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

   1 /*
   2  * Copyright © 2013 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "main/mtypes.h"
  25 #include "program/prog_parameter.h"
  26 #include "main/shaderapi.h"
  27
  28 #include "brw_context.h"
  29 #include "brw_state.h"
  30
  31
  32 /* Creates a new GS constant buffer reflecting the current GS program's
  33  * constants, if needed by the GS program.
  34  *
  35  * Otherwise, constants go through the CURBEs using the brw_constant_buffer
  36  * state atom.
  37  */
  38 static void
  39 brw_upload_gs_pull_constants(struct brw_context *brw)
  40 {
  41    struct brw_stage_state *stage_state = &brw->gs.base;
  42
  43    /* BRW_NEW_GEOMETRY_PROGRAM */
  44    struct brw_program *gp =
  45       (struct brw_program *) brw->programs[MESA_SHADER_GEOMETRY];
  46
  47    if (!gp)
  48       return;
  49
  50    /* BRW_NEW_GS_PROG_DATA */
  51    const struct brw_stage_prog_data *prog_data = brw->gs.base.prog_data;
  52
  53    _mesa_shader_write_subroutine_indices(&brw->ctx, MESA_SHADER_GEOMETRY);
  54    /* _NEW_PROGRAM_CONSTANTS */
  55    brw_upload_pull_constants(brw, BRW_NEW_GS_CONSTBUF, &gp->program,
  56                              stage_state, prog_data);
  57 }
  58
  59 const struct brw_tracked_state brw_gs_pull_constants = {
  60    .dirty = {
  61       .mesa = _NEW_PROGRAM_CONSTANTS,
  62       .brw = BRW_NEW_BATCH |
  63              BRW_NEW_GEOMETRY_PROGRAM |
  64              BRW_NEW_GS_PROG_DATA,
  65    },
  66    .emit = brw_upload_gs_pull_constants,
  67 };
  68
  69 static void
  70 brw_upload_gs_ubo_surfaces(struct brw_context *brw)
  71 {
  72    struct gl_context *ctx = &brw->ctx;
  73
  74    /* _NEW_PROGRAM */
  75    struct gl_program *prog =
  76       ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY];
  77
  78    /* BRW_NEW_GS_PROG_DATA */
  79    struct brw_stage_prog_data *prog_data = brw->gs.base.prog_data;
  80
  81    brw_upload_ubo_surfaces(brw, prog, &brw->gs.base, prog_data);
  82 }
  83
  84 const struct brw_tracked_state brw_gs_ubo_surfaces = {
  85    .dirty = {
  86       .mesa = _NEW_PROGRAM,
  87       .brw = BRW_NEW_BATCH |
  88              BRW_NEW_GS_PROG_DATA |
  89              BRW_NEW_UNIFORM_BUFFER,
  90    },
  91    .emit = brw_upload_gs_ubo_surfaces,
  92 };
  93
  94 static void
  95 brw_upload_gs_image_surfaces(struct brw_context *brw)
  96 {
  97    /* BRW_NEW_GEOMETRY_PROGRAM */
  98    const struct gl_program *gp = brw->programs[MESA_SHADER_GEOMETRY];
  99
 100    if (gp) {
 101       /* BRW_NEW_GS_PROG_DATA, BRW_NEW_IMAGE_UNITS, _NEW_TEXTURE */
 102       brw_upload_image_surfaces(brw, gp, &brw->gs.base,
 103                                 brw->gs.base.prog_data);
 104    }
 105 }
 106
 107 const struct brw_tracked_state brw_gs_image_surfaces = {
 108    .dirty = {
 109       .mesa = _NEW_TEXTURE,
 110       .brw = BRW_NEW_BATCH |
 111              BRW_NEW_AUX_STATE |
 112              BRW_NEW_GEOMETRY_PROGRAM |
 113              BRW_NEW_GS_PROG_DATA |
 114              BRW_NEW_IMAGE_UNITS,
 115    },
 116    .emit = brw_upload_gs_image_surfaces,
 117 };