#include "main/shaderapi.h"
#include "main/shaderobj.h"
#include "main/uniforms.h"
-#include "glsl/glsl_symbol_table.h"
-#include "glsl/ir.h"
-#include "glsl/program.h"
+#include "compiler/glsl/glsl_symbol_table.h"
+#include "compiler/glsl/ir.h"
+#include "compiler/glsl/program.h"
#include "program/hash_table.h"
#include "util/strndup.h"
static GLint
-program_resource_location(struct gl_shader_program *shProg,
- struct gl_program_resource *res, const char *name,
+program_resource_location(struct gl_program_resource *res,
unsigned array_index);
/**
return (type *) res->Data; \
}
-DECL_RESOURCE_FUNC(VAR, ir_variable);
+DECL_RESOURCE_FUNC(VAR, gl_shader_variable);
DECL_RESOURCE_FUNC(UBO, gl_uniform_block);
DECL_RESOURCE_FUNC(UNI, gl_uniform_storage);
DECL_RESOURCE_FUNC(ATC, gl_active_atomic_buffer);
-DECL_RESOURCE_FUNC(XFB, gl_transform_feedback_varying_info);
+DECL_RESOURCE_FUNC(XFV, gl_transform_feedback_varying_info);
+DECL_RESOURCE_FUNC(XFB, gl_transform_feedback_buffer);
DECL_RESOURCE_FUNC(SUB, gl_subroutine_function);
void GLAPIENTRY
-_mesa_BindAttribLocation(GLhandleARB program, GLuint index,
- const GLcharARB *name)
+_mesa_BindAttribLocation(GLuint program, GLuint index,
+ const GLchar *name)
{
GET_CURRENT_CONTEXT(ctx);
}
if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glBindAttribLocation(index)");
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBindAttribLocation(%u >= %u)",
+ index, ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs);
return;
}
*/
}
-static bool
-is_active_attrib(const ir_variable *var)
-{
- if (!var)
- return false;
-
- switch (var->data.mode) {
- case ir_var_shader_in:
- return var->data.location != -1;
-
- case ir_var_system_value:
- /* From GL 4.3 core spec, section 11.1.1 (Vertex Attributes):
- * "For GetActiveAttrib, all active vertex shader input variables
- * are enumerated, including the special built-in inputs gl_VertexID
- * and gl_InstanceID."
- */
- return var->data.location == SYSTEM_VALUE_VERTEX_ID ||
- var->data.location == SYSTEM_VALUE_VERTEX_ID_ZERO_BASE ||
- var->data.location == SYSTEM_VALUE_INSTANCE_ID;
-
- default:
- return false;
- }
-}
-
void GLAPIENTRY
-_mesa_GetActiveAttrib(GLhandleARB program, GLuint desired_index,
- GLsizei maxLength, GLsizei * length, GLint * size,
- GLenum * type, GLcharARB * name)
+_mesa_GetActiveAttrib(GLuint program, GLuint desired_index,
+ GLsizei maxLength, GLsizei * length, GLint * size,
+ GLenum * type, GLchar * name)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_shader_program *shProg;
return;
}
- const ir_variable *const var = RESOURCE_VAR(res);
-
- if (!is_active_attrib(var))
- return;
+ const gl_shader_variable *const var = RESOURCE_VAR(res);
const char *var_name = var->name;
- /* Since gl_VertexID may be lowered to gl_VertexIDMESA, we need to
- * consider gl_VertexIDMESA as gl_VertexID for purposes of checking
- * active attributes.
- */
- if (var->data.mode == ir_var_system_value &&
- var->data.location == SYSTEM_VALUE_VERTEX_ID_ZERO_BASE) {
- var_name = "gl_VertexID";
- }
-
_mesa_copy_string(name, maxLength, length, var_name);
if (size)
}
GLint GLAPIENTRY
-_mesa_GetAttribLocation(GLhandleARB program, const GLcharARB * name)
+_mesa_GetAttribLocation(GLuint program, const GLchar * name)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_shader_program *const shProg =
if (!res)
return -1;
- GLint loc = program_resource_location(shProg, res, name, array_index);
-
- /* The extra check against against 0 is made because of builtin-attribute
- * locations that have offset applied. Function program_resource_location
- * can return built-in attribute locations < 0 and glGetAttribLocation
- * cannot be used on "conventional" attributes.
