mirror of
https://git.code.sf.net/p/quake/quakeforge
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fcd094ef04
And further clean up skin api. It turns out that skin functions must all be in the render libs, and this results in Skin_Set (was Skin_SetSkin) needs to be accessed via a function pointer rather than directly :(
110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/*
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glsl_skin.c
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GLSL Skin support
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Copyright (C) 2012 Bill Currie <bill@taniwha.org>
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Author: Bill Currie <bill@taniwha.org>
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Date: 2012/1/23
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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.
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See the 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 this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include "string.h"
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#endif
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#ifdef HAVE_STRINGS_H
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# include "strings.h"
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#endif
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#include <stdlib.h>
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#include "QF/image.h"
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#include "QF/model.h"
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#include "QF/skin.h"
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#include "QF/sys.h"
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#include "QF/GLSL/defines.h"
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#include "QF/GLSL/funcs.h"
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#include "mod_internal.h"
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#include "r_internal.h"
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static GLuint colormaps[256];
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uint32_t
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glsl_Skin_Colormap (const colormap_t *colormap)
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{
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byte top = colormap->top & 0x0f;
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byte bot = colormap->bottom & 0x0f;
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int ind = top | (bot << 4);
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if (colormaps[ind]) {
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return colormaps[ind];
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}
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qfeglGenTextures (1, &colormaps[ind]);
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byte cmap[4 * VID_GRADES * 256];
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byte *dst = cmap;
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byte *src = cmap + 3 * VID_GRADES * 256;
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Skin_SetColormap (src, top, bot);
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for (int i = 0; i < VID_GRADES * 256; i++) {
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byte c = *src++;
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const byte *in = vid.palette + c * 3;
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*dst++ = *in++;
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*dst++ = *in++;
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*dst++ = *in++;
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*dst++ = 255;
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}
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qfeglBindTexture (GL_TEXTURE_2D, colormaps[ind]);
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qfeglTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, 256, VID_GRADES, 0,
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GL_RGBA, GL_UNSIGNED_BYTE, cmap);
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qfeglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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qfeglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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qfeglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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qfeglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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return colormaps[ind];
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}
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void
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glsl_Skin_SetupSkin (skin_t *skin)
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{
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tex_t *tex = skin->tex;
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skin->tex = nullptr; // tex memory is only temporarily allocated
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qfeglGenTextures (1, &skin->id);
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qfeglBindTexture (GL_TEXTURE_2D, skin->id);
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qfeglTexImage2D (GL_TEXTURE_2D, 0, GL_LUMINANCE, tex->width, tex->height,
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0, GL_LUMINANCE, GL_UNSIGNED_BYTE, tex->data);
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qfeglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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qfeglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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qfeglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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qfeglTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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}
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void
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glsl_Skin_Destroy (skin_t *skin)
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{
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qfeglDeleteTextures (1, &skin->id);
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}
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