WebSVN – Kolibri OS – Blame – /contrib/sdk/sources/Mesa/src/mesa/swrast/s_texfetch.c

Rev	Author	Line No.	Line
4358	Serge	1	/*
		2	* Mesa 3-D graphics library
		3	*
		4	* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
		5	* Copyright (c) 2009 VMware, Inc.
		6	*
		7	* Permission is hereby granted, free of charge, to any person obtaining a
		8	* copy of this software and associated documentation files (the "Software"),
		9	* to deal in the Software without restriction, including without limitation
		10	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
		11	* and/or sell copies of the Software, and to permit persons to whom the
		12	* Software is furnished to do so, subject to the following conditions:
		13	*
		14	* The above copyright notice and this permission notice shall be included
		15	* in all copies or substantial portions of the Software.
		16	*
		17	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
		18	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
		19	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
		20	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
		21	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
		22	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
		23	* OTHER DEALINGS IN THE SOFTWARE.
		24	*/
		25
		26
		27	/**
		28	* \file s_texfetch.c
		29	*
		30	* Texel fetch/store functions
		31	*
		32	* \author Gareth Hughes
		33	*/
		34
		35
		36	#include "main/colormac.h"
		37	#include "main/macros.h"
		38	#include "main/texcompress.h"
		39	#include "main/texcompress_fxt1.h"
		40	#include "main/texcompress_s3tc.h"
		41	#include "main/texcompress_rgtc.h"
		42	#include "main/texcompress_etc.h"
		43	#include "main/teximage.h"
		44	#include "main/samplerobj.h"
		45	#include "s_context.h"
		46	#include "s_texfetch.h"
		47	#include "../../gallium/auxiliary/util/u_format_rgb9e5.h"
		48	#include "../../gallium/auxiliary/util/u_format_r11g11b10f.h"
		49
		50
		51	/**
		52	* Convert an 8-bit sRGB value from non-linear space to a
		53	* linear RGB value in [0, 1].
		54	* Implemented with a 256-entry lookup table.
		55	*/
		56	static inline GLfloat
		57	nonlinear_to_linear(GLubyte cs8)
		58	{
		59	static GLfloat table[256];
		60	static GLboolean tableReady = GL_FALSE;
		61	if (!tableReady) {
		62	/* compute lookup table now */
		63	GLuint i;
		64	for (i = 0; i < 256; i++) {
		65	const GLfloat cs = UBYTE_TO_FLOAT(i);
		66	if (cs <= 0.04045) {
		67	table[i] = cs / 12.92f;
		68	}
		69	else {
		70	table[i] = (GLfloat) pow((cs + 0.055) / 1.055, 2.4);
		71	}
		72	}
		73	tableReady = GL_TRUE;
		74	}
		75	return table[cs8];
		76	}
		77
		78
		79
		80	/* Texel fetch routines for all supported formats
		81	*/
		82	#define DIM 1
		83	#include "s_texfetch_tmp.h"
		84
		85	#define DIM 2
		86	#include "s_texfetch_tmp.h"
		87
		88	#define DIM 3
		89	#include "s_texfetch_tmp.h"
		90
		91
		92	/**
		93	* All compressed texture texel fetching is done though this function.
		94	* Basically just call a core-Mesa texel fetch function.
		95	*/
		96	static void
		97	fetch_compressed(const struct swrast_texture_image *swImage,
		98	GLint i, GLint j, GLint k, GLfloat *texel)
		99	{
		100	/* The FetchCompressedTexel function takes an integer pixel rowstride,
		101	* while the image's rowstride is bytes per row of blocks.
		102	*/
		103	GLuint bw, bh;
		104	GLuint texelBytes = _mesa_get_format_bytes(swImage->Base.TexFormat);
		105	_mesa_get_format_block_size(swImage->Base.TexFormat, &bw, &bh);
		106	assert(swImage->RowStride * bw % texelBytes == 0);
		107
		108	swImage->FetchCompressedTexel(swImage->ImageSlices[k],
		109	swImage->RowStride * bw / texelBytes,
		110	i, j, texel);
		111	}
		112
		113
		114
		115	/**
		116	* Null texel fetch function.
		117	*
		118	* Have to have this so the FetchTexel function pointer is never NULL.
		119	*/
		120	static void fetch_null_texelf( const struct swrast_texture_image *texImage,
		121	GLint i, GLint j, GLint k, GLfloat *texel )
		122	{
		123	(void) texImage; (void) i; (void) j; (void) k;
		124	texel[RCOMP] = 0.0;
		125	texel[GCOMP] = 0.0;
		126	texel[BCOMP] = 0.0;
		127	texel[ACOMP] = 0.0;
		128	_mesa_warning(NULL, "fetch_null_texelf() called!");
		129	}
		130
		131
		132	/**
		133	* Table to map MESA_FORMAT_ to texel fetch/store funcs.
		134	* XXX this is somewhat temporary.
