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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/texformat_tmp.h')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/main/texformat_tmp.h | 1762 |
1 files changed, 0 insertions, 1762 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/texformat_tmp.h b/nx-X11/extras/Mesa/src/mesa/main/texformat_tmp.h deleted file mode 100644 index 22531d826..000000000 --- a/nx-X11/extras/Mesa/src/mesa/main/texformat_tmp.h +++ /dev/null @@ -1,1762 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3.2 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * 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 texformat_tmp.h - * Texel fetch functions template. - * - * This template file is used by texformat.c to generate texel fetch functions - * for 1-D, 2-D and 3-D texture images. - * - * It should be expanded by defining \p DIM as the number texture dimensions - * (1, 2 or 3). According to the value of \p DIM a series of macros is defined - * for the texel lookup in the gl_texture_image::Data. - * - * \sa texformat.c and FetchTexel. - * - * \author Gareth Hughes - * \author Brian Paul - */ - - -#if DIM == 1 - -#define CHAN_ADDR( t, i, j, k, sz ) \ - ((void) (j), (void) (k), \ - ((GLchan *)(t)->Data + (i) * (sz))) -#define UBYTE_ADDR( t, i, j, k, sz ) \ - ((void) (j), (void) (k), \ - ((GLubyte *)(t)->Data + (i) * (sz))) -#define USHORT_ADDR( t, i, j, k ) \ - ((void) (j), (void) (k), \ - ((GLushort *)(t)->Data + (i))) -#define UINT_ADDR( t, i, j, k ) \ - ((void) (j), (void) (k), \ - ((GLuint *)(t)->Data + (i))) -#define FLOAT_ADDR( t, i, j, k, sz ) \ - ((void) (j), (void) (k), \ - ((GLfloat *)(t)->Data + (i) * (sz))) -#define HALF_ADDR( t, i, j, k, sz ) \ - ((void) (j), (void) (k), \ - ((GLhalfARB *)(t)->Data + (i) * (sz))) - -#define FETCH(x) fetch_texel_1d_##x - -#elif DIM == 2 - -#define CHAN_ADDR( t, i, j, k, sz ) \ - ((void) (k), \ - ((GLchan *)(t)->Data + ((t)->RowStride * (j) + (i)) * (sz))) -#define UBYTE_ADDR( t, i, j, k, sz ) \ - ((void) (k), \ - ((GLubyte *)(t)->Data + ((t)->RowStride * (j) + (i)) * (sz))) -#define USHORT_ADDR( t, i, j, k ) \ - ((void) (k), \ - ((GLushort *)(t)->Data + ((t)->RowStride * (j) + (i)))) -#define UINT_ADDR( t, i, j, k ) \ - ((void) (k), \ - ((GLuint *)(t)->Data + ((t)->RowStride * (j) + (i)))) -#define FLOAT_ADDR( t, i, j, k, sz ) \ - ((void) (k), \ - ((GLfloat *)(t)->Data + ((t)->RowStride * (j) + (i)) * (sz))) -#define HALF_ADDR( t, i, j, k, sz ) \ - ((void) (k), \ - ((GLhalfARB *)(t)->Data + ((t)->RowStride * (j) + (i)) * (sz))) - -#define FETCH(x) fetch_texel_2d_##x - -#elif DIM == 3 - -#define CHAN_ADDR( t, i, j, k, sz ) \ - (GLchan *)(t)->Data + (((t)->Height * (k) + (j)) * \ - (t)->RowStride + (i)) * (sz) -#define UBYTE_ADDR( t, i, j, k, sz ) \ - ((GLubyte *)(t)->Data + (((t)->Height * (k) + (j)) * \ - (t)->RowStride + (i)) * (sz)) -#define USHORT_ADDR( t, i, j, k ) \ - ((GLushort *)(t)->Data + (((t)->Height * (k) + (j)) * \ - (t)->RowStride + (i))) -#define UINT_ADDR( t, i, j, k ) \ - ((GLuint *)(t)->Data + (((t)->Height * (k) + (j)) * \ - (t)->RowStride + (i))) -#define FLOAT_ADDR( t, i, j, k, sz ) \ - ((GLfloat *)(t)->Data + (((t)->Height * (k) + (j)) * \ - (t)->RowStride + (i)) * (sz)) -#define HALF_ADDR( t, i, j, k, sz ) \ - ((GLhalfARB *)(t)->Data + (((t)->Height * (k) + (j)) * \ - (t)->RowStride + (i)) * (sz)) - -#define FETCH(x) fetch_texel_3d_##x - -#else -#error illegal number of texture dimensions -#endif - - -/* MESA_FORMAT_RGBA **********************************************************/ - -/* Fetch texel from 1D, 2D or 3D RGBA texture, returning 4 GLchans */ -static void FETCH(rgba)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 4 ); - COPY_CHAN4( texel, src ); -} - -/* Fetch texel from 1D, 2D or 3D RGBA texture, returning 4 GLfloats */ -static void FETCH(f_rgba)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 4 ); - texel[RCOMP] = CHAN_TO_FLOAT(src[0]); - texel[GCOMP] = CHAN_TO_FLOAT(src[1]); - texel[BCOMP] = CHAN_TO_FLOAT(src[2]); - texel[ACOMP] = CHAN_TO_FLOAT(src[3]); -} - -#if DIM == 3 -/* Store a GLchan RGBA texel */ -static void store_texel_rgba(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLchan *rgba = (const GLchan *) texel; - GLchan *dst = CHAN_ADDR(texImage, i, j, k, 4); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; - dst[3] = rgba[ACOMP]; -} -#endif - -/* MESA_FORMAT_RGB ***********************************************************/ - -/* Fetch texel from 1D, 2D or 3D RGB texture, returning 4 GLchans */ -static void FETCH(rgb)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 3 ); - texel[RCOMP] = src[0]; - texel[GCOMP] = src[1]; - texel[BCOMP] = src[2]; - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D RGB texture, returning 4 GLfloats */ -static void FETCH(f_rgb)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 3 ); - texel[RCOMP] = CHAN_TO_FLOAT(src[0]); - texel[GCOMP] = CHAN_TO_FLOAT(src[1]); - texel[BCOMP] = CHAN_TO_FLOAT(src[2]); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLchan *rgba = (const GLchan *) texel; - GLchan *dst = CHAN_ADDR(texImage, i, j, k, 3); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; -} -#endif - -/* MESA_FORMAT_ALPHA *********************************************************/ - -/* Fetch texel from 1D, 2D or 3D ALPHA texture, returning 4 GLchans */ -static void FETCH(alpha)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0; - texel[ACOMP] = src[0]; -} - -/* Fetch texel from 1D, 2D or 3D ALPHA texture, returning 4 GLfloats */ -static void FETCH(f_alpha)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0.0; - texel[ACOMP] = CHAN_TO_FLOAT(src[0]); -} - -#if DIM == 3 -static void store_texel_alpha(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLchan *rgba = (const GLchan *) texel; - GLchan *dst = CHAN_ADDR(texImage, i, j, k, 1); - dst[0] = rgba[ACOMP]; -} -#endif - -/* MESA_FORMAT_LUMINANCE *****************************************************/ - -/* Fetch texel from 1D, 2D or 3D LUMIN texture, returning 4 GLchans */ -static void FETCH(luminance)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = src[0]; - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D LUMIN texture, returning 4 GLfloats */ -static void FETCH(f_luminance)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = CHAN_TO_FLOAT(src[0]); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_luminance(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLchan *rgba = (const GLchan *) texel; - GLchan *dst = CHAN_ADDR(texImage, i, j, k, 1); - dst[0] = rgba[RCOMP]; -} -#endif - -/* MESA_FORMAT_LUMINANCE_ALPHA ***********************************************/ - -/* Fetch texel from 1D, 2D or 3D L_A texture, returning 4 GLchans */ -static void FETCH(luminance_alpha)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 2 ); - texel[RCOMP] = src[0]; - texel[GCOMP] = src[0]; - texel[BCOMP] = src[0]; - texel[ACOMP] = src[1]; -} - -/* Fetch texel from 1D, 2D or 3D L_A texture, returning 4 GLfloats */ -static void FETCH(f_luminance_alpha)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 2 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = CHAN_TO_FLOAT(src[0]); - texel[ACOMP] = CHAN_TO_FLOAT(src[1]); -} - -#if DIM == 3 -static void store_texel_luminance_alpha(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLchan *rgba = (const GLchan *) texel; - GLchan *dst = CHAN_ADDR(texImage, i, j, k, 2); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[ACOMP]; -} -#endif - -/* MESA_FORMAT_INTENSITY *****************************************************/ - -/* Fetch texel from 1D, 2D or 3D INT. texture, returning 4 GLchans */ -static void FETCH(intensity)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = src[0]; - texel[GCOMP] = src[0]; - texel[BCOMP] = src[0]; - texel[ACOMP] = src[0]; -} - -/* Fetch texel from 1D, 2D or 3D INT. texture, returning 4 GLfloats */ -static void FETCH(f_intensity)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLchan *src = CHAN_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = CHAN_TO_FLOAT(src[0]); -} - -#if DIM == 3 -static void store_texel_intensity(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLchan *rgba = (const GLchan *) texel; - GLchan *dst = CHAN_ADDR(texImage, i, j, k, 1); - dst[0] = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_DEPTH_COMPONENT_F32 *******************************************/ - -/* Fetch depth texel from 1D, 2D or 3D float32 DEPTH texture, - * returning 1 GLfloat. - * Note: no GLchan version of this function. - */ -static void FETCH(f_depth_component_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 1 ); - texel[0] = src[0]; -} - -#if DIM == 3 -static void store_texel_depth_component_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *depth = (const GLfloat *) texel; - GLfloat *dst = FLOAT_ADDR(texImage, i, j, k, 1); - dst[0] = *depth; -} -#endif - - -/* MESA_FORMAT_DEPTH_COMPONENT16 *********************************************/ - -/* Fetch depth texel from 1D, 2D or 3D float32 DEPTH texture, - * returning 1 GLfloat. - * Note: no GLchan version of this function. - */ -static void FETCH(f_depth_component16)(const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = USHORT_ADDR( texImage, i, j, k ); - texel[0] = src[0] * (1.0F / 65535.0F); -} - -#if DIM == 3 -static void store_texel_depth_component16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLushort *depth = (const GLushort *) texel; - GLushort *dst = USHORT_ADDR(texImage, i, j, k); - dst[0] = *depth; -} -#endif - - -/* MESA_FORMAT_RGBA_F32 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT32 texture, returning 4 GLchans. - */ -static void FETCH(rgba_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 4 ); - UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], src[0]); - UNCLAMPED_FLOAT_TO_CHAN(texel[GCOMP], src[1]); - UNCLAMPED_FLOAT_TO_CHAN(texel[BCOMP], src[2]); - UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], src[3]); -} - -/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT32 texture, returning 4 GLfloats. - */ -static void FETCH(f_rgba_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 4 ); - texel[RCOMP] = src[0]; - texel[GCOMP] = src[1]; - texel[BCOMP] = src[2]; - texel[ACOMP] = src[3]; -} - -#if DIM == 3 -static void store_texel_rgba_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *depth = (const GLfloat *) texel; - GLfloat *dst = FLOAT_ADDR(texImage, i, j, k, 1); - dst[0] = depth[RCOMP]; - dst[1] = depth[GCOMP]; - dst[2] = depth[BCOMP]; - dst[3] = depth[ACOMP]; -} -#endif - - -/* MESA_FORMAT_RGBA_F16 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT16 texture, - * returning 4 GLchans. - */ -static void FETCH(rgba_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 4 ); - UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], _mesa_half_to_float(src[0])); - UNCLAMPED_FLOAT_TO_CHAN(texel[GCOMP], _mesa_half_to_float(src[1])); - UNCLAMPED_FLOAT_TO_CHAN(texel[BCOMP], _mesa_half_to_float(src[2])); - UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], _mesa_half_to_float(src[3])); -} - -/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_rgba_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 4 ); - texel[RCOMP] = _mesa_half_to_float(src[0]); - texel[GCOMP] = _mesa_half_to_float(src[1]); - texel[BCOMP] = _mesa_half_to_float(src[2]); - texel[ACOMP] = _mesa_half_to_float(src[3]); -} - -#if DIM == 3 -static void store_texel_rgba_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *depth = (const GLfloat *) texel; - GLhalfARB *dst = HALF_ADDR(texImage, i, j, k, 1); - dst[0] = _mesa_float_to_half(*depth); -} -#endif - -/* MESA_FORMAT_RGB_F32 *******************************************************/ - -/* Fetch texel from 1D, 2D or 3D RGB_FLOAT32 texture, - * returning 4 