Merge branch 'lp-offset-twoside'
[mesa.git] / src / glsl / glsl_parser_extras.cpp
index bcf2579733de9cf284a6bdf166f31e42a7a30a49..302cfbc5668e5917804e147d1e64f0be03e32ece 100644 (file)
 
 extern "C" {
 #include <talloc.h>
-#include "main/mtypes.h"
+#include "main/core.h" /* for struct gl_context */
 }
 
 #include "ast.h"
 #include "glsl_parser_extras.h"
 #include "glsl_parser.h"
+#include "ir_optimization.h"
+#include "loop_analysis.h"
 
-_mesa_glsl_parse_state::_mesa_glsl_parse_state(struct __GLcontextRec *ctx,
+_mesa_glsl_parse_state::_mesa_glsl_parse_state(struct gl_context *ctx,
                                               GLenum target, void *mem_ctx)
 {
    switch (target) {
@@ -49,30 +51,34 @@ _mesa_glsl_parse_state::_mesa_glsl_parse_state(struct __GLcontextRec *ctx,
    this->info_log = talloc_strdup(mem_ctx, "");
    this->error = false;
    this->loop_or_switch_nesting = NULL;
-   this->ARB_texture_rectangle_enable = true;
 
-   if (ctx != NULL) {
-      this->extensions = &ctx->Extensions;
-
-      this->Const.MaxLights = ctx->Const.MaxLights;
-      this->Const.MaxClipPlanes = ctx->Const.MaxClipPlanes;
-      this->Const.MaxTextureUnits = ctx->Const.MaxTextureUnits;
-      this->Const.MaxTextureCoords = ctx->Const.MaxTextureCoordUnits;
-      this->Const.MaxVertexAttribs = ctx->Const.VertexProgram.MaxAttribs;
-      this->Const.MaxVertexUniformComponents = ctx->Const.VertexProgram.MaxUniformComponents;
-      this->Const.MaxVaryingFloats = ctx->Const.MaxVarying * 4;
-      this->Const.MaxVertexTextureImageUnits = ctx->Const.MaxVertexTextureImageUnits;
-      this->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxCombinedTextureImageUnits;
-      this->Const.MaxTextureImageUnits = ctx->Const.MaxTextureImageUnits;
-      this->Const.MaxFragmentUniformComponents = ctx->Const.FragmentProgram.MaxUniformComponents;
-
-      this->Const.MaxDrawBuffers = ctx->Const.MaxDrawBuffers;
-   } else {
-      static struct gl_extensions null_extensions;
+   /* Set default language version and extensions */
+   this->language_version = 110;
+   this->es_shader = false;
+   this->ARB_texture_rectangle_enable = true;
 
-      memset(&null_extensions, 0, sizeof(null_extensions));
-      this->extensions = &null_extensions;
+   /* OpenGL ES 2.0 has different defaults from desktop GL. */
+   if (ctx->API == API_OPENGLES2) {
+      this->language_version = 100;
+      this->es_shader = true;
+      this->ARB_texture_rectangle_enable = false;
    }
+
+   this->extensions = &ctx->Extensions;
+
+   this->Const.MaxLights = ctx->Const.MaxLights;
+   this->Const.MaxClipPlanes = ctx->Const.MaxClipPlanes;
+   this->Const.MaxTextureUnits = ctx->Const.MaxTextureUnits;
+   this->Const.MaxTextureCoords = ctx->Const.MaxTextureCoordUnits;
+   this->Const.MaxVertexAttribs = ctx->Const.VertexProgram.MaxAttribs;
+   this->Const.MaxVertexUniformComponents = ctx->Const.VertexProgram.MaxUniformComponents;
+   this->Const.MaxVaryingFloats = ctx->Const.MaxVarying * 4;
+   this->Const.MaxVertexTextureImageUnits = ctx->Const.MaxVertexTextureImageUnits;
+   this->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxCombinedTextureImageUnits;
+   this->Const.MaxTextureImageUnits = ctx->Const.MaxTextureImageUnits;
+   this->Const.MaxFragmentUniformComponents = ctx->Const.FragmentProgram.MaxUniformComponents;
+
+   this->Const.MaxDrawBuffers = ctx->Const.MaxDrawBuffers;
 }
 
 const char *
@@ -82,7 +88,6 @@ _mesa_glsl_shader_target_name(enum _mesa_glsl_parser_targets target)
    case vertex_shader:   return "vertex";
    case fragment_shader: return "fragment";
    case geometry_shader: return "geometry";
-   case ir_shader:       break;
    }
 
    assert(!"Should not get here.");
@@ -175,6 +180,20 @@ _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp,
         state->ARB_draw_buffers_enable = (ext_mode != extension_disable);
         state->ARB_draw_buffers_warn = (ext_mode == extension_warn);
       }
+   } else if (strcmp(name, "GL_ARB_explicit_attrib_location") == 0) {
+      state->ARB_explicit_attrib_location_enable =
+        (ext_mode != extension_disable);
+      state->ARB_explicit_attrib_location_warn =
+        (ext_mode == extension_warn);
+
+      unsupported = !state->extensions->ARB_explicit_attrib_location;
+   } else if (strcmp(name, "GL_ARB_fragment_coord_conventions") == 0) {
+      state->ARB_fragment_coord_conventions_enable =
+        (ext_mode != extension_disable);
+      state->ARB_fragment_coord_conventions_warn =
+        (ext_mode == extension_warn);
+
+      unsupported = !state->extensions->ARB_fragment_coord_conventions;
    } else if (strcmp(name, "GL_ARB_texture_rectangle") == 0) {
       state->ARB_texture_rectangle_enable = (ext_mode != extension_disable);
       state->ARB_texture_rectangle_warn = (ext_mode == extension_warn);
@@ -183,6 +202,14 @@ _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp,
       state->EXT_texture_array_warn = (ext_mode == extension_warn);
 
