1/**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28/* Authors:  Keith Whitwell <keith@tungstengraphics.com>
29 */
30
31#ifndef SP_CONTEXT_H
32#define SP_CONTEXT_H
33
34#include "pipe/p_context.h"
35
36#include "draw/draw_vertex.h"
37
38#include "sp_quad_pipe.h"
39
40
41/** Do polygon stipple in the draw module? */
42#define DO_PSTIPPLE_IN_DRAW_MODULE 0
43
44/** Do polygon stipple with the util module? */
45#define DO_PSTIPPLE_IN_HELPER_MODULE 1
46
47
48struct softpipe_vbuf_render;
49struct draw_context;
50struct draw_stage;
51struct softpipe_tile_cache;
52struct softpipe_tex_tile_cache;
53struct sp_fragment_shader;
54struct sp_vertex_shader;
55struct sp_velems_state;
56struct sp_so_state;
57
58struct softpipe_context {
59   struct pipe_context pipe;  /**< base class */
60
61   /** Constant state objects */
62   struct pipe_blend_state *blend;
63   struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
64   struct pipe_depth_stencil_alpha_state *depth_stencil;
65   struct pipe_rasterizer_state *rasterizer;
66   struct sp_fragment_shader *fs;
67   struct sp_fragment_shader_variant *fs_variant;
68   struct sp_vertex_shader *vs;
69   struct sp_geometry_shader *gs;
70   struct sp_velems_state *velems;
71   struct sp_so_state *so;
72
73   /** Other rendering state */
74   struct pipe_blend_color blend_color;
75   struct pipe_blend_color blend_color_clamped;
76   struct pipe_stencil_ref stencil_ref;
77   struct pipe_clip_state clip;
78   struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
79   struct pipe_framebuffer_state framebuffer;
80   struct pipe_poly_stipple poly_stipple;
81   struct pipe_scissor_state scissor;
82   struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
83
84   struct pipe_viewport_state viewport;
85   struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
86   struct pipe_index_buffer index_buffer;
87
88   struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
89   int num_so_targets;
90
91   struct pipe_query_data_so_statistics so_stats;
92   unsigned num_primitives_generated;
93
94   unsigned num_samplers[PIPE_SHADER_TYPES];
95   unsigned num_sampler_views[PIPE_SHADER_TYPES];
96
97   unsigned num_vertex_buffers;
98
99   unsigned dirty; /**< Mask of SP_NEW_x flags */
100
101   /* Counter for occlusion queries.  Note this supports overlapping
102    * queries.
103    */
104   uint64_t occlusion_count;
105   unsigned active_query_count;
106
107   /** Mapped vertex buffers */
108   ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
109
110   /** Mapped constant buffers */
111   const void *mapped_constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
112   unsigned const_buffer_size[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
113
114   /** Vertex format */
115   struct vertex_info vertex_info;
116   struct vertex_info vertex_info_vbuf;
117
118   /** Which vertex shader output slot contains point size */
119   int psize_slot;
120
121   /** The reduced version of the primitive supplied by the state tracker */
122   unsigned reduced_api_prim;
123
124   /** Derived information about which winding orders to cull */
125   unsigned cull_mode;
126
127   /**
128    * The reduced primitive after unfilled triangles, wide-line decomposition,
129    * etc, are taken into account.  This is the primitive type that's actually
130    * rasterized.
131    */
132   unsigned reduced_prim;
133
134   /** Derived from scissor and surface bounds: */
135   struct pipe_scissor_state cliprect;
136
137   unsigned line_stipple_counter;
138
139   /** Conditional query object and mode */
140   struct pipe_query *render_cond_query;
141   uint render_cond_mode;
142
143   /** Polygon stipple items */
144   struct {
145      struct pipe_resource *texture;
146      struct pipe_sampler_state *sampler;
147      struct pipe_sampler_view *sampler_view;
148   } pstipple;
149
150   /** Software quad rendering pipeline */
151   struct {
152      struct quad_stage *shade;
153      struct quad_stage *depth_test;
154      struct quad_stage *blend;
155      struct quad_stage *pstipple;
156      struct quad_stage *first; /**< points to one of the above stages */
157   } quad;
158
159   /** TGSI exec things */
160   struct {
161      struct sp_sampler_variant *samplers_list[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
162   } tgsi;
163
164   struct tgsi_exec_machine *fs_machine;
165
166   /** The primitive drawing context */
167   struct draw_context *draw;
168
169   /** Draw module backend */
170   struct vbuf_render *vbuf_backend;
171   struct draw_stage *vbuf;
172
173   boolean dirty_render_cache;
174
175   struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
176   struct softpipe_tile_cache *zsbuf_cache;
177
178   unsigned tex_timestamp;
179
180   /*
181    * Texture caches for vertex, fragment, geometry stages.
182    * Don't use PIPE_SHADER_TYPES here to avoid allocating unused memory
183    * for compute shaders.
184    */
185   struct softpipe_tex_tile_cache *tex_cache[PIPE_SHADER_GEOMETRY+1][PIPE_MAX_SAMPLERS];
186
187   unsigned dump_fs : 1;
188   unsigned dump_gs : 1;
189   unsigned no_rast : 1;
190};
191
192
193static INLINE struct softpipe_context *
194softpipe_context( struct pipe_context *pipe )
195{
196   return (struct softpipe_context *)pipe;
197}
198
199void
200softpipe_reset_sampler_variants(struct softpipe_context *softpipe);
201
202struct pipe_context *
203softpipe_create_context( struct pipe_screen *, void *priv );
204
205struct pipe_resource *
206softpipe_user_buffer_create(struct pipe_screen *screen,
207                            void *ptr,
208                            unsigned bytes,
209			    unsigned bind_flags);
210
211#define SP_UNREFERENCED         0
212#define SP_REFERENCED_FOR_READ  (1 << 0)
213#define SP_REFERENCED_FOR_WRITE (1 << 1)
214
215unsigned int
216softpipe_is_resource_referenced( struct pipe_context *pipe,
217                                 struct pipe_resource *texture,
218                                 unsigned level, int layer);
219
220#endif /* SP_CONTEXT_H */
221