width > UINT16_MAX) {
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png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
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return false;
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}
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sprite->height = height;
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sprite->width = width;
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sprite->AllocateData(zoom, sprite->width * sprite->height);
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} else if (sprite->height != png_get_image_height(png_ptr, info_ptr) || sprite->width != png_get_image_width(png_ptr, info_ptr)) {
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/* Make sure the mask image isn't larger than the sprite image. */
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DEBUG(misc, 0, "Ignoring mask for SpriteID %d as it isn't the same dimension as the masked sprite", id);
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png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
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return true;
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}
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bit_depth = png_get_bit_depth(png_ptr, info_ptr);
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colour_type = png_get_color_type(png_ptr, info_ptr);
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if (mask && (bit_depth != 8 || colour_type != PNG_COLOR_TYPE_PALETTE)) {
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DEBUG(misc, 0, "Ignoring mask for SpriteID %d as it isn't a 8 bit palette image", id);
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png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
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return true;
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}
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bool win_palette = false;
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if (!mask) {
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if (bit_depth == 16) png_set_strip_16(png_ptr);
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if (colour_type == PNG_COLOR_TYPE_PALETTE) {
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png_set_palette_to_rgb(png_ptr);
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colour_type = PNG_COLOR_TYPE_RGB;
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}
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if (colour_type == PNG_COLOR_TYPE_GRAY || colour_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
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png_set_gray_to_rgb(png_ptr);
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colour_type = PNG_COLOR_TYPE_RGB;
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}
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if (colour_type == PNG_COLOR_TYPE_RGB) {
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if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
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/* Create an alpha channel when there is a tRNS chunk */
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png_set_tRNS_to_alpha(png_ptr);
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} else {
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png_set_filler(png_ptr, 0xff, PNG_FILLER_AFTER);
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}
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}
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pixelsize = sizeof(uint32);
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} else {
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pixelsize = sizeof(uint8);
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/* Check whether the DOS greyscale is in place. If not, we assume WIN palette */
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png_colorp palette;
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int num_palette;
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if (png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette) && num_palette == 256) {
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for (uint i = 3; i <= 5; i++) {
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/* Allow differences between -4 and +4 */
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uint8 intensity = i * 16 - 4;
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uint8 diff_r = palette[i].red - intensity;
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uint8 diff_g = palette[i].green - intensity;
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uint8 diff_b = palette[i].blue - intensity;
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if (diff_r > 8 || diff_g > 8 || diff_b > 8) {
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win_palette = true;
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break;
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}
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}
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}
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}
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png_bytep row_pointer = AllocaM(png_byte, png_get_image_width(png_ptr, info_ptr) * pixelsize);
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for (i = 0; i < png_get_image_height(png_ptr, info_ptr); i++) {
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png_read_row(png_ptr, row_pointer, NULL);
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dst = sprite->data + i * png_get_image_width(png_ptr, info_ptr);
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for (uint x = 0; x < png_get_image_width(png_ptr, info_ptr); x++) {
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if (mask) {
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if (row_pointer[x * sizeof(uint8)] != 0) {
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/* Alpha channel is used from the original image (to allow transparency in remap colours) */
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extern const byte _palmap_w2d[];
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byte colour = row_pointer[x * sizeof(uint8)];
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dst[x].m = win_palette ? _palmap_w2d[colour] : colour;
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}
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} else {
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dst[x].r = row_pointer[x * sizeof(uint32) + 0];
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dst[x].g = row_pointer[x * sizeof(uint32) + 1];
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dst[x].b = row_pointer[x * sizeof(uint32) + 2];
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dst[x].a = row_pointer[x * sizeof(uint32) + 3];
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dst[x].m = 0;
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}
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}
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}
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png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
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return true;
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}
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uint8 SpriteLoaderPNG::LoadSprite(SpriteLoader::Sprite *sprite, uint8 file_slot, size_t file_pos, SpriteType sprite_type, bool load_32bpp)
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{
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if (!load_32bpp) return 0;
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ZoomLevel zoom_lvl = (sprite_type == ST_NORMAL) ? ZOOM_LVL_OUT_4X : ZOOM_LVL_NORMAL;
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const char *filename = FioGetFilename(file_slot);
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if (!LoadPNG(&sprite[zoom_lvl], filename, (uint32)file_pos, false, zoom_lvl)) return 0;
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if (!LoadPNG(&sprite[zoom_lvl], filename, (uint32)file_pos, true, zoom_lvl)) return 0;
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return 1 << zoom_lvl;
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}
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#endif /* WITH_PNG */
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@ -1,23 +0,0 @@
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/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file png.hpp Base for reading files from PNG. */
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#ifndef SPRITELOADER_PNG_HPP
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#define SPRITELOADER_PNG_HPP
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#include "spriteloader.hpp"
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/** Sprite loader for graphics coming from a PNG image. */
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class SpriteLoaderPNG : public SpriteLoader {
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public:
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uint8 LoadSprite(SpriteLoader::Sprite *sprite, uint8 file_slot, size_t file_pos, SpriteType sprite_type, bool load_32bpp);
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};
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#endif /* SPRITELOADER_PNG_HPP */
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