"uniform block layout qualifiers row_major and "
"column_major may not be applied to variables "
"outside of uniform blocks");
- } else if (!type->is_matrix()) {
+ } else if (!type->without_array()->is_matrix()) {
/* The OpenGL ES 3.0 conformance tests did not originally allow
* matrix layout qualifiers on non-matrices. However, the OpenGL
* 4.4 and OpenGL ES 3.0 (revision TBD) specifications were
"uniform block layout qualifiers row_major and "
"column_major applied to non-matrix types may "
"be rejected by older compilers");
- } else if (type->is_record()) {
- /* We allow 'layout(row_major)' on structure types because it's the only
- * way to get row-major layouts on matrices contained in structures.
- */
- _mesa_glsl_warning(loc, state,
- "uniform block layout qualifiers row_major and "
- "column_major applied to structure types is not "
- "strictly conformant and may be rejected by other "
- "compilers");
}
}
static bool
-validate_binding_qualifier(struct _mesa_glsl_parse_state *state,
+process_qualifier_constant(struct _mesa_glsl_parse_state *state,
YYLTYPE *loc,
- const glsl_type *type,
- const ast_type_qualifier *qual)
+ const char *qual_indentifier,
+ ast_expression *const_expression,
+ unsigned *value)
+{
+ exec_list dummy_instructions;
+
+ if (const_expression == NULL) {
+ *value = 0;
+ return true;
+ }
+
+ ir_rvalue *const ir = const_expression->hir(&dummy_instructions, state);
+
+ ir_constant *const const_int = ir->constant_expression_value();
+ if (const_int == NULL || !const_int->type->is_integer()) {
+ _mesa_glsl_error(loc, state, "%s must be an integral constant "
+ "expression", qual_indentifier);
+ return false;
+ }
+
+ if (const_int->value.i[0] < 0) {
+ _mesa_glsl_error(loc, state, "%s layout qualifier is invalid (%d < 0)",
+ qual_indentifier, const_int->value.u[0]);
+ return false;
+ }
+
+ /* If the location is const (and we've verified that
+ * it is) then no instructions should have been emitted
+ * when we converted it to HIR. If they were emitted,
+ * then either the location isn't const after all, or
+ * we are emitting unnecessary instructions.
+ */
+ assert(dummy_instructions.is_empty());
+
+ *value = const_int->value.u[0];
+ return true;
+}
+
+static bool
+validate_stream_qualifier(YYLTYPE *loc, struct _mesa_glsl_parse_state *state,
+ unsigned stream)
+{
+ if (stream >= state->ctx->Const.MaxVertexStreams) {
+ _mesa_glsl_error(loc, state,
+ "invalid stream specified %d is larger than "
+ "MAX_VERTEX_STREAMS - 1 (%d).",
+ stream, state->ctx->Const.MaxVertexStreams - 1);
+ return false;
+ }
+
+ return true;
+}
+
+static void
+apply_explicit_binding(struct _mesa_glsl_parse_state *state,
+ YYLTYPE *loc,
+ ir_variable *var,
+ const glsl_type *type,
+ const ast_type_qualifier *qual)
{
if (!qual->flags.q.uniform && !qual->flags.q.buffer) {
_mesa_glsl_error(loc, state,
"the \"binding\" qualifier only applies to uniforms and "
"shader storage buffer objects");
- return false;
+ return;
}
- if (qual->binding < 0) {
- _mesa_glsl_error(loc, state, "binding values must be >= 0");
- return false;
+ unsigned qual_binding;
+ if (!process_qualifier_constant(state, loc, "binding", qual->binding,
+ &qual_binding)) {
+ return;
}
const struct gl_context *const ctx = state->ctx;
unsigned elements = type->is_array() ? type->arrays_of_arrays_size() : 1;
- unsigned max_index = qual->binding + elements - 1;
+ unsigned max_index = qual_binding + elements - 1;
const glsl_type *base_type = type->without_array();
if (base_type->is_interface()) {
*/
if (qual->flags.q.uniform &&
max_index >= ctx->Const.MaxUniformBufferBindings) {
- _mesa_glsl_error(loc, state, "layout(binding = %d) for %d UBOs exceeds "
+ _mesa_glsl_error(loc, state, "layout(binding = %u) for %d UBOs exceeds "
"the maximum number of UBO binding points (%d)",
- qual->binding, elements,
+ qual_binding, elements,
ctx->Const.MaxUniformBufferBindings);
- return false;
+ return;
}
/* SSBOs. From page 67 of the GLSL 4.30 specification:
*/
if (qual->flags.q.buffer &&
max_index >= ctx->Const.MaxShaderStorageBufferBindings) {
- _mesa_glsl_error(loc, state, "layout(binding = %d) for %d SSBOs exceeds "
+ _mesa_glsl_error(loc, state, "layout(binding = %u) for %d SSBOs exceeds "
"the maximum number of SSBO binding points (%d)",
- qual->binding, elements,
+ qual_binding, elements,
ctx->Const.MaxShaderStorageBufferBindings);
- return false;
+ return;
}
} else if (base_type->is_sampler()) {
/* Samplers. From page 63 of the GLSL 4.20 specification:
if (max_index >= limit) {
_mesa_glsl_error(loc, state, "layout(binding = %d) for %d samplers "
"exceeds the maximum number of texture image units "
- "(%d)", qual->binding, elements, limit);
+ "(%u)", qual_binding, elements, limit);
- return false;
+ return;
}
} else if (base_type->contains_atomic()) {
assert(ctx->Const.MaxAtomicBufferBindings <= MAX_COMBINED_ATOMIC_BUFFERS);
- if (unsigned(qual->binding) >= ctx->Const.MaxAtomicBufferBindings) {
+ if (qual_binding >= ctx->Const.MaxAtomicBufferBindings) {
_mesa_glsl_error(loc, state, "layout(binding = %d) exceeds the "
" maximum number of atomic counter buffer bindings"
- "(%d)", qual->binding,
+ "(%u)", qual_binding,
ctx->Const.MaxAtomicBufferBindings);
- return false;
+ return;
}
} else if (state->is_version(420, 310) && base_type->is_image()) {
assert(ctx->Const.MaxImageUnits <= MAX_IMAGE_UNITS);
_mesa_glsl_error(loc, state, "Image binding %d exceeds the "
" maximum number of image units (%d)", max_index,
ctx->Const.MaxImageUnits);
- return false;
+ return;
}
} else {
_mesa_glsl_error(loc, state,
"the \"binding\" qualifier only applies to uniform "
"blocks, opaque variables, or arrays thereof");
- return false;
+ return;
}
- return true;
+ var->data.explicit_binding = true;
+ var->data.binding = qual_binding;
+
+ return;
}
static void
-validate_explicit_location(const struct ast_type_qualifier *qual,
- ir_variable *var,
- struct _mesa_glsl_parse_state *state,
- YYLTYPE *loc)
+apply_explicit_location(const struct ast_type_qualifier *qual,
+ ir_variable *var,
+ struct _mesa_glsl_parse_state *state,
+ YYLTYPE *loc)
{
bool fail = false;
+ unsigned qual_location;
+ if (!process_qualifier_constant(state, loc, "location", qual->location,
+ &qual_location)) {
+ return;
+ }
