eb168e26aa
Only allows clearing currently bound buffers, but colour and depth/stencil in a single call.
235 lines
8.0 KiB
C
235 lines
8.0 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_state.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct pipe_screen;
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struct pipe_fence_handle;
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struct pipe_state_cache;
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struct pipe_query;
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struct pipe_winsys;
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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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/* Possible interface for setting edgeflags. These aren't really
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* vertex elements, so don't fit there.
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*/
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void (*set_edgeflags)( struct pipe_context *,
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const unsigned *bitfield );
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/**
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* VBO drawing (return false on fallbacks (temporary??))
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*/
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/*@{*/
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boolean (*draw_arrays)( struct pipe_context *pipe,
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unsigned mode, unsigned start, unsigned count);
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boolean (*draw_elements)( struct pipe_context *pipe,
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struct pipe_buffer *indexBuffer,
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unsigned indexSize,
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unsigned mode, unsigned start, unsigned count);
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/* XXX: this is (probably) a temporary entrypoint, as the range
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* information should be available from the vertex_buffer state.
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* Using this to quickly evaluate a specialized path in the draw
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* module.
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*/
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boolean (*draw_range_elements)( struct pipe_context *pipe,
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struct pipe_buffer *indexBuffer,
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unsigned indexSize,
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unsigned minIndex,
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unsigned maxIndex,
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unsigned mode,
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unsigned start,
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unsigned count);
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/*@}*/
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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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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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uint64_t *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_sampler_states)(struct pipe_context *, unsigned num, void **);
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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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/*@}*/
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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_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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const struct pipe_constant_buffer *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_sampler_textures)( struct pipe_context *,
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unsigned num_textures,
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struct pipe_texture ** );
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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_vertex_elements)( struct pipe_context *,
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unsigned num_elements,
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const struct pipe_vertex_element * );
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/*@}*/
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/**
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* Surface functions
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*/
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/*@{*/
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void (*surface_copy)(struct pipe_context *pipe,
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struct pipe_surface *dest,
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unsigned destx, unsigned desty,
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struct pipe_surface *src, /* don't make this const -
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need to map/unmap */
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unsigned srcx, unsigned srcy,
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unsigned width, unsigned height);
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void (*surface_fill)(struct pipe_context *pipe,
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struct pipe_surface *dst,
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unsigned dstx, unsigned dsty,
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unsigned width, unsigned height,
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unsigned value);
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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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*
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* buffers is a bitfield of PIPE_CLEAR_* values.
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*
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* rgba is a pointer to an array of one float for each of r, g, b, a.
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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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/** Flush rendering (flags = bitmask of PIPE_FLUSH_x tokens) */
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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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#ifdef __cplusplus
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}
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#endif
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#endif /* PIPE_CONTEXT_H */
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