- *
- * From page 95 of the OpenGL 3.0 spec:
- *
- * "If name is not an active attribute, if name is a conventional
- * attribute, or if an error occurs, -1 will be returned."
- */
- return (loc >= 0) ? loc : -1;
+ return program_resource_location(res, array_index);
}
unsigned
unsigned count = 0;
for (unsigned j = 0; j < shProg->NumProgramResourceList; j++, res++) {
if (res->Type == GL_PROGRAM_INPUT &&
- res->StageReferences & (1 << MESA_SHADER_VERTEX) &&
- is_active_attrib(RESOURCE_VAR(res)))
+ res->StageReferences & (1 << MESA_SHADER_VERTEX))
count++;
}
return count;
if (!res)
return -1;
- GLint loc = program_resource_location(shProg, res, name, array_index);
-
- /* The extra check against against 0 is made because of builtin-attribute
- * locations that have offset applied. Function program_resource_location
- * can return built-in attribute locations < 0 and glGetFragDataLocation
- * cannot be used on "conventional" attributes.
- *
- * From page 95 of the OpenGL 3.0 spec:
- *
- * "If name is not an active attribute, if name is a conventional
- * attribute, or if an error occurs, -1 will be returned."
- */
- return (loc >= 0) ? loc : -1;
+ return program_resource_location(res, array_index);
}
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;
+ return RESOURCE_XFV(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:
{
switch (res->Type) {
case GL_TRANSFORM_FEEDBACK_VARYING:
- return RESOURCE_XFB(res)->Size > 1 ?
- RESOURCE_XFB(res)->Size : 0;
+ return RESOURCE_XFV(res)->Size > 1 ?
+ RESOURCE_XFV(res)->Size : 0;
case GL_PROGRAM_INPUT:
case GL_PROGRAM_OUTPUT:
return RESOURCE_VAR(res)->type->length;
if (rname_last_square_bracket) {
baselen_without_array_index -= strlen(rname_last_square_bracket);
rname_has_array_index_zero =
- (strncmp(rname_last_square_bracket, "[0]\0", 4) == 0) &&
+ (strcmp(rname_last_square_bracket, "[0]") == 0) &&
(baselen_without_array_index == strlen(name));
}
return RESOURCE_SUB(res)->index;
case GL_UNIFORM_BLOCK:
case GL_SHADER_STORAGE_BLOCK:
+ case GL_TRANSFORM_FEEDBACK_BUFFER:
case GL_TRANSFORM_FEEDBACK_VARYING:
default:
return calc_resource_index(shProg, res);
case GL_UNIFORM_BLOCK:
case GL_ATOMIC_COUNTER_BUFFER:
case GL_SHADER_STORAGE_BLOCK:
+ case GL_TRANSFORM_FEEDBACK_BUFFER:
if (_mesa_program_resource_index(shProg, res) == index)
return res;
break;
static bool
add_index_to_name(struct gl_program_resource *res)
{
- bool add_index = !(((res->Type == GL_PROGRAM_INPUT) &&
- res->StageReferences & (1 << MESA_SHADER_GEOMETRY)));
+ bool add_index = !((res->Type == GL_PROGRAM_INPUT &&
+ res->StageReferences & (1 << MESA_SHADER_GEOMETRY |
+ 1 << MESA_SHADER_TESS_CTRL |
+ 1 << MESA_SHADER_TESS_EVAL)) ||
+ (res->Type == GL_PROGRAM_OUTPUT &&
+ res->StageReferences & 1 << MESA_SHADER_TESS_CTRL));
/* Transform feedback varyings have array index already appended
* in their names.