+
/* Checks for GL_ARB_explicit_uniform_location. */
if (qual->flags.q.uniform) {
if (!state->check_explicit_uniform_location_allowed(loc, var))
return;
const struct gl_context *const ctx = state->ctx;
- unsigned max_loc = qual->location + var->type->uniform_locations() - 1;
+ unsigned max_loc = qual_location + var->type->uniform_locations() - 1;
if (max_loc >= ctx->Const.MaxUserAssignableUniformLocations) {
_mesa_glsl_error(loc, state, "location(s) consumed by uniform %s "
}
var->data.explicit_location = true;
- var->data.location = qual->location;
+ var->data.location = qual_location;
return;
}
switch (state->stage) {
case MESA_SHADER_VERTEX:
var->data.location = (var->data.mode == ir_var_shader_in)
- ? (qual->location + VERT_ATTRIB_GENERIC0)
- : (qual->location + VARYING_SLOT_VAR0);
+ ? (qual_location + VERT_ATTRIB_GENERIC0)
+ : (qual_location + VARYING_SLOT_VAR0);
break;
case MESA_SHADER_TESS_CTRL:
case MESA_SHADER_TESS_EVAL:
case MESA_SHADER_GEOMETRY:
if (var->data.patch)
- var->data.location = qual->location + VARYING_SLOT_PATCH0;
+ var->data.location = qual_location + VARYING_SLOT_PATCH0;
else
- var->data.location = qual->location + VARYING_SLOT_VAR0;
+ var->data.location = qual_location + VARYING_SLOT_VAR0;
break;
case MESA_SHADER_FRAGMENT:
var->data.location = (var->data.mode == ir_var_shader_out)
- ? (qual->location + FRAG_RESULT_DATA0)
- : (qual->location + VARYING_SLOT_VAR0);
+ ? (qual_location + FRAG_RESULT_DATA0)
+ : (qual_location + VARYING_SLOT_VAR0);
break;
case MESA_SHADER_COMPUTE:
assert(!"Unexpected shader type");
break;
}
- if (qual->flags.q.explicit_index) {
+ /* Check if index was set for the uniform instead of the function */
+ if (qual->flags.q.explicit_index && qual->flags.q.subroutine) {
+ _mesa_glsl_error(loc, state, "an index qualifier can only be "
+ "used with subroutine functions");
+ return;
+ }
+
+ unsigned qual_index;
+ if (qual->flags.q.explicit_index &&
+ process_qualifier_constant(state, loc, "index", qual->index,
+ &qual_index)) {
/* From the GLSL 4.30 specification, section 4.4.2 (Output
* Layout Qualifiers):
*
* Older specifications don't mandate a behavior; we take
* this as a clarification and always generate the error.
*/
- if (qual->index < 0 || qual->index > 1) {
+ if (qual_index > 1) {
_mesa_glsl_error(loc, state,
"explicit index may only be 0 or 1");
} else {
var->data.explicit_index = true;
- var->data.index = qual->index;
+ var->data.index = qual_index;
}
}
}
}
}
+static void
+apply_layout_qualifier_to_variable(const struct ast_type_qualifier *qual,
+ ir_variable *var,
+ struct _mesa_glsl_parse_state *state,
+ YYLTYPE *loc)
+{
+ if (var->name != NULL && strcmp(var->name, "gl_FragCoord") == 0) {
+
+ /* Section 4.3.8.1, page 39 of GLSL 1.50 spec says:
+ *
+ * "Within any shader, the first redeclarations of gl_FragCoord
+ * must appear before any use of gl_FragCoord."
+ *
+ * Generate a compiler error if above condition is not met by the
+ * fragment shader.
+ */
+ ir_variable *earlier = state->symbols->get_variable("gl_FragCoord");
+ if (earlier != NULL &&
+ earlier->data.used &&
+ !state->fs_redeclares_gl_fragcoord) {
+ _mesa_glsl_error(loc, state,
+ "gl_FragCoord used before its first redeclaration "
+ "in fragment shader");
+ }
+
+ /* Make sure all gl_FragCoord redeclarations specify the same layout
+ * qualifiers.
+ */
+ if (is_conflicting_fragcoord_redeclaration(state, qual)) {
+ const char *const qual_string =
+ get_layout_qualifier_string(qual->flags.q.origin_upper_left,
+ qual->flags.q.pixel_center_integer);
+
+ const char *const state_string =
+ get_layout_qualifier_string(state->fs_origin_upper_left,
+ state->fs_pixel_center_integer);
+
+ _mesa_glsl_error(loc, state,
+ "gl_FragCoord redeclared with different layout "
+ "qualifiers (%s) and (%s) ",
+ state_string,
+ qual_string);
+ }
+ state->fs_origin_upper_left = qual->flags.q.origin_upper_left;
+ state->fs_pixel_center_integer = qual->flags.q.pixel_center_integer;
+ state->fs_redeclares_gl_fragcoord_with_no_layout_qualifiers =
+ !qual->flags.q.origin_upper_left && !qual->flags.q.pixel_center_integer;
+ state->fs_redeclares_gl_fragcoord =
+ state->fs_origin_upper_left ||
+ state->fs_pixel_center_integer ||
+ state->fs_redeclares_gl_fragcoord_with_no_layout_qualifiers;
+ }
+
+ var->data.pixel_center_integer = qual->flags.q.pixel_center_integer;
+ var->data.origin_upper_left = qual->flags.q.origin_upper_left;
+ if ((qual->flags.q.origin_upper_left || qual->flags.q.pixel_center_integer)
+ && (strcmp(var->name, "gl_FragCoord") != 0)) {
+ const char *const qual_string = (qual->flags.q.origin_upper_left)
+ ? "origin_upper_left" : "pixel_center_integer";
+
+ _mesa_glsl_error(loc, state,
+ "layout qualifier `%s' can only be applied to "
+ "fragment shader input `gl_FragCoord'",
+ qual_string);
+ }
+
+ if (qual->flags.q.explicit_location) {
+ apply_explicit_location(qual, var, state, loc);
+ } else if (qual->flags.q.explicit_index) {
+ if (!qual->flags.q.subroutine_def)
+ _mesa_glsl_error(loc, state,
+ "explicit index requires explicit location");
+ }
+
+ if (qual->flags.q.explicit_binding) {
+ apply_explicit_binding(state, loc, var, var->type, qual);
+ }
+
+ if (state->stage == MESA_SHADER_GEOMETRY &&
+ qual->flags.q.out && qual->flags.q.stream) {
+ unsigned qual_stream;
+ if (process_qualifier_constant(state, loc, "stream", qual->stream,
+ &qual_stream) &&
+ validate_stream_qualifier(loc, state, qual_stream)) {
+ var->data.stream = qual_stream;
+ }
+ }
+
+ if (var->type->contains_atomic()) {
+ if (var->data.mode == ir_var_uniform) {
+ if (var->data.explicit_binding) {
+ unsigned *offset =
+ &state->atomic_counter_offsets[var->data.binding];
+
+ if (*offset % ATOMIC_COUNTER_SIZE)
+ _mesa_glsl_error(loc, state,
+ "misaligned atomic counter offset");
+
+ var->data.atomic.offset = *offset;
+ *offset += var->type->atomic_size();
+
+ } else {
+ _mesa_glsl_error(loc, state,
+ "atomic counters require explicit binding point");
+ }
+ } else if (var->data.mode != ir_var_function_in) {
+ _mesa_glsl_error(loc, state, "atomic counters may only be declared as "
+ "function parameters or uniform-qualified "
+ "global variables");
+ }
+ }
+
+ /* Is the 'layout' keyword used with parameters that allow relaxed checking.
