diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_screen.c')
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_screen.c | 753 |
1 files changed, 753 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c new file mode 100644 index 0000000000..1de1ac49ea --- /dev/null +++ b/src/mesa/drivers/dri/intel/intel_screen.c @@ -0,0 +1,753 @@ +/************************************************************************** + * + * 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 "glheader.h" +#include "context.h" +#include "framebuffer.h" +#include "matrix.h" +#include "renderbuffer.h" +#include "simple_list.h" +#include "utils.h" +#include "vblank.h" +#include "xmlpool.h" + + +#include "intel_screen.h" + +#include "intel_buffers.h" +#include "intel_tex.h" +#include "intel_span.h" +#include "intel_fbo.h" +#include "intel_chipset.h" + +#include "i915_drm.h" +#include "i830_dri.h" +#include "intel_regions.h" +#include "intel_batchbuffer.h" +#include "intel_bufmgr.h" + +PUBLIC const char __driConfigOptions[] = + DRI_CONF_BEGIN + DRI_CONF_SECTION_PERFORMANCE + DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS) + 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_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_SECTION_END +DRI_CONF_END; + +const GLuint __driNConfigOptions = 6; + +#ifdef USE_NEW_INTERFACE +static PFNGLXCREATECONTEXTMODES create_context_modes = NULL; +#endif /*USE_NEW_INTERFACE */ + +/** + * Map all the memory regions described by the screen. + * \return GL_TRUE if success, GL_FALSE if error. + */ +GLboolean +intelMapScreenRegions(__DRIscreenPrivate * sPriv) +{ + intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private; + + if (0) + _mesa_printf("TEX 0x%08x ", intelScreen->tex.handle); + if (intelScreen->tex.size != 0) { + if (drmMap(sPriv->fd, + intelScreen->tex.handle, + intelScreen->tex.size, + (drmAddress *) & intelScreen->tex.map) != 0) { + intelUnmapScreenRegions(intelScreen); + return GL_FALSE; + } + } + + return GL_TRUE; +} + +void +intelUnmapScreenRegions(intelScreenPrivate * intelScreen) +{ + if (intelScreen->tex.map) { + drmUnmap(intelScreen->tex.map, intelScreen->tex.size); + intelScreen->tex.map = NULL; + } +} + + +static void +intelPrintDRIInfo(intelScreenPrivate * intelScreen, + __DRIscreenPrivate * sPriv, I830DRIPtr gDRIPriv) +{ + fprintf(stderr, "*** Front size: 0x%x offset: 0x%x pitch: %d\n", + intelScreen->front.size, intelScreen->front.offset, + intelScreen->pitch); + fprintf(stderr, "*** Back size: 0x%x offset: 0x%x pitch: %d\n", + intelScreen->back.size, intelScreen->back.offset, + intelScreen->pitch); + fprintf(stderr, "*** Depth size: 0x%x offset: 0x%x pitch: %d\n", + intelScreen->depth.size, intelScreen->depth.offset, + intelScreen->pitch); + fprintf(stderr, "*** Texture size: 0x%x offset: 0x%x\n", + intelScreen->tex.size, intelScreen->tex.offset); + fprintf(stderr, "*** Memory : 0x%x\n", gDRIPriv->mem); +} + + +static void +intelPrintSAREA(const struct drm_i915_sarea * sarea) +{ + fprintf(stderr, "SAREA: sarea width %d height %d\n", sarea->width, + sarea->height); + fprintf(stderr, "SAREA: pitch: %d\n", sarea->pitch); + fprintf(stderr, + "SAREA: front offset: 0x%08x size: 0x%x handle: 0x%x tiled: %d\n", + sarea->front_offset, sarea->front_size, + (unsigned) sarea->front_handle, sarea->front_tiled); + fprintf(stderr, + "SAREA: back offset: 0x%08x size: 0x%x handle: 0x%x tiled: %d\n", + sarea->back_offset, sarea->back_size, + (unsigned) sarea->back_handle, sarea->back_tiled); + fprintf(stderr, "SAREA: depth offset: 0x%08x