/************************************************************************** * * Copyright 2007 VMware, Inc. * 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 VMWARE 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 "main/accum.h" #include "main/context.h" #include "main/debug_output.h" #include "main/framebuffer.h" #include "main/glthread.h" #include "main/shaderobj.h" #include "main/state.h" #include "main/version.h" #include "main/hash.h" #include "program/prog_cache.h" #include "vbo/vbo.h" #include "glapi/glapi.h" #include "st_manager.h" #include "st_context.h" #include "st_debug.h" #include "st_cb_bitmap.h" #include "st_cb_clear.h" #include "st_cb_drawpixels.h" #include "st_cb_drawtex.h" #include "st_cb_eglimage.h" #include "st_cb_feedback.h" #include "st_cb_flush.h" #include "st_atom.h" #include "st_draw.h" #include "st_extensions.h" #include "st_gen_mipmap.h" #include "st_pbo.h" #include "st_program.h" #include "st_sampler_view.h" #include "st_shader_cache.h" #include "st_texcompress_compute.h" #include "st_texture.h" #include "st_util.h" #include "pipe/p_context.h" #include "util/u_cpu_detect.h" #include "util/u_inlines.h" #include "util/u_upload_mgr.h" #include "util/u_vbuf.h" #include "util/u_memory.h" #include "util/hash_table.h" #include "util/thread_sched.h" #include "cso_cache/cso_context.h" #include "compiler/glsl/glsl_parser_extras.h" DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4, "MESA_MVP_DP4", false) void st_invalidate_buffers(struct st_context *st) { st->ctx->NewDriverState |= ST_NEW_BLEND | ST_NEW_DSA | ST_NEW_FB_STATE | ST_NEW_SAMPLE_STATE | ST_NEW_SAMPLE_SHADING | ST_NEW_FS_STATE | ST_NEW_POLY_STIPPLE | ST_NEW_VIEWPORT | ST_NEW_RASTERIZER | ST_NEW_SCISSOR | ST_NEW_WINDOW_RECTANGLES; } static inline bool st_vp_uses_current_values(const struct gl_context *ctx) { const uint64_t inputs = ctx->VertexProgram._Current->info.inputs_read; return ~_mesa_get_enabled_vertex_arrays(ctx) & inputs; } void st_invalidate_state(struct gl_context *ctx) { GLbitfield new_state = ctx->NewState; struct st_context *st = st_context(ctx); if (new_state & _NEW_BUFFERS) { st_invalidate_buffers(st); } else { /* These set a subset of flags set by _NEW_BUFFERS, so we only have to * check them when _NEW_BUFFERS isn't set. */ if (new_state & _NEW_FOG) ctx->NewDriverState |= ST_NEW_FS_STATE; } if (new_state & (_NEW_LIGHT_STATE | _NEW_POINT)) ctx->NewDriverState |= ST_NEW_RASTERIZER; if ((new_state & _NEW_LIGHT_STATE) && (st->lower_flatshade || st->lower_two_sided_color)) ctx->NewDriverState |= ST_NEW_FS_STATE; if (new_state & _NEW_PROJECTION && st_user_clip_planes_enabled(ctx)) ctx->NewDriverState |= ST_NEW_CLIP_STATE; if (new_state & _NEW_PIXEL) ctx->NewDriverState |= ST_NEW_PIXEL_TRANSFER; if (new_state & _NEW_CURRENT_ATTRIB && st_vp_uses_current_values(ctx)) { ctx->NewDriverState |= ST_NEW_VERTEX_ARRAYS; /* glColor3f -> glColor4f changes the vertex format. */ ctx->Array.NewVertexElements = true; } /* Update the vertex shader if ctx->Light._ClampVertexColor was changed. */ if (st->clamp_vert_color_in_shader && (new_state & _NEW_LIGHT_STATE)) { ctx->NewDriverState |= ST_NEW_VS_STATE; if (_mesa_is_desktop_gl_compat(st->ctx) && ctx->Version >= 32) { ctx->NewDriverState |= ST_NEW_GS_STATE | ST_NEW_TES_STATE; } } /* Update the vertex shader if ctx->Point was changed. */ if (st->lower_point_size && new_state & _NEW_POINT) { if (ctx->GeometryProgram._Current) ctx->NewDriverState |= ST_NEW_GS_STATE | ST_NEW_GS_CONSTANTS; else if (ctx->TessEvalProgram._Current) ctx->NewDriverState |= ST_NEW_TES_STATE | ST_NEW_TES_CONSTANTS; else ctx->NewDriverState |= ST_NEW_VS_STATE | ST_NEW_VS_CONSTANTS; } if (new_state & _NEW_TEXTURE_OBJECT) { ctx->NewDriverState |= st->active_states & (ST_NEW_SAMPLER_VIEWS | ST_NEW_SAMPLERS | ST_NEW_IMAGE_UNITS); if (ctx->FragmentProgram._Current) { struct gl_program *fp = ctx->FragmentProgram._Current; if (fp->ExternalSamplersUsed || fp->ati_fs || (!fp->shader_program && fp->ShadowSamplers)) ctx->NewDriverState |= ST_NEW_FS_STATE; } } } /* * In some circumstances (such as running google-chrome) the state * tracker may try to delete a resource view from a context different * than when it was created. We don't want to do that. * * In that situation, st_texture_release_all_sampler_views() calls this * function to transfer the sampler view reference to this context (expected * to be the context which created the view.) */ void st_save_zombie_sampler_view(struct st_context *st, struct pipe_sampler_view *view) { struct st_zombie_sampler_view_node *entry; assert(view->context == st->pipe); entry = MALLOC_STRUCT(st_zombie_sampler_view_node); if (!entry) return; entry->view = view; /* We need a mutex since this function may be called from one thread * while free_zombie_resource_views() is called from another. */ simple_mtx_lock(&st->zombie_sampler_views.mutex); list_addtail(&entry->node, &st->zombie_sampler_views.list.node); simple_mtx_unlock(&st->zombie_sampler_views.mutex); } /* * Since OpenGL shaders may be shared among contexts, we can wind up * with variants of a shader created with different contexts. * When we go to destroy a gallium shader, we want to free it with the * same context that it was created with, unless the driver reports * PIPE_CAP_SHAREABLE_SHADERS = TRUE. */ void st_save_zombie_shader(struct st_context *st, enum pipe_shader_type type, struct pipe_shader_state *shader) { struct st_zombie_shader_node *entry; /* we shouldn't be here if the driver supports shareable shaders */ assert(!st->has_shareable_shaders); entry = MALLOC_STRUCT(st_zombie_shader_node); if (!entry) return; entry->shader = shader; entry->type = type; /* We need a mutex since this function may be called from one thread * while free_zombie_shaders() is called from another. */ simple_mtx_lock(&st->zombie_shaders.mutex); list_addtail(&entry->node, &st->zombie_shaders.list.node); simple_mtx_unlock(&st->zombie_shaders.mutex); } /* * Free any zombie sampler views that may be attached to this context. */ static void free_zombie_sampler_views(struct st_context *st) { struct st_zombie_sampler_view_node *entry, *next; if (list_is_empty(&st->zombie_sampler_views.list.node)) { return; } simple_mtx_lock(&st->zombie_sampler_views.mutex); LIST_FOR_EACH_ENTRY_SAFE(entry, next, &st->zombie_sampler_views.list.node, node) { list_del(&entry->node); // remove this entry from the list assert(entry->view->context == st->pipe); pipe_sampler_view_reference(&entry->view, NULL); free(entry); } assert(list_is_empty(&st->zombie_sampler_views.list.node)); simple_mtx_unlock(&st->zombie_sampler_views.mutex); } /* * Free any zombie shaders that may be attached to this context. */ static void free_zombie_shaders(struct st_context *st) { struct st_zombie_shader_node *entry, *next; if (list_is_empty(&st->zombie_shaders.list.node)) { return; } simple_mtx_lock(&st->zombie_shaders.mutex); LIST_FOR_EACH_ENTRY_SAFE(entry, next, &st->zombie_shaders.list.node, node) { list_del(&entry->node); // remove this entry from the list switch (entry->type) { case PIPE_SHADER_VERTEX: st->ctx->NewDriverState |= ST_NEW_VS_STATE; st->pipe->delete_vs_state(st->pipe, entry->shader); break; case PIPE_SHADER_FRAGMENT: st->ctx->NewDriverState |= ST_NEW_FS_STATE; st->pipe->delete_fs_state(st->pipe, entry->shader); break; case PIPE_SHADER_GEOMETRY: st->ctx->NewDriverState |= ST_NEW_GS_STATE; st->pipe->delete_gs_state(st->pipe, entry->shader); break; case