+ * Many implementations of GL_ARB_fragment_coord_conventions_enable and some
+ * implementations (only Mesa?) GL_ARB_explicit_attrib_location_enable
+ * allowed the layout qualifier to be used with 'varying' and 'attribute'.
+ * These extensions and all following extensions that add the 'layout'
+ * keyword have been modified to require the use of 'in' or 'out'.
+ *
+ * The following extension do not allow the deprecated keywords:
+ *
+ * GL_AMD_conservative_depth
+ * GL_ARB_conservative_depth
+ * GL_ARB_gpu_shader5
+ * GL_ARB_separate_shader_objects
+ * GL_ARB_tessellation_shader
+ * GL_ARB_transform_feedback3
+ * GL_ARB_uniform_buffer_object
+ *
+ * It is unknown whether GL_EXT_shader_image_load_store or GL_NV_gpu_shader5
+ * allow layout with the deprecated keywords.
+ */
+ const bool relaxed_layout_qualifier_checking =
+ state->ARB_fragment_coord_conventions_enable;
+
+ const bool uses_deprecated_qualifier = qual->flags.q.attribute
+ || qual->flags.q.varying;
+ if (qual->has_layout() && uses_deprecated_qualifier) {
+ if (relaxed_layout_qualifier_checking) {
+ _mesa_glsl_warning(loc, state,
+ "`layout' qualifier may not be used with "
+ "`attribute' or `varying'");
+ } else {
+ _mesa_glsl_error(loc, state,
+ "`layout' qualifier may not be used with "
+ "`attribute' or `varying'");
+ }
+ }
+
+ /* Layout qualifiers for gl_FragDepth, which are enabled by extension
+ * AMD_conservative_depth.
+ */
+ int depth_layout_count = qual->flags.q.depth_any
+ + qual->flags.q.depth_greater
+ + qual->flags.q.depth_less
+ + qual->flags.q.depth_unchanged;
+ if (depth_layout_count > 0
+ && !state->AMD_conservative_depth_enable
+ && !state->ARB_conservative_depth_enable) {
+ _mesa_glsl_error(loc, state,
+ "extension GL_AMD_conservative_depth or "
+ "GL_ARB_conservative_depth must be enabled "
+ "to use depth layout qualifiers");
+ } else if (depth_layout_count > 0
+ && strcmp(var->name, "gl_FragDepth") != 0) {
+ _mesa_glsl_error(loc, state,
+ "depth layout qualifiers can be applied only to "
+ "gl_FragDepth");
+ } else if (depth_layout_count > 1
+ && strcmp(var->name, "gl_FragDepth") == 0) {
+ _mesa_glsl_error(loc, state,
+ "at most one depth layout qualifier can be applied to "
+ "gl_FragDepth");
+ }
+ if (qual->flags.q.depth_any)
+ var->data.depth_layout = ir_depth_layout_any;
+ else if (qual->flags.q.depth_greater)
+ var->data.depth_layout = ir_depth_layout_greater;
+ else if (qual->flags.q.depth_less)
+ var->data.depth_layout = ir_depth_layout_less;
+ else if (qual->flags.q.depth_unchanged)
+ var->data.depth_layout = ir_depth_layout_unchanged;
+ else
+ var->data.depth_layout = ir_depth_layout_none;
+
+ if (qual->flags.q.std140 ||
+ qual->flags.q.std430 ||
+ qual->flags.q.packed ||
+ qual->flags.q.shared) {
+ _mesa_glsl_error(loc, state,
+ "uniform and shader storage block layout qualifiers "
+ "std140, std430, packed, and shared can only be "
+ "applied to uniform or shader storage blocks, not "
+ "members");
+ }
+
+ if (qual->flags.q.row_major || qual->flags.q.column_major) {
+ validate_matrix_layout_for_type(state, loc, var->type, var);
+ }
+
+ /* From section 4.4.1.3 of the GLSL 4.50 specification (Fragment Shader
+ * Inputs):
+ *
+ * "Fragment shaders also allow the following layout qualifier on in only
+ * (not with variable declarations)
+ * layout-qualifier-id
+ * early_fragment_tests
+ * [...]"
+ */
+ if (qual->flags.q.early_fragment_tests) {
+ _mesa_glsl_error(loc, state, "early_fragment_tests layout qualifier only "
+ "valid in fragment shader input layout declaration.");
+ }
+}
+
static void
apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual,
ir_variable *var,
select_gles_precision(qual->precision, var->type, state, loc);
}
- if (state->stage == MESA_SHADER_GEOMETRY &&
- qual->flags.q.out && qual->flags.q.stream) {
- var->data.stream = qual->stream;
- }
-
if (qual->flags.q.patch)
var->data.patch = 1;
var->data.invariant = true;
break;
case MESA_SHADER_FRAGMENT:
- if (var->data.mode == ir_var_shader_in)
- var->data.invariant = true;
- break;
- case MESA_SHADER_COMPUTE:
- /* Invariance isn't meaningful in compute shaders. */
- break;
- }
- }
-
- var->data.interpolation =
- interpret_interpolation_qualifier(qual, (ir_variable_mode) var->data.mode,
- state, loc);
-
- var->data.pixel_center_integer = qual->flags.q.pixel_center_integer;
- var->data.origin_upper_left = qual->flags.q.origin_upper_left;
- if ((qual->flags.q.origin_upper_left || qual->flags.q.pixel_center_integer)
- && (strcmp(var->name, "gl_FragCoord") != 0)) {
- const char *const qual_string = (qual->flags.q.origin_upper_left)
- ? "origin_upper_left" : "pixel_center_integer";
-
- _mesa_glsl_error(loc, state,
- "layout qualifier `%s' can only be applied to "
- "fragment shader input `gl_FragCoord'",
- qual_string);
- }
-
- if (var->name != NULL && strcmp(var->name, "gl_FragCoord") == 0) {
-
- /* Section 4.3.8.1, page 39 of GLSL 1.50 spec says:
- *
- * "Within any shader, the first redeclarations of gl_FragCoord
- * must appear before any use of gl_FragCoord."
