| /************************************************************************** |
| * |
| * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * 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, 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 TUNGSTEN GRAPHICS AND/OR ITS 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_memory.h" |
| #include "util/u_math.h" |
| #include "util/u_cpu_detect.h" |
| #include "util/u_format.h" |
| #include "util/u_format_s3tc.h" |
| #include "pipe/p_defines.h" |
| #include "pipe/p_screen.h" |
| #include "draw/draw_context.h" |
| |
| #include "lp_texture.h" |
| #include "lp_fence.h" |
| #include "lp_jit.h" |
| #include "lp_screen.h" |
| #include "lp_context.h" |
| #include "lp_debug.h" |
| #include "lp_public.h" |
| #include "lp_limits.h" |
| #include "lp_rast.h" |
| |
| #include "state_tracker/sw_winsys.h" |
| |
| #ifdef DEBUG |
| int LP_DEBUG = 0; |
| |
| static const struct debug_named_value lp_debug_flags[] = { |
| { "pipe", DEBUG_PIPE, NULL }, |
| { "tgsi", DEBUG_TGSI, NULL }, |
| { "tex", DEBUG_TEX, NULL }, |
| { "setup", DEBUG_SETUP, NULL }, |
| { "rast", DEBUG_RAST, NULL }, |
| { "query", DEBUG_QUERY, NULL }, |
| { "screen", DEBUG_SCREEN, NULL }, |
| { "show_tiles", DEBUG_SHOW_TILES, NULL }, |
| { "show_subtiles", DEBUG_SHOW_SUBTILES, NULL }, |
| { "counters", DEBUG_COUNTERS, NULL }, |
| { "scene", DEBUG_SCENE, NULL }, |
| { "fence", DEBUG_FENCE, NULL }, |
| { "mem", DEBUG_MEM, NULL }, |
| { "fs", DEBUG_FS, NULL }, |
| DEBUG_NAMED_VALUE_END |
| }; |
| #endif |
| |
| int LP_PERF = 0; |
| static const struct debug_named_value lp_perf_flags[] = { |
| { "texmem", PERF_TEX_MEM, NULL }, |
| { "no_mipmap", PERF_NO_MIPMAPS, NULL }, |
| { "no_linear", PERF_NO_LINEAR, NULL }, |
| { "no_mip_linear", PERF_NO_MIP_LINEAR, NULL }, |
| { "no_tex", PERF_NO_TEX, NULL }, |
| { "no_blend", PERF_NO_BLEND, NULL }, |
| { "no_depth", PERF_NO_DEPTH, NULL }, |
| { "no_alphatest", PERF_NO_ALPHATEST, NULL }, |
| DEBUG_NAMED_VALUE_END |
| }; |
| |
| |
| static const char * |
| llvmpipe_get_vendor(struct pipe_screen *screen) |
| { |
| return "VMware, Inc."; |
| } |
| |
| |
| static const char * |
| llvmpipe_get_name(struct pipe_screen *screen) |
| { |
| return "llvmpipe"; |
| } |
| |
| |
| static int |
| llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param) |
| { |
| switch (param) { |
| case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: |
| return PIPE_MAX_SAMPLERS; |
| case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: |
| /* At this time, the draw module and llvmpipe driver only |
| * support vertex shader texture lookups when LLVM is enabled in |
| * the draw module. |
| */ |
| if (debug_get_bool_option("DRAW_USE_LLVM", TRUE)) |
| return PIPE_MAX_VERTEX_SAMPLERS; |
| else |
| return 0; |
| case PIPE_CAP_MAX_COMBINED_SAMPLERS: |
| return PIPE_MAX_SAMPLERS + PIPE_MAX_VERTEX_SAMPLERS; |
| case PIPE_CAP_NPOT_TEXTURES: |
| return 1; |
| case PIPE_CAP_TWO_SIDED_STENCIL: |
| return 1; |
| case PIPE_CAP_GLSL: |
| return 1; |
| case PIPE_CAP_SM3: |
| return 1; |
| case PIPE_CAP_ANISOTROPIC_FILTER: |
| return 0; |
| case PIPE_CAP_POINT_SPRITE: |
| return 1; |
| case PIPE_CAP_MAX_RENDER_TARGETS: |
| return PIPE_MAX_COLOR_BUFS; |
| case PIPE_CAP_OCCLUSION_QUERY: |
| return 1; |
| case PIPE_CAP_TIMER_QUERY: |
| return 0; |
| case PIPE_CAP_TEXTURE_MIRROR_CLAMP: |
| return 1; |
| case PIPE_CAP_TEXTURE_MIRROR_REPEAT: |
| return 1; |
| case PIPE_CAP_TEXTURE_SHADOW_MAP: |
| return 1; |
| case PIPE_CAP_TEXTURE_SWIZZLE: |
| return 1; |
| case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: |
| return LP_MAX_TEXTURE_2D_LEVELS; |
| case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: |
| return LP_MAX_TEXTURE_3D_LEVELS; |
| case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: |
| return LP_MAX_TEXTURE_2D_LEVELS; |
| case PIPE_CAP_BLEND_EQUATION_SEPARATE: |
| return 1; |
| case PIPE_CAP_INDEP_BLEND_ENABLE: |
