Merge {i915,i965}/intel_context.h as intel/intel_context.h

1 files changed, 1 insertions, 862 deletions

diff --git a/src/mesa/drivers/dri/i915/intel_context.c b/src/mesa/drivers/dri/i915/intel_context.c
index 1c340f79400..27a1cbb255e 100644..120000
--- a/src/mesa/drivers/dri/i915/intel_context.c
+++ b/src/mesa/drivers/dri/i915/intel_context.c
@@ -1,862 +1 @@
-/**************************************************************************
- * 
- * 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 "matrix.h"
-#include "simple_list.h"
-#include "extensions.h"
-#include "framebuffer.h"
-#include "imports.h"
-#include "points.h"
-
-#include "swrast/swrast.h"
-#include "swrast_setup/swrast_setup.h"
-#include "tnl/tnl.h"
-
-#include "tnl/t_pipeline.h"
-#include "tnl/t_vertex.h"
-
-#include "drivers/common/driverfuncs.h"
-
-#include "intel_screen.h"
-
-#include "i830_dri.h"
-
-#include "intel_chipset.h"
-#include "intel_buffers.h"
-#include "intel_tex.h"
-#include "intel_span.h"
-#include "intel_tris.h"
-#include "intel_ioctl.h"
-#include "intel_batchbuffer.h"
-#include "intel_blit.h"
-#include "intel_pixel.h"
-#include "intel_regions.h"
-#include "intel_buffer_objects.h"
-#include "intel_fbo.h"
-#include "intel_decode.h"
-#include "intel_bufmgr_ttm.h"
-
-#include "drirenderbuffer.h"
-#include "vblank.h"
-#include "utils.h"
-#include "xmlpool.h"            /* for symbolic values of enum-type options */
-#ifndef INTEL_DEBUG
-int INTEL_DEBUG = (0);
-#endif
-
-#define need_GL_ARB_multisample
-#define need_GL_ARB_point_parameters
-#define need_GL_ARB_texture_compression
-#define need_GL_ARB_vertex_buffer_object
-#define need_GL_ARB_vertex_program
-#define need_GL_ARB_window_pos
-#define need_GL_EXT_blend_color
-#define need_GL_EXT_blend_equation_separate
-#define need_GL_EXT_blend_func_separate
-#define need_GL_EXT_blend_minmax
-#define need_GL_EXT_cull_vertex
-#define need_GL_EXT_fog_coord
-#define need_GL_EXT_framebuffer_object
-#define need_GL_EXT_multi_draw_arrays
-#define need_GL_EXT_secondary_color
-#define need_GL_NV_vertex_program
-#include "extension_helper.h"
-
-
-#define DRIVER_DATE                     "20061102"
-
-_glthread_Mutex lockMutex;
-static GLboolean lockMutexInit = GL_FALSE;
-
-
-static const GLubyte *
-intelGetString(GLcontext * ctx, GLenum name)
-{
-   const char *chipset;
-   static char buffer[128];
-
-   switch (name) {
-   case GL_VENDOR:
-      return (GLubyte *) "Tungsten Graphics, Inc";
-      break;
-
-   case GL_RENDERER:
-      switch (intel_context(ctx)->intelScreen->deviceID) {
-      case PCI_CHIP_845_G:
-         chipset = "Intel(R) 845G";
-         break;
-      case PCI_CHIP_I830_M:
-         chipset = "Intel(R) 830M";
-         break;
-      case PCI_CHIP_I855_GM:
-         chipset = "Intel(R) 852GM/855GM";
-         break;
-      case PCI_CHIP_I865_G:
-         chipset = "Intel(R) 865G";
-         break;
-      case PCI_CHIP_I915_G:
-         chipset = "Intel(R) 915G";
-         break;
-      case PCI_CHIP_E7221_G:
-	 chipset = "Intel (R) E7221G (i915)";
-	 break;
-      case PCI_CHIP_I915_GM:
-         chipset = "Intel(R) 915GM";
-         break;
-      case PCI_CHIP_I945_G:
-         chipset = "Intel(R) 945G";
-         break;
-      case PCI_CHIP_I945_GM:
-         chipset = "Intel(R) 945GM";
-         break;
-      case PCI_CHIP_I945_GME:
-         chipset = "Intel(R) 945GME";
-         break;
-      case PCI_CHIP_G33_G:
-	 chipset = "Intel(R) G33";
-	 break;
-      case PCI_CHIP_Q35_G:
-	 chipset = "Intel(R) Q35";
-	 break;
-      case PCI_CHIP_Q33_G:
-	 chipset = "Intel(R) Q33";
-	 break;
-      default:
-         chipset = "Unknown Intel Chipset";
-         break;
-      }
-
-      (void) driGetRendererString(buffer, chipset, DRIVER_DATE, 0);
-      return (GLubyte *) buffer;
-
-   default:
-      return NULL;
-   }
-}
-
-
-/**
- * Extension strings exported by the intel driver.
