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| /************************************************************************** |
| * |
| * Copyright 2009, 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. |
| * |
| **************************************************************************/ |
| /* |
| * Author: Keith Whitwell <keithw@vmware.com> |
| * Author: Jakob Bornecrantz <wallbraker@gmail.com> |
| */ |
| |
| #include "utils.h" |
| |
| #include "dri_screen.h" |
| #include "dri_drawable.h" |
| #include "dri_context.h" |
| #include "state_tracker/drm_driver.h" |
| |
| #include "pipe/p_context.h" |
| #include "state_tracker/st_context.h" |
| |
| static void |
| dri_pp_query(struct dri_context *ctx) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < PP_FILTERS; i++) { |
| ctx->pp_enabled[i] = driQueryOptioni(&ctx->optionCache, pp_filters[i].name); |
| } |
| } |
| |
| static void dri_fill_st_options(struct st_config_options *options, |
| const struct driOptionCache * optionCache) |
| { |
| options->disable_blend_func_extended = |
| driQueryOptionb(optionCache, "disable_blend_func_extended"); |
| options->disable_glsl_line_continuations = |
| driQueryOptionb(optionCache, "disable_glsl_line_continuations"); |
| options->disable_shader_bit_encoding = |
| driQueryOptionb(optionCache, "disable_shader_bit_encoding"); |
| options->force_glsl_extensions_warn = |
| driQueryOptionb(optionCache, "force_glsl_extensions_warn"); |
| options->force_glsl_version = |
| driQueryOptioni(optionCache, "force_glsl_version"); |
| options->force_s3tc_enable = |
| driQueryOptionb(optionCache, "force_s3tc_enable"); |
| } |
| |
| GLboolean |
| dri_create_context(gl_api api, const struct gl_config * visual, |
| __DRIcontext * cPriv, |
| unsigned major_version, |
| unsigned minor_version, |
| uint32_t flags, |
| unsigned *error, |
| void *sharedContextPrivate) |
| { |
| __DRIscreen *sPriv = cPriv->driScreenPriv; |
| struct dri_screen *screen = dri_screen(sPriv); |
| struct st_api *stapi = screen->st_api; |
| struct dri_context *ctx = NULL; |
| struct st_context_iface *st_share = NULL; |
| struct st_context_attribs attribs; |
| enum st_context_error ctx_err = 0; |
| |
| memset(&attribs, 0, sizeof(attribs)); |
| switch (api) { |
| case API_OPENGLES: |
| attribs.profile = ST_PROFILE_OPENGL_ES1; |
| break; |
| case API_OPENGLES2: |
| attribs.profile = ST_PROFILE_OPENGL_ES2; |
| break; |
| case API_OPENGL_COMPAT: |
| case API_OPENGL_CORE: |
| attribs.profile = api == API_OPENGL_COMPAT ? ST_PROFILE_DEFAULT |
| : ST_PROFILE_OPENGL_CORE; |
| attribs.major = major_version; |
| attribs.minor = minor_version; |
| |
| if ((flags & __DRI_CTX_FLAG_DEBUG) != 0) |
| attribs.flags |= ST_CONTEXT_FLAG_DEBUG; |
| |
| if ((flags & __DRI_CTX_FLAG_FORWARD_COMPATIBLE) != 0) |
| attribs.flags |= ST_CONTEXT_FLAG_FORWARD_COMPATIBLE; |
| break; |
| default: |
| *error = __DRI_CTX_ERROR_BAD_API; |
| goto fail; |
| } |
| |
| if (sharedContextPrivate) { |
| st_share = ((struct dri_context *)sharedContextPrivate)->st; |
| } |
| |
| ctx = CALLOC_STRUCT(dri_context); |
| if (ctx == NULL) { |
| *error = __DRI_CTX_ERROR_NO_MEMORY; |
| goto fail; |
| } |
| |
| cPriv->driverPrivate = ctx; |
| ctx->cPriv = cPriv; |
| ctx->sPriv = sPriv; |
| |
| driParseConfigFiles(&ctx->optionCache, |
| &screen->optionCacheDefaults, |
| sPriv->myNum, driver_descriptor.name); |
| |
| dri_fill_st_options(&attribs.options, &ctx->optionCache); |
| dri_fill_st_visual(&attribs.visual, screen, visual); |
| ctx->st = stapi->create_context(stapi, &screen->base, &attribs, &ctx_err, |
| st_share); |
| if (ctx->st == NULL) { |
| switch (ctx_err) { |
| case ST_CONTEXT_SUCCESS: |
| *error = __DRI_CTX_ERROR_SUCCESS; |
| break; |
| case ST_CONTEXT_ERROR_NO_MEMORY: |
| *error = __DRI_CTX_ERROR_NO_MEMORY; |
| break; |
| case ST_CONTEXT_ERROR_BAD_API: |
| *error = __DRI_CTX_ERROR_BAD_API; |
| break; |
| case ST_CONTEXT_ERROR_BAD_VERSION: |
| *error = __DRI_CTX_ERROR_BAD_VERSION; |
| break; |
| case ST_CONTEXT_ERROR_BAD_FLAG: |
| *error = __DRI_CTX_ERROR_BAD_FLAG; |
| break; |
| case ST_CONTEXT_ERROR_UNKNOWN_ATTRIBUTE: |
