| /************************************************************************** |
| * |
| * Copyright 2003 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 <errno.h> |
| #include "main/glheader.h" |
| #include "main/context.h" |
| #include "main/framebuffer.h" |
| #include "main/renderbuffer.h" |
| #include "main/hash.h" |
| #include "main/fbobject.h" |
| #include "main/mfeatures.h" |
| #include "main/version.h" |
| #include "swrast/s_renderbuffer.h" |
| |
| #include "utils.h" |
| #include "xmlpool.h" |
| |
| PUBLIC const char __driConfigOptions[] = |
| DRI_CONF_BEGIN |
| DRI_CONF_SECTION_PERFORMANCE |
| DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_ALWAYS_SYNC) |
| /* Options correspond to DRI_CONF_BO_REUSE_DISABLED, |
| * DRI_CONF_BO_REUSE_ALL |
| */ |
| DRI_CONF_OPT_BEGIN_V(bo_reuse, enum, 1, "0:1") |
| DRI_CONF_DESC_BEGIN(en, "Buffer object reuse") |
| DRI_CONF_ENUM(0, "Disable buffer object reuse") |
| DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects") |
| DRI_CONF_DESC_END |
| DRI_CONF_OPT_END |
| |
| DRI_CONF_OPT_BEGIN(texture_tiling, bool, true) |
| DRI_CONF_DESC(en, "Enable texture tiling") |
| DRI_CONF_OPT_END |
| |
| DRI_CONF_OPT_BEGIN(hiz, bool, true) |
| DRI_CONF_DESC(en, "Enable Hierarchical Z on gen6+") |
| DRI_CONF_OPT_END |
| |
| DRI_CONF_OPT_BEGIN(early_z, bool, false) |
| DRI_CONF_DESC(en, "Enable early Z in classic mode (unstable, 945-only).") |
| DRI_CONF_OPT_END |
| |
| DRI_CONF_OPT_BEGIN(fragment_shader, bool, true) |
| DRI_CONF_DESC(en, "Enable limited ARB_fragment_shader support on 915/945.") |
| DRI_CONF_OPT_END |
| |
| DRI_CONF_SECTION_END |
| DRI_CONF_SECTION_QUALITY |
| DRI_CONF_FORCE_S3TC_ENABLE(false) |
| DRI_CONF_ALLOW_LARGE_TEXTURES(2) |
| DRI_CONF_SECTION_END |
| DRI_CONF_SECTION_DEBUG |
| DRI_CONF_NO_RAST(false) |
| DRI_CONF_ALWAYS_FLUSH_BATCH(false) |
| DRI_CONF_ALWAYS_FLUSH_CACHE(false) |
| DRI_CONF_FORCE_GLSL_EXTENSIONS_WARN(false) |
| |
| DRI_CONF_OPT_BEGIN(stub_occlusion_query, bool, false) |
| DRI_CONF_DESC(en, "Enable stub ARB_occlusion_query support on 915/945.") |
| DRI_CONF_OPT_END |
| |
| DRI_CONF_OPT_BEGIN(shader_precompile, bool, false) |
| DRI_CONF_DESC(en, "Perform code generation at shader link time.") |
| DRI_CONF_OPT_END |
| DRI_CONF_SECTION_END |
| DRI_CONF_END; |
| |
| const GLuint __driNConfigOptions = 14; |
| |
| #include "intel_batchbuffer.h" |
| #include "intel_buffers.h" |
| #include "intel_bufmgr.h" |
| #include "intel_chipset.h" |
| #include "intel_fbo.h" |
| #include "intel_mipmap_tree.h" |
| #include "intel_screen.h" |
| #include "intel_tex.h" |
| #include "intel_regions.h" |
| |
| #include "i915_drm.h" |
| |
| #ifdef USE_NEW_INTERFACE |
| static PFNGLXCREATECONTEXTMODES create_context_modes = NULL; |
| #endif /*USE_NEW_INTERFACE */ |
| |
| void |
| aub_dump_bmp(struct gl_context *ctx) |
| { |
| struct gl_framebuffer *fb = ctx->DrawBuffer; |
| |
| for (int i = 0; i < fb->_NumColorDrawBuffers; i++) { |
| struct intel_renderbuffer *irb = |
| intel_renderbuffer(fb->_ColorDrawBuffers[i]); |
| |
| if (irb && irb->mt) { |
| enum aub_dump_bmp_format format; |
| |
| switch (irb->Base.Base.Format) { |
| case MESA_FORMAT_ARGB8888: |
| case MESA_FORMAT_XRGB8888: |
| format = AUB_DUMP_BMP_FORMAT_ARGB_8888; |
| break; |
| default: |
| continue; |
| } |
| |
| drm_intel_gem_bo_aub_dump_bmp(irb->mt->region->bo, |
| irb->draw_x, |
| irb->draw_y, |
| irb->Base.Base.Width, |
| irb->Base.Base.Height, |
| format, |
| irb->mt->region->pitch * |
| irb->mt->region->cpp, |
| 0); |
| } |
| } |
| } |
| |