size: 0x%x handle: 0x%x tiled: %d\n", + sarea->depth_offset, sarea->depth_size, + (unsigned) sarea->depth_handle, sarea->depth_tiled); + fprintf(stderr, "SAREA: tex offset: 0x%08x size: 0x%x handle: 0x%x\n", + sarea->tex_offset, sarea->tex_size, (unsigned) sarea->tex_handle); +} + + +/** + * A number of the screen parameters are obtained/computed from + * information in the SAREA. This function updates those parameters. + */ +void +intelUpdateScreenFromSAREA(intelScreenPrivate * intelScreen, + struct drm_i915_sarea * sarea) +{ + intelScreen->width = sarea->width; + intelScreen->height = sarea->height; + intelScreen->pitch = sarea->pitch; + + intelScreen->front.offset = sarea->front_offset; + intelScreen->front.handle = sarea->front_handle; + intelScreen->front.size = sarea->front_size; + intelScreen->front.tiled = sarea->front_tiled; + + intelScreen->back.offset = sarea->back_offset; + intelScreen->back.handle = sarea->back_handle; + intelScreen->back.size = sarea->back_size; + intelScreen->back.tiled = sarea->back_tiled; + + if (intelScreen->driScrnPriv->ddx_version.minor >= 8) { + intelScreen->third.offset = sarea->third_offset; + intelScreen->third.handle = sarea->third_handle; + intelScreen->third.size = sarea->third_size; + intelScreen->third.tiled = sarea->third_tiled; + } + + intelScreen->depth.offset = sarea->depth_offset; + intelScreen->depth.handle = sarea->depth_handle; + intelScreen->depth.size = sarea->depth_size; + intelScreen->depth.tiled = sarea->depth_tiled; + + if (intelScreen->driScrnPriv->ddx_version.minor >= 9) { + intelScreen->front.bo_handle = sarea->front_bo_handle; + intelScreen->back.bo_handle = sarea->back_bo_handle; + intelScreen->third.bo_handle = sarea->third_bo_handle; + intelScreen->depth.bo_handle = sarea->depth_bo_handle; + } else { + intelScreen->front.bo_handle = -1; + intelScreen->back.bo_handle = -1; + intelScreen->third.bo_handle = -1; + intelScreen->depth.bo_handle = -1; + } + + intelScreen->tex.offset = sarea->tex_offset; + intelScreen->logTextureGranularity = sarea->log_tex_granularity; + intelScreen->tex.handle = sarea->tex_handle; + intelScreen->tex.size = sarea->tex_size; + + if (0) + intelPrintSAREA(sarea); +} + +static const __DRItexOffsetExtension intelTexOffsetExtension = { + { __DRI_TEX_OFFSET }, + intelSetTexOffset, +}; + +static const __DRItexBufferExtension intelTexBufferExtension = { + { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION }, + intelSetTexBuffer, +}; + +static const __DRIextension *intelScreenExtensions[] = { + &driReadDrawableExtension, + &driCopySubBufferExtension.base, + &driSwapControlExtension.base, + &driFrameTrackingExtension.base, + &driMediaStreamCounterExtension.base, + &intelTexOffsetExtension.base, + &intelTexBufferExtension.base, + NULL +}; + +static GLboolean +intel_get_param(__DRIscreenPrivate *psp, int param, int *value) +{ + int ret; + struct drm_i915_getparam gp; + + gp.param = param; + gp.value = value; + + ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp)); + if (ret) { + fprintf(stderr, "drm_i915_getparam: %d\n", ret); + return GL_FALSE; + } + + return GL_TRUE; +} + +static GLboolean intelInitDriver(__DRIscreenPrivate *sPriv) +{ + intelScreenPrivate *intelScreen; + I830DRIPtr gDRIPriv = (I830DRIPtr) sPriv->pDevPriv; + struct drm_i915_sarea *sarea; + + if (sPriv->devPrivSize != sizeof(I830DRIRec)) { + fprintf(stderr, + "\nERROR! sizeof(I830DRIRec) does not match passed size from device driver\n"); + return GL_FALSE; + } + + /* Allocate the private area */ + intelScreen = (intelScreenPrivate *) CALLOC(sizeof(intelScreenPrivate)); + if (!intelScreen) { + fprintf(stderr, "\nERROR! Allocating private area failed\n"); + return GL_FALSE; + } + /* parse information in __driConfigOptions */ + driParseOptionInfo(&intelScreen->optionCache, + __driConfigOptions, __driNConfigOptions); + + intelScreen->driScrnPriv = sPriv; + sPriv->private = (void *) intelScreen; + sarea = (struct drm_i915_sarea *) + (((GLubyte *) sPriv->pSAREA) + gDRIPriv->sarea_priv_offset); + intelScreen->sarea = sarea; + + intelScreen->deviceID = gDRIPriv->deviceID; + + intelUpdateScreenFromSAREA(intelScreen, sarea); + + if (!intelMapScreenRegions(sPriv)) { + fprintf(stderr, "\nERROR! mapping regions\n"); + _mesa_free(intelScreen); + sPriv->private = NULL; + return GL_FALSE; + } + + if (0) + intelPrintDRIInfo(intelScreen, sPriv, gDRIPriv); + + intelScreen->drmMinor = sPriv->drm_version.minor; + + /* Determine if IRQs are active? */ + if (!intel_get_param(sPriv, I915_PARAM_IRQ_ACTIVE, + &intelScreen->irq_active)) + return GL_FALSE; + + /* Determine if batchbuffers are allowed */ + if (!intel_get_param(sPriv, I915_PARAM_ALLOW_BATCHBUFFER, + &intelScreen->allow_batchbuffer)) + return GL_FALSE; + + sPriv->extensions = intelScreenExtensions; + + return GL_TRUE; +} + + +static void +intelDestroyScreen(__DRIscreenPrivate * sPriv) +{ + intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private; + + intelUnmapScreenRegions(intelScreen); + + FREE(intelScreen); + sPriv->private = NULL; +} + + +/** + * This is called when we need to set up GL rendering to a new X window. + */ +static GLboolean +intelCreateBuffer(__DRIscreenPrivate * driScrnPriv, + __DRIdrawablePrivate * driDrawPriv, + const __GLcontextModes * mesaVis, GLboolean isPixmap) +{ + intelScreenPrivate *screen = (intelScreenPrivate *) driScrnPriv->private; + + if (isPixmap) { + return GL_FALSE; /* not implemented */ + } + else { + GLboolean swStencil = (mesaVis->stencilBits > 0 && + mesaVis->depthBits != 24); + GLenum rgbFormat = (mesaVis->redBits == 5 ? GL_RGB5 : GL_RGBA8); + + struct intel_framebuffer *intel_fb = CALLOC_STRUCT(intel_framebuffer); + + if (!intel_fb) + return GL_FALSE; + + _mesa_initialize_framebuffer(&intel_fb->Base, mesaVis); + + /* setup the hardware-based renderbuffers */ + intel_fb->color_rb[0] = intel_create_renderbuffer(rgbFormat); + _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_FRONT_LEFT, + &intel_fb->color_rb[0]->Base); + + if (mesaVis->doubleBufferMode) { + intel_fb->color_rb[1] = intel_create_renderbuffer(rgbFormat); + + _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_BACK_LEFT, + &intel_fb->color_rb[1]->Base); + + if (screen->third.handle) { + struct gl_renderbuffer *tmp_rb = NULL; + + intel_fb->color_rb[2] = intel_create_renderbuffer(rgbFormat); + _mesa_reference_renderbuffer(&tmp_rb, &intel_fb->color_rb[2]->Base); + } + } + + if (mesaVis->depthBits == 24) { + if (mesaVis->stencilBits == 8) { + /* combined depth/stencil buffer */ + struct intel_renderbuffer *depthStencilRb + = intel_create_renderbuffer(GL_DEPTH24_STENCIL8_EXT); + /* note: bind RB to two attachment points */ + _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH, + &depthStencilRb->Base); + _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_STENCIL, + &depthStencilRb->Base); + } else { + struct intel_renderbuffer *depthRb + = intel_create_renderbuffer(GL_DEPTH_COMPONENT24); + _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH, + &depthRb->Base); + } + } + else if (mesaVis->depthBits == 16) { + /* just 16-bit