#include <stdlib.h>
#include "glsl_symbol_table.h"
-enum _mesa_glsl_parser_targets {
- vertex_shader,
- geometry_shader,
- fragment_shader
+struct gl_context;
+
+struct glsl_switch_state {
+ /** Temporary variables needed for switch statement. */
+ ir_variable *test_var;
+ ir_variable *is_fallthru_var;
+ ir_variable *is_break_var;
+ class ast_switch_statement *switch_nesting_ast;
+
+ /** Table of constant values already used in case labels */
+ struct hash_table *labels_ht;
+ class ast_case_label *previous_default;
+
+ bool is_switch_innermost; // if switch stmt is closest to break, ...
};
-struct gl_context;
+const char *
+glsl_compute_version_string(void *mem_ctx, bool is_es, unsigned version);
+
+typedef struct YYLTYPE {
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+ unsigned source;
+} YYLTYPE;
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+
+extern void _mesa_glsl_error(YYLTYPE *locp, _mesa_glsl_parse_state *state,
+ const char *fmt, ...);
+
struct _mesa_glsl_parse_state {
- _mesa_glsl_parse_state(struct gl_context *ctx, GLenum target,
+ _mesa_glsl_parse_state(struct gl_context *_ctx, gl_shader_stage stage,
void *mem_ctx);
- /* Callers of this ralloc-based new need not call delete. It's
- * easier to just ralloc_free 'ctx' (or any of its ancestors). */
- static void* operator new(size_t size, void *ctx)
+ DECLARE_RALLOC_CXX_OPERATORS(_mesa_glsl_parse_state);
+
+ /**
+ * Generate a string representing the GLSL version currently being compiled
+ * (useful for error messages).
+ */
+ const char *get_version_string()
{
- void *mem = rzalloc_size(ctx, size);
- assert(mem != NULL);
+ return glsl_compute_version_string(this, this->es_shader,
+ this->language_version);
+ }
- return mem;
+ /**
+ * Determine whether the current GLSL version is sufficiently high to
+ * support a certain feature.
+ *
+ * \param required_glsl_version is the desktop GLSL version that is
+ * required to support the feature, or 0 if no version of desktop GLSL
+ * supports the feature.
+ *
+ * \param required_glsl_es_version is the GLSL ES version that is required
+ * to support the feature, or 0 if no version of GLSL ES suports the
+ * feature.
+ */
+ bool is_version(unsigned required_glsl_version,
+ unsigned required_glsl_es_version) const
+ {
+ unsigned required_version = this->es_shader ?
+ required_glsl_es_version : required_glsl_version;
+ return required_version != 0
+ && this->language_version >= required_version;
+ }
+
+ bool check_version(unsigned required_glsl_version,
+ unsigned required_glsl_es_version,
+ YYLTYPE *locp, const char *fmt, ...) PRINTFLIKE(5, 6);
+
+ bool check_precision_qualifiers_allowed(YYLTYPE *locp)
+ {
+ return check_version(130, 100, locp,
+ "precision qualifiers are forbidden");
}
- /* If the user *does* call delete, that's OK, we will just
- * ralloc_free in that case. */
- static void operator delete(void *mem)
+ bool check_bitwise_operations_allowed(YYLTYPE *locp)
{
- ralloc_free(mem);
+ return check_version(130, 300, locp, "bit-wise operations are forbidden");
}
+ bool check_explicit_attrib_location_allowed(YYLTYPE *locp,
+ const ir_variable *var)
+ {
+ if (!this->has_explicit_attrib_location()) {
+ const char *const requirement = this->es_shader
+ ? "GLSL ES 300"
+ : "GL_ARB_explicit_attrib_location extension or GLSL 330";
+
+ _mesa_glsl_error(locp, this, "%s explicit location requires %s",
+ mode_string(var), requirement);
+ return false;
+ }
+
+ return true;
+ }
+
+ bool check_separate_shader_objects_allowed(YYLTYPE *locp,
+ const ir_variable *var)
+ {
+ if (!this->has_separate_shader_objects()) {
+ const char *const requirement = this->es_shader
+ ? "GL_EXT_separate_shader_objects extension"
+ : "GL_ARB_separate_shader_objects extension or GLSL 420";
+
+ _mesa_glsl_error(locp, this, "%s explicit location requires %s",
+ mode_string(var), requirement);
+ return false;
+ }
+
+ return true;
+ }
+
+ bool has_explicit_attrib_location() const
+ {
+ return ARB_explicit_attrib_location_enable || is_version(330, 300);
+ }
+
+ bool has_uniform_buffer_objects() const
+ {
+ return ARB_uniform_buffer_object_enable || is_version(140, 300);
+ }
+
+ bool has_separate_shader_objects() const
+ {
+ return ARB_separate_shader_objects_enable || is_version(410, 0)
+ || EXT_separate_shader_objects_enable;
+ }
+
+ void process_version_directive(YYLTYPE *locp, int version,
+ const char *ident);
+
+ struct gl_context *const ctx;
void *scanner;
exec_list translation_unit;
glsl_symbol_table *symbols;
+ unsigned num_supported_versions;
+ struct {
+ unsigned ver;
+ bool es;
+ } supported_versions[12];
+
bool es_shader;
unsigned language_version;
- const char *version_string;
- enum _mesa_glsl_parser_targets target;
+ gl_shader_stage stage;
+
+ /**
+ * Number of nested struct_specifier levels
+ *
+ * Outside a struct_specifer, this is zero.