| static const __DRItexBufferExtension intelTexBufferExtension = { |
| { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION }, |
| intelSetTexBuffer, |
| intelSetTexBuffer2, |
| }; |
| |
| static void |
| intelDRI2Flush(__DRIdrawable *drawable) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct intel_context *intel = intel_context(ctx); |
| if (intel == NULL) |
| return; |
| |
| if (intel->gen < 4) |
| INTEL_FIREVERTICES(intel); |
| |
| intel->need_throttle = true; |
| |
| if (intel->batch.used) |
| intel_batchbuffer_flush(intel); |
| |
| if (INTEL_DEBUG & DEBUG_AUB) { |
| aub_dump_bmp(ctx); |
| } |
| } |
| |
| static const struct __DRI2flushExtensionRec intelFlushExtension = { |
| { __DRI2_FLUSH, __DRI2_FLUSH_VERSION }, |
| intelDRI2Flush, |
| dri2InvalidateDrawable, |
| }; |
| |
| static __DRIimage * |
| intel_create_image_from_name(__DRIscreen *screen, |
| int width, int height, int format, |
| int name, int pitch, void *loaderPrivate) |
| { |
| struct intel_screen *intelScreen = screen->driverPrivate; |
| __DRIimage *image; |
| int cpp; |
| |
| image = CALLOC(sizeof *image); |
| if (image == NULL) |
| return NULL; |
| |
| switch (format) { |
| case __DRI_IMAGE_FORMAT_RGB565: |
| image->format = MESA_FORMAT_RGB565; |
| image->internal_format = GL_RGB; |
| image->data_type = GL_UNSIGNED_BYTE; |
| break; |
| case __DRI_IMAGE_FORMAT_XRGB8888: |
| image->format = MESA_FORMAT_XRGB8888; |
| image->internal_format = GL_RGB; |
| image->data_type = GL_UNSIGNED_BYTE; |
| break; |
| case __DRI_IMAGE_FORMAT_ARGB8888: |
| image->format = MESA_FORMAT_ARGB8888; |
| image->internal_format = GL_RGBA; |
| image->data_type = GL_UNSIGNED_BYTE; |
| break; |
| case __DRI_IMAGE_FORMAT_ABGR8888: |
| image->format = MESA_FORMAT_RGBA8888_REV; |
| image->internal_format = GL_RGBA; |
| image->data_type = GL_UNSIGNED_BYTE; |
| break; |
| default: |
| free(image); |
| return NULL; |
| } |
| |
| image->data = loaderPrivate; |
| cpp = _mesa_get_format_bytes(image->format); |
| |
| image->region = intel_region_alloc_for_handle(intelScreen, |
| cpp, width, height, |
| pitch, name, "image"); |
| if (image->region == NULL) { |
| FREE(image); |
| return NULL; |
| } |
| |
| return image; |
| } |
| |
| static __DRIimage * |
| intel_create_image_from_renderbuffer(__DRIcontext *context, |
| int renderbuffer, void *loaderPrivate) |
| { |
| __DRIimage *image; |
| struct intel_context *intel = context->driverPrivate; |
| struct gl_renderbuffer *rb; |
| struct intel_renderbuffer *irb; |
| |
| rb = _mesa_lookup_renderbuffer(&intel->ctx, renderbuffer); |
| if (!rb) { |
| _mesa_error(&intel->ctx, |
| GL_INVALID_OPERATION, "glRenderbufferExternalMESA"); |
| return NULL; |
| } |
| |
| irb = intel_renderbuffer(rb); |
| image = CALLOC(sizeof *image); |
| if (image == NULL) |
| return NULL; |
| |
| image->internal_format = rb->InternalFormat; |
| image->format = rb->Format; |
| image->data_type = GL_UNSIGNED_BYTE; |
| image->data = loaderPrivate; |
| intel_region_reference(&image->region, irb->mt->region); |
| |
| return image; |
| } |
| |
| static void |
| intel_destroy_image(__DRIimage *image) |
| { |
| intel_region_release(&image->region); |
| FREE(image); |
| } |
| |
| static __DRIimage * |
| intel_create_image(__DRIscreen *screen, |
| int width, int height, int format, |
| unsigned int use, |
| void *loaderPrivate) |
| { |
| __DRIimage *image; |
| struct intel_screen *intelScreen = screen->driverPrivate; |
| uint32_t tiling; |
| int cpp; |
| |
| tiling = I915_TILING_X; |
| if (use & __DRI_IMAGE_USE_CURSOR) { |
