unsigned _mesa_program_resource_array_size(struct gl_program_resource *res) { switch (res->Type) { case GL_TRANSFORM_FEEDBACK_VARYING: return RESOURCE_XFB(res)->Size > 1 ? RESOURCE_XFB(res)->Size : 0; case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: return RESOURCE_VAR(res)->data.max_array_access; case GL_UNIFORM: return RESOURCE_UNI(res)->array_elements; case GL_ATOMIC_COUNTER_BUFFER: case GL_UNIFORM_BLOCK: return 0; default: assert(!"support for resource type not implemented"); } return 0; }
unsigned _mesa_program_resource_array_size(struct gl_program_resource *res) { switch (res->Type) { case GL_TRANSFORM_FEEDBACK_VARYING: return RESOURCE_XFB(res)->Size > 1 ? RESOURCE_XFB(res)->Size : 0; case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: return RESOURCE_VAR(res)->type->length; case GL_UNIFORM: case GL_VERTEX_SUBROUTINE_UNIFORM: case GL_GEOMETRY_SUBROUTINE_UNIFORM: case GL_FRAGMENT_SUBROUTINE_UNIFORM: case GL_COMPUTE_SUBROUTINE_UNIFORM: case GL_TESS_CONTROL_SUBROUTINE_UNIFORM: case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM: return RESOURCE_UNI(res)->array_elements; case GL_BUFFER_VARIABLE: /* Unsized arrays */ if (RESOURCE_UNI(res)->array_stride > 0 && RESOURCE_UNI(res)->array_elements == 0) return 1; else return RESOURCE_UNI(res)->array_elements; case GL_VERTEX_SUBROUTINE: case GL_GEOMETRY_SUBROUTINE: case GL_FRAGMENT_SUBROUTINE: case GL_COMPUTE_SUBROUTINE: case GL_TESS_CONTROL_SUBROUTINE: case GL_TESS_EVALUATION_SUBROUTINE: case GL_ATOMIC_COUNTER_BUFFER: case GL_UNIFORM_BLOCK: case GL_SHADER_STORAGE_BLOCK: return 0; default: assert(!"support for resource type not implemented"); } return 0; }
const char* _mesa_program_resource_name(struct gl_program_resource *res) { switch (res->Type) { case GL_UNIFORM_BLOCK: return RESOURCE_UBO(res)->Name; case GL_TRANSFORM_FEEDBACK_VARYING: return RESOURCE_XFB(res)->Name; case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: return RESOURCE_VAR(res)->name; case GL_UNIFORM: return RESOURCE_UNI(res)->name; default: assert(!"support for resource type not implemented"); } return NULL; }
const char* _mesa_program_resource_name(struct gl_program_resource *res) { const ir_variable *var; switch (res->Type) { case GL_UNIFORM_BLOCK: case GL_SHADER_STORAGE_BLOCK: return RESOURCE_UBO(res)->Name; case GL_TRANSFORM_FEEDBACK_VARYING: return RESOURCE_XFB(res)->Name; case GL_PROGRAM_INPUT: var = RESOURCE_VAR(res); /* Special case gl_VertexIDMESA -> gl_VertexID. */ if (var->data.mode == ir_var_system_value && var->data.location == SYSTEM_VALUE_VERTEX_ID_ZERO_BASE) { return "gl_VertexID"; } /* fallthrough */ case GL_PROGRAM_OUTPUT: return RESOURCE_VAR(res)->name; case GL_UNIFORM: case GL_BUFFER_VARIABLE: return RESOURCE_UNI(res)->name; case GL_VERTEX_SUBROUTINE_UNIFORM: case GL_GEOMETRY_SUBROUTINE_UNIFORM: case GL_FRAGMENT_SUBROUTINE_UNIFORM: case