1/**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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 <keithw@vmware.com>
29 */
30
31#ifndef SP_CONTEXT_H
32#define SP_CONTEXT_H
33
34#include "pipe/p_context.h"
35#include "util/u_blitter.h"
36
37#include "draw/draw_vertex.h"
38
39#include "sp_quad_pipe.h"
40#include "sp_setup.h"
41
42
43/** Do polygon stipple in the draw module? */
44#define DO_PSTIPPLE_IN_DRAW_MODULE 0
45
46/** Do polygon stipple with the util module? */
47#define DO_PSTIPPLE_IN_HELPER_MODULE 1
48
49
50struct softpipe_vbuf_render;
51struct draw_context;
52struct draw_stage;
53struct softpipe_tile_cache;
54struct softpipe_tex_tile_cache;
55struct sp_fragment_shader;
56struct sp_vertex_shader;
57struct sp_velems_state;
58struct sp_so_state;
59
60struct softpipe_context {
61   struct pipe_context pipe;  /**< base class */
62
63   /** Constant state objects */
64   struct pipe_blend_state *blend;
65   struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
66   struct pipe_depth_stencil_alpha_state *depth_stencil;
67   struct pipe_rasterizer_state *rasterizer;
68   struct sp_fragment_shader *fs;
69   struct sp_fragment_shader_variant *fs_variant;
70   struct sp_vertex_shader *vs;
71   struct sp_geometry_shader *gs;
72   struct sp_velems_state *velems;
73   struct sp_so_state *so;
74   struct sp_compute_shader *cs;
75
76   /** Other rendering state */
77   struct pipe_blend_color blend_color;
78   struct pipe_blend_color blend_color_clamped;
79   struct pipe_stencil_ref stencil_ref;
80   struct pipe_clip_state clip;
81   struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
82   struct pipe_framebuffer_state framebuffer;
83   struct pipe_poly_stipple poly_stipple;
84   struct pipe_scissor_state scissors[PIPE_MAX_VIEWPORTS];
85   struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
86
87   struct pipe_image_view images[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_IMAGES];
88   struct pipe_shader_buffer buffers[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_BUFFERS];
89   struct pipe_viewport_state viewports[PIPE_MAX_VIEWPORTS];
90   struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
91   struct pipe_index_buffer index_buffer;
92   struct pipe_resource *mapped_vs_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
93   struct pipe_resource *mapped_gs_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
94
95   struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
96   unsigned num_so_targets;
97
98   struct pipe_query_data_so_statistics so_stats;
99
100   struct pipe_query_data_pipeline_statistics pipeline_statistics;
101   unsigned active_statistics_queries;
102
103   unsigned num_samplers[PIPE_SHADER_TYPES];
104   unsigned num_sampler_views[PIPE_SHADER_TYPES];
105
106   unsigned num_vertex_buffers;
107
108   unsigned dirty; /**< Mask of SP_NEW_x flags */
109
110   /* Counter for occlusion queries.  Note this supports overlapping
111    * queries.
112    */
113   uint64_t occlusion_count;
114   unsigned active_query_count;
115
116   /** Mapped vertex buffers */
117   ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
118
119   /** Mapped constant buffers */
120   const void *mapped_constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
121   unsigned const_buffer_size[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
122
123   /** Vertex format */
124   struct sp_setup_info setup_info;
125   struct vertex_info vertex_info;
126
127   /** Which vertex shader output slot contains point size */
128   int8_t psize_slot;
129
130   /** Which vertex shader output slot contains viewport index */
131   int8_t viewport_index_slot;
132
133   /** Which vertex shader output slot contains layer */
134   int8_t layer_slot;
135
136   /** The reduced version of the primitive supplied by the state tracker */
137   unsigned reduced_api_prim;
138
139   /** Derived information about which winding orders to cull */
140   unsigned cull_mode;
141
142   /**
143    * The reduced primitive after unfilled triangles, wide-line decomposition,
144    * etc, are taken into account.  This is the primitive type that's actually
145    * rasterized.
146    */
147   unsigned reduced_prim;
148
149   /** Derived from scissor and surface bounds: */
150   struct pipe_scissor_state cliprect[PIPE_MAX_VIEWPORTS];
151
152   unsigned line_stipple_counter;
153
154   /** Conditional query object and mode */
155   struct pipe_query *render_cond_query;
156   uint render_cond_mode;
157   boolean render_cond_cond;
158
159   /** Polygon stipple items */
160   struct {
161      struct pipe_resource *texture;
162      struct pipe_sampler_state *sampler;
163      struct pipe_sampler_view *sampler_view;
164   } pstipple;
165
166   /** Software quad rendering pipeline */
167   struct {
168      struct quad_stage *shade;
169      struct quad_stage *depth_test;
170      struct quad_stage *blend;
171      struct quad_stage *pstipple;
172      struct quad_stage *first; /**< points to one of the above stages */
173   } quad;
174
175   /** TGSI exec things */
176   struct {
177      struct sp_tgsi_sampler *sampler[PIPE_SHADER_TYPES];
178      struct sp_tgsi_image *image[PIPE_SHADER_TYPES];
179      struct sp_tgsi_buffer *buffer[PIPE_SHADER_TYPES];
180   } tgsi;
181
182   struct tgsi_exec_machine *fs_machine;
183   /** whether early depth testing is enabled */
184   bool early_depth;
185
186   /** The primitive drawing context */
187   struct draw_context *draw;
188
189   /** Draw module backend */
190   struct vbuf_render *vbuf_backend;
191   struct draw_stage *vbuf;
192
193   struct blitter_context *blitter;
194
195   boolean dirty_render_cache;
196
197   struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
198   struct softpipe_tile_cache *zsbuf_cache;
199
200   unsigned tex_timestamp;
201
202   /*
203    * Texture caches for vertex, fragment, geometry stages.
204    * Don't use PIPE_SHADER_TYPES here to avoid allocating unused memory
205    * for compute shaders.
206    * XXX wouldn't it make more sense for the tile cache to just be part
207    * of sp_sampler_view?
208    */
209   struct softpipe_tex_tile_cache *tex_cache[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
210
211   unsigned dump_fs : 1;
212   unsigned dump_gs : 1;
213   unsigned dump_cs : 1;
214   unsigned no_rast : 1;
215};
216
217
218static inline struct softpipe_context *
219softpipe_context( struct pipe_context *pipe )
220{
221   return (struct softpipe_context *)pipe;
222}
223
224
225struct pipe_context *
226softpipe_create_context(struct pipe_screen *, void *priv, unsigned flags);
227
228struct pipe_resource *
229softpipe_user_buffer_create(struct pipe_screen *screen,
230                            void *ptr,
231                            unsigned bytes,
232			    unsigned bind_flags);
233
234#define SP_UNREFERENCED         0
235#define SP_REFERENCED_FOR_READ  (1 << 0)
236#define SP_REFERENCED_FOR_WRITE (1 << 1)
237
238unsigned int
239softpipe_is_resource_referenced( struct pipe_context *pipe,
240                                 struct pipe_resource *texture,
241                                 unsigned level, int layer);
242
243#endif /* SP_CONTEXT_H */
244