New driver for i915 as well as older i830/i845/i865 chipsets.

1 files changed, 143 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i915/i915_program.h b/src/mesa/drivers/dri/i915/i915_program.h
new file mode 100644
index 0000000000..7ed2e84fe4
--- /dev/null
+++ b/src/mesa/drivers/dri/i915/i915_program.h
@@ -0,0 +1,143 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ **************************************************************************/
+
+
+#ifndef I915_PROGRAM_H
+#define I915_PROGRAM_H
+
+#include "i915_context.h"
+#include "i915_reg.h"
+
+
+
+/* Having zero and one in here makes the definition of swizzle a lot
+ * easier.
+ */
+#define UREG_TYPE_SHIFT               29
+#define UREG_NR_SHIFT                 24
+#define UREG_CHANNEL_X_NEGATE_SHIFT   23
+#define UREG_CHANNEL_X_SHIFT          20
+#define UREG_CHANNEL_Y_NEGATE_SHIFT   19
+#define UREG_CHANNEL_Y_SHIFT          16
+#define UREG_CHANNEL_Z_NEGATE_SHIFT   15
+#define UREG_CHANNEL_Z_SHIFT          12
+#define UREG_CHANNEL_W_NEGATE_SHIFT   11
+#define UREG_CHANNEL_W_SHIFT          8
+#define UREG_CHANNEL_ZERO_NEGATE_MBZ  5
+#define UREG_CHANNEL_ZERO_SHIFT       4      
+#define UREG_CHANNEL_ONE_NEGATE_MBZ   1
+#define UREG_CHANNEL_ONE_SHIFT        0      
+
+#define UREG_BAD          0xffffffff /* not a valid ureg */
+
+#define X    SRC_X
+#define Y    SRC_Y
+#define Z    SRC_Z
+#define W    SRC_W
+#define ZERO SRC_ZERO
+#define ONE  SRC_ONE
+
+/* Construct a ureg:
+ */
+#define UREG( type, nr ) (((type)<< UREG_TYPE_SHIFT) |		\
+			  ((nr)  << UREG_NR_SHIFT) |		\
+			  (X     << UREG_CHANNEL_X_SHIFT) |	\
+			  (Y     << UREG_CHANNEL_Y_SHIFT) |	\
+			  (Z     << UREG_CHANNEL_Z_SHIFT) |	\
+			  (W     << UREG_CHANNEL_W_SHIFT) |	\
+			  (ZERO  << UREG_CHANNEL_ZERO_SHIFT) |	\
+			  (ONE   << UREG_CHANNEL_ONE_SHIFT))
+
+#define GET_CHANNEL_SRC( reg, channel ) ((reg<<(channel*4)) & (0xf<<20))
+#define CHANNEL_SRC( src, channel ) (src>>(channel*4))
+
+#define GET_UREG_TYPE(reg) (((reg)>>UREG_TYPE_SHIFT)&REG_TYPE_MASK)
+#define GET_UREG_NR(reg)   (((reg)>>UREG_NR_SHIFT)&REG_NR_MASK)
+
+
+
+#define UREG_XYZW_CHANNEL_MASK 0x00ffff00
+
+/* One neat thing about the UREG representation:  
+ */
+static __inline int swizzle( int reg, int x, int y, int z, int w )
+{
+   return ((reg & ~UREG_XYZW_CHANNEL_MASK) |
+	   CHANNEL_SRC( GET_CHANNEL_SRC( reg, x ), 0 ) |
+	   CHANNEL_SRC( GET_CHANNEL_SRC( reg, y ), 1 ) |
+	   CHANNEL_SRC( GET_CHANNEL_SRC( reg, z ), 2 ) |
+	   CHANNEL_SRC( GET_CHANNEL_SRC( reg, w ), 3 ));
+}
+
+/* Another neat thing about the UREG representation:  
+ */
+static __inline int negate( int reg, int x, int y, int z, int w )
+{
+   return reg ^ (((x&1)<<UREG_CHANNEL_X_NEGATE_SHIFT)|
+		 ((y&1)<<UREG_CHANNEL_Y_NEGATE_SHIFT)|
+		 ((z&1)<<UREG_CHANNEL_Z_NEGATE_SHIFT)|
+		 ((w&1)<<UREG_CHANNEL_W_NEGATE_SHIFT));
+}
+
+
+extern GLuint i915_get_temp( struct i915_fragment_program *p );
+extern GLuint i915_get_utemp( struct i915_fragment_program *p );
+extern void i915_release_utemps( struct i915_fragment_program *p );
+
+
+extern GLuint i915_emit_texld( struct i915_fragment_program *p,
+			      GLuint dest,
+			      GLuint destmask,
+			      GLuint sampler,
+			      GLuint coord,
+			      GLuint op );
+
+extern GLuint i915_emit_arith( struct i915_fragment_program *p,
+			      GLuint op,
+			      GLuint dest,
+			      GLuint mask,
+			      GLuint saturate,
+			      GLuint src0,
+			      GLuint src1,
+			      GLuint src2 );
+
+extern GLuint i915_emit_decl( struct i915_fragment_program *p,
+			     GLuint type, GLuint nr, GLuint d0_flags );
+
+
+extern GLuint i915_emit_const1f( struct i915_fragment_program *p, 
+				GLfloat c0 );
+
+extern GLuint i915_emit_const2f( struct i915_fragment_program *p, 
+				GLfloat c0, GLfloat c1 );
+
+extern GLuint i915_emit_const4fv( struct i915_fragment_program *p,
+				 const GLfloat *c );
+
+extern GLuint i915_emit_const4f( struct i915_fragment_program *p, 
+				GLfloat c0, GLfloat c1, 
+				GLfloat c2, GLfloat c3 );
+
+
+extern GLuint i915_emit_param4fv( struct i915_fragment_program *p, 
+				 const GLfloat *values );
+
+extern void i915_program_error( struct i915_fragment_program *p,
+			       const GLubyte *msg );
+
+extern void i915_init_program( i915ContextPtr i915,
+			      struct i915_fragment_program *p );
+
+extern void i915_upload_program( i915ContextPtr i915, 
+				struct i915_fragment_program *p );
+
+extern void i915_fini_program( struct i915_fragment_program *p );
+
+
+
+
+#endif