- */
-const struct dri_extension card_extensions[] = {
-   {"GL_ARB_multisample", GL_ARB_multisample_functions},
-   {"GL_ARB_multitexture", NULL},
-   {"GL_ARB_point_parameters", GL_ARB_point_parameters_functions},
-   {"GL_ARB_texture_border_clamp", NULL},
-   {"GL_ARB_texture_compression", GL_ARB_texture_compression_functions},
-   {"GL_ARB_texture_cube_map", NULL},
-   {"GL_ARB_texture_env_add", NULL},
-   {"GL_ARB_texture_env_combine", NULL},
-   {"GL_ARB_texture_env_dot3", NULL},
-   {"GL_ARB_texture_mirrored_repeat", NULL},
-   {"GL_ARB_texture_rectangle", NULL},
-   {"GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions},
-   {"GL_ARB_vertex_program", GL_ARB_vertex_program_functions},
-   {"GL_ARB_window_pos", GL_ARB_window_pos_functions},
-   {"GL_EXT_blend_color", GL_EXT_blend_color_functions},
-   {"GL_EXT_blend_equation_separate",
-    GL_EXT_blend_equation_separate_functions},
-   {"GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions},
-   {"GL_EXT_blend_minmax", GL_EXT_blend_minmax_functions},
-   {"GL_EXT_blend_subtract", NULL},
-   {"GL_EXT_cull_vertex", GL_EXT_cull_vertex_functions},
-   {"GL_EXT_fog_coord", GL_EXT_fog_coord_functions},
-   {"GL_EXT_multi_draw_arrays", GL_EXT_multi_draw_arrays_functions},
-#if 1                           /* XXX FBO temporary? */
-   {"GL_EXT_packed_depth_stencil", NULL},
-#endif
-   {"GL_EXT_secondary_color", GL_EXT_secondary_color_functions},
-   {"GL_EXT_stencil_wrap", NULL},
-   {"GL_EXT_texture_edge_clamp", NULL},
-   {"GL_EXT_texture_env_combine", NULL},
-   {"GL_EXT_texture_env_dot3", NULL},
-   {"GL_EXT_texture_filter_anisotropic", NULL},
-   {"GL_EXT_texture_lod_bias", NULL},
-   {"GL_3DFX_texture_compression_FXT1", NULL},
-   {"GL_APPLE_client_storage", NULL},
-   {"GL_MESA_pack_invert", NULL},
-   {"GL_MESA_ycbcr_texture", NULL},
-   {"GL_NV_blend_square", NULL},
-   {"GL_NV_vertex_program", GL_NV_vertex_program_functions},
-   {"GL_NV_vertex_program1_1", NULL},
-   { "GL_SGIS_generate_mipmap", NULL },
-   {NULL, NULL}
-};
-
-const struct dri_extension ttm_extensions[] = {
-   {"GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions},
-   {"GL_ARB_pixel_buffer_object", NULL},
-   {NULL, NULL}
-};
-
-extern const struct tnl_pipeline_stage _intel_render_stage;
-
-static const struct tnl_pipeline_stage *intel_pipeline[] = {
-   &_tnl_vertex_transform_stage,
-   &_tnl_vertex_cull_stage,
-   &_tnl_normal_transform_stage,
-   &_tnl_lighting_stage,
-   &_tnl_fog_coordinate_stage,
-   &_tnl_texgen_stage,
-   &_tnl_texture_transform_stage,
-   &_tnl_point_attenuation_stage,
-   &_tnl_vertex_program_stage,
