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

1 files changed, 330 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i915/i915_context.h b/src/mesa/drivers/dri/i915/i915_context.h
new file mode 100644
index 0000000000..05863fa9e9
--- /dev/null
+++ b/src/mesa/drivers/dri/i915/i915_context.h
@@ -0,0 +1,330 @@
+ /**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ **************************************************************************/
+
+#ifndef I915CONTEXT_INC
+#define I915CONTEXT_INC
+
+#include "intel_context.h"
+
+#define I915_FALLBACK_TEXTURE		 0x1000
+#define I915_FALLBACK_COLORMASK		 0x2000
+#define I915_FALLBACK_STENCIL		 0x4000
+#define I915_FALLBACK_STIPPLE		 0x8000
+#define I915_FALLBACK_PROGRAM		 0x10000
+#define I915_FALLBACK_LOGICOP		 0x20000
+
+#define I915_UPLOAD_CTX              0x1
+#define I915_UPLOAD_BUFFERS          0x2
+#define I915_UPLOAD_STIPPLE          0x4
+#define I915_UPLOAD_PROGRAM          0x8
+#define I915_UPLOAD_CONSTANTS        0x10
+#define I915_UPLOAD_FOG              0x20
+#define I915_UPLOAD_TEX(i)           (0x00010000<<(i))
+#define I915_UPLOAD_TEX_ALL          (0x00ff0000)
+#define I915_UPLOAD_TEX_0_SHIFT      16
+
+
+/* State structure offsets - these will probably disappear.
+ */
+#define I915_DESTREG_CBUFADDR0 0
+#define I915_DESTREG_CBUFADDR1 1
+#define I915_DESTREG_CBUFADDR2 2
+#define I915_DESTREG_DBUFADDR0 3
+#define I915_DESTREG_DBUFADDR1 4
+#define I915_DESTREG_DBUFADDR2 5
+#define I915_DESTREG_DV0 6
+#define I915_DESTREG_DV1 7
+#define I915_DESTREG_SENABLE 8
+#define I915_DESTREG_SR0 9
+#define I915_DESTREG_SR1 10
+#define I915_DESTREG_SR2 11
+#define I915_DEST_SETUP_SIZE 12
+
+#define I915_CTXREG_STATE4		0
+#define I915_CTXREG_LI	        	1
+#define I915_CTXREG_LIS2		        2
+#define I915_CTXREG_LIS4	        	3
+#define I915_CTXREG_LIS5	        	4
+#define I915_CTXREG_LIS6	         	5
+#define I915_CTXREG_IAB   	 	6
+#define I915_CTXREG_BLENDCOLOR0		7
+#define I915_CTXREG_BLENDCOLOR1		8
+#define I915_CTX_SETUP_SIZE		9
+
+#define I915_FOGREG_COLOR		0
+#define I915_FOGREG_MODE0		1
+#define I915_FOGREG_MODE1		2
+#define I915_FOGREG_MODE2		3
+#define I915_FOGREG_MODE3		4
+#define I915_FOG_SETUP_SIZE		5
+
+#define I915_STPREG_ST0        0
+#define I915_STPREG_ST1        1
+#define I915_STP_SETUP_SIZE    2
+
+#define I915_TEXREG_MS2        0
+#define I915_TEXREG_MS3        1
+#define I915_TEXREG_MS4        2
+#define I915_TEXREG_SS2        3
+#define I915_TEXREG_SS3        4
+#define I915_TEXREG_SS4        5
+#define I915_TEX_SETUP_SIZE    6
+
+#define I915_MAX_CONSTANT      32
+#define I915_CONSTANT_SIZE     (2+(4*I915_MAX_CONSTANT))
+
+
+#define I915_PROGRAM_SIZE      192
+
+
+/* Hardware version of a parsed fragment program.  "Derived" from the
+ * mesa fragment_program struct.
