vkd3d-shader/hlsl: Handle effect group statement.

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>

libs/vkd3d-shader/hlsl.c

@@ -3366,6 +3366,7 @@ static void declare_predefined_types(struct hlsl_ctx *ctx)
         {"float",           HLSL_CLASS_SCALAR, HLSL_TYPE_FLOAT,         1, 1},
         {"vector",          HLSL_CLASS_VECTOR, HLSL_TYPE_FLOAT,         4, 1},
         {"matrix",          HLSL_CLASS_MATRIX, HLSL_TYPE_FLOAT,         4, 4},
+        {"fxgroup",         HLSL_CLASS_OBJECT, HLSL_TYPE_EFFECT_GROUP,  1, 1},
         {"STRING",          HLSL_CLASS_OBJECT, HLSL_TYPE_STRING,        1, 1},
         {"TEXTURE",         HLSL_CLASS_OBJECT, HLSL_TYPE_TEXTURE,       1, 1},
         {"PIXELSHADER",     HLSL_CLASS_OBJECT, HLSL_TYPE_PIXELSHADER,   1, 1},

libs/vkd3d-shader/hlsl.h

@@ -96,6 +96,7 @@ enum hlsl_base_type
     HLSL_TYPE_PIXELSHADER,
     HLSL_TYPE_VERTEXSHADER,
     HLSL_TYPE_TECHNIQUE,
+    HLSL_TYPE_EFFECT_GROUP,
     HLSL_TYPE_STRING,
     HLSL_TYPE_VOID,
 };
@@ -405,6 +406,8 @@ struct hlsl_ir_var
     struct list scope_entry;
     /* Item entry in hlsl_ctx.extern_vars, if the variable is extern. */
     struct list extern_entry;
+    /* Scope that variable itself defines, used to provide a container for techniques and passes. */
+    struct hlsl_scope *scope;
 
     /* Indexes of the IR instructions where the variable is first written and last read (liveness
      *   range). The IR instructions are numerated starting from 2, because 0 means unused, and 1

libs/vkd3d-shader/hlsl.y

@@ -1120,6 +1120,31 @@ static bool add_technique(struct hlsl_ctx *ctx, const char *name, const char *ty
     return true;
 }
 
+static bool add_effect_group(struct hlsl_ctx *ctx, const char *name, struct hlsl_scope *scope,
+        const struct vkd3d_shader_location *loc)
+{
+    struct hlsl_ir_var *var;
+    struct hlsl_type *type;
+
+    type = hlsl_get_type(ctx->globals, "fxgroup", false, false);
+    if (!(var = hlsl_new_var(ctx, name, type, loc, NULL, 0, NULL)))
+        return false;
+    var->scope = scope;
+
+    if (!hlsl_add_var(ctx, var, false))
+    {
+        struct hlsl_ir_var *old = hlsl_get_var(ctx->cur_scope, var->name);
+
+        hlsl_error(ctx, &var->loc, VKD3D_SHADER_ERROR_HLSL_REDEFINED,
+                "Identifier \"%s\" was already declared in this scope.", var->name);
+        hlsl_note(ctx, &old->loc, VKD3D_SHADER_LOG_ERROR, "\"%s\" was previously declared here.", old->name);
+        hlsl_free_var(var);
+        return false;
+    }
+
+    return true;
+}
+
 static struct hlsl_reg_reservation parse_reg_reservation(const char *reg_string)
 {
     struct hlsl_reg_reservation reservation = {0};
@@ -5120,6 +5145,7 @@ hlsl_prog:
         }
     | hlsl_prog preproc_directive
     | hlsl_prog global_technique
+    | hlsl_prog effect_group
     | hlsl_prog ';'
 
 technique_name:
@@ -5166,6 +5192,23 @@ global_technique:
     | technique10
     | technique11
 
+group_technique:
+      technique10
+    | technique11
+
+group_techniques:
+      group_technique
+    | group_techniques group_technique
+
+effect_group:
+      KW_FXGROUP any_identifier '{' scope_start group_techniques '}'
+        {
+            struct hlsl_scope *scope = ctx->cur_scope;
+            hlsl_pop_scope(ctx);
+            if (!(add_effect_group(ctx, $2, scope, &@2)))
+                YYABORT;
+        }
+
 buffer_declaration:
       buffer_type any_identifier colon_attribute
         {

tests/hlsl/technique-fx_2.shader_test

@@ -124,7 +124,7 @@ fxgroup group
 }
 
 % Regular shaders with technique blocks
-[vertex shader todo]
+[vertex shader]
 float4 main() : sv_position
 {
     return 0;
@@ -147,7 +147,7 @@ fxgroup group
     technique10 {}
 }
 
-[pixel shader todo]
+[pixel shader]
 float4 main() : sv_target
 {
     return 0;

tests/hlsl/technique-fx_4.shader_test

@@ -97,7 +97,7 @@ float4 technIque10;
 float4 technIque11;
 
 % Regular shaders with technique blocks
-[vertex shader todo]
+[vertex shader]
 float4 main() : sv_position
 {
     return 0;
@@ -120,7 +120,7 @@ fxgroup group
     technique10 {}
 }
 
-[pixel shader todo]
+[pixel shader]
 float4 main() : sv_target
 {
     return 0;

tests/hlsl/technique-fx_5.shader_test

@@ -97,7 +97,7 @@ float4 technIque10;
 float4 technIque11;
 
 % Regular shaders with technique blocks
-[vertex shader todo]
+[vertex shader]
 float4 main() : sv_position
 {
     return 0;
@@ -120,7 +120,7 @@ fxgroup group
     technique10 {}
 }
 
-[pixel shader todo]
+[pixel shader]
 float4 main() : sv_target
 {
     return 0;