		135	*/
		136	static struct {
		137	gl_format Name;
		138	FetchTexelFunc Fetch1D;
		139	FetchTexelFunc Fetch2D;
		140	FetchTexelFunc Fetch3D;
		141	}
		142	texfetch_funcs[] =
		143	{
		144	{
		145	MESA_FORMAT_NONE,
		146	fetch_null_texelf,
		147	fetch_null_texelf,
		148	fetch_null_texelf
		149	},
		150
		151	{
		152	MESA_FORMAT_RGBA8888,
		153	fetch_texel_1d_f_rgba8888,
		154	fetch_texel_2d_f_rgba8888,
		155	fetch_texel_3d_f_rgba8888
		156	},
		157	{
		158	MESA_FORMAT_RGBA8888_REV,
		159	fetch_texel_1d_f_rgba8888_rev,
		160	fetch_texel_2d_f_rgba8888_rev,
		161	fetch_texel_3d_f_rgba8888_rev
		162	},
		163	{
		164	MESA_FORMAT_ARGB8888,
		165	fetch_texel_1d_f_argb8888,
		166	fetch_texel_2d_f_argb8888,
		167	fetch_texel_3d_f_argb8888
		168	},
		169	{
		170	MESA_FORMAT_ARGB8888_REV,
		171	fetch_texel_1d_f_argb8888_rev,
		172	fetch_texel_2d_f_argb8888_rev,
		173	fetch_texel_3d_f_argb8888_rev
		174	},
		175	{
		176	MESA_FORMAT_RGBX8888,
		177	fetch_texel_1d_f_rgbx8888,
		178	fetch_texel_2d_f_rgbx8888,
		179	fetch_texel_3d_f_rgbx8888
		180	},
		181	{
		182	MESA_FORMAT_RGBX8888_REV,
		183	fetch_texel_1d_f_rgbx8888_rev,
		184	fetch_texel_2d_f_rgbx8888_rev,
		185	fetch_texel_3d_f_rgbx8888_rev
		186	},
		187	{
		188	MESA_FORMAT_XRGB8888,
		189	fetch_texel_1d_f_xrgb8888,
		190	fetch_texel_2d_f_xrgb8888,
		191	fetch_texel_3d_f_xrgb8888
		192	},
		193	{
		194	MESA_FORMAT_XRGB8888_REV,
		195	fetch_texel_1d_f_xrgb8888_rev,
		196	fetch_texel_2d_f_xrgb8888_rev,
		197	fetch_texel_3d_f_xrgb8888_rev
		198	},
		199	{
		200	MESA_FORMAT_RGB888,
		201	fetch_texel_1d_f_rgb888,
		202	fetch_texel_2d_f_rgb888,
		203	fetch_texel_3d_f_rgb888
		204	},
		205	{
		206	MESA_FORMAT_BGR888,
		207	fetch_texel_1d_f_bgr888,
		208	fetch_texel_2d_f_bgr888,
		209	fetch_texel_3d_f_bgr888
		210	},
		211	{
		212	MESA_FORMAT_RGB565,
		213	fetch_texel_1d_f_rgb565,
		214	fetch_texel_2d_f_rgb565,
		215	fetch_texel_3d_f_rgb565
		216	},
		217	{
		218	MESA_FORMAT_RGB565_REV,
		219	fetch_texel_1d_f_rgb565_rev,
		220	fetch_texel_2d_f_rgb565_rev,
		221	fetch_texel_3d_f_rgb565_rev
		222	},
		223	{
		224	MESA_FORMAT_ARGB4444,
		225	fetch_texel_1d_f_argb4444,
		226	fetch_texel_2d_f_argb4444,
		227	fetch_texel_3d_f_argb4444
		228	},
		229	{
		230	MESA_FORMAT_ARGB4444_REV,
		231	fetch_texel_1d_f_argb4444_rev,
		232	fetch_texel_2d_f_argb4444_rev,
		233	fetch_texel_3d_f_argb4444_rev
		234	},
		235	{
		236	MESA_FORMAT_RGBA5551,
		237	fetch_texel_1d_f_rgba5551,
		238	fetch_texel_2d_f_rgba5551,
		239	fetch_texel_3d_f_rgba5551
		240	},
		241	{
		242	MESA_FORMAT_ARGB1555,
		243	fetch_texel_1d_f_argb1555,
		244	fetch_texel_2d_f_argb1555,
		245	fetch_texel_3d_f_argb1555
		246	},
		247	{
		248	MESA_FORMAT_ARGB1555_REV,
		249	fetch_texel_1d_f_argb1555_rev,
		250	fetch_texel_2d_f_argb1555_rev,
		251	fetch_texel_3d_f_argb1555_rev
		252	},
		253	{
		254	MESA_FORMAT_AL44,
		255	fetch_texel_1d_f_al44,
		256	fetch_texel_2d_f_al44,
		257	fetch_texel_3d_f_al44
		258	},
		259	{
		260	MESA_FORMAT_AL88,
		261	fetch_texel_1d_f_al88,
		262	fetch_texel_2d_f_al88,
		263	fetch_texel_3d_f_al88
		264	},
		265	{
		266	MESA_FORMAT_AL88_REV,
		267	fetch_texel_1d_f_al88_rev,
		268	fetch_texel_2d_f_al88_rev,
		269	fetch_texel_3d_f_al88_rev
		270	},
		271	{
		272	MESA_FORMAT_AL1616,
		273	fetch_texel_1d_f_al1616,
		274	fetch_texel_2d_f_al1616,
		275	fetch_texel_3d_f_al1616
		276	},
		277	{
		278	MESA_FORMAT_AL1616_REV,
		279	fetch_texel_1d_f_al1616_rev,
		280	fetch_texel_2d_f_al1616_rev,
		281	fetch_texel_3d_f_al1616_rev
		282	},
		283	{
		284	MESA_FORMAT_RGB332,
		285	fetch_texel_1d_f_rgb332,
		286	fetch_texel_2d_f_rgb332,
		287	fetch_texel_3d_f_rgb332
		288	},
		289	{
		290	MESA_FORMAT_A8,
