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

   1 /*
   2  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
   3  Intel funded Tungsten Graphics 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   * Authors:
  29   *   Keith Whitwell <keithw@vmware.com>
  30   */
  31
  32 #include "main/mtypes.h"
  33 #include "program/prog_parameter.h"
  34
  35 #include "brw_context.h"
  36 #include "brw_state.h"
  37 #include "intel_buffer_objects.h"
  38
  39 void
  40 brw_upload_vec4_pull_constants(struct brw_context *brw,
  41                                GLbitfield brw_new_constbuf,
  42                                const struct gl_program *prog,
  43                                struct brw_stage_state *stage_state,
  44                                const struct brw_vec4_prog_data *prog_data)
  45 {
  46    int i;
  47    uint32_t surf_index = prog_data->base.binding_table.pull_constants_start;
  48
  49    /* Updates the ParamaterValues[i] pointers for all parameters of the
  50     * basic type of PROGRAM_STATE_VAR.
  51     */
  52    _mesa_load_state_parameters(&brw->ctx, prog->Parameters);
  53
  54    if (!prog_data->base.nr_pull_params) {
  55       if (stage_state->surf_offset[surf_index]) {
  56          stage_state->surf_offset[surf_index] = 0;
  57          brw->state.dirty.brw |= brw_new_constbuf;
  58       }
  59       return;
  60    }
  61
  62    /* _NEW_PROGRAM_CONSTANTS */
  63    uint32_t size = prog_data->base.nr_pull_params * 4;
  64    drm_intel_bo *const_bo = NULL;
  65    uint32_t const_offset;
  66    float *constants = intel_upload_space(brw, size, 64,
  67                                          &const_bo, &const_offset);
  68
  69    for (i = 0; i < prog_data->base.nr_pull_params; i++) {
  70       constants[i] = *prog_data->base.pull_param[i];
  71    }
  72
  73    if (0) {
  74       for (i = 0; i < ALIGN(prog_data->base.nr_pull_params, 4) / 4; i++) {
  75          float *row = &constants[i * 4];
  76          fprintf(stderr, "const surface %3d: %4.3f %4.3f %4.3f %4.3f\n",
  77                  i, row[0], row[1], row[2], row[3]);
  78       }
  79    }
  80
  81    brw_create_constant_surface(brw, const_bo, const_offset, size,
  82                                &stage_state->surf_offset[surf_index],
  83                                false);
  84    drm_intel_bo_unreference(const_bo);
  85
  86    brw->state.dirty.brw |= brw_new_constbuf;
  87 }
  88
  89
  90 /* Creates a new VS constant buffer reflecting the current VS program's
  91  * constants, if needed by the VS program.
  92  *
  93  * Otherwise, constants go through the CURBEs using the brw_constant_buffer
  94  * state atom.
  95  */
  96 static void
  97 brw_upload_vs_pull_constants(struct brw_context *brw)
  98 {
  99    struct brw_stage_state *stage_state = &brw->vs.base;
 100
 101    /* BRW_NEW_VERTEX_PROGRAM */
 102    struct brw_vertex_program *vp =
 103       (struct brw_vertex_program *) brw->vertex_program;
 104
 105    /* CACHE_NEW_VS_PROG */
 106    const struct brw_vec4_prog_data *prog_data = &brw->vs.prog_data->base;
 107
 108    /* _NEW_PROGRAM_CONSTANTS */
 109    brw_upload_vec4_pull_constants(brw, BRW_NEW_VS_CONSTBUF, &vp->program.Base,
 110                                   stage_state, prog_data);
 111 }
 112
 113 const struct brw_tracked_state brw_vs_pull_constants = {
 114    .dirty = {
 115       .mesa = (_NEW_PROGRAM_CONSTANTS),
 116       .brw = (BRW_NEW_BATCH | BRW_NEW_VERTEX_PROGRAM),
 117       .cache = CACHE_NEW_VS_PROG,
 118    },
 119    .emit = brw_upload_vs_pull_constants,
 120 };
 121
 122 static void
 123 brw_upload_vs_ubo_surfaces(struct brw_context *brw)
 124 {
 125    struct gl_context *ctx = &brw->ctx;
 126    /* _NEW_PROGRAM */
 127    struct gl_shader_program *prog =
 128       ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
 129
 130    if (!prog)
 131       return;
 132
 133    /* CACHE_NEW_VS_PROG */
 134    brw_upload_ubo_surfaces(brw, prog->_LinkedShaders[MESA_SHADER_VERTEX],
 135                            &brw->vs.base, &brw->vs.prog_data->base.base);
 136 }
 137
 138 const struct brw_tracked_state brw_vs_ubo_surfaces = {
 139    .dirty = {
 140       .mesa = _NEW_PROGRAM,
 141       .brw = BRW_NEW_BATCH | BRW_NEW_UNIFORM_BUFFER,
 142       .cache = CACHE_NEW_VS_PROG,
 143    },
 144    .emit = brw_upload_vs_ubo_surfaces,
 145 };
 146
 147 static void
 148 brw_upload_vs_abo_surfaces(struct brw_context *brw)
 149 {
 150    struct gl_context *ctx = &brw->ctx;
 151    /* _NEW_PROGRAM */
 152    struct gl_shader_program *prog =
 153       ctx->_Shader->CurrentProgram[MESA_SHADER_VERTEX];
 154
 155    if (prog) {
 156       /* CACHE_NEW_VS_PROG */
 157       brw_upload_abo_surfaces(brw, prog, &brw->vs.base,
 158                               &brw->vs.prog_data->base.base);
 159    }
 160 }
 161
 162 const struct brw_tracked_state brw_vs_abo_surfaces = {
 163    .dirty = {
 164       .mesa = _NEW_PROGRAM,
 165       .brw = BRW_NEW_BATCH | BRW_NEW_ATOMIC_BUFFER,
 166       .cache = CACHE_NEW_VS_PROG,
 167    },
 168    .emit = brw_upload_vs_abo_surfaces,
 169 };