-/*\r
-Copyright (C) 1999-2007 id Software, Inc. and contributors.\r
-For a list of contributors, see the accompanying CONTRIBUTORS file.\r
-\r
-This file is part of GtkRadiant.\r
-\r
-GtkRadiant is free software; you can redistribute it and/or modify\r
-it under the terms of the GNU General Public License as published by\r
-the Free Software Foundation; either version 2 of the License, or\r
-(at your option) any later version.\r
-\r
-GtkRadiant is distributed in the hope that it will be useful,\r
-but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
-GNU General Public License for more details.\r
-\r
-You should have received a copy of the GNU General Public License\r
-along with GtkRadiant; if not, write to the Free Software\r
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\r
-*/\r
-\r
-// =============================================================================\r
-// global tables\r
-\r
-#include "plugin.h"\r
-\r
-_QERFuncTable_1 g_FuncTable;\r
-_QERFileSystemTable g_FileSystemTable;\r
-\r
-// =============================================================================\r
-// SYNAPSE\r
-\r
-#include "synapse.h"\r
-\r
-class CSynapseClientImage : public CSynapseClient\r
-{\r
-public:\r
- // CSynapseClient API\r
- bool RequestAPI(APIDescriptor_t *pAPI);\r
- const char* GetInfo();\r
- \r
- CSynapseClientImage() { }\r
- virtual ~CSynapseClientImage() { }\r
-};\r
-\r
-CSynapseServer* g_pSynapseServer = NULL;\r
-CSynapseClientImage g_SynapseClient;\r
-\r
-extern "C" CSynapseClient* SYNAPSE_DLL_EXPORT Synapse_EnumerateInterfaces (const char *version, CSynapseServer *pServer)\r
-{\r
- if (strcmp(version, SYNAPSE_VERSION))\r
- {\r
- Syn_Printf("ERROR: synapse API version mismatch: should be '" SYNAPSE_VERSION "', got '%s'\n", version);\r
- return NULL;\r
- }\r
- g_pSynapseServer = pServer;\r
- g_pSynapseServer->IncRef();\r
- Set_Syn_Printf(g_pSynapseServer->Get_Syn_Printf());\r
-\r
- g_SynapseClient.AddAPI(IMAGE_MAJOR, "png", sizeof(_QERPlugImageTable));\r
- g_SynapseClient.AddAPI(RADIANT_MAJOR, NULL, sizeof(_QERFuncTable_1), SYN_REQUIRE, &g_FuncTable);\r
- // NOTE: if imagepng starts being used for non "VFS" "pk3" config, need to add a dynamic config chunk\r
- // see:\r
- // http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=794\r
- // http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=800\r
- g_SynapseClient.AddAPI(VFS_MAJOR, "pk3", sizeof(_QERFileSystemTable), SYN_REQUIRE, &g_FileSystemTable);\r
-\r
- return &g_SynapseClient;\r
-}\r
-\r
-bool CSynapseClientImage::RequestAPI(APIDescriptor_t *pAPI)\r
-{\r
- if (!strcmp(pAPI->major_name, IMAGE_MAJOR))\r
- { \r
- _QERPlugImageTable* pTable= static_cast<_QERPlugImageTable*>(pAPI->mpTable);\r
- if (!strcmp(pAPI->minor_name, "png"))\r
- {\r
- pTable->m_pfnLoadImage = &LoadImage;\r
- return true;\r
- }\r
- }\r
-\r
- Syn_Printf("ERROR: RequestAPI( '%s' ) not found in '%s'\n", pAPI->major_name, GetInfo());\r
- return false;\r
-}\r
-\r
-#include "version.h"\r
-\r
-const char* CSynapseClientImage::GetInfo()\r
-{\r
- return "PNG loader module built " __DATE__ " " RADIANT_VERSION;\r
-}\r
-\r
-\r
-\r
-// ====== PNG loader functionality ======\r
-\r
-#include "png.h"\r
-\r
-#ifdef __APPLE__ //tigital\r
-#include <stdlib.h>\r
-#endif\r
-\r
-void user_warning_fn(png_structp png_ptr, png_const_charp warning_msg)\r
-{\r
- g_FuncTable.m_pfnSysPrintf ("libpng warning: %s\n", warning_msg);\r
-}\r
-\r
-void user_error_fn(png_structp png_ptr, png_const_charp error_msg)\r
-{\r
- g_FuncTable.m_pfnSysPrintf ("libpng error: %s\n", error_msg);\r
- longjmp(png_ptr->jmpbuf, 0);\r
-}\r
-\r
-void user_read_data(png_structp png_ptr, png_bytep data, png_uint_32 length)\r
-{\r
- png_bytep *p_p_fbuffer = (png_bytep*)png_get_io_ptr(png_ptr);\r
- memcpy(data, *p_p_fbuffer, length);\r
- *p_p_fbuffer += length;\r
-}\r
-\r
-void LoadImage (const char *filename, unsigned char **pic, int *width, int *height)\r
-{\r
- png_byte** row_pointers;\r
- unsigned char *fbuffer = NULL;\r
- png_bytep p_fbuffer;\r
-\r
- int nLen = g_FileSystemTable.m_pfnLoadFile( (char *)filename, (void **)&fbuffer, 0 );\r
- if (nLen == -1)\r
- return;\r
-\r
- p_fbuffer = fbuffer;\r
- \r
- // the reading glue\r
- // http://www.libpng.org/pub/png/libpng-manual.html\r
-\r
- png_structp png_ptr = png_create_read_struct\r
- (PNG_LIBPNG_VER_STRING, png_voidp_NULL,\r
- user_error_fn, user_warning_fn);\r
- if (!png_ptr)\r
- {\r
- g_FuncTable.m_pfnSysPrintf ("libpng error: png_create_read_struct\n");\r
- return;\r
- }\r
- \r
- png_infop info_ptr = png_create_info_struct(png_ptr);\r
- if (!info_ptr) {\r
- png_destroy_read_struct(&png_ptr,\r
- png_infopp_NULL, png_infopp_NULL);\r
- g_FuncTable.m_pfnSysPrintf ("libpng error: png_create_info_struct (info_ptr)\n");\r
- return;\r
- }\r
- \r
- png_infop end_info = png_create_info_struct(png_ptr);\r