		291	fetch_texel_1d_f_a8,
		292	fetch_texel_2d_f_a8,
		293	fetch_texel_3d_f_a8
		294	},
		295	{
		296	MESA_FORMAT_A16,
		297	fetch_texel_1d_f_a16,
		298	fetch_texel_2d_f_a16,
		299	fetch_texel_3d_f_a16
		300	},
		301	{
		302	MESA_FORMAT_L8,
		303	fetch_texel_1d_f_l8,
		304	fetch_texel_2d_f_l8,
		305	fetch_texel_3d_f_l8
		306	},
		307	{
		308	MESA_FORMAT_L16,
		309	fetch_texel_1d_f_l16,
		310	fetch_texel_2d_f_l16,
		311	fetch_texel_3d_f_l16
		312	},
		313	{
		314	MESA_FORMAT_I8,
		315	fetch_texel_1d_f_i8,
		316	fetch_texel_2d_f_i8,
		317	fetch_texel_3d_f_i8
		318	},
		319	{
		320	MESA_FORMAT_I16,
		321	fetch_texel_1d_f_i16,
		322	fetch_texel_2d_f_i16,
		323	fetch_texel_3d_f_i16
		324	},
		325	{
		326	MESA_FORMAT_YCBCR,
		327	fetch_texel_1d_f_ycbcr,
		328	fetch_texel_2d_f_ycbcr,
		329	fetch_texel_3d_f_ycbcr
		330	},
		331	{
		332	MESA_FORMAT_YCBCR_REV,
		333	fetch_texel_1d_f_ycbcr_rev,
		334	fetch_texel_2d_f_ycbcr_rev,
		335	fetch_texel_3d_f_ycbcr_rev
		336	},
		337	{
		338	MESA_FORMAT_R8,
		339	fetch_texel_1d_f_r8,
		340	fetch_texel_2d_f_r8,
		341	fetch_texel_3d_f_r8
		342	},
		343	{
		344	MESA_FORMAT_GR88,
		345	fetch_texel_1d_f_gr88,
		346	fetch_texel_2d_f_gr88,
		347	fetch_texel_3d_f_gr88
		348	},
		349	{
		350	MESA_FORMAT_RG88,
		351	fetch_texel_1d_f_rg88,
		352	fetch_texel_2d_f_rg88,
		353	fetch_texel_3d_f_rg88
		354	},
		355	{
		356	MESA_FORMAT_R16,
		357	fetch_texel_1d_f_r16,
		358	fetch_texel_2d_f_r16,
		359	fetch_texel_3d_f_r16
		360	},
		361	{
		362	MESA_FORMAT_GR1616,
		363	fetch_texel_1d_f_rg1616,
		364	fetch_texel_2d_f_rg1616,
		365	fetch_texel_3d_f_rg1616
		366	},
		367	{
		368	MESA_FORMAT_RG1616,
		369	fetch_texel_1d_f_rg1616_rev,
		370	fetch_texel_2d_f_rg1616_rev,
		371	fetch_texel_3d_f_rg1616_rev
		372	},
		373	{
		374	MESA_FORMAT_ARGB2101010,
		375	fetch_texel_1d_f_argb2101010,
		376	fetch_texel_2d_f_argb2101010,
		377	fetch_texel_3d_f_argb2101010
		378	},
		379	{
		380	MESA_FORMAT_Z24_S8,
		381	fetch_texel_1d_f_z24_s8,
		382	fetch_texel_2d_f_z24_s8,
		383	fetch_texel_3d_f_z24_s8
		384	},
		385	{
		386	MESA_FORMAT_S8_Z24,
		387	fetch_texel_1d_f_s8_z24,
		388	fetch_texel_2d_f_s8_z24,
		389	fetch_texel_3d_f_s8_z24
		390	},
		391	{
		392	MESA_FORMAT_Z16,
		393	fetch_texel_1d_f_z16,
		394	fetch_texel_2d_f_z16,
		395	fetch_texel_3d_f_z16
		396	},
		397	{
		398	MESA_FORMAT_X8_Z24,
		399	fetch_texel_1d_f_s8_z24,
		400	fetch_texel_2d_f_s8_z24,
		401	fetch_texel_3d_f_s8_z24
		402	},
		403	{
		404	MESA_FORMAT_Z24_X8,
		405	fetch_texel_1d_f_z24_s8,
		406	fetch_texel_2d_f_z24_s8,
		407	fetch_texel_3d_f_z24_s8
		408	},
		409	{
		410	MESA_FORMAT_Z32,
		411	fetch_texel_1d_f_z32,
		412	fetch_texel_2d_f_z32,
		413	fetch_texel_3d_f_z32
		414	},
		415	{
		416	MESA_FORMAT_S8,
		417	NULL,
		418	NULL,
		419	NULL
		420	},
		421	{
		422	MESA_FORMAT_SRGB8,
		423	fetch_texel_1d_srgb8,
		424	fetch_texel_2d_srgb8,
		425	fetch_texel_3d_srgb8
		426	},
		427	{
		428	MESA_FORMAT_SRGBA8,
		429	fetch_texel_1d_srgba8,
		430	fetch_texel_2d_srgba8,
		431	fetch_texel_3d_srgba8
		432	},
		433	{
		434	MESA_FORMAT_SARGB8,
		435	fetch_texel_1d_sargb8,
		436	fetch_texel_2d_sargb8,
		437	fetch_texel_3d_sargb8
		438	},
		439	{
		440	MESA_FORMAT_SL8,
		441	fetch_texel_1d_sl8,
		442	fetch_texel_2d_sl8,
		443	fetch_texel_3d_sl8
		444	},
		445	{
		446	MESA_FORMAT_SLA8,
		447	fetch_texel_1d_sla8,
		448	fetch_texel_2d_sla8,
		449	fetch_texel_3d_sla8
		450	},
		451	{
		452	MESA_FORMAT_SRGB_DXT1,
		453	fetch_compressed,
		454	fetch_compressed,
		455	fetch_compressed
		456	},
		457	{
		458	MESA_FORMAT_SRGBA_DXT1,
		459	fetch_compressed,
		460	fetch_compressed,
		461	fetch_compressed
		462	},
		463	{
		464	MESA_FORMAT_SRGBA_DXT3,