+ */
+ unsigned struct_specifier_depth;
+
+ /**
+ * Default uniform layout qualifiers tracked during parsing.
+ * Currently affects uniform blocks and uniform buffer variables in
+ * those blocks.
+ */
+ struct ast_type_qualifier *default_uniform_qualifier;
+
+ /**
+ * Variables to track different cases if a fragment shader redeclares
+ * built-in variable gl_FragCoord.
+ *
+ * Note: These values are computed at ast_to_hir time rather than at parse
+ * time.
+ */
+ bool fs_redeclares_gl_fragcoord;
+ bool fs_origin_upper_left;
+ bool fs_pixel_center_integer;
+ bool fs_redeclares_gl_fragcoord_with_no_layout_qualifiers;
+
+ /**
+ * True if a geometry shader input primitive type was specified using a
+ * layout directive.
+ *
+ * Note: this value is computed at ast_to_hir time rather than at parse
+ * time.
+ */
+ bool gs_input_prim_type_specified;
+
+ /** Input layout qualifiers from GLSL 1.50. (geometry shader controls)*/
+ struct ast_type_qualifier *in_qualifier;
+
+ /**
+ * True if a compute shader input local size was specified using a layout
+ * directive.
+ *
+ * Note: this value is computed at ast_to_hir time rather than at parse
+ * time.
+ */
+ bool cs_input_local_size_specified;
+
+ /**
+ * If cs_input_local_size_specified is true, the local size that was
+ * specified. Otherwise ignored.
+ */
+ unsigned cs_input_local_size[3];
+
+ /** Output layout qualifiers from GLSL 1.50. (geometry shader controls)*/
+ struct ast_type_qualifier *out_qualifier;
/**
* Printable list of GLSL versions supported by the current context
unsigned MaxTextureCoords;
unsigned MaxVertexAttribs;
unsigned MaxVertexUniformComponents;
- unsigned MaxVaryingFloats;
unsigned MaxVertexTextureImageUnits;
unsigned MaxCombinedTextureImageUnits;
unsigned MaxTextureImageUnits;
/* ARB_draw_buffers */
unsigned MaxDrawBuffers;
- /**
- * Set of GLSL versions supported by the current context
- *
- * Knowing that version X is supported doesn't mean that versions before
- * X are also supported. Version 1.00 is only supported in an ES2
- * context or when GL_ARB_ES2_compatibility is supported. In an OpenGL
- * 3.0 "forward compatible" context, GLSL 1.10 and 1.20 are \b not
- * supported.
