src/compiler/glsl/standalone_scaffolding.cpp

   1 /*
   2  * Copyright © 2011 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
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 /* This file declares stripped-down versions of functions that
  25  * normally exist outside of the glsl folder, so that they can be used
  26  * when running the GLSL compiler standalone (for unit testing or
  27  * compiling builtins).
  28  */
  29
  30 #include "standalone_scaffolding.h"
  31
  32 #include <assert.h>
  33 #include <stdio.h>
  34 #include <string.h>
  35 #include "util/ralloc.h"
  36 #include "util/strtod.h"
  37
  38 void
  39 _mesa_warning(struct gl_context *ctx, const char *fmt, ...)
  40 {
  41     va_list vargs;
  42     (void) ctx;
  43
  44     va_start(vargs, fmt);
  45
  46     /* This output is not thread-safe, but that's good enough for the
  47      * standalone compiler.
  48      */
  49     fprintf(stderr, "Mesa warning: ");
  50     vfprintf(stderr, fmt, vargs);
  51     fprintf(stderr, "\n");
  52
  53     va_end(vargs);
  54 }
  55
  56 void
  57 _mesa_reference_shader_program_data(struct gl_context *ctx,
  58                                     struct gl_shader_program_data **ptr,
  59                                     struct gl_shader_program_data *data)
  60 {
  61    (void) ctx;
  62    *ptr = data;
  63 }
  64
  65 void
  66 _mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
  67                        struct gl_shader *sh)
  68 {
  69    (void) ctx;
  70    *ptr = sh;
  71 }
  72
  73 void
  74 _mesa_reference_program_(struct gl_context *ctx, struct gl_program **ptr,
  75                          struct gl_program *prog)
  76 {
  77    (void) ctx;
  78    *ptr = prog;
  79 }
  80
  81 void
  82 _mesa_shader_debug(struct gl_context *, GLenum, GLuint *,
  83                    const char *)
  84 {
  85 }
  86
  87 struct gl_shader *
  88 _mesa_new_shader(GLuint name, gl_shader_stage stage)
  89 {
  90    struct gl_shader *shader;
  91
  92    assert(stage == MESA_SHADER_FRAGMENT || stage == MESA_SHADER_VERTEX);
  93    shader = rzalloc(NULL, struct gl_shader);
  94    if (shader) {
  95       shader->Stage = stage;
  96       shader->Name = name;
  97       shader->RefCount = 1;
  98    }
  99    return shader;
 100 }
 101
 102 GLbitfield
 103 _mesa_program_state_flags(const gl_state_index state[STATE_LENGTH])
 104 {
 105    return 0;
 106 }
 107
 108 char *
 109 _mesa_program_state_string(const gl_state_index state[STATE_LENGTH])
 110 {
 111    return NULL;
 112 }
 113
 114 void
 115 _mesa_delete_shader(struct gl_context *ctx, struct gl_shader *sh)
 116 {
 117    free((void *)sh->Source);
 118    free(sh->Label);
 119    ralloc_free(sh);
 120 }
 121
 122 void
 123 _mesa_delete_linked_shader(struct gl_context *ctx,
 124                            struct gl_linked_shader *sh)
 125 {
 126    ralloc_free(sh);
 127 }
 128
 129 void
 130 _mesa_clear_shader_program_data(struct gl_context *ctx,
 131                                 struct gl_shader_program *shProg)
 132 {
 133    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 134       if (shProg->_LinkedShaders[i] != NULL) {
 135          _mesa_delete_linked_shader(ctx, shProg->_LinkedShaders[i]);
 136          shProg->_LinkedShaders[i] = NULL;
 137       }
 138    }
 139
 140    shProg->data->NumUniformStorage = 0;
 141    shProg->data->UniformStorage = NULL;
 142    shProg->NumUniformRemapTable = 0;
 143    shProg->UniformRemapTable = NULL;
 144    shProg->UniformHash = NULL;
 145
 146    ralloc_free(shProg->data->InfoLog);
 147    shProg->data->InfoLog = ralloc_strdup(shProg->data, "");
 148
 149    ralloc_free(shProg->data->UniformBlocks);
 150    shProg->data->UniformBlocks = NULL;
 151    shProg->data->NumUniformBlocks = 0;
 152
 153    ralloc_free(shProg->data->ShaderStorageBlocks);
 154    shProg->data->ShaderStorageBlocks = NULL;
 155    shProg->data->NumShaderStorageBlocks = 0;
 156
 157    ralloc_free(shProg->data->AtomicBuffers);
 158    shProg->data->AtomicBuffers = NULL;
 159    shProg->data->NumAtomicBuffers = 0;
 160 }
 161
 162 void initialize_context_to_defaults(struct gl_context *ctx, gl_api api)
 163 {
 164    memset(ctx, 0, sizeof(*ctx));
 165
 166    ctx->API = api;
 167
 168    ctx->Extensions.dummy_false = false;