		465	fetch_compressed,
		466	fetch_compressed,
		467	fetch_compressed
		468	},
		469	{
		470	MESA_FORMAT_SRGBA_DXT5,
		471	fetch_compressed,
		472	fetch_compressed,
		473	fetch_compressed
		474	},
		475
		476	{
		477	MESA_FORMAT_RGB_FXT1,
		478	fetch_compressed,
		479	fetch_compressed,
		480	fetch_compressed
		481	},
		482	{
		483	MESA_FORMAT_RGBA_FXT1,
		484	fetch_compressed,
		485	fetch_compressed,
		486	fetch_compressed
		487	},
		488	{
		489	MESA_FORMAT_RGB_DXT1,
		490	fetch_compressed,
		491	fetch_compressed,
		492	fetch_compressed
		493	},
		494	{
		495	MESA_FORMAT_RGBA_DXT1,
		496	fetch_compressed,
		497	fetch_compressed,
		498	fetch_compressed
		499	},
		500	{
		501	MESA_FORMAT_RGBA_DXT3,
		502	fetch_compressed,
		503	fetch_compressed,
		504	fetch_compressed
		505	},
		506	{
		507	MESA_FORMAT_RGBA_DXT5,
		508	fetch_compressed,
		509	fetch_compressed,
		510	fetch_compressed
		511	},
		512	{
		513	MESA_FORMAT_RGBA_FLOAT32,
		514	fetch_texel_1d_f_rgba_f32,
		515	fetch_texel_2d_f_rgba_f32,
		516	fetch_texel_3d_f_rgba_f32
		517	},
		518	{
		519	MESA_FORMAT_RGBA_FLOAT16,
		520	fetch_texel_1d_f_rgba_f16,
		521	fetch_texel_2d_f_rgba_f16,
		522	fetch_texel_3d_f_rgba_f16
		523	},
		524	{
		525	MESA_FORMAT_RGB_FLOAT32,
		526	fetch_texel_1d_f_rgb_f32,
		527	fetch_texel_2d_f_rgb_f32,
		528	fetch_texel_3d_f_rgb_f32
		529	},
		530	{
		531	MESA_FORMAT_RGB_FLOAT16,
		532	fetch_texel_1d_f_rgb_f16,
		533	fetch_texel_2d_f_rgb_f16,
		534	fetch_texel_3d_f_rgb_f16
		535	},
		536	{
		537	MESA_FORMAT_ALPHA_FLOAT32,
		538	fetch_texel_1d_f_alpha_f32,
		539	fetch_texel_2d_f_alpha_f32,
		540	fetch_texel_3d_f_alpha_f32
		541	},
		542	{
		543	MESA_FORMAT_ALPHA_FLOAT16,
		544	fetch_texel_1d_f_alpha_f16,
		545	fetch_texel_2d_f_alpha_f16,
		546	fetch_texel_3d_f_alpha_f16
		547	},
		548	{
		549	MESA_FORMAT_LUMINANCE_FLOAT32,
		550	fetch_texel_1d_f_luminance_f32,
		551	fetch_texel_2d_f_luminance_f32,
		552	fetch_texel_3d_f_luminance_f32
		553	},
		554	{
		555	MESA_FORMAT_LUMINANCE_FLOAT16,
		556	fetch_texel_1d_f_luminance_f16,
		557	fetch_texel_2d_f_luminance_f16,
		558	fetch_texel_3d_f_luminance_f16
		559	},
		560	{
		561	MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32,
		562	fetch_texel_1d_f_luminance_alpha_f32,
		563	fetch_texel_2d_f_luminance_alpha_f32,
		564	fetch_texel_3d_f_luminance_alpha_f32
		565	},
		566	{
		567	MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16,
		568	fetch_texel_1d_f_luminance_alpha_f16,
		569	fetch_texel_2d_f_luminance_alpha_f16,
		570	fetch_texel_3d_f_luminance_alpha_f16
		571	},
		572	{
		573	MESA_FORMAT_INTENSITY_FLOAT32,
		574	fetch_texel_1d_f_intensity_f32,
		575	fetch_texel_2d_f_intensity_f32,
		576	fetch_texel_3d_f_intensity_f32
		577	},
		578	{
		579	MESA_FORMAT_INTENSITY_FLOAT16,
		580	fetch_texel_1d_f_intensity_f16,
		581	fetch_texel_2d_f_intensity_f16,
		582	fetch_texel_3d_f_intensity_f16
		583	},
		584	{
		585	MESA_FORMAT_R_FLOAT32,
		586	fetch_texel_1d_f_r_f32,
		587	fetch_texel_2d_f_r_f32,
		588	fetch_texel_3d_f_r_f32
		589	},
		590	{
		591	MESA_FORMAT_R_FLOAT16,
		592	fetch_texel_1d_f_r_f16,
		593	fetch_texel_2d_f_r_f16,
		594	fetch_texel_3d_f_r_f16
		595	},
		596	{
		597	MESA_FORMAT_RG_FLOAT32,
		598	fetch_texel_1d_f_rg_f32,
		599	fetch_texel_2d_f_rg_f32,
		600	fetch_texel_3d_f_rg_f32
		601	},
		602	{
		603	MESA_FORMAT_RG_FLOAT16,
		604	fetch_texel_1d_f_rg_f16,
		605	fetch_texel_2d_f_rg_f16,
		606	fetch_texel_3d_f_rg_f16
		607	},
		608
		609	{
		610	MESA_FORMAT_ALPHA_UINT8,
		611	NULL,
		612	NULL,
		613	NULL
		614	},
		615
		616	{
		617	MESA_FORMAT_ALPHA_UINT16,
		618	NULL,
		619	NULL,
		620	NULL
		621	},
		622
		623	{
		624	MESA_FORMAT_ALPHA_UINT32,