-#if 1
-   &_intel_render_stage,        /* ADD: unclipped rastersetup-to-dma */
-#endif
-   &_tnl_render_stage,
-   0,
-};
-
-
-static const struct dri_debug_control debug_control[] = {
-   {"tex", DEBUG_TEXTURE},
-   {"state", DEBUG_STATE},
-   {"ioctl", DEBUG_IOCTL},
-   {"blit", DEBUG_BLIT},
-   {"mip", DEBUG_MIPTREE},
-   {"fall", DEBUG_FALLBACKS},
-   {"verb", DEBUG_VERBOSE},
-   {"bat", DEBUG_BATCH},
-   {"pix", DEBUG_PIXEL},
-   {"buf", DEBUG_BUFMGR},
-   {"reg", DEBUG_REGION},
-   {"fbo", DEBUG_FBO},
-   {"lock", DEBUG_LOCK},
-   {"sync", DEBUG_SYNC},
-   {NULL, 0}
-};
-
-
-static void
-intelInvalidateState(GLcontext * ctx, GLuint new_state)
-{
-   _swrast_InvalidateState(ctx, new_state);
-   _swsetup_InvalidateState(ctx, new_state);
-   _vbo_InvalidateState(ctx, new_state);
-   _tnl_InvalidateState(ctx, new_state);
-   _tnl_invalidate_vertex_state(ctx, new_state);
-   intel_context(ctx)->NewGLState |= new_state;
-}
-
-
-void
-intelFlush(GLcontext * ctx)
-{
-   struct intel_context *intel = intel_context(ctx);
-
-   if (intel->Fallback)
-      _swrast_flush(ctx);
-
-   INTEL_FIREVERTICES(intel);
-
-   if (intel->batch->map != intel->batch->ptr)
-      intel_batchbuffer_flush(intel->batch);
-
-   /* XXX: Need to do an MI_FLUSH here.
-    */
-}
-
-void
-intelFinish(GLcontext * ctx)
-{
-   struct intel_context *intel = intel_context(ctx);
-   intelFlush(ctx);
-   if (intel->batch->last_fence) {
-      dri_fence_wait(intel->batch->last_fence);
-      dri_fence_unreference(intel->batch->last_fence);
-      intel->batch->last_fence = NULL;
-   }
-}
-
-/** Driver-specific fence emit implementation for the fake memory manager. */
-static unsigned int
-intel_fence_emit(void *private)
-{
-   struct intel_context *intel = (struct intel_context *)private;
-   unsigned int fence;
-
-   /* XXX: Need to emit a flush, if we haven't already (at least with the
-    * current batchbuffer implementation, we have).
-    */
-
-   fence = intelEmitIrqLocked(intel);
-
-   return fence;
-}
-
-/** Driver-specific fence wait implementation for the fake memory manager. */
-static int
-intel_fence_wait(void *private, unsigned int cookie)
-{
-   struct intel_context *intel = (struct intel_context *)private;
-
-   intelWaitIrq(intel, cookie);
-
-   return 0;
-}
-
-static GLboolean
-intel_init_bufmgr(struct intel_context *intel)
-{
-   intelScreenPrivate *intelScreen = intel->intelScreen;
-   GLboolean ttm_disable = getenv("INTEL_NO_TTM") != NULL;
-
-   /* If we've got a new enough DDX that's initializing TTM and giving us
-    * object handles for the shared buffers, use that.
