Vinson Lee
81ac08f89d
Remove p_state.h. Include p_compiler.h for boolean symbol. Add needed forward declarations after removing p_state.h.
400 lines
15 KiB
C
400 lines
15 KiB
C
/**************************************************************************
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*
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef PIPE_CONTEXT_H
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#define PIPE_CONTEXT_H
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#include "p_compiler.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct pipe_blend_color;
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struct pipe_blend_state;
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struct pipe_box;
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struct pipe_clip_state;
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struct pipe_depth_stencil_alpha_state;
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struct pipe_draw_info;
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struct pipe_fence_handle;
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struct pipe_framebuffer_state;
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struct pipe_index_buffer;
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struct pipe_query;
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struct pipe_poly_stipple;
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struct pipe_rasterizer_state;
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struct pipe_resource;
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struct pipe_sampler_state;
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struct pipe_sampler_view;
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struct pipe_scissor_state;
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struct pipe_shader_state;
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struct pipe_stencil_ref;
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struct pipe_stream_output_state;
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struct pipe_subresource;
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struct pipe_surface;
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struct pipe_vertex_buffer;
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struct pipe_vertex_element;
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struct pipe_viewport_state;
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/**
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* Gallium rendering context. Basically:
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* - state setting functions
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* - VBO drawing functions
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* - surface functions
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*/
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struct pipe_context {
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struct pipe_winsys *winsys;
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struct pipe_screen *screen;
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void *priv; /**< context private data (for DRI for example) */
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void *draw; /**< private, for draw module (temporary?) */
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void (*destroy)( struct pipe_context * );
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/**
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* VBO drawing
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*/
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/*@{*/
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void (*draw_vbo)( struct pipe_context *pipe,
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const struct pipe_draw_info *info );
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/**
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* Draw the stream output buffer at index 0
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*/
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void (*draw_stream_output)( struct pipe_context *pipe, unsigned mode );
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/*@}*/
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/**
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* Predicate subsequent rendering on occlusion query result
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* \param query the query predicate, or NULL if no predicate
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* \param mode one of PIPE_RENDER_COND_x
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*/
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void (*render_condition)( struct pipe_context *pipe,
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struct pipe_query *query,
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uint mode );
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/**
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* Query objects
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*/
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/*@{*/
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struct pipe_query *(*create_query)( struct pipe_context *pipe,
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unsigned query_type );
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void (*destroy_query)(struct pipe_context *pipe,
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struct pipe_query *q);
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void (*begin_query)(struct pipe_context *pipe, struct pipe_query *q);
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void (*end_query)(struct pipe_context *pipe, struct pipe_query *q);
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/**
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* Get results of a query.
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* \param wait if true, this query will block until the result is ready
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* \return TRUE if results are ready, FALSE otherwise
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*/
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boolean (*get_query_result)(struct pipe_context *pipe,
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struct pipe_query *q,
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boolean wait,
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void *result);
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/*@}*/
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/**
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* State functions (create/bind/destroy state objects)
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*/
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/*@{*/
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void * (*create_blend_state)(struct pipe_context *,
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const struct pipe_blend_state *);
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void (*bind_blend_state)(struct pipe_context *, void *);
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void (*delete_blend_state)(struct pipe_context *, void *);
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void * (*create_sampler_state)(struct pipe_context *,
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const struct pipe_sampler_state *);
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void (*bind_fragment_sampler_states)(struct pipe_context *,
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unsigned num_samplers,
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void **samplers);
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void (*bind_vertex_sampler_states)(struct pipe_context *,
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unsigned num_samplers,
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void **samplers);
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void (*bind_geometry_sampler_states)(struct pipe_context *,
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unsigned num_samplers,
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void **samplers);
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void (*delete_sampler_state)(struct pipe_context *, void *);
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void * (*create_rasterizer_state)(struct pipe_context *,
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const struct pipe_rasterizer_state *);
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void (*bind_rasterizer_state)(struct pipe_context *, void *);