		625	NULL,
		626	NULL,
		627	NULL
		628	},
		629
		630	{
		631	MESA_FORMAT_ALPHA_INT8,
		632	NULL,
		633	NULL,
		634	NULL
		635	},
		636
		637	{
		638	MESA_FORMAT_ALPHA_INT16,
		639	NULL,
		640	NULL,
		641	NULL
		642	},
		643
		644	{
		645	MESA_FORMAT_ALPHA_INT32,
		646	NULL,
		647	NULL,
		648	NULL
		649	},
		650
		651
		652	{
		653	MESA_FORMAT_INTENSITY_UINT8,
		654	NULL,
		655	NULL,
		656	NULL
		657	},
		658
		659	{
		660	MESA_FORMAT_INTENSITY_UINT16,
		661	NULL,
		662	NULL,
		663	NULL
		664	},
		665
		666	{
		667	MESA_FORMAT_INTENSITY_UINT32,
		668	NULL,
		669	NULL,
		670	NULL
		671	},
		672
		673	{
		674	MESA_FORMAT_INTENSITY_INT8,
		675	NULL,
		676	NULL,
		677	NULL
		678	},
		679
		680	{
		681	MESA_FORMAT_INTENSITY_INT16,
		682	NULL,
		683	NULL,
		684	NULL
		685	},
		686
		687	{
		688	MESA_FORMAT_INTENSITY_INT32,
		689	NULL,
		690	NULL,
		691	NULL
		692	},
		693
		694
		695	{
		696	MESA_FORMAT_LUMINANCE_UINT8,
		697	NULL,
		698	NULL,
		699	NULL
		700	},
		701
		702	{
		703	MESA_FORMAT_LUMINANCE_UINT16,
		704	NULL,
		705	NULL,
		706	NULL
		707	},
		708
		709	{
		710	MESA_FORMAT_LUMINANCE_UINT32,
		711	NULL,
		712	NULL,
		713	NULL
		714	},
		715
		716	{
		717	MESA_FORMAT_LUMINANCE_INT8,
		718	NULL,
		719	NULL,
		720	NULL
		721	},
		722
		723	{
		724	MESA_FORMAT_LUMINANCE_INT16,
		725	NULL,
		726	NULL,
		727	NULL
		728	},
		729
		730	{
		731	MESA_FORMAT_LUMINANCE_INT32,
		732	NULL,
		733	NULL,
		734	NULL
		735	},
		736
		737
		738	{
		739	MESA_FORMAT_LUMINANCE_ALPHA_UINT8,
		740	NULL,
		741	NULL,
		742	NULL
		743	},
		744
		745	{
		746	MESA_FORMAT_LUMINANCE_ALPHA_UINT16,
		747	NULL,
		748	NULL,
		749	NULL
		750	},
		751
		752	{
		753	MESA_FORMAT_LUMINANCE_ALPHA_UINT32,
		754	NULL,
		755	NULL,
		756	NULL
		757	},
		758
		759	{
		760	MESA_FORMAT_LUMINANCE_ALPHA_INT8,
		761	NULL,
		762	NULL,
		763	NULL
		764	},
		765
		766	{
		767	MESA_FORMAT_LUMINANCE_ALPHA_INT16,
		768	NULL,
		769	NULL,
		770	NULL
		771	},
		772
		773	{
		774	MESA_FORMAT_LUMINANCE_ALPHA_INT32,
		775	NULL,
		776	NULL,
		777	NULL
		778	},
		779
		780
		781	{
		782	MESA_FORMAT_R_INT8,
		783	NULL,
		784	NULL,
		785	NULL
		786	},
		787
		788	{
		789	MESA_FORMAT_RG_INT8,
		790	NULL,
		791	NULL,
		792	NULL
		793	},
		794
		795	{
		796	MESA_FORMAT_RGB_INT8,
		797	NULL,
		798	NULL,
		799	NULL
		800	},
		801
		802	/* non-normalized, signed int */
		803	{
		804	MESA_FORMAT_RGBA_INT8,
		805	fetch_texel_1d_rgba_int8,
		806	fetch_texel_2d_rgba_int8,
		807	fetch_texel_3d_rgba_int8
		808	},
		809	{
		810	MESA_FORMAT_R_INT16,
		811	NULL,
		812	NULL,
		813	NULL
		814	},
		815	{
		816	MESA_FORMAT_RG_INT16,
		817	NULL,
		818	NULL,
		819	NULL
		820	},
		821	{
		822	MESA_FORMAT_RGB_INT16,
		823	NULL,
		824	NULL,
		825	NULL
		826	},
		827	{
		828	MESA_FORMAT_RGBA_INT16,
		829	fetch_texel_1d_rgba_int16,
		830	fetch_texel_2d_rgba_int16,
		831	fetch_texel_3d_rgba_int16
		832	},
		833	{
		834	MESA_FORMAT_R_INT32,
		835	NULL,
		836	NULL,
		837	NULL
		838	},
		839	{
		840	MESA_FORMAT_RG_INT32,
		841	NULL,
		842	NULL,
		843	NULL
		844	},
		845	{
		846	MESA_FORMAT_RGB_INT32,
		847	NULL,
		848	NULL,
		849	NULL
		850	},
		851	{
		852	MESA_FORMAT_RGBA_INT32,
		853	fetch_texel_1d_rgba_int32,
		854	fetch_texel_2d_rgba_int32,
		855	fetch_texel_3d_rgba_int32
		856	},
		857
		858	/* non-normalized, unsigned int */
		859	{
		860	MESA_FORMAT_R_UINT8,
		861	NULL,
		862	NULL,
		863	NULL
		864	},
		865	{
		866	MESA_FORMAT_RG_UINT8,
		867	NULL,
		868	NULL,
		869	NULL
		870	},
		871	{
		872	MESA_FORMAT_RGB_UINT8,
		873	NULL,
		874	NULL,
		875	NULL
		876	},
		877	{
		878	MESA_FORMAT_RGBA_UINT8,
		879	fetch_texel_1d_rgba_uint8,
		880	fetch_texel_2d_rgba_uint8,