GLchans. - */ -static void FETCH(rgb_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 3 ); - UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], src[0]); - UNCLAMPED_FLOAT_TO_CHAN(texel[GCOMP], src[1]); - UNCLAMPED_FLOAT_TO_CHAN(texel[BCOMP], src[2]); - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D RGB_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_rgb_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 3 ); - texel[RCOMP] = src[0]; - texel[GCOMP] = src[1]; - texel[BCOMP] = src[2]; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *depth = (const GLfloat *) texel; - GLfloat *dst = FLOAT_ADDR(texImage, i, j, k, 1); - dst[0] = *depth; -} -#endif - - -/* MESA_FORAMT_RGB_F16 *******************************************************/ - -/* Fetch texel from 1D, 2D or 3D RGBA_FLOAT16 texture, - * returning 4 GLchans. - */ -static void FETCH(rgb_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 3 ); - UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], _mesa_half_to_float(src[0])); - UNCLAMPED_FLOAT_TO_CHAN(texel[GCOMP], _mesa_half_to_float(src[1])); - UNCLAMPED_FLOAT_TO_CHAN(texel[BCOMP], _mesa_half_to_float(src[2])); - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D RGB_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_rgb_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 3 ); - texel[RCOMP] = _mesa_half_to_float(src[0]); - texel[GCOMP] = _mesa_half_to_float(src[1]); - texel[BCOMP] = _mesa_half_to_float(src[2]); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *depth = (const GLfloat *) texel; - GLhalfARB *dst = HALF_ADDR(texImage, i, j, k, 1); - dst[0] = _mesa_float_to_half(*depth); -} -#endif - - -/* MESA_FORMAT_ALPHA_F32 *****************************************************/ - -/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT32 texture, - * returning 4 GLchans. - */ -static void FETCH(alpha_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0; - UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], src[0]); -} - -/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_alpha_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0.0F; - texel[ACOMP] = src[0]; -} - -#if DIM == 3 -static void store_texel_alpha_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLfloat *dst = FLOAT_ADDR(texImage, i, j, k, 1); - dst[0] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_ALPHA_F32 *****************************************************/ - -/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT16 texture, - * returning 4 GLchans. - */ -static void FETCH(alpha_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0; - UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], _mesa_half_to_float(src[0])); -} - -/* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_alpha_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0.0F; - texel[ACOMP] = _mesa_half_to_float(src[0]); -} - -#if DIM == 3 -static void store_texel_alpha_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLhalfARB *dst = HALF_ADDR(texImage, i, j, k, 1); - dst[0] = _mesa_float_to_half(rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_LUMINANCE_F32 *************************************************/ - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT32 texture, - * returning 4 GLchans. - */ -static void FETCH(luminance_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 1 ); - UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], src[0]); - texel[GCOMP] = - texel[BCOMP] = texel[RCOMP]; - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_luminance_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = src[0]; - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_luminance_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLfloat *dst = FLOAT_ADDR(texImage, i, j, k, 1); - dst[0] = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_LUMINANCE_F16 *************************************************/ - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT16 texture, - * returning 4 GLchans. - */ -static void FETCH(luminance_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 1 ); - UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], _mesa_half_to_float(src[0])); - texel[GCOMP] = - texel[BCOMP] = texel[RCOMP]; - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_luminance_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = _mesa_half_to_float(src[0]); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_luminance_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLhalfARB *dst = HALF_ADDR(texImage, i, j, k, 1); - dst[0] = _mesa_float_to_half(rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_LUMINANCE_ALPHA_F32 *******************************************/ - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT32 texture, - * returning 4 GLchans. - */ -static void FETCH(luminance_alpha_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 2 ); - UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], src[0]); - texel[GCOMP] = - texel[BCOMP] = texel[RCOMP]; - UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], src[1]); -} - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_luminance_alpha_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 2 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = src[0]; - texel[ACOMP] = src[1]; -} - -#if DIM == 3 -static void store_texel_luminance_alpha_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLfloat *dst = FLOAT_ADDR(texImage, i, j, k, 2); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_LUMINANCE_ALPHA_F16 *******************************************/ - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(luminance_alpha_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 2 ); - UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], _mesa_half_to_float(src[0])); - texel[GCOMP] = - texel[BCOMP] = texel[RCOMP]; - UNCLAMPED_FLOAT_TO_CHAN(texel[ACOMP], _mesa_half_to_float(src[1])); -} - -/* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_luminance_alpha_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 