WebSVN – Kolibri OS – Blame – /contrib/sdk/sources/Mesa/mesa-10.6.0/src/gallium/drivers/r300/r300_screen.c

Rev	Author	Line No.	Line
5564	serge	1	/*
		2	* Copyright 2008 Corbin Simpson
		3	* Copyright 2010 Marek Olšák
		4	*
		5	* Permission is hereby granted, free of charge, to any person obtaining a
		6	* copy of this software and associated documentation files (the "Software"),
		7	* to deal in the Software without restriction, including without limitation
		8	* on the rights to use, copy, modify, merge, publish, distribute, sub
		9	* license, and/or sell copies of the Software, and to permit persons to whom
		10	* the Software is furnished to do so, subject to the following conditions:
		11	*
		12	* The above copyright notice and this permission notice (including the next
		13	* paragraph) shall be included in all copies or substantial portions of the
		14	* Software.
		15	*
		16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
		17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
		18	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
		19	* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
		20	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
		21	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
		22	* USE OR OTHER DEALINGS IN THE SOFTWARE. */
		23
		24	#include "util/u_format.h"
		25	#include "util/u_format_s3tc.h"
		26	#include "util/u_memory.h"
		27	#include "os/os_time.h"
		28	#include "vl/vl_decoder.h"
		29	#include "vl/vl_video_buffer.h"
		30
		31	#include "r300_context.h"
		32	#include "r300_texture.h"
		33	#include "r300_screen_buffer.h"
		34	#include "r300_state_inlines.h"
		35	#include "r300_public.h"
		36
		37	#include "draw/draw_context.h"
		38
		39	/* Return the identifier behind whom the brave coders responsible for this
		40	* amalgamation of code, sweat, and duct tape, routinely obscure their names.
		41	*
		42	* ...I should have just put "Corbin Simpson", but I'm not that cool.
		43	*
		44	* (Or egotistical. Yet.) */
		45	static const char* r300_get_vendor(struct pipe_screen* pscreen)
		46	{
		47	return "X.Org R300 Project";
		48	}
		49
		50	static const char* r300_get_device_vendor(struct pipe_screen* pscreen)
		51	{
		52	return "ATI";
		53	}
		54
		55	static const char* chip_families[] = {
		56	"unknown",
		57	"ATI R300",
		58	"ATI R350",
		59	"ATI RV350",
		60	"ATI RV370",
		61	"ATI RV380",
		62	"ATI RS400",
		63	"ATI RC410",
		64	"ATI RS480",
		65	"ATI R420",
		66	"ATI R423",
		67	"ATI R430",
		68	"ATI R480",
		69	"ATI R481",
		70	"ATI RV410",
		71	"ATI RS600",
		72	"ATI RS690",
		73	"ATI RS740",
		74	"ATI RV515",
		75	"ATI R520",
		76	"ATI RV530",
		77	"ATI R580",
		78	"ATI RV560",
		79	"ATI RV570"
		80	};
		81
		82	static const char* r300_get_name(struct pipe_screen* pscreen)
		83	{
		84	struct r300_screen* r300screen = r300_screen(pscreen);
		85
		86	return chip_families[r300screen->caps.family];
		87	}
		88
		89	static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
		90	{
		91	struct r300_screen* r300screen = r300_screen(pscreen);
		92	boolean is_r500 = r300screen->caps.is_r500;
		93
		94	switch (param) {
		95	/* Supported features (boolean caps). */
		96	case PIPE_CAP_NPOT_TEXTURES:
		97	case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
		98	case PIPE_CAP_TWO_SIDED_STENCIL:
		99	case PIPE_CAP_ANISOTROPIC_FILTER:
		100	case PIPE_CAP_POINT_SPRITE:
		101	case PIPE_CAP_OCCLUSION_QUERY:
		102	case PIPE_CAP_TEXTURE_SHADOW_MAP:
		103	case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
		104	case PIPE_CAP_BLEND_EQUATION_SEPARATE:
		105	case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
		106	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
		107	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
