1 files changed, 95 insertions, 56 deletions

diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index e6c7f7aa3f8..030236e7350 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -404,6 +404,14 @@ bind_attrib_location(struct gl_context *ctx, GLuint program, GLuint index,
 }
 
 
+static void
+bind_frag_data_location(struct gl_context *ctx, GLuint program,
+                        GLuint colorNumber, const GLchar *name)
+{
+   _mesa_problem(ctx, "bind_frag_data_location() not implemented yet");
+}
+
+
 static GLuint
 create_shader(struct gl_context *ctx, GLenum type)
 {
@@ -605,6 +613,16 @@ get_attached_shaders(struct gl_context *ctx, GLuint program, GLsizei maxCount,
 }
 
 
+static GLint
+get_frag_data_location(struct gl_context *ctx, GLuint program,
+                       const GLchar *name)
+{
+   _mesa_problem(ctx, "get_frag_data_location() not implemented yet");
+   return -1;
+}
+
+
+
 /**
  * glGetHandleARB() - return ID/name of currently bound shader program.
  */
@@ -918,9 +936,9 @@ print_shader_info(const struct gl_shader_program *shProg)
 /**
  * Use the named shader program for subsequent glUniform calls
  */
-static void
-active_program(struct gl_context *ctx, struct gl_shader_program *shProg,
-	       const char *caller)
+void
+_mesa_active_program(struct gl_context *ctx, struct gl_shader_program *shProg,
+		     const char *caller)
 {
    if ((shProg != NULL) && !shProg->LinkStatus) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
@@ -974,6 +992,7 @@ use_shader_program(struct gl_context *ctx, GLenum type,
    }
 
    if (*target != shProg) {
+      FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS);
       _mesa_reference_shader_program(ctx, target, shProg);
       return true;
    }
@@ -985,49 +1004,12 @@ use_shader_program(struct gl_context *ctx, GLenum type,
  * Use the named shader program for subsequent rendering.
  */
 void
-_mesa_use_program(struct gl_context *ctx, GLuint program)
+_mesa_use_program(struct gl_context *ctx, struct gl_shader_program *shProg)
 {
-   struct gl_shader_program *shProg;
-   struct gl_transform_feedback_object *obj =
-      ctx->TransformFeedback.CurrentObject;
-   bool changed = false;
-
-   if (obj->Active) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glUseProgram(transform feedback active)");
-      return;
-   }
-
-   if (program) {
-      shProg = _mesa_lookup_shader_program_err(ctx, program, "glUseProgram");
-      if (!shProg) {
-         return;
-      }
-      if (!shProg->LinkStatus) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glUseProgram(program %u not linked)", program);
-         return;
-      }
-
-      /* debug code */
-      if (ctx->Shader.Flags & GLSL_USE_PROG) {
-         print_shader_info(shProg);
-      }
-   }
-   else {
-      shProg = NULL;
-   }
-
-   changed = use_shader_program(ctx, GL_VERTEX_SHADER, shProg);
-   changed = use_shader_program(ctx, GL_GEOMETRY_SHADER_ARB, shProg)
-      || changed;
-   changed = use_shader_program(ctx, GL_FRAGMENT_SHADER, shProg)
-      || changed;
-   active_program(ctx, shProg, "glUseProgram");
-
-   if (changed) {
-      FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS);
-   }
+   use_shader_program(ctx, GL_VERTEX_SHADER, shProg);
+   use_shader_program(ctx, GL_GEOMETRY_SHADER_ARB, shProg);
+   use_shader_program(ctx, GL_FRAGMENT_SHADER, shProg);
+   _mesa_active_program(ctx, shProg, "glUseProgram");
 
    if (ctx->Driver.UseProgram)
       ctx->Driver.UseProgram(ctx, shProg);
@@ -1185,6 +1167,16 @@ _mesa_BindAttribLocationARB(GLhandleARB program, GLuint index,
 }
 
 
+/* GL_EXT_gpu_shader4, GL3 */
+void GLAPIENTRY
+_mesa_BindFragDataLocation(GLuint program, GLuint colorNumber,
+                           const GLchar *name)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   bind_frag_data_location(ctx, program, colorNumber, name);
+}
+
+
 void GLAPIENTRY
 _mesa_CompileShaderARB(GLhandleARB shaderObj)
 {
@@ -1315,6 +1307,16 @@ _mesa_GetAttribLocationARB(GLhandleARB program, const GLcharARB * name)
 }
 