- *
- * Generate a compiler error if above condition is not met by the
- * fragment shader.
- */
- ir_variable *earlier = state->symbols->get_variable("gl_FragCoord");
- if (earlier != NULL &&
- earlier->data.used &&
- !state->fs_redeclares_gl_fragcoord) {
- _mesa_glsl_error(loc, state,
- "gl_FragCoord used before its first redeclaration "
- "in fragment shader");
- }
-
- /* Make sure all gl_FragCoord redeclarations specify the same layout
- * qualifiers.
- */
- if (is_conflicting_fragcoord_redeclaration(state, qual)) {
- const char *const qual_string =
- get_layout_qualifier_string(qual->flags.q.origin_upper_left,
- qual->flags.q.pixel_center_integer);
-
- const char *const state_string =
- get_layout_qualifier_string(state->fs_origin_upper_left,
- state->fs_pixel_center_integer);
-
- _mesa_glsl_error(loc, state,
- "gl_FragCoord redeclared with different layout "
- "qualifiers (%s) and (%s) ",
- state_string,
- qual_string);
- }
- state->fs_origin_upper_left = qual->flags.q.origin_upper_left;
- state->fs_pixel_center_integer = qual->flags.q.pixel_center_integer;
- state->fs_redeclares_gl_fragcoord_with_no_layout_qualifiers =
- !qual->flags.q.origin_upper_left && !qual->flags.q.pixel_center_integer;
- state->fs_redeclares_gl_fragcoord =
- state->fs_origin_upper_left ||
- state->fs_pixel_center_integer ||
- state->fs_redeclares_gl_fragcoord_with_no_layout_qualifiers;
- }
-
- if (qual->flags.q.explicit_location) {
- validate_explicit_location(qual, var, state, loc);
- } else if (qual->flags.q.explicit_index) {
- _mesa_glsl_error(loc, state, "explicit index requires explicit location");
- }
-
- if (qual->flags.q.explicit_binding &&
- validate_binding_qualifier(state, loc, var->type, qual)) {
- var->data.explicit_binding = true;
- var->data.binding = qual->binding;
- }
-
- if (var->type->contains_atomic()) {
- if (var->data.mode == ir_var_uniform) {
- if (var->data.explicit_binding) {
- unsigned *offset =
- &state->atomic_counter_offsets[var->data.binding];
-
- if (*offset % ATOMIC_COUNTER_SIZE)
- _mesa_glsl_error(loc, state,
- "misaligned atomic counter offset");
-
- var->data.atomic.offset = *offset;
- *offset += var->type->atomic_size();
-
- } else {
- _mesa_glsl_error(loc, state,
- "atomic counters require explicit binding point");
- }
- } else if (var->data.mode != ir_var_function_in) {
- _mesa_glsl_error(loc, state, "atomic counters may only be declared as "
- "function parameters or uniform-qualified "
- "global variables");
+ if (var->data.mode == ir_var_shader_in)
+ var->data.invariant = true;
+ break;
+ case MESA_SHADER_COMPUTE:
+ /* Invariance isn't meaningful in compute shaders. */
+ break;
}
}
+ var->data.interpolation =
+ interpret_interpolation_qualifier(qual, (ir_variable_mode) var->data.mode,
+ state, loc);
+
/* Does the declaration use the deprecated 'attribute' or 'varying'
* keywords?
*/
"`out' or `varying' variables between shader stages");
}
-
- /* Is the 'layout' keyword used with parameters that allow relaxed checking.
- * Many implementations of GL_ARB_fragment_coord_conventions_enable and some
- * implementations (only Mesa?) GL_ARB_explicit_attrib_location_enable
- * allowed the layout qualifier to be used with 'varying' and 'attribute'.
- * These extensions and all following extensions that add the 'layout'
- * keyword have been modified to require the use of 'in' or 'out'.
- *
- * The following extension do not allow the deprecated keywords:
- *
- * GL_AMD_conservative_depth
- * GL_ARB_conservative_depth
- * GL_ARB_gpu_shader5
- * GL_ARB_separate_shader_objects
- * GL_ARB_tessellation_shader
- * GL_ARB_transform_feedback3
- * GL_ARB_uniform_buffer_object
- *
- * It is unknown whether GL_EXT_shader_image_load_store or GL_NV_gpu_shader5
- * allow layout with the deprecated keywords.
- */
- const bool relaxed_layout_qualifier_checking =
- state->ARB_fragment_coord_conventions_enable;
-
- if (qual->has_layout() && uses_deprecated_qualifier) {
- if (relaxed_layout_qualifier_checking) {
- _mesa_glsl_warning(loc, state,
- "`layout' qualifier may not be used with "
- "`attribute' or `varying'");
- } else {
- _mesa_glsl_error(loc, state,
- "`layout' qualifier may not be used with "
- "`attribute' or `varying'");
- }
- }
-
- /* Layout qualifiers for gl_FragDepth, which are enabled by extension
- * AMD_conservative_depth.