| if (width != 64 || height != 64) |
| return NULL; |
| tiling = I915_TILING_NONE; |
| } |
| |
| image = CALLOC(sizeof *image); |
| if (image == NULL) |
| return NULL; |
| |
| image->dri_format = format; |
| |
| switch (format) { |
| case __DRI_IMAGE_FORMAT_RGB565: |
| image->format = MESA_FORMAT_RGB565; |
| image->internal_format = GL_RGB; |
| image->data_type = GL_UNSIGNED_BYTE; |
| break; |
| case __DRI_IMAGE_FORMAT_XRGB8888: |
| image->format = MESA_FORMAT_XRGB8888; |
| image->internal_format = GL_RGB; |
| image->data_type = GL_UNSIGNED_BYTE; |
| break; |
| case __DRI_IMAGE_FORMAT_ARGB8888: |
| image->format = MESA_FORMAT_ARGB8888; |
| image->internal_format = GL_RGBA; |
| image->data_type = GL_UNSIGNED_BYTE; |
| break; |
| case __DRI_IMAGE_FORMAT_ABGR8888: |
| image->format = MESA_FORMAT_RGBA8888_REV; |
| image->internal_format = GL_RGBA; |
| image->data_type = GL_UNSIGNED_BYTE; |
| break; |
| default: |
| free(image); |
| return NULL; |
| } |
| |
| image->data = loaderPrivate; |
| cpp = _mesa_get_format_bytes(image->format); |
| |
| image->region = |
| intel_region_alloc(intelScreen, tiling, |
| cpp, width, height, true); |
| if (image->region == NULL) { |
| FREE(image); |
| return NULL; |
| } |
| |
| return image; |
| } |
| |
| static GLboolean |
| intel_query_image(__DRIimage *image, int attrib, int *value) |
| { |
| switch (attrib) { |
| case __DRI_IMAGE_ATTRIB_STRIDE: |
| *value = image->region->pitch * image->region->cpp; |
| return true; |
| case __DRI_IMAGE_ATTRIB_HANDLE: |
| *value = image->region->bo->handle; |
| return true; |
| case __DRI_IMAGE_ATTRIB_NAME: |
| return intel_region_flink(image->region, (uint32_t *) value); |
| case __DRI_IMAGE_ATTRIB_FORMAT: |
| return image->dri_format; |
| default: |
| return false; |
| } |
| } |
| |
| static __DRIimage * |
| intel_dup_image(__DRIimage *orig_image, void *loaderPrivate) |
| { |
| __DRIimage *image; |
| |
| image = CALLOC(sizeof *image); |
| if (image == NULL) |
| return NULL; |
| |
| intel_region_reference(&image->region, orig_image->region); |
| if (image->region == NULL) { |
| FREE(image); |
| return NULL; |
| } |
| |
| image->internal_format = orig_image->internal_format; |
| image->format = orig_image->format; |
| image->data_type = orig_image->data_type; |
| image->data = loaderPrivate; |
| |
| return image; |
| } |
| |
| static GLboolean |
| intel_validate_usage(__DRIimage *image, unsigned int use) |
| { |
| if (use & __DRI_IMAGE_USE_CURSOR) { |
| if (image->region->width != 64 || image->region->height != 64) |
| return GL_FALSE; |
| } |
| |
| return GL_TRUE; |
| } |
| |
| static struct __DRIimageExtensionRec intelImageExtension = { |
| { __DRI_IMAGE, 3 }, |
| intel_create_image_from_name, |
| intel_create_image_from_renderbuffer, |
| intel_destroy_image, |
| intel_create_image, |
| intel_query_image, |
| intel_dup_image, |
| intel_validate_usage |
| }; |
| |
| static const __DRIextension *intelScreenExtensions[] = { |
| &intelTexBufferExtension.base, |
| &intelFlushExtension.base, |
| &intelImageExtension.base, |
| &dri2ConfigQueryExtension.base, |
| NULL |
| }; |
| |
| static bool |
| intel_get_param(__DRIscreen *psp, int param, int *value) |
| { |
| int ret; |
| struct drm_i915_getparam gp; |
| |
| memset(&gp, 0, sizeof(gp)); |
| gp.param = param; |
| gp.value = value; |
| |
| ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp)); |
| if (ret) { |
| if (ret != -EINVAL) |
| _mesa_warning(NULL, "drm_i915_getparam: %d", ret); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static bool |