+ */
+struct i915_fragment_program {
+   struct fragment_program FragProg;
+
+   GLboolean translated;
+   GLboolean params_uptodate;
+   GLboolean on_hardware;
+   GLboolean error;		/* If program is malformed for any reason. */
+
+   GLuint nr_tex_indirect;
+   GLuint nr_tex_insn;
+   GLuint nr_alu_insn;
+   GLuint nr_decl_insn;
+
+
+
+
+   /* TODO: split between the stored representation of a program and
+    * the state used to build that representation.
+    */
+   GLcontext *ctx;
+
+   GLuint declarations[I915_PROGRAM_SIZE];
+   GLuint program[I915_PROGRAM_SIZE];
+
+   GLfloat constant[I915_MAX_CONSTANT][4];
+   GLuint constant_flags[I915_MAX_CONSTANT];
+   GLuint nr_constants;
+
+   GLuint *csr;			/* Cursor, points into program.
+				 */
+
+   GLuint *decl;		/* Cursor, points into declarations.
+				 */
+   
+   GLuint decl_s;		/* flags for which s regs need to be decl'd */
+   GLuint decl_t;		/* flags for which t regs need to be decl'd */
+
+   GLuint temp_flag;		/* Tracks temporary regs which are in
+				 * use.
+				 */
+
+   GLuint utemp_flag;		/* Tracks TYPE_U temporary regs which are in
+				 * use.
+				 */
+
+
+
+   /* Helpers for i915_fragprog.c:
+    */
+   GLuint wpos_tex;
+   GLboolean depth_written;
+
+   struct { 
+      GLuint reg;		/* Hardware constant idx */
+      const GLfloat *values; 	/* Pointer to tracked values */
+   } param[I915_MAX_CONSTANT];
+   GLuint nr_params;
+      
+
+
+
+   /* Helpers for i915_texprog.c:
+    */
+   GLuint src_texture;		/* Reg containing sampled texture color,
+				 * else UREG_BAD.
+				 */
+
+   GLuint src_previous;		/* Reg containing color from previous 
+				 * stage.  May need to be decl'd.
+				 */
+
+   GLuint last_tex_stage;	/* Number of last enabled texture unit */
+
+   struct vertex_buffer *VB;
+};
+
+
+
+
+
+
+struct i915_texture_object
+{
+   struct intel_texture_object intel;
+   GLenum lastTarget;
+   GLboolean refs_border_color;
+   GLuint Setup[I915_TEX_SETUP_SIZE];
+};
+
+#define I915_TEX_UNITS 8
+
+
+struct i915_hw_state {
+   GLuint Ctx[I915_CTX_SETUP_SIZE];
+   GLuint Buffer[I915_DEST_SETUP_SIZE];
+   GLuint Stipple[I915_STP_SETUP_SIZE];
+   GLuint Fog[I915_FOG_SETUP_SIZE];
+   GLuint Tex[I915_TEX_UNITS][I915_TEX_SETUP_SIZE];
+   GLuint Constant[I915_CONSTANT_SIZE];
+   GLuint ConstantSize;
+   GLuint Program[I915_PROGRAM_SIZE];
+   GLuint ProgramSize;
+   GLuint active;		/* I915_UPLOAD_* */
+   GLuint emitted;		/* I915_UPLOAD_* */
+};
+
+#define I915_FOG_PIXEL  2
+#define I915_FOG_VERTEX 1
+#define I915_FOG_NONE   0
+
+struct i915_context 
+{
+   struct intel_context intel;
+
+   GLuint last_ReallyEnabled;
+   GLuint vertex_fog;
+
+   struct i915_fragment_program tex_program;
+   struct i915_fragment_program *current_program;
+
+   struct i915_hw_state meta, initial, state, *current;
+};
+
+
+typedef struct i915_context *i915ContextPtr;
+typedef struct i915_texture_object *i915TextureObjectPtr;
+
+#define I915_CONTEXT(ctx)	((i915ContextPtr)(ctx))
+
+
+
+#define I915_STATECHANGE(i915, flag)					\
+do {									\
+   if (0) fprintf(stderr, "I915_STATECHANGE %x in %s\n", flag, __FUNCTION__);	\
+   INTEL_FIREVERTICES( &(i915)->intel );					\
+   (i915)->state.emitted &= ~(flag);					\
+} while (0)
+
+#define I915_ACTIVESTATE(i915, flag, mode)			\
+do {								\