PIPE_SHADER_TESS_CTRL: st->ctx->NewDriverState |= ST_NEW_TCS_STATE; st->pipe->delete_tcs_state(st->pipe, entry->shader); break; case PIPE_SHADER_TESS_EVAL: st->ctx->NewDriverState |= ST_NEW_TES_STATE; st->pipe->delete_tes_state(st->pipe, entry->shader); break; case PIPE_SHADER_COMPUTE: st->ctx->NewDriverState |= ST_NEW_CS_STATE; st->pipe->delete_compute_state(st->pipe, entry->shader); break; default: unreachable("invalid shader type in free_zombie_shaders()"); } free(entry); } assert(list_is_empty(&st->zombie_shaders.list.node)); simple_mtx_unlock(&st->zombie_shaders.mutex); } /* * This function is called periodically to free any zombie objects * which are attached to this context. */ void st_context_free_zombie_objects(struct st_context *st) { free_zombie_sampler_views(st); free_zombie_shaders(st); } static void st_destroy_context_priv(struct st_context *st, bool destroy_pipe) { st_destroy_draw(st); st_destroy_clear(st); st_destroy_bitmap(st); st_destroy_drawpix(st); st_destroy_drawtex(st); st_destroy_pbo_helpers(st); if (_mesa_has_compute_shaders(st->ctx) && st->transcode_astc) st_destroy_texcompress_compute(st); st_destroy_bound_texture_handles(st); st_destroy_bound_image_handles(st); /* free glReadPixels cache data */ st_invalidate_readpix_cache(st); util_throttle_deinit(st->screen, &st->throttle); cso_destroy_context(st->cso_context); if (st->pipe && destroy_pipe) st->pipe->destroy(st->pipe); st->ctx->st = NULL; FREE(st); } static void st_init_driver_flags(struct st_context *st) { struct gl_driver_flags *f = &st->ctx->DriverFlags; /* Shader resources */ if (st->has_hw_atomics) f->NewAtomicBuffer = ST_NEW_HW_ATOMICS | ST_NEW_CS_ATOMICS; else f->NewAtomicBuffer = ST_NEW_ATOMIC_BUFFER; f->NewShaderConstants[MESA_SHADER_VERTEX] = ST_NEW_VS_CONSTANTS; f->NewShaderConstants[MESA_SHADER_TESS_CTRL] = ST_NEW_TCS_CONSTANTS; f->NewShaderConstants[MESA_SHADER_TESS_EVAL] = ST_NEW_TES_CONSTANTS; f->NewShaderConstants[MESA_SHADER_GEOMETRY] = ST_NEW_GS_CONSTANTS; f->NewShaderConstants[MESA_SHADER_FRAGMENT] = ST_NEW_FS_CONSTANTS; f->NewShaderConstants[MESA_SHADER_COMPUTE] = ST_NEW_CS_CONSTANTS; if (st->lower_alpha_test) f->NewAlphaTest = ST_NEW_FS_STATE | ST_NEW_FS_CONSTANTS; else f->NewAlphaTest = ST_NEW_DSA; f->NewMultisampleEnable = ST_NEW_BLEND | ST_NEW_RASTERIZER | ST_NEW_SAMPLE_STATE | ST_NEW_SAMPLE_SHADING; f->NewSampleShading = ST_NEW_SAMPLE_SHADING; /* This depends on what the gallium driver wants. */ if (st->force_persample_in_shader) { f->NewMultisampleEnable |= ST_NEW_FS_STATE; f->NewSampleShading |= ST_NEW_FS_STATE; } else { f->NewSampleShading |= ST_NEW_RASTERIZER; } if (st->clamp_frag_color_in_shader) { f->NewFragClamp = ST_NEW_FS_STATE; } else { f->NewFragClamp = ST_NEW_RASTERIZER; } f->NewClipPlaneEnable = ST_NEW_RASTERIZER; if (st->lower_ucp) f->NewClipPlaneEnable |= ST_NEW_VS_STATE | ST_NEW_GS_STATE | ST_NEW_TES_STATE; if (st->emulate_gl_clamp) f->NewSamplersWithClamp = ST_NEW_SAMPLERS | ST_NEW_VS_STATE | ST_NEW_TCS_STATE | ST_NEW_TES_STATE | ST_NEW_GS_STATE | ST_NEW_FS_STATE | ST_NEW_CS_STATE; if (!st->has_hw_atomics && st->ctx->Const.ShaderStorageBufferOffsetAlignment > 4) f->NewAtomicBuffer |= ST_NEW_CONSTANTS; } static bool st_have_perfquery(struct st_context *ctx) { struct pipe_context *pipe = ctx->pipe; return pipe->init_intel_perf_query_info && pipe->get_intel_perf_query_info && pipe->get_intel_perf_query_counter_info && pipe->new_intel_perf_query_obj && pipe->begin_intel_perf_query && pipe->end_intel_perf_query && pipe->delete_intel_perf_query && pipe->wait_intel_perf_query && pipe->is_intel_perf_query_ready && pipe->get_intel_perf_query_data; } static struct st_context * st_create_context_priv(struct gl_context *ctx, struct pipe_context *pipe, const