}
static GLint
-program_resource_location(struct gl_shader_program *shProg,
- struct gl_program_resource *res, const char *name,
- unsigned array_index)
+program_resource_location(struct gl_program_resource *res, unsigned array_index)
{
- /* Built-in locations should report GL_INVALID_INDEX. */
- if (is_gl_identifier(name))
- return GL_INVALID_INDEX;
-
- /* VERT_ATTRIB_GENERIC0 and FRAG_RESULT_DATA0 are decremented as these
- * offsets are used internally to differentiate between built-in attributes
- * and user-defined attributes.
- */
switch (res->Type) {
- case GL_PROGRAM_INPUT:
+ case GL_PROGRAM_INPUT: {
+ const gl_shader_variable *var = RESOURCE_VAR(res);
+
+ if (var->location == -1)
+ return -1;
+
/* If the input is an array, fail if the index is out of bounds. */
if (array_index > 0
- && array_index >= RESOURCE_VAR(res)->type->length) {
+ && array_index >= var->type->length) {
return -1;
}
- return RESOURCE_VAR(res)->data.location + array_index - VERT_ATTRIB_GENERIC0;
+ return var->location +
+ (array_index * var->type->without_array()->matrix_columns);
+ }
case GL_PROGRAM_OUTPUT:
+ if (RESOURCE_VAR(res)->location == -1)
+ return -1;
+
/* If the output is an array, fail if the index is out of bounds. */
if (array_index > 0
&& array_index >= RESOURCE_VAR(res)->type->length) {
return -1;
}
- return RESOURCE_VAR(res)->data.location + array_index - FRAG_RESULT_DATA0;
+ return RESOURCE_VAR(res)->location + array_index;
case GL_UNIFORM:
/* If the uniform is built-in, fail. */
if (RESOURCE_UNI(res)->builtin)
if (!res)
return -1;
- return program_resource_location(shProg, res, name, array_index);
+ return program_resource_location(res, array_index);
}
/**
if (!res || !(res->StageReferences & (1 << MESA_SHADER_FRAGMENT)))
return -1;
- return RESOURCE_VAR(res)->data.index;
+ /* From OpenGL 4.5 spec, 7.3 Program Objects
+ * "The value -1 will be returned by either command...
+ * ... or if name identifies an active variable that does not have a
+ * valid location assigned.
+ */
+ if (RESOURCE_VAR(res)->location == -1)
+ return -1;
+ return RESOURCE_VAR(res)->index;
}
static uint8_t
if (res->Type == GL_ATOMIC_COUNTER_BUFFER)
return RESOURCE_ATC(res)->StageReferences[stage];
- if (res->Type == GL_UNIFORM_BLOCK || res->Type == GL_SHADER_STORAGE_BLOCK)
- return shProg->InterfaceBlockStageIndex[stage][index] != -1;
+ if (res->Type == GL_UNIFORM_BLOCK)
+ return shProg->UniformBlocks[index].stageref & (1 << stage);
+
+ if (res->Type == GL_SHADER_STORAGE_BLOCK)
+ return shProg->ShaderStorageBlocks[index].stageref & (1 << stage);
return res->StageReferences & (1 << stage);
}
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_SHADER_STORAGE_BLOCK &&
+ res->Type != GL_TRANSFORM_FEEDBACK_BUFFER)
goto invalid_operation;
if (res->Type == GL_UNIFORM_BLOCK) {
}
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");
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 = RESOURCE_VAR(res)->type->gl_type;
return 1;
case GL_TRANSFORM_FEEDBACK_VARYING:
- *val = RESOURCE_XFB(res)->Type;
+ *val = RESOURCE_XFV(res)->Type;
return 1;
default:
goto invalid_operation;
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.