-    */
-   intel->ttm = GL_FALSE;
-   if (!ttm_disable &&
-       intel->intelScreen->driScrnPriv->ddx_version.minor >= 9 &&
-       intel->intelScreen->drmMinor >= 11 &&
-       intel->intelScreen->front.bo_handle != -1)
-   {
-      intel->bufmgr = intel_bufmgr_ttm_init(intel->driFd,
-					    DRM_FENCE_TYPE_EXE,
-					    DRM_FENCE_TYPE_EXE |
-					    DRM_I915_FENCE_TYPE_RW,
-					    BATCH_SZ);
-      if (intel->bufmgr != NULL)
-	 intel->ttm = GL_TRUE;
-   }
-   /* Otherwise, use the classic buffer manager. */
-   if (intel->bufmgr == NULL) {
-      if (ttm_disable) {
-	 fprintf(stderr, "TTM buffer manager disabled.  Using classic.\n");
-      } else {
-	 fprintf(stderr, "Failed to initialize TTM buffer manager.  "
-		 "Falling back to classic.\n");
-      }
-
-      if (intelScreen->tex.size == 0) {
-	 fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",
-		 __func__, __LINE__);
-	 return GL_FALSE;
-      }
-
-      intel->bufmgr = dri_bufmgr_fake_init(intelScreen->tex.offset,
-					   intelScreen->tex.map,
-					   intelScreen->tex.size,
-					   intel_fence_emit,
-					   intel_fence_wait,
-					   intel);
-   }
-
-   return GL_TRUE;
-}
-
-void
-intelInitDriverFunctions(struct dd_function_table *functions)
-{
-   _mesa_init_driver_functions(functions);
-
-   functions->Flush = intelFlush;
-   functions->Finish = intelFinish;
-   functions->GetString = intelGetString;
-   functions->UpdateState = intelInvalidateState;
-   functions->CopyColorTable = _swrast_CopyColorTable;
-   functions->CopyColorSubTable = _swrast_CopyColorSubTable;
-   functions->CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
-   functions->CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
-
-   intelInitTextureFuncs(functions);
-   intelInitPixelFuncs(functions);
-   intelInitStateFuncs(functions);
-   intelInitBufferFuncs(functions);
-}
-
-
-GLboolean
-intelInitContext(struct intel_context *intel,
-                 const __GLcontextModes * mesaVis,
-                 __DRIcontextPrivate * driContextPriv,
-                 void *sharedContextPrivate,
-                 struct dd_function_table *functions)
-{
-   GLcontext *ctx = &intel->ctx;
-   GLcontext *shareCtx = (GLcontext *) sharedContextPrivate;
-   __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
-   intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
-   struct drm_i915_sarea *saPriv = (struct drm_i915_sarea *)
-      (((GLubyte *) sPriv->pSAREA) + intelScreen->sarea_priv_offset);
-   int fthrottle_mode;
-
-   if (!_mesa_initialize_context(&intel->ctx,
-                                 mesaVis, shareCtx,
-                                 functions, (void *) intel))
-      return GL_FALSE;
-
-   driContextPriv->driverPrivate = intel;
-   intel->intelScreen = intelScreen;
-   intel->driScreen = sPriv;
-   intel->sarea = saPriv;
-
-   /* Dri stuff */
-   intel->hHWContext = driContextPriv->hHWContext;
-   intel->driFd = sPriv->fd;
-   intel->driHwLock = sPriv->lock;
-
-   intel->width = intelScreen->width;
-   intel->height = intelScreen->height;
-
-   if (intelScreen->deviceID == PCI_CHIP_I865_G)
-      intel->maxBatchSize = 4096;
-   else
-      intel->maxBatchSize = BATCH_SZ;
-
-   if (!intel_init_bufmgr(intel))
-      return GL_FALSE;
-
-   if (!lockMutexInit) {
-      lockMutexInit = GL_TRUE;
-      _glthread_INIT_MUTEX(lockMutex);
-   }
-
-   driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache,
-                       intel->driScreen->myNum, "i915");
-
-   ctx->Const.MaxTextureMaxAnisotropy = 2.0;
-
-   /* This doesn't yet catch all non-conformant rendering, but it's a
-    * start.
