66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
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/*
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** gl-meta.h
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**
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** This file is part of mkxp.
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**
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** Copyright (C) 2014 Jonas Kulla <Nyocurio@gmail.com>
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**
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** mkxp is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 2 of the License, or
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** (at your option) any later version.
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**
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** mkxp 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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**
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** You should have received a copy of the GNU General Public License
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** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GLMETA_H
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#define GLMETA_H
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#include "gl-fun.h"
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#include "gl-util.h"
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#include <SDL_surface.h>
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namespace GLMeta
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{
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inline void subRectImageUpload(GLint srcW, GLint srcX, GLint srcY,
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GLint dstX, GLint dstY, GLsizei dstW, GLsizei dstH,
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SDL_Surface *src, GLenum format)
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{
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if (gl.unpack_subimage)
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{
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PixelStore::setupSubImage(srcW, srcX, srcY);
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TEX::uploadSubImage(dstX, dstY, dstW, dstH, src->pixels, format);
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}
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else
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{
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SDL_PixelFormat *form = src->format;
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SDL_Surface *tmp = SDL_CreateRGBSurface(0, dstW, dstH, form->BitsPerPixel,
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form->Rmask, form->Gmask, form->Bmask, form->Amask);
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SDL_Rect srcRect = { srcX, srcY, dstW, dstH };
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SDL_BlitSurface(src, &srcRect, tmp, 0);
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TEX::uploadSubImage(dstX, dstY, dstW, dstH, tmp->pixels, format);
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SDL_FreeSurface(tmp);
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}
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}
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inline void subRectImageFinish()
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{
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if (gl.unpack_subimage)
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PixelStore::reset();
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}
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}
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#endif // GLMETA_H
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