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/**************************************************************************

 *

 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.

 * All Rights Reserved.

 *

 * 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, sub license, 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 NON-INFRINGEMENT.

 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.

 *

 **************************************************************************/

#ifndef I830CONTEXT_INC

#define I830CONTEXT_INC

#include "intel_context.h"

#define I830_FALLBACK_TEXTURE		 0x1000

#define I830_FALLBACK_COLORMASK		 0x2000

#define I830_FALLBACK_STENCIL		 0x4000

#define I830_FALLBACK_STIPPLE		 0x8000

#define I830_FALLBACK_LOGICOP		 0x20000

#define I830_FALLBACK_DRAW_OFFSET	 0x200000

#define I830_UPLOAD_CTX              0x1

#define I830_UPLOAD_BUFFERS          0x2

#define I830_UPLOAD_STIPPLE          0x4

#define I830_UPLOAD_INVARIENT        0x8

#define I830_UPLOAD_RASTER_RULES     0x10

#define I830_UPLOAD_TEX(i)           (0x10<<(i))

#define I830_UPLOAD_TEXBLEND(i)      (0x100<<(i))

#define I830_UPLOAD_TEX_ALL          (0x0f0)

#define I830_UPLOAD_TEXBLEND_ALL     (0xf00)

/* State structure offsets - these will probably disappear.

 */

#define I830_DESTREG_CBUFADDR0 0

#define I830_DESTREG_CBUFADDR1 1

#define I830_DESTREG_DBUFADDR0 2

#define I830_DESTREG_DBUFADDR1 3

#define I830_DESTREG_DV0 4

#define I830_DESTREG_DV1 5

#define I830_DESTREG_SENABLE 6

#define I830_DESTREG_SR0 7

#define I830_DESTREG_SR1 8

#define I830_DESTREG_SR2 9

#define I830_DESTREG_DRAWRECT0 10

#define I830_DESTREG_DRAWRECT1 11

#define I830_DESTREG_DRAWRECT2 12

#define I830_DESTREG_DRAWRECT3 13

#define I830_DESTREG_DRAWRECT4 14

#define I830_DESTREG_DRAWRECT5 15

#define I830_DEST_SETUP_SIZE 16

#define I830_CTXREG_STATE1		0

#define I830_CTXREG_STATE2		1

#define I830_CTXREG_STATE3		2

#define I830_CTXREG_STATE4		3

#define I830_CTXREG_STATE5		4

#define I830_CTXREG_IALPHAB		5

#define I830_CTXREG_STENCILTST		6

#define I830_CTXREG_ENABLES_1		7

#define I830_CTXREG_ENABLES_2		8

#define I830_CTXREG_AA			9

#define I830_CTXREG_FOGCOLOR		10

#define I830_CTXREG_BLENDCOLOR0		11

#define I830_CTXREG_BLENDCOLOR1		12

#define I830_CTXREG_VF			13

#define I830_CTXREG_VF2			14

#define I830_CTXREG_MCSB0		15

#define I830_CTXREG_MCSB1		16

#define I830_CTX_SETUP_SIZE		17

#define I830_STPREG_ST0        0

#define I830_STPREG_ST1        1

#define I830_STP_SETUP_SIZE    2

#define I830_TEXREG_TM0LI      0        /* load immediate 2 texture map n */

#define I830_TEXREG_TM0S1      1

#define I830_TEXREG_TM0S2      2

#define I830_TEXREG_TM0S3      3

#define I830_TEXREG_TM0S4      4

#define I830_TEXREG_MCS	       5        /* _3DSTATE_MAP_COORD_SETS */

#define I830_TEXREG_CUBE       6        /* _3DSTATE_MAP_SUBE */

#define I830_TEX_SETUP_SIZE    7

#define I830_TEXBLEND_SIZE	12      /* (4 args + op) * 2 + COLOR_FACTOR */

enum {

   I830_RASTER_RULES,

   I830_RASTER_RULES_SIZE

};

struct i830_texture_object

{

   struct intel_texture_object intel;

   GLuint Setup[I830_TEX_SETUP_SIZE];

};

#define I830_TEX_UNITS 4

struct i830_hw_state

{

   GLuint Ctx[I830_CTX_SETUP_SIZE];

   GLuint Buffer[I830_DEST_SETUP_SIZE];

   GLuint Stipple[I830_STP_SETUP_SIZE];

   GLuint RasterRules[I830_RASTER_RULES_SIZE];

   GLuint Tex[I830_TEX_UNITS][I830_TEX_SETUP_SIZE];

   GLuint TexBlend[I830_TEX_UNITS][I830_TEXBLEND_SIZE];

   GLuint TexBlendWordsUsed[I830_TEX_UNITS];

   struct intel_region *draw_region;

   struct intel_region *depth_region;

   /* Regions aren't actually that appropriate here as the memory may

    * be from a PBO or FBO.  Will have to do this for draw and depth for

    * FBO's...

    */

   drm_intel_bo *tex_buffer[I830_TEX_UNITS];

   GLuint tex_offset[I830_TEX_UNITS];

   GLuint emitted;              /* I810_UPLOAD_* */

   GLuint active;

};

struct i830_context

{

   struct intel_context intel;

   GLuint lodbias_tm0s3[MAX_TEXTURE_UNITS];

   GLbitfield64 last_index_bitset;

   struct i830_hw_state state;

};

#define I830_STATECHANGE(i830, flag)				\

do {								\

   INTEL_FIREVERTICES( &i830->intel );				\

   i830->state.emitted &= ~flag;					\

} while (0)

#define I830_ACTIVESTATE(i830, flag, mode)	\

do {						\

   INTEL_FIREVERTICES( &i830->intel );		\

   if (mode)					\

      i830->state.active |= flag;		\

   else						\

      i830->state.active &= ~flag;		\

} while (0)

/* i830_vtbl.c

 */

extern void i830InitVtbl(struct i830_context *i830);

extern void

i830_state_draw_region(struct intel_context *intel,

                       struct i830_hw_state *state,

                       struct intel_region *color_region,

                       struct intel_region *depth_region);

/* i830_context.c

 */

extern bool

i830CreateContext(int api,

                  const struct gl_config * mesaVis,

                  __DRIcontext * driContextPriv,

                  unsigned major_version,

                  unsigned minor_version,

                  unsigned *error,

                  void *sharedContextPrivate);

/* i830_tex.c, i830_texstate.c

 */

extern void i830UpdateTextureState(struct intel_context *intel);

extern void i830InitTextureFuncs(struct dd_function_table *functions);

/* i830_texblend.c

 */

extern GLuint i830SetTexEnvCombine(struct i830_context *i830,

                                   const struct gl_tex_env_combine_state

                                   *combine, GLint blendUnit, GLuint texel_op,

                                   GLuint * state, const GLfloat * factor);

extern void i830EmitTextureBlend(struct i830_context *i830);

/* i830_state.c

 */

extern void i830InitStateFuncs(struct dd_function_table *functions);

extern void i830EmitState(struct i830_context *i830);

extern void i830InitState(struct i830_context *i830);

extern void i830_update_provoking_vertex(struct gl_context *ctx);

/*======================================================================

 * Inline conversion functions.  These are better-typed than the

 * macros used previously:

 */

static INLINE struct i830_context *

i830_context(struct gl_context * ctx)

{

   return (struct i830_context *) ctx;

}

#endif