r300_screen.c revision 3ca933623cf0fd3b025ab7d1b37d3fd01c854807
1/* 2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> 3 * Copyright 2010 Marek Olšák <maraeo@gmail.com> 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_memory.h" 26#include "util/u_simple_screen.h" 27 28#include "r300_context.h" 29#include "r300_texture.h" 30#include "r300_transfer.h" 31 32#include "radeon_winsys.h" 33#include "r300_winsys.h" 34 35/* Return the identifier behind whom the brave coders responsible for this 36 * amalgamation of code, sweat, and duct tape, routinely obscure their names. 37 * 38 * ...I should have just put "Corbin Simpson", but I'm not that cool. 39 * 40 * (Or egotistical. Yet.) */ 41static const char* r300_get_vendor(struct pipe_screen* pscreen) 42{ 43 return "X.Org R300 Project"; 44} 45 46static const char* chip_families[] = { 47 "R300", 48 "R350", 49 "R360", 50 "RV350", 51 "RV370", 52 "RV380", 53 "R420", 54 "R423", 55 "R430", 56 "R480", 57 "R481", 58 "RV410", 59 "RS400", 60 "RC410", 61 "RS480", 62 "RS482", 63 "RS600", 64 "RS690", 65 "RS740", 66 "RV515", 67 "R520", 68 "RV530", 69 "R580", 70 "RV560", 71 "RV570" 72}; 73 74static const char* r300_get_name(struct pipe_screen* pscreen) 75{ 76 struct r300_screen* r300screen = r300_screen(pscreen); 77 78 return chip_families[r300screen->caps->family]; 79} 80 81static int r300_get_param(struct pipe_screen* pscreen, int param) 82{ 83 struct r300_screen* r300screen = r300_screen(pscreen); 84 85 switch (param) { 86 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: 87 case PIPE_CAP_MAX_COMBINED_SAMPLERS: 88 /* XXX I'm told this goes up to 16 */ 89 return 8; 90 case PIPE_CAP_NPOT_TEXTURES: 91 /* XXX enable now to get GL2.1 API, 92 * figure out later how to emulate this */ 93 return 1; 94 case PIPE_CAP_TWO_SIDED_STENCIL: 95 if (r300screen->caps->is_r500) { 96 return 1; 97 } else { 98 return 0; 99 } 100 case PIPE_CAP_GLSL: 101 /* I'll be frank. This is a lie. 102 * 103 * We don't truly support GLSL on any of this driver's chipsets. 104 * To be fair, no chipset supports the full GLSL specification 105 * to the best of our knowledge, but some of the less esoteric 106 * features are still missing here. 107 * 108 * Rather than cripple ourselves intentionally, I'm going to set 109 * this flag, and as Gallium's interface continues to change, I 110 * hope that this single monolithic GLSL enable can slowly get 111 * split down into many different pieces and the state tracker 112 * will handle fallbacks transparently, like it should. 113 * 114 * ~ C. 115 */ 116 return 1; 117 case PIPE_CAP_DUAL_SOURCE_BLEND: 118 return 0; 119 case PIPE_CAP_ANISOTROPIC_FILTER: 120 return 1; 121 case PIPE_CAP_POINT_SPRITE: 122 return 1; 123 case PIPE_CAP_MAX_RENDER_TARGETS: 124 return 4; 125 case PIPE_CAP_OCCLUSION_QUERY: 126 return 1; 127 case PIPE_CAP_TEXTURE_SHADOW_MAP: 128 return 1; 129 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: 130 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: 131 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: 132 if (r300screen->caps->is_r500) { 133 /* 13 == 4096 */ 134 return 13; 135 } else { 136 /* 12 == 2048 */ 137 return 12; 138 } 139 case PIPE_CAP_TEXTURE_MIRROR_CLAMP: 140 return 1; 141 case PIPE_CAP_TEXTURE_MIRROR_REPEAT: 142 return 1; 143 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: 144 return 0; 145 case PIPE_CAP_TGSI_CONT_SUPPORTED: 146 return 0; 147 case PIPE_CAP_BLEND_EQUATION_SEPARATE: 148 return 1; 149 case PIPE_CAP_SM3: 150 if (r300screen->caps->is_r500) { 151 return 1; 152 } else { 153 return 0; 154 } 155 case PIPE_CAP_MAX_CONST_BUFFERS: 156 return 1; 157 case PIPE_CAP_MAX_CONST_BUFFER_SIZE: 158 return 256; 159 case PIPE_CAP_INDEP_BLEND_ENABLE: 160 return 0; 161 case PIPE_CAP_INDEP_BLEND_FUNC: 162 return 0; 163 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: 164 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: 165 return 1; 166 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: 167 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: 168 return 0; 169 default: 170 debug_printf("r300: Implementation error: Bad param %d\n", 171 param); 172 return 0; 173 } 174} 175 176static float r300_get_paramf(struct pipe_screen* pscreen, int param) 177{ 178 struct r300_screen* r300screen = r300_screen(pscreen); 179 180 switch (param) { 181 case PIPE_CAP_MAX_LINE_WIDTH: 182 case PIPE_CAP_MAX_LINE_WIDTH_AA: 183 case PIPE_CAP_MAX_POINT_WIDTH: 184 case PIPE_CAP_MAX_POINT_WIDTH_AA: 185 /* The maximum dimensions of the colorbuffer are our practical 186 * rendering limits. 