2 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = _mesa_half_to_float(src[0]); - texel[ACOMP] = _mesa_half_to_float(src[1]); -} - -#if DIM == 3 -static void store_texel_luminance_alpha_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLhalfARB *dst = HALF_ADDR(texImage, i, j, k, 2); - dst[0] = _mesa_float_to_half(rgba[RCOMP]); - dst[1] = _mesa_float_to_half(rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_INTENSITY_F32 *************************************************/ - -/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT32 texture, - * returning 4 GLchans. - */ -static void FETCH(intensity_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 1 ); - UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], src[0]); - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = texel[RCOMP]; -} - -/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT32 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_intensity_f32)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLfloat *src = FLOAT_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = src[0]; -} - -#if DIM == 3 -static void store_texel_intensity_f32(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLfloat *dst = FLOAT_ADDR(texImage, i, j, k, 1); - dst[0] = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_INTENSITY_F16 *************************************************/ - -/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT16 texture, - * returning 4 GLchans. - */ -static void FETCH(intensity_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 1 ); - UNCLAMPED_FLOAT_TO_CHAN(texel[RCOMP], _mesa_half_to_float(src[0])); - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = texel[RCOMP]; -} - -/* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT16 texture, - * returning 4 GLfloats. - */ -static void FETCH(f_intensity_f16)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLhalfARB *src = HALF_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = _mesa_half_to_float(src[0]); -} - -#if DIM == 3 -static void store_texel_intensity_f16(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLfloat *rgba = (const GLfloat *) texel; - GLhalfARB *dst = HALF_ADDR(texImage, i, j, k, 1); - dst[0] = _mesa_float_to_half(rgba[RCOMP]); -} -#endif - - - - -/* - * Begin Hardware formats - */ - -/* MESA_FORMAT_RGBA8888 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D rgba8888 texture, return 4 GLchans */ -static void FETCH(rgba8888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLuint s = *UINT_ADDR( texImage, i, j, k ); - texel[RCOMP] = UBYTE_TO_CHAN( (s >> 24) ); - texel[GCOMP] = UBYTE_TO_CHAN( (s >> 16) & 0xff ); - texel[BCOMP] = UBYTE_TO_CHAN( (s >> 8) & 0xff ); - texel[ACOMP] = UBYTE_TO_CHAN( (s ) & 0xff ); -} - -/* Fetch texel from 1D, 2D or 3D rgba8888 texture, return 4 GLfloats */ -static void FETCH(f_rgba8888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *UINT_ADDR( texImage, i, j, k ); - texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); - texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); - texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); - texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); -} - -#if DIM == 3 -static void store_texel_rgba8888(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = UINT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_RGBA888_REV ***************************************************/ - -/* Fetch texel from 1D, 2D or 3D abgr8888 texture, return 4 GLchans */ -static void FETCH(rgba8888_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLuint s = *UINT_ADDR( texImage, i, j, k ); - texel[RCOMP] = UBYTE_TO_CHAN( (s ) & 0xff ); - texel[GCOMP] = UBYTE_TO_CHAN( (s >> 8) & 0xff ); - texel[BCOMP] = UBYTE_TO_CHAN( (s >> 16) & 0xff ); - texel[ACOMP] = UBYTE_TO_CHAN( (s >> 24) ); -} - -/* Fetch texel from 1D, 2D or 3D abgr8888 texture, return 4 GLfloats */ -static void FETCH(f_rgba8888_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *UINT_ADDR( texImage, i, j, k ); - texel[RCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); - texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); - texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); - texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); -} - -#if DIM == 3 -static void store_texel_rgba8888_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = UINT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_8888_REV(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB8888 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb8888 texture, return 4 GLchans */ -static void FETCH(argb8888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLuint s = *UINT_ADDR( texImage, i, j, k ); - texel[RCOMP] = UBYTE_TO_CHAN( (s >> 16) & 0xff ); - texel[GCOMP] = UBYTE_TO_CHAN( (s >> 8) & 0xff ); - texel[BCOMP] = UBYTE_TO_CHAN( (s ) & 0xff ); - texel[ACOMP] = UBYTE_TO_CHAN( (s >> 24) ); -} - -/* Fetch texel from 1D, 2D or 3D argb8888 texture, return 4 GLfloats */ -static void FETCH(f_argb8888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *UINT_ADDR( texImage, i, j, k ); - texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); - texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); - texel[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); - texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); -} - -#if DIM == 3 -static void store_texel_argb8888(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = UINT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_8888(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB8888_REV **************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb8888_rev texture, return 4 GLchans */ -static void FETCH(argb8888_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLuint s = *UINT_ADDR( texImage, i, j, k ); - texel[RCOMP] = UBYTE_TO_CHAN( (s >> 8) & 0xff ); - texel[GCOMP] = UBYTE_TO_CHAN( (s >> 16) & 0xff ); - texel[BCOMP] = UBYTE_TO_CHAN( (s >> 24) ); - texel[ACOMP] = UBYTE_TO_CHAN( (s ) & 0xff ); -} - -/* Fetch texel from 1D, 2D or 3D argb8888_rev texture, return 4 GLfloats */ -static void FETCH(f_argb8888_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLuint s = *UINT_ADDR( texImage, i, j, k ); - texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); - texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); - texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); - texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); -} - -#if DIM == 3 -static void store_texel_argb8888_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLuint *dst = UINT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_8888(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_RGB888 ********************************************************/ - -/* Fetch texel from 1D, 2D or 3D rgb888 texture, return 4 GLchans */ -static void FETCH(rgb888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 3 ); - texel[RCOMP] = UBYTE_TO_CHAN( src[2] ); - texel[GCOMP] = UBYTE_TO_CHAN( src[1] ); - texel[BCOMP] = UBYTE_TO_CHAN( src[0] ); - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D rgb888 texture, return 4 GLfloats */ -static void FETCH(f_rgb888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 3 ); - texel[RCOMP] = UBYTE_TO_FLOAT( src[2] ); - texel[GCOMP] = UBYTE_TO_FLOAT( src[1] ); - texel[BCOMP] = UBYTE_TO_FLOAT( src[0] ); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb888(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = UBYTE_ADDR(texImage, i, j, k, 3); - dst[0] = rgba[RCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[BCOMP]; -} -#endif - - -/* MESA_FORMAT_BGR888 ********************************************************/ - -/* Fetch texel from 1D, 2D or 3D bgr888 texture, return 4 GLchans */ -static void FETCH(bgr888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 3 ); - texel[RCOMP] = UBYTE_TO_CHAN( src[0] ); - texel[GCOMP] = UBYTE_TO_CHAN( src[1] ); - texel[BCOMP] = UBYTE_TO_CHAN( src[2] ); - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D bgr888 texture, return 4 GLfloats */ -static void FETCH(f_bgr888)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 3 ); - texel[RCOMP] = UBYTE_TO_FLOAT( src[0] ); - texel[GCOMP] = UBYTE_TO_FLOAT( src[1] ); - texel[BCOMP] = UBYTE_TO_FLOAT( src[2] ); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_bgr888(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = UBYTE_ADDR(texImage, i, j, k, 3); - dst[0] = rgba[BCOMP]; - dst[1] = rgba[GCOMP]; - dst[2] = rgba[RCOMP]; -} -#endif - - -/* use color expansion like (g << 2) | (g >> 4) (does somewhat random rounding) - instead of slow (g << 2) * 255 / 252 (always rounds down) */ - -/* MESA_FORMAT_RGB565 ********************************************************/ - -/* Fetch texel from 1D, 2D or 3D rgb565 texture, return 4 GLchans */ -static void FETCH(rgb565)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLushort *src = USHORT_ADDR( texImage, i, j, k ); - const GLushort s = *src; - texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf8) | ((s >> 13) & 0x7) ); - texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 3) & 0xfc) | ((s >> 9) & 0x3) ); - texel[BCOMP] = UBYTE_TO_CHAN( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) ); - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D rgb565 texture, return 4 GLfloats */ -static void FETCH(f_rgb565)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = USHORT_ADDR( texImage, i, j, k ); - const GLushort s = *src; - texel[RCOMP] = ((s >> 8) & 0xf8) * (1.0F / 248.0F); - texel[GCOMP] = ((s >> 3) & 0xfc) * (1.0F / 252.0F); - texel[BCOMP] = ((s << 3) & 0xf8) * (1.0F / 248.0F); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb565(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = USHORT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_565(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_RGB565_REV ****************************************************/ - -/* Fetch texel from 1D, 2D or 3D rgb565_rev texture, return 4 GLchans */ -static void FETCH(rgb565_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLushort *src = USHORT_ADDR( texImage, i, j, k ); - const GLushort s = (*src >> 8) | (*src << 8); /* byte swap */ - texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf8) | ((s >> 13) & 0x7) ); - texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 3) & 0xfc) | ((s >> 9) & 0x3) ); - texel[BCOMP] = UBYTE_TO_CHAN( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) ); - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D rgb565_rev texture, return 4 GLfloats */ -static void FETCH(f_rgb565_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = USHORT_ADDR( texImage, i, j, k ); - const GLushort s = (*src >> 8) | (*src << 8); /* byte swap */ - texel[RCOMP] = ((s >> 8) & 0xf8) * (1.0F / 248.0F); - texel[GCOMP] = ((s >> 3) & 0xfc) * (1.0F / 252.0F); - texel[BCOMP] = ((s << 3) & 0xf8) * (1.0F / 248.0F); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb565_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = USHORT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_565(rgba[BCOMP], rgba[GCOMP], rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB4444 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb444 texture, return 4 GLchans */ -static void FETCH(argb4444)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLushort *src = USHORT_ADDR( texImage, i, j, k ); - const GLushort s = *src; - texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf) | ((s >> 4) & 0xf0) ); - texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 4) & 0xf) | ((s ) & 0xf0) ); - texel[BCOMP] = UBYTE_TO_CHAN( ((s ) & 0xf) | ((s << 4) & 