Merge branch 'glsl2'

Conflicts:
	src/mesa/program/prog_optimize.c

6 files changed, 111 insertions, 15 deletions

diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h
index 825073ca886..71d0f570e4b 100644
--- a/src/mesa/main/dd.h
+++ b/src/mesa/main/dd.h
@@ -595,6 +595,27 @@ struct dd_function_table {
    
    /*@}*/
 
+   /**
+    * \name GLSL shader/program functions.
+    */
+   /*@{*/
+   /**
+    * Called when a shader is compiled.
+    *
+    * Note that not all shader objects get ShaderCompile called on
+    * them.  Notably, the shaders containing builtin functions do not
+    * have CompileShader() called, so if lowering passes are done they
+    * need to also be performed in LinkShader().
+    */
+   GLboolean (*CompileShader)(GLcontext *ctx, struct gl_shader *shader);
+   /**
+    * Called when a shader program is linked.
+    *
+    * This gives drivers an opportunity to clone the IR and make their
+    * own transformations on it for the purposes of code generation.
+    */
+   GLboolean (*LinkShader)(GLcontext *ctx, struct gl_shader_program *shader);
+   /*@}*/
 
    /**
     * \name State-changing functions.
diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index 9c2ffd66d69..e967b147311 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -116,6 +116,35 @@ typedef union { GLfloat f; GLint i; } fi_type;
 #endif
 
 
+/**
+ * \name Work-arounds for platforms that lack C99 math functions
+ */
+/*@{*/
+#if (defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE < 600)) && !defined(_ISOC99_SOURCE) \
+   && (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)) \
+   && (!defined(_MSC_VER) || (_MSC_VER < 1400))
+#define acosf(f) ((float) acos(f))
+#define asinf(f) ((float) asin(f))
+#define atan2f(x,y) ((float) atan2(x,y))
+#define atanf(f) ((float) atan(f))
+#define cielf(f) ((float) ciel(f))
+#define cosf(f) ((float) cos(f))
+#define coshf(f) ((float) cosh(f))
+#define expf(f) ((float) exp(f))
+#define exp2f(f) ((float) exp2(f))
+#define floorf(f) ((float) floor(f))
+#define logf(f) ((float) log(f))
+#define log2f(f) ((float) log2(f))
+#define powf(x,y) ((float) pow(x,y))
+#define sinf(f) ((float) sin(f))
+#define sinhf(f) ((float) sinh(f))
+#define sqrtf(f) ((float) sqrt(f))
+#define tanf(f) ((float) tan(f))
+#define tanhf(f) ((float) tanh(f))
+#define truncf(f) ((float) trunc(f))
+#endif
+/*@}*/
+
 /***
  *** LOG2: Log base 2 of float
  ***/
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 8d92892ad7d..b8bcda56bfa 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2084,6 +2084,15 @@ struct gl_shader
    struct gl_program *Program;  /**< Post-compile assembly code */
    GLchar *InfoLog;
    struct gl_sl_pragmas Pragmas;
+
+   unsigned Version;       /**< GLSL version used for linking */
+
+   struct exec_list *ir;
+   struct glsl_symbol_table *symbols;
+
+   /** Shaders containing built-in functions that are used for linking. */
+   struct gl_shader *builtins_to_link[16];
+   unsigned num_builtins_to_link;
 };
 
 
@@ -2129,6 +2138,16 @@ struct gl_shader_program
    GLboolean Validated;
    GLboolean _Used;        /**< Ever used for drawing? */
    GLchar *InfoLog;
+
+   unsigned Version;       /**< GLSL version used for linking */
+
+   /**
+    * Per-stage shaders resulting from the first stage of linking.
+    */
+   /*@{*/
+   GLuint _NumLinkedShaders;
+   struct gl_shader *_LinkedShaders[2];
+   /*@}*/
 };   
 
 
@@ -2154,6 +2173,11 @@ struct gl_shader_state
    GLboolean EmitCondCodes;             /**< Use condition codes? */
    GLboolean EmitComments;              /**< Annotated instructions */
    GLboolean EmitNVTempInitialization;  /**< 0-fill NV temp registers */
+   /**
+    * Attempts to flatten all ir_if (OPCODE_IF) for GPUs that can't
+    * support control flow.
+    */
+   GLboolean EmitNoIfs;
    void *MemPool;
    GLbitfield Flags;                    /**< Mask of GLSL_x flags */
    struct gl_sl_pragmas DefaultPragmas; /**< Default #pragma settings */
diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index 9cb2391035d..89b9557e84f 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -48,6 +48,7 @@
 #include "program/prog_uniform.h"
 #include "slang/slang_compile.h"
 #include "slang/slang_link.h"
+#include "talloc.h"
 
 
 /** Define this to enable shader substitution (see below) */
@@ -99,6 +100,7 @@ _mesa_init_shader_state(GLcontext *ctx)
    ctx->Shader.EmitContReturn = GL_TRUE;
    ctx->Shader.EmitCondCodes = GL_FALSE;
    ctx->Shader.EmitComments = GL_FALSE;
+   ctx->Shader.EmitNoIfs = GL_FALSE;
    ctx->Shader.Flags = get_shader_flags();
 