-    */
-   if (getenv("INTEL_STRICT_CONFORMANCE")) {
-      intel->strict_conformance = 1;
-   }
-
-   ctx->Const.MinLineWidth = 1.0;
-   ctx->Const.MinLineWidthAA = 1.0;
-   ctx->Const.MaxLineWidth = 3.0;
-   ctx->Const.MaxLineWidthAA = 3.0;
-   ctx->Const.LineWidthGranularity = 1.0;
-
-   ctx->Const.MinPointSize = 1.0;
-   ctx->Const.MinPointSizeAA = 1.0;
-   ctx->Const.MaxPointSize = 255.0;
-   ctx->Const.MaxPointSizeAA = 3.0;
-   ctx->Const.PointSizeGranularity = 1.0;
-
-   /* reinitialize the context point state.
-    * It depend on constants in __GLcontextRec::Const
-    */
-   _mesa_init_point(ctx);
-
-   ctx->Const.MaxColorAttachments = 4;  /* XXX FBO: review this */
-
-   /* Initialize the software rasterizer and helper modules. */
-   _swrast_CreateContext(ctx);
-   _vbo_CreateContext(ctx);
-   _tnl_CreateContext(ctx);
-   _swsetup_CreateContext(ctx);
-
-   /* Install the customized pipeline: */
-   _tnl_destroy_pipeline(ctx);
-   _tnl_install_pipeline(ctx, intel_pipeline);
-
-   /* Configure swrast to match hardware characteristics: */
-   _swrast_allow_pixel_fog(ctx, GL_FALSE);
-   _swrast_allow_vertex_fog(ctx, GL_TRUE);
-
-   intel->hw_stipple = 1;
-
-   /* XXX FBO: this doesn't seem to be used anywhere */
-   switch (mesaVis->depthBits) {
-   case 0:                     /* what to do in this case? */
-   case 16:
-      intel->polygon_offset_scale = 1.0;
-      break;
-   case 24:
-      intel->polygon_offset_scale = 2.0;     /* req'd to pass glean */
-      break;
-   default:
-      assert(0);
-      break;
-   }
-
-   /* Initialize swrast, tnl driver tables: */
-   intelInitSpanFuncs(ctx);
-   intelInitTriFuncs(ctx);
-
-
-   intel->RenderIndex = ~0;
-
-   fthrottle_mode = driQueryOptioni(&intel->optionCache, "fthrottle_mode");
-   intel->irqsEmitted = 0;
-
-   intel->do_irqs = (intel->intelScreen->irq_active &&
-                     fthrottle_mode == DRI_CONF_FTHROTTLE_IRQS);
-
-   intel->do_usleeps = (fthrottle_mode == DRI_CONF_FTHROTTLE_USLEEPS);
-
-   _math_matrix_ctr(&intel->ViewportMatrix);
-
-   /* Disable imaging extension until convolution is working in
-    * teximage paths:
-    */
-   driInitExtensions(ctx, card_extensions,
-/* 		      GL_TRUE, */
-                     GL_FALSE);
-
-   if (intel->ttm)
-      driInitExtensions(ctx, ttm_extensions, GL_FALSE);
-
-   if (!sPriv->dri2.enabled)
-      intel_recreate_static_regions(intel);
-
-   intel->batch = intel_batchbuffer_alloc(intel);
-   intel->last_swap_fence = NULL;
-   intel->first_swap_fence = NULL;
-
-   intel_bufferobj_init(intel);
-   intel_fbo_init(intel);
-
-   if (intel->ctx.Mesa_DXTn) {
-      _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
-      _mesa_enable_extension(ctx, "GL_S3_s3tc");
-   }
-   else if (driQueryOptionb(&intel->optionCache, "force_s3tc_enable")) {
-      _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
-   }
-
-   intel->prim.primitive = ~0;
-
-#if DO_DEBUG
-   INTEL_DEBUG = driParseDebugString(getenv("INTEL_DEBUG"), debug_control);
-   if (INTEL_DEBUG & DEBUG_BUFMGR)
-      dri_bufmgr_set_debug(intel->bufmgr, GL_TRUE);
-#endif
-
-   if (driQueryOptionb(&intel->optionCache, "no_rast")) {
