Subversion Repositories Kolibri OS

/**************************************************************************

 *

 * 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.

 *

 **************************************************************************/

/* Authors:  Keith Whitwell 

 */

#ifndef SP_CONTEXT_H

#define SP_CONTEXT_H

#include "pipe/p_context.h"

#include "util/u_blitter.h"

#include "draw/draw_vertex.h"

#include "sp_quad_pipe.h"

/** Do polygon stipple in the draw module? */

#define DO_PSTIPPLE_IN_DRAW_MODULE 0

/** Do polygon stipple with the util module? */

#define DO_PSTIPPLE_IN_HELPER_MODULE 1

struct softpipe_vbuf_render;

struct draw_context;

struct draw_stage;

struct softpipe_tile_cache;

struct softpipe_tex_tile_cache;

struct sp_fragment_shader;

struct sp_vertex_shader;

struct sp_velems_state;

struct sp_so_state;

struct softpipe_context {

   struct pipe_context pipe;  /**< base class */

   /** Constant state objects */

   struct pipe_blend_state *blend;

   struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];

   struct pipe_depth_stencil_alpha_state *depth_stencil;

   struct pipe_rasterizer_state *rasterizer;

   struct sp_fragment_shader *fs;

   struct sp_fragment_shader_variant *fs_variant;

   struct sp_vertex_shader *vs;

   struct sp_geometry_shader *gs;

   struct sp_velems_state *velems;

   struct sp_so_state *so;

   /** Other rendering state */

   struct pipe_blend_color blend_color;

   struct pipe_blend_color blend_color_clamped;

   struct pipe_stencil_ref stencil_ref;

   struct pipe_clip_state clip;

   struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];

   struct pipe_framebuffer_state framebuffer;

   struct pipe_poly_stipple poly_stipple;

   struct pipe_scissor_state scissor;

   struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];

   struct pipe_viewport_state viewport;

   struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];

   struct pipe_index_buffer index_buffer;

   struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];

   unsigned num_so_targets;

   struct pipe_query_data_so_statistics so_stats;

   unsigned num_primitives_generated;

   struct pipe_query_data_pipeline_statistics pipeline_statistics;

   unsigned active_statistics_queries;

   unsigned num_samplers[PIPE_SHADER_TYPES];

   unsigned num_sampler_views[PIPE_SHADER_TYPES];

   unsigned num_vertex_buffers;

   unsigned dirty; /**< Mask of SP_NEW_x flags */

   /* Counter for occlusion queries.  Note this supports overlapping

    * queries.

    */

   uint64_t occlusion_count;

   unsigned active_query_count;

   /** Mapped vertex buffers */

   ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];

   /** Mapped constant buffers */

   const void *mapped_constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];

   unsigned const_buffer_size[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];

   /** Vertex format */

   struct vertex_info vertex_info;

   struct vertex_info vertex_info_vbuf;

   /** Which vertex shader output slot contains point size */

   int psize_slot;

   /** The reduced version of the primitive supplied by the state tracker */

   unsigned reduced_api_prim;

   /** Derived information about which winding orders to cull */

   unsigned cull_mode;

   /**

    * The reduced primitive after unfilled triangles, wide-line decomposition,

    * etc, are taken into account.  This is the primitive type that's actually

    * rasterized.

    */

   unsigned reduced_prim;

   /** Derived from scissor and surface bounds: */

   struct pipe_scissor_state cliprect;

   unsigned line_stipple_counter;

   /** Conditional query object and mode */

   struct pipe_query *render_cond_query;

   uint render_cond_mode;

   boolean render_cond_cond;

   /** Polygon stipple items */

   struct {

      struct pipe_resource *texture;

      struct pipe_sampler_state *sampler;

      struct pipe_sampler_view *sampler_view;

   } pstipple;

   /** Software quad rendering pipeline */

   struct {

      struct quad_stage *shade;

      struct quad_stage *depth_test;

      struct quad_stage *blend;

      struct quad_stage *pstipple;

      struct quad_stage *first; /**< points to one of the above stages */

   } quad;

   /** TGSI exec things */

   struct {

      struct sp_tgsi_sampler *sampler[PIPE_SHADER_TYPES];

   } tgsi;

   struct tgsi_exec_machine *fs_machine;

   /** The primitive drawing context */

   struct draw_context *draw;

   /** Draw module backend */

   struct vbuf_render *vbuf_backend;

   struct draw_stage *vbuf;

   struct blitter_context *blitter;

   boolean dirty_render_cache;

   struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];

   struct softpipe_tile_cache *zsbuf_cache;

   unsigned tex_timestamp;

   /*

    * Texture caches for vertex, fragment, geometry stages.

    * Don't use PIPE_SHADER_TYPES here to avoid allocating unused memory

    * for compute shaders.

    * XXX wouldn't it make more sense for the tile cache to just be part

    * of sp_sampler_view?

    */

   struct softpipe_tex_tile_cache *tex_cache[PIPE_SHADER_GEOMETRY+1][PIPE_MAX_SHADER_SAMPLER_VIEWS];

   unsigned dump_fs : 1;

   unsigned dump_gs : 1;

   unsigned no_rast : 1;

};

static INLINE struct softpipe_context *

softpipe_context( struct pipe_context *pipe )

{

   return (struct softpipe_context *)pipe;

}

struct pipe_context *

softpipe_create_context( struct pipe_screen *, void *priv );

struct pipe_resource *

softpipe_user_buffer_create(struct pipe_screen *screen,

                            void *ptr,

                            unsigned bytes,

			    unsigned bind_flags);

#define SP_UNREFERENCED         0

#define SP_REFERENCED_FOR_READ  (1 << 0)

#define SP_REFERENCED_FOR_WRITE (1 << 1)

unsigned int

softpipe_is_resource_referenced( struct pipe_context *pipe,

                                 struct pipe_resource *texture,

                                 unsigned level, int layer);

#endif /* SP_CONTEXT_H */