src/mesa/drivers/dri/i965/brw_vtbl.c

   1 /*
   2  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
   3  Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
   4  develop this 3D driver.
   5
   6  Permission is hereby granted, free of charge, to any person obtaining
   7  a copy of this software and associated documentation files (the
   8  "Software"), to deal in the Software without restriction, including
   9  without limitation the rights to use, copy, modify, merge, publish,
  10  distribute, sublicense, and/or sell copies of the Software, and to
  11  permit persons to whom the Software is furnished to do so, subject to
  12  the following conditions:
  13
  14  The above copyright notice and this permission notice (including the
  15  next paragraph) shall be included in all copies or substantial
  16  portions of the Software.
  17
  18  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25
  26 **********************************************************************/
  27
  28 /*
  29  * Authors:
  30  *   Keith Whitwell <keith@tungstengraphics.com>
  31  */
  32
  33 #include "main/glheader.h"
  34 #include "main/mtypes.h"
  35 #include "main/imports.h"
  36 #include "main/macros.h"
  37 #include "main/colormac.h"
  38 #include "main/renderbuffer.h"
  39 #include "main/framebuffer.h"
  40
  41 #include "intel_batchbuffer.h"
  42 #include "intel_regions.h"
  43 #include "intel_fbo.h"
  44
  45 #include "brw_context.h"
  46 #include "brw_program.h"
  47 #include "brw_defines.h"
  48 #include "brw_state.h"
  49 #include "brw_draw.h"
  50 #include "brw_vs.h"
  51 #include "brw_wm.h"
  52
  53 #include "gen6_blorp.h"
  54 #include "gen7_blorp.h"
  55
  56 #include "glsl/ralloc.h"
  57
  58 static void
  59 dri_bo_release(drm_intel_bo **bo)
  60 {
  61    drm_intel_bo_unreference(*bo);
  62    *bo = NULL;
  63 }
  64
  65
  66 /**
  67  * called from intelDestroyContext()
  68  */
  69 static void
  70 brw_destroy_context(struct brw_context *brw)
  71 {
  72    struct intel_context *intel = &brw->intel;
  73    if (INTEL_DEBUG & DEBUG_SHADER_TIME) {
  74       /* Force a report. */
  75       brw->shader_time.report_time = 0;
  76
  77       brw_collect_and_report_shader_time(brw);
  78       brw_destroy_shader_time(brw);
  79    }
  80
  81    brw_destroy_state(brw);
  82    brw_draw_destroy( brw );
  83
  84    dri_bo_release(&brw->curbe.curbe_bo);
  85    dri_bo_release(&brw->vs.const_bo);
  86    dri_bo_release(&brw->wm.const_bo);
  87
  88    free(brw->curbe.last_buf);
  89    free(brw->curbe.next_buf);
  90
  91    drm_intel_gem_context_destroy(intel->hw_ctx);
  92 }
  93
  94 /**
  95  * called from intel_batchbuffer_flush and children before sending a
  96  * batchbuffer off.
  97  *
  98  * Note that ALL state emitted here must fit in the reserved space
  99  * at the end of a batchbuffer.  If you add more GPU state, increase
 100  * the BATCH_RESERVED macro.
 101  */
 102 static void
 103 brw_finish_batch(struct brw_context *brw)
 104 {
 105    brw_emit_query_end(brw);
 106
 107    if (brw->curbe.curbe_bo) {
 108       drm_intel_gem_bo_unmap_gtt(brw->curbe.curbe_bo);
 109       drm_intel_bo_unreference(brw->curbe.curbe_bo);
 110       brw->curbe.curbe_bo = NULL;
 111    }
 112 }
 113
 114
 115 /**
 116  * called from intelFlushBatchLocked
 117  */
 118 static void
 119 brw_new_batch(struct brw_context *brw)
 120 {
 121    struct intel_context *intel = &brw->intel;
 122
 123    /* If the kernel supports hardware contexts, then most hardware state is
 124     * preserved between batches; we only need to re-emit state that is required
 125     * to be in every batch.  Otherwise we need to re-emit all the state that
 126     * would otherwise be stored in the context (which for all intents and
 127     * purposes means everything).
 128     */
 129    if (intel->hw_ctx == NULL)
 130       brw->state.dirty.brw |= BRW_NEW_CONTEXT;
 131
 132    brw->state.dirty.brw |= BRW_NEW_BATCH;
 133
 134    /* Assume that the last command before the start of our batch was a
 135     * primitive, for safety.
 136     */
 137    intel->batch.need_workaround_flush = true;
 138
 139    brw->state_batch_count = 0;
 140
 141    brw->ib.type = -1;
 142
 143    /* Mark that the current program cache BO has been used by the GPU.
 144     * It will be reallocated if we need to put new programs in for the
 145     * next batch.
 146     */
 147    brw->cache.bo_used_by_gpu = true;
 148
 149    /* We need to periodically reap the shader time results, because rollover
 150     * happens every few seconds.  We also want to see results every once in a
 151     * while, because many programs won't cleanly destroy our context, so the
 152     * end-of-run printout may not happen.
 153     */
 154    if (INTEL_DEBUG & DEBUG_SHADER_TIME)
 155       brw_collect_and_report_shader_time(brw);
 156 }
 157
 158 void brwInitVtbl( struct brw_context *brw )
 159 {
 160    brw->vtbl.new_batch = brw_new_batch;
 161    brw->vtbl.finish_batch = brw_finish_batch;
 162    brw->vtbl.destroy = brw_destroy_context;
 163
 164    assert(brw->intel.gen >= 4);
 165    if (brw->intel.gen >= 7) {
 166       gen7_init_vtable_surface_functions(brw);
 167       brw->vtbl.emit_depth_stencil_hiz = gen7_emit_depth_stencil_hiz;
 168    } else if (brw->intel.gen >= 4) {
 169       gen4_init_vtable_surface_functions(brw);
 170       brw->vtbl.emit_depth_stencil_hiz = brw_emit_depth_stencil_hiz;
 171    }
 172 }