| intel_get_boolean(__DRIscreen *psp, int param) |
| { |
| int value = 0; |
| return intel_get_param(psp, param, &value) && value; |
| } |
| |
| static void |
| nop_callback(GLuint key, void *data, void *userData) |
| { |
| } |
| |
| static void |
| intelDestroyScreen(__DRIscreen * sPriv) |
| { |
| struct intel_screen *intelScreen = sPriv->driverPrivate; |
| |
| dri_bufmgr_destroy(intelScreen->bufmgr); |
| driDestroyOptionInfo(&intelScreen->optionCache); |
| |
| /* Some regions may still have references to them at this point, so |
| * flush the hash table to prevent _mesa_DeleteHashTable() from |
| * complaining about the hash not being empty; */ |
| _mesa_HashDeleteAll(intelScreen->named_regions, nop_callback, NULL); |
| _mesa_DeleteHashTable(intelScreen->named_regions); |
| |
| FREE(intelScreen); |
| sPriv->driverPrivate = NULL; |
| } |
| |
| |
| /** |
| * This is called when we need to set up GL rendering to a new X window. |
| */ |
| static GLboolean |
| intelCreateBuffer(__DRIscreen * driScrnPriv, |
| __DRIdrawable * driDrawPriv, |
| const struct gl_config * mesaVis, GLboolean isPixmap) |
| { |
| struct intel_renderbuffer *rb; |
| struct intel_screen *screen = (struct intel_screen*) driScrnPriv->driverPrivate; |
| |
| if (isPixmap) { |
| return false; /* not implemented */ |
| } |
| else { |
| gl_format rgbFormat; |
| |
| struct gl_framebuffer *fb = CALLOC_STRUCT(gl_framebuffer); |
| |
| if (!fb) |
| return false; |
| |
| _mesa_initialize_window_framebuffer(fb, mesaVis); |
| |
| if (mesaVis->redBits == 5) |
| rgbFormat = MESA_FORMAT_RGB565; |
| else if (mesaVis->alphaBits == 0) |
| rgbFormat = MESA_FORMAT_XRGB8888; |
| else |
| rgbFormat = MESA_FORMAT_ARGB8888; |
| |
| /* setup the hardware-based renderbuffers */ |
| rb = intel_create_renderbuffer(rgbFormat); |
| _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &rb->Base.Base); |
| |
| if (mesaVis->doubleBufferMode) { |
| rb = intel_create_renderbuffer(rgbFormat); |
| _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &rb->Base.Base); |
| } |
| |
| /* |
| * Assert here that the gl_config has an expected depth/stencil bit |
| * combination: one of d24/s8, d16/s0, d0/s0. (See intelInitScreen2(), |
| * which constructs the advertised configs.) |
| */ |
| if (mesaVis->depthBits == 24) { |
| assert(mesaVis->stencilBits == 8); |
| |
| if (screen->hw_has_separate_stencil |
| && screen->dri2_has_hiz != INTEL_DRI2_HAS_HIZ_FALSE) { |
| /* |
| * Request a separate stencil buffer even if we do not yet know if |
| * the screen supports it. (See comments for |
| * enum intel_dri2_has_hiz). |
| */ |
| rb = intel_create_renderbuffer(MESA_FORMAT_X8_Z24); |
| _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &rb->Base.Base); |
| rb = intel_create_renderbuffer(MESA_FORMAT_S8); |
| _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &rb->Base.Base); |
| } else { |
| /* |
| * Use combined depth/stencil. Note that the renderbuffer is |
| * attached to two attachment points. |
| */ |
| rb = intel_create_renderbuffer(MESA_FORMAT_S8_Z24); |
| _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &rb->Base.Base); |
| _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &rb->Base.Base); |
| } |
| } |
| else if (mesaVis->depthBits == 16) { |
| assert(mesaVis->stencilBits == 0); |
| /* just 16-bit depth buffer, no hw stencil */ |
| struct intel_renderbuffer *depthRb |
| = intel_create_renderbuffer(MESA_FORMAT_Z16); |
| _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base.Base); |
| } |
| else { |