depth buffer, no hw stencil */ + struct intel_renderbuffer *depthRb + = intel_create_renderbuffer(GL_DEPTH_COMPONENT16); + _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH, &depthRb->Base); + } + + /* now add any/all software-based renderbuffers we may need */ + _mesa_add_soft_renderbuffers(&intel_fb->Base, + GL_FALSE, /* never sw color */ + GL_FALSE, /* never sw depth */ + swStencil, mesaVis->accumRedBits > 0, + GL_FALSE, /* never sw alpha */ + GL_FALSE /* never sw aux */ ); + driDrawPriv->driverPrivate = (void *) intel_fb; + + return GL_TRUE; + } +} + +static void +intelDestroyBuffer(__DRIdrawablePrivate * driDrawPriv) +{ + _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate))); +} + + +/** + * Get information about previous buffer swaps. + */ +static int +intelGetSwapInfo(__DRIdrawablePrivate * dPriv, __DRIswapInfo * sInfo) +{ + struct intel_framebuffer *intel_fb; + + if ((dPriv == NULL) || (dPriv->driverPrivate == NULL) + || (sInfo == NULL)) { + return -1; + } + + intel_fb = dPriv->driverPrivate; + sInfo->swap_count = intel_fb->swap_count; + sInfo->swap_ust = intel_fb->swap_ust; + sInfo->swap_missed_count = intel_fb->swap_missed_count; + + sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0) + ? driCalculateSwapUsage(dPriv, 0, intel_fb->swap_missed_ust) + : 0.0; + + return 0; +} + + +/* There are probably better ways to do this, such as an + * init-designated function to register chipids and createcontext + * functions. + */ +extern GLboolean i830CreateContext(const __GLcontextModes * mesaVis, + __DRIcontextPrivate * driContextPriv, + void *sharedContextPrivate); + +extern GLboolean i915CreateContext(const __GLcontextModes * mesaVis, + __DRIcontextPrivate * driContextPriv, + void *sharedContextPrivate); +extern GLboolean brwCreateContext(const __GLcontextModes * mesaVis, + __DRIcontextPrivate * driContextPriv, + void *sharedContextPrivate); + +static GLboolean +intelCreateContext(const __GLcontextModes * mesaVis, + __DRIcontextPrivate * driContextPriv, + void *sharedContextPrivate) +{ + __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv; + intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private; + +#ifdef I915 + if (IS_9XX(intelScreen->deviceID)) { + if (!IS_965(intelScreen->deviceID)) { + return i915CreateContext(mesaVis, driContextPriv, + sharedContextPrivate); + } + } else { + return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate); + } +#else + if (IS_965(intelScreen->deviceID)) + return brwCreateContext(mesaVis, driContextPriv, sharedContextPrivate); +#endif + fprintf(stderr, "Unrecognized deviceID %x\n", intelScreen->deviceID); + return GL_FALSE; +} + + +static __DRIconfig ** +intelFillInModes(__DRIscreenPrivate *psp, + unsigned pixel_bits, unsigned depth_bits, + unsigned stencil_bits, GLboolean have_back_buffer) +{ + __DRIconfig **configs; + __GLcontextModes *m; + unsigned depth_buffer_factor; + unsigned back_buffer_factor; + GLenum fb_format; + GLenum fb_type; + int i; + + /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't + * support pageflipping at all. + */ + static const GLenum back_buffer_modes[] = { + GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML + }; + + u_int8_t depth_bits_array[3]; + u_int8_t stencil_bits_array[3]; + + depth_bits_array[0] = 0; + depth_bits_array[1] = depth_bits; + depth_bits_array[2] = depth_bits; + + /* Just like with the accumulation buffer, always provide some modes + * with a stencil buffer. It will be a sw fallback, but some apps won't + * care about that. + */ + stencil_bits_array[0] = 0; + stencil_bits_array[1] = 0; + if (depth_bits == 24) + stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits; + + stencil_bits_array[2] = (stencil_bits == 0) ? 