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 brw_destroy_context( struct intel_context *intel )
  70 {
  71    struct brw_context *brw = brw_context(&intel->ctx);
  72
  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  * Update the hardware state for drawing into a window or framebuffer object.
  96  *
  97  * Called by glDrawBuffer, glBindFramebufferEXT, MakeCurrent, and other
  98  * places within the driver.
  99  *
 100  * Basically, this needs to be called any time the current framebuffer
 101  * changes, the renderbuffers change, or we need to draw into different
 102  * color buffers.
 103  */
 104 static void
 105 brw_update_draw_buffer(struct intel_context *intel)
 106 {
 107    struct gl_context *ctx = &intel->ctx;
 108    struct gl_framebuffer *fb = ctx->DrawBuffer;
 109
 110    if (!fb) {
 111       /* this can happen during the initial context initialization */
 112       return;
 113    }
 114
 115    /* Do this here, not core Mesa, since this function is called from
 116     * many places within the driver.
 117     */
 118    if (ctx->NewState & _NEW_BUFFERS) {
 119       /* this updates the DrawBuffer->_NumColorDrawBuffers fields, etc */
 120       _mesa_update_framebuffer(ctx);
 121    }
 122
 123    if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
 124       /* this may occur when we're called by glBindFrameBuffer() during
 125        * the process of someone setting up renderbuffers, etc.
 126        */
 127       /*_mesa_debug(ctx, "DrawBuffer: incomplete user FBO\n");*/
 128       return;
 129    }
 130
 131    /* The driver uses this in places that need to look up
 132     * renderbuffers' buffer objects.
 133     */
 134    intel->NewGLState |= _NEW_BUFFERS;
 135 }
 136
 137 /**
 138  * called from intel_batchbuffer_flush and children before sending a
 139  * batchbuffer off.
 140  *
 141  * Note that ALL state emitted here must fit in the reserved space
 142  * at the end of a batchbuffer.  If you add more GPU state, increase
 143  * the BATCH_RESERVED macro.
 144  */
 145 static void brw_finish_batch(struct intel_context *intel)
 146 {
 147    struct brw_context *brw = brw_context(&intel->ctx);
 148    brw_emit_query_end(brw);
 149
 150    if (brw->curbe.curbe_bo) {
 151       drm_intel_gem_bo_unmap_gtt(brw->curbe.curbe_bo);
 152       drm_intel_bo_unreference(brw->curbe.curbe_bo);
 153       brw->curbe.curbe_bo = NULL;
 154    }
 155 }
 156
 157
 158 /**
 159  * called from intelFlushBatchLocked
 160  */
 161 static void brw_new_batch( struct intel_context *intel )
 162 {
 163    struct brw_context *brw = brw_context(&intel->ctx);
 164
 165    /* If the kernel supports hardware contexts, then most hardware state is
 166     * preserved between batches; we only need to re-emit state that is required
 167     * to be in every batch.  Otherwise we need to re-emit all the state that
 168     * would otherwise be stored in the context (which for all intents and
 169     * purposes means everything).
 170     */
 171    if (intel->hw_ctx == NULL)
 172       brw->state.dirty.brw |= BRW_NEW_CONTEXT;
 173
 174    brw->state.dirty.brw |= BRW_NEW_BATCH;
 175
 176    /* Assume that the last command before the start of our batch was a
 177     * primitive, for safety.
 178     */
 179    intel->batch.need_workaround_flush = true;
 180
 181    brw->state_batch_count = 0;
 182
 183    brw->ib.type = -1;
 184
 185    /* Mark that the current program cache BO has been used by the GPU.
 186     * It will be reallocated if we need to put new programs in for the
 187     * next batch.
 188     */
 189    brw->cache.bo_used_by_gpu = true;
 190
 191    /* We need to periodically reap the shader time results, because rollover
 192     * happens every few seconds.  We also want to see results every once in a
 193     * while, because many programs won't cleanly destroy our context, so the
 194     * end-of-run printout may not happen.
 195     */
 196    if (INTEL_DEBUG & DEBUG_SHADER_TIME)
 197       brw_collect_and_report_shader_time(brw);
 198 }
 199
 200 static void brw_invalidate_state( struct intel_context *intel, GLuint new_state )
 201 {
 202    /* nothing */
 203 }
 204
 205 /**
 206  * \see intel_context.vtbl.is_hiz_depth_format
 207  */
 208 static bool brw_is_hiz_depth_format(struct intel_context *intel,
 209                                     gl_format format)
 210 {
 211    if (!intel->has_hiz)
 212       return false;
 213
 214    switch (format) {
 215    case MESA_FORMAT_Z32_FLOAT:
 216    case MESA_FORMAT_Z32_FLOAT_X24S8:
 217    case MESA_FORMAT_X8_Z24:
 218    case MESA_FORMAT_S8_Z24:
 219    case MESA_FORMAT_Z16:
 220       return true;
 221    default:
 222       return false;
 223    }
 224 }
 225
 226 void brwInitVtbl( struct brw_context *brw )
 227 {
 228    brw->intel.vtbl.check_vertex_size = 0;
 229    brw->intel.vtbl.emit_state = 0;
 230    brw->intel.vtbl.reduced_primitive_state = 0;
 231    brw->intel.vtbl.render_start = 0;
 232    brw->intel.vtbl.update_texture_state = 0;
 233
 234    brw->intel.vtbl.invalidate_state = brw_invalidate_state;
 235    brw->intel.vtbl.new_batch = brw_new_batch;
 236    brw->intel.vtbl.finish_batch = brw_finish_batch;
 237    brw->intel.vtbl.destroy = brw_destroy_context;
 238    brw->intel.vtbl.update_draw_buffer = brw_update_draw_buffer;
 239    brw->intel.vtbl.debug_batch = brw_debug_batch;
 240    brw->intel.vtbl.annotate_aub = brw_annotate_aub;
 241    brw->intel.vtbl.render_target_supported = brw_render_target_supported;
 242    brw->intel.vtbl.is_hiz_depth_format = brw_is_hiz_depth_format;
 243
 244    assert(brw->intel.gen >= 4);
 245    if (brw->intel.gen >= 7) {
 246       gen7_init_vtable_surface_functions(brw);
 247       brw->intel.vtbl.emit_depth_stencil_hiz = gen7_emit_depth_stencil_hiz;
 248    } else if (brw->intel.gen >= 4) {
 249       gen4_init_vtable_surface_functions(brw);
 250       brw->intel.vtbl.emit_depth_stencil_hiz = brw_emit_depth_stencil_hiz;
 251    }
 252 }