0xf0) ); - texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 12) & 0xf) | ((s >> 8) & 0xf0) ); -} - -/* Fetch texel from 1D, 2D or 3D argb4444 texture, return 4 GLfloats */ -static void FETCH(f_argb4444)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = USHORT_ADDR( texImage, i, j, k ); - const GLushort s = *src; - texel[RCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F); - texel[GCOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); - texel[BCOMP] = ((s ) & 0xf) * (1.0F / 15.0F); - texel[ACOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F); -} - -#if DIM == 3 -static void store_texel_argb4444(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = USHORT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_4444(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB4444_REV **************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb4444_rev texture, return 4 GLchans */ -static void FETCH(argb4444_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLushort s = *USHORT_ADDR( texImage, i, j, k ); - texel[RCOMP] = UBYTE_TO_CHAN( ((s ) & 0xf) | ((s << 4) & 0xf0) ); - texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 12) & 0xf) | ((s >> 8) & 0xf0) ); - texel[BCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf) | ((s >> 4) & 0xf0) ); - texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 4) & 0xf) | ((s ) & 0xf0) ); -} - -/* Fetch texel from 1D, 2D or 3D argb4444_rev texture, return 4 GLfloats */ -static void FETCH(f_argb4444_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort s = *USHORT_ADDR( texImage, i, j, k ); - texel[RCOMP] = ((s ) & 0xf) * (1.0F / 15.0F); - texel[GCOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F); - texel[BCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F); - texel[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); -} - -#if DIM == 3 -static void store_texel_argb4444_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = USHORT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_4444(rgba[ACOMP], rgba[BCOMP], rgba[GCOMP], rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB1555 ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */ -static void FETCH(argb1555)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLushort *src = USHORT_ADDR( texImage, i, j, k ); - const GLushort s = *src; - texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 7) & 0xf8) | ((s >> 12) & 0x7) ); - texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 2) & 0xf8) | ((s >> 7) & 0x7) ); - texel[BCOMP] = UBYTE_TO_CHAN( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) ); - texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 15) & 0x01) * 255 ); -} - -/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLfloats */ -static void FETCH(f_argb1555)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = USHORT_ADDR( texImage, i, j, k ); - const GLushort s = *src; - texel[RCOMP] = ((s >> 10) & 0x1f) * (1.0F / 31.0F); - texel[GCOMP] = ((s >> 5) & 0x1f) * (1.0F / 31.0F); - texel[BCOMP] = ((s ) & 0x1f) * (1.0F / 31.0F); - texel[ACOMP] = ((s >> 15) & 0x01); -} - -#if DIM == 3 -static void store_texel_argb1555(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = USHORT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_1555(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_ARGB1555_REV **************************************************/ - -/* Fetch texel from 1D, 2D or 3D argb1555_rev texture, return 4 GLchans */ -static void FETCH(argb1555_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLushort *src = USHORT_ADDR( texImage, i, j, k ); - const GLushort s = (*src << 8) | (*src >> 8); /* byteswap */ - texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 7) & 0xf8) | ((s >> 12) & 0x7) ); - texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 2) & 0xf8) | ((s >> 7) & 0x7) ); - texel[BCOMP] = UBYTE_TO_CHAN( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) ); - texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 15) & 0x01) * 255 ); -} - -/* Fetch texel from 1D, 2D or 3D argb1555_rev texture, return 4 GLfloats */ -static void FETCH(f_argb1555_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src = USHORT_ADDR( texImage, i, j, k ); - const GLushort s = (*src << 8) | (*src >> 8); /* byteswap */ - texel[RCOMP] = ((s >> 10) & 0x1f) * (1.0F / 31.0F); - texel[GCOMP] = ((s >> 5) & 0x1f) * (1.0F / 31.0F); - texel[BCOMP] = ((s ) & 0x1f) * (1.0F / 31.0F); - texel[ACOMP] = ((s >> 15) & 0x01); -} - -#if DIM == 3 -static void store_texel_argb1555_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = USHORT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_1555_REV(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_AL88 **********************************************************/ - -/* Fetch texel from 1D, 2D or 3D al88 texture, return 4 GLchans */ -static void FETCH(al88)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLushort s = *USHORT_ADDR( texImage, i, j, k ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = UBYTE_TO_CHAN( s & 0xff ); - texel[ACOMP] = UBYTE_TO_CHAN( s >> 8 ); -} - -/* Fetch texel from 1D, 2D or 3D al88 texture, return 4 GLfloats */ -static void FETCH(f_al88)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort s = *USHORT_ADDR( texImage, i, j, k ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = UBYTE_TO_FLOAT( s & 0xff ); - texel[ACOMP] = UBYTE_TO_FLOAT( s >> 8 ); -} - -#if DIM == 3 -static void store_texel_al88(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = USHORT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_88(rgba[ACOMP], rgba[RCOMP]); -} -#endif - - -/* MESA_FORMAT_AL88_REV ******************************************************/ - -/* Fetch texel from 1D, 2D or 3D al88_rev texture, return 4 GLchans */ -static void FETCH(al88_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLushort s = *USHORT_ADDR( texImage, i, j, k ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = UBYTE_TO_CHAN( s >> 8 ); - texel[ACOMP] = UBYTE_TO_CHAN( s & 0xff ); -} - -/* Fetch texel from 1D, 2D or 3D al88_rev texture, return 4 GLfloats */ -static void FETCH(f_al88_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort s = *USHORT_ADDR( texImage, i, j, k ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = UBYTE_TO_FLOAT( s >> 8 ); - texel[ACOMP] = UBYTE_TO_FLOAT( s & 0xff ); -} - -#if DIM == 3 -static void store_texel_al88_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLushort *dst = USHORT_ADDR(texImage, i, j, k); - *dst = PACK_COLOR_88(rgba[RCOMP], rgba[ACOMP]); -} -#endif - - -/* MESA_FORMAT_RGB332 ********************************************************/ - -/* Fetch texel from 1D, 2D or 3D rgb332 texture, return 4 GLchans */ -static void FETCH(rgb332)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - static const GLubyte lut2to8[4] = {0, 85, 170, 255}; - static const GLubyte lut3to8[8] = {0, 36, 73, 109, 146, 182, 219, 255}; - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 1 ); - const GLubyte s = *src; - texel[RCOMP] = UBYTE_TO_CHAN( lut3to8[(s >> 5) & 0x7] ); - texel[GCOMP] = UBYTE_TO_CHAN( lut3to8[(s >> 2) & 0x7] ); - texel[BCOMP] = UBYTE_TO_CHAN( lut2to8[(s ) & 0x3] ); - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D rgb332 texture, return 4 GLfloats */ -static void FETCH(f_rgb332)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 1 ); - const GLubyte s = *src; - texel[RCOMP] = ((s ) & 0xe0) * (1.0F / 224.0F); - texel[GCOMP] = ((s << 3) & 0xe0) * (1.0F / 224.0F); - texel[BCOMP] = ((s << 6) & 0xc0) * (1.0F / 192.0F); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_rgb332(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = UBYTE_ADDR(texImage, i, j, k, 1); - *dst = PACK_COLOR_332(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]); -} -#endif - - -/* MESA_FORMAT_A8 ************************************************************/ - -/* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLchans */ -static void FETCH(a8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0; - texel[ACOMP] = UBYTE_TO_CHAN( src[0] ); -} - -/* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLfloats */ -static void FETCH(f_a8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0.0; - texel[ACOMP] = UBYTE_TO_FLOAT( src[0] ); -} - -#if DIM == 3 -static void store_texel_a8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = UBYTE_ADDR(texImage, i, j, k, 1); - *dst = rgba[ACOMP]; -} -#endif - - -/* MESA_FORMAT_L8 ************************************************************/ - -/* Fetch texel from 1D, 2D or 3D l8 texture, return 4 GLchans */ -static void FETCH(l8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = UBYTE_TO_CHAN( src[0] ); - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D l8 texture, return 4 GLfloats */ -static void FETCH(f_l8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = UBYTE_TO_FLOAT( src[0] ); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_l8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = UBYTE_ADDR(texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_I8 ************************************************************/ - -/* Fetch texel from 1D, 2D or 3D i8 texture, return 4 GLchans */ -static void FETCH(i8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = UBYTE_TO_CHAN( src[0] ); -} - -/* Fetch texel from 1D, 2D or 3D i8 texture, return 4 GLfloats */ -static void FETCH(f_i8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 1 ); - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = UBYTE_TO_FLOAT( src[0] ); -} - -#if DIM == 3 -static void store_texel_i8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *rgba = (const GLubyte *) texel; - GLubyte *dst = UBYTE_ADDR(texImage, i, j, k, 1); - *dst = rgba[RCOMP]; -} -#endif - - -/* MESA_FORMAT_CI8 ***********************************************************/ - -/* Fetch CI texel from 1D, 2D or 3D ci8 texture, lookup the index in a - * color table, and return 4 GLchans. - */ -static void FETCH(ci8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLubyte *src = UBYTE_ADDR( texImage, i, j, k, 1 ); - const struct gl_color_table *palette; - const GLchan *table; - GLuint index; - GET_CURRENT_CONTEXT(ctx); - - if (ctx->Texture.SharedPalette) { - palette = &ctx->Texture.Palette; - } - else { - palette = &texImage->TexObject->Palette; - } - if (palette->Size == 0) - return; /* undefined results */ - ASSERT(palette->Type != GL_FLOAT); - table = (const GLchan *) palette->Table; - - /* Mask the index against size of palette to avoid going out of bounds */ - index = (*src) & (palette->Size - 1); - - switch (palette->Format) { - case GL_ALPHA: - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = 0; - texel[ACOMP] = table[index]; - return; - case GL_LUMINANCE: - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = table[index]; - texel[ACOMP] = CHAN_MAX; - break; - case GL_INTENSITY: - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = - texel[ACOMP] = table[index]; - return; - case GL_LUMINANCE_ALPHA: - texel[RCOMP] = - texel[GCOMP] = - texel[BCOMP] = table[index * 2 + 0]; - texel[ACOMP] = table[index * 2 + 1]; - return; - case GL_RGB: - texel[RCOMP] = table[index * 3 + 0]; - texel[GCOMP] = table[index * 3 + 1]; - texel[BCOMP] = table[index * 3 + 2]; - texel[ACOMP] = CHAN_MAX; - return; - case GL_RGBA: - texel[RCOMP] = table[index * 4 + 0]; - texel[GCOMP] = table[index * 4 + 1]; - texel[BCOMP] = table[index * 4 + 2]; - texel[ACOMP] = table[index * 4 + 3]; - return; - default: - _mesa_problem(ctx, "Bad palette format in palette_sample"); - } -} - - -/* Fetch CI texel from 1D, 2D or 3D ci8 texture, lookup the index in a - * color table, and return 4 GLfloats. - */ -static void FETCH(f_ci8)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - GLchan rgba[4]; - /* Sample as GLchan */ - FETCH(ci8)(texImage, i, j, k, rgba); - /* and