GL_COMPUTE_SUBROUTINE_UNIFORM: case GL_TESS_CONTROL_SUBROUTINE_UNIFORM: case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM: return RESOURCE_UNI(res)->name + MESA_SUBROUTINE_PREFIX_LEN; case GL_VERTEX_SUBROUTINE: case GL_GEOMETRY_SUBROUTINE: case GL_FRAGMENT_SUBROUTINE: case GL_COMPUTE_SUBROUTINE: case GL_TESS_CONTROL_SUBROUTINE: case GL_TESS_EVALUATION_SUBROUTINE: return RESOURCE_SUB(res)->name; default: assert(!"support for resource type not implemented"); } return NULL; }
static unsigned get_buffer_property(struct gl_shader_program *shProg, struct gl_program_resource *res, const GLenum prop, GLint *val, const char *caller) { GET_CURRENT_CONTEXT(ctx); if (res->Type != GL_UNIFORM_BLOCK && res->Type != GL_ATOMIC_COUNTER_BUFFER && res->Type != GL_SHADER_STORAGE_BLOCK && res->Type != GL_TRANSFORM_FEEDBACK_BUFFER) goto invalid_operation; if (res->Type == GL_UNIFORM_BLOCK) { switch (prop) { case GL_BUFFER_BINDING: *val = RESOURCE_UBO(res)->Binding; return 1; case GL_BUFFER_DATA_SIZE: *val = RESOURCE_UBO(res)->UniformBufferSize; return 1; case GL_NUM_ACTIVE_VARIABLES: *val = 0; for (unsigned i = 0; i < RESOURCE_UBO(res)->NumUniforms; i++) { const char *iname = RESOURCE_UBO(res)->Uniforms[i].IndexName; struct gl_program_resource *uni = _mesa_program_resource_find_name(shProg, GL_UNIFORM, iname, NULL); if (!uni) continue; (*val)++; } return 1; case GL_ACTIVE_VARIABLES: { unsigned num_values = 0; for (unsigned i = 0; i < RESOURCE_UBO(res)->NumUniforms; i++) { const char *iname = RESOURCE_UBO(res)->Uniforms[i].IndexName; struct gl_program_resource *uni = _mesa_program_resource_find_name(shProg, GL_UNIFORM, iname, NULL); if (!uni) continue; *val++ = _mesa_program_resource_index(shProg, uni); num_values++; } return num_values; } } } else if (res->Type == GL_SHADER_STORAGE_BLOCK) { switch (prop) { case GL_BUFFER_BINDING: *val = RESOURCE_UBO(res)->Binding; return 1; case GL_BUFFER_DATA_SIZE: *val = RESOURCE_UBO(res)->UniformBufferSize; return 1; case GL_NUM_ACTIVE_VARIABLES: *val = 0; for (unsigned i = 0; i < RESOURCE_UBO(res)->NumUniforms; i++) { const char *iname = RESOURCE_UBO(res)->Uniforms[i].IndexName; struct gl_program_resource *uni = _mesa_program_resource_find_name(shProg, GL_BUFFER_VARIABLE, iname, NULL); if (!uni) continue; (*val)++; } return 1; case GL_ACTIVE_VARIABLES: { unsigned num_values = 0; for (unsigned i = 0; i < RESOURCE_UBO(res)->NumUniforms; i++) { const char *iname = RESOURCE_UBO(res)->Uniforms[i].IndexName; struct gl_program_resource *uni = _mesa_program_resource_find_name(shProg, GL_BUFFER_VARIABLE, iname, NULL); if (!uni) continue; *val++ = _mesa_program_resource_index(shProg, uni); num_values++; } return num_values; } } } else if (res->Type == GL_ATOMIC_COUNTER_BUFFER) { switch (prop) { case GL_BUFFER_BINDING: *val = RESOURCE_ATC(res)->Binding; return 1; case GL_BUFFER_DATA_SIZE: *val = RESOURCE_ATC(res)->MinimumSize; return 1; case GL_NUM_ACTIVE_VARIABLES: *val = RESOURCE_ATC(res)->NumUniforms; return 1; case GL_ACTIVE_VARIABLES: for (unsigned i = 0; i < RESOURCE_ATC(res)->NumUniforms; i++) { /* Active atomic buffer contains index to UniformStorage. Find * out gl_program_resource via data pointer and then calculate * index of that uniform. */ unsigned idx = RESOURCE_ATC(res)->Uniforms[i]; struct gl_program_resource *uni = program_resource_find_data(shProg, &shProg->UniformStorage[idx]); assert(uni); *val++ = _mesa_program_resource_index(shProg, uni); } return RESOURCE_ATC(res)->NumUniforms; } } else if (res->Type == GL_TRANSFORM_FEEDBACK_BUFFER) { switch (prop) { case GL_BUFFER_BINDING: *val = RESOURCE_XFB(res)->Binding; return 1; case GL_NUM_ACTIVE_VARIABLES: *val = RESOURCE_XFB(res)->NumVaryings; return 1; case GL_ACTIVE_VARIABLES: int i = 0; for ( ; i < shProg->LinkedTransformFeedback.NumVarying; i++) { unsigned index = shProg->LinkedTransformFeedback.Varyings[i].BufferIndex; struct gl_program_resource *buf_res = _mesa_program_resource_find_index(shProg, GL_TRANSFORM_FEEDBACK_BUFFER, index); assert(buf_res); if (res == buf_res) { *val++ = i; } } return RESOURCE_XFB(res)->NumVaryings; } } assert(!"support for property type not implemented"); invalid_operation: _mesa_error(ctx, GL_INVALID_OPERATION, "%s(%s prop %s)", caller, _mesa_enum_to_string(res->Type), _mesa_enum_to_string(prop)); return 0; }
unsigned _mesa_program_resource_prop(struct gl_shader_program *shProg, struct gl_program_resource *res, GLuint index, const GLenum prop, GLint *val, const char *caller) { GET_CURRENT_CONTEXT(ctx); #define VALIDATE_TYPE(type)\ if (res->Type != type)\ goto invalid_operation; #define VALIDATE_TYPE_2(type1, type2)\ if (res->Type != type1 && res->Type != type2)\ goto invalid_operation; switch(prop) { case GL_NAME_LENGTH: switch (res->Type) { case GL_ATOMIC_COUNTER_BUFFER: case GL_TRANSFORM_FEEDBACK_BUFFER: goto invalid_operation; default: /* Resource name length + terminator. */ *val = _mesa_program_resource_name_len(res) + 1; } return 1; case GL_TYPE: switch (res->Type) { case GL_UNIFORM: case GL_BUFFER_VARIABLE: *val = RESOURCE_UNI(res)->type->gl_type; return 1; case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: *val = RESOURCE_VAR(res)->type->gl_type; return 1; case GL_TRANSFORM_FEEDBACK_VARYING: *val = RESOURCE_XFV(res)->Type; return 1; default: goto invalid_operation; } case GL_ARRAY_SIZE: switch (res->Type) { case GL_UNIFORM: case GL_BUFFER_VARIABLE: case GL_VERTEX_SUBROUTINE_UNIFORM: case GL_GEOMETRY_SUBROUTINE_UNIFORM: case GL_FRAGMENT_SUBROUTINE_UNIFORM: case GL_COMPUTE_SUBROUTINE_UNIFORM: case GL_TESS_CONTROL_SUBROUTINE_UNIFORM: case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM: /* Test if a buffer variable is an array or an unsized array. * Unsized arrays