-      fprintf(stderr, "disabling 3D rasterization\n");
-      FALLBACK(intel, INTEL_FALLBACK_USER, 1);
-   }
-
-   /* Disable all hardware rendering (skip emitting batches and fences/waits
-    * to the kernel)
-    */
-   intel->no_hw = getenv("INTEL_NO_HW") != NULL;
-
-   return GL_TRUE;
-}
-
-void
-intelDestroyContext(__DRIcontextPrivate * driContextPriv)
-{
-   struct intel_context *intel =
-      (struct intel_context *) driContextPriv->driverPrivate;
-
-   assert(intel);               /* should never be null */
-   if (intel) {
-      GLboolean release_texture_heaps;
-
-      INTEL_FIREVERTICES(intel);
-
-      intel->vtbl.destroy(intel);
-
-      release_texture_heaps = (intel->ctx.Shared->RefCount == 1);
-      _swsetup_DestroyContext(&intel->ctx);
-      _tnl_DestroyContext(&intel->ctx);
-      _vbo_DestroyContext(&intel->ctx);
-
-      _swrast_DestroyContext(&intel->ctx);
-      intel->Fallback = 0;      /* don't call _swrast_Flush later */
-
-      intel_batchbuffer_free(intel->batch);
-
-      if (intel->last_swap_fence) {
-	 dri_fence_wait(intel->last_swap_fence);
-	 dri_fence_unreference(intel->last_swap_fence);
-	 intel->last_swap_fence = NULL;
-      }
-      if (intel->first_swap_fence) {
-	 dri_fence_wait(intel->first_swap_fence);
-	 dri_fence_unreference(intel->first_swap_fence);
-	 intel->first_swap_fence = NULL;
-      }
-
-      if (release_texture_heaps) {
-         /* This share group is about to go away, free our private
-          * texture object data.
-          */
-         if (INTEL_DEBUG & DEBUG_TEXTURE)
-            fprintf(stderr, "do something to free texture heaps\n");
-      }
-
-      /* free the Mesa context */
-      _mesa_free_context_data(&intel->ctx);
-
-      dri_bufmgr_destroy(intel->bufmgr);
-   }
-}
-
-GLboolean
-intelUnbindContext(__DRIcontextPrivate * driContextPriv)
-{
-   return GL_TRUE;
-}
-
-GLboolean
-intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
-                 __DRIdrawablePrivate * driDrawPriv,
-                 __DRIdrawablePrivate * driReadPriv)
-{
-
-   if (driContextPriv) {
-      struct intel_context *intel =
-         (struct intel_context *) driContextPriv->driverPrivate;
-      struct intel_framebuffer *intel_fb =
-	 (struct intel_framebuffer *) driDrawPriv->driverPrivate;
-      GLframebuffer *readFb = (GLframebuffer *) driReadPriv->driverPrivate;
-
-
-      /* XXX FBO temporary fix-ups! */
-      /* if the renderbuffers don't have regions, init them from the context */
-      if (!driContextPriv->driScreenPriv->dri2.enabled) {
-         struct intel_renderbuffer *irbDepth
-            = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH);
-         struct intel_renderbuffer *irbStencil
-            = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL);
-
-         if (intel_fb->color_rb[0]) {
-	    intel_renderbuffer_set_region(intel_fb->color_rb[0],
-					  intel->front_region);
-         }
-         if (intel_fb->color_rb[1]) {
-	    intel_renderbuffer_set_region(intel_fb->color_rb[1],
-					  intel->back_region);
-         }
-         if (intel_fb->color_rb[2]) {
-	    intel_renderbuffer_set_region(intel_fb->color_rb[2],
