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reactos/dll/opengl/mesa/swrast/s_texfetch.c

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/*
* Mesa 3-D graphics library
* Version: 7.7
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
* Copyright (c) 2009 VMware, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \file s_texfetch.c
*
* Texel fetch/store functions
*
* \author Gareth Hughes
*/
#include <precomp.h>
/* Texel fetch routines for all supported formats
*/
#define DIM 1
#include "s_texfetch_tmp.h"
#define DIM 2
#include "s_texfetch_tmp.h"
#define DIM 3
#include "s_texfetch_tmp.h"
/**
* Null texel fetch function.
*
* Have to have this so the FetchTexel function pointer is never NULL.
*/
static void fetch_null_texelf( const struct swrast_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel )
{
(void) texImage; (void) i; (void) j; (void) k;
texel[RCOMP] = 0.0;
texel[GCOMP] = 0.0;
texel[BCOMP] = 0.0;
texel[ACOMP] = 0.0;
_mesa_warning(NULL, "fetch_null_texelf() called!");
}
/**
* Table to map MESA_FORMAT_ to texel fetch/store funcs.
* XXX this is somewhat temporary.
*/
static struct {
gl_format Name;
FetchTexelFunc Fetch1D;
FetchTexelFunc Fetch2D;
FetchTexelFunc Fetch3D;
}
texfetch_funcs[MESA_FORMAT_COUNT] =
{
{
MESA_FORMAT_NONE,
fetch_null_texelf,
fetch_null_texelf,
fetch_null_texelf
},
{
MESA_FORMAT_RGBA8888,
fetch_texel_1d_f_rgba8888,
fetch_texel_2d_f_rgba8888,
fetch_texel_3d_f_rgba8888
},
{
MESA_FORMAT_RGBA8888_REV,
fetch_texel_1d_f_rgba8888_rev,
fetch_texel_2d_f_rgba8888_rev,
fetch_texel_3d_f_rgba8888_rev
},
{
MESA_FORMAT_ARGB8888,
fetch_texel_1d_f_argb8888,
fetch_texel_2d_f_argb8888,
fetch_texel_3d_f_argb8888
},
{
MESA_FORMAT_ARGB8888_REV,
fetch_texel_1d_f_argb8888_rev,
fetch_texel_2d_f_argb8888_rev,
fetch_texel_3d_f_argb8888_rev
},
{
MESA_FORMAT_RGBX8888,
fetch_texel_1d_f_rgbx8888,
fetch_texel_2d_f_rgbx8888,
fetch_texel_3d_f_rgbx8888
},
{
MESA_FORMAT_RGBX8888_REV,
fetch_texel_1d_f_rgbx8888_rev,
fetch_texel_2d_f_rgbx8888_rev,
fetch_texel_3d_f_rgbx8888_rev
},
{
MESA_FORMAT_XRGB8888,
fetch_texel_1d_f_xrgb8888,
fetch_texel_2d_f_xrgb8888,
fetch_texel_3d_f_xrgb8888
},
{
MESA_FORMAT_XRGB8888_REV,
fetch_texel_1d_f_xrgb8888_rev,
fetch_texel_2d_f_xrgb8888_rev,
fetch_texel_3d_f_xrgb8888_rev
},
{
MESA_FORMAT_RGB888,
fetch_texel_1d_f_rgb888,
fetch_texel_2d_f_rgb888,
fetch_texel_3d_f_rgb888
},
{
MESA_FORMAT_BGR888,
fetch_texel_1d_f_bgr888,
fetch_texel_2d_f_bgr888,
fetch_texel_3d_f_bgr888
},
{
MESA_FORMAT_RGB565,
fetch_texel_1d_f_rgb565,
fetch_texel_2d_f_rgb565,
fetch_texel_3d_f_rgb565
},
{
MESA_FORMAT_RGB565_REV,
fetch_texel_1d_f_rgb565_rev,
fetch_texel_2d_f_rgb565_rev,
fetch_texel_3d_f_rgb565_rev
},
{
MESA_FORMAT_ARGB4444,
fetch_texel_1d_f_argb4444,
fetch_texel_2d_f_argb4444,
fetch_texel_3d_f_argb4444
},
{
MESA_FORMAT_ARGB4444_REV,
fetch_texel_1d_f_argb4444_rev,
fetch_texel_2d_f_argb4444_rev,
fetch_texel_3d_f_argb4444_rev
},
{
MESA_FORMAT_RGBA5551,
fetch_texel_1d_f_rgba5551,
fetch_texel_2d_f_rgba5551,
fetch_texel_3d_f_rgba5551
},
{
MESA_FORMAT_ARGB1555,
fetch_texel_1d_f_argb1555,
fetch_texel_2d_f_argb1555,
