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/**************************************************************************
*
* 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"
#include "p_compiler.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 {
struct pipe_winsys *winsys;
void (*destroy)( struct pipe_context * );
/*
* Queries
*/
const unsigned *(*supported_formats)(struct pipe_context *pipe,
unsigned *numFormats);
void (*max_texture_size)(struct pipe_context *pipe,
unsigned textureType, /* PIPE_TEXTURE_x */
unsigned *maxWidth,
unsigned *maxHeight,
unsigned *maxDepth);
const char *(*get_name)( struct pipe_context *pipe );
const char *(*get_vendor)( struct pipe_context *pipe );
/*
* Drawing
*/
void (*draw_vb)( struct pipe_context *pipe,
struct vertex_buffer *VB );
void (*draw_vertices)( struct pipe_context *pipe,
unsigned mode,
unsigned numVertex, const float *verts,
unsigned numAttribs, const unsigned attribs[]);
/** Clear a surface to given value (no scissor; clear whole surface) */
void (*clear)(struct pipe_context *pipe, struct pipe_surface *ps,
unsigned 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);
unsigned (*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 *,
unsigned unit,
const struct pipe_sampler_state * );
void (*set_texture_state)( struct pipe_context *,
unsigned unit,
struct pipe_mipmap_tree * );
void (*set_viewport_state)( struct pipe_context *,
const struct pipe_viewport_state * );
void (*set_vertex_buffer)( struct pipe_context *,
unsigned index,
struct pipe_vertex_buffer * );
void (*set_vertex_element)( struct pipe_context *,
unsigned index,
struct pipe_vertex_element * );
/*
* Surface functions
* This might go away...
*/
struct pipe_surface *(*surface_alloc)(struct pipe_context *pipe,
unsigned format);
struct pipe_surface *(*get_tex_surface)(struct pipe_context *pipe,
struct pipe_mipmap_tree *texture,
unsigned face, unsigned level,
unsigned zslice);
/*
* Memory region functions
* Some of these may go away...
*/
struct pipe_region *(*region_alloc)(struct pipe_context *pipe,
unsigned cpp, unsigned width, unsigned height,
unsigned flags);
void (*region_release)(struct pipe_context *pipe, struct pipe_region **r);
void (*region_idle)(struct pipe_context *pipe, struct pipe_region *region);
ubyte *(*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,
unsigned dest_offset,
unsigned destx, unsigned desty,
const void *src, unsigned src_stride,
unsigned srcx, unsigned srcy, unsigned width, unsigned height);
void (*region_copy)(struct pipe_context *pipe,
struct pipe_region *dest,
unsigned dest_offset,
unsigned destx, unsigned desty,
struct pipe_region *src, /* don't make this const -
need to map/unmap */
unsigned src_offset,
unsigned srcx, unsigned srcy, unsigned width, unsigned height);
void (*region_fill)(struct pipe_context *pipe,
struct pipe_region *dst,
unsigned dst_offset,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height,
unsigned value);
/*
* Texture functions
*/
boolean (*mipmap_tree_layout)( struct pipe_context *pipe,
struct pipe_mipmap_tree *mt );
/* Flush rendering:
*/
void (*flush)( struct pipe_context *pipe,
unsigned flags );
};
static INLINE void
pipe_region_reference(struct pipe_region **dst, struct pipe_region *src)
{
assert(*dst == NULL);
if (src) {
src->refcount++;
*dst = src;
}
}
static INLINE void
pipe_surface_reference(struct pipe_surface **dst, struct pipe_surface *src)
{
assert(*dst == NULL);
if (src) {
src->refcount++;
*dst = src;
}
}
static INLINE void
pipe_surface_unreference(struct pipe_surface **ps)
{
assert(*ps);
(*ps)->refcount--;
if ((*ps)->refcount <= 0) {
/* XXX need a proper surface->free method */
free(*ps);
}
*ps = NULL;
}
#endif /* PIPE_CONTEXT_H */
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