-					  intel->third_region);
-         }
-         if (irbDepth) {
-	    intel_renderbuffer_set_region(irbDepth, intel->depth_region);
-         }
-         if (irbStencil) {
-	    intel_renderbuffer_set_region(irbStencil, intel->depth_region);
-         }
-      }
-
-      /* set GLframebuffer size to match window, if needed */
-      driUpdateFramebufferSize(&intel->ctx, driDrawPriv);
-
-      if (driReadPriv != driDrawPriv) {
-	 driUpdateFramebufferSize(&intel->ctx, driReadPriv);
-      }
-
-      _mesa_make_current(&intel->ctx, &intel_fb->Base, readFb);
-
-      /* The drawbuffer won't always be updated by _mesa_make_current: 
-       */
-      if (intel->ctx.DrawBuffer == &intel_fb->Base) {
-
-	 if (intel->driDrawable != driDrawPriv) {
-	    if (driDrawPriv->swap_interval == (unsigned)-1) {
-	       int i;
-
-	       driDrawPriv->vblFlags = (intel->intelScreen->irq_active != 0)
-		  ? driGetDefaultVBlankFlags(&intel->optionCache)
-		 : VBLANK_FLAG_NO_IRQ;
-
-	       (*dri_interface->getUST) (&intel_fb->swap_ust);
-	       driDrawableInitVBlank(driDrawPriv);
-	       intel_fb->vbl_waited = driDrawPriv->vblSeq;
-
-	       for (i = 0; i < (intel->intelScreen->third.handle ? 3 : 2); i++) {
-		  if (intel_fb->color_rb[i])
-		     intel_fb->color_rb[i]->vbl_pending = driDrawPriv->vblSeq;
-	       }
-	    }
-	    intel->driDrawable = driDrawPriv;
-	    intelWindowMoved(intel);
-	 }
-
-	 intel_draw_buffer(&intel->ctx, &intel_fb->Base);
-      }
-   }
-   else {
-      _mesa_make_current(NULL, NULL, NULL);
-   }
-
-   return GL_TRUE;
-}
-
-static void
-intelContendedLock(struct intel_context *intel, GLuint flags)
-{
-   __DRIdrawablePrivate *dPriv = intel->driDrawable;
-   __DRIscreenPrivate *sPriv = intel->driScreen;
-   struct drm_i915_sarea *sarea = intel->sarea;
-   int drawable_changed = 0;
-
-   drmGetLock(intel->driFd, intel->hHWContext, flags);
-
-   if (INTEL_DEBUG & DEBUG_LOCK)
-      _mesa_printf("%s - got contended lock\n", __progname);
-
-   /* If the window moved, may need to set a new cliprect now.
-    *
-    * NOTE: This releases and regains the hw lock, so all state
-    * checking must be done *after* this call:
-    */
-   if (dPriv) {
-      if (sPriv->dri2.enabled)
-	 drawable_changed = __driParseEvents(sPriv, dPriv);
-      else
-	 DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);
-   }
-
-   /* If the last consumer of the texture memory wasn't us, notify the fake
-    * bufmgr and record the new owner.  We should have the memory shared
-    * between contexts of a single fake bufmgr, but this will at least make
-    * things correct for now.
-    */
-   if (!intel->ttm && sarea->texAge != intel->hHWContext) {
-      sarea->texAge = intel->hHWContext;
-      dri_bufmgr_fake_contended_lock_take(intel->bufmgr);
-      if (INTEL_DEBUG & DEBUG_BATCH)
-	 intel_decode_context_reset();
-   }
-
-   if (!sPriv->dri2.enabled) {
-      if (sarea->width != intel->width ||
-	  sarea->height != intel->height) {
-	 int numClipRects = intel->numClipRects;
-
-	 /*
-	  * FIXME: Really only need to do this when drawing to a
-	  * common back- or front buffer.