| return 1; |
| case PIPE_CAP_INDEP_BLEND_FUNC: |
| return 1; |
| case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: |
| case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: |
| return 1; |
| case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: |
| case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: |
| return 0; |
| case PIPE_CAP_PRIMITIVE_RESTART: |
| return 1; |
| case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE: |
| return 1; |
| case PIPE_CAP_DEPTH_CLAMP: |
| return 0; |
| case PIPE_CAP_TGSI_INSTANCEID: |
| case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR: |
| case PIPE_CAP_MIXED_COLORBUFFER_FORMATS: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| static int |
| llvmpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param) |
| { |
| switch(shader) |
| { |
| case PIPE_SHADER_FRAGMENT: |
| return tgsi_exec_get_shader_param(param); |
| case PIPE_SHADER_VERTEX: |
| case PIPE_SHADER_GEOMETRY: |
| return draw_get_shader_param(shader, param); |
| default: |
| return 0; |
| } |
| } |
| |
| static float |
| llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_cap param) |
| { |
| switch (param) { |
| case PIPE_CAP_MAX_LINE_WIDTH: |
| /* fall-through */ |
| case PIPE_CAP_MAX_LINE_WIDTH_AA: |
| return 255.0; /* arbitrary */ |
| case PIPE_CAP_MAX_POINT_WIDTH: |
| /* fall-through */ |
| case PIPE_CAP_MAX_POINT_WIDTH_AA: |
| return 255.0; /* arbitrary */ |
| case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: |
| return 16.0; /* not actually signficant at this time */ |
| case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: |
| return 16.0; /* arbitrary */ |
| case PIPE_CAP_GUARD_BAND_LEFT: |
| case PIPE_CAP_GUARD_BAND_TOP: |
| case PIPE_CAP_GUARD_BAND_RIGHT: |
| case PIPE_CAP_GUARD_BAND_BOTTOM: |
| return 0.0; |
| default: |
| assert(0); |
| return 0; |
| } |
| } |
| |
| |
| /** |
| * Query format support for creating a texture, drawing surface, etc. |
| * \param format the format to test |
| * \param type one of PIPE_TEXTURE, PIPE_SURFACE |
| */ |
| static boolean |
| llvmpipe_is_format_supported( struct pipe_screen *_screen, |
| enum pipe_format format, |
| enum pipe_texture_target target, |
| unsigned sample_count, |
| unsigned bind) |
| { |
| struct llvmpipe_screen *screen = llvmpipe_screen(_screen); |
| struct sw_winsys *winsys = screen->winsys; |
| const struct util_format_description *format_desc; |
| |
| format_desc = util_format_description(format); |
| if (!format_desc) |
| return FALSE; |
| |
| assert(target == PIPE_BUFFER || |
| target == PIPE_TEXTURE_1D || |
| target == PIPE_TEXTURE_2D || |
| target == PIPE_TEXTURE_RECT || |
| target == PIPE_TEXTURE_3D || |
| target == PIPE_TEXTURE_CUBE); |
| |
| if (sample_count > 1) |
| return FALSE; |
| |
| if (bind & PIPE_BIND_RENDER_TARGET) { |
| if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS) |
| return FALSE; |
| |
| if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) |
| return FALSE; |
| |
| if (format_desc->block.width != 1 || |
| format_desc->block.height != 1) |
| return FALSE; |
| } |
| |
| if (bind & PIPE_BIND_DISPLAY_TARGET) { |
| if(!winsys->is_displaytarget_format_supported(winsys, bind, format)) |
| return FALSE; |
| } |
| |
| if (bind & PIPE_BIND_DEPTH_STENCIL) { |
| if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) |
| return FALSE; |
| |
| if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS) |
| return FALSE; |
| |
| /* FIXME: Temporary restriction. See lp_state_fs.c. */ |
| if (format_desc->block.bits != 32) |
| return FALSE; |
| } |
| |
| if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) { |
| return util_format_s3tc_enabled; |
| } |
| |
| /* u_format doesn't support RGTC yet */ |
| if (format_desc->layout == UTIL_FORMAT_LAYOUT_RGTC) { |
| return FALSE; |
| } |
| |
| /* |
| * Everything else should be supported by u_format. |
| */ |
| return TRUE; |
| } |
| |
| |
| |
| |
| static void |