		881	fetch_texel_3d_rgba_uint8
		882	},
		883	{
		884	MESA_FORMAT_R_UINT16,
		885	NULL,
		886	NULL,
		887	NULL
		888	},
		889	{
		890	MESA_FORMAT_RG_UINT16,
		891	NULL,
		892	NULL,
		893	NULL
		894	},
		895	{
		896	MESA_FORMAT_RGB_UINT16,
		897	NULL,
		898	NULL,
		899	NULL
		900	},
		901	{
		902	MESA_FORMAT_RGBA_UINT16,
		903	fetch_texel_1d_rgba_uint16,
		904	fetch_texel_2d_rgba_uint16,
		905	fetch_texel_3d_rgba_uint16
		906	},
		907	{
		908	MESA_FORMAT_R_UINT32,
		909	NULL,
		910	NULL,
		911	NULL
		912	},
		913	{
		914	MESA_FORMAT_RG_UINT32,
		915	NULL,
		916	NULL,
		917	NULL
		918	},
		919	{
		920	MESA_FORMAT_RGB_UINT32,
		921	NULL,
		922	NULL,
		923	NULL
		924	},
		925	{
		926	MESA_FORMAT_RGBA_UINT32,
		927	fetch_texel_1d_rgba_uint32,
		928	fetch_texel_2d_rgba_uint32,
		929	fetch_texel_3d_rgba_uint32
		930	},
		931
		932	/* dudv */
		933	{
		934	MESA_FORMAT_DUDV8,
		935	fetch_texel_1d_dudv8,
		936	fetch_texel_2d_dudv8,
		937	fetch_texel_3d_dudv8
		938	},
		939
		940	/* signed, normalized */
		941	{
		942	MESA_FORMAT_SIGNED_R8,
		943	fetch_texel_1d_signed_r8,
		944	fetch_texel_2d_signed_r8,
		945	fetch_texel_3d_signed_r8
		946	},
		947	{
		948	MESA_FORMAT_SIGNED_RG88_REV,
		949	fetch_texel_1d_signed_rg88_rev,
		950	fetch_texel_2d_signed_rg88_rev,
		951	fetch_texel_3d_signed_rg88_rev
		952	},
		953	{
		954	MESA_FORMAT_SIGNED_RGBX8888,
		955	fetch_texel_1d_signed_rgbx8888,
		956	fetch_texel_2d_signed_rgbx8888,
		957	fetch_texel_3d_signed_rgbx8888
		958	},
		959	{
		960	MESA_FORMAT_SIGNED_RGBA8888,
		961	fetch_texel_1d_signed_rgba8888,
		962	fetch_texel_2d_signed_rgba8888,
		963	fetch_texel_3d_signed_rgba8888
		964	},
		965	{
		966	MESA_FORMAT_SIGNED_RGBA8888_REV,
		967	fetch_texel_1d_signed_rgba8888_rev,
		968	fetch_texel_2d_signed_rgba8888_rev,
		969	fetch_texel_3d_signed_rgba8888_rev
		970	},
		971	{
		972	MESA_FORMAT_SIGNED_R16,
		973	fetch_texel_1d_signed_r16,
		974	fetch_texel_2d_signed_r16,
		975	fetch_texel_3d_signed_r16
		976	},
		977	{
		978	MESA_FORMAT_SIGNED_GR1616,
		979	fetch_texel_1d_signed_rg1616,
		980	fetch_texel_2d_signed_rg1616,
		981	fetch_texel_3d_signed_rg1616
		982	},
		983	{
		984	MESA_FORMAT_SIGNED_RGB_16,
		985	fetch_texel_1d_signed_rgb_16,
		986	fetch_texel_2d_signed_rgb_16,
		987	fetch_texel_3d_signed_rgb_16
		988	},
		989	{
		990	MESA_FORMAT_SIGNED_RGBA_16,
		991	fetch_texel_1d_signed_rgba_16,
		992	fetch_texel_2d_signed_rgba_16,
		993	fetch_texel_3d_signed_rgba_16
		994	},
		995	{
		996	MESA_FORMAT_RGBA_16,
		997	fetch_texel_1d_rgba_16,
		998	fetch_texel_2d_rgba_16,
		999	fetch_texel_3d_rgba_16
		1000	},
		1001	{
		1002	MESA_FORMAT_RED_RGTC1,
		1003	fetch_compressed,
		1004	fetch_compressed,
		1005	fetch_compressed
		1006	},
		1007	{
		1008	MESA_FORMAT_SIGNED_RED_RGTC1,
		1009	fetch_compressed,
		1010	fetch_compressed,
		1011	fetch_compressed
		1012	},
		1013	{
		1014	MESA_FORMAT_RG_RGTC2,
		1015	fetch_compressed,
		1016	fetch_compressed,
		1017	fetch_compressed
		1018	},
		1019	{
		1020	MESA_FORMAT_SIGNED_RG_RGTC2,
		1021	fetch_compressed,
		1022	fetch_compressed,
		1023	fetch_compressed
		1024	},
		1025	{
		1026	MESA_FORMAT_L_LATC1,
		1027	fetch_compressed,
		1028	fetch_compressed,
		1029	fetch_compressed
		1030	},
		1031	{
		1032	MESA_FORMAT_SIGNED_L_LATC1,
		1033	fetch_compressed,
		1034	fetch_compressed,
		1035	fetch_compressed
		1036	},
		1037	{
		1038	MESA_FORMAT_LA_LATC2,
		1039	fetch_compressed,
		1040	fetch_compressed,
		1041	fetch_compressed
		1042	},
		1043	{
		1044	MESA_FORMAT_SIGNED_LA_LATC2,
		1045	fetch_compressed,
		1046	fetch_compressed,
		1047	fetch_compressed
		1048	},
		1049	{
		1050	MESA_FORMAT_ETC1_RGB8,
		1051	fetch_compressed,
		1052	fetch_compressed,
