/************************************************************************** * * 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 "main/mtypes.h" #include "p_state.h" /* Drawing currently kludged up via the existing tnl/ module. */ struct vertex_buffer; /** * Software pipeline rendering context. Basically a collection of * state setting functions, plus VBO drawing entrypoint. */ struct pipe_context { void (*destroy)( struct pipe_context * ); /* * Queries */ const GLuint *(*supported_formats)(struct pipe_context *pipe, GLuint *numFormats); /* * Drawing */ void (*draw_vb)( struct pipe_context *pipe, struct vertex_buffer *VB ); void (*draw_vertices)( struct pipe_context *pipe, GLuint mode, GLuint numVertex, const GLfloat *verts, GLuint numAttribs, const GLuint attribs[]); /** Clear a surface to given value (no scissor; clear whole surface) */ void (*clear)(struct pipe_context *pipe, struct pipe_surface *ps, GLuint clearValue); /** occlusion counting (XXX this may be temporary - we should probably * have generic query objects with begin/end methods) */ void (*reset_occlusion_counter)(struct pipe_context *pipe); GLuint (*get_occlusion_counter)(struct pipe_context *pipe); /* * State functions */ void (*set_alpha_test_state)( struct pipe_context *, const struct pipe_alpha_test_state * ); void (*set_blend_state)( struct pipe_context *, const struct pipe_blend_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_depth_state)( struct pipe_context *, const struct pipe_depth_state * ); void (*set_framebuffer_state)( struct pipe_context *, const struct pipe_framebuffer_state * ); void (*set_fs_state)( struct pipe_context *, const struct pipe_fs_state * ); void (*set_polygon_stipple)( struct pipe_context *, const struct pipe_poly_stipple * ); void (*set_setup_state)( struct pipe_context *, const struct pipe_setup_state * ); void (*set_scissor_state)( struct pipe_context *, const struct pipe_scissor_state * ); void (*set_stencil_state)( struct pipe_context *, const struct pipe_stencil_state * ); void (*set_sampler_state)( struct pipe_context *, GLuint unit, const struct pipe_sampler_state * ); void (*set_texture_state)( struct pipe_context *, GLuint unit, struct pipe_texture_object * ); void (*set_viewport_state)( struct pipe_context *, const struct pipe_viewport_state * ); /* * Surface functions * This might go away... */ struct pipe_surface *(*surface_alloc)(struct pipe_context *pipe, GLuint format); /* * Memory region functions * Some of these may go away... */ struct pipe_region *(*region_alloc)(struct pipe_context *pipe, GLuint cpp, GLuint pitch, GLuint height); void (*region_release)(struct pipe_context *pipe, struct pipe_region **r); void (*region_idle)(struct pipe_context *pipe, struct pipe_region *region); GLubyte *(*region_map)(struct pipe_context *pipe, struct pipe_region *r); void (*region_unmap)(struct pipe_context *pipe, struct pipe_region *r); void (*region_data)(struct pipe_context *pipe, struct pipe_region *dest, GLuint dest_offset, GLuint destx, GLuint desty, const void *src, GLuint src_stride, GLuint srcx, GLuint srcy, GLuint width, GLuint height); void (*region_copy)(struct pipe_context *pipe, struct pipe_region *dest, GLuint dest_offset, GLuint destx, GLuint desty, struct pipe_region *src, /* don't make this const - need to map/unmap */ GLuint src_offset, GLuint srcx, GLuint srcy, GLuint width, GLuint height); void (*region_fill)(struct pipe_context *pipe, struct pipe_region *dst, GLuint dst_offset, GLuint dstx, GLuint dsty, GLuint width, GLuint height, GLuint value); /* Buffer management functions need to be exposed as well. A pipe * buffer may be used as a texture, render target or vertex/index * buffer, or some combination according to flags. */ struct pipe_buffer_handle *(*create_buffer)(struct pipe_context *pipe, unsigned alignment, unsigned flags ); void *(*buffer_map)( struct pipe_context *pipe, struct pipe_buffer_handle *buf, unsigned flags ); void (*buffer_unmap)( struct pipe_context *pipe, struct pipe_buffer_handle *buf ); struct pipe_buffer_handle *(*buffer_reference)( struct pipe_context *pipe, struct pipe_buffer_handle *buf ); void (*buffer_unreference)( struct pipe_context *pipe, struct pipe_buffer_handle **buf ); void (*buffer_data)(struct pipe_context *pipe, struct pipe_buffer_handle *buf, unsigned size, const void *data ); void (*buffer_subdata)(struct pipe_context *pipe, struct pipe_buffer_handle *buf, unsigned long offset, unsigned long size, const void *data); void (*buffer_get_subdata)(struct pipe_context *pipe, struct pipe_buffer_handle *buf, unsigned long offset, unsigned long size, void *data); /* * Texture functions */ GLboolean (*mipmap_tree_layout)( struct pipe_context *pipe, struct pipe_mipmap_tree *mt ); }; static INLINE void pipe_region_reference(struct pipe_region **dst, struct pipe_region *src) { assert(*dst == NULL); if (src) { src->refcount++; *dst = src; } } #endif /* PIPE_CONTEXT_H */