 
+/* GL_EXT_gpu_shader4, GL3 */
+GLint GLAPIENTRY
+_mesa_GetFragDataLocation(GLuint program, const GLchar *name)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   return get_frag_data_location(ctx, program, name);
+}
+
+
+
 void GLAPIENTRY
 _mesa_GetInfoLogARB(GLhandleARB object, GLsizei maxLength, GLsizei * length,
                     GLcharARB * infoLog)
@@ -1576,8 +1578,37 @@ void GLAPIENTRY
 _mesa_UseProgramObjectARB(GLhandleARB program)
 {
    GET_CURRENT_CONTEXT(ctx);
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
-   _mesa_use_program(ctx, program);
+   struct gl_shader_program *shProg;
+   struct gl_transform_feedback_object *obj =
+      ctx->TransformFeedback.CurrentObject;
+
+   if (obj->Active) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glUseProgram(transform feedback active)");
+      return;
+   }
+
+   if (program) {
+      shProg = _mesa_lookup_shader_program_err(ctx, program, "glUseProgram");
+      if (!shProg) {
+         return;
+      }
+      if (!shProg->LinkStatus) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glUseProgram(program %u not linked)", program);
+         return;
+      }
+
+      /* debug code */
+      if (ctx->Shader.Flags & GLSL_USE_PROG) {
+         print_shader_info(shProg);
+      }
+   }
+   else {
+      shProg = NULL;
+   }
+
+   _mesa_use_program(ctx, shProg);
 }
 
 
@@ -1693,12 +1724,21 @@ _mesa_ProgramParameteriARB(GLuint program, GLenum pname,
 
 #endif
 
+void
+_mesa_use_shader_program(struct gl_context *ctx, GLenum type,
+			 struct gl_shader_program *shProg)
+{
+   use_shader_program(ctx, type, shProg);
+
+   if (ctx->Driver.UseProgram)
+      ctx->Driver.UseProgram(ctx, shProg);
+}
+
 void GLAPIENTRY
 _mesa_UseShaderProgramEXT(GLenum type, GLuint program)
 {
    GET_CURRENT_CONTEXT(ctx);
    struct gl_shader_program *shProg = NULL;
-   bool changed = false;
 
    if (!validate_shader_target(ctx, type)) {
       _mesa_error(ctx, GL_INVALID_ENUM, "glUseShaderProgramEXT(type)");
@@ -1724,13 +1764,7 @@ _mesa_UseShaderProgramEXT(GLenum type, GLuint program)
       }
    }
 
-   changed = use_shader_program(ctx, type, shProg);
-   if (changed)
-      FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS);
-
-   if (ctx->Driver.UseProgram)
-      ctx->Driver.UseProgram(ctx, shProg);
-   return;
+   _mesa_use_shader_program(ctx, type, shProg);
 }
 
 void GLAPIENTRY
@@ -1741,7 +1775,7 @@ _mesa_ActiveProgramEXT(GLuint program)
       ? _mesa_lookup_shader_program_err(ctx, program, "glActiveProgramEXT")
       : NULL;
 
-   active_program(ctx, shProg, "glActiveProgramEXT");
+   _mesa_active_program(ctx, shProg, "glActiveProgramEXT");
    return;
 }
 
@@ -1842,6 +1876,11 @@ _mesa_init_shader_dispatch(struct _glapi_table *exec)
    SET_UseShaderProgramEXT(exec, _mesa_UseShaderProgramEXT);
    SET_ActiveProgramEXT(exec, _mesa_ActiveProgramEXT);
    SET_CreateShaderProgramEXT(exec, _mesa_CreateShaderProgramEXT);
+
+   /* GL_EXT_gpu_shader4 / GL 3.0 */
+   SET_BindFragDataLocationEXT(exec, _mesa_BindFragDataLocation);
+   SET_GetFragDataLocationEXT(exec, _mesa_GetFragDataLocation);
+
 #endif /* FEATURE_GL */
 }