| assert(mesaVis->depthBits == 0); |
| assert(mesaVis->stencilBits == 0); |
| } |
| |
| /* now add any/all software-based renderbuffers we may need */ |
| _swrast_add_soft_renderbuffers(fb, |
| false, /* never sw color */ |
| false, /* never sw depth */ |
| false, /* never sw stencil */ |
| mesaVis->accumRedBits > 0, |
| false, /* never sw alpha */ |
| false /* never sw aux */ ); |
| driDrawPriv->driverPrivate = fb; |
| |
| return true; |
| } |
| } |
| |
| static void |
| intelDestroyBuffer(__DRIdrawable * driDrawPriv) |
| { |
| struct gl_framebuffer *fb = driDrawPriv->driverPrivate; |
| |
| _mesa_reference_framebuffer(&fb, NULL); |
| } |
| |
| /* There are probably better ways to do this, such as an |
| * init-designated function to register chipids and createcontext |
| * functions. |
| */ |
| extern bool |
| i830CreateContext(const struct gl_config *mesaVis, |
| __DRIcontext *driContextPriv, |
| void *sharedContextPrivate); |
| |
| extern bool |
| i915CreateContext(int api, |
| const struct gl_config *mesaVis, |
| __DRIcontext *driContextPriv, |
| void *sharedContextPrivate); |
| extern bool |
| brwCreateContext(int api, |
| const struct gl_config *mesaVis, |
| __DRIcontext *driContextPriv, |
| void *sharedContextPrivate); |
| |
| static GLboolean |
| intelCreateContext(gl_api api, |
| const struct gl_config * mesaVis, |
| __DRIcontext * driContextPriv, |
| unsigned major_version, |
| unsigned minor_version, |
| uint32_t flags, |
| unsigned *error, |
| void *sharedContextPrivate) |
| { |
| __DRIscreen *sPriv = driContextPriv->driScreenPriv; |
| struct intel_screen *intelScreen = sPriv->driverPrivate; |
| bool success = false; |
| |
| #ifdef I915 |
| if (IS_9XX(intelScreen->deviceID)) { |
| if (!IS_965(intelScreen->deviceID)) { |
| success = i915CreateContext(api, mesaVis, driContextPriv, |
| sharedContextPrivate); |
| } |
| } else { |
| intelScreen->no_vbo = true; |
| success = i830CreateContext(mesaVis, driContextPriv, |
| sharedContextPrivate); |
| } |
| #else |
| if (IS_965(intelScreen->deviceID)) |
| success = brwCreateContext(api, mesaVis, |
| driContextPriv, |
| sharedContextPrivate); |
| #endif |
| |
| if (success) { |
| struct gl_context *ctx = |
| (struct gl_context *) driContextPriv->driverPrivate; |
| |
| _mesa_compute_version(ctx); |
| if (ctx->VersionMajor > major_version |
| || (ctx->VersionMajor == major_version |
| && ctx->VersionMinor >= minor_version)) { |
| *error = __DRI_CTX_ERROR_BAD_VERSION; |
| return true; |
| } |
| |
| intelDestroyContext(driContextPriv); |
| } else { |
| *error = __DRI_CTX_ERROR_NO_MEMORY; |
| fprintf(stderr, "Unrecognized deviceID 0x%x\n", intelScreen->deviceID); |
| } |
| |
| return false; |
| } |
| |
| static bool |
| intel_init_bufmgr(struct intel_screen *intelScreen) |
| { |
| __DRIscreen *spriv = intelScreen->driScrnPriv; |
| int num_fences = 0; |
| |
| intelScreen->no_hw = getenv("INTEL_NO_HW") != NULL; |
| |
| intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ); |
| if (intelScreen->bufmgr == NULL) { |
| fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n", |
| __func__, __LINE__); |
| return false; |
| } |
| |
| if (!intel_get_param(spriv, I915_PARAM_NUM_FENCES_AVAIL, &num_fences) || |
| num_fences == 0) { |
| fprintf(stderr, "[%s: %u] Kernel 2.6.29 required.\n", __func__, __LINE__); |
| return false; |
| } |
| |
| drm_intel_bufmgr_gem_enable_fenced_relocs(intelScreen->bufmgr); |
| |
| intelScreen->named_regions = _mesa_NewHashTable(); |
| |
| intelScreen->relaxed_relocations = 0; |