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void (*delete_rasterizer_state)(struct pipe_context *, void *);
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void * (*create_depth_stencil_alpha_state)(struct pipe_context *,
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const struct pipe_depth_stencil_alpha_state *);
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void (*bind_depth_stencil_alpha_state)(struct pipe_context *, void *);
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void (*delete_depth_stencil_alpha_state)(struct pipe_context *, void *);
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void * (*create_fs_state)(struct pipe_context *,
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const struct pipe_shader_state *);
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void (*bind_fs_state)(struct pipe_context *, void *);
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void (*delete_fs_state)(struct pipe_context *, void *);
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void * (*create_vs_state)(struct pipe_context *,
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const struct pipe_shader_state *);
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void (*bind_vs_state)(struct pipe_context *, void *);
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void (*delete_vs_state)(struct pipe_context *, void *);
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void * (*create_gs_state)(struct pipe_context *,
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const struct pipe_shader_state *);
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void (*bind_gs_state)(struct pipe_context *, void *);
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void (*delete_gs_state)(struct pipe_context *, void *);
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void * (*create_vertex_elements_state)(struct pipe_context *,
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unsigned num_elements,
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const struct pipe_vertex_element *);
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void (*bind_vertex_elements_state)(struct pipe_context *, void *);
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void (*delete_vertex_elements_state)(struct pipe_context *, void *);
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void * (*create_stream_output_state)(struct pipe_context *,
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const struct pipe_stream_output_state *);
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void (*bind_stream_output_state)(struct pipe_context *, void *);
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void (*delete_stream_output_state)(struct pipe_context*, void*);
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/*@}*/
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/**
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* Parameter-like state (or properties)
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*/
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/*@{*/
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void (*set_blend_color)( struct pipe_context *,
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const struct pipe_blend_color * );
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void (*set_stencil_ref)( struct pipe_context *,
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const struct pipe_stencil_ref * );
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void (*set_sample_mask)( struct pipe_context *,
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unsigned sample_mask );
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void (*set_clip_state)( struct pipe_context *,
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const struct pipe_clip_state * );
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void (*set_constant_buffer)( struct pipe_context *,
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uint shader, uint index,
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struct pipe_resource *buf );
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void (*set_framebuffer_state)( struct pipe_context *,
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const struct pipe_framebuffer_state * );
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void (*set_polygon_stipple)( struct pipe_context *,
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const struct pipe_poly_stipple * );
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void (*set_scissor_state)( struct pipe_context *,
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const struct pipe_scissor_state * );
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void (*set_viewport_state)( struct pipe_context *,
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const struct pipe_viewport_state * );
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void (*set_fragment_sampler_views)(struct pipe_context *,
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unsigned num_views,
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struct pipe_sampler_view **);
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void (*set_vertex_sampler_views)(struct pipe_context *,
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unsigned num_views,
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struct pipe_sampler_view **);
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void (*set_geometry_sampler_views)(struct pipe_context *,
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unsigned num_views,
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struct pipe_sampler_view **);
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void (*set_vertex_buffers)( struct pipe_context *,
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unsigned num_buffers,
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const struct pipe_vertex_buffer * );
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void (*set_index_buffer)( struct pipe_context *pipe,
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const struct pipe_index_buffer * );
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void (*set_stream_output_buffers)(struct pipe_context *,
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struct pipe_resource **buffers,
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int *offsets, /*array of offsets
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from the start of each
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of the buffers */
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int num_buffers);
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/*@}*/
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/**
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* Resource functions for blit-like functionality
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*
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* If a driver supports multisampling, resource_resolve must be available.
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*/
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/*@{*/
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/**
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* Copy a block of pixels from one resource to another.
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* The resource must be of the same format.
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* Resources with nr_samples > 1 are not allowed.
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*/
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void (*resource_copy_region)(struct pipe_context *pipe,
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struct pipe_resource *dst,
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struct pipe_subresource subdst,
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unsigned dstx, unsigned dsty, unsigned dstz,
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struct pipe_resource *src,
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struct pipe_subresource subsrc,
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unsigned srcx, unsigned srcy, unsigned srcz,
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unsigned width, unsigned height);
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/**
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* Resolve a multisampled resource into a non-multisampled one.
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* Source and destination must have the same size and same format.