*/
*val = MAX2(_mesa_program_resource_array_size(res), 1);
return 1;
case GL_TRANSFORM_FEEDBACK_VARYING:
- *val = MAX2(RESOURCE_XFB(res)->Size, 1);
+ *val = RESOURCE_XFV(res)->Size;
return 1;
default:
goto invalid_operation;
}
case GL_OFFSET:
- VALIDATE_TYPE_2(GL_UNIFORM, GL_BUFFER_VARIABLE);
- *val = RESOURCE_UNI(res)->offset;
- return 1;
+ 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;
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 = program_resource_location(shProg, res,
- _mesa_program_resource_name(res),
- 0);
+ *val = RESOURCE_VAR(res)->component;
return 1;
default:
goto invalid_operation;
}
- case GL_LOCATION_INDEX:
+ case GL_LOCATION_INDEX: {
+ int tmp;
if (res->Type != GL_PROGRAM_OUTPUT)
goto invalid_operation;
- *val = RESOURCE_VAR(res)->data.index;
+ tmp = program_resource_location(res, 0);
+ if (tmp == -1)
+ *val = -1;
+ else
+ *val = _mesa_program_resource_location_index(shProg, res->Type,
+ RESOURCE_VAR(res)->name);
return 1;
-
+ }
case GL_NUM_COMPATIBLE_SUBROUTINES:
if (res->Type != GL_VERTEX_SUBROUTINE_UNIFORM &&
res->Type != GL_FRAGMENT_SUBROUTINE_UNIFORM &&
return 1;
case GL_COMPATIBLE_SUBROUTINES: {
const struct gl_uniform_storage *uni;
- struct gl_shader *sh;
+ struct gl_linked_shader *sh;
unsigned count, i;
int j;
switch (res->Type) {
case GL_PROGRAM_INPUT:
case GL_PROGRAM_OUTPUT:
- *val = RESOURCE_VAR(res)->data.patch;
+ *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;
}
}
static bool
-validate_io(const struct gl_shader *input_stage,
- const struct gl_shader *output_stage)
+validate_io(struct gl_shader_program *producer,
+ struct gl_shader_program *consumer,
+ gl_shader_stage producer_stage,
+ gl_shader_stage consumer_stage)
{
- assert(input_stage && output_stage);
+ if (producer == consumer)
+ return true;
+
+ const bool nonarray_stage_to_array_stage =
+ producer_stage != MESA_SHADER_TESS_CTRL &&
+ (consumer_stage == MESA_SHADER_GEOMETRY ||
+ consumer_stage == MESA_SHADER_TESS_CTRL ||
+ consumer_stage == MESA_SHADER_TESS_EVAL);
+
+ bool valid = true;
+
+ void *name_buffer = NULL;
+ size_t name_buffer_size = 0;
+
+ gl_shader_variable const **outputs =
+ (gl_shader_variable const **) calloc(producer->NumProgramResourceList,
+ sizeof(gl_shader_variable *));
+ if (outputs == NULL)
+ return false;
- /* For each output in a, find input in b and do any required checks. */
- foreach_in_list(ir_instruction, out, input_stage->ir) {
- ir_variable *out_var = out->as_variable();
- if (!out_var || out_var->data.mode != ir_var_shader_out)
+ /* Section 7.4.1 (Shader Interface Matching) of the OpenGL ES 3.1 spec
+ * says:
+ *
+ * At an interface between program objects, the set of inputs and
+ * outputs are considered to match exactly if and only if:
+ *
+ * - Every declared input variable has a matching output, as described
+ * above.
+ * - There are no user-defined output variables declared without a
+ * matching input variable declaration.
+ *
+ * Every input has an output, and every output has an input. Scan the list
+ * of producer resources once, and generate the list of outputs. As inputs
+ * and outputs are matched, remove the matched outputs from the set. At
+ * the end, the set must be empty. If the set is not empty, then there is
+ * some output that did not have an input.
