/*
- Copyright (C) 1999-2007 id Software, Inc. and contributors.
+ Copyright (C) 1999-2006 Id Software, Inc. and contributors.
For a list of contributors, see the accompanying CONTRIBUTORS file.
This file is part of GtkRadiant.
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-// =============================================================================
-// global tables
+#include "debugging/debugging.h"
-#include "plugin.h"
+#include "ifilesystem.h"
+#include "iimage.h"
-_QERFuncTable_1 g_FuncTable;
-_QERFileSystemTable g_FileSystemTable;
+#include "imagelib.h"
-// =============================================================================
-// SYNAPSE
+// ====== PNG loader functionality ======
-#include "synapse.h"
+#include "png.h"
+#include <stdlib.h>
-class CSynapseClientImage : public CSynapseClient
+void user_warning_fn(png_structp png_ptr, png_const_charp warning_msg)
{
-public:
-// CSynapseClient API
-bool RequestAPI( APIDescriptor_t *pAPI );
-const char* GetInfo();
-
-CSynapseClientImage() { }
-virtual ~CSynapseClientImage() { }
-};
+ globalErrorStream() << "libpng warning: " << warning_msg << "\n";
+}
-CSynapseServer* g_pSynapseServer = NULL;
-CSynapseClientImage g_SynapseClient;
-
-#if __GNUC__ >= 4
-#pragma GCC visibility push(default)
-#endif
-extern "C" CSynapseClient * SYNAPSE_DLL_EXPORT Synapse_EnumerateInterfaces( const char *version, CSynapseServer *pServer ) {
-#if __GNUC__ >= 4
-#pragma GCC visibility pop
-#endif
- if ( strcmp( version, SYNAPSE_VERSION ) ) {
- Syn_Printf( "ERROR: synapse API version mismatch: should be '" SYNAPSE_VERSION "', got '%s'\n", version );
- return NULL;
- }
- g_pSynapseServer = pServer;
- g_pSynapseServer->IncRef();
- Set_Syn_Printf( g_pSynapseServer->Get_Syn_Printf() );
-
- g_SynapseClient.AddAPI( IMAGE_MAJOR, "png", sizeof( _QERPlugImageTable ) );
- g_SynapseClient.AddAPI( RADIANT_MAJOR, NULL, sizeof( _QERFuncTable_1 ), SYN_REQUIRE, &g_FuncTable );
- // NOTE: if imagepng starts being used for non "VFS" "pk3" config, need to add a dynamic config chunk
- g_SynapseClient.AddAPI( VFS_MAJOR, "pk3", sizeof( _QERFileSystemTable ), SYN_REQUIRE, &g_FileSystemTable );
-
- return &g_SynapseClient;
+void user_error_fn(png_structp png_ptr, png_const_charp error_msg)
+{
+ globalErrorStream() << "libpng error: " << error_msg << "\n";
+ longjmp(png_jmpbuf(png_ptr), 0);
}
-bool CSynapseClientImage::RequestAPI( APIDescriptor_t *pAPI ){
- if ( !strcmp( pAPI->major_name, IMAGE_MAJOR ) ) {
- _QERPlugImageTable* pTable = static_cast<_QERPlugImageTable*>( pAPI->mpTable );
- if ( !strcmp( pAPI->minor_name, "png" ) ) {
- pTable->m_pfnLoadImage = &LoadImage;
- return true;
- }
- }
-
- Syn_Printf( "ERROR: RequestAPI( '%s' ) not found in '%s'\n", pAPI->major_name, GetInfo() );
- return false;
+void user_read_data(png_structp png_ptr, png_bytep data, png_uint_32 length)
+{
+ png_bytep *p_p_fbuffer = (png_bytep *) png_get_io_ptr(png_ptr);
+ memcpy(data, *p_p_fbuffer, length);
+ *p_p_fbuffer += length;
}
-#include "version.h"
+Image *LoadPNGBuff(unsigned char *fbuffer)
+{
+ png_byte **row_pointers;
+ png_bytep p_fbuffer;
+
+ p_fbuffer = fbuffer;
+
+ // the reading glue
+ // http://www.libpng.org/pub/png/libpng-manual.html
+
+ png_structp png_ptr = png_create_read_struct
+ (PNG_LIBPNG_VER_STRING, (png_voidp) NULL,
+ user_error_fn, user_warning_fn);
+ if (!png_ptr) {
+ globalErrorStream() << "libpng error: png_create_read_struct\n";
+ return 0;
+ }
+
+ png_infop info_ptr = png_create_info_struct(png_ptr);
+ if (!info_ptr) {
+ png_destroy_read_struct(&png_ptr,
+ (png_infopp) NULL, (png_infopp) NULL);
+ globalErrorStream() << "libpng error: png_create_info_struct (info_ptr)\n";
+ return 0;
+ }
+
+ png_infop end_info = png_create_info_struct(png_ptr);
+ if (!end_info) {
+ png_destroy_read_struct(&png_ptr, &info_ptr,
+ (png_infopp) NULL);
+ globalErrorStream() << "libpng error: png_create_info_struct (end_info)\n";
+ return 0;
+ }
+
+ // configure the read function
+ png_set_read_fn(png_ptr, (png_voidp) &p_fbuffer, (png_rw_ptr) &user_read_data);
+
+ if (setjmp(png_jmpbuf(png_ptr))) {
+ png_destroy_read_struct(&png_ptr, &info_ptr,
+ &end_info);
+ return 0;
+ }
+
+ png_read_info(png_ptr, info_ptr);
+
+ int bit_depth = png_get_bit_depth(png_ptr, info_ptr);
+ int color_type = png_get_color_type(png_ptr, info_ptr);
+
+ // we want to treat all images the same way
+ // The following code transforms grayscale images of less than 8 to 8 bits,
+ // changes paletted images to RGB, and adds a full alpha channel if there is
+ // transparency information in a tRNS chunk.