- */
- int depth_layout_count = qual->flags.q.depth_any
- + qual->flags.q.depth_greater
- + qual->flags.q.depth_less
- + qual->flags.q.depth_unchanged;
- if (depth_layout_count > 0
- && !state->AMD_conservative_depth_enable
- && !state->ARB_conservative_depth_enable) {
- _mesa_glsl_error(loc, state,
- "extension GL_AMD_conservative_depth or "
- "GL_ARB_conservative_depth must be enabled "
- "to use depth layout qualifiers");
- } else if (depth_layout_count > 0
- && strcmp(var->name, "gl_FragDepth") != 0) {
- _mesa_glsl_error(loc, state,
- "depth layout qualifiers can be applied only to "
- "gl_FragDepth");
- } else if (depth_layout_count > 1
- && strcmp(var->name, "gl_FragDepth") == 0) {
- _mesa_glsl_error(loc, state,
- "at most one depth layout qualifier can be applied to "
- "gl_FragDepth");
- }
- if (qual->flags.q.depth_any)
- var->data.depth_layout = ir_depth_layout_any;
- else if (qual->flags.q.depth_greater)
- var->data.depth_layout = ir_depth_layout_greater;
- else if (qual->flags.q.depth_less)
- var->data.depth_layout = ir_depth_layout_less;
- else if (qual->flags.q.depth_unchanged)
- var->data.depth_layout = ir_depth_layout_unchanged;
- else
- var->data.depth_layout = ir_depth_layout_none;
-
- if (qual->flags.q.std140 ||
- qual->flags.q.std430 ||
- qual->flags.q.packed ||
- qual->flags.q.shared) {
- _mesa_glsl_error(loc, state,
- "uniform and shader storage block layout qualifiers "
- "std140, std430, packed, and shared can only be "
- "applied to uniform or shader storage blocks, not "
- "members");
- }
-
if (qual->flags.q.shared_storage && state->stage != MESA_SHADER_COMPUTE) {
_mesa_glsl_error(loc, state,
"the shared storage qualifiers can only be used with "
"compute shaders");
}
- if (qual->flags.q.row_major || qual->flags.q.column_major) {
- validate_matrix_layout_for_type(state, loc, var->type, var);
- }
-
apply_image_qualifier_to_variable(qual, var, state, loc);
-
- /* From section 4.4.1.3 of the GLSL 4.50 specification (Fragment Shader
- * Inputs):
- *
- * "Fragment shaders also allow the following layout qualifier on in only
- * (not with variable declarations)
- * layout-qualifier-id
- * early_fragment_tests
- * [...]"
- */
- if (qual->flags.q.early_fragment_tests) {
- _mesa_glsl_error(loc, state, "early_fragment_tests layout qualifier only "
- "valid in fragment shader input layout declaration.");
- }
}
/**
unsigned num_vertices = 0;
if (state->tcs_output_vertices_specified) {
- num_vertices = state->out_qualifier->vertices;
+ if (!state->out_qualifier->vertices->
+ process_qualifier_constant(state, "vertices",
+ &num_vertices, false)) {
+ return;
+ }
+
+ if (num_vertices > state->Const.MaxPatchVertices) {
+ _mesa_glsl_error(&loc, state, "vertices (%d) exceeds "
+ "GL_MAX_PATCH_VERTICES", num_vertices);
+ return;
+ }
}
if (!var->type->is_array() && !var->data.patch) {
*/
if (decl_type && decl_type->contains_atomic()) {
if (type->qualifier.flags.q.explicit_binding &&
- type->qualifier.flags.q.explicit_offset)
- state->atomic_counter_offsets[type->qualifier.binding] =
- type->qualifier.offset;
+ type->qualifier.flags.q.explicit_offset) {
+ unsigned qual_binding;
+ unsigned qual_offset;
+ if (process_qualifier_constant(state, &loc, "binding",
+ type->qualifier.binding,
+ &qual_binding)
+ && process_qualifier_constant(state, &loc, "offset",
+ type->qualifier.offset,
+ &qual_offset)) {
+ state->atomic_counter_offsets[qual_binding] = qual_offset;
+ }
+ }
}
if (this->declarations.is_empty()) {
apply_type_qualifier_to_variable(& this->type->qualifier, var, state,
& loc, false);
+ apply_layout_qualifier_to_variable(&this->type->qualifier, var, state,
+ &loc);
if (this->type->qualifier.flags.q.invariant) {
if (!is_varying_var(var, state->stage)) {
/* From page 56 (page 62 of the PDF) of the GLSL 1.30 spec:
* "No qualifier is allowed on the return type of a function."
*/
- if (this->return_type->has_qualifiers()) {
+ if (this->return_type->has_qualifiers(state)) {
YYLTYPE loc = this->get_location();
_mesa_glsl_error(& loc, state,
"function `%s' return type has qualifiers", name);
if (this->return_type->qualifier.flags.q.subroutine_def) {
int idx;
+ if (this->return_type->qualifier.flags.q.explicit_index) {
+ unsigned qual_index;
+ if (process_qualifier_constant(state, &loc, "index",
+ this->return_type->qualifier.index,
+ &qual_index)) {
+ if (!state->has_explicit_uniform_location()) {
+ _mesa_glsl_error(&loc, state, "subroutine index requires "
+ "GL_ARB_explicit_uniform_location or "
+ "GLSL 4.30");
+ } else if (qual_index >= MAX_SUBROUTINES) {
+ _mesa_glsl_error(&loc, state,
+ "invalid subroutine index (%d) index must "
+ "be a number between 0 and "
+ "GL_MAX_SUBROUTINES - 1 (%d)", qual_index,
+ MAX_SUBROUTINES - 1);
+ } else {
+ f->subroutine_index = qual_index;
+ }
+ }
+ }
+
f->num_subroutine_types = this->return_type->qualifier.subroutine_list->declarations.length();
f->subroutine_types = ralloc_array(state, const struct glsl_type *,
f->num_subroutine_types);
* stored in \c *fields_ret.
*/
unsigned
-ast_process_structure_or_interface_block(exec_list *instructions,
- struct _mesa_glsl_parse_state *state,
- exec_list *declarations,
- YYLTYPE &loc,
- glsl_struct_field **fields_ret,
- bool is_interface,
- enum glsl_matrix_layout matrix_layout,
- bool allow_reserved_names,
- ir_variable_mode var_mode,
- ast_type_qualifier *layout)
+ast_process_struct_or_iface_block_members(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state,
+ exec_list *declarations,
+ glsl_struct_field **fields_ret,
+ bool is_interface,
+ enum glsl_matrix_layout matrix_layout,
+ bool allow_reserved_names,
+ ir_variable_mode var_mode,
+ ast_type_qualifier *layout,
+ unsigned block_stream)
{
unsigned decl_count = 0;
- /* For blocks that accept memory qualifiers (i.e. shader storage), verify
- * that we don't have incompatible qualifiers
- */
- if (layout && layout->flags.q.read_only && layout->flags.q.write_only) {
- _mesa_glsl_error(&loc, state,
- "Interface block sets both readonly and writeonly");
- }
-
/* Make an initial pass over the list of fields to determine how
* many there are. Each element in this list is an ast_declarator_list.