+ */
+ unsigned num_outputs = 0;
+ for (unsigned i = 0; i < producer->NumProgramResourceList; i++) {
+ struct gl_program_resource *res = &producer->ProgramResourceList[i];
+
+ if (res->Type != GL_PROGRAM_OUTPUT)
continue;
- foreach_in_list(ir_instruction, in, output_stage->ir) {
- ir_variable *in_var = in->as_variable();
- if (!in_var || in_var->data.mode != ir_var_shader_in)
- continue;
-
- if (strcmp(in_var->name, out_var->name) == 0) {
- /* From OpenGL ES 3.1 spec:
- * "When both shaders are in separate programs, mismatched
- * precision qualifiers will result in a program interface
- * mismatch that will result in program pipeline validation
- * failures, as described in section 7.4.1 (“Shader Interface
- * Matching”) of the OpenGL ES 3.1 Specification."
- */
- if (in_var->data.precision != out_var->data.precision)
- return false;
+ gl_shader_variable const *const var = RESOURCE_VAR(res);
+
+ /* Section 7.4.1 (Shader Interface Matching) of the OpenGL ES 3.1 spec
+ * says:
+ *
+ * Built-in inputs or outputs do not affect interface matching.
+ */
+ if (is_gl_identifier(var->name))
+ continue;
+
+ outputs[num_outputs++] = var;
+ }
+
+ unsigned match_index = 0;
+ for (unsigned i = 0; i < consumer->NumProgramResourceList; i++) {
+ struct gl_program_resource *res = &consumer->ProgramResourceList[i];
+
+ if (res->Type != GL_PROGRAM_INPUT)
+ continue;
+
+ gl_shader_variable const *const consumer_var = RESOURCE_VAR(res);
+ gl_shader_variable const *producer_var = NULL;
+
+ if (is_gl_identifier(consumer_var->name))
+ continue;
+
+ /* Inputs with explicit locations match other outputs with explicit
+ * locations by location instead of by name.
+ */
+ if (consumer_var->explicit_location) {
+ for (unsigned j = 0; j < num_outputs; j++) {
+ const gl_shader_variable *const var = outputs[j];
+
+ if (var->explicit_location &&
+ consumer_var->location == var->location) {
+ producer_var = var;
+ match_index = j;
+ break;
+ }
}
+ } else {
+ char *consumer_name = consumer_var->name;
+
+ if (nonarray_stage_to_array_stage &&
+ consumer_var->interface_type != NULL &&
+ consumer_var->interface_type->is_array() &&
+ !is_gl_identifier(consumer_var->name)) {
+ const size_t name_len = strlen(consumer_var->name);
+
+ if (name_len >= name_buffer_size) {
+ free(name_buffer);
+
+ name_buffer_size = name_len + 1;
+ name_buffer = malloc(name_buffer_size);
+ if (name_buffer == NULL) {
+ valid = false;
+ goto out;
+ }
+ }
+
+ consumer_name = (char *) name_buffer;
+
+ char *s = strchr(consumer_var->name, '[');
+ if (s == NULL) {
+ valid = false;
+ goto out;
+ }
+
+ char *t = strchr(s, ']');
+ if (t == NULL) {
+ valid = false;
+ goto out;
+ }
+
+ assert(t[1] == '.' || t[1] == '[');
+
+ const ptrdiff_t base_name_len = s - consumer_var->name;
+
+ memcpy(consumer_name, consumer_var->name, base_name_len);
+ strcpy(consumer_name + base_name_len, t + 1);
+ }
+
+ for (unsigned j = 0; j < num_outputs; j++) {
+ const gl_shader_variable *const var = outputs[j];
+
+ if (!var->explicit_location &&
+ strcmp(consumer_name, var->name) == 0) {
+ producer_var = var;
+ match_index = j;
+ break;
+ }
+ }
+ }
+
+ /* Section 7.4.1 (Shader Interface Matching) of the OpenGL ES 3.1 spec
+ * says:
+ *
+ * - An output variable is considered to match an input variable in
+ * the subsequent shader if:
+ *
+ * - the two variables match in name, type, and qualification; or
+ *
+ * - the two variables are declared with the same location
+ * qualifier and match in type and qualification.
