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authormarha <marha@users.sourceforge.net>2012-12-10 08:33:13 +0100
committermarha <marha@users.sourceforge.net>2012-12-10 08:33:13 +0100
commit0328076efb5ff6e62152c09e38d0d11f7931d07b (patch)
treece71cf0fe95186671dc75862c2ced47f4735214f /mesalib/src/glsl/ast_to_hir.cpp
parente82692e521240c5f8592f9ce56c9d5b3d68870ec (diff)
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Diffstat (limited to 'mesalib/src/glsl/ast_to_hir.cpp')
-rw-r--r--mesalib/src/glsl/ast_to_hir.cpp153
1 files changed, 84 insertions, 69 deletions
diff --git a/mesalib/src/glsl/ast_to_hir.cpp b/mesalib/src/glsl/ast_to_hir.cpp
index d450aa1e4..94b63f682 100644
--- a/mesalib/src/glsl/ast_to_hir.cpp
+++ b/mesalib/src/glsl/ast_to_hir.cpp
@@ -66,7 +66,7 @@ _mesa_ast_to_hir(exec_list *instructions, struct _mesa_glsl_parse_state *state)
{
_mesa_glsl_initialize_variables(instructions, state);
- state->symbols->language_version = state->language_version;
+ state->symbols->separate_function_namespace = state->language_version == 110;
state->current_function = NULL;
@@ -121,7 +121,7 @@ apply_implicit_conversion(const glsl_type *to, ir_rvalue * &from,
/* This conversion was added in GLSL 1.20. If the compilation mode is
* GLSL 1.10, the conversion is skipped.
*/
- if (state->language_version < 120)
+ if (!state->is_version(120, 0))
return false;
/* From page 27 (page 33 of the PDF) of the GLSL 1.50 spec:
@@ -390,8 +390,7 @@ bit_logic_result_type(const struct glsl_type *type_a,
ast_operators op,
struct _mesa_glsl_parse_state *state, YYLTYPE *loc)
{
- if (state->language_version < 130) {
- _mesa_glsl_error(loc, state, "bit operations require GLSL 1.30");
+ if (!state->check_bitwise_operations_allowed(loc)) {
return glsl_type::error_type;
}
@@ -446,10 +445,7 @@ modulus_result_type(const struct glsl_type *type_a,
const struct glsl_type *type_b,
struct _mesa_glsl_parse_state *state, YYLTYPE *loc)
{
- if (state->language_version < 130) {
- _mesa_glsl_error(loc, state,
- "operator '%%' is reserved in %s",
- state->version_string);
+ if (!state->check_version(130, 300, loc, "operator '%%' is reserved")) {
return glsl_type::error_type;
}
@@ -553,8 +549,7 @@ shift_result_type(const struct glsl_type *type_a,
ast_operators op,
struct _mesa_glsl_parse_state *state, YYLTYPE *loc)
{
- if (state->language_version < 130) {
- _mesa_glsl_error(loc, state, "bit operations require GLSL 1.30");
+ if (!state->check_bitwise_operations_allowed(loc)) {
return glsl_type::error_type;
}
@@ -694,15 +689,17 @@ do_assignment(exec_list *instructions, struct _mesa_glsl_parse_state *state,
lhs->variable_referenced()->name);
error_emitted = true;
- } else if (state->language_version <= 110 && lhs->type->is_array()) {
+ } else if (lhs->type->is_array() &&
+ !state->check_version(120, 300, &lhs_loc,
+ "whole array assignment forbidden")) {
/* From page 32 (page 38 of the PDF) of the GLSL 1.10 spec:
*
* "Other binary or unary expressions, non-dereferenced
* arrays, function names, swizzles with repeated fields,
* and constants cannot be l-values."
+ *
+ * The restriction on arrays is lifted in GLSL 1.20 and GLSL ES 3.00.