return zero as array size. */ if (RESOURCE_UNI(res)->is_shader_storage && RESOURCE_UNI(res)->array_stride > 0) *val = RESOURCE_UNI(res)->array_elements; else *val = MAX2(RESOURCE_UNI(res)->array_elements, 1); return 1; case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: *val = MAX2(_mesa_program_resource_array_size(res), 1); return 1; case GL_TRANSFORM_FEEDBACK_VARYING: *val = RESOURCE_XFV(res)->Size; return 1; default: goto invalid_operation; } case GL_OFFSET: switch (res->Type) { case GL_UNIFORM: case GL_BUFFER_VARIABLE: *val = RESOURCE_UNI(res)->offset; return 1; case GL_TRANSFORM_FEEDBACK_VARYING: *val = RESOURCE_XFV(res)->Offset; return 1; default: goto invalid_operation; } case GL_BLOCK_INDEX: VALIDATE_TYPE_2(GL_UNIFORM, GL_BUFFER_VARIABLE); *val = RESOURCE_UNI(res)->block_index; return 1; case GL_ARRAY_STRIDE: VALIDATE_TYPE_2(GL_UNIFORM, GL_BUFFER_VARIABLE); *val = RESOURCE_UNI(res)->array_stride; return 1; case GL_MATRIX_STRIDE: VALIDATE_TYPE_2(GL_UNIFORM, GL_BUFFER_VARIABLE); *val = RESOURCE_UNI(res)->matrix_stride; return 1; case GL_IS_ROW_MAJOR: VALIDATE_TYPE_2(GL_UNIFORM, GL_BUFFER_VARIABLE); *val = RESOURCE_UNI(res)->row_major; return 1; case GL_ATOMIC_COUNTER_BUFFER_INDEX: VALIDATE_TYPE(GL_UNIFORM); *val = RESOURCE_UNI(res)->atomic_buffer_index; return 1; case GL_BUFFER_BINDING: case GL_BUFFER_DATA_SIZE: case GL_NUM_ACTIVE_VARIABLES: case GL_ACTIVE_VARIABLES: return get_buffer_property(shProg, res, prop, val, caller); case GL_REFERENCED_BY_COMPUTE_SHADER: if (!_mesa_has_compute_shaders(ctx)) goto invalid_enum; /* fallthrough */ case GL_REFERENCED_BY_VERTEX_SHADER: case GL_REFERENCED_BY_TESS_CONTROL_SHADER: case GL_REFERENCED_BY_TESS_EVALUATION_SHADER: case GL_REFERENCED_BY_GEOMETRY_SHADER: case GL_REFERENCED_BY_FRAGMENT_SHADER: switch (res->Type) { case GL_UNIFORM: case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: case GL_UNIFORM_BLOCK: case GL_BUFFER_VARIABLE: case GL_SHADER_STORAGE_BLOCK: case GL_ATOMIC_COUNTER_BUFFER: *val = is_resource_referenced(shProg, res, index, stage_from_enum(prop)); return 1; default: goto invalid_operation; } case GL_LOCATION: switch (res->Type) { case GL_UNIFORM: case GL_VERTEX_SUBROUTINE_UNIFORM: case GL_GEOMETRY_SUBROUTINE_UNIFORM: case GL_FRAGMENT_SUBROUTINE_UNIFORM: case GL_COMPUTE_SUBROUTINE_UNIFORM: case GL_TESS_CONTROL_SUBROUTINE_UNIFORM: case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM: case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: *val = program_resource_location(res, 0); return 1; default: goto invalid_operation; } case GL_LOCATION_COMPONENT: switch (res->Type) { case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: *val = RESOURCE_VAR(res)->component; return 1; default: goto invalid_operation; } case GL_LOCATION_INDEX: if (res->Type != GL_PROGRAM_OUTPUT) goto invalid_operation; *val = RESOURCE_VAR(res)->index; return 