		108	case PIPE_CAP_CONDITIONAL_RENDER:
		109	case PIPE_CAP_TEXTURE_BARRIER:
		110	case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
		111	case PIPE_CAP_USER_INDEX_BUFFERS:
		112	case PIPE_CAP_USER_CONSTANT_BUFFERS:
		113	case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
		114	case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
		115	case PIPE_CAP_CLIP_HALFZ:
		116	return 1;
		117
		118	case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
		119	return R300_BUFFER_ALIGNMENT;
		120
		121	case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
		122	return 16;
		123
		124	case PIPE_CAP_GLSL_FEATURE_LEVEL:
		125	return 120;
		126
		127	/* r300 cannot do swizzling of compressed textures. Supported otherwise. */
		128	case PIPE_CAP_TEXTURE_SWIZZLE:
		129	return util_format_s3tc_enabled ? r300screen->caps.dxtc_swizzle : 1;
		130
		131	/* We don't support color clamping on r500, so that we can use color
		132	* intepolators for generic varyings. */
		133	case PIPE_CAP_VERTEX_COLOR_CLAMPED:
		134	return !is_r500;
		135
		136	/* Supported on r500 only. */
		137	case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
		138	case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
		139	case PIPE_CAP_SM3:
		140	return is_r500 ? 1 : 0;
		141
		142	/* Unsupported features. */
		143	case PIPE_CAP_QUERY_TIME_ELAPSED:
		144	case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
		145	case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
		146	case PIPE_CAP_INDEP_BLEND_ENABLE:
		147	case PIPE_CAP_INDEP_BLEND_FUNC:
		148	case PIPE_CAP_DEPTH_CLIP_DISABLE:
		149	case PIPE_CAP_SHADER_STENCIL_EXPORT:
		150	case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
		151	case PIPE_CAP_TGSI_INSTANCEID:
		152	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
		153	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
		154	case PIPE_CAP_SEAMLESS_CUBE_MAP:
		155	case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
		156	case PIPE_CAP_MIN_TEXEL_OFFSET:
		157	case PIPE_CAP_MAX_TEXEL_OFFSET:
		158	case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
		159	case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
		160	case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
		161	case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
		162	case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
		163	case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
		164	case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
		165	case PIPE_CAP_MAX_VERTEX_STREAMS:
		166	case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
		167	case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
		168	case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
		169	case PIPE_CAP_COMPUTE:
		170	case PIPE_CAP_START_INSTANCE:
		171	case PIPE_CAP_QUERY_TIMESTAMP:
		172	case PIPE_CAP_TEXTURE_MULTISAMPLE:
		173	case PIPE_CAP_CUBE_MAP_ARRAY:
		174	case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
		175	case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
		176	case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
		177	case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
		178	case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
		179	case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
		180	case PIPE_CAP_TEXTURE_GATHER_SM5:
		181	case PIPE_CAP_TEXTURE_QUERY_LOD:
		182	case PIPE_CAP_FAKE_SW_MSAA:
		183	case PIPE_CAP_SAMPLE_SHADING:
		184	case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
		185	case PIPE_CAP_DRAW_INDIRECT:
		186	case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
		187	case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
		188	case PIPE_CAP_SAMPLER_VIEW_TARGET:
		189	case PIPE_CAP_VERTEXID_NOBASE:
		190	case PIPE_CAP_POLYGON_OFFSET_CLAMP:
		191	case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
		192	case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
		193	case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
		194	return 0;
		195
		196	/* SWTCL-only features. */
		197	case PIPE_CAP_PRIMITIVE_RESTART:
		198	case PIPE_CAP_USER_VERTEX_BUFFERS:
		199	case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
		200	return !r300screen->caps.has_tcl;
		201
		202	/* HWTCL-only features / limitations. */
		203	case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
		204	case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
		205	case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
		206	return r300screen->caps.has_tcl;
		207	case PIPE_CAP_TGSI_TEXCOORD:
		208	return 0;
		209
		210	/* Texturing. */
		211	case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
		212	case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
		213	case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
		214	/* 13 == 4096, 12 == 2048 */
		215	return is_r500 ? 13 : 12;
		216
		217	/* Render targets. */
		218	case PIPE_CAP_MAX_RENDER_TARGETS:
		219	return 4;
		220	case PIPE_CAP_ENDIANNESS:
		221	return PIPE_ENDIAN_LITTLE;
		222
		223	case PIPE_CAP_MAX_VIEWPORTS:
		224	return 1;
		225
		226	case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
		227	return 2048;
		228
		229	case PIPE_CAP_VENDOR_ID:
		230	return 0x1002;
		231	case PIPE_CAP_DEVICE_ID:
		232	return r300screen->info.pci_id;
		233	case PIPE_CAP_ACCELERATED:
		234	return 1;
		235	case PIPE_CAP_VIDEO_MEMORY:
		236	return r300screen->info.vram_size >> 20;
		237	case PIPE_CAP_UMA:
		238	return 0;
		239	}
		240	return 0;
		241	}
		242
		243	static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, enum pipe_shader_cap param)
		244	{
		245	struct r300_screen* r300screen = r300_screen(pscreen);
		246	boolean is_r400 = r300screen->caps.is_r400;
		247	boolean is_r500 = r300screen->caps.is_r500;
		248
		249	switch (shader) {
		250	case PIPE_SHADER_FRAGMENT:
		251	switch (param)
		252	{
		253	case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
		254	return is_r500 \|\| is_r400 ? 512 : 96;
		255	case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
		256	return is_r500 \|\| is_r400 ? 512 : 64;
		257	case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
		258	return is_r500 \|\| is_r400 ? 512 : 32;
		259	case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
		260	return is_r500 ? 511 : 4;
		261	case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
		262	return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
		263	/* Fragment shader limits. */
		264	case PIPE_SHADER_CAP_MAX_INPUTS:
		265	/* 2 colors + 8 texcoords are always supported
		266	* (minus fog and wpos).
		267	*
		268	* R500 has the ability to turn 3rd and 4th color into
		269	* additional texcoords but there is no two-sided color
		270	* selection then. However the facing bit can be used instead. */
		271	return 10;
		272	case PIPE_SHADER_CAP_MAX_OUTPUTS:
		273	return 4;
		274	case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
		275	return (is_r500 ? 256 : 32) * sizeof(float[4]);
		276	case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
		277	return 1;
		278	case PIPE_SHADER_CAP_MAX_TEMPS:
		279	return is_r500 ? 128 : is_r400 ? 64 : 32;
		280	case PIPE_SHADER_CAP_MAX_PREDS:
		281	return 0; /* unused */
		282	case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
		283	case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
		284	return r300screen->caps.num_tex_units;
		285	case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
		286	case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
		287	case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