* This means that we actually need to count the number of elements in the
unsigned i = 0;
foreach_list_typed (ast_declarator_list, decl_list, link, declarations) {
const char *type_name;
+ YYLTYPE loc = decl_list->get_location();
decl_list->type->specifier->hir(instructions, state);
const glsl_type *decl_type =
decl_list->type->glsl_type(& type_name, state);
- foreach_list_typed (ast_declaration, decl, link,
- &decl_list->declarations) {
- if (!allow_reserved_names)
- validate_identifier(decl->identifier, loc, state);
+ const struct ast_type_qualifier *const qual =
+ &decl_list->type->qualifier;
- /* From section 4.3.9 of the GLSL 4.40 spec:
- *
- * "[In interface blocks] opaque types are not allowed."
+ /* From section 4.3.9 of the GLSL 4.40 spec:
+ *
+ * "[In interface blocks] opaque types are not allowed."
+ *
+ * It should be impossible for decl_type to be NULL here. Cases that
+ * might naturally lead to decl_type being NULL, especially for the
+ * is_interface case, will have resulted in compilation having
+ * already halted due to a syntax error.
+ */
+ assert(decl_type);
+
+ if (is_interface && decl_type->contains_opaque()) {
+ _mesa_glsl_error(&loc, state,
+ "uniform/buffer in non-default interface block contains "
+ "opaque variable");
+ }
+
+ if (decl_type->contains_atomic()) {
+ /* From section 4.1.7.3 of the GLSL 4.40 spec:
*
- * It should be impossible for decl_type to be NULL here. Cases that
- * might naturally lead to decl_type being NULL, especially for the
- * is_interface case, will have resulted in compilation having
- * already halted due to a syntax error.
+ * "Members of structures cannot be declared as atomic counter
+ * types."
+ */
+ _mesa_glsl_error(&loc, state, "atomic counter in structure, "
+ "shader storage block or uniform block");
+ }
+
+ if (decl_type->contains_image()) {
+ /* FINISHME: Same problem as with atomic counters.
+ * FINISHME: Request clarification from Khronos and add
+ * FINISHME: spec quotation here.
*/
- assert(decl_type);
+ _mesa_glsl_error(&loc, state,
+ "image in structure, shader storage block or "
+ "uniform block");
+ }
- if (is_interface && decl_type->contains_opaque()) {
- YYLTYPE loc = decl_list->get_location();
- _mesa_glsl_error(&loc, state,
- "uniform/buffer in non-default interface block contains "
- "opaque variable");
- }
+ if (qual->flags.q.explicit_binding) {
+ _mesa_glsl_error(&loc, state,
+ "binding layout qualifier cannot be applied "
+ "to struct or interface block members");
+ }
- if (decl_type->contains_atomic()) {
- /* From section 4.1.7.3 of the GLSL 4.40 spec:
- *
- * "Members of structures cannot be declared as atomic counter
- * types."
- */
- YYLTYPE loc = decl_list->get_location();
- _mesa_glsl_error(&loc, state, "atomic counter in structure, "
- "shader storage block or uniform block");
- }
+ if (qual->flags.q.std140 ||
+ qual->flags.q.std430 ||
+ qual->flags.q.packed ||
+ qual->flags.q.shared) {
+ _mesa_glsl_error(&loc, state,
+ "uniform/shader storage block layout qualifiers "
+ "std140, std430, packed, and shared can only be "
+ "applied to uniform/shader storage blocks, not "
+ "members");
+ }
- if (decl_type->contains_image()) {
- /* FINISHME: Same problem as with atomic counters.
- * FINISHME: Request clarification from Khronos and add
- * FINISHME: spec quotation here.
- */
- YYLTYPE loc = decl_list->get_location();
- _mesa_glsl_error(&loc, state,
- "image in structure, shader storage block or "
- "uniform block");
+ if (qual->flags.q.constant) {
+ _mesa_glsl_error(&loc, state,
+ "const storage qualifier cannot be applied "
+ "to struct or interface block members");
+ }
+
+ /* From Section 4.4.2.3 (Geometry Outputs) of the GLSL 4.50 spec:
+ *
+ * "A block member may be declared with a stream identifier, but
+ * the specified stream must match the stream associated with the
+ * containing block."
+ */
+ if (qual->flags.q.explicit_stream) {
+ unsigned qual_stream;
+ if (process_qualifier_constant(state, &loc, "stream",
+ qual->stream, &qual_stream) &&
+ qual_stream != block_stream) {
+ _mesa_glsl_error(&loc, state, "stream layout qualifier on "
+ "interface block member does not match "
+ "the interface block (%d vs %d)", qual->stream,
+ block_stream);
}
+ }
- const struct ast_type_qualifier *const qual =
- & decl_list->type->qualifier;
+ if (qual->flags.q.uniform && qual->has_interpolation()) {
+ _mesa_glsl_error(&loc, state,
+ "interpolation qualifiers cannot be used "
+ "with uniform interface blocks");
+ }
- if (qual->flags.q.explicit_binding)
- validate_binding_qualifier(state, &loc, decl_type, qual);
+ if ((qual->flags.q.uniform || !is_interface) &&
+ qual->has_auxiliary_storage()) {
+ _mesa_glsl_error(&loc, state,
+ "auxiliary storage qualifiers cannot be used "
+ "in uniform blocks or structures.");
+ }
- if (qual->flags.q.std140 ||
- qual->flags.q.std430 ||
- qual->flags.q.packed ||
- qual->flags.q.shared) {
+ if (qual->flags.q.row_major || qual->flags.q.column_major) {
+ if (!qual->flags.q.uniform && !qual->flags.q.buffer) {
_mesa_glsl_error(&loc, state,
- "uniform/shader storage block layout qualifiers "
- "std140, std430, packed, and shared can only be "
- "applied to uniform/shader storage blocks, not "
- "members");
- }
+ "row_major and column_major can only be "
+ "applied to interface blocks");
+ } else
+ validate_matrix_layout_for_type(state, &loc, decl_type, NULL);
+ }
- if (qual->flags.q.constant) {
- YYLTYPE loc = decl_list->get_location();
- _mesa_glsl_error(&loc, state,
- "const storage qualifier cannot be applied "
- "to struct or interface block members");
- }
+ if (qual->flags.q.read_only && qual->flags.q.write_only) {
+ _mesa_glsl_error(&loc, state, "buffer variable can't be both "
+ "readonly and writeonly.");
+ }
+
+ foreach_list_typed (ast_declaration, decl, link,
+ &decl_list->declarations) {
+ YYLTYPE loc = decl->get_location();
+
+ if (!allow_reserved_names)
+ validate_identifier(decl->identifier, loc, state);
const struct glsl_type *field_type =
process_array_type(&loc, decl_type, decl->array_specifier, state);
fields[i].patch = qual->flags.q.patch ? 1 : 0;
fields[i].precision = qual->precision;
- /* From Section 4.4.2.3 (Geometry Outputs) of the GLSL 4.50 spec:
- *
- * "A block member may be declared with a stream identifier, but
- * the specified stream must match the stream associated with the
- * containing block."