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*/
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void (*resource_resolve)(struct pipe_context *pipe,
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struct pipe_resource *dst,
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struct pipe_subresource subdst,
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struct pipe_resource *src,
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struct pipe_subresource subsrc);
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/*@}*/
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/**
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* Clear the specified set of currently bound buffers to specified values.
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* The entire buffers are cleared (no scissor, no colormask, etc).
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*
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* \param buffers bitfield of PIPE_CLEAR_* values.
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* \param rgba pointer to an array of one float for each of r, g, b, a.
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* \param depth depth clear value in [0,1].
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* \param stencil stencil clear value
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*/
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void (*clear)(struct pipe_context *pipe,
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unsigned buffers,
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const float *rgba,
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double depth,
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unsigned stencil);
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/**
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* Clear a color rendertarget surface.
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* \param rgba pointer to an array of one float for each of r, g, b, a.
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*/
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void (*clear_render_target)(struct pipe_context *pipe,
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struct pipe_surface *dst,
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const float *rgba,
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unsigned dstx, unsigned dsty,
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unsigned width, unsigned height);
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/**
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* Clear a depth-stencil surface.
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* \param clear_flags bitfield of PIPE_CLEAR_DEPTH/STENCIL values.
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* \param depth depth clear value in [0,1].
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* \param stencil stencil clear value
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*/
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void (*clear_depth_stencil)(struct pipe_context *pipe,
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struct pipe_surface *dst,
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unsigned clear_flags,
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double depth,
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unsigned stencil,
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unsigned dstx, unsigned dsty,
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unsigned width, unsigned height);
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/** Flush rendering
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* \param flags bitmask of PIPE_FLUSH_x tokens)
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*/
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void (*flush)( struct pipe_context *pipe,
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unsigned flags,
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struct pipe_fence_handle **fence );
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/**
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* Check whether a texture is referenced by an unflushed hw command.
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* The state-tracker uses this function to avoid unnecessary flushes.
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* It is safe (but wasteful) to always return
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* PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE.
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* \param pipe context whose unflushed hw commands will be checked.
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* \param texture texture to check.
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* \param face cubemap face. Use 0 for non-cubemap texture.
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* \param level mipmap level.
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* \return mask of PIPE_REFERENCED_FOR_READ/WRITE or PIPE_UNREFERENCED
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*/
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unsigned int (*is_resource_referenced)(struct pipe_context *pipe,
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struct pipe_resource *texture,
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unsigned face, unsigned level);
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/**
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* Create a view on a texture to be used by a shader stage.
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*/
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struct pipe_sampler_view * (*create_sampler_view)(struct pipe_context *ctx,
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struct pipe_resource *texture,
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const struct pipe_sampler_view *templat);
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void (*sampler_view_destroy)(struct pipe_context *ctx,
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struct pipe_sampler_view *view);
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/**
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* Get a transfer object for transferring data to/from a texture.
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*
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* Transfers are (by default) context-private and allow uploads to be
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* interleaved with
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*/
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struct pipe_transfer *(*get_transfer)(struct pipe_context *,
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struct pipe_resource *resource,
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struct pipe_subresource,
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unsigned usage, /* a combination of PIPE_TRANSFER_x */
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const struct pipe_box *);
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void (*transfer_destroy)(struct pipe_context *,
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struct pipe_transfer *);
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void *(*transfer_map)( struct pipe_context *,
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struct pipe_transfer *transfer );
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/* If transfer was created with WRITE|FLUSH_EXPLICIT, only the
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* regions specified with this call are guaranteed to be written to
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* the resource.
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*/
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void (*transfer_flush_region)( struct pipe_context *,
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struct pipe_transfer *transfer,
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const struct pipe_box *);
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void (*transfer_unmap)( struct pipe_context *,
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struct pipe_transfer *transfer );
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/* One-shot transfer operation with data supplied in a user
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* pointer. XXX: strides??
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*/
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void (*transfer_inline_write)( struct pipe_context *,
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struct pipe_resource *,
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struct pipe_subresource,
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unsigned usage, /* a combination of PIPE_TRANSFER_x */
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const struct pipe_box *,
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const void *data,
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unsigned stride,
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unsigned slice_stride);
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};
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#ifdef __cplusplus
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}
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#endif
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#endif /* PIPE_CONTEXT_H */
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