struct st_config_options *options) { struct pipe_screen *screen = pipe->screen; struct st_context *st = CALLOC_STRUCT( st_context); st->options = *options; ctx->st_opts = &st->options; ctx->st = st; st->ctx = ctx; st->screen = screen; st->pipe = pipe; st->can_bind_const_buffer_as_vertex = screen->get_param(screen, PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX); /* st/mesa always uploads zero-stride vertex attribs, and other user * vertex buffers are only possible with a compatibility profile. * So tell the u_vbuf module that user VBOs are not possible with the Core * profile, so that u_vbuf is bypassed completely if there is nothing else * to do. */ unsigned cso_flags; switch (ctx->API) { case API_OPENGL_CORE: cso_flags = CSO_NO_USER_VERTEX_BUFFERS; break; case API_OPENGLES: case API_OPENGLES2: cso_flags = CSO_NO_64B_VERTEX_BUFFERS; break; default: cso_flags = 0; break; } st->cso_context = cso_create_context(pipe, cso_flags); ctx->cso_context = st->cso_context; STATIC_ASSERT(ARRAY_SIZE(st->update_functions) <= 64); #define ST_STATE(FLAG, st_update) st->update_functions[FLAG##_INDEX] = st_update; #include "st_atom_list.h" #undef ST_STATE st_init_clear(st); { enum pipe_texture_transfer_mode val = screen->get_param(screen, PIPE_CAP_TEXTURE_TRANSFER_MODES); st->prefer_blit_based_texture_transfer = (val & PIPE_TEXTURE_TRANSFER_BLIT) != 0; st->allow_compute_based_texture_transfer = (val & PIPE_TEXTURE_TRANSFER_COMPUTE) != 0; } st_init_pbo_helpers(st); /* Choose texture target for glDrawPixels, glBitmap, renderbuffers */ if (screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) st->internal_target = PIPE_TEXTURE_2D; else st->internal_target = PIPE_TEXTURE_RECT; /* Setup vertex element info for 'struct st_util_vertex'. */ { STATIC_ASSERT(sizeof(struct st_util_vertex) == 9 * sizeof(float)); memset(&st->util_velems, 0, sizeof(st->util_velems)); st->util_velems.velems[0].src_offset = 0; st->util_velems.velems[0].vertex_buffer_index = 0; st->util_velems.velems[0].src_format = PIPE_FORMAT_R32G32B32_FLOAT; st->util_velems.velems[0].src_stride = sizeof(struct st_util_vertex); st->util_velems.velems[1].src_offset = 3 * sizeof(float); st->util_velems.velems[1].vertex_buffer_index = 0; st->util_velems.velems[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; st->util_velems.velems[1].src_stride = sizeof(struct st_util_vertex); st->util_velems.velems[2].src_offset = 7 * sizeof(float); st->util_velems.velems[2].vertex_buffer_index = 0; st->util_velems.velems[2].src_format = PIPE_FORMAT_R32G32_FLOAT; st->util_velems.velems[2].src_stride = sizeof(struct st_util_vertex); } ctx->Const.PackedDriverUniformStorage = screen->get_param(screen, PIPE_CAP_PACKED_UNIFORMS); ctx->Const.BitmapUsesRed = screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW); ctx->Const.QueryCounterBits.Timestamp = screen->get_param(screen, PIPE_CAP_QUERY_TIMESTAMP_BITS); st->has_stencil_export = screen->get_param(screen, PIPE_CAP_SHADER_STENCIL_EXPORT); st->has_etc1 = screen->is_format_supported(screen, PIPE_FORMAT_ETC1_RGB8, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW); st->has_etc2 = screen->is_format_supported(screen, PIPE_FORMAT_ETC2_RGB8, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW); st->transcode_etc = options->transcode_etc && screen->is_format_supported(screen, PIPE_FORMAT_DXT1_SRGBA, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW); st->transcode_astc = options->transcode_astc && screen->is_format_supported(screen, PIPE_FORMAT_DXT5_SRGBA, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW) && screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW); st->has_astc_2d_ldr = screen->is_format_supported(screen, PIPE_FORMAT_ASTC_4x4_SRGB, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW); st->has_astc_5x5_ldr = screen->is_format_supported(screen, PIPE_FORMAT_ASTC_5x5_SRGB, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW); st->astc_void_extents_need_denorm_flush = screen->get_param(screen, PIPE_CAP_ASTC_VOID_EXTENTS_NEED_DENORM_FLUSH); st->has_s3tc = screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW); st->has_rgtc = screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW); st->has_latc = screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW); st->has_bptc = screen->is_format_supported(screen, PIPE_FORMAT_BPTC_SRGBA, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW); st->force_persample_in_shader = screen->get_param(screen, PIPE_CAP_SAMPLE_SHADING) && !screen->get_param(screen, PIPE_CAP_FORCE_PERSAMPLE_INTERP); st->has_shareable_shaders = screen->get_param(screen, PIPE_CAP_SHAREABLE_SHADERS); st->needs_texcoord_semantic = screen->get_param(screen, PIPE_CAP_TGSI_TEXCOORD); st->apply_texture_swizzle_to_border_color = !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) & (PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 | PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600)); st->use_format_with_border_color = !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) & PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_FREEDRENO); st->alpha_border_color_is_not_w = !!(screen->get_param(screen, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK) & PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_ALPHA_NOT_W); st->emulate_gl_clamp = !screen->get_param(screen, PIPE_CAP_GL_CLAMP); st->has_time_elapsed = screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED); ctx->Const.GLSLHasHalfFloatPacking = screen->get_param(screen, PIPE_CAP_SHADER_PACK_HALF_FLOAT); st->has_multi_draw_indirect = screen->get_param(screen, PIPE_CAP_MULTI_DRAW_INDIRECT); st->has_indirect_partial_stride = screen->get_param(screen, PIPE_CAP_MULTI_DRAW_INDIRECT_PARTIAL_STRIDE); st->has_occlusion_query = screen->get_param(screen, PIPE_CAP_OCCLUSION_QUERY); st->has_single_pipe_stat = screen->get_param(screen, PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE); st->has_pipeline_stat = screen->get_param(screen, PIPE_CAP_QUERY_PIPELINE_STATISTICS); st->has_indep_blend_enable = screen->get_param(screen, PIPE_CAP_INDEP_BLEND_ENABLE); st->has_indep_blend_func = screen->get_param(screen, PIPE_CAP_INDEP_BLEND_FUNC); st->can_dither = screen->get_param(screen, PIPE_CAP_DITHERING); st->lower_flatshade = !screen->get_param(screen, PIPE_CAP_FLATSHADE); st->lower_alpha_test = !screen->get_param(screen, PIPE_CAP_ALPHA_TEST); switch (screen->get_param(screen, PIPE_CAP_POINT_SIZE_FIXED)) { case PIPE_POINT_SIZE_LOWER_ALWAYS: st->lower_point_size = true; st->add_point_size = true; break; case PIPE_POINT_SIZE_LOWER_USER_ONLY: st->lower_point_size = true; break; default: break; } st->lower_two_sided_color = !screen->get_param(screen, PIPE_CAP_TWO_SIDED_COLOR); st->lower_ucp = !screen->get_param(screen, PIPE_CAP_CLIP_PLANES); st->prefer_real_buffer_in_constbuf0 = screen->get_param(screen, PIPE_CAP_PREFER_REAL_BUFFER_IN_CONSTBUF0); st->has_conditional_render = screen->get_param(screen, PIPE_CAP_CONDITIONAL_RENDER); st->lower_rect_tex = !screen->get_param(screen, PIPE_CAP_TEXRECT); st->allow_st_finalize_nir_twice = screen->finalize_nir != NULL; st->has_hw_atomics = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS) ? true : false; st->validate_all_dirty_states = screen->get_param(screen, PIPE_CAP_VALIDATE_ALL_DIRTY_STATES) ? true : false; st->can_null_texture = screen->get_param(screen, PIPE_CAP_NULL_TEXTURES) ? true : false; util_throttle_init(&st->throttle, screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET)); /* GL