+   if (0) fprintf(stderr, "I915_ACTIVESTATE %x %d in %s\n",	\
+		  flag, mode, __FUNCTION__);			\
+   INTEL_FIREVERTICES( &(i915)->intel );				\
+   if (mode)							\
+      (i915)->state.active |= (flag);				\
+   else								\
+      (i915)->state.active &= ~(flag);				\
+} while (0)
+
+
+/*======================================================================
+ * i915_vtbl.c
+ */
+extern void i915InitVtbl( i915ContextPtr i915 );
+
+
+
+#define SZ_TO_HW(sz)  ((sz-2)&0x3)
+#define EMIT_SZ(sz)   (EMIT_1F + (sz) - 1)
+#define EMIT_ATTR( ATTR, STYLE, S4, SZ )				\
+do {									\
+   intel->vertex_attrs[intel->vertex_attr_count].attrib = (ATTR);	\
+   intel->vertex_attrs[intel->vertex_attr_count].format = (STYLE);	\
+   s4 |= S4;								\
+   intel->vertex_attr_count++;						\
+   offset += (SZ);							\
+} while (0)
+
+#define EMIT_PAD( N )							\
+do {									\
+   intel->vertex_attrs[intel->vertex_attr_count].attrib = 0;		\
+   intel->vertex_attrs[intel->vertex_attr_count].format = EMIT_PAD;	\
+   intel->vertex_attrs[intel->vertex_attr_count].offset = (N);		\
+   intel->vertex_attr_count++;						\
+   offset += (N);							\
+} while (0)
+
+
+
+/*======================================================================
+ * i915_context.c
+ */
+extern GLboolean i915CreateContext( const __GLcontextModes *mesaVis,
+				    __DRIcontextPrivate *driContextPriv,
+				    void *sharedContextPrivate);
+
+
+/*======================================================================
+ * i915_texprog.c
+ */
+extern void i915ValidateTextureProgram( i915ContextPtr i915 );
+
+
+/*======================================================================
+ * i915_debug.c
+ */
+extern void i915_disassemble_program( const GLuint *program, GLuint sz );
+extern void i915_print_ureg( const char *msg, GLuint ureg );
+
+
+/*======================================================================
+ * i915_state.c
+ */
+extern void i915InitStateFunctions( struct dd_function_table *functions );
+extern void i915InitState( i915ContextPtr i915 );
+
+
+/*======================================================================
+ * i915_tex.c
+ */
+extern void i915UpdateTextureState( intelContextPtr intel );
+extern void i915InitTextureFuncs( struct dd_function_table *functions );
+extern intelTextureObjectPtr i915AllocTexObj( struct gl_texture_object *texObj );
+
+/*======================================================================
+ * i915_metaops.c
+ */
+extern GLboolean
+i915TryTextureReadPixels( GLcontext *ctx,
+			  GLint x, GLint y, GLsizei width, GLsizei height,
+			  GLenum format, GLenum type,
+			  const struct gl_pixelstore_attrib *pack,
+			  GLvoid *pixels );
+
+extern GLboolean
+i915TryTextureDrawPixels( GLcontext *ctx,
+			  GLint x, GLint y, GLsizei width, GLsizei height,
+			  GLenum format, GLenum type,
+			  const struct gl_pixelstore_attrib *unpack,
+			  const GLvoid *pixels );
+
+extern void 
+i915ClearWithTris( intelContextPtr intel, GLbitfield mask,
+		   GLboolean all, GLint cx, GLint cy, GLint cw, GLint ch);
+
+
+/*======================================================================
+ * i915_fragprog.c
+ */
+extern void i915ValidateFragmentProgram( i915ContextPtr i915 );
+extern void i915InitFragProgFuncs( struct dd_function_table *functions );
+	
+#endif
+