*/
- _mesa_glsl_error(&lhs_loc, state, "whole array assignment is not "
- "allowed in GLSL 1.10 or GLSL ES 1.00.");
error_emitted = true;
} else if (!lhs->is_lvalue()) {
_mesa_glsl_error(& lhs_loc, state, "non-lvalue in assignment");
@@ -1099,9 +1096,7 @@ ast_expression::hir(exec_list *instructions,
case ast_lshift:
case ast_rshift:
- if (state->language_version < 130) {
- _mesa_glsl_error(&loc, state, "operator %s requires GLSL 1.30",
- operator_string(this->oper));
+ if (!state->check_bitwise_operations_allowed(&loc)) {
error_emitted = true;
}
@@ -1155,10 +1150,9 @@ ast_expression::hir(exec_list *instructions,
_mesa_glsl_error(& loc, state, "operands of `%s' must have the same "
"type", (this->oper == ast_equal) ? "==" : "!=");
error_emitted = true;
- } else if ((state->language_version <= 110)
- && (op[0]->type->is_array() || op[1]->type->is_array())) {
- _mesa_glsl_error(& loc, state, "array comparisons forbidden in "
- "GLSL 1.10");
+ } else if ((op[0]->type->is_array() || op[1]->type->is_array()) &&
+ !state->check_version(120, 300, &loc,
+ "array comparisons forbidden")) {
error_emitted = true;
}
@@ -1185,8 +1179,7 @@ ast_expression::hir(exec_list *instructions,
case ast_bit_not:
op[0] = this->subexpressions[0]->hir(instructions, state);
- if (state->language_version < 130) {
- _mesa_glsl_error(&loc, state, "bit-wise operations require GLSL 1.30");
+ if (!state->check_bitwise_operations_allowed(&loc)) {
error_emitted = true;
}
@@ -1424,9 +1417,10 @@ ast_expression::hir(exec_list *instructions,
* "The second and third expressions must be the same type, but can
* be of any type other than an array."
*/
- if ((state->language_version <= 110) && type->is_array()) {
- _mesa_glsl_error(& loc, state, "Second and third operands of ?: "
- "operator must not be arrays.");
+ if (type->is_array() &&
+ !state->check_version(120, 300, &loc,
+ "Second and third operands of ?: operator "
+ "cannot be arrays")) {
error_emitted = true;
}
@@ -1660,15 +1654,18 @@ ast_expression::hir(exec_list *instructions,
array->type->element_type()->is_sampler() &&
const_index == NULL) {
- if (state->language_version == 100) {
- _mesa_glsl_warning(&loc, state,
- "sampler arrays indexed with non-constant "
- "expressions is optional in GLSL ES 1.00");
- } else if (state->language_version < 130) {
- _mesa_glsl_warning(&loc, state,
- "sampler arrays indexed with non-constant "
- "expressions is forbidden in GLSL 1.30 and "
- "later");
+ if (!state->is_version(130, 100)) {
+ if (state->es_shader) {
+ _mesa_glsl_warning(&loc, state,
+ "sampler arrays indexed with non-constant "
+ "expressions is optional in %s",
+ state->get_version_string());
+ } else {
+ _mesa_glsl_warning(&loc, state,
+ "sampler arrays indexed with non-constant "
+ "expressions will be forbidden in GLSL 1.30 and "
+ "later");
+ }
} else {
_mesa_glsl_error(&loc, state,
"sampler arrays indexed with non-constant "
@@ -2288,7 +2285,7 @@ get_variable_being_redeclared(ir_variable *var, ast_declaration *decl,
* * gl_Color
* * gl_SecondaryColor
*/
- } else if (state->language_version >= 130
+ } else if (state->is_version(130, 0)
&& (strcmp(var->name, "gl_FrontColor") == 0
|| strcmp(var->name, "gl_BackColor") == 0
|| strcmp(var->name, "gl_FrontSecondaryColor") == 0
@@ -2355,10 +2352,9 @@ process_initializer(ir_variable *var, ast_declaration *decl,
* directly by an application via API commands, or indirectly by
* OpenGL."