limits and extensions */ st_init_limits(screen, &ctx->Const, &ctx->Extensions, ctx->API); st_init_extensions(screen, &ctx->Const, &ctx->Extensions, &st->options, ctx->API); if (st_have_perfquery(st)) { ctx->Extensions.INTEL_performance_query = GL_TRUE; } /* Enable shader-based fallbacks for ARB_color_buffer_float if needed. */ if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) { if (!screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_CLAMPED)) { st->clamp_vert_color_in_shader = GL_TRUE; } if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) { st->clamp_frag_color_in_shader = GL_TRUE; } /* For drivers which cannot do color clamping, it's better to just * disable ARB_color_buffer_float in the core profile, because * the clamping is deprecated there anyway. */ if (_mesa_is_desktop_gl_core(ctx) && (st->clamp_frag_color_in_shader || st->clamp_vert_color_in_shader)) { st->clamp_vert_color_in_shader = GL_FALSE; st->clamp_frag_color_in_shader = GL_FALSE; ctx->Extensions.ARB_color_buffer_float = GL_FALSE; } } /* called after _mesa_create_context/_mesa_init_point, fix default user * settable max point size up */ ctx->Point.MaxSize = MAX2(ctx->Const.MaxPointSize, ctx->Const.MaxPointSizeAA); ctx->Const.NoClippingOnCopyTex = screen->get_param(screen, PIPE_CAP_NO_CLIP_ON_COPY_TEX); ctx->Const.ForceFloat32TexNearest = !screen->get_param(screen, PIPE_CAP_TEXTURE_FLOAT_LINEAR); ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].PositionAlwaysInvariant = options->vs_position_always_invariant; ctx->Const.ShaderCompilerOptions[MESA_SHADER_TESS_EVAL].PositionAlwaysPrecise = options->vs_position_always_precise; /* Set which shader types can be compiled at link time. */ st->shader_has_one_variant[MESA_SHADER_VERTEX] = st->has_shareable_shaders && !st->clamp_vert_color_in_shader && !st->lower_point_size && !st->lower_ucp; st->shader_has_one_variant[MESA_SHADER_FRAGMENT] = st->has_shareable_shaders && !st->lower_flatshade && !st->lower_alpha_test && !st->clamp_frag_color_in_shader && !st->force_persample_in_shader && !st->lower_two_sided_color; st->shader_has_one_variant[MESA_SHADER_TESS_CTRL] = st->has_shareable_shaders; st->shader_has_one_variant[MESA_SHADER_TESS_EVAL] = st->has_shareable_shaders && !st->clamp_vert_color_in_shader && !st->lower_point_size && !st->lower_ucp; st->shader_has_one_variant[MESA_SHADER_GEOMETRY] = st->has_shareable_shaders && !st->clamp_vert_color_in_shader && !st->lower_point_size && !st->lower_ucp; st->shader_has_one_variant[MESA_SHADER_COMPUTE] = st->has_shareable_shaders; if (!st->pipe->set_context_param || !util_thread_scheduler_enabled()) st->pin_thread_counter = ST_THREAD_SCHEDULER_DISABLED; st->bitmap.cache.empty = true; if (ctx->Const.ForceGLNamesReuse && ctx->Shared->RefCount == 1) { _mesa_HashEnableNameReuse(&ctx->Shared->TexObjects); _mesa_HashEnableNameReuse(&ctx->Shared->ShaderObjects); _mesa_HashEnableNameReuse(&ctx->Shared->BufferObjects); _mesa_HashEnableNameReuse(&ctx->Shared->SamplerObjects); _mesa_HashEnableNameReuse(&ctx->Shared->FrameBuffers); _mesa_HashEnableNameReuse(&ctx->Shared->RenderBuffers); _mesa_HashEnableNameReuse(&ctx->Shared->MemoryObjects); _mesa_HashEnableNameReuse(&ctx->Shared->SemaphoreObjects); } /* SPECviewperf13/sw-04 crashes since a56849ddda6 if Mesa is build with * -O3 on gcc 7.5, which doesn't happen with ForceGLNamesReuse, which is * the default setting for SPECviewperf because it simulates glGen behavior * of closed source drivers. */ if (ctx->Const.ForceGLNamesReuse) _mesa_HashEnableNameReuse(&ctx->Query.QueryObjects); _mesa_override_extensions(ctx); _mesa_compute_version(ctx); if (ctx->Version == 0 || !