2048 pixels should be enough for anybody. */ 187 if (r300screen->caps->is_r500) { 188 return 4096.0f; 189 } else if (r300screen->caps->is_r400) { 190 return 4021.0f; 191 } else { 192 return 2560.0f; 193 } 194 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: 195 return 16.0f; 196 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: 197 return 16.0f; 198 default: 199 debug_printf("r300: Implementation error: Bad paramf %d\n", 200 param); 201 return 0.0f; 202 } 203} 204 205static boolean r300_is_format_supported(struct pipe_screen* screen, 206 enum pipe_format format, 207 enum pipe_texture_target target, 208 unsigned usage, 209 unsigned geom_flags) 210{ 211 uint32_t retval = 0; 212 boolean is_r500 = r300_screen(screen)->caps->is_r500; 213 boolean is_z24 = format == PIPE_FORMAT_X8Z24_UNORM || 214 format == PIPE_FORMAT_S8Z24_UNORM; 215 boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM; 216 217 if (target >= PIPE_MAX_TEXTURE_TYPES) { 218 debug_printf("r300: Implementation error: Received bogus texture " 219 "target %d in %s\n", target, __FUNCTION__); 220 return FALSE; 221 } 222 223 /* Check sampler format support. */ 224 if ((usage & PIPE_TEXTURE_USAGE_SAMPLER) && 225 /* Z24 cannot be sampled from on non-r5xx. */ 226 (is_r500 || !is_z24) && 227 r300_is_sampler_format_supported(format)) { 228 retval |= PIPE_TEXTURE_USAGE_SAMPLER; 229 } 230 231 /* Check colorbuffer format support. */ 232 if ((usage & (PIPE_TEXTURE_USAGE_RENDER_TARGET | 233 PIPE_TEXTURE_USAGE_DISPLAY_TARGET | 234 PIPE_TEXTURE_USAGE_SCANOUT | 235 PIPE_TEXTURE_USAGE_SHARED)) && 236 /* 2101010 cannot be rendered to on non-r5xx. */ 237 (is_r500 || !is_color2101010) && 238 r300_is_colorbuffer_format_supported(format)) { 239 retval |= usage & 240 (PIPE_TEXTURE_USAGE_RENDER_TARGET | 241 PIPE_TEXTURE_USAGE_DISPLAY_TARGET | 242 PIPE_TEXTURE_USAGE_SCANOUT | 243 PIPE_TEXTURE_USAGE_SHARED); 244 } 245 246 /* Check depth-stencil format support. */ 247 if (usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL && 248 r300_is_zs_format_supported(format)) { 249 retval |= PIPE_TEXTURE_USAGE_DEPTH_STENCIL; 250 } 251 252 return retval == usage; 253} 254 255static void r300_destroy_screen(struct pipe_screen* pscreen) 256{ 257 struct r300_screen* r300screen = r300_screen(pscreen); 258 259 FREE(r300screen->caps); 260 FREE(r300screen); 261} 262 263struct pipe_screen* r300_create_screen(struct radeon_winsys* radeon_winsys) 264{ 265 struct r300_screen* r300screen = CALLOC_STRUCT(r300_screen); 266 struct r300_capabilities* caps = CALLOC_STRUCT(r300_capabilities); 267 268 if (!r300screen || !caps) { 269 FREE(r300screen); 270 FREE(caps); 271 return NULL; 272 } 273 274 caps->pci_id = radeon_winsys->pci_id; 275 caps->num_frag_pipes = radeon_winsys->gb_pipes; 276 caps->num_z_pipes = radeon_winsys->z_pipes; 277 278 r300_init_debug(r300screen); 279 r300_parse_chipset(caps); 280 281 r300screen->caps = caps; 282 r300screen->radeon_winsys = radeon_winsys; 283 r300screen->screen.winsys = (struct pipe_winsys*)radeon_winsys; 284 r300screen->screen.destroy = r300_destroy_screen; 285 r300screen->screen.get_name = r300_get_name; 286 r300screen->screen.get_vendor = r300_get_vendor; 287 r300screen->screen.get_param = r300_get_param; 288 r300screen->screen.get_paramf = r300_get_paramf; 289 r300screen->screen.is_format_supported = r300_is_format_supported; 290 r300screen->screen.context_create = r300_create_context; 291 292 r300_init_screen_texture_functions(&r300screen->screen); 293 r300_init_screen_transfer_functions(&r300screen->screen); 294 u_simple_screen_init(&r300screen->screen); 295 296 return &r300screen->screen; 297} 298 299