| llvmpipe_flush_frontbuffer(struct pipe_screen *_screen, |
| struct pipe_resource *resource, |
| unsigned level, unsigned layer, |
| void *context_private) |
| { |
| struct llvmpipe_screen *screen = llvmpipe_screen(_screen); |
| struct sw_winsys *winsys = screen->winsys; |
| struct llvmpipe_resource *texture = llvmpipe_resource(resource); |
| |
| assert(texture->dt); |
| if (texture->dt) |
| winsys->displaytarget_display(winsys, texture->dt, context_private); |
| } |
| |
| |
| static void |
| llvmpipe_destroy_screen( struct pipe_screen *_screen ) |
| { |
| struct llvmpipe_screen *screen = llvmpipe_screen(_screen); |
| struct sw_winsys *winsys = screen->winsys; |
| |
| if (screen->rast) |
| lp_rast_destroy(screen->rast); |
| |
| lp_jit_screen_cleanup(screen); |
| |
| if(winsys->destroy) |
| winsys->destroy(winsys); |
| |
| pipe_mutex_destroy(screen->rast_mutex); |
| |
| FREE(screen); |
| } |
| |
| |
| |
| |
| /** |
| * Fence reference counting. |
| */ |
| static void |
| llvmpipe_fence_reference(struct pipe_screen *screen, |
| struct pipe_fence_handle **ptr, |
| struct pipe_fence_handle *fence) |
| { |
| struct lp_fence **old = (struct lp_fence **) ptr; |
| struct lp_fence *f = (struct lp_fence *) fence; |
| |
| lp_fence_reference(old, f); |
| } |
| |
| |
| /** |
| * Has the fence been executed/finished? |
| */ |
| static boolean |
| llvmpipe_fence_signalled(struct pipe_screen *screen, |
| struct pipe_fence_handle *fence) |
| { |
| struct lp_fence *f = (struct lp_fence *) fence; |
| return lp_fence_signalled(f); |
| } |
| |
| |
| /** |
| * Wait for the fence to finish. |
| */ |
| static boolean |
| llvmpipe_fence_finish(struct pipe_screen *screen, |
| struct pipe_fence_handle *fence_handle, |
| uint64_t timeout) |
| { |
| struct lp_fence *f = (struct lp_fence *) fence_handle; |
| |
| lp_fence_wait(f); |
| return TRUE; |
| } |
| |
| |
| |
| /** |
| * Create a new pipe_screen object |
| * Note: we're not presently subclassing pipe_screen (no llvmpipe_screen). |
| */ |
| struct pipe_screen * |
| llvmpipe_create_screen(struct sw_winsys *winsys) |
| { |
| struct llvmpipe_screen *screen; |
| |
| #ifdef PIPE_ARCH_X86 |
| /* require SSE2 due to LLVM PR6960. */ |
| util_cpu_detect(); |
| if (!util_cpu_caps.has_sse2) |
| return NULL; |
| #endif |
| |
| screen = CALLOC_STRUCT(llvmpipe_screen); |
| |
| #ifdef DEBUG |
| LP_DEBUG = debug_get_flags_option("LP_DEBUG", lp_debug_flags, 0 ); |
| #endif |
| |
| LP_PERF = debug_get_flags_option("LP_PERF", lp_perf_flags, 0 ); |
| |
| if (!screen) |
| return NULL; |
| |
| screen->winsys = winsys; |
| |
| screen->base.destroy = llvmpipe_destroy_screen; |
| |
| screen->base.get_name = llvmpipe_get_name; |
| screen->base.get_vendor = llvmpipe_get_vendor; |
| screen->base.get_param = llvmpipe_get_param; |
| screen->base.get_shader_param = llvmpipe_get_shader_param; |
| screen->base.get_paramf = llvmpipe_get_paramf; |
| screen->base.is_format_supported = llvmpipe_is_format_supported; |
| |
| screen->base.context_create = llvmpipe_create_context; |
| screen->base.flush_frontbuffer = llvmpipe_flush_frontbuffer; |
| screen->base.fence_reference = llvmpipe_fence_reference; |
| screen->base.fence_signalled = llvmpipe_fence_signalled; |
| screen->base.fence_finish = llvmpipe_fence_finish; |
| |
| llvmpipe_init_screen_resource_funcs(&screen->base); |
| |
| lp_jit_screen_init(screen); |
| |
| screen->num_threads = util_cpu_caps.nr_cpus > 1 ? util_cpu_caps.nr_cpus : 0; |
| #ifdef PIPE_SUBSYSTEM_EMBEDDED |
| screen->num_threads = 0; |
| #endif |
| screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads); |
| screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS); |
| |
| screen->rast = lp_rast_create(screen->num_threads); |
| if (!screen->rast) { |
| lp_jit_screen_cleanup(screen); |
| FREE(screen); |
| return NULL; |
| } |
| pipe_mutex_init(screen->rast_mutex); |
| |
| util_format_s3tc_init(); |
| |
| return &screen->base; |
| } |