_mesa_initialize_dispatch_tables(ctx)) { /* This can happen when a core profile was requested, but the driver * does not support some features of GL 3.1 or later. */ st_destroy_context_priv(st, false); return NULL; } if (_mesa_has_compute_shaders(ctx) && st->transcode_astc && !st_init_texcompress_compute(st)) { /* Transcoding ASTC to DXT5 using compute shaders can provide a * significant performance benefit over the CPU path. It isn't strictly * necessary to fail if we can't use the compute shader path, but it's * very convenient to do so. This should be rare. */ st_destroy_context_priv(st, false); return NULL; } /* This must be done after extensions are initialized to enable persistent * mappings immediately. */ _vbo_CreateContext(ctx); st_init_driver_flags(st); st_init_update_array(st); /* Initialize context's winsys buffers list */ list_inithead(&st->winsys_buffers); list_inithead(&st->zombie_sampler_views.list.node); simple_mtx_init(&st->zombie_sampler_views.mutex, mtx_plain); list_inithead(&st->zombie_shaders.list.node); simple_mtx_init(&st->zombie_shaders.mutex, mtx_plain); ctx->Const.DriverSupportedPrimMask = screen->get_param(screen, PIPE_CAP_SUPPORTED_PRIM_MODES) | /* patches is always supported */ BITFIELD_BIT(MESA_PRIM_PATCHES); st->active_states = _mesa_get_active_states(ctx); return st; } void st_set_background_context(struct gl_context *ctx, struct util_queue_monitoring *queue_info) { struct st_context *st = ctx->st; struct pipe_frontend_screen *fscreen = st->frontend_screen; assert(fscreen->set_background_context); fscreen->set_background_context(st, queue_info); } static void st_init_driver_functions(struct pipe_screen *screen, struct dd_function_table *functions, bool has_egl_image_validate) { st_init_draw_functions(screen, functions); functions->NewProgram = _mesa_new_program; st_init_flush_functions(screen, functions); /* GL_ARB_get_program_binary */ functions->ShaderCacheSerializeDriverBlob = st_serialise_nir_program; functions->ProgramBinarySerializeDriverBlob = st_serialise_nir_program_binary; functions->ProgramBinaryDeserializeDriverBlob = st_deserialise_nir_program; } struct st_context * st_create_context(gl_api api, struct pipe_context *pipe, const struct gl_config *visual, struct st_context *share, const struct st_config_options *options, bool no_error, bool has_egl_image_validate) { struct gl_context *ctx; struct gl_context *shareCtx = share ? share->ctx : NULL; struct dd_function_table funcs; struct st_context *st; memset(&funcs, 0, sizeof(funcs)); st_init_driver_functions(pipe->screen, &funcs, has_egl_image_validate); /* gl_context must be 16-byte aligned due to the alignment on GLmatrix. */ ctx = align_malloc(sizeof(struct gl_context), 16); if (!ctx) return NULL; memset(ctx, 0, sizeof(*ctx)); ctx->pipe = pipe; ctx->screen = pipe->screen; if (!_mesa_initialize_context(ctx, api, no_error, visual, shareCtx, &funcs)) { align_free(ctx); return NULL; } st_debug_init(); if (pipe->screen->get_disk_shader_cache) ctx->Cache = pipe->screen->get_disk_shader_cache(pipe->screen); /* XXX: need a capability bit in gallium to query if the pipe * driver prefers DP4 or MUL/MAD for vertex transformation. */ if (debug_get_option_mesa_mvp_dp4()) ctx->Const.ShaderCompilerOptions[MESA_SHADER_VERTEX].OptimizeForAOS = GL_TRUE; if (pipe->screen->get_param(pipe->screen, PIPE_CAP_INVALIDATE_BUFFER)) ctx->has_invalidate_buffer = true; if (pipe->screen->get_param(pipe->screen, PIPE_CAP_STRING_MARKER)) ctx->has_string_marker = true; st = st_create_context_priv(ctx, pipe, options); if (!st) { _mesa_free_context_data(ctx, true); align_free(ctx); } return st; } /** * When we destroy a context, we must examine all texture objects to * find/release any sampler views created by that context. * * This callback