-	  */
-
-	 /*
-	  * This will essentially drop the outstanding batchbuffer on the floor.
-	  */
-	 intel->numClipRects = 0;
-
-	 if (intel->Fallback)
-	    _swrast_flush(&intel->ctx);
-
-	 INTEL_FIREVERTICES(intel);
-
-	 if (intel->batch->map != intel->batch->ptr)
-	    intel_batchbuffer_flush(intel->batch);
-
-	 intel->numClipRects = numClipRects;
-
-	 /* force window update */
-	 intel->lastStamp = 0;
-
-	 intel->width = sarea->width;
-	 intel->height = sarea->height;
-      }
-
-      /* Drawable changed?
-       */
-      if (dPriv && intel->lastStamp != dPriv->lastStamp) {
-	 intelWindowMoved(intel);
-	 intel->lastStamp = dPriv->lastStamp;
-      }
-   } else if (drawable_changed) {
-     intelWindowMoved(intel);                                                 
-     intel_draw_buffer(&intel->ctx, intel->ctx.DrawBuffer);
-   }
-}
-
-
-
-/* Lock the hardware and validate our state.  
- */
-void LOCK_HARDWARE( struct intel_context *intel )
-{
-    __DRIdrawablePrivate *dPriv = intel->driDrawable;
-    char __ret=0;
-    struct intel_framebuffer *intel_fb = NULL;
-    struct intel_renderbuffer *intel_rb = NULL;
-    _glthread_LOCK_MUTEX(lockMutex);
-    assert(!intel->locked);
-
-    if (intel->driDrawable) {
-       intel_fb = intel->driDrawable->driverPrivate;
-
-       if (intel_fb)
-	  intel_rb =
-	     intel_get_renderbuffer(&intel_fb->Base,
-				    intel_fb->Base._ColorDrawBufferIndexes[0]);
-    }
-
-    if (intel_rb && dPriv->vblFlags &&
-	!(dPriv->vblFlags & VBLANK_FLAG_NO_IRQ) &&
-	(intel_fb->vbl_waited - intel_rb->vbl_pending) > (1<<23)) {
-	drmVBlank vbl;
-
-	vbl.request.type = DRM_VBLANK_ABSOLUTE;
-
-	if ( dPriv->vblFlags & VBLANK_FLAG_SECONDARY ) {
-	    vbl.request.type |= DRM_VBLANK_SECONDARY;
-	}
-
-	vbl.request.sequence = intel_rb->vbl_pending;
-	drmWaitVBlank(intel->driFd, &vbl);
-	intel_fb->vbl_waited = vbl.reply.sequence;
-    }
-
-    DRM_CAS(intel->driHwLock, intel->hHWContext,
-        (DRM_LOCK_HELD|intel->hHWContext), __ret);
-
-    intel->locked = 1;
-
-    if (__ret)
-        intelContendedLock( intel, 0 );
-
-    if (INTEL_DEBUG & DEBUG_LOCK)
-      _mesa_printf("%s - locked\n", __progname);
-}
-
-
-  /* Unlock the hardware using the global current context 
-   */
-void UNLOCK_HARDWARE( struct intel_context *intel )
-{
-   intel->locked = 0;
-
-   DRM_UNLOCK(intel->driFd, intel->driHwLock, intel->hHWContext);
-
-   _glthread_UNLOCK_MUTEX(lockMutex);
-
-   if (INTEL_DEBUG & DEBUG_LOCK)
-      _mesa_printf("%s - unlocked\n", __progname);
-
-   /**
-    * Nothing should be left in batch outside of LOCK/UNLOCK which references
-    * cliprects.
-    */
-   assert(intel->batch->cliprect_mode != REFERENCES_CLIPRECTS);
-}
-
+../intel/intel_context.c
\ No newline at end of file