    /* Default pragma settings */
@@ -800,7 +802,7 @@ compile_shader(GLcontext *ctx, GLuint shaderObj)
    /* this call will set the sh->CompileStatus field to indicate if
     * compilation was successful.
     */
-   (void) _slang_compile(ctx, sh);
+   _mesa_glsl_compile_shader(ctx, sh);
 }
 
 
@@ -826,7 +828,7 @@ link_program(GLcontext *ctx, GLuint program)
 
    FLUSH_VERTICES(ctx, _NEW_PROGRAM);
 
-   _slang_link(ctx, program, shProg);
+   _mesa_glsl_link_shader(ctx, shProg);
 
    /* debug code */
    if (0) {
@@ -1051,9 +1053,9 @@ validate_program(GLcontext *ctx, GLuint program)
    if (!shProg->Validated) {
       /* update info log */
       if (shProg->InfoLog) {
-         free(shProg->InfoLog);
+         talloc_free(shProg->InfoLog);
       }
-      shProg->InfoLog = _mesa_strdup(errMsg);
+      shProg->InfoLog = talloc_strdup(shProg, errMsg);
    }
 }
 
diff --git a/src/mesa/main/shaderobj.c b/src/mesa/main/shaderobj.c
index 14bbb2e4bc3..863d50fbe55 100644
--- a/src/mesa/main/shaderobj.c
+++ b/src/mesa/main/shaderobj.c
@@ -36,7 +36,7 @@
 #include "program/program.h"
 #include "program/prog_parameter.h"
 #include "program/prog_uniform.h"
-
+#include "talloc.h"
 
 /**********************************************************************/
 /*** Shader object functions                                        ***/
@@ -92,13 +92,13 @@ _mesa_reference_shader(GLcontext *ctx, struct gl_shader **ptr,
  * Allocate a new gl_shader object, initialize it.
  * Called via ctx->Driver.NewShader()
  */
-static struct gl_shader *
+struct gl_shader *
 _mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type)
 {
    struct gl_shader *shader;
    assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER ||
           type == GL_GEOMETRY_SHADER_ARB);
-   shader = CALLOC_STRUCT(gl_shader);
+   shader = talloc_zero(NULL, struct gl_shader);
    if (shader) {
       shader->Type = type;
       shader->Name = name;
@@ -117,10 +117,8 @@ __mesa_delete_shader(GLcontext *ctx, struct gl_shader *sh)
 {
    if (sh->Source)
       free((void *) sh->Source);
-   if (sh->InfoLog)
-      free(sh->InfoLog);
    _mesa_reference_program(ctx, &sh->Program, NULL);
-   free(sh);
+   talloc_free(sh);
 }
 
 
@@ -235,7 +233,7 @@ static struct gl_shader_program *
 _mesa_new_shader_program(GLcontext *ctx, GLuint name)
 {
    struct gl_shader_program *shProg;
-   shProg = CALLOC_STRUCT(gl_shader_program);
+   shProg = talloc_zero(NULL, struct gl_shader_program);
    if (shProg) {
       shProg->Type = GL_SHADER_PROGRAM_MESA;
       shProg->Name = name;
@@ -305,7 +303,7 @@ _mesa_free_shader_program_data(GLcontext *ctx,
    }
 
    if (shProg->InfoLog) {
-      free(shProg->InfoLog);
+      talloc_free(shProg->InfoLog);
       shProg->InfoLog = NULL;
    }
 
@@ -328,7 +326,7 @@ __mesa_delete_shader_program(GLcontext *ctx, struct gl_shader_program *shProg)
 {
    _mesa_free_shader_program_data(ctx, shProg);
 
-   free(shProg);
+   talloc_free(shProg);
 }
 
 
@@ -389,4 +387,6 @@ _mesa_init_shader_object_functions(struct dd_function_table *driver)
    driver->DeleteShader = __mesa_delete_shader;
    driver->NewShaderProgram = _mesa_new_shader_program;
    driver->DeleteShaderProgram = __mesa_delete_shader_program;
+   driver->CompileShader = _mesa_ir_compile_shader;
+   driver->LinkShader = _mesa_ir_link_shader;
 }
diff --git a/src/mesa/main/shaderobj.h b/src/mesa/main/shaderobj.h
index d6b37b45963..1b96316b67b 100644
--- a/src/mesa/main/shaderobj.h
+++ b/src/mesa/main/shaderobj.h
@@ -27,8 +27,22 @@
 #define SHADEROBJ_H
 
 
-#include "glheader.h"
-#include "mtypes.h"
+#include "main/glheader.h"
+#include "main/mtypes.h"
+#include "program/ir_to_mesa.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+/**
+ * Internal functions
+ */
+
+extern void
+_mesa_init_shader_state(GLcontext * ctx);
+
+extern void
+_mesa_free_shader_state(GLcontext *ctx);
 
 
 extern void
@@ -48,6 +62,9 @@ _mesa_reference_shader_program(GLcontext *ctx,
                                struct gl_shader_program **ptr,
                                struct gl_shader_program *shProg);
 
+extern struct gl_shader *
+_mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type);
+
 extern struct gl_shader_program *
 _mesa_lookup_shader_program(GLcontext *ctx, GLuint name);
 
@@ -74,5 +91,8 @@ _mesa_init_shader_state(GLcontext *ctx);
 extern void
 _mesa_free_shader_state(GLcontext *ctx);
 
+#ifdef __cplusplus
+}
+#endif
 
 #endif /* SHADEROBJ_H */