+ */
+ if (producer_var == NULL) {
+ valid = false;
+ goto out;
+ }
+
+ /* An output cannot match more than one input, so remove the output from
+ * the set of possible outputs.
+ */
+ outputs[match_index] = NULL;
+ num_outputs--;
+ if (match_index < num_outputs)
+ outputs[match_index] = outputs[num_outputs];
+
+ /* Section 9.2.2 (Separable Programs) of the GLSL ES spec says:
+ *
+ * Qualifier Class| Qualifier |in/out
+ * ---------------+-------------+------
+ * Storage | in |
+ * | out | N/A
+ * | uniform |
+ * ---------------+-------------+------
+ * Auxiliary | centroid | No
+ * ---------------+-------------+------
+ * | location | Yes
+ * | Block layout| N/A
+ * | binding | N/A
+ * | offset | N/A
+ * | format | N/A
+ * ---------------+-------------+------
+ * Interpolation | smooth |
+ * | flat | Yes
+ * ---------------+-------------+------
+ * | lowp |
+ * Precision | mediump | Yes
+ * | highp |
+ * ---------------+-------------+------
+ * Variance | invariant | No
+ * ---------------+-------------+------
+ * Memory | all | N/A
+ *
+ * Note that location mismatches are detected by the loops above that
+ * find the producer variable that goes with the consumer variable.
+ */
+ if (nonarray_stage_to_array_stage) {
+ if (!consumer_var->type->is_array() ||
+ consumer_var->type->fields.array != producer_var->type) {
+ valid = false;
+ goto out;
+ }
+
+ if (consumer_var->interface_type != NULL) {
+ if (!consumer_var->interface_type->is_array() ||
+ consumer_var->interface_type->fields.array != producer_var->interface_type) {
+ valid = false;
+ goto out;
+ }
+ } else if (producer_var->interface_type != NULL) {
+ valid = false;
+ goto out;
+ }
+ } else {
+ if (producer_var->type != consumer_var->type) {
+ valid = false;
+ goto out;
+ }
+
+ if (producer_var->interface_type != consumer_var->interface_type) {
+ valid = false;
+ goto out;
+ }
+ }
+
+ if (producer_var->interpolation != consumer_var->interpolation) {
+ valid = false;
+ goto out;
+ }
+
+ if (producer_var->precision != consumer_var->precision) {
+ valid = false;
+ goto out;
+ }
+
+ if (producer_var->outermost_struct_type != consumer_var->outermost_struct_type) {
+ valid = false;
+ goto out;
}
}
- return true;
+
+ out:
+ free(name_buffer);
+ free(outputs);
+ return valid && num_outputs == 0;
}
/**
for (idx = prev + 1; idx < ARRAY_SIZE(pipeline->CurrentProgram); idx++) {
if (shProg[idx]) {
- /* Since we now only validate precision, we can skip this step for
- * desktop GLSL shaders, there precision qualifier is ignored.
- *
- * From OpenGL 4.50 Shading Language spec, section 4.7:
- * "For the purposes of determining if an output from one shader
- * stage matches an input of the next stage, the precision
- * qualifier need not match."
+ /* Pipeline might include both non-compute and a compute program, do
+ * not attempt to validate varyings between non-compute and compute
+ * stage.
*/
- if (shProg[prev]->IsES || shProg[idx]->IsES) {
- if (!validate_io(shProg[prev]->_LinkedShaders[prev],
- shProg[idx]->_LinkedShaders[idx]))
- return false;
- }
+ if (shProg[idx]->_LinkedShaders[idx]->Stage == MESA_SHADER_COMPUTE)
+ break;
+
+ if (!validate_io(shProg[prev], shProg[idx],
+ shProg[prev]->_LinkedShaders[prev]->Stage,
+ shProg[idx]->_LinkedShaders[idx]->Stage))
+ return false;
+
prev = idx;
}
}
projects / mesa.git / blobdiff