		1053	fetch_compressed
		1054	},
		1055	{
		1056	MESA_FORMAT_ETC2_RGB8,
		1057	fetch_compressed,
		1058	fetch_compressed,
		1059	fetch_compressed
		1060	},
		1061	{
		1062	MESA_FORMAT_ETC2_SRGB8,
		1063	fetch_compressed,
		1064	fetch_compressed,
		1065	fetch_compressed
		1066	},
		1067	{
		1068	MESA_FORMAT_ETC2_RGBA8_EAC,
		1069	fetch_compressed,
		1070	fetch_compressed,
		1071	fetch_compressed
		1072	},
		1073	{
		1074	MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC,
		1075	fetch_compressed,
		1076	fetch_compressed,
		1077	fetch_compressed
		1078	},
		1079	{
		1080	MESA_FORMAT_ETC2_R11_EAC,
		1081	fetch_compressed,
		1082	fetch_compressed,
		1083	fetch_compressed
		1084	},
		1085	{
		1086	MESA_FORMAT_ETC2_RG11_EAC,
		1087	fetch_compressed,
		1088	fetch_compressed,
		1089	fetch_compressed
		1090	},
		1091	{
		1092	MESA_FORMAT_ETC2_SIGNED_R11_EAC,
		1093	fetch_compressed,
		1094	fetch_compressed,
		1095	fetch_compressed
		1096	},
		1097	{
		1098	MESA_FORMAT_ETC2_SIGNED_RG11_EAC,
		1099	fetch_compressed,
		1100	fetch_compressed,
		1101	fetch_compressed
		1102	},
		1103	{
		1104	MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1,
		1105	fetch_compressed,
		1106	fetch_compressed,
		1107	fetch_compressed
		1108	},
		1109	{
		1110	MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1,
		1111	fetch_compressed,
		1112	fetch_compressed,
		1113	fetch_compressed
		1114	},
		1115	{
		1116	MESA_FORMAT_SIGNED_A8,
		1117	fetch_texel_1d_signed_a8,
		1118	fetch_texel_2d_signed_a8,
		1119	fetch_texel_3d_signed_a8
		1120	},
		1121	{
		1122	MESA_FORMAT_SIGNED_L8,
		1123	fetch_texel_1d_signed_l8,
		1124	fetch_texel_2d_signed_l8,
		1125	fetch_texel_3d_signed_l8
		1126	},
		1127	{
		1128	MESA_FORMAT_SIGNED_AL88,
		1129	fetch_texel_1d_signed_al88,
		1130	fetch_texel_2d_signed_al88,
		1131	fetch_texel_3d_signed_al88
		1132	},
		1133	{
		1134	MESA_FORMAT_SIGNED_I8,
		1135	fetch_texel_1d_signed_i8,
		1136	fetch_texel_2d_signed_i8,
		1137	fetch_texel_3d_signed_i8
		1138	},
		1139	{
		1140	MESA_FORMAT_SIGNED_A16,
		1141	fetch_texel_1d_signed_a16,
		1142	fetch_texel_2d_signed_a16,
		1143	fetch_texel_3d_signed_a16
		1144	},
		1145	{
		1146	MESA_FORMAT_SIGNED_L16,
		1147	fetch_texel_1d_signed_l16,
		1148	fetch_texel_2d_signed_l16,
		1149	fetch_texel_3d_signed_l16
		1150	},
		1151	{
		1152	MESA_FORMAT_SIGNED_AL1616,
		1153	fetch_texel_1d_signed_al1616,
		1154	fetch_texel_2d_signed_al1616,
		1155	fetch_texel_3d_signed_al1616
		1156	},
		1157	{
		1158	MESA_FORMAT_SIGNED_I16,
		1159	fetch_texel_1d_signed_i16,
		1160	fetch_texel_2d_signed_i16,
		1161	fetch_texel_3d_signed_i16
		1162	},
		1163	{
		1164	MESA_FORMAT_RGB9_E5_FLOAT,
		1165	fetch_texel_1d_rgb9_e5,
		1166	fetch_texel_2d_rgb9_e5,
		1167	fetch_texel_3d_rgb9_e5
		1168	},
		1169	{
		1170	MESA_FORMAT_R11_G11_B10_FLOAT,
		1171	fetch_texel_1d_r11_g11_b10f,
		1172	fetch_texel_2d_r11_g11_b10f,
		1173	fetch_texel_3d_r11_g11_b10f
		1174	},
		1175	{
		1176	MESA_FORMAT_Z32_FLOAT,
		1177	fetch_texel_1d_f_r_f32, /* Reuse the R32F functions. */
		1178	fetch_texel_2d_f_r_f32,
		1179	fetch_texel_3d_f_r_f32
		1180	},
		1181	{
		1182	MESA_FORMAT_Z32_FLOAT_X24S8,
		1183	fetch_texel_1d_z32f_x24s8,
		1184	fetch_texel_2d_z32f_x24s8,
		1185	fetch_texel_3d_z32f_x24s8
		1186	},
		1187	{
		1188	MESA_FORMAT_ARGB2101010_UINT,
		1189	NULL,
		1190	NULL,
		1191	NULL
		1192	},
		1193	{
		1194	MESA_FORMAT_ABGR2101010_UINT,
		1195	NULL,
		1196	NULL,
		1197	NULL
		1198	},
		1199	{
		1200	MESA_FORMAT_XRGB4444_UNORM,
		1201	NULL,
		1202	NULL,
		1203	NULL
		1204	},
		1205	{
		1206	MESA_FORMAT_XRGB1555_UNORM,
		1207	NULL,
		1208	NULL,
		1209	NULL
		1210	},
		1211	{
		1212	MESA_FORMAT_XBGR8888_SNORM,