       unsupported = !state->extensions->EXT_texture_array;
+   } else if (strcmp(name, "GL_ARB_shader_stencil_export") == 0) {
+      if (state->target != fragment_shader) {
+        unsupported = true;
+      } else {
+        state->ARB_shader_stencil_export_enable = (ext_mode != extension_disable);
+        state->ARB_shader_stencil_export_warn = (ext_mode == extension_warn);
+        unsupported = !state->extensions->ARB_shader_stencil_export;
+      }
    } else {
       unsupported = true;
    }
@@ -206,37 +233,37 @@ _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp,
 void
 _mesa_ast_type_qualifier_print(const struct ast_type_qualifier *q)
 {
-   if (q->constant)
+   if (q->flags.q.constant)
       printf("const ");
 
-   if (q->invariant)
+   if (q->flags.q.invariant)
       printf("invariant ");
 
-   if (q->attribute)
+   if (q->flags.q.attribute)
       printf("attribute ");
 
-   if (q->varying)
+   if (q->flags.q.varying)
       printf("varying ");
 
-   if (q->in && q->out) 
+   if (q->flags.q.in && q->flags.q.out)
       printf("inout ");
    else {
-      if (q->in)
+      if (q->flags.q.in)
         printf("in ");
 
-      if (q->out)
+      if (q->flags.q.out)
         printf("out ");
    }
 
-   if (q->centroid)
+   if (q->flags.q.centroid)
       printf("centroid ");
-   if (q->uniform)
+   if (q->flags.q.uniform)
       printf("uniform ");
-   if (q->smooth)
+   if (q->flags.q.smooth)
       printf("smooth ");
-   if (q->flat)
+   if (q->flags.q.flat)
       printf("flat ");
-   if (q->noperspective)
+   if (q->flags.q.noperspective)
       printf("noperspective ");
 }
 
@@ -250,7 +277,9 @@ ast_node::print(void) const
 
 ast_node::ast_node(void)
 {
-   /* empty */
+   this->location.source = 0;
+   this->location.line = 0;
+   this->location.column = 0;
 }
 
 
@@ -665,6 +694,83 @@ ast_struct_specifier::print(void) const
 ast_struct_specifier::ast_struct_specifier(char *identifier,
                                           ast_node *declarator_list)
 {
+   if (identifier == NULL) {
+      static unsigned anon_count = 1;
+      identifier = talloc_asprintf(this, "#anon_struct_%04x", anon_count);
+      anon_count++;
+   }
    name = identifier;
    this->declarations.push_degenerate_list_at_head(&declarator_list->link);
 }
+
+bool
+do_common_optimization(exec_list *ir, bool linked, unsigned max_unroll_iterations)
+{
+   GLboolean progress = GL_FALSE;
+
+   progress = lower_instructions(ir, SUB_TO_ADD_NEG) || progress;
+
+   if (linked) {
+      progress = do_function_inlining(ir) || progress;
+      progress = do_dead_functions(ir) || progress;
+   }
+   progress = do_structure_splitting(ir) || progress;
+   progress = do_if_simplification(ir) || progress;
+   progress = do_copy_propagation(ir) || progress;
+   if (linked)
+      progress = do_dead_code(ir) || progress;
+   else
+      progress = do_dead_code_unlinked(ir) || progress;
+   progress = do_dead_code_local(ir) || progress;
+   progress = do_tree_grafting(ir) || progress;
+   progress = do_constant_propagation(ir) || progress;
+   if (linked)
+      progress = do_constant_variable(ir) || progress;
+   else
+      progress = do_constant_variable_unlinked(ir) || progress;
+   progress = do_constant_folding(ir) || progress;
+   progress = do_algebraic(ir) || progress;
+   progress = do_lower_jumps(ir) || progress;
+   progress = do_vec_index_to_swizzle(ir) || progress;
+   progress = do_swizzle_swizzle(ir) || progress;
+   progress = do_noop_swizzle(ir) || progress;
+
+   progress = optimize_redundant_jumps(ir) || progress;
+
+   loop_state *ls = analyze_loop_variables(ir);
+   progress = set_loop_controls(ir, ls) || progress;
+   progress = unroll_loops(ir, ls, max_unroll_iterations) || progress;
+   delete ls;
+
+   return progress;
+}
+
+extern "C" {
+
+/**
+ * To be called at GL teardown time, this frees compiler datastructures.
+ *
+ * After calling this, any previously compiled shaders and shader
+ * programs would be invalid.  So this should happen at approximately
+ * program exit.
+ */
+void
+_mesa_destroy_shader_compiler(void)
+{
+   _mesa_destroy_shader_compiler_caches();
+
+   _mesa_glsl_release_types();
+}
+
+/**
+ * Releases compiler caches to trade off performance for memory.
+ *
+ * Intended to be used with glReleaseShaderCompiler().
+ */
+void
+_mesa_destroy_shader_compiler_caches(void)
+{
+   _mesa_glsl_release_functions();
+}
+
+}