| intelScreen->relaxed_relocations |= |
| intel_get_boolean(spriv, I915_PARAM_HAS_RELAXED_DELTA) << 0; |
| |
| return true; |
| } |
| |
| /** |
| * Override intel_screen.hw_has_separate_stencil with environment variable |
| * INTEL_SEPARATE_STENCIL. |
| * |
| * Valid values for INTEL_SEPARATE_STENCIL are "0" and "1". If an invalid |
| * valid value is encountered, a warning is emitted and INTEL_SEPARATE_STENCIL |
| * is ignored. |
| */ |
| static void |
| intel_override_separate_stencil(struct intel_screen *screen) |
| { |
| const char *s = getenv("INTEL_SEPARATE_STENCIL"); |
| if (!s) { |
| return; |
| } else if (!strncmp("0", s, 2)) { |
| screen->hw_has_separate_stencil = false; |
| } else if (!strncmp("1", s, 2)) { |
| screen->hw_has_separate_stencil = true; |
| } else { |
| fprintf(stderr, |
| "warning: env variable INTEL_SEPARATE_STENCIL=\"%s\" has " |
| "invalid value and is ignored", s); |
| } |
| } |
| |
| static bool |
| intel_detect_swizzling(struct intel_screen *screen) |
| { |
| drm_intel_bo *buffer; |
| unsigned long flags = 0; |
| unsigned long aligned_pitch; |
| uint32_t tiling = I915_TILING_X; |
| uint32_t swizzle_mode = 0; |
| |
| buffer = drm_intel_bo_alloc_tiled(screen->bufmgr, "swizzle test", |
| 64, 64, 4, |
| &tiling, &aligned_pitch, flags); |
| if (buffer == NULL) |
| return false; |
| |
| drm_intel_bo_get_tiling(buffer, &tiling, &swizzle_mode); |
| drm_intel_bo_unreference(buffer); |
| |
| if (swizzle_mode == I915_BIT_6_SWIZZLE_NONE) |
| return false; |
| else |
| return true; |
| } |
| |
| /** |
| * This is the driver specific part of the createNewScreen entry point. |
| * Called when using DRI2. |
| * |
| * \return the struct gl_config supported by this driver |
| */ |
| static const |
| __DRIconfig **intelInitScreen2(__DRIscreen *psp) |
| { |
| struct intel_screen *intelScreen; |
| GLenum fb_format[3]; |
| GLenum fb_type[3]; |
| unsigned int api_mask; |
| |
| static const GLenum back_buffer_modes[] = { |
| GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML |
| }; |
| uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1]; |
| int color; |
| __DRIconfig **configs = NULL; |
| |
| /* Allocate the private area */ |
| intelScreen = CALLOC(sizeof *intelScreen); |
| if (!intelScreen) { |
| fprintf(stderr, "\nERROR! Allocating private area failed\n"); |
| return false; |
| } |
| /* parse information in __driConfigOptions */ |
| driParseOptionInfo(&intelScreen->optionCache, |
| __driConfigOptions, __driNConfigOptions); |
| |
| intelScreen->driScrnPriv = psp; |
| psp->driverPrivate = (void *) intelScreen; |
| |
| if (!intel_init_bufmgr(intelScreen)) |
| return false; |
| |
| intelScreen->deviceID = drm_intel_bufmgr_gem_get_devid(intelScreen->bufmgr); |
| |
| intelScreen->kernel_has_gen7_sol_reset = |
| intel_get_boolean(intelScreen->driScrnPriv, |
| I915_PARAM_HAS_GEN7_SOL_RESET); |
| |
| if (IS_GEN7(intelScreen->deviceID)) { |
| intelScreen->gen = 7; |
| } else if (IS_GEN6(intelScreen->deviceID)) { |
| intelScreen->gen = 6; |
| } else if (IS_GEN5(intelScreen->deviceID)) { |
| intelScreen->gen = 5; |
| } else if (IS_965(intelScreen->deviceID)) { |
| intelScreen->gen = 4; |
| } else if (IS_9XX(intelScreen->deviceID)) { |
| intelScreen->gen = 3; |
| } else { |
| intelScreen->gen = 2; |
| } |
| |
| intelScreen->hw_has_separate_stencil = intelScreen->gen >= 6; |
| intelScreen->hw_must_use_separate_stencil = intelScreen->gen >= 7; |
| intelScreen->dri2_has_hiz = INTEL_DRI2_HAS_HIZ_UNKNOWN; |
| |
| #if defined(I915_PARAM_HAS_LLC) |
| intelScreen->hw_has_llc = |