		288	case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
		289	case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
		290	case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
		291	case PIPE_SHADER_CAP_SUBROUTINES:
		292	case PIPE_SHADER_CAP_INTEGERS:
		293	case PIPE_SHADER_CAP_DOUBLES:
		294	case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
		295	case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
		296	case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
		297	return 0;
		298	case PIPE_SHADER_CAP_PREFERRED_IR:
		299	return PIPE_SHADER_IR_TGSI;
		300	}
		301	break;
		302	case PIPE_SHADER_VERTEX:
		303	switch (param)
		304	{
		305	case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
		306	case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
		307	case PIPE_SHADER_CAP_SUBROUTINES:
		308	return 0;
		309	default:;
		310	}
		311
		312	if (!r300screen->caps.has_tcl) {
		313	return draw_get_shader_param(shader, param);
		314	}
		315
		316	switch (param)
		317	{
		318	case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
		319	case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
		320	return is_r500 ? 1024 : 256;
		321	case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
		322	return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
		323	case PIPE_SHADER_CAP_MAX_INPUTS:
		324	return 16;
		325	case PIPE_SHADER_CAP_MAX_OUTPUTS:
		326	return 10;
		327	case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
		328	return 256 * sizeof(float[4]);
		329	case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
		330	return 1;
		331	case PIPE_SHADER_CAP_MAX_TEMPS:
		332	return 32;
		333	case PIPE_SHADER_CAP_MAX_PREDS:
		334	return 0; /* unused */
		335	case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
		336	return 1;
		337	case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
		338	case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
		339	case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
		340	case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
		341	case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
		342	case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
		343	case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
		344	case PIPE_SHADER_CAP_SUBROUTINES:
		345	case PIPE_SHADER_CAP_INTEGERS:
		346	case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
		347	case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
		348	case PIPE_SHADER_CAP_DOUBLES:
		349	case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
		350	case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
		351	case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
		352	return 0;
		353	case PIPE_SHADER_CAP_PREFERRED_IR:
		354	return PIPE_SHADER_IR_TGSI;
		355	}
		356	break;
		357	}
		358	return 0;
		359	}
		360
		361	static float r300_get_paramf(struct pipe_screen* pscreen,
		362	enum pipe_capf param)
		363	{
		364	struct r300_screen* r300screen = r300_screen(pscreen);
		365
		366	switch (param) {
		367	case PIPE_CAPF_MAX_LINE_WIDTH:
		368	case PIPE_CAPF_MAX_LINE_WIDTH_AA:
		369	case PIPE_CAPF_MAX_POINT_WIDTH:
		370	case PIPE_CAPF_MAX_POINT_WIDTH_AA:
		371	/* The maximum dimensions of the colorbuffer are our practical
		372	* rendering limits. 2048 pixels should be enough for anybody. */
		373	if (r300screen->caps.is_r500) {
		374	return 4096.0f;
		375	} else if (r300screen->caps.is_r400) {
		376	return 4021.0f;
		377	} else {
		378	return 2560.0f;
		379	}
		380	case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
		381	return 16.0f;
		382	case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
		383	return 16.0f;
		384	case PIPE_CAPF_GUARD_BAND_LEFT:
		385	case PIPE_CAPF_GUARD_BAND_TOP:
		386	case PIPE_CAPF_GUARD_BAND_RIGHT:
		387	case PIPE_CAPF_GUARD_BAND_BOTTOM:
		388	return 0.0f;
		389	default:
		390	debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
		391	param);
		392	return 0.0f;
		393	}
		394	}
		395
		396	static int r300_get_video_param(struct pipe_screen *screen,
		397	enum pipe_video_profile profile,
		398	enum pipe_video_entrypoint entrypoint,
		399	enum pipe_video_cap param)
		400	{
		401	switch (param) {
		402	case PIPE_VIDEO_CAP_SUPPORTED:
		403	return vl_profile_supported(screen, profile, entrypoint);
		404	case PIPE_VIDEO_CAP_NPOT_TEXTURES:
		405	return 0;
		406	case PIPE_VIDEO_CAP_MAX_WIDTH:
		407	case PIPE_VIDEO_CAP_MAX_HEIGHT:
		408	return vl_video_buffer_max_size(screen);
		409	case PIPE_VIDEO_CAP_PREFERED_FORMAT:
		410	return PIPE_FORMAT_NV12;
		411	case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
		412	return false;
		413	case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
		414	return false;
		415	case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
		416	return true;
		417	case PIPE_VIDEO_CAP_MAX_LEVEL:
		418	return vl_level_supported(screen, profile);
		419	default:
		420	return 0;
		421	}
		422	}
		423
		424	/**
		425	* Whether the format matches:
		426	* PIPE_FORMAT_?10?10?10?2_UNORM
		427	*/
		428	static INLINE boolean
		429	util_format_is_rgba1010102_variant(const struct util_format_description *desc)
		430	{
		431	static const unsigned size[4] = {10, 10, 10, 2};
		432	unsigned chan;
		433
		434	if (desc->block.width != 1 \|\|
		435	desc->block.height != 1 \|\|
		436	desc->block.bits != 32)
		437	return FALSE;
		438
		439	for (chan = 0; chan < 4; ++chan) {
		440	if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED &&
		441	desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID)
		442	return FALSE;
		443	if (desc->channel[chan].size != size[chan])
		444	return FALSE;
		445	}
		446
		447	return TRUE;
		448	}
		449
		450	static bool r300_is_blending_supported(struct r300_screen *rscreen,
		451	enum pipe_format format)
		452	{
		453	int c;
		454	const struct util_format_description *desc =
		455	util_format_description(format);
		456
		457	if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
		458	return false;
		459
		460	c = util_format_get_first_non_void_channel(format);
		461
		462	/* RGBA16F */
		463	if (rscreen->caps.is_r500 &&
		464	desc->nr_channels == 4 &&
		465	desc->channel[c].size == 16 &&
		466	desc->channel[c].type == UTIL_FORMAT_TYPE_FLOAT)
		467	return true;
		468
		469	if (desc->channel[c].normalized &&
		470	desc->channel[c].type == UTIL_FORMAT_TYPE_UNSIGNED &&
		471	desc->channel[c].size >= 4 &&
		472	desc->channel[c].size <= 10) {
		473	/* RGB10_A2, RGBA8, RGB5_A1, RGBA4, RGB565 */
		474	if (desc->nr_channels >= 3)
		475	return true;
		476
		477	if (format == PIPE_FORMAT_R8G8_UNORM)
		478	return true;
		479
		480	/* R8, I8, L8, A8 */
		481	if (desc->nr_channels == 1)
		482	return true;
		483	}
		484
		485	return false;
		486	}
		487
		488	static boolean r300_is_format_supported(struct pipe_screen* screen,
		489	enum pipe_format format,
		490	enum pipe_texture_target target,
		491	unsigned sample_count,
		492	unsigned usage)
		493	{
		494	uint32_t retval = 0;
		495	boolean drm_2_8_0 = r300_screen(screen)->info.drm_minor >= 8;
		496	boolean is_r500 = r300_screen(screen)->caps.is_r500;
		497	boolean is_r400 = r300_screen(screen)->caps.is_r400;
		498	boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM \|\|
		499	format == PIPE_FORMAT_R10G10B10X2_SNORM \|\|
		500	format == PIPE_FORMAT_B10G10R10A2_UNORM \|\|
		501	format == PIPE_FORMAT_B10G10R10X2_UNORM \|\|
		502	format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
		503	boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM \|\|
		504	format == PIPE_FORMAT_RGTC1_SNORM \|\|
