i965: Start building 965 FS backend.

src/mesa/drivers/dri/Makefile.template

@@ -17,6 +17,7 @@ COMMON_SOURCES = $(COMMON_GALLIUM_SOURCES) \
 INCLUDES = $(SHARED_INCLUDES) $(EXPAT_INCLUDES)
 
 OBJECTS = $(C_SOURCES:.c=.o) \
+	  $(CXX_SOURCES:.cpp=.o) \
 	  $(ASM_SOURCES:.S=.o) 
 
 
@@ -33,12 +34,16 @@ SHARED_INCLUDES = \
 	$(LIBDRM_CFLAGS)
 
 CFLAGS += $(API_DEFINES)
+CXXFLAGS += $(API_DEFINES)
 
 ##### RULES #####
 
 .c.o:
 	$(CC) -c $(INCLUDES) $(CFLAGS) $(DRIVER_DEFINES) $< -o $@
 
+.cpp.o:
+	$(CC) -c $(INCLUDES) $(CXXFLAGS) $(DRIVER_DEFINES) $< -o $@
+
 .S.o:
 	$(CC) -c $(INCLUDES) $(CFLAGS) $(DRIVER_DEFINES) $< -o $@
 

src/mesa/drivers/dri/i965/Makefile

@@ -104,6 +104,9 @@ C_SOURCES = \
 	$(COMMON_SOURCES) \
 	$(DRIVER_SOURCES)
 
+CXX_SOURCES = \
+	brw_fs.cpp
+
 ASM_SOURCES = 
 
 DRIVER_DEFINES = -I../intel

src/mesa/drivers/dri/i965/brw_context.h

@@ -179,6 +179,16 @@ struct brw_fragment_program {
    GLbitfield tex_units_used;
 };
 
+struct brw_shader {
+   struct gl_shader base;
+
+   /** Shader IR transformed for native compile, at link time. */
+   struct exec_list *ir;
+};
+
+struct brw_shader_program {
+   struct gl_shader_program base;
+};
 
 /* Data about a particular attempt to compile a program.  Note that
  * there can be many of these, each in a different GL state

src/mesa/drivers/dri/i965/brw_fs.cpp

@@ -0,0 +1,82 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+extern "C" {
+#include "main/macros.h"
+#include "main/shaderobj.h"
+#include "program/prog_parameter.h"
+#include "program/prog_print.h"
+#include "program/prog_optimize.h"
+#include "brw_context.h"
+#include "brw_eu.h"
+#include "brw_wm.h"
+#include "talloc.h"
+}
+
+struct gl_shader *
+brw_new_shader(GLcontext *ctx, GLuint name, GLuint type)
+{
+   struct brw_shader *shader;
+
+   shader = talloc_zero(NULL, struct brw_shader);
+   shader->base.Type = type;
+   shader->base.Name = name;
+   if (shader) {
+      _mesa_init_shader(ctx, &shader->base);
+   }
+
+   return &shader->base;
+}
+
+struct gl_shader_program *
+brw_new_shader_program(GLcontext *ctx, GLuint name)
+{
+   struct brw_shader_program *prog;
+   prog = talloc_zero(NULL, struct brw_shader_program);
+   if (prog) {
+      _mesa_init_shader_program(ctx, &prog->base);
+   }
+   return &prog->base;
+}
+
+GLboolean
+brw_compile_shader(GLcontext *ctx, struct gl_shader *shader)
+{
+   if (!_mesa_ir_compile_shader(ctx, shader))
+      return GL_FALSE;
+
+   return GL_TRUE;
+}
+
+GLboolean
+brw_link_shader(GLcontext *ctx, struct gl_shader_program *prog)
+{
+   if (!_mesa_ir_link_shader(ctx, prog))
+      return GL_FALSE;
+
+   return GL_TRUE;
+}

src/mesa/drivers/dri/i965/brw_program.c

@@ -231,5 +231,8 @@ void brwInitFragProgFuncs( struct dd_function_table *functions )
    functions->DeleteProgram = brwDeleteProgram;
    functions->IsProgramNative = brwIsProgramNative;
    functions->ProgramStringNotify = brwProgramStringNotify;
+
+   functions->CompileShader = brw_compile_shader;
+   functions->LinkShader = brw_link_shader;
 }
 

src/mesa/drivers/dri/i965/brw_wm.h

@@ -459,4 +459,10 @@ void emit_xpd(struct brw_compile *p,
 	      const struct brw_reg *arg0,
 	      const struct brw_reg *arg1);
 