| *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE; |
| break; |
| case ST_CONTEXT_ERROR_UNKNOWN_FLAG: |
| *error = __DRI_CTX_ERROR_UNKNOWN_FLAG; |
| break; |
| } |
| goto fail; |
| } |
| ctx->st->st_manager_private = (void *) ctx; |
| ctx->stapi = stapi; |
| |
| // Context successfully created. See if post-processing is requested. |
| dri_pp_query(ctx); |
| |
| if (ctx->st->cso_context) { |
| ctx->pp = pp_init(ctx->st->pipe, ctx->pp_enabled, ctx->st->cso_context); |
| ctx->hud = hud_create(ctx->st->pipe, ctx->st->cso_context); |
| } |
| |
| *error = __DRI_CTX_ERROR_SUCCESS; |
| return GL_TRUE; |
| |
| fail: |
| if (ctx && ctx->st) |
| ctx->st->destroy(ctx->st); |
| |
| free(ctx); |
| return GL_FALSE; |
| } |
| |
| void |
| dri_destroy_context(__DRIcontext * cPriv) |
| { |
| struct dri_context *ctx = dri_context(cPriv); |
| |
| if (ctx->hud) { |
| hud_destroy(ctx->hud); |
| } |
| |
| /* note: we are freeing values and nothing more because |
| * driParseConfigFiles allocated values only - the rest |
| * is owned by screen optionCacheDefaults. |
| */ |
| free(ctx->optionCache.values); |
| |
| /* No particular reason to wait for command completion before |
| * destroying a context, but we flush the context here |
| * to avoid having to add code elsewhere to cope with flushing a |
| * partially destroyed context. |
| */ |
| ctx->st->flush(ctx->st, 0, NULL); |
| ctx->st->destroy(ctx->st); |
| |
| if (ctx->pp) pp_free(ctx->pp); |
| |
| free(ctx); |
| } |
| |
| GLboolean |
| dri_unbind_context(__DRIcontext * cPriv) |
| { |
| /* dri_util.c ensures cPriv is not null */ |
| struct dri_screen *screen = dri_screen(cPriv->driScreenPriv); |
| struct dri_context *ctx = dri_context(cPriv); |
| struct st_api *stapi = screen->st_api; |
| |
| if (--ctx->bind_count == 0) { |
| if (ctx->st == ctx->stapi->get_current(ctx->stapi)) { |
| /* For conformance, unbind is supposed to flush the context. |
| * However, if we do it here we might end up flushing a partially |
| * destroyed context. Instead, we flush in dri_make_current and |
| * in dri_destroy_context which should cover all the cases. |
| */ |
| stapi->make_current(stapi, NULL, NULL, NULL); |
| } |
| } |
| |
| return GL_TRUE; |
| } |
| |
| GLboolean |
| dri_make_current(__DRIcontext * cPriv, |
| __DRIdrawable * driDrawPriv, |
| __DRIdrawable * driReadPriv) |
| { |
| /* dri_util.c ensures cPriv is not null */ |
| struct dri_context *ctx = dri_context(cPriv); |
| struct dri_drawable *draw = dri_drawable(driDrawPriv); |
| struct dri_drawable *read = dri_drawable(driReadPriv); |
| struct st_context_iface *old_st = ctx->stapi->get_current(ctx->stapi); |
| |
| /* Flush the old context here so we don't have to flush on unbind() */ |
| if (old_st && old_st != ctx->st) |
| old_st->flush(old_st, ST_FLUSH_FRONT, NULL); |
| |
| ++ctx->bind_count; |
| |
| if (!driDrawPriv && !driReadPriv) |
| return ctx->stapi->make_current(ctx->stapi, ctx->st, NULL, NULL); |
| else if (!driDrawPriv || !driReadPriv) |
| return GL_FALSE; |
| |
| if (ctx->dPriv != driDrawPriv) { |
| ctx->dPriv = driDrawPriv; |
| draw->texture_stamp = driDrawPriv->lastStamp - 1; |
| } |
| if (ctx->rPriv != driReadPriv) { |
| ctx->rPriv = driReadPriv; |
| read->texture_stamp = driReadPriv->lastStamp - 1; |
| } |
| |
| ctx->stapi->make_current(ctx->stapi, ctx->st, &draw->base, &read->base); |
| |
| // This is ok to call here. If they are already init, it's a no-op. |
| if (draw->textures[ST_ATTACHMENT_BACK_LEFT] && draw->textures[ST_ATTACHMENT_DEPTH_STENCIL] |
| && ctx->pp) |
| pp_init_fbos(ctx->pp, draw->textures[ST_ATTACHMENT_BACK_LEFT]->width0, |
| draw->textures[ST_ATTACHMENT_BACK_LEFT]->height0); |
| |
| return GL_TRUE; |
| } |
| |
| struct dri_context * |
| dri_get_current(__DRIscreen *sPriv) |
| { |
| struct dri_screen *screen = dri_screen(sPriv); |
| struct st_api *stapi = screen->st_api; |
| struct st_context_iface *st; |
| |
| st = stapi->get_current(stapi); |
| |
| return (struct dri_context *) (st) ? st->st_manager_private : NULL; |
| } |
| |
| /* vim: set sw=3 ts=8 sts=3 expandtab: */ |