8 : stencil_bits; + + depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 3 : 1; + back_buffer_factor = (have_back_buffer) ? 3 : 1; + + if (pixel_bits == 16) { + fb_format = GL_RGB; + fb_type = GL_UNSIGNED_SHORT_5_6_5; + } + else { + fb_format = GL_BGRA; + fb_type = GL_UNSIGNED_INT_8_8_8_8_REV; + } + + configs = driCreateConfigs(fb_format, fb_type, + depth_bits_array, stencil_bits_array, + depth_buffer_factor, back_buffer_modes, + back_buffer_factor); + if (configs == NULL) { + fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__, + __LINE__); + return NULL; + } + + /* Mark the visual as slow if there are "fake" stencil bits. + */ + for (i = 0; configs[i]; i++) { + m = &configs[i]->modes; + if ((m->stencilBits != 0) && (m->stencilBits != stencil_bits)) { + m->visualRating = GLX_SLOW_CONFIG; + } + } + + return configs; +} + +static GLboolean +intel_init_bufmgr(intelScreenPrivate *intelScreen) +{ + GLboolean gem_disable = getenv("INTEL_NO_GEM") != NULL; + int gem_kernel = 0; + GLboolean gem_supported; + struct drm_i915_getparam gp; + __DRIscreenPrivate *spriv = intelScreen->driScrnPriv; + + intelScreen->no_hw = getenv("INTEL_NO_HW") != NULL; + + gp.param = I915_PARAM_HAS_GEM; + gp.value = &gem_kernel; + + (void) drmCommandWriteRead(spriv->fd, DRM_I915_GETPARAM, &gp, sizeof(gp)); + + /* If we've got a new enough DDX that's initializing GEM and giving us + * object handles for the shared buffers, use that. + */ + intelScreen->ttm = GL_FALSE; + if (intelScreen->driScrnPriv->dri2.enabled) + gem_supported = GL_TRUE; + else if (intelScreen->driScrnPriv->ddx_version.minor >= 9 && + gem_kernel && + intelScreen->front.bo_handle != -1) + gem_supported = GL_TRUE; + else + gem_supported = GL_FALSE; + + if (!gem_disable && gem_supported) { + intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ); + if (intelScreen->bufmgr != NULL) + intelScreen->ttm = GL_TRUE; + } + /* Otherwise, use the classic buffer manager. */ + if (intelScreen->bufmgr == NULL) { + if (gem_disable) { + fprintf(stderr, "GEM disabled. Using classic.\n"); + } else { + fprintf(stderr, "Failed to initialize GEM. " + "Falling back to classic.\n"); + } + + if (intelScreen->tex.size == 0) { + fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n", + __func__, __LINE__); + return GL_FALSE; + } + + intelScreen->bufmgr = + intel_bufmgr_fake_init(spriv->fd, + intelScreen->tex.offset, + intelScreen->tex.map, + intelScreen->tex.size, + (unsigned int * volatile) + &intelScreen->sarea->last_dispatch); + } + + /* XXX bufmgr should be per-screen, not per-context */ + intelScreen->ttm = intelScreen->ttm; + + return GL_TRUE; +} + +/** + * This is the driver specific part of the createNewScreen entry point. + * Called when using legacy DRI. + * + * \todo maybe fold this into intelInitDriver + * + * \return the __GLcontextModes supported by this driver + */ +static const __DRIconfig **intelInitScreen(__DRIscreenPrivate *psp) +{ + intelScreenPrivate *intelScreen; +#ifdef I915 + static const __DRIversion ddx_expected = { 1, 5, 0 }; +#else + static const __DRIversion ddx_expected = { 1, 6, 0 }; +#endif + static const __DRIversion dri_expected = { 4, 0, 0 }; + static const __DRIversion drm_expected = { 1, 5, 0 }; + I830DRIPtr dri_priv = (I830DRIPtr) psp->pDevPriv; + + if (!driCheckDriDdxDrmVersions2("i915", + &psp->dri_version, &dri_expected, + &psp->ddx_version, &ddx_expected, + &psp->drm_version, &drm_expected)) { + return