/************************************************************************** * * Copyright 2007 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 PIPE_CONTEXT_H #define PIPE_CONTEXT_H #include "p_state.h" struct pipe_state_cache; /** * Gallium rendering context. Basically: * - state setting functions * - VBO drawing functions * - surface functions * - device queries */ struct pipe_context { struct pipe_winsys *winsys; void *priv; /** context private data (for DRI for example) */ void (*destroy)( struct pipe_context * ); /* * Queries */ /** type is one of PIPE_SURFACE, PIPE_TEXTURE, etc. */ boolean (*is_format_supported)( struct pipe_context *pipe, enum pipe_format format, uint type ); const char *(*get_name)( struct pipe_context *pipe ); const char *(*get_vendor)( struct pipe_context *pipe ); int (*get_param)( struct pipe_context *pipe, int param ); float (*get_paramf)( struct pipe_context *pipe, int param ); /* * Drawing. * Return false on fallbacks (temporary??) */ boolean (*draw_arrays)( struct pipe_context *pipe, unsigned mode, unsigned start, unsigned count); boolean (*draw_elements)( struct pipe_context *pipe, struct pipe_buffer_handle *indexBuffer, unsigned indexSize, unsigned mode, unsigned start, unsigned count); /** Clear a surface to given value (no scissor; clear whole surface) */ void (*clear)(struct pipe_context *pipe, struct pipe_surface *ps, unsigned clearValue); /** * Query objects */ void (*begin_query)(struct pipe_context *pipe, struct pipe_query_object *q); void (*end_query)(struct pipe_context *pipe, struct pipe_query_object *q); void (*wait_query)(struct pipe_context *pipe, struct pipe_query_object *q); /* * State functions */ void * (*create_alpha_test_state)(struct pipe_context *, const struct pipe_alpha_test_state *); void (*bind_alpha_test_state)(struct pipe_context *, void *); void (*delete_alpha_test_state)(struct pipe_context *, void *); void * (*create_blend_state)(struct pipe_context *, const struct pipe_blend_state *); void (*bind_blend_state)(struct pipe_context *, void *); void (*delete_blend_state)(struct pipe_context *, void *); void * (*create_sampler_state)(struct pipe_context *, const struct pipe_sampler_state *); void (*bind_sampler_state)(struct pipe_context *, unsigned unit, void *); void (*delete_sampler_state)(struct pipe_context *, void *); void * (*create_rasterizer_state)(struct pipe_context *, const struct pipe_rasterizer_state *); void (*bind_rasterizer_state)(struct pipe_context *, void *); void (*delete_rasterizer_state)(struct pipe_context *, void *); void * (*create_depth_stencil_state)(struct pipe_context *, const struct pipe_depth_stencil_state *); void (*bind_depth_stencil_state)(struct pipe_context *, void *); void (*delete_depth_stencil_state)(struct pipe_context *, void *); void * (*create_fs_state)(struct pipe_context *, const struct pipe_shader_state *); void (*bind_fs_state)(struct pipe_context *, void *); void (*delete_fs_state)(struct pipe_context *, void *); void * (*create_vs_state)(struct pipe_context *, const struct pipe_shader_state *); void (*bind_vs_state)(struct pipe_context *, void *); void (*delete_vs_state)(struct pipe_context *, void *); /* The following look more properties than states. * maybe combine a few of them into states or pass them * in the bind calls to the state */ void (*set_blend_color)( struct pipe_context *, const struct pipe_blend_color * ); void (*set_clip_state)( struct pipe_context *, const struct pipe_clip_state * ); void (*set_clear_color_state)( struct pipe_context *, const struct pipe_clear_color_state * ); void (*set_constant_buffer)( struct pipe_context *, uint shader, uint index, const struct pipe_constant_buffer *buf ); void (*set_framebuffer_state)( struct pipe_context *, const struct pipe_framebuffer_state * ); void (*set_polygon_stipple)( struct pipe_context *, const struct pipe_poly_stipple * ); void (*set_sampler_units)( struct pipe_context *, uint num_samplers, const uint *units ); void (*set_scissor_state)( struct pipe_context *, const struct pipe_scissor_state * ); void (*set_texture_state)( struct pipe_context *, unsigned unit, struct pipe_texture * ); void (*set_viewport_state)( struct pipe_context *, const struct pipe_viewport_state * ); /* * Vertex arrays */ void (*set_vertex_buffer)( struct pipe_context *, unsigned index, const struct pipe_vertex_buffer * ); void (*set_vertex_element)( struct pipe_context *, unsigned index, const struct pipe_vertex_element * ); /** Get a surface which is a "view" into a texture */ struct pipe_surface *(*get_tex_surface)(struct pipe_context *pipe, struct pipe_texture *texture, unsigned face, unsigned level, unsigned zslice); /** Get a block of raw pixel data from a surface */ void (*get_tile)(struct pipe_context *pipe, struct pipe_surface *ps, uint x, uint y, uint w, uint h, void *p, int dst_stride); /** Put a block of raw pixel data into a surface */ void (*put_tile)(struct pipe_context *pipe, struct pipe_surface *ps, uint x, uint y, uint w, uint h, const void *p, int src_stride); /* XXX temporary here, move these to softpipe */ void (*get_tile_rgba)(struct pipe_context *pipe, struct pipe_surface *ps, uint x, uint y, uint w, uint h, float *p); void (*put_tile_rgba)(struct pipe_context *pipe, struct pipe_surface *ps, uint x, uint y, uint w, uint h, const float *p); /* * Surface functions */ void (*surface_data)(struct pipe_context *pipe, struct pipe_surface *dest, unsigned destx, unsigned desty, const void *src, unsigned src_stride, unsigned srcx, unsigned srcy, unsigned width, unsigned height); void (*surface_copy)(struct pipe_context *pipe, struct pipe_surface *dest, unsigned destx, unsigned desty, struct pipe_surface *src, /* don't make this const - need to map/unmap */ unsigned srcx, unsigned srcy, unsigned width, unsigned height); void (*surface_fill)(struct pipe_context *pipe, struct pipe_surface *dst, unsigned dstx, unsigned dsty, unsigned width, unsigned height, unsigned value); /* * Texture functions */ void (*texture_create)(struct pipe_context *pipe, struct pipe_texture **pt); void (*texture_release)(struct pipe_context *pipe, struct pipe_texture **pt); /* Flush rendering: */ void (*flush)( struct pipe_context *pipe, unsigned flags ); }; #endif /* PIPE_CONTEXT_H */