fetch_texel_3d_f_argb1555
},
{
MESA_FORMAT_ARGB1555_REV,
fetch_texel_1d_f_argb1555_rev,
fetch_texel_2d_f_argb1555_rev,
fetch_texel_3d_f_argb1555_rev
},
{
MESA_FORMAT_AL44,
fetch_texel_1d_f_al44,
fetch_texel_2d_f_al44,
fetch_texel_3d_f_al44
},
{
MESA_FORMAT_AL88,
fetch_texel_1d_f_al88,
fetch_texel_2d_f_al88,
fetch_texel_3d_f_al88
},
{
MESA_FORMAT_AL88_REV,
fetch_texel_1d_f_al88_rev,
fetch_texel_2d_f_al88_rev,
fetch_texel_3d_f_al88_rev
},
{
MESA_FORMAT_AL1616,
fetch_texel_1d_f_al1616,
fetch_texel_2d_f_al1616,
fetch_texel_3d_f_al1616
},
{
MESA_FORMAT_AL1616_REV,
fetch_texel_1d_f_al1616_rev,
fetch_texel_2d_f_al1616_rev,
fetch_texel_3d_f_al1616_rev
},
{
MESA_FORMAT_RGB332,
fetch_texel_1d_f_rgb332,
fetch_texel_2d_f_rgb332,
fetch_texel_3d_f_rgb332
},
{
MESA_FORMAT_A8,
fetch_texel_1d_f_a8,
fetch_texel_2d_f_a8,
fetch_texel_3d_f_a8
},
{
MESA_FORMAT_A16,
fetch_texel_1d_f_a16,
fetch_texel_2d_f_a16,
fetch_texel_3d_f_a16
},
{
MESA_FORMAT_L8,
fetch_texel_1d_f_l8,
fetch_texel_2d_f_l8,
fetch_texel_3d_f_l8
},
{
MESA_FORMAT_L16,
fetch_texel_1d_f_l16,
fetch_texel_2d_f_l16,
fetch_texel_3d_f_l16
},
{
MESA_FORMAT_I8,
fetch_texel_1d_f_i8,
fetch_texel_2d_f_i8,
fetch_texel_3d_f_i8
},
{
MESA_FORMAT_I16,
fetch_texel_1d_f_i16,
fetch_texel_2d_f_i16,
fetch_texel_3d_f_i16
},
{
MESA_FORMAT_YCBCR,
fetch_texel_1d_f_ycbcr,
fetch_texel_2d_f_ycbcr,
fetch_texel_3d_f_ycbcr
},
{
MESA_FORMAT_YCBCR_REV,
fetch_texel_1d_f_ycbcr_rev,
fetch_texel_2d_f_ycbcr_rev,
fetch_texel_3d_f_ycbcr_rev
},
{
MESA_FORMAT_Z16,
fetch_texel_1d_f_z16,
fetch_texel_2d_f_z16,
fetch_texel_3d_f_z16
},
{
MESA_FORMAT_X8_Z24,
fetch_texel_1d_f_s8_z24,
fetch_texel_2d_f_s8_z24,
fetch_texel_3d_f_s8_z24
},
{
MESA_FORMAT_Z24_X8,
fetch_texel_1d_f_z24_s8,
fetch_texel_2d_f_z24_s8,
fetch_texel_3d_f_z24_s8
},
{
MESA_FORMAT_Z32,
fetch_texel_1d_f_z32,
fetch_texel_2d_f_z32,
fetch_texel_3d_f_z32
},
{
MESA_FORMAT_S8,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_ALPHA_UINT8,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_ALPHA_UINT16,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_ALPHA_UINT32,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_ALPHA_INT8,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_ALPHA_INT16,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_ALPHA_INT32,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_INTENSITY_UINT8,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_INTENSITY_UINT16,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_INTENSITY_UINT32,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_INTENSITY_INT8,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_INTENSITY_INT16,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_INTENSITY_INT32,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_UINT8,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_UINT16,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_UINT32,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_INT8,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_INT16,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_INT32,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_ALPHA_UINT8,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_ALPHA_UINT16,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_ALPHA_UINT32,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_ALPHA_INT8,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_ALPHA_INT16,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_LUMINANCE_ALPHA_INT32,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_RGB_INT8,