1; case GL_NUM_COMPATIBLE_SUBROUTINES: if (res->Type != GL_VERTEX_SUBROUTINE_UNIFORM && res->Type != GL_FRAGMENT_SUBROUTINE_UNIFORM && res->Type != GL_GEOMETRY_SUBROUTINE_UNIFORM && res->Type != GL_COMPUTE_SUBROUTINE_UNIFORM && res->Type != GL_TESS_CONTROL_SUBROUTINE_UNIFORM && res->Type != GL_TESS_EVALUATION_SUBROUTINE_UNIFORM) goto invalid_operation; *val = RESOURCE_UNI(res)->num_compatible_subroutines; return 1; case GL_COMPATIBLE_SUBROUTINES: { const struct gl_uniform_storage *uni; struct gl_shader *sh; unsigned count, i; int j; if (res->Type != GL_VERTEX_SUBROUTINE_UNIFORM && res->Type != GL_FRAGMENT_SUBROUTINE_UNIFORM && res->Type != GL_GEOMETRY_SUBROUTINE_UNIFORM && res->Type != GL_COMPUTE_SUBROUTINE_UNIFORM && res->Type != GL_TESS_CONTROL_SUBROUTINE_UNIFORM && res->Type != GL_TESS_EVALUATION_SUBROUTINE_UNIFORM) goto invalid_operation; uni = RESOURCE_UNI(res); sh = shProg->_LinkedShaders[_mesa_shader_stage_from_subroutine_uniform(res->Type)]; count = 0; for (i = 0; i < sh->NumSubroutineFunctions; i++) { struct gl_subroutine_function *fn = &sh->SubroutineFunctions[i]; for (j = 0; j < fn->num_compat_types; j++) { if (fn->types[j] == uni->type) { val[count++] = i; break; } } } return count; } case GL_TOP_LEVEL_ARRAY_SIZE: VALIDATE_TYPE(GL_BUFFER_VARIABLE); *val = RESOURCE_UNI(res)->top_level_array_size; return 1; case GL_TOP_LEVEL_ARRAY_STRIDE: VALIDATE_TYPE(GL_BUFFER_VARIABLE); *val = RESOURCE_UNI(res)->top_level_array_stride; return 1; /* GL_ARB_tessellation_shader */ case GL_IS_PER_PATCH: switch (res->Type) { case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: *val = RESOURCE_VAR(res)->patch; return 1; default: goto invalid_operation; } case GL_TRANSFORM_FEEDBACK_BUFFER_INDEX: VALIDATE_TYPE(GL_TRANSFORM_FEEDBACK_VARYING); *val = RESOURCE_XFV(res)->BufferIndex; return 1; case GL_TRANSFORM_FEEDBACK_BUFFER_STRIDE: VALIDATE_TYPE(GL_TRANSFORM_FEEDBACK_BUFFER); *val = RESOURCE_XFB(res)->Stride * 4; return 1; default: goto invalid_enum; } #undef VALIDATE_TYPE #undef VALIDATE_TYPE_2 invalid_enum: _mesa_error(ctx, GL_INVALID_ENUM, "%s(%s prop %s)", caller, _mesa_enum_to_string(res->Type), _mesa_enum_to_string(prop)); return 0; invalid_operation: _mesa_error(ctx, GL_INVALID_OPERATION, "%s(%s prop %s)", caller, _mesa_enum_to_string(res->Type), _mesa_enum_to_string(prop)); return 0; }
unsigned _mesa_program_resource_prop(struct gl_shader_program *shProg, struct gl_program_resource *res, GLuint index, const GLenum prop, GLint *val, const char *caller) { GET_CURRENT_CONTEXT(ctx); #define VALIDATE_TYPE(type)\ if (res->Type != type)\ goto invalid_operation; switch(prop) { case GL_NAME_LENGTH: if (res->Type == GL_ATOMIC_COUNTER_BUFFER) goto invalid_operation; /* Base name +3 if array '[0]' + terminator. */ *val = strlen(_mesa_program_resource_name(res)) + (_mesa_program_resource_array_size(res) > 0 ? 