		1213	NULL,
		1214	NULL,
		1215	NULL
		1216	},
		1217	{
		1218	MESA_FORMAT_XBGR8888_SRGB,
		1219	NULL,
		1220	NULL,
		1221	NULL
		1222	},
		1223	{
		1224	MESA_FORMAT_XBGR8888_UINT,
		1225	NULL,
		1226	NULL,
		1227	NULL
		1228	},
		1229	{
		1230	MESA_FORMAT_XBGR8888_SINT,
		1231	NULL,
		1232	NULL,
		1233	NULL
		1234	},
		1235	{
		1236	MESA_FORMAT_XRGB2101010_UNORM,
		1237	NULL,
		1238	NULL,
		1239	NULL
		1240	},
		1241	{
		1242	MESA_FORMAT_XBGR16161616_UNORM,
		1243	fetch_texel_1d_xbgr16161616_unorm,
		1244	fetch_texel_2d_xbgr16161616_unorm,
		1245	fetch_texel_3d_xbgr16161616_unorm
		1246	},
		1247	{
		1248	MESA_FORMAT_XBGR16161616_SNORM,
		1249	NULL,
		1250	NULL,
		1251	NULL
		1252	},
		1253	{
		1254	MESA_FORMAT_XBGR16161616_FLOAT,
		1255	fetch_texel_1d_xbgr16161616_float,
		1256	fetch_texel_2d_xbgr16161616_float,
		1257	fetch_texel_3d_xbgr16161616_float
		1258	},
		1259	{
		1260	MESA_FORMAT_XBGR16161616_UINT,
		1261	NULL,
		1262	NULL,
		1263	NULL
		1264	},
		1265	{
		1266	MESA_FORMAT_XBGR16161616_SINT,
		1267	NULL,
		1268	NULL,
		1269	NULL
		1270	},
		1271	{
		1272	MESA_FORMAT_XBGR32323232_FLOAT,
		1273	fetch_texel_1d_xbgr32323232_float,
		1274	fetch_texel_2d_xbgr32323232_float,
		1275	fetch_texel_3d_xbgr32323232_float
		1276	},
		1277	{
		1278	MESA_FORMAT_XBGR32323232_UINT,
		1279	NULL,
		1280	NULL,
		1281	NULL
		1282	},
		1283	{
		1284	MESA_FORMAT_XBGR32323232_SINT,
		1285	NULL,
		1286	NULL,
		1287	NULL
		1288	},
		1289	};
		1290
		1291
		1292	/**
		1293	* Initialize the texture image's FetchTexel methods.
		1294	*/
		1295	static void
		1296	set_fetch_functions(const struct gl_sampler_object *samp,
		1297	struct swrast_texture_image *texImage, GLuint dims)
		1298	{
		1299	gl_format format = texImage->Base.TexFormat;
		1300
		1301	#ifdef DEBUG
		1302	/* check that the table entries are sorted by format name */
		1303	gl_format fmt;
		1304	for (fmt = 0; fmt < MESA_FORMAT_COUNT; fmt++) {
		1305	assert(texfetch_funcs[fmt].Name == fmt);
		1306	}
		1307	#endif
		1308
		1309	STATIC_ASSERT(Elements(texfetch_funcs) == MESA_FORMAT_COUNT);
		1310
		1311	if (samp->sRGBDecode == GL_SKIP_DECODE_EXT &&
		1312	_mesa_get_format_color_encoding(format) == GL_SRGB) {
		1313	format = _mesa_get_srgb_format_linear(format);
		1314	}
		1315
		1316	assert(format < MESA_FORMAT_COUNT);
		1317
		1318	switch (dims) {
		1319	case 1:
		1320	texImage->FetchTexel = texfetch_funcs[format].Fetch1D;
		1321	break;
		1322	case 2:
		1323	texImage->FetchTexel = texfetch_funcs[format].Fetch2D;
		1324	break;
		1325	case 3:
		1326	texImage->FetchTexel = texfetch_funcs[format].Fetch3D;
		1327	break;
		1328	default:
		1329	assert(!"Bad dims in set_fetch_functions()");
		1330	}
		1331
		1332	texImage->FetchCompressedTexel = _mesa_get_compressed_fetch_func(format);
		1333
		1334	ASSERT(texImage->FetchTexel);
		1335	}
		1336
		1337	void
		1338	_mesa_update_fetch_functions(struct gl_context *ctx, GLuint unit)
		1339	{
		1340	struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
		1341	struct gl_sampler_object *samp;
		1342	GLuint face, i;
		1343	GLuint dims;
		1344
		1345	if (!texObj)
		1346	return;
		1347
		1348	samp = _mesa_get_samplerobj(ctx, unit);
		1349
		1350	dims = _mesa_get_texture_dimensions(texObj->Target);
		1351
		1352	for (face = 0; face < 6; face++) {
		1353	for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
		1354	if (texObj->Image[face][i]) {
		1355	set_fetch_functions(samp,
		1356	swrast_texture_image(texObj->Image[face][i]),
		1357	dims);
		1358	}
		1359	}
		1360	}
		1361	}

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(root)/contrib/sdk/sources/Mesa/src/mesa/swrast/s_texfetch.c – Rev 5063