diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_screen.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_screen.c | 431 |
1 files changed, 431 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c new file mode 100644 index 0000000000..8f7c96b829 --- /dev/null +++ b/src/gallium/drivers/r300/r300_screen.c @@ -0,0 +1,431 @@ +/* + * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> + * Copyright 2010 Marek Olšák <maraeo@gmail.com> + * + * 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 + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, 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 (including the next + * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL + * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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. */ + +#include "util/u_format.h" +#include "util/u_format_s3tc.h" +#include "util/u_memory.h" + +#include "r300_context.h" +#include "r300_texture.h" +#include "r300_screen_buffer.h" +#include "r300_state_inlines.h" +#include "r300_winsys.h" + +/* Return the identifier behind whom the brave coders responsible for this + * amalgamation of code, sweat, and duct tape, routinely obscure their names. + * + * ...I should have just put "Corbin Simpson", but I'm not that cool. + * + * (Or egotistical. Yet.) */ +static const char* r300_get_vendor(struct pipe_screen* pscreen) +{ + return "X.Org R300 Project"; +} + +static const char* chip_families[] = { + "R300", + "R350", + "R360", + "RV350", + "RV370", + "RV380", + "R420", + "R423", + "R430", + "R480", + "R481", + "RV410", + "RS400", + "RC410", + "RS480", + "RS482", + "RS600", + "RS690", + "RS740", + "RV515", + "R520", + "RV530", + "R580", + "RV560", + "RV570" +}; + +static const char* r300_get_name(struct pipe_screen* pscreen) +{ + struct r300_screen* r300screen = r300_screen(pscreen); + + return chip_families[r300screen->caps.family]; +} + +static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param) +{ + struct r300_screen* r300screen = r300_screen(pscreen); + boolean is_r400 = r300screen->caps.is_r400; + boolean is_r500 = r300screen->caps.is_r500; + + /* XXX extended shader capabilities of r400 unimplemented */ + is_r400 = FALSE; + + switch (param) { + /* Supported features (boolean caps). */ + case PIPE_CAP_NPOT_TEXTURES: + case PIPE_CAP_TWO_SIDED_STENCIL: + case PIPE_CAP_GLSL: + /* I'll be frank. This is a lie. + * + * We don't truly support GLSL on any of this driver's chipsets. + * To be fair, no chipset supports the full GLSL specification + * to the best of our knowledge, but some of the less esoteric + * features are still missing here. + * + * Rather than cripple ourselves intentionally, I'm going to set + * this flag, and as Gallium's interface continues to change, I + * hope that this single monolithic GLSL enable can slowly get + * split down into many different pieces and the state tracker + * will handle fallbacks transparently, like it should. + * + * ~ C. + */ + case PIPE_CAP_ANISOTROPIC_FILTER: + case PIPE_CAP_POINT_SPRITE: + case PIPE_CAP_OCCLUSION_QUERY: + case PIPE_CAP_TEXTURE_SHADOW_MAP: + case PIPE_CAP_TEXTURE_MIRROR_CLAMP: + case PIPE_CAP_TEXTURE_MIRROR_REPEAT: + case PIPE_CAP_BLEND_EQUATION_SEPARATE: + case PIPE_CAP_TEXTURE_SWIZZLE: + return 1; + + /* Unsupported features (boolean caps). */ + case PIPE_CAP_TIMER_QUERY: + case PIPE_CAP_DUAL_SOURCE_BLEND: + case PIPE_CAP_TGSI_CONT_SUPPORTED: + case PIPE_CAP_INDEP_BLEND_ENABLE: + case PIPE_CAP_INDEP_BLEND_FUNC: + return 0; + + /* Texturing. */ + case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: + case PIPE_CAP_MAX_COMBINED_SAMPLERS: + return r300screen->caps.num_tex_units; + case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: + return 0; + case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: + case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: + case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: + /* 13 == 4096, 12 == 2048 */ + return is_r500 ? 13 : 12; + + /* Render targets. */ + case PIPE_CAP_MAX_RENDER_TARGETS: + return 4; + + /* General shader limits and features. */ + case PIPE_CAP_SM3: + return is_r500 ? 