		505	format == PIPE_FORMAT_LATC1_UNORM \|\|
		506	format == PIPE_FORMAT_LATC1_SNORM;
		507	boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM \|\|
		508	format == PIPE_FORMAT_RGTC2_SNORM \|\|
		509	format == PIPE_FORMAT_LATC2_UNORM \|\|
		510	format == PIPE_FORMAT_LATC2_SNORM;
		511	boolean is_x16f_xy16f = format == PIPE_FORMAT_R16_FLOAT \|\|
		512	format == PIPE_FORMAT_R16G16_FLOAT \|\|
		513	format == PIPE_FORMAT_A16_FLOAT \|\|
		514	format == PIPE_FORMAT_L16_FLOAT \|\|
		515	format == PIPE_FORMAT_L16A16_FLOAT \|\|
		516	format == PIPE_FORMAT_R16A16_FLOAT \|\|
		517	format == PIPE_FORMAT_I16_FLOAT;
		518	boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT \|\|
		519	format == PIPE_FORMAT_R16G16_FLOAT \|\|
		520	format == PIPE_FORMAT_R16G16B16_FLOAT \|\|
		521	format == PIPE_FORMAT_R16G16B16A16_FLOAT \|\|
		522	format == PIPE_FORMAT_R16G16B16X16_FLOAT;
		523	const struct util_format_description *desc;
		524
		525	if (!util_format_is_supported(format, usage))
		526	return FALSE;
		527
		528	/* Check multisampling support. */
		529	switch (sample_count) {
		530	case 0:
		531	case 1:
		532	break;
		533	case 2:
		534	case 4:
		535	case 6:
		536	/* We need DRM 2.8.0. */
		537	if (!drm_2_8_0) {
		538	return FALSE;
		539	}
		540	/* No texturing and scanout. */
		541	if (usage & (PIPE_BIND_SAMPLER_VIEW \|
		542	PIPE_BIND_DISPLAY_TARGET \|
		543	PIPE_BIND_SCANOUT)) {
		544	return FALSE;
		545	}
		546
		547	desc = util_format_description(format);
		548
		549	if (is_r500) {
		550	/* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
		551	if (!util_format_is_depth_or_stencil(format) &&
		552	!util_format_is_rgba8_variant(desc) &&
		553	!util_format_is_rgba1010102_variant(desc) &&
		554	format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
		555	format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
		556	return FALSE;
		557	}
		558	} else {
		559	/* Only allow depth/stencil, RGBA8. */
		560	if (!util_format_is_depth_or_stencil(format) &&
		561	!util_format_is_rgba8_variant(desc)) {
		562	return FALSE;
		563	}
		564	}
		565	break;
		566	default:
		567	return FALSE;
		568	}
		569
		570	/* Check sampler format support. */
		571	if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
		572	/* these two are broken for an unknown reason */
		573	format != PIPE_FORMAT_R8G8B8X8_SNORM &&
		574	format != PIPE_FORMAT_R16G16B16X16_SNORM &&
		575	/* ATI1N is r5xx-only. */
		576	(is_r500 \|\| !is_ati1n) &&
		577	/* ATI2N is supported on r4xx-r5xx. */
		578	(is_r400 \|\| is_r500 \|\| !is_ati2n) &&
		579	/* R16F and RG16F texture support was added in as late as DRM 2.8.0 */
		580	(drm_2_8_0 \|\| !is_x16f_xy16f) &&
		581	r300_is_sampler_format_supported(format)) {
		582	retval \|= PIPE_BIND_SAMPLER_VIEW;
		583	}
		584
		585	/* Check colorbuffer format support. */
		586	if ((usage & (PIPE_BIND_RENDER_TARGET \|
		587	PIPE_BIND_DISPLAY_TARGET \|
		588	PIPE_BIND_SCANOUT \|
		589	PIPE_BIND_SHARED \|
		590	PIPE_BIND_BLENDABLE)) &&
		591	/* 2101010 cannot be rendered to on non-r5xx. */
		592	(!is_color2101010 \|\| (is_r500 && drm_2_8_0)) &&
		593	r300_is_colorbuffer_format_supported(format)) {
		594	retval \|= usage &
		595	(PIPE_BIND_RENDER_TARGET \|
		596	PIPE_BIND_DISPLAY_TARGET \|
		597	PIPE_BIND_SCANOUT \|
		598	PIPE_BIND_SHARED);
		599
		600	if (r300_is_blending_supported(r300_screen(screen), format)) {
		601	retval \|= usage & PIPE_BIND_BLENDABLE;
		602	}
		603	}
		604
		605	/* Check depth-stencil format support. */
		606	if (usage & PIPE_BIND_DEPTH_STENCIL &&
		607	r300_is_zs_format_supported(format)) {
		608	retval \|= PIPE_BIND_DEPTH_STENCIL;
		609	}
		610
		611	/* Check vertex buffer format support. */
		612	if (usage & PIPE_BIND_VERTEX_BUFFER) {
