mirror of https://bitbucket.org/CPMADevs/cnq3
87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
/*
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===========================================================================
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Copyright (C) 2017-2022 Gian 'myT' Schellenbaum
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This file is part of Challenge Quake 3 (CNQ3).
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Challenge Quake 3 is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Challenge Quake 3 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
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===========================================================================
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*/
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// implements LoadSTB, which is the interface between CNQ3 and stb_image
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#include "tr_local.h"
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#if defined(_MSC_VER)
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# pragma warning(disable: 4505) // unreferenced local function
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# pragma warning(disable: 4459) // declaration of 'ri' hides global declaration
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#endif
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static void* q_malloc( size_t );
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static void q_free( void* );
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static void* q_realloc_sized( void*, size_t, size_t );
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#define STBI_MALLOC q_malloc
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#define STBI_REALLOC_SIZED q_realloc_sized
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#define STBI_FREE q_free
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#define STBI_MAX_DIMENSIONS MAX_TEXTURE_SIZE
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#define STBI_NO_STDIO
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#define STBI_FAILURE_USERMSG
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#define STBI_ONLY_PNG
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#define STB_IMAGE_IMPLEMENTATION
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#include "stb_image.h"
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static void* q_malloc( size_t bytes )
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{
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return ri.Malloc((int)bytes);
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}
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static void q_free( void* buffer )
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{
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if (buffer != NULL)
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ri.Free(buffer);
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}
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static void* q_realloc_sized( void* ptr, size_t oldSize, size_t newSize )
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{
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if (ptr == NULL)
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return q_malloc(newSize);
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if (newSize <= oldSize)
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return ptr;
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void* ptr2 = q_malloc(newSize);
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memcpy(ptr2, ptr, oldSize);
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q_free(ptr);
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return ptr2;
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}
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qbool LoadSTB( const char* fileName, byte* buffer, int len, byte** pic, int* w, int* h, textureFormat_t* format )
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{
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int comp;
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*pic = (byte*)stbi_load_from_memory(buffer, len, w, h, &comp, 4);
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if (*pic == NULL) {
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ri.Printf(PRINT_WARNING, "stb_image: couldn't load %s: %s\n", fileName, stbi_failure_reason());
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return qfalse;
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}
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*format = TF_RGBA8;
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return qtrue;
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}
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