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 = (struct brw_program *) brw->geometry_program;
  45
  46    if (!gp)
  47       return;
  48
  49    /* BRW_NEW_GS_PROG_DATA */
  50    const struct brw_stage_prog_data *prog_data = brw->gs.base.prog_data;
  51
  52    _mesa_shader_write_subroutine_indices(&brw->ctx, MESA_SHADER_GEOMETRY);
  53    /* _NEW_PROGRAM_CONSTANTS */
  54    brw_upload_pull_constants(brw, BRW_NEW_GS_CONSTBUF, &gp->program,
  55                              stage_state, prog_data);
  56 }
  57
  58 const struct brw_tracked_state brw_gs_pull_constants = {
  59    .dirty = {
  60       .mesa = _NEW_PROGRAM_CONSTANTS,
  61       .brw = BRW_NEW_BATCH |
  62              BRW_NEW_GEOMETRY_PROGRAM |
  63              BRW_NEW_GS_PROG_DATA,
  64    },
  65    .emit = brw_upload_gs_pull_constants,
  66 };
  67
  68 static void
  69 brw_upload_gs_ubo_surfaces(struct brw_context *brw)
  70 {
  71    struct gl_context *ctx = &brw->ctx;
  72
  73    /* _NEW_PROGRAM */
  74    struct gl_program *prog =
  75       ctx->_Shader->CurrentProgram[MESA_SHADER_GEOMETRY];
  76
  77    /* BRW_NEW_GS_PROG_DATA */
  78    struct brw_stage_prog_data *prog_data = brw->gs.base.prog_data;
  79
  80    brw_upload_ubo_surfaces(brw, prog, &brw->gs.base, prog_data);
  81 }
  82
  83 const struct brw_tracked_state brw_gs_ubo_surfaces = {
  84    .dirty = {
  85       .mesa = _NEW_PROGRAM,
  86       .brw = BRW_NEW_BATCH |
  87              BRW_NEW_GS_PROG_DATA |
  88              BRW_NEW_UNIFORM_BUFFER,
  89    },
  90    .emit = brw_upload_gs_ubo_surfaces,
  91 };
  92
  93 static void
  94 brw_upload_gs_abo_surfaces(struct brw_context *brw)
  95 {
  96    /* _NEW_PROGRAM */
  97    const struct gl_program *gp = brw->geometry_program;
  98
  99    if (gp) {
 100       /* BRW_NEW_GS_PROG_DATA */
 101       brw_upload_abo_surfaces(brw, gp, &brw->gs.base, brw->gs.base.prog_data);
 102    }
 103 }
 104
 105 const struct brw_tracked_state brw_gs_abo_surfaces = {
 106    .dirty = {
 107       .mesa = _NEW_PROGRAM,
 108       .brw = BRW_NEW_ATOMIC_BUFFER |
 109              BRW_NEW_BATCH |
 110              BRW_NEW_GS_PROG_DATA,
 111    },
 112    .emit = brw_upload_gs_abo_surfaces,
 113 };
 114
 115 static void
 116 brw_upload_gs_image_surfaces(struct brw_context *brw)
 117 {
 118    /* BRW_NEW_GEOMETRY_PROGRAM */
 119    const struct gl_program *gp = brw->geometry_program;
 120
 121    if (gp) {
 122       /* BRW_NEW_GS_PROG_DATA, BRW_NEW_IMAGE_UNITS, _NEW_TEXTURE */
 123       brw_upload_image_surfaces(brw, gp, &brw->gs.base,
 124                                 brw->gs.base.prog_data);
 125    }
 126 }
 127
 128 const struct brw_tracked_state brw_gs_image_surfaces = {
 129    .dirty = {
 130       .mesa = _NEW_TEXTURE,
 131       .brw = BRW_NEW_BATCH |
 132              BRW_NEW_AUX_STATE |
 133              BRW_NEW_GEOMETRY_PROGRAM |
 134              BRW_NEW_GS_PROG_DATA |
 135              BRW_NEW_IMAGE_UNITS,
 136    },
 137    .emit = brw_upload_gs_image_surfaces,
 138 };