is called per-texture object. It releases all the * texture's sampler views which belong to the context. */ static void destroy_tex_sampler_cb(void *data, void *userData) { struct gl_texture_object *texObj = (struct gl_texture_object *) data; struct st_context *st = (struct st_context *) userData; st_texture_release_context_sampler_view(st, texObj); } static void destroy_framebuffer_attachment_sampler_cb(void *data, void *userData) { struct gl_framebuffer* glfb = (struct gl_framebuffer*) data; struct st_context *st = (struct st_context *) userData; for (unsigned i = 0; i < BUFFER_COUNT; i++) { struct gl_renderbuffer_attachment *att = &glfb->Attachment[i]; if (att->Texture) { st_texture_release_context_sampler_view(st, att->Texture); } } } void st_destroy_context(struct st_context *st) { struct gl_context *ctx = st->ctx; struct gl_framebuffer *stfb, *next; struct gl_framebuffer *save_drawbuffer; struct gl_framebuffer *save_readbuffer; /* Save the current context and draw/read buffers*/ GET_CURRENT_CONTEXT(save_ctx); if (save_ctx) { save_drawbuffer = save_ctx->WinSysDrawBuffer; save_readbuffer = save_ctx->WinSysReadBuffer; } else { save_drawbuffer = save_readbuffer = NULL; } /* * We need to bind the context we're deleting so that * _mesa_reference_texobj_() uses this context when deleting textures. * Similarly for framebuffer objects, etc. */ _mesa_make_current(ctx, NULL, NULL); /* This must be called first so that glthread has a chance to finish */ _mesa_glthread_destroy(ctx); _mesa_HashWalk(&ctx->Shared->TexObjects, destroy_tex_sampler_cb, st); /* For the fallback textures, free any sampler views belonging to this * context. */ for (unsigned i = 0; i < NUM_TEXTURE_TARGETS; i++) { for (unsigned j = 0; j < ARRAY_SIZE(ctx->Shared->FallbackTex[0]); j++) { struct gl_texture_object *stObj = ctx->Shared->FallbackTex[i][j]; if (stObj) { st_texture_release_context_sampler_view(st, stObj); } } } st_release_program(st, &st->fp); st_release_program(st, &st->gp); st_release_program(st, &st->vp); st_release_program(st, &st->tcp); st_release_program(st, &st->tep); st_release_program(st, &st->cp); if (st->hw_select_shaders) { hash_table_foreach(st->hw_select_shaders, entry) st->pipe->delete_gs_state(st->pipe, entry->data); _mesa_hash_table_destroy(st->hw_select_shaders, NULL); } /* release framebuffer in the winsys buffers list */ LIST_FOR_EACH_ENTRY_SAFE_REV(stfb, next, &st->winsys_buffers, head) { _mesa_reference_framebuffer(&stfb, NULL); } _mesa_HashWalk(&ctx->Shared->FrameBuffers, destroy_framebuffer_attachment_sampler_cb, st); pipe_sampler_view_reference(&st->pixel_xfer.pixelmap_sampler_view, NULL); pipe_resource_reference(&st->pixel_xfer.pixelmap_texture, NULL); _vbo_DestroyContext(ctx); st_destroy_program_variants(st); /* Do not release debug_output yet because it might be in use by other threads. * These threads will be terminated by _mesa_free_context_data and * st_destroy_context_priv. */ _mesa_free_context_data(ctx, false); st_context_free_zombie_objects(st); simple_mtx_destroy(&st->zombie_sampler_views.mutex); simple_mtx_destroy(&st->zombie_shaders.mutex); /* This will free the st_context too, so 'st' must not be accessed * afterwards. */ st_destroy_context_priv(st, true); st = NULL; _mesa_destroy_debug_output(ctx); align_free(ctx); if (save_ctx == ctx) { /* unbind the context we just deleted */ _mesa_make_current(NULL, NULL, NULL); } else { /* Restore the current context and draw/read buffers (may be NULL) */ _mesa_make_current(save_ctx, save_drawbuffer, save_readbuffer); } } const struct nir_shader_compiler_options * st_get_nir_compiler_options(struct st_context *st, gl_shader_stage stage) { return st->ctx->Const.ShaderCompilerOptions[stage].NirOptions; }