		613	if (r300_screen(screen)->caps.has_tcl) {
		614	/* Half float is supported on >= R400. */
		615	if ((is_r400 \|\| is_r500 \|\| !is_half_float) &&
		616	r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
		617	retval \|= PIPE_BIND_VERTEX_BUFFER;
		618	}
		619	} else {
		620	/* SW TCL */
		621	if (!util_format_is_pure_integer(format)) {
		622	retval \|= PIPE_BIND_VERTEX_BUFFER;
		623	}
		624	}
		625	}
		626
		627	/* Transfers are always supported. */
		628	if (usage & PIPE_BIND_TRANSFER_READ)
		629	retval \|= PIPE_BIND_TRANSFER_READ;
		630	if (usage & PIPE_BIND_TRANSFER_WRITE)
		631	retval \|= PIPE_BIND_TRANSFER_WRITE;
		632
		633	return retval == usage;
		634	}
		635
		636	static void r300_destroy_screen(struct pipe_screen* pscreen)
		637	{
		638	struct r300_screen* r300screen = r300_screen(pscreen);
		639	struct radeon_winsys *rws = radeon_winsys(pscreen);
		640
		641	if (rws && !rws->unref(rws))
		642	return;
		643
		644	pipe_mutex_destroy(r300screen->cmask_mutex);
		645
		646	if (rws)
		647	rws->destroy(rws);
		648
		649	FREE(r300screen);
		650	}
		651
		652	static void r300_fence_reference(struct pipe_screen *screen,
		653	struct pipe_fence_handle **ptr,
		654	struct pipe_fence_handle *fence)
		655	{
		656	struct radeon_winsys *rws = r300_screen(screen)->rws;
		657
		658	rws->fence_reference(ptr, fence);
		659	}
		660
		661	static boolean r300_fence_signalled(struct pipe_screen *screen,
		662	struct pipe_fence_handle *fence)
		663	{
		664	struct radeon_winsys *rws = r300_screen(screen)->rws;
		665
		666	return rws->fence_wait(rws, fence, 0);
		667	}
		668
		669	static boolean r300_fence_finish(struct pipe_screen *screen,
		670	struct pipe_fence_handle *fence,
		671	uint64_t timeout)
		672	{
		673	struct radeon_winsys *rws = r300_screen(screen)->rws;
		674
		675	return rws->fence_wait(rws, fence, timeout);
		676	}
		677
		678	struct pipe_screen* r300_screen_create(struct radeon_winsys *rws)
		679	{
		680	struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
		681
		682	if (!r300screen) {
		683	FREE(r300screen);
		684	return NULL;
		685	}
		686
		687	rws->query_info(rws, &r300screen->info);
		688
		689	r300_init_debug(r300screen);
		690	r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps);
		691
		692	if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
		693	r300screen->caps.zmask_ram = 0;
		694	if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
		695	r300screen->caps.hiz_ram = 0;
		696
		697	if (r300screen->info.drm_minor < 8)
		698	r300screen->caps.has_us_format = FALSE;
		699
		700	r300screen->rws = rws;
		701	r300screen->screen.destroy = r300_destroy_screen;
		702	r300screen->screen.get_name = r300_get_name;
		703	r300screen->screen.get_vendor = r300_get_vendor;
		704	r300screen->screen.get_device_vendor = r300_get_device_vendor;
		705	r300screen->screen.get_param = r300_get_param;
		706	r300screen->screen.get_shader_param = r300_get_shader_param;
		707	r300screen->screen.get_paramf = r300_get_paramf;
		708	r300screen->screen.get_video_param = r300_get_video_param;
		709	r300screen->screen.is_format_supported = r300_is_format_supported;
		710	r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
		711	r300screen->screen.context_create = r300_create_context;
		712	r300screen->screen.fence_reference = r300_fence_reference;
		713	r300screen->screen.fence_signalled = r300_fence_signalled;
		714	r300screen->screen.fence_finish = r300_fence_finish;
		715
		716	r300_init_screen_resource_functions(r300screen);
		717
		718	util_format_s3tc_init();
		719	pipe_mutex_init(r300screen->cmask_mutex);
		720
		721	return &r300screen->screen;
		722	}

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(root)/contrib/sdk/sources/Mesa/mesa-10.6.0/src/gallium/drivers/r300/r300_screen.c – Rev 5564