NULL,
NULL,
NULL
},
/* non-normalized, signed int */
{
MESA_FORMAT_RGBA_INT8,
fetch_texel_1d_rgba_int8,
fetch_texel_2d_rgba_int8,
fetch_texel_3d_rgba_int8
},
{
MESA_FORMAT_RGB_INT16,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_RGBA_INT16,
fetch_texel_1d_rgba_int16,
fetch_texel_2d_rgba_int16,
fetch_texel_3d_rgba_int16
},
{
MESA_FORMAT_RGB_INT32,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_RGBA_INT32,
fetch_texel_1d_rgba_int32,
fetch_texel_2d_rgba_int32,
fetch_texel_3d_rgba_int32
},
/* non-normalized, unsigned int */
{
MESA_FORMAT_RGB_UINT8,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_RGBA_UINT8,
fetch_texel_1d_rgba_uint8,
fetch_texel_2d_rgba_uint8,
fetch_texel_3d_rgba_uint8
},
{
MESA_FORMAT_RGB_UINT16,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_RGBA_UINT16,
fetch_texel_1d_rgba_uint16,
fetch_texel_2d_rgba_uint16,
fetch_texel_3d_rgba_uint16
},
{
MESA_FORMAT_RGB_UINT32,
NULL,
NULL,
NULL
},
{
MESA_FORMAT_RGBA_UINT32,
fetch_texel_1d_rgba_uint32,
fetch_texel_2d_rgba_uint32,
fetch_texel_3d_rgba_uint32
},
/* signed, normalized */
{
MESA_FORMAT_SIGNED_RGBA_16,
fetch_texel_1d_signed_rgba_16,
fetch_texel_2d_signed_rgba_16,
fetch_texel_3d_signed_rgba_16
},
{
MESA_FORMAT_RGBA_16,
fetch_texel_1d_rgba_16,
fetch_texel_2d_rgba_16,
fetch_texel_3d_rgba_16
}
};
FetchTexelFunc
_mesa_get_texel_fetch_func(gl_format format, GLuint dims)
{
#ifdef DEBUG
/* check that the table entries are sorted by format name */
gl_format fmt;
for (fmt = 0; fmt < MESA_FORMAT_COUNT; fmt++) {
assert(texfetch_funcs[fmt].Name == fmt);
}
#endif
STATIC_ASSERT(Elements(texfetch_funcs) == MESA_FORMAT_COUNT);
assert(format < MESA_FORMAT_COUNT);
switch (dims) {
case 1:
return texfetch_funcs[format].Fetch1D;
case 2:
return texfetch_funcs[format].Fetch2D;
case 3:
return texfetch_funcs[format].Fetch3D;
default:
assert(0 && "bad dims in _mesa_get_texel_fetch_func");
return NULL;
}
}
/**
* Initialize the texture image's FetchTexel methods.
*/
static void
set_fetch_functions(struct swrast_texture_image *texImage, GLuint dims)
{
gl_format format = texImage->Base.TexFormat;
ASSERT(dims == 1 || dims == 2 || dims == 3);
texImage->FetchTexel = _mesa_get_texel_fetch_func(format, dims);
ASSERT(texImage->FetchTexel);
}
void
_mesa_update_fetch_functions(struct gl_texture_object *texObj)
{
GLuint face, i;
GLuint dims;
dims = _mesa_get_texture_dimensions(texObj->Target);
for (face = 0; face < 6; face++) {
for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
if (texObj->Image[face][i]) {
set_fetch_functions(swrast_texture_image(texObj->Image[face][i]),
dims);
}
}
}
}
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