return as floats */ - texel[RCOMP] = CHAN_TO_FLOAT(rgba[RCOMP]); - texel[GCOMP] = CHAN_TO_FLOAT(rgba[GCOMP]); - texel[BCOMP] = CHAN_TO_FLOAT(rgba[BCOMP]); - texel[ACOMP] = CHAN_TO_FLOAT(rgba[ACOMP]); -} - -#if DIM == 3 -static void store_texel_ci8(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - const GLubyte *index = (const GLubyte *) texel; - GLubyte *dst = UBYTE_ADDR(texImage, i, j, k, 1); - *dst = *index; -} -#endif - - -/* MESA_FORMAT_YCBCR *********************************************************/ - -/* Fetch texel from 1D, 2D or 3D ycbcr texture, return 4 GLchans */ -/* We convert YCbCr to RGB here */ -/* XXX this may break if GLchan != GLubyte */ -static void FETCH(ycbcr)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLushort *src0 = USHORT_ADDR( texImage, (i & ~1), j, k ); /* even */ - const GLushort *src1 = src0 + 1; /* odd */ - const GLubyte y0 = (*src0 >> 8) & 0xff; /* luminance */ - const GLubyte cb = *src0 & 0xff; /* chroma U */ - const GLubyte y1 = (*src1 >> 8) & 0xff; /* luminance */ - const GLubyte cr = *src1 & 0xff; /* chroma V */ - GLint r, g, b; - if (i & 1) { - /* odd pixel: use y1,cr,cb */ - r = (GLint) (1.164 * (y1-16) + 1.596 * (cr-128)); - g = (GLint) (1.164 * (y1-16) - 0.813 * (cr-128) - 0.391 * (cb-128)); - b = (GLint) (1.164 * (y1-16) + 2.018 * (cb-128)); - } - else { - /* even pixel: use y0,cr,cb */ - r = (GLint) (1.164 * (y0-16) + 1.596 * (cr-128)); - g = (GLint) (1.164 * (y0-16) - 0.813 * (cr-128) - 0.391 * (cb-128)); - b = (GLint) (1.164 * (y0-16) + 2.018 * (cb-128)); - } - texel[RCOMP] = CLAMP(r, 0, CHAN_MAX); - texel[GCOMP] = CLAMP(g, 0, CHAN_MAX); - texel[BCOMP] = CLAMP(b, 0, CHAN_MAX); - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D ycbcr texture, return 4 GLfloats */ -/* We convert YCbCr to RGB here */ -static void FETCH(f_ycbcr)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src0 = USHORT_ADDR( texImage, (i & ~1), j, k ); /* even */ - const GLushort *src1 = src0 + 1; /* odd */ - const GLubyte y0 = (*src0 >> 8) & 0xff; /* luminance */ - const GLubyte cb = *src0 & 0xff; /* chroma U */ - const GLubyte y1 = (*src1 >> 8) & 0xff; /* luminance */ - const GLubyte cr = *src1 & 0xff; /* chroma V */ - GLfloat r, g, b; - if (i & 1) { - /* odd pixel: use y1,cr,cb */ - r = (1.164 * (y1-16) + 1.596 * (cr-128)); - g = (1.164 * (y1-16) - 0.813 * (cr-128) - 0.391 * (cb-128)); - b = (1.164 * (y1-16) + 2.018 * (cb-128)); - } - else { - /* even pixel: use y0,cr,cb */ - r = (1.164 * (y0-16) + 1.596 * (cr-128)); - g = (1.164 * (y0-16) - 0.813 * (cr-128) - 0.391 * (cb-128)); - b = (1.164 * (y0-16) + 2.018 * (cb-128)); - } - /* XXX remove / 255 here by tweaking arithmetic above */ - r /= 255.0; - g /= 255.0; - b /= 255.0; - /* XXX should we really clamp??? */ - texel[RCOMP] = CLAMP(r, 0.0, 1.0); - texel[GCOMP] = CLAMP(g, 0.0, 1.0); - texel[BCOMP] = CLAMP(b, 0.0, 1.0); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_ycbcr(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - /* XXX to do */ -} -#endif - - -/* MESA_FORMAT_YCBCR_REV *****************************************************/ - -/* Fetch texel from 1D, 2D or 3D ycbcr_rev texture, return 4 GLchans */ -/* We convert YCbCr to RGB here */ -/* XXX this may break if GLchan != GLubyte */ -static void FETCH(ycbcr_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLchan *texel ) -{ - const GLushort *src0 = USHORT_ADDR( texImage, (i & ~1), j, k ); /* even */ - const GLushort *src1 = src0 + 1; /* odd */ - const GLubyte y0 = *src0 & 0xff; /* luminance */ - const GLubyte cr = (*src0 >> 8) & 0xff; /* chroma V */ - const GLubyte y1 = *src1 & 0xff; /* luminance */ - const GLubyte cb = (*src1 >> 8) & 0xff; /* chroma U */ - GLint r, g, b; - if (i & 1) { - /* odd pixel: use y1,cr,cb */ - r = (GLint) (1.164 * (y1-16) + 1.596 * (cr-128)); - g = (GLint) (1.164 * (y1-16) - 0.813 * (cr-128) - 0.391 * (cb-128)); - b = (GLint) (1.164 * (y1-16) + 2.018 * (cb-128)); - } - else { - /* even pixel: use y0,cr,cb */ - r = (GLint) (1.164 * (y0-16) + 1.596 * (cr-128)); - g = (GLint) (1.164 * (y0-16) - 0.813 * (cr-128) - 0.391 * (cb-128)); - b = (GLint) (1.164 * (y0-16) + 2.018 * (cb-128)); - } - texel[RCOMP] = CLAMP(r, 0, CHAN_MAX); - texel[GCOMP] = CLAMP(g, 0, CHAN_MAX); - texel[BCOMP] = CLAMP(b, 0, CHAN_MAX); - texel[ACOMP] = CHAN_MAX; -} - -/* Fetch texel from 1D, 2D or 3D ycbcr_rev texture, return 4 GLfloats */ -/* We convert YCbCr to RGB here */ -static void FETCH(f_ycbcr_rev)( const struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, GLfloat *texel ) -{ - const GLushort *src0 = USHORT_ADDR( texImage, (i & ~1), j, k ); /* even */ - const GLushort *src1 = src0 + 1; /* odd */ - const GLubyte y0 = *src0 & 0xff; /* luminance */ - const GLubyte cr = (*src0 >> 8) & 0xff; /* chroma V */ - const GLubyte y1 = *src1 & 0xff; /* luminance */ - const GLubyte cb = (*src1 >> 8) & 0xff; /* chroma U */ - GLfloat r, g, b; - if (i & 1) { - /* odd pixel: use y1,cr,cb */ - r = (1.164 * (y1-16) + 1.596 * (cr-128)); - g = (1.164 * (y1-16) - 0.813 * (cr-128) - 0.391 * (cb-128)); - b = (1.164 * (y1-16) + 2.018 * (cb-128)); - } - else { - /* even pixel: use y0,cr,cb */ - r = (1.164 * (y0-16) + 1.596 * (cr-128)); - g = (1.164 * (y0-16) - 0.813 * (cr-128) - 0.391 * (cb-128)); - b = (1.164 * (y0-16) + 2.018 * (cb-128)); - } - /* XXX remove / 255 here by tweaking arithmetic above */ - r /= 255.0; - g /= 255.0; - b /= 255.0; - /* XXX should we really clamp??? */ - texel[RCOMP] = CLAMP(r, 0.0, 1.0); - texel[GCOMP] = CLAMP(g, 0.0, 1.0); - texel[BCOMP] = CLAMP(b, 0.0, 1.0); - texel[ACOMP] = 1.0F; -} - -#if DIM == 3 -static void store_texel_ycbcr_rev(struct gl_texture_image *texImage, - GLint i, GLint j, GLint k, const void *texel) -{ - /* XXX to do */ -} -#endif - - - -#undef CHAN_ADDR -#undef UBYTE_ADDR -#undef USHORT_ADDR -#undef UINT_ADDR -#undef FLOAT_ADDR -#undef HALF_ADDR -#undef FETCH -#undef DIM |