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    if (INTEL_DEBUG & DEBUG_SHADER_TIME) {
  73       /* Force a report. */
  74       brw->shader_time.report_time = 0;
  75
  76       brw_collect_and_report_shader_time(brw);
  77       brw_destroy_shader_time(brw);
  78    }
  79
  80    brw_destroy_state(brw);
  81    brw_draw_destroy( brw );
  82
  83    dri_bo_release(&brw->curbe.curbe_bo);
  84    dri_bo_release(&brw->vs.const_bo);
  85    dri_bo_release(&brw->wm.const_bo);
  86
  87    free(brw->curbe.last_buf);
  88    free(brw->curbe.next_buf);
  89
  90    drm_intel_gem_context_destroy(brw->hw_ctx);
  91 }
  92
  93 /**
  94  * called from intel_batchbuffer_flush and children before sending a
  95  * batchbuffer off.
  96  *
  97  * Note that ALL state emitted here must fit in the reserved space
  98  * at the end of a batchbuffer.  If you add more GPU state, increase
  99  * the BATCH_RESERVED macro.
 100  */
 101 static void
 102 brw_finish_batch(struct brw_context *brw)
 103 {
 104    brw_emit_query_end(brw);
 105
 106    if (brw->curbe.curbe_bo) {
 107       drm_intel_gem_bo_unmap_gtt(brw->curbe.curbe_bo);
 108       drm_intel_bo_unreference(brw->curbe.curbe_bo);
 109       brw->curbe.curbe_bo = NULL;
 110    }
 111 }
 112
 113
 114 /**
 115  * called from intelFlushBatchLocked
 116  */
 117 static void
 118 brw_new_batch(struct brw_context *brw)
 119 {
 120    /* If the kernel supports hardware contexts, then most hardware state is
 121     * preserved between batches; we only need to re-emit state that is required
 122     * to be in every batch.  Otherwise we need to re-emit all the state that
 123     * would otherwise be stored in the context (which for all intents and
 124     * purposes means everything).
 125     */
 126    if (brw->hw_ctx == NULL)
 127       brw->state.dirty.brw |= BRW_NEW_CONTEXT;
 128
 129    brw->state.dirty.brw |= BRW_NEW_BATCH;
 130
 131    /* Assume that the last command before the start of our batch was a
 132     * primitive, for safety.
 133     */
 134    brw->batch.need_workaround_flush = true;
 135
 136    brw->state_batch_count = 0;
 137
 138    brw->ib.type = -1;
 139
 140    /* Mark that the current program cache BO has been used by the GPU.
 141     * It will be reallocated if we need to put new programs in for the
 142     * next batch.
 143     */
 144    brw->cache.bo_used_by_gpu = true;
 145
 146    /* We need to periodically reap the shader time results, because rollover
 147     * happens every few seconds.  We also want to see results every once in a
 148     * while, because many programs won't cleanly destroy our context, so the
 149     * end-of-run printout may not happen.
 150     */
 151    if (INTEL_DEBUG & DEBUG_SHADER_TIME)
 152       brw_collect_and_report_shader_time(brw);
 153 }
 154
 155 void brwInitVtbl( struct brw_context *brw )
 156 {
 157    brw->vtbl.new_batch = brw_new_batch;
 158    brw->vtbl.finish_batch = brw_finish_batch;
 159    brw->vtbl.destroy = brw_destroy_context;
 160
 161    assert(brw->gen >= 4);
 162    if (brw->gen >= 7) {
 163       gen7_init_vtable_surface_functions(brw);
 164       brw->vtbl.emit_depth_stencil_hiz = gen7_emit_depth_stencil_hiz;
 165    } else if (brw->gen >= 4) {
 166       gen4_init_vtable_surface_functions(brw);
 167       brw->vtbl.emit_depth_stencil_hiz = brw_emit_depth_stencil_hiz;
 168    }
 169 }