+
+ if (color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
+ png_set_gray_to_rgb(png_ptr);
+ } else if (color_type == PNG_COLOR_TYPE_PALETTE) {
+ png_set_palette_to_rgb(png_ptr);
+ }
+
+ if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) {
+ png_set_expand_gray_1_2_4_to_8(png_ptr);
+ }
+
+ if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
+ png_set_tRNS_to_alpha(png_ptr);
+ }
+
+ if (!(color_type & PNG_COLOR_MASK_ALPHA)) {
+ // Set the background color to draw transparent and alpha images over.
+ png_color_16 my_background, *image_background;
+
+ if (png_get_bKGD(png_ptr, info_ptr, &image_background)) {
+ png_set_background(png_ptr, image_background,
+ PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
+ } else {
+ png_set_background(png_ptr, &my_background,
+ PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
+ }
+
+ // Add alpha byte after each RGB triplet
+ png_set_filler(png_ptr, 0xff, PNG_FILLER_AFTER);
+ }
+
+ // read the sucker in one chunk
+ png_read_update_info(png_ptr, info_ptr);
+
+ color_type = png_get_color_type(png_ptr, info_ptr);
+ bit_depth = png_get_bit_depth(png_ptr, info_ptr);
+
+ int width = png_get_image_width(png_ptr, info_ptr);
+ int height = png_get_image_height(png_ptr, info_ptr);
+
+ // allocate the pixel buffer, and the row pointers
+ RGBAImage *image = new RGBAImage(width, height);
+
+ row_pointers = (png_byte **) malloc((height) * sizeof(png_byte *));
+
+ int i;
+ for (i = 0; i < (height); i++) {
+ row_pointers[i] = (png_byte *) (image->getRGBAPixels()) + i * 4 * (width);
+ }
+
+ // actual read
+ png_read_image(png_ptr, row_pointers);
-const char* CSynapseClientImage::GetInfo(){
- return "PNG loader module built " __DATE__ " " RADIANT_VERSION;
+ /* read rest of file, and get additional chunks in info_ptr - REQUIRED */
+ png_read_end(png_ptr, info_ptr);
+
+ /* free up the memory structure */
+ png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
+
+ free(row_pointers);
+
+ return image;
}
+Image *LoadPNG(ArchiveFile &file)
+{
+ ScopedArchiveBuffer buffer(file);
+ return LoadPNGBuff(buffer.buffer);
+}
-// ====== PNG loader functionality ======
+#include "modulesystem/singletonmodule.h"
-#include "png.h"
-#ifdef __APPLE__ //tigital
-#include <stdlib.h>
-#endif
+class ImageDependencies : public GlobalFileSystemModuleRef {
+};
-void user_warning_fn( png_structp png_ptr, png_const_charp warning_msg ){
- g_FuncTable.m_pfnSysPrintf( "libpng warning: %s\n", warning_msg );
-}
+class ImagePNGAPI {
+ _QERPlugImageTable m_imagepng;
+public:
+ typedef _QERPlugImageTable Type;
-void user_error_fn( png_structp png_ptr, png_const_charp error_msg ){
- g_FuncTable.m_pfnSysPrintf( "libpng error: %s\n", error_msg );
- longjmp( png_ptr->jmpbuf, 0 );
-}
+ STRING_CONSTANT(Name, "png");
-void user_read_data( png_structp png_ptr, png_bytep data, png_uint_32 length ){
- png_bytep *p_p_fbuffer = (png_bytep*)png_get_io_ptr( png_ptr );
- memcpy( data, *p_p_fbuffer, length );
- *p_p_fbuffer += length;
-}
+ ImagePNGAPI()
+ {
+ m_imagepng.loadImage = LoadPNG;
+ }
+
+ _QERPlugImageTable *getTable()
+ {
+ return &m_imagepng;
+ }
+};
+
+typedef SingletonModule<ImagePNGAPI, ImageDependencies> ImagePNGModule;
+
+ImagePNGModule g_ImagePNGModule;
+
+
+extern "C" void RADIANT_DLLEXPORT Radiant_RegisterModules(ModuleServer &server)
+{
+ initialiseModule(server);
-void LoadImage( const char *filename, unsigned char **pic, int *width, int *height ){
- png_byte** row_pointers;
- unsigned char *fbuffer = NULL;
- png_bytep p_fbuffer;
-
- int nLen = g_FileSystemTable.m_pfnLoadFile( (char *)filename, (void **)&fbuffer, 0 );
