/************************************************************************** * * 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 "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 "state_tracker/sw_winsys.h" #ifdef DEBUG int LP_DEBUG = 0; static const struct debug_named_value lp_debug_flags[] = { { "pipe", DEBUG_PIPE }, { "tgsi", DEBUG_TGSI }, { "tex", DEBUG_TEX }, { "asm", DEBUG_ASM }, { "setup", DEBUG_SETUP }, { "rast", DEBUG_RAST }, { "query", DEBUG_QUERY }, { "screen", DEBUG_SCREEN }, { "jit", DEBUG_JIT }, { "show_tiles", DEBUG_SHOW_TILES }, { "show_subtiles", DEBUG_SHOW_SUBTILES }, { "counters", DEBUG_COUNTERS }, { "nopt", DEBUG_NO_LLVM_OPT }, {NULL, 0} }; #endif 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: 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_TEXTURE_MIRROR_CLAMP: return 1; case PIPE_CAP_TEXTURE_MIRROR_REPEAT: return 1; case PIPE_CAP_TEXTURE_SHADOW_MAP: 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_TGSI_CONT_SUPPORTED: return 1; case PIPE_CAP_BLEND_EQUATION_SEPARATE: return 1; case PIPE_CAP_INDEP_BLEND_ENABLE: return 1; case PIPE_CAP_INDEP_BLEND_FUNC: return 0; 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; 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 */ default: 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 bind, unsigned geom_flags ) { 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_TEXTURE_1D || target == PIPE_TEXTURE_2D || target == PIPE_TEXTURE_3D || target == PIPE_TEXTURE_CUBE); 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; } /* * Everything else should be supported by u_format. */ return TRUE; } static void llvmpipe_flush_frontbuffer(struct pipe_screen *_screen, struct pipe_surface *surface, void *context_private) { struct llvmpipe_screen *screen = llvmpipe_screen(_screen); struct sw_winsys *winsys = screen->winsys; struct llvmpipe_resource *texture = llvmpipe_resource(surface->texture); 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; lp_jit_screen_cleanup(screen); if(winsys->destroy) winsys->destroy(winsys); FREE(screen); } /** * 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 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_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; llvmpipe_init_screen_resource_funcs(&screen->base); llvmpipe_init_screen_fence_funcs(&screen->base); lp_jit_screen_init(screen); #ifdef PIPE_OS_WINDOWS /* Multithreading not supported on windows until conditions and barriers are * properly implemented. */ screen->num_threads = 0; #else #ifdef PIPE_OS_EMBEDDED screen->num_threads = 0; #else screen->num_threads = util_cpu_caps.nr_cpus; #endif screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads); screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS); #endif util_format_s3tc_init(); return &screen->base; }