- if (!end_info) {\r
- png_destroy_read_struct(&png_ptr, &info_ptr,\r
- png_infopp_NULL);\r
- g_FuncTable.m_pfnSysPrintf ("libpng error: png_create_info_struct (end_info)\n");\r
- return;\r
- }\r
-\r
- // configure the read function\r
- png_set_read_fn(png_ptr, (voidp)&p_fbuffer, (png_rw_ptr)&user_read_data);\r
-\r
- if (setjmp(png_ptr->jmpbuf)) {\r
- png_destroy_read_struct(&png_ptr, &info_ptr,\r
- &end_info);\r
- if (*pic)\r
- {\r
- g_free(*pic);\r
- free(row_pointers);\r
- }\r
- return;\r
- }\r
-\r
- png_read_info(png_ptr, info_ptr);\r
-\r
- int bit_depth = png_get_bit_depth(png_ptr, info_ptr);\r
- int color_type = png_get_color_type(png_ptr, info_ptr);\r
-\r
- // we want to treat all images the same way\r
- // The following code transforms grayscale images of less than 8 to 8 bits, \r
- // changes paletted images to RGB, and adds a full alpha channel if there is \r
- // transparency information in a tRNS chunk.\r
- if (color_type == PNG_COLOR_TYPE_PALETTE)\r
- png_set_palette_to_rgb(png_ptr);\r
-\r
- if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)\r
- png_set_gray_1_2_4_to_8(png_ptr);\r
-\r
- if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))\r
- png_set_tRNS_to_alpha(png_ptr);\r
-\r
- if ( ! ( color_type & PNG_COLOR_MASK_ALPHA ) ) {\r
- // Set the background color to draw transparent and alpha images over.\r
- png_color_16 my_background, *image_background;\r
-\r
- if (png_get_bKGD(png_ptr, info_ptr, &image_background))\r
- png_set_background(png_ptr, image_background, \r
- PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);\r
- else\r
- png_set_background(png_ptr, &my_background,\r
- PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);\r
-\r
- // Add alpha byte after each RGB triplet\r
- png_set_filler(png_ptr, 0xff, PNG_FILLER_AFTER);\r
- }\r
-\r
- // read the sucker in one chunk\r
- png_read_update_info(png_ptr, info_ptr);\r
-\r
- color_type = png_get_color_type(png_ptr, info_ptr);\r
- bit_depth = png_get_bit_depth(png_ptr, info_ptr);\r
-\r
- *width = png_get_image_width(png_ptr, info_ptr);\r
- *height = png_get_image_height(png_ptr, info_ptr);\r
-\r
- // allocate the pixel buffer, and the row pointers\r
- int size = (*width)*(*height)*4;\r
- // still have to use that g_malloc heresy\r
- // http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=491\r
- *pic = (unsigned char *)g_malloc(size);\r
- row_pointers = (png_byte**) malloc((*height) * sizeof(png_byte*));\r
-\r
- int i;\r
- for(i = 0; i < (*height); i++)\r
- row_pointers[i] = (png_byte*)(*pic) + i * 4 * (*width);\r
-\r
- // actual read\r
- png_read_image(png_ptr, row_pointers);\r
-\r
- /* read rest of file, and get additional chunks in info_ptr - REQUIRED */\r
- png_read_end(png_ptr, info_ptr);\r
-\r
- /* free up the memory structure */\r
- png_destroy_read_struct(&png_ptr, &info_ptr, png_infopp_NULL);\r
-\r
- free(row_pointers);\r
- g_FileSystemTable.m_pfnFreeFile (fbuffer);\r
-}\r
-\r
-\r
+/*
+Copyright (C) 1999-2007 id Software, Inc. and contributors.
+For a list of contributors, see the accompanying CONTRIBUTORS file.
+
+This file is part of GtkRadiant.
+
+GtkRadiant 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; either version 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant 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. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+// =============================================================================
+// global tables
+
+#include "plugin.h"
+
+_QERFuncTable_1 g_FuncTable;
+_QERFileSystemTable g_FileSystemTable;
+
+// =============================================================================
+// SYNAPSE
+
+#include "synapse.h"
+
+class CSynapseClientImage : public CSynapseClient
+{
+public:
+ // CSynapseClient API
+ bool RequestAPI(APIDescriptor_t *pAPI);
+ const char* GetInfo();
+
+ CSynapseClientImage() { }
+ virtual ~CSynapseClientImage() { }
+};
+
+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;
+}
+
+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;
+}
+
+#include "version.h"
+
+const char* CSynapseClientImage::GetInfo()
+{
+ return "PNG loader module built " __DATE__ " " RADIANT_VERSION;
+}
+
+
+
+// ====== PNG loader functionality ======
+
+#include "png.h"
+
+#ifdef __APPLE__ //tigital
+#include <stdlib.h>
+#endif
+
+void user_warning_fn(png_structp png_ptr, png_const_charp warning_msg)
+{
+ g_FuncTable.m_pfnSysPrintf ("libpng warning: %s\n", warning_msg);
+}
+
+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);
+}
+
+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;
+}
+
+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_gray_1_2_4_to_8 was renamed to png_set_expand_gray_1_2_4_to_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);
+}
projects / xonotic / netradiant.git / blobdiff