| intel_get_boolean(intelScreen->driScrnPriv, |
| I915_PARAM_HAS_LLC); |
| #else |
| intelScreen->hw_has_llc = intelScreen->gen >= 6; |
| #endif |
| |
| intel_override_separate_stencil(intelScreen); |
| |
| api_mask = (1 << __DRI_API_OPENGL); |
| #if FEATURE_ES1 |
| api_mask |= (1 << __DRI_API_GLES); |
| #endif |
| #if FEATURE_ES2 |
| api_mask |= (1 << __DRI_API_GLES2); |
| #endif |
| |
| if (IS_9XX(intelScreen->deviceID) || IS_965(intelScreen->deviceID)) |
| psp->api_mask = api_mask; |
| |
| intelScreen->hw_has_swizzling = intel_detect_swizzling(intelScreen); |
| |
| psp->extensions = intelScreenExtensions; |
| |
| msaa_samples_array[0] = 0; |
| |
| fb_format[0] = GL_RGB; |
| fb_type[0] = GL_UNSIGNED_SHORT_5_6_5; |
| |
| fb_format[1] = GL_BGR; |
| fb_type[1] = GL_UNSIGNED_INT_8_8_8_8_REV; |
| |
| fb_format[2] = GL_BGRA; |
| fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV; |
| |
| depth_bits[0] = 0; |
| stencil_bits[0] = 0; |
| |
| /* Generate a rich set of useful configs that do not include an |
| * accumulation buffer. |
| */ |
| for (color = 0; color < ARRAY_SIZE(fb_format); color++) { |
| __DRIconfig **new_configs; |
| int depth_factor; |
| |
| /* Starting with DRI2 protocol version 1.1 we can request a depth/stencil |
| * buffer that has a diffferent number of bits per pixel than the color |
| * buffer. This isn't yet supported here. |
| */ |
| if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) { |
| depth_bits[1] = 16; |
| stencil_bits[1] = 0; |
| } else { |
| depth_bits[1] = 24; |
| stencil_bits[1] = 8; |
| } |
| |
| depth_factor = 2; |
| |
| new_configs = driCreateConfigs(fb_format[color], fb_type[color], |
| depth_bits, |
| stencil_bits, |
| depth_factor, |
| back_buffer_modes, |
| ARRAY_SIZE(back_buffer_modes), |
| msaa_samples_array, |
| ARRAY_SIZE(msaa_samples_array), |
| false); |
| if (configs == NULL) |
| configs = new_configs; |
| else |
| configs = driConcatConfigs(configs, new_configs); |
| } |
| |
| /* Generate the minimum possible set of configs that include an |
| * accumulation buffer. |
| */ |
| for (color = 0; color < ARRAY_SIZE(fb_format); color++) { |
| __DRIconfig **new_configs; |
| |
| if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) { |
| depth_bits[0] = 16; |
| stencil_bits[0] = 0; |
| } else { |
| depth_bits[0] = 24; |
| stencil_bits[0] = 8; |
| } |
| |
| new_configs = driCreateConfigs(fb_format[color], fb_type[color], |
| depth_bits, stencil_bits, 1, |
| back_buffer_modes + 1, 1, |
| msaa_samples_array, 1, |
| true); |
| if (configs == NULL) |
| configs = new_configs; |
| else |
| configs = driConcatConfigs(configs, new_configs); |
| } |
| |
| if (configs == NULL) { |
| fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__, |
| __LINE__); |
| return NULL; |
| } |
| |
| return (const __DRIconfig **)configs; |
| } |
| |
| struct intel_buffer { |
| __DRIbuffer base; |
| struct intel_region *region; |
| }; |
| |
| /** |
| * \brief Get tiling format for a DRI buffer. |
| * |
| * \param attachment is the buffer's attachmet point, such as |
| * __DRI_BUFFER_DEPTH. |
| * \param out_tiling is the returned tiling format for buffer. |
| * \return false if attachment is unrecognized or is incompatible with screen. |
| */ |
| static bool |
| intel_get_dri_buffer_tiling(struct intel_screen *screen, |
| uint32_t attachment, |
| uint32_t *out_tiling) |
| { |
| if (screen->gen < 4) { |
| *out_tiling = I915_TILING_X; |
| return true; |
| } |
| |
| switch (attachment) { |
| case __DRI_BUFFER_DEPTH: |