- */
- /*@{*/
- unsigned GLSL_100ES:1;
- unsigned GLSL_110:1;
- unsigned GLSL_120:1;
- unsigned GLSL_130:1;
- /*@}*/
+ /* 3.00 ES */
+ int MinProgramTexelOffset;
+ int MaxProgramTexelOffset;
+
+ /* 1.50 */
+ unsigned MaxVertexOutputComponents;
+ unsigned MaxGeometryInputComponents;
+ unsigned MaxGeometryOutputComponents;
+ unsigned MaxFragmentInputComponents;
+ unsigned MaxGeometryTextureImageUnits;
+ unsigned MaxGeometryOutputVertices;
+ unsigned MaxGeometryTotalOutputComponents;
+ unsigned MaxGeometryUniformComponents;
+
+ /* ARB_shader_atomic_counters */
+ unsigned MaxVertexAtomicCounters;
+ unsigned MaxGeometryAtomicCounters;
+ unsigned MaxFragmentAtomicCounters;
+ unsigned MaxCombinedAtomicCounters;
+ unsigned MaxAtomicBufferBindings;
+
+ /* ARB_compute_shader */
+ unsigned MaxComputeWorkGroupCount[3];
+ unsigned MaxComputeWorkGroupSize[3];
+
+ /* ARB_shader_image_load_store */
+ unsigned MaxImageUnits;
+ unsigned MaxCombinedImageUnitsAndFragmentOutputs;
+ unsigned MaxImageSamples;
+ unsigned MaxVertexImageUniforms;
+ unsigned MaxGeometryImageUniforms;
+ unsigned MaxFragmentImageUniforms;
+ unsigned MaxCombinedImageUniforms;
} Const;
/**
*/
class ir_function_signature *current_function;
+ /**
+ * During AST to IR conversion, pointer to the toplevel IR
+ * instruction list being generated.
+ */
+ exec_list *toplevel_ir;
+
/** Have we found a return statement in this function? */
bool found_return;
bool all_invariant;
/** Loop or switch statement containing the current instructions. */
- class ir_instruction *loop_or_switch_nesting;
- class ast_iteration_statement *loop_or_switch_nesting_ast;
+ class ast_iteration_statement *loop_nesting_ast;
+
+ struct glsl_switch_state switch_state;
/** List of structures defined in user code. */
const glsl_type **user_structures;
* \name Enable bits for GLSL extensions
*/
/*@{*/
+ /* ARB extensions go here, sorted alphabetically.
+ */
+ bool ARB_arrays_of_arrays_enable;
+ bool ARB_arrays_of_arrays_warn;
+ bool ARB_compute_shader_enable;
+ bool ARB_compute_shader_warn;
+ bool ARB_conservative_depth_enable;
+ bool ARB_conservative_depth_warn;
bool ARB_draw_buffers_enable;
bool ARB_draw_buffers_warn;
bool ARB_draw_instanced_enable;
bool ARB_explicit_attrib_location_warn;
bool ARB_fragment_coord_conventions_enable;
bool ARB_fragment_coord_conventions_warn;
- bool ARB_texture_rectangle_enable;
- bool ARB_texture_rectangle_warn;
- bool EXT_texture_array_enable;
- bool EXT_texture_array_warn;
- bool ARB_shader_texture_lod_enable;
- bool ARB_shader_texture_lod_warn;
+ bool ARB_gpu_shader5_enable;
+ bool ARB_gpu_shader5_warn;
+ bool ARB_sample_shading_enable;
+ bool ARB_sample_shading_warn;
+ bool ARB_separate_shader_objects_enable;
+ bool ARB_separate_shader_objects_warn;
+ bool ARB_shader_atomic_counters_enable;
+ bool ARB_shader_atomic_counters_warn;
+ bool ARB_shader_bit_encoding_enable;
+ bool ARB_shader_bit_encoding_warn;
+ bool ARB_shader_image_load_store_enable;
+ bool ARB_shader_image_load_store_warn;
bool ARB_shader_stencil_export_enable;
bool ARB_shader_stencil_export_warn;
+ bool ARB_shader_texture_lod_enable;
+ bool ARB_shader_texture_lod_warn;
+ bool ARB_shading_language_420pack_enable;
+ bool ARB_shading_language_420pack_warn;
+ bool ARB_shading_language_packing_enable;
+ bool ARB_shading_language_packing_warn;
+ bool ARB_texture_cube_map_array_enable;
+ bool ARB_texture_cube_map_array_warn;
+ bool ARB_texture_gather_enable;
+ bool ARB_texture_gather_warn;
+ bool ARB_texture_multisample_enable;
+ bool ARB_texture_multisample_warn;
+ bool ARB_texture_query_levels_enable;
+ bool ARB_texture_query_levels_warn;
+ bool ARB_texture_query_lod_enable;
+ bool ARB_texture_query_lod_warn;
+ bool ARB_texture_rectangle_enable;
+ bool ARB_texture_rectangle_warn;
+ bool ARB_uniform_buffer_object_enable;
+ bool ARB_uniform_buffer_object_warn;
+ bool ARB_viewport_array_enable;
+ bool ARB_viewport_array_warn;
+
+ /* KHR extensions go here, sorted alphabetically.