 169    ctx->Extensions.dummy_true = true;
 170    ctx->Extensions.ARB_compute_shader = true;
 171    ctx->Extensions.ARB_compute_variable_group_size = true;
 172    ctx->Extensions.ARB_conservative_depth = true;
 173    ctx->Extensions.ARB_draw_instanced = true;
 174    ctx->Extensions.ARB_ES2_compatibility = true;
 175    ctx->Extensions.ARB_ES3_compatibility = true;
 176    ctx->Extensions.ARB_explicit_attrib_location = true;
 177    ctx->Extensions.ARB_fragment_coord_conventions = true;
 178    ctx->Extensions.ARB_fragment_layer_viewport = true;
 179    ctx->Extensions.ARB_gpu_shader5 = true;
 180    ctx->Extensions.ARB_gpu_shader_fp64 = true;
 181    ctx->Extensions.ARB_gpu_shader_int64 = true;
 182    ctx->Extensions.ARB_sample_shading = true;
 183    ctx->Extensions.ARB_shader_bit_encoding = true;
 184    ctx->Extensions.ARB_shader_draw_parameters = true;
 185    ctx->Extensions.ARB_shader_stencil_export = true;
 186    ctx->Extensions.ARB_shader_subroutine = true;
 187    ctx->Extensions.ARB_shader_texture_lod = true;
 188    ctx->Extensions.ARB_shading_language_420pack = true;
 189    ctx->Extensions.ARB_shading_language_packing = true;
 190    ctx->Extensions.ARB_tessellation_shader = true;
 191    ctx->Extensions.ARB_texture_cube_map_array = true;
 192    ctx->Extensions.ARB_texture_gather = true;
 193    ctx->Extensions.ARB_texture_multisample = true;
 194    ctx->Extensions.ARB_texture_query_levels = true;
 195    ctx->Extensions.ARB_texture_query_lod = true;
 196    ctx->Extensions.ARB_uniform_buffer_object = true;
 197    ctx->Extensions.ARB_viewport_array = true;
 198    ctx->Extensions.ARB_cull_distance = true;
 199
 200    ctx->Extensions.OES_EGL_image_external = true;
 201    ctx->Extensions.OES_standard_derivatives = true;
 202
 203    ctx->Extensions.EXT_shader_integer_mix = true;
 204    ctx->Extensions.EXT_texture_array = true;
 205
 206    ctx->Extensions.MESA_shader_integer_functions = true;
 207
 208    ctx->Extensions.NV_texture_rectangle = true;
 209
 210    ctx->Const.GLSLVersion = 120;
 211
 212    /* 1.20 minimums. */
 213    ctx->Const.MaxLights = 8;
 214    ctx->Const.MaxClipPlanes = 6;
 215    ctx->Const.MaxTextureUnits = 2;
 216    ctx->Const.MaxTextureCoordUnits = 2;
 217    ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
 218
 219    ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 512;
 220    ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 32;
 221    ctx->Const.MaxVarying = 8; /* == gl_MaxVaryingFloats / 4 */
 222    ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 0;
 223    ctx->Const.MaxCombinedTextureImageUnits = 2;
 224    ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 2;
 225    ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 64;
 226    ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents = 32;
 227
 228    ctx->Const.MaxDrawBuffers = 1;
 229    ctx->Const.MaxComputeWorkGroupCount[0] = 65535;
 230    ctx->Const.MaxComputeWorkGroupCount[1] = 65535;
 231    ctx->Const.MaxComputeWorkGroupCount[2] = 65535;
 232    ctx->Const.MaxComputeWorkGroupSize[0] = 1024;
 233    ctx->Const.MaxComputeWorkGroupSize[1] = 1024;
 234    ctx->Const.MaxComputeWorkGroupSize[2] = 64;
 235    ctx->Const.MaxComputeWorkGroupInvocations = 1024;
 236    ctx->Const.MaxComputeVariableGroupSize[0] = 512;
 237    ctx->Const.MaxComputeVariableGroupSize[1] = 512;
 238    ctx->Const.MaxComputeVariableGroupSize[2] = 64;
 239    ctx->Const.MaxComputeVariableGroupInvocations = 512;
 240    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits = 16;
 241    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxUniformComponents = 1024;
 242    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxInputComponents = 0; /* not used */
 243    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxOutputComponents = 0; /* not used */
 244
 245    /* Set up default shader compiler options. */
 246    struct gl_shader_compiler_options options;
 247    memset(&options, 0, sizeof(options));
 248    options.MaxUnrollIterations = 32;
 249    options.MaxIfDepth = UINT_MAX;
 250
 251    for (int sh = 0; sh < MESA_SHADER_STAGES; ++sh)
 252       memcpy(&ctx->Const.ShaderCompilerOptions[sh], &options, sizeof(options));
 253
 254    _mesa_locale_init();
 255 }