| case __DRI_BUFFER_DEPTH_STENCIL: |
| case __DRI_BUFFER_HIZ: |
| *out_tiling = I915_TILING_Y; |
| return true; |
| case __DRI_BUFFER_ACCUM: |
| case __DRI_BUFFER_FRONT_LEFT: |
| case __DRI_BUFFER_FRONT_RIGHT: |
| case __DRI_BUFFER_BACK_LEFT: |
| case __DRI_BUFFER_BACK_RIGHT: |
| case __DRI_BUFFER_FAKE_FRONT_LEFT: |
| case __DRI_BUFFER_FAKE_FRONT_RIGHT: |
| *out_tiling = I915_TILING_X; |
| return true; |
| case __DRI_BUFFER_STENCIL: |
| /* The stencil buffer is W tiled. However, we request from the kernel |
| * a non-tiled buffer because the GTT is incapable of W fencing. |
| */ |
| *out_tiling = I915_TILING_NONE; |
| return true; |
| default: |
| if(unlikely(INTEL_DEBUG & DEBUG_DRI)) { |
| fprintf(stderr, "error: %s: unrecognized DRI buffer attachment 0x%x\n", |
| __FUNCTION__, attachment); |
| } |
| return false; |
| } |
| } |
| |
| static __DRIbuffer * |
| intelAllocateBuffer(__DRIscreen *screen, |
| unsigned attachment, unsigned format, |
| int width, int height) |
| { |
| struct intel_buffer *intelBuffer; |
| struct intel_screen *intelScreen = screen->driverPrivate; |
| |
| uint32_t tiling; |
| uint32_t region_width; |
| uint32_t region_height; |
| uint32_t region_cpp; |
| |
| bool ok = true; |
| |
| ok = intel_get_dri_buffer_tiling(intelScreen, attachment, &tiling); |
| if (!ok) |
| return NULL; |
| |
| intelBuffer = CALLOC(sizeof *intelBuffer); |
| if (intelBuffer == NULL) |
| return NULL; |
| |
| if (attachment == __DRI_BUFFER_STENCIL) { |
| /* The stencil buffer has quirky pitch requirements. From Vol 2a, |
| * 11.5.6.2.1 3DSTATE_STENCIL_BUFFER, field "Surface Pitch": |
| * The pitch must be set to 2x the value computed based on width, as |
| * the stencil buffer is stored with two rows interleaved. |
| * To accomplish this, we resort to the nasty hack of doubling the |
| * region's cpp and halving its height. |
| */ |
| region_width = ALIGN(width, 64); |
| region_height = ALIGN(ALIGN(height, 2) / 2, 64); |
| region_cpp = format / 4; |
| } else { |
| region_width = width; |
| region_height = height; |
| region_cpp = format / 8; |
| } |
| |
| intelBuffer->region = intel_region_alloc(intelScreen, |
| tiling, |
| region_cpp, |
| region_width, |
| region_height, |
| true); |
| |
| if (intelBuffer->region == NULL) { |
| FREE(intelBuffer); |
| return NULL; |
| } |
| |
| intel_region_flink(intelBuffer->region, &intelBuffer->base.name); |
| |
| intelBuffer->base.attachment = attachment; |
| intelBuffer->base.cpp = intelBuffer->region->cpp; |
| intelBuffer->base.pitch = |
| intelBuffer->region->pitch * intelBuffer->region->cpp; |
| |
| return &intelBuffer->base; |
| } |
| |
| static void |
| intelReleaseBuffer(__DRIscreen *screen, __DRIbuffer *buffer) |
| { |
| struct intel_buffer *intelBuffer = (struct intel_buffer *) buffer; |
| |
| intel_region_release(&intelBuffer->region); |
| free(intelBuffer); |
| } |
| |
| |
| const struct __DriverAPIRec driDriverAPI = { |
| .InitScreen = intelInitScreen2, |
| .DestroyScreen = intelDestroyScreen, |
| .CreateContext = intelCreateContext, |
| .DestroyContext = intelDestroyContext, |
| .CreateBuffer = intelCreateBuffer, |
| .DestroyBuffer = intelDestroyBuffer, |
| .MakeCurrent = intelMakeCurrent, |
| .UnbindContext = intelUnbindContext, |
| .AllocateBuffer = intelAllocateBuffer, |
| .ReleaseBuffer = intelReleaseBuffer |
| }; |
| |
| /* This is the table of extensions that the loader will dlsym() for. */ |
| PUBLIC const __DRIextension *__driDriverExtensions[] = { |
| &driCoreExtension.base, |
| &driDRI2Extension.base, |
| NULL |
| }; |