+GLboolean brw_compile_shader(GLcontext *ctx,
+			     struct gl_shader *shader);
+GLboolean brw_link_shader(GLcontext *ctx, struct gl_shader_program *prog);
+struct gl_shader *brw_new_shader(GLcontext *ctx, GLuint name, GLuint type);
+struct gl_shader_program *brw_new_shader_program(GLcontext *ctx, GLuint name);
+
 #endif

src/mesa/main/shaderobj.c

@@ -87,6 +87,11 @@ _mesa_reference_shader(GLcontext *ctx, struct gl_shader **ptr,
    }
 }
 
+void
+_mesa_init_shader(GLcontext *ctx, struct gl_shader *shader)
+{
+   shader->RefCount = 1;
+}
 
 /**
  * Allocate a new gl_shader object, initialize it.
@@ -99,10 +104,10 @@ _mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type)
    assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER ||
           type == GL_GEOMETRY_SHADER_ARB);
    shader = talloc_zero(NULL, struct gl_shader);
+   shader->Type = type;
+   shader->Name = name;
    if (shader) {
-      shader->Type = type;
-      shader->Name = name;
-      shader->RefCount = 1;
+      _mesa_init_shader(ctx, shader);
    }
    return shader;
 }
@@ -224,6 +229,18 @@ _mesa_reference_shader_program(GLcontext *ctx,
    }
 }
 
+void
+_mesa_init_shader_program(GLcontext *ctx, struct gl_shader_program *prog)
+{
+   prog->Type = GL_SHADER_PROGRAM_MESA;
+   prog->RefCount = 1;
+   prog->Attributes = _mesa_new_parameter_list();
+#if FEATURE_ARB_geometry_shader4
+   prog->Geom.VerticesOut = 0;
+   prog->Geom.InputType = GL_TRIANGLES;
+   prog->Geom.OutputType = GL_TRIANGLE_STRIP;
+#endif
+}
 
 /**
  * Allocate a new gl_shader_program object, initialize it.
@@ -235,15 +252,8 @@ _mesa_new_shader_program(GLcontext *ctx, GLuint name)
    struct gl_shader_program *shProg;
    shProg = talloc_zero(NULL, struct gl_shader_program);
    if (shProg) {
-      shProg->Type = GL_SHADER_PROGRAM_MESA;
       shProg->Name = name;
-      shProg->RefCount = 1;
-      shProg->Attributes = _mesa_new_parameter_list();
-#if FEATURE_ARB_geometry_shader4
-      shProg->Geom.VerticesOut = 0;
-      shProg->Geom.InputType = GL_TRIANGLES;
-      shProg->Geom.OutputType = GL_TRIANGLE_STRIP;
-#endif
+      _mesa_init_shader_program(ctx, shProg);
    }
    return shProg;
 }

src/mesa/main/shaderobj.h

@@ -61,10 +61,15 @@ extern void
 _mesa_reference_shader_program(GLcontext *ctx,
                                struct gl_shader_program **ptr,
                                struct gl_shader_program *shProg);
+extern void
+_mesa_init_shader(GLcontext *ctx, struct gl_shader *shader);
 
 extern struct gl_shader *
 _mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type);
 
+extern void
+_mesa_init_shader_program(GLcontext *ctx, struct gl_shader_program *prog);
+
 extern struct gl_shader_program *
 _mesa_lookup_shader_program(GLcontext *ctx, GLuint name);