diff options
Diffstat (limited to 'src/gallium/drivers/i915simple/i915_context.h')
| -rw-r--r-- | src/gallium/drivers/i915simple/i915_context.h | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915simple/i915_context.h b/src/gallium/drivers/i915simple/i915_context.h new file mode 100644 index 0000000000..3cdabe45f9 --- /dev/null +++ b/src/gallium/drivers/i915simple/i915_context.h @@ -0,0 +1,345 @@ + /************************************************************************** + * + * 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 "draw/draw_vertex.h" + +#include "tgsi/tgsi_scan.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 + + +/** See constant_flags[] below */ +#define I915_CONSTFLAG_USER 0x1f + + +/** + * Subclass of pipe_shader_state + */ +struct i915_fragment_shader +{ + struct pipe_shader_state state; + + struct tgsi_shader_info info; + + uint *program; + uint program_len; + + /** + * constants introduced during translation. + * These are placed at the end of the constant buffer and grow toward + * the beginning (eg: slot 31, 30 29, ...) + * User-provided constants start at 0. + * This allows both types of constants to co-exist (until there's too many) + * and doesn't require regenerating/changing the fragment program to + * shuffle constants around. + */ + uint num_constants; + float constants[I915_MAX_CONSTANT][4]; + + /** + * Status of each constant + * if I915_CONSTFLAG_PARAM, the value must be taken from the corresponding + * slot of the user's constant buffer. (set by pipe->set_constant_buffer()) + * Else, the bitmask indicates which components are occupied by immediates. + */ + ubyte constant_flags[I915_MAX_CONSTANT]; +}; + + +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]; + + /* 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_blend_state { + unsigned iab; + unsigned modes4; + unsigned LIS5; + unsigned LIS6; +}; + +struct i915_depth_stencil_state { + unsigned stencil_modes4; + unsigned bfo[2]; + unsigned stencil_LIS5; + unsigned depth_LIS6; +}; + +struct i915_rasterizer_state { + int light_twoside : 1; + unsigned st; + enum interp_mode color_interp; + + unsigned LIS4; + unsigned LIS7; + unsigned sc[1]; + + const struct pipe_rasterizer_state *templ; + + union { float f; unsigned u; } ds[2]; +}; + +struct i915_sampler_state { + unsigned state[3]; + const struct pipe_sampler_state *templ; + unsigned minlod; + unsigned maxlod; +}; + + +struct i915_texture { + struct pipe_texture base; + + /* Derived from the above: + */ + unsigned stride; + unsigned depth_stride; /* per-image on i945? */ + unsigned total_nblocksy; + + unsigned tiled; + + unsigned nr_images[PIPE_MAX_TEXTURE_LEVELS]; + + /* Explicitly store the offset of each image for each cube face or + * depth value. Pretty much have to accept that hardware formats + * are going to be so diverse that there is no unified way to + * compute the offsets of depth/cube images within a mipmap level, + * so have to store them as a lookup table: + */ + unsigned *image_offset[PIPE_MAX_TEXTURE_LEVELS]; /**< array [depth] of offsets */ + + /* The data is held here: + */ + struct pipe_buffer *buffer; +}; + +struct i915_batchbuffer; + +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 i915_blend_state *blend; + const struct i915_sampler_state *sampler[PIPE_MAX_SAMPLERS]; + const struct i915_depth_stencil_state *depth_stencil; + const struct i915_rasterizer_state *rasterizer; + + struct i915_fragment_shader *fs; + + struct pipe_blend_color blend_color; + struct pipe_clip_state clip; + struct pipe_constant_buffer constants[PIPE_SHADER_TYPES]; + struct pipe_framebuffer_state framebuffer; + struct pipe_poly_stipple poly_stipple; + struct pipe_scissor_state scissor; + struct i915_texture *texture[PIPE_MAX_SAMPLERS]; + struct pipe_viewport_state viewport; + struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS]; + + unsigned dirty; + + unsigned num_samplers; + unsigned num_textures; + unsigned num_vertex_elements; + unsigned num_vertex_buffers; + + struct i915_batchbuffer *batch; + + /** Vertex buffer */ + struct pipe_buffer *vbo; + size_t vbo_offset; + unsigned vbo_flushed; + + struct i915_state current; + unsigned hardware_dirty; + + unsigned debug; +}; + +/* A flag for each state_tracker state object: + */ +#define I915_NEW_VIEWPORT 0x1 +#define I915_NEW_RASTERIZER 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_STENCIL 0x200 +#define I915_NEW_SAMPLER 0x400 +#define I915_NEW_TEXTURE 0x800 +#define I915_NEW_CONSTANTS 0x1000 +#define I915_NEW_VBO 0x2000 +#define I915_NEW_VS 0x4000 + + +/* 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_prim_vbuf.c: + */ +struct draw_stage *i915_draw_vbuf_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_surface.c: + */ +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 |