*/
- if ((state->language_version <= 110)
- && (var->mode == ir_var_uniform)) {
- _mesa_glsl_error(& initializer_loc, state,
- "cannot initialize uniforms in GLSL 1.10");
+ if (var->mode == ir_var_uniform) {
+ state->check_version(120, 0, &initializer_loc,
+ "cannot initialize uniforms");
}
if (var->type->is_sampler()) {
@@ -2608,23 +2604,23 @@ ast_declarator_list::hir(exec_list *instructions,
*
* Local variables can only use the qualifier const."
*
- * This is relaxed in GLSL 1.30. It is also relaxed by any extension
- * that adds the 'layout' keyword.
+ * This is relaxed in GLSL 1.30 and GLSL ES 3.00. It is also relaxed by
+ * any extension that adds the 'layout' keyword.
*/
- if ((state->language_version < 130)
+ if (!state->is_version(130, 300)
&& !state->ARB_explicit_attrib_location_enable
&& !state->ARB_fragment_coord_conventions_enable) {
if (this->type->qualifier.flags.q.out) {
_mesa_glsl_error(& loc, state,
"`out' qualifier in declaration of `%s' "
"only valid for function parameters in %s.",
- decl->identifier, state->version_string);
+ decl->identifier, state->get_version_string());
}
if (this->type->qualifier.flags.q.in) {
_mesa_glsl_error(& loc, state,
"`in' qualifier in declaration of `%s' "
"only valid for function parameters in %s.",
- decl->identifier, state->version_string);
+ decl->identifier, state->get_version_string());
}
/* FINISHME: Test for other invalid qualifiers. */
}
@@ -2703,6 +2699,13 @@ ast_declarator_list::hir(exec_list *instructions,
* "The attribute qualifier can be used only with float,
* floating-point vectors, and matrices. Attribute variables
* cannot be declared as arrays or structures."
+ *
+ * From page 33 (page 39 of the PDF) of the GLSL ES 3.00 spec:
+ *
+ * "Vertex shader inputs can only be float, floating-point
+ * vectors, matrices, signed and unsigned integers and integer
+ * vectors. Vertex shader inputs cannot be arrays or
+ * structures."
*/
const glsl_type *check_type = var->type->is_array()
? var->type->fields.array : var->type;
@@ -2712,7 +2715,7 @@ ast_declarator_list::hir(exec_list *instructions,
break;
case GLSL_TYPE_UINT:
case GLSL_TYPE_INT:
- if (state->language_version > 120)
+ if (state->is_version(120, 300))
break;
/* FALLTHROUGH */
default:
@@ -2724,11 +2727,10 @@ ast_declarator_list::hir(exec_list *instructions,
error_emitted = true;
}
- if (!error_emitted && (state->language_version <= 130)
- && var->type->is_array()) {
- _mesa_glsl_error(& loc, state,
- "vertex shader input / attribute cannot have "
- "array type");
+ if (!error_emitted && var->type->is_array() &&
+ !state->check_version(140, 0, &loc,
+ "vertex shader input / attribute "
+ "cannot have array type")) {
error_emitted = true;
}
}
@@ -2740,8 +2742,16 @@ ast_declarator_list::hir(exec_list *instructions,
* "If a vertex output is a signed or unsigned integer or integer
* vector, then it must be qualified with the interpolation qualifier
* flat."
+ *
+ * From section 4.3.4 of the GLSL 3.00 ES spec:
+ * "Fragment shader inputs that are signed or unsigned integers or
+ * integer vectors must be qualified with the interpolation qualifier
+ * flat."
+ *
+ * Since vertex outputs and fragment inputs must have matching
+ * qualifiers, these two requirements are equivalent.
*/
- if (state->language_version >= 130
+ if (state->is_version(130, 300)
&& state->target == vertex_shader
&& state->current_function == NULL
&& var->type->is_integer()
@@ -2760,8 +2770,10 @@ ast_declarator_list::hir(exec_list *instructions,
* "interpolation qualifiers may only precede the qualifiers in,
* centroid in, out, or centroid out in a declaration. They do not apply
* to the deprecated storage qualifiers varying or centroid varying."