+ */
+
+ /* OES extensions go here, sorted alphabetically.
+ */
+ bool OES_EGL_image_external_enable;
+ bool OES_EGL_image_external_warn;
+ bool OES_standard_derivatives_enable;
+ bool OES_standard_derivatives_warn;
+ bool OES_texture_3D_enable;
+ bool OES_texture_3D_warn;
+
+ /* All other extensions go here, sorted alphabetically.
+ */
bool AMD_conservative_depth_enable;
bool AMD_conservative_depth_warn;
bool AMD_shader_stencil_export_enable;
bool AMD_shader_stencil_export_warn;
- bool OES_texture_3D_enable;
- bool OES_texture_3D_warn;
+ bool AMD_shader_trinary_minmax_enable;
+ bool AMD_shader_trinary_minmax_warn;
+ bool AMD_vertex_shader_layer_enable;
+ bool AMD_vertex_shader_layer_warn;
+ bool EXT_separate_shader_objects_enable;
+ bool EXT_separate_shader_objects_warn;
+ bool EXT_shader_integer_mix_enable;
+ bool EXT_shader_integer_mix_warn;
+ bool EXT_texture_array_enable;
+ bool EXT_texture_array_warn;
/*@}*/
/** Extensions supported by the OpenGL implementation. */
const struct gl_extensions *extensions;
- /** Shaders containing built-in functions that are used for linking. */
- struct gl_shader *builtins_to_link[16];
- unsigned num_builtins_to_link;
-};
+ bool uses_builtin_functions;
+ bool fs_uses_gl_fragcoord;
-typedef struct YYLTYPE {
- int first_line;
- int first_column;
- int last_line;
- int last_column;
- unsigned source;
-} YYLTYPE;
-# define YYLTYPE_IS_DECLARED 1
-# define YYLTYPE_IS_TRIVIAL 1
+ /**
+ * For geometry shaders, size of the most recently seen input declaration
+ * that was a sized array, or 0 if no sized input array declarations have
+ * been seen.
+ *
+ * Unused for other shader types.
+ */
+ unsigned gs_input_size;
+
+ bool early_fragment_tests;
+
+ /** Atomic counter offsets by binding */
+ unsigned atomic_counter_offsets[MAX_COMBINED_ATOMIC_BUFFERS];
+};
# define YYLLOC_DEFAULT(Current, Rhs, N) \
do { \
(Current).source = 0; \
} while (0)
-extern void _mesa_glsl_error(YYLTYPE *locp, _mesa_glsl_parse_state *state,
- const char *fmt, ...);
-
/**
* Emit a warning to the shader log
*
extern void _mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state *state);
union YYSTYPE;
-extern int _mesa_glsl_lex(union YYSTYPE *yylval, YYLTYPE *yylloc,
- void *scanner);
+extern int _mesa_glsl_lexer_lex(union YYSTYPE *yylval, YYLTYPE *yylloc,
+ void *scanner);
extern int _mesa_glsl_parse(struct _mesa_glsl_parse_state *);
YYLTYPE *behavior_locp,
_mesa_glsl_parse_state *state);
-/**
- * Get the textual name of the specified shader target
- */
-extern const char *
-_mesa_glsl_shader_target_name(enum _mesa_glsl_parser_targets target);
-
-
#endif /* __cplusplus */
extern "C" {
#endif
-extern int preprocess(void *ctx, const char **shader, char **info_log,
- const struct gl_extensions *extensions, int api);
+/**
+ * Get the textual name of the specified shader stage (which is a
+ * gl_shader_stage).
+ */
+extern const char *
+_mesa_shader_stage_to_string(unsigned stage);
+
+extern int glcpp_preprocess(void *ctx, const char **shader, char **info_log,
+ const struct gl_extensions *extensions, struct gl_context *gl_ctx);
extern void _mesa_destroy_shader_compiler(void);
extern void _mesa_destroy_shader_compiler_caches(void);
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