- */
- if (qual->flags.q.explicit_stream &&
- qual->stream != layout->stream) {
- _mesa_glsl_error(&loc, state, "stream layout qualifier on "
- "interface block member `%s' does not match "
- "the interface block (%d vs %d)",
- fields[i].name, qual->stream, layout->stream);
- }
-
- if (qual->flags.q.row_major || qual->flags.q.column_major) {
- if (!qual->flags.q.uniform && !qual->flags.q.buffer) {
- _mesa_glsl_error(&loc, state,
- "row_major and column_major can only be "
- "applied to interface blocks");
- } else
- validate_matrix_layout_for_type(state, &loc, field_type, NULL);
- }
-
- if (qual->flags.q.uniform && qual->has_interpolation()) {
- _mesa_glsl_error(&loc, state,
- "interpolation qualifiers cannot be used "
- "with uniform interface blocks");
- }
-
- if ((qual->flags.q.uniform || !is_interface) &&
- qual->has_auxiliary_storage()) {
- _mesa_glsl_error(&loc, state,
- "auxiliary storage qualifiers cannot be used "
- "in uniform blocks or structures.");
- }
-
/* Propogate row- / column-major information down the fields of the
* structure or interface block. Structures need this data because
* the structure may contain a structure that contains ... a matrix
* be defined inside shader storage buffer objects
*/
if (layout && var_mode == ir_var_shader_storage) {
- if (qual->flags.q.read_only && qual->flags.q.write_only) {
- _mesa_glsl_error(&loc, state,
- "buffer variable `%s' can't be "
- "readonly and writeonly.", fields[i].name);
- }
-
/* For readonly and writeonly qualifiers the field definition,
* if set, overwrites the layout qualifier.
*/
- bool read_only = layout->flags.q.read_only;
- bool write_only = layout->flags.q.write_only;
-
if (qual->flags.q.read_only) {
- read_only = true;
- write_only = false;
+ fields[i].image_read_only = true;
+ fields[i].image_write_only = false;
} else if (qual->flags.q.write_only) {
- read_only = false;
- write_only = true;
+ fields[i].image_read_only = false;
+ fields[i].image_write_only = true;
+ } else {
+ fields[i].image_read_only = layout->flags.q.read_only;
+ fields[i].image_write_only = layout->flags.q.write_only;
}
- fields[i].image_read_only = read_only;
- fields[i].image_write_only = write_only;
-
/* For other qualifiers, we set the flag if either the layout
* qualifier or the field qualifier are set
*/
glsl_struct_field *fields;
unsigned decl_count =
- ast_process_structure_or_interface_block(instructions,
- state,
- &this->declarations,
- loc,
- &fields,
- false,
- GLSL_MATRIX_LAYOUT_INHERITED,
- false /* allow_reserved_names */,
- ir_var_auto,
- NULL);
+ ast_process_struct_or_iface_block_members(instructions,
+ state,
+ &this->declarations,
+ &fields,
+ false,
+ GLSL_MATRIX_LAYOUT_INHERITED,
+ false /* allow_reserved_names */,
+ ir_var_auto,
+ NULL,
+ 0 /* for interface only */);
validate_identifier(this->name, loc, state);
*/
state->struct_specifier_depth++;
+ /* For blocks that accept memory qualifiers (i.e. shader storage), verify
+ * that we don't have incompatible qualifiers
+ */
+ if (this->layout.flags.q.read_only && this->layout.flags.q.write_only) {
+ _mesa_glsl_error(&loc, state,
+ "Interface block sets both readonly and writeonly");
+ }
+
+ unsigned qual_stream;
+ if (!process_qualifier_constant(state, &loc, "stream", this->layout.stream,
+ &qual_stream) ||
+ !validate_stream_qualifier(&loc, state, qual_stream)) {
+ /* If the stream qualifier is invalid it doesn't make sense to continue
+ * on and try to compare stream layouts on member variables against it
+ * so just return early.
+ */
+ return NULL;
+ }
+
unsigned int num_variables =
- ast_process_structure_or_interface_block(&declared_variables,
- state,
- &this->declarations,
- loc,
- &fields,
- true,
- matrix_layout,
- redeclaring_per_vertex,
- var_mode,
- &this->layout);
+ ast_process_struct_or_iface_block_members(&declared_variables,
+ state,
+ &this->declarations,
+ &fields,
+ true,
+ matrix_layout,
+ redeclaring_per_vertex,
+ var_mode,
+ &this->layout,
+ qual_stream);
state->struct_specifier_depth--;
earlier_per_vertex->fields.structure[j].sample;
fields[i].patch =
earlier_per_vertex->fields.structure[j].patch;
+ fields[i].precision =
+ earlier_per_vertex->fields.structure[j].precision;
}
}
num_variables,
packing,
this->block_name);
- if (this->layout.flags.q.explicit_binding)
- validate_binding_qualifier(state, &loc, block_type, &this->layout);
if (!state->symbols->add_interface(block_type->name, block_type, var_mode)) {
YYLTYPE loc = this->get_location();
"not allowed");
}
- if (this->layout.flags.q.explicit_binding)
- validate_binding_qualifier(state, &loc, block_array_type,
- &this->layout);
-
var = new(state) ir_variable(block_array_type,
this->instance_name,
var_mode);
earlier->reinit_interface_type(block_type);
delete var;
} else {
- /* Propagate the "binding" keyword into this UBO's fields;
- * the UBO declaration itself doesn't get an ir_variable unless it
- * has an instance name. This is ugly.
- */
- var->data.explicit_binding = this->layout.flags.q.explicit_binding;
- var->data.binding = this->layout.binding;
+ if (this->layout.flags.q.explicit_binding) {
+ apply_explicit_binding(state, &loc, var, var->type,
+ &this->layout);
+ }
- var->data.stream = this->layout.stream;
+ var->data.stream = qual_stream;
state->symbols->add_variable(var);
instructions->push_tail(var);
var->data.centroid = fields[i].centroid;
var->data.sample = fields[i].sample;
var->data.patch = fields[i].patch;
- var->data.stream = this->layout.stream;
+ var->data.stream = qual_stream;
var->init_interface_type(block_type);
if (var_mode == ir_var_shader_in || var_mode == ir_var_uniform)
* The UBO declaration itself doesn't get an ir_variable unless it
* has an instance name. This is ugly.