1 : 0; + case PIPE_CAP_MAX_CONST_BUFFERS: + return 1; + case PIPE_CAP_MAX_CONST_BUFFER_SIZE: + return 256; + + case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE: + return 1; + + /* Fragment coordinate conventions. */ + case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: + case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: + return 1; + case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: + case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: + return 0; + + /* Fragment shader limits. */ + case PIPE_CAP_MAX_FS_INSTRUCTIONS: + return is_r500 || is_r400 ? 512 : 96; + case PIPE_CAP_MAX_FS_ALU_INSTRUCTIONS: + return is_r500 || is_r400 ? 512 : 64; + case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS: + return is_r500 || is_r400 ? 512 : 32; + case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS: + return is_r500 ? 511 : 4; + case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH: + return is_r500 ? 64 : 0; /* Actually unlimited on r500. */ + case PIPE_CAP_MAX_FS_INPUTS: + /* 2 colors + 8 texcoords are always supported + * (minus fog and wpos). + * + * R500 has the ability to turn 3rd and 4th color into + * additional texcoords but there is no two-sided color + * selection then. However the facing bit can be used instead. */ + return 10; + case PIPE_CAP_MAX_FS_CONSTS: + return is_r500 ? 256 : 32; + case PIPE_CAP_MAX_FS_TEMPS: + return is_r500 ? 128 : is_r400 ? 64 : 32; + case PIPE_CAP_MAX_FS_ADDRS: + return 0; + case PIPE_CAP_MAX_FS_PREDS: + return is_r500 ? 1 : 0; + + /* Vertex shader limits. */ + case PIPE_CAP_MAX_VS_INSTRUCTIONS: + case PIPE_CAP_MAX_VS_ALU_INSTRUCTIONS: + return is_r500 ? 1024 : 256; + case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS: + case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS: + return 0; + case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH: + return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */ + case PIPE_CAP_MAX_VS_INPUTS: + return 16; + case PIPE_CAP_MAX_VS_CONSTS: + return 256; + case PIPE_CAP_MAX_VS_TEMPS: + return 32; + case PIPE_CAP_MAX_VS_ADDRS: + return 1; /* XXX guessed */ + case PIPE_CAP_MAX_VS_PREDS: + return is_r500 ? 4 : 0; /* XXX guessed. */ + + default: + fprintf(stderr, "r300: Implementation error: Bad param %d\n", + param); + return 0; + } +} + +static float r300_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param) +{ + struct r300_screen* r300screen = r300_screen(pscreen); + + switch (param) { + case PIPE_CAP_MAX_LINE_WIDTH: + case PIPE_CAP_MAX_LINE_WIDTH_AA: + case PIPE_CAP_MAX_POINT_WIDTH: + case PIPE_CAP_MAX_POINT_WIDTH_AA: + /* The maximum dimensions of the colorbuffer are our practical + * rendering limits. 2048 pixels should be enough for anybody. */ + if (r300screen->caps.is_r500) { + return 4096.0f; + } else if (r300screen->caps.is_r400) { + return 4021.0f; + } else { + return 2560.0f; + } + case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: + return 16.0f; + case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: + return 16.0f; + default: + fprintf(stderr, "r300: Implementation error: Bad paramf %d\n", + param); + return 0.0f; + } +} + +static boolean r300_is_format_supported(struct pipe_screen* screen, + enum pipe_format format, + enum pipe_texture_target target, + unsigned sample_count, + unsigned usage, + unsigned geom_flags) +{ + uint32_t retval = 0; + boolean is_r500 = r300_screen(screen)->caps.is_r500; + boolean is_r400 = r300_screen(screen)->caps.is_r400; + boolean is_rv350 = r300_screen(screen)->caps.is_rv350; + boolean is_z24 = format == PIPE_FORMAT_X8Z24_UNORM || + format == PIPE_FORMAT_S8_USCALED_Z24_UNORM; + boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM || + format == PIPE_FORMAT_R10G10B10X2_SNORM || + format == PIPE_FORMAT_B10G10R10A2_UNORM || + format == PIPE_FORMAT_R10SG10SB10SA2U_NORM; + boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM || + format == PIPE_FORMAT_RGTC1_SNORM; + boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM || + format == PIPE_FORMAT_RGTC2_SNORM; + boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT || + format == PIPE_FORMAT_R16G16_FLOAT || + format == PIPE_FORMAT_R16G16B16_FLOAT || + format == PIPE_FORMAT_R16G16B16A16_FLOAT; + + if (target >= PIPE_MAX_TEXTURE_TYPES) { + fprintf(stderr, "r300: Implementation error: Received bogus texture " + "target %d in %s\n", target, __FUNCTION__); + return FALSE; + } + + switch (sample_count) { + case 0: + case 1: + break; + case 2: + case 3: + case 4: + case 6: + if (usage != PIPE_BIND_RENDER_TARGET || + !util_format_is_rgba8_variant( + util_format_description(format))) { + return FALSE; + } + break; + default: + return FALSE; + } + + /* Check sampler format support. */ + if ((usage & PIPE_BIND_SAMPLER_VIEW) && + /* Z24 cannot be sampled from on non-r5xx. */ + (is_r500 || !is_z24) && + /* ATI1N is r5xx-only. */ + (is_r500 || !is_ati1n) && + /* ATI2N is supported on r4xx-r5xx. */ + (is_r400 || is_r500 || !is_ati2n) && + r300_is_sampler_format_supported(format)) { + retval |= PIPE_BIND_SAMPLER_VIEW; + } + + /* Check colorbuffer format support. */ + if ((usage & (PIPE_BIND_RENDER_TARGET | + PIPE_BIND_DISPLAY_TARGET | + PIPE_BIND_SCANOUT | + PIPE_BIND_SHARED)) && + /* 2101010 cannot be rendered to on non-r5xx. */ + (is_r500 || !is_color2101010) && + r300_is_colorbuffer_format_supported(format)) { + retval |= usage & + (PIPE_BIND_RENDER_TARGET | + PIPE_BIND_DISPLAY_TARGET | + PIPE_BIND_SCANOUT | + PIPE_BIND_SHARED); + } + + /* Check depth-stencil format support. */ + if (usage & PIPE_BIND_DEPTH_STENCIL && + r300_is_zs_format_supported(format)) { + retval |= PIPE_BIND_DEPTH_STENCIL; + } + + /* Check vertex buffer format support. */ + if (usage & PIPE_BIND_VERTEX_BUFFER && + /* Half float is supported on >= RV350. */ + (is_rv350 || !is_half_float) && + r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) { + retval |= PIPE_BIND_VERTEX_BUFFER; + } + + /* Transfers are always supported. */ + if (usage & PIPE_BIND_TRANSFER_READ) + retval |= PIPE_BIND_TRANSFER_READ; + if (usage & PIPE_BIND_TRANSFER_WRITE) + retval |= PIPE_BIND_TRANSFER_WRITE; + + return retval == usage; +} + +static void r300_destroy_screen(struct pipe_screen* pscreen) +{ + struct r300_screen* r300screen = r300_screen(pscreen); + struct r300_winsys_screen *rws = r300_winsys_screen(pscreen); + + if (rws) + rws->destroy(rws); + + FREE(r300screen); +} + +static void r300_fence_reference(struct pipe_screen *screen, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *fence) +{ + struct r300_fence **oldf = (struct r300_fence**)ptr; + struct r300_fence *newf = (struct r300_fence*)fence; + + if (pipe_reference(&(*oldf)->reference, &newf->reference)) + FREE(*oldf); + + *ptr = fence; +} + +static int r300_fence_signalled(struct pipe_screen *screen, + struct pipe_fence_handle *fence, + unsigned flags) +{ + struct r300_fence *rfence = (struct r300_fence*)fence; + + return rfence->signalled ? 0 : 1; /* 0 == success */ +} + +static int r300_fence_finish(struct pipe_screen *screen, + struct pipe_fence_handle *fence, + unsigned flags) +{ + struct r300_fence *rfence = (struct r300_fence*)fence; + + r300_finish(rfence->ctx); + rfence->signalled = TRUE; + return 0; /* 0 == success */ +} + +struct pipe_screen* r300_create_screen(struct r300_winsys_screen *rws) +{ + struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen); + + if (!r300screen) { + FREE(r300screen); + return NULL; + } + + r300screen->caps.pci_id = rws->get_value(rws, R300_VID_PCI_ID); + r300screen->caps.num_frag_pipes = rws->get_value(rws, R300_VID_GB_PIPES); + r300screen->caps.num_z_pipes = rws->get_value(rws, R300_VID_Z_PIPES); + + r300_init_debug(r300screen); + r300_parse_chipset(&r300screen->caps); + + r300screen->rws = rws; + r300screen->screen.winsys = (struct pipe_winsys*)rws; + r300screen->screen.destroy = r300_destroy_screen; + r300screen->screen.get_name = r300_get_name; + r300screen->screen.get_vendor = r300_get_vendor; + r300screen->screen.get_param = r300_get_param; + r300screen->screen.get_paramf = r300_get_paramf; + r300screen->screen.is_format_supported = r300_is_format_supported; + r300screen->screen.context_create = r300_create_context; + + r300screen->screen.fence_reference = r300_fence_reference; + r300screen->screen.fence_signalled = r300_fence_signalled; + r300screen->screen.fence_finish = r300_fence_finish; + + r300_init_screen_resource_functions(r300screen); + + util_format_s3tc_init(); + + return &r300screen->screen; +} + +struct r300_winsys_screen * +r300_winsys_screen(struct pipe_screen *screen) +{ + return r300_screen(screen)->rws; +} |