+ *
+ * These deprecated storage qualifiers do not exist in GLSL ES 3.00.
*/
- if (state->language_version >= 130
+ if (state->is_version(130, 0)
&& this->type->qualifier.has_interpolation()
&& this->type->qualifier.flags.q.varying) {
@@ -2786,8 +2798,14 @@ ast_declarator_list::hir(exec_list *instructions,
* "Outputs from a vertex shader (out) and inputs to a fragment
* shader (in) can be further qualified with one or more of these
* interpolation qualifiers"
+ *
+ * From page 31 (page 37 of the PDF) of the GLSL ES 3.00 spec:
+ * "These interpolation qualifiers may only precede the qualifiers
+ * in, centroid in, out, or centroid out in a declaration. They do
+ * not apply to inputs into a vertex shader or outputs from a
+ * fragment shader."
*/
- if (state->language_version >= 130
+ if (state->is_version(130, 300)
&& this->type->qualifier.has_interpolation()) {
const char *i = this->type->qualifier.interpolation_string();
@@ -2816,8 +2834,12 @@ ast_declarator_list::hir(exec_list *instructions,
/* From section 4.3.4 of the GLSL 1.30 spec:
* "It is an error to use centroid in in a vertex shader."
+ *
+ * From section 4.3.4 of the GLSL ES 3.00 spec:
+ * "It is an error to use centroid in or interpolation qualifiers in
+ * a vertex shader input."
*/
- if (state->language_version >= 130
+ if (state->is_version(130, 300)
&& this->type->qualifier.flags.q.centroid
&& this->type->qualifier.flags.q.in
&& state->target == vertex_shader) {
@@ -2829,13 +2851,8 @@ ast_declarator_list::hir(exec_list *instructions,
/* Precision qualifiers exists only in GLSL versions 1.00 and >= 1.30.
*/
- if (this->type->specifier->precision != ast_precision_none
- && state->language_version != 100
- && state->language_version < 130) {
-
- _mesa_glsl_error(&loc, state,
- "precision qualifiers are supported only in GLSL ES "
- "1.00, and GLSL 1.30 and later");
+ if (this->type->specifier->precision != ast_precision_none) {
+ state->check_precision_qualifiers_allowed(&loc);
}
@@ -3077,8 +3094,9 @@ ast_parameter_declarator::hir(exec_list *instructions,
* allowed. This restriction is removed in GLSL 1.20, and in GLSL ES.
*/
if ((var->mode == ir_var_inout || var->mode == ir_var_out)
- && type->is_array() && state->language_version == 110) {
- _mesa_glsl_error(&loc, state, "Arrays cannot be out or inout parameters in GLSL 1.10");
+ && type->is_array()
+ && !state->check_version(120, 100, &loc,
+ "Arrays cannot be out or inout parameters")) {
type = glsl_type::error_type;
}
@@ -3161,7 +3179,8 @@ ast_function::hir(exec_list *instructions,
*
* Note that this language does not appear in GLSL 1.10.
*/
- if ((state->current_function != NULL) && (state->language_version != 110)) {
+ if ((state->current_function != NULL) &&
+ state->is_version(120, 100)) {
YYLTYPE loc = this->get_location();
_mesa_glsl_error(&loc, state,
"declaration of function `%s' not allowed within "
@@ -3872,11 +3891,7 @@ ast_type_specifier::hir(exec_list *instructions,
YYLTYPE loc = this->get_location();
if (this->precision != ast_precision_none
- && state->language_version != 100
- && state->language_version < 130) {
- _mesa_glsl_error(&loc, state,
- "precision qualifiers exist only in "
- "GLSL ES 1.00, and GLSL 1.30 and later");
+ && !state->check_precision_qualifiers_allowed(&loc)) {
return NULL;
}
if (this->precision != ast_precision_none