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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 I915_CONTEXT_H
#define I915_CONTEXT_H
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "pipe/p_state.h"
#include "pipe/draw/draw_vertex.h"
#define I915_TEX_UNITS 8
#define I915_DYNAMIC_MODES4 0
#define I915_DYNAMIC_DEPTHSCALE_0 1 /* just the header */
#define I915_DYNAMIC_DEPTHSCALE_1 2
#define I915_DYNAMIC_IAB 3
#define I915_DYNAMIC_BC_0 4 /* just the header */
#define I915_DYNAMIC_BC_1 5
#define I915_DYNAMIC_BFO_0 6
#define I915_DYNAMIC_BFO_1 7
#define I915_DYNAMIC_STP_0 8
#define I915_DYNAMIC_STP_1 9
#define I915_DYNAMIC_SC_ENA_0 10
#define I915_DYNAMIC_SC_RECT_0 11
#define I915_DYNAMIC_SC_RECT_1 12
#define I915_DYNAMIC_SC_RECT_2 13
#define I915_MAX_DYNAMIC 14
#define I915_IMMEDIATE_S0 0
#define I915_IMMEDIATE_S1 1
#define I915_IMMEDIATE_S2 2
#define I915_IMMEDIATE_S3 3
#define I915_IMMEDIATE_S4 4
#define I915_IMMEDIATE_S5 5
#define I915_IMMEDIATE_S6 6
#define I915_IMMEDIATE_S7 7
#define I915_MAX_IMMEDIATE 8
/* These must mach the order of LI0_STATE_* bits, as they will be used
* to generate hardware packets:
*/
#define I915_CACHE_STATIC 0
#define I915_CACHE_DYNAMIC 1 /* handled specially */
#define I915_CACHE_SAMPLER 2
#define I915_CACHE_MAP 3
#define I915_CACHE_PROGRAM 4
#define I915_CACHE_CONSTANTS 5
#define I915_MAX_CACHE 6
#define I915_MAX_CONSTANT 32
struct i915_cache_context;
/* Use to calculate differences between state emitted to hardware and
* current driver-calculated state.
*/
struct i915_state
{
unsigned immediate[I915_MAX_IMMEDIATE];
unsigned dynamic[I915_MAX_DYNAMIC];
float constants[PIPE_SHADER_TYPES][I915_MAX_CONSTANT][4];
/** number of constants passed in through a constant buffer */
uint num_user_constants[PIPE_SHADER_TYPES];
/** user constants, plus extra constants from shader translation */
uint num_constants[PIPE_SHADER_TYPES];
uint *program;
uint program_len;
/* texture sampler state */
unsigned sampler[I915_TEX_UNITS][3];
unsigned sampler_enable_flags;
unsigned sampler_enable_nr;
/* texture image buffers */
unsigned texbuffer[I915_TEX_UNITS][2];
/** Describes the current hardware vertex layout */
struct vertex_info vertex_info;
unsigned id; /* track lost context events */
};
struct i915_context
{
struct pipe_context pipe;
struct i915_winsys *winsys;
struct draw_context *draw;
/* The most recent drawing state as set by the driver:
*/
const struct pipe_blend_state *blend;
const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
struct pipe_alpha_test_state alpha_test;
struct pipe_blend_color blend_color;
struct pipe_clear_color_state clear_color;
struct pipe_clip_state clip;
struct pipe_constant_buffer constants[PIPE_SHADER_TYPES];
struct pipe_depth_state depth_test;
struct pipe_framebuffer_state framebuffer;
struct pipe_shader_state fs;
struct pipe_poly_stipple poly_stipple;
struct pipe_scissor_state scissor;
struct pipe_setup_state setup;
struct pipe_stencil_state stencil;
struct pipe_mipmap_tree *texture[PIPE_MAX_SAMPLERS];
struct pipe_viewport_state viewport;
struct pipe_vertex_buffer vertex_buffer[PIPE_ATTRIB_MAX];
unsigned dirty;
unsigned *batch_start;
struct i915_state current;
unsigned hardware_dirty;
unsigned debug;
unsigned pci_id;
struct {
unsigned is_i945:1;
} flags;
};
/* A flag for each state_tracker state object:
*/
#define I915_NEW_VIEWPORT 0x1
#define I915_NEW_SETUP 0x2
#define I915_NEW_FS 0x4
#define I915_NEW_BLEND 0x8
#define I915_NEW_CLIP 0x10
#define I915_NEW_SCISSOR 0x20
#define I915_NEW_STIPPLE 0x40
#define I915_NEW_FRAMEBUFFER 0x80
#define I915_NEW_ALPHA_TEST 0x100
#define I915_NEW_DEPTH_TEST 0x200
#define I915_NEW_SAMPLER 0x400
#define I915_NEW_TEXTURE 0x800
#define I915_NEW_STENCIL 0x1000
#define I915_NEW_CONSTANTS 0x2000
/* Driver's internally generated state flags:
*/
#define I915_NEW_VERTEX_FORMAT 0x10000
/* Dirty flags for hardware emit
*/
#define I915_HW_STATIC (1<<I915_CACHE_STATIC)
#define I915_HW_DYNAMIC (1<<I915_CACHE_DYNAMIC)
#define I915_HW_SAMPLER (1<<I915_CACHE_SAMPLER)
#define I915_HW_MAP (1<<I915_CACHE_MAP)
#define I915_HW_PROGRAM (1<<I915_CACHE_PROGRAM)
#define I915_HW_CONSTANTS (1<<I915_CACHE_CONSTANTS)
#define I915_HW_IMMEDIATE (1<<(I915_MAX_CACHE+0))
#define I915_HW_INVARIENT (1<<(I915_MAX_CACHE+1))
/***********************************************************************
* i915_prim_emit.c:
*/
struct draw_stage *i915_draw_render_stage( struct i915_context *i915 );
/***********************************************************************
* i915_state_emit.c:
*/
void i915_emit_hardware_state(struct i915_context *i915 );
/***********************************************************************
* i915_clear.c:
*/
void i915_clear(struct pipe_context *pipe, struct pipe_surface *ps,
unsigned clearValue);
/***********************************************************************
* i915_region.c:
*/
void i915_init_region_functions( struct i915_context *i915 );
void i915_init_surface_functions( struct i915_context *i915 );
void i915_init_state_functions( struct i915_context *i915 );
void i915_init_flush_functions( struct i915_context *i915 );
void i915_init_string_functions( struct i915_context *i915 );
/***********************************************************************
* Inline conversion functions. These are better-typed than the
* macros used previously:
*/
static INLINE struct i915_context *
i915_context( struct pipe_context *pipe )
{
return (struct i915_context *)pipe;
}
#endif
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