*/
- var->data.explicit_binding = this->layout.flags.q.explicit_binding;
- var->data.binding = this->layout.binding;
+ if (this->layout.flags.q.explicit_binding) {
+ apply_explicit_binding(state, &loc, var,
+ var->get_interface_type(), &this->layout);
+ }
if (var->type->is_unsized_array()) {
if (var->is_in_shader_storage_block()) {
{
YYLTYPE loc = this->get_location();
- /* If any tessellation control output layout declaration preceded this
- * one, make sure it was consistent with this one.
- */
- if (state->tcs_output_vertices_specified &&
- state->out_qualifier->vertices != this->vertices) {
- _mesa_glsl_error(&loc, state,
- "tessellation control shader output layout does not "
- "match previous declaration");
- return NULL;
+ unsigned num_vertices;
+ if (!state->out_qualifier->vertices->
+ process_qualifier_constant(state, "vertices", &num_vertices,
+ false)) {
+ /* return here to stop cascading incorrect error messages */
+ return NULL;
}
/* If any shader outputs occurred before this declaration and specified an
* array size, make sure the size they specified is consistent with the
* primitive type.
*/
- unsigned num_vertices = this->vertices;
if (state->tcs_output_size != 0 && state->tcs_output_size != num_vertices) {
_mesa_glsl_error(&loc, state,
"this tessellation control shader output layout "
{
YYLTYPE loc = this->get_location();
- /* If any compute input layout declaration preceded this one, make sure it
- * was consistent with this one.
- */
- if (state->cs_input_local_size_specified) {
- for (int i = 0; i < 3; i++) {
- if (state->cs_input_local_size[i] != this->local_size[i]) {
- _mesa_glsl_error(&loc, state,
- "compute shader input layout does not match"
- " previous declaration");
- return NULL;
- }
- }
- }
-
/* From the ARB_compute_shader specification:
*
* If the local size of the shader in any dimension is greater
* report it at compile time as well.
*/
GLuint64 total_invocations = 1;
+ unsigned qual_local_size[3];
for (int i = 0; i < 3; i++) {
- if (this->local_size[i] > state->ctx->Const.MaxComputeWorkGroupSize[i]) {
+
+ char *local_size_str = ralloc_asprintf(NULL, "invalid local_size_%c",
+ 'x' + i);
+ /* Infer a local_size of 1 for unspecified dimensions */
+ if (this->local_size[i] == NULL) {
+ qual_local_size[i] = 1;
+ } else if (!this->local_size[i]->
+ process_qualifier_constant(state, local_size_str,
+ &qual_local_size[i], false)) {
+ ralloc_free(local_size_str);
+ return NULL;
+ }
+ ralloc_free(local_size_str);
+
+ if (qual_local_size[i] > state->ctx->Const.MaxComputeWorkGroupSize[i]) {
_mesa_glsl_error(&loc, state,
"local_size_%c exceeds MAX_COMPUTE_WORK_GROUP_SIZE"
" (%d)", 'x' + i,
state->ctx->Const.MaxComputeWorkGroupSize[i]);
break;
}
- total_invocations *= this->local_size[i];
+ total_invocations *= qual_local_size[i];
if (total_invocations >
state->ctx->Const.MaxComputeWorkGroupInvocations) {
_mesa_glsl_error(&loc, state,
}
}
+ /* If any compute input layout declaration preceded this one, make sure it
+ * was consistent with this one.
+ */
+ if (state->cs_input_local_size_specified) {
+ for (int i = 0; i < 3; i++) {
+ if (state->cs_input_local_size[i] != qual_local_size[i]) {
+ _mesa_glsl_error(&loc, state,
+ "compute shader input layout does not match"
+ " previous declaration");
+ return NULL;
+ }
+ }
+ }
+
state->cs_input_local_size_specified = true;
for (int i = 0; i < 3; i++)
- state->cs_input_local_size[i] = this->local_size[i];
+ state->cs_input_local_size[i] = qual_local_size[i];
/* We may now declare the built-in constant gl_WorkGroupSize (see
* builtin_variable_generator::generate_constants() for why we didn't
ir_constant_data data;
memset(&data, 0, sizeof(data));
for (int i = 0; i < 3; i++)
- data.u[i] = this->local_size[i];
+ data.u[i] = qual_local_size[i];
var->constant_value = new(var) ir_constant(glsl_type::uvec3_type, &data);
var->constant_initializer =
new(var) ir_constant(glsl_type::uvec3_type, &data);
{
bool gl_FragColor_assigned = false;
bool gl_FragData_assigned = false;
+ bool gl_FragSecondaryColor_assigned = false;
+ bool gl_FragSecondaryData_assigned = false;
bool user_defined_fs_output_assigned = false;
ir_variable *user_defined_fs_output = NULL;
gl_FragColor_assigned = true;
else if (strcmp(var->name, "gl_FragData") == 0)
gl_FragData_assigned = true;
+ else if (strcmp(var->name, "gl_SecondaryFragColorEXT") == 0)
+ gl_FragSecondaryColor_assigned = true;
+ else if (strcmp(var->name, "gl_SecondaryFragDataEXT") == 0)
+ gl_FragSecondaryData_assigned = true;
else if (!is_gl_identifier(var->name)) {
if (state->stage == MESA_SHADER_FRAGMENT &&
var->data.mode == ir_var_shader_out) {
_mesa_glsl_error(&loc, state, "fragment shader writes to both "
"`gl_FragColor' and `%s'",
user_defined_fs_output->name);
+ } else if (gl_FragSecondaryColor_assigned && gl_FragSecondaryData_assigned) {
+ _mesa_glsl_error(&loc, state, "fragment shader writes to both "
+ "`gl_FragSecondaryColorEXT' and"
+ " `gl_FragSecondaryDataEXT'");
+ } else if (gl_FragColor_assigned && gl_FragSecondaryData_assigned) {
+ _mesa_glsl_error(&loc, state, "fragment shader writes to both "
+ "`gl_FragColor' and"
+ " `gl_FragSecondaryDataEXT'");
+ } else if (gl_FragData_assigned && gl_FragSecondaryColor_assigned) {
+ _mesa_glsl_error(&loc, state, "fragment shader writes to both "
+ "`gl_FragData' and"
+ " `gl_FragSecondaryColorEXT'");
} else if (gl_FragData_assigned && user_defined_fs_output_assigned) {
_mesa_glsl_error(&loc, state, "fragment shader writes to both "
"`gl_FragData' and `%s'",
user_defined_fs_output->name);
}
+
+ if ((gl_FragSecondaryColor_assigned || gl_FragSecondaryData_assigned) &&
+ !state->EXT_blend_func_extended_enable) {
+ _mesa_glsl_error(&loc, state,
+ "Dual source blending requires EXT_blend_func_extended");
+ }
}
projects / mesa.git / blobdiff