3 : 0) + 1; return 1; case GL_TYPE: switch (res->Type) { case GL_UNIFORM: *val = RESOURCE_UNI(res)->type->gl_type; return 1; case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: *val = RESOURCE_VAR(res)->type->gl_type; return 1; case GL_TRANSFORM_FEEDBACK_VARYING: *val = RESOURCE_XFB(res)->Type; return 1; default: goto invalid_operation; } case GL_ARRAY_SIZE: switch (res->Type) { case GL_UNIFORM: *val = MAX2(RESOURCE_UNI(res)->array_elements, 1); return 1; case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: *val = MAX2(RESOURCE_VAR(res)->type->length, 1); return 1; case GL_TRANSFORM_FEEDBACK_VARYING: *val = MAX2(RESOURCE_XFB(res)->Size, 1); return 1; default: goto invalid_operation; } case GL_OFFSET: VALIDATE_TYPE(GL_UNIFORM); *val = RESOURCE_UNI(res)->offset; return 1; case GL_BLOCK_INDEX: VALIDATE_TYPE(GL_UNIFORM); *val = RESOURCE_UNI(res)->block_index; return 1; case GL_ARRAY_STRIDE: VALIDATE_TYPE(GL_UNIFORM); *val = RESOURCE_UNI(res)->array_stride; return 1; case GL_MATRIX_STRIDE: VALIDATE_TYPE(GL_UNIFORM); *val = RESOURCE_UNI(res)->matrix_stride; return 1; case GL_IS_ROW_MAJOR: VALIDATE_TYPE(GL_UNIFORM); *val = RESOURCE_UNI(res)->row_major; return 1; case GL_ATOMIC_COUNTER_BUFFER_INDEX: VALIDATE_TYPE(GL_UNIFORM); *val = RESOURCE_UNI(res)->atomic_buffer_index; return 1; case GL_BUFFER_BINDING: case GL_BUFFER_DATA_SIZE: case GL_NUM_ACTIVE_VARIABLES: case GL_ACTIVE_VARIABLES: return get_buffer_property(shProg, res, prop, val, caller); case GL_REFERENCED_BY_COMPUTE_SHADER: if (!_mesa_has_compute_shaders(ctx)) goto invalid_enum; /* fallthrough */ case GL_REFERENCED_BY_VERTEX_SHADER: case GL_REFERENCED_BY_GEOMETRY_SHADER: case GL_REFERENCED_BY_FRAGMENT_SHADER: switch (res->Type) { case GL_UNIFORM: case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: case GL_UNIFORM_BLOCK: case GL_ATOMIC_COUNTER_BUFFER: *val = is_resource_referenced(shProg, res, index, stage_from_enum(prop)); return 1; default: goto invalid_operation; } case GL_LOCATION: switch (res->Type) { case GL_UNIFORM: case GL_PROGRAM_INPUT: case GL_PROGRAM_OUTPUT: *val = program_resource_location(shProg, res, _mesa_program_resource_name(res)); return 1; default: goto invalid_operation; } case GL_LOCATION_INDEX: if (res->Type != GL_PROGRAM_OUTPUT) goto invalid_operation; *val = RESOURCE_VAR(res)->data.index; return 1; /* GL_ARB_tessellation_shader */ case GL_IS_PER_PATCH: case GL_REFERENCED_BY_TESS_CONTROL_SHADER: case GL_REFERENCED_BY_TESS_EVALUATION_SHADER: default: goto invalid_enum; } #undef VALIDATE_TYPE invalid_enum: _mesa_error(ctx, GL_INVALID_ENUM, "%s(%s prop %s)", caller, _mesa_lookup_enum_by_nr(res->Type), _mesa_lookup_enum_by_nr(prop)); return 0; invalid_operation: _mesa_error(ctx, GL_INVALID_OPERATION, "%s(%s prop %s)", caller, _mesa_lookup_enum_by_nr(res->Type), _mesa_lookup_enum_by_nr(prop)); return 0; }