NULL; + } + + /* Calling driInitExtensions here, with a NULL context pointer, + * does not actually enable the extensions. It just makes sure + * that all the dispatch offsets for all the extensions that + * *might* be enables are known. This is needed because the + * dispatch offsets need to be known when _mesa_context_create is + * called, but we can't enable the extensions until we have a + * context pointer. + * + * Hello chicken. Hello egg. How are you two today? + */ + intelInitExtensions(NULL, GL_TRUE); + + if (!intelInitDriver(psp)) + return NULL; + + psp->extensions = intelScreenExtensions; + + intelScreen = psp->private; + if (!intel_init_bufmgr(intelScreen)) + return GL_FALSE; + + return (const __DRIconfig **) + intelFillInModes(psp, dri_priv->cpp * 8, + (dri_priv->cpp == 2) ? 16 : 24, + (dri_priv->cpp == 2) ? 0 : 8, 1); +} + +struct intel_context *intelScreenContext(intelScreenPrivate *intelScreen) +{ + /* + * This should probably change to have the screen allocate a dummy + * context at screen creation. For now just use the current context. + */ + + GET_CURRENT_CONTEXT(ctx); + if (ctx == NULL) { + _mesa_problem(NULL, "No current context in intelScreenContext\n"); + return NULL; + } + return intel_context(ctx); +} + +/** + * This is the driver specific part of the createNewScreen entry point. + * Called when using DRI2. + * + * \return the __GLcontextModes supported by this driver + */ +static const +__DRIconfig **intelInitScreen2(__DRIscreenPrivate *psp) +{ + intelScreenPrivate *intelScreen; + + /* Calling driInitExtensions here, with a NULL context pointer, + * does not actually enable the extensions. It just makes sure + * that all the dispatch offsets for all the extensions that + * *might* be enables are known. This is needed because the + * dispatch offsets need to be known when _mesa_context_create is + * called, but we can't enable the extensions until we have a + * context pointer. + * + * Hello chicken. Hello egg. How are you two today? + */ + intelInitExtensions(NULL, GL_TRUE); + + /* Allocate the private area */ + intelScreen = (intelScreenPrivate *) CALLOC(sizeof(intelScreenPrivate)); + if (!intelScreen) { + fprintf(stderr, "\nERROR! Allocating private area failed\n"); + return GL_FALSE; + } + /* parse information in __driConfigOptions */ + driParseOptionInfo(&intelScreen->optionCache, + __driConfigOptions, __driNConfigOptions); + + intelScreen->driScrnPriv = psp; + psp->private = (void *) intelScreen; + + intelScreen->drmMinor = psp->drm_version.minor; + + /* Determine chipset ID */ + if (!intel_get_param(psp, I915_PARAM_CHIPSET_ID, + &intelScreen->deviceID)) + return GL_FALSE; + + if (!intel_init_bufmgr(intelScreen)) + return GL_FALSE; + + intelScreen->irq_active = 1; + psp->extensions = intelScreenExtensions; + + return driConcatConfigs(intelFillInModes(psp, 16, 16, 0, 1), + intelFillInModes(psp, 32, 24, 8, 1)); +} + +const struct __DriverAPIRec driDriverAPI = { + .InitScreen = intelInitScreen, + .DestroyScreen = intelDestroyScreen, + .CreateContext = intelCreateContext, + .DestroyContext = intelDestroyContext, + .CreateBuffer = intelCreateBuffer, + .DestroyBuffer = intelDestroyBuffer, + .SwapBuffers = intelSwapBuffers, + .MakeCurrent = intelMakeCurrent, + .UnbindContext = intelUnbindContext, + .GetSwapInfo = intelGetSwapInfo, + .GetDrawableMSC = driDrawableGetMSC32, + .WaitForMSC = driWaitForMSC32, + .CopySubBuffer = intelCopySubBuffer, + + .InitScreen2 = intelInitScreen2, +}; |