- if ( nLen == -1 ) {
- return;
- }
-
- p_fbuffer = fbuffer;
-
- // the reading glue
- // http://www.libpng.org/pub/png/libpng-manual.html
-
- png_structp png_ptr = png_create_read_struct
- ( PNG_LIBPNG_VER_STRING, NULL,
- user_error_fn, user_warning_fn );
- if ( !png_ptr ) {
- g_FuncTable.m_pfnSysPrintf( "libpng error: png_create_read_struct\n" );
- return;
- }
-
- png_infop info_ptr = png_create_info_struct( png_ptr );
- if ( !info_ptr ) {
- png_destroy_read_struct( &png_ptr,
- NULL, NULL );
- g_FuncTable.m_pfnSysPrintf( "libpng error: png_create_info_struct (info_ptr)\n" );
- return;
- }
-
- png_infop end_info = png_create_info_struct( png_ptr );
- if ( !end_info ) {
- png_destroy_read_struct( &png_ptr, &info_ptr,
- NULL );
- g_FuncTable.m_pfnSysPrintf( "libpng error: png_create_info_struct (end_info)\n" );
- return;
- }
-
- // configure the read function
- png_set_read_fn( png_ptr, ( voidp ) & p_fbuffer, ( png_rw_ptr ) & user_read_data );
-
- if ( setjmp( png_ptr->jmpbuf ) ) {
- png_destroy_read_struct( &png_ptr, &info_ptr,
- &end_info );
- if ( *pic ) {
- g_free( *pic );
- free( row_pointers );
- }
- return;
- }
-
- png_read_info( png_ptr, info_ptr );
-
- int bit_depth = png_get_bit_depth( png_ptr, info_ptr );
- int color_type = png_get_color_type( png_ptr, info_ptr );
-
- // we want to treat all images the same way
- // The following code transforms grayscale images of less than 8 to 8 bits,
- // changes paletted images to RGB, and adds a full alpha channel if there is
- // transparency information in a tRNS chunk.
- if ( color_type == PNG_COLOR_TYPE_PALETTE ) {
- png_set_palette_to_rgb( png_ptr );
- }
-
- if ( color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8 ) {
- png_set_expand_gray_1_2_4_to_8( png_ptr );
- }
-
- if ( png_get_valid( png_ptr, info_ptr, PNG_INFO_tRNS ) ) {
- png_set_tRNS_to_alpha( png_ptr );
- }
-
- if ( !( color_type & PNG_COLOR_MASK_ALPHA ) ) {
- // Set the background color to draw transparent and alpha images over.
- png_color_16 my_background, *image_background;
-
- if ( png_get_bKGD( png_ptr, info_ptr, &image_background ) ) {
- png_set_background( png_ptr, image_background,
- PNG_BACKGROUND_GAMMA_FILE, 1, 1.0 );
- }
- else{
- png_set_background( png_ptr, &my_background,
- PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0 );
- }
-
- // Add alpha byte after each RGB triplet
- png_set_filler( png_ptr, 0xff, PNG_FILLER_AFTER );
- }
-
- // read the sucker in one chunk
- png_read_update_info( png_ptr, info_ptr );
-
- color_type = png_get_color_type( png_ptr, info_ptr );
- bit_depth = png_get_bit_depth( png_ptr, info_ptr );
-
- *width = png_get_image_width( png_ptr, info_ptr );
- *height = png_get_image_height( png_ptr, info_ptr );
-
- // allocate the pixel buffer, and the row pointers
- int size = ( *width ) * ( *height ) * 4;
- // still have to use that g_malloc heresy
- *pic = (unsigned char *)g_malloc( size );
- row_pointers = (png_byte**) malloc( ( *height ) * sizeof( png_byte* ) );
-
- int i;
- for ( i = 0; i < ( *height ); i++ )
- row_pointers[i] = (png_byte*)( *pic ) + i * 4 * ( *width );
-
- // actual read
- png_read_image( png_ptr, row_pointers );
-
- /* read rest of file, and get additional chunks in info_ptr - REQUIRED */
- png_read_end( png_ptr, info_ptr );
-
- /* free up the memory structure */
- png_destroy_read_struct( &png_ptr, &info_ptr, NULL );
-
- free( row_pointers );
- g_FileSystemTable.m_pfnFreeFile( fbuffer );
+ g_ImagePNGModule.selfRegister();
}
projects / xonotic / netradiant.git / blobdiff