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_resource *mapped_vs_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
92   struct pipe_resource *mapped_gs_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
93
94   struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
95   unsigned num_so_targets;
96
97   struct pipe_query_data_so_statistics so_stats[PIPE_MAX_VERTEX_STREAMS];
98
99   struct pipe_query_data_pipeline_statistics pipeline_statistics;
100   unsigned active_statistics_queries;
101
102   unsigned num_samplers[PIPE_SHADER_TYPES];
103   unsigned num_sampler_views[PIPE_SHADER_TYPES];
104
105   unsigned num_vertex_buffers;
106
107   unsigned dirty; /**< Mask of SP_NEW_x flags */
108
109   /* Counter for occlusion queries.  Note this supports overlapping
110    * queries.
111    */
112   uint64_t occlusion_count;
113   unsigned active_query_count;
114
115   /** Mapped vertex buffers */
116   ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
117
118   /** Mapped constant buffers */
119   const void *mapped_constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
120   unsigned const_buffer_size[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
121
122   /** Vertex format */
123   struct sp_setup_info setup_info;
124   struct vertex_info vertex_info;
125
126   /** Which vertex shader output slot contains point size */
127   int8_t psize_slot;
128
129   /** Which vertex shader output slot contains viewport index */
130   int8_t viewport_index_slot;
131
132   /** Which vertex shader output slot contains layer */
133   int8_t layer_slot;
134
135   /** The reduced version of the primitive supplied by the state tracker */
136   unsigned reduced_api_prim;
137
138   /** Derived information about which winding orders to cull */
139   unsigned cull_mode;
140
141   /**
142    * The reduced primitive after unfilled triangles, wide-line decomposition,
143    * etc, are taken into account.  This is the primitive type that's actually
144    * rasterized.
145    */
146   unsigned reduced_prim;
147
148   /** Derived from scissor and surface bounds: */
149   struct pipe_scissor_state cliprect[PIPE_MAX_VIEWPORTS];
150
151   /** Conditional query object and mode */
152   struct pipe_query *render_cond_query;
153   enum pipe_render_cond_flag render_cond_mode;
154   boolean render_cond_cond;
155
156   /** Polygon stipple items */
157   struct {
158      struct pipe_resource *texture;
159      struct pipe_sampler_state *sampler;
160      struct pipe_sampler_view *sampler_view;
161   } pstipple;
162
163   /** Software quad rendering pipeline */
164   struct {
165      struct quad_stage *shade;
166      struct quad_stage *depth_test;
167      struct quad_stage *blend;
168      struct quad_stage *pstipple;
169      struct quad_stage *first; /**< points to one of the above stages */
170   } quad;
171
172   /** TGSI exec things */
173   struct {
174      struct sp_tgsi_sampler *sampler[PIPE_SHADER_TYPES];
175      struct sp_tgsi_image *image[PIPE_SHADER_TYPES];
176      struct sp_tgsi_buffer *buffer[PIPE_SHADER_TYPES];
177   } tgsi;
178
179   struct tgsi_exec_machine *fs_machine;
180   /** whether early depth testing is enabled */
181   bool early_depth;
182
183   /** The primitive drawing context */
184   struct draw_context *draw;
185
186   /** Draw module backend */
187   struct vbuf_render *vbuf_backend;
188   struct draw_stage *vbuf;
189
190   struct blitter_context *blitter;
191
192   boolean dirty_render_cache;
193
194   struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
195   struct softpipe_tile_cache *zsbuf_cache;
196
197   unsigned tex_timestamp;
198
199   /*
200    * Texture caches for vertex, fragment, geometry stages.
201    * Don't use PIPE_SHADER_TYPES here to avoid allocating unused memory
202    * for compute shaders.
203    * XXX wouldn't it make more sense for the tile cache to just be part
204    * of sp_sampler_view?
205    */
206   struct softpipe_tex_tile_cache *tex_cache[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
207
208   unsigned dump_fs : 1;
209   unsigned dump_gs : 1;
210   unsigned dump_cs : 1;
211   unsigned no_rast : 1;
212};
213
214
215static inline struct softpipe_context *
216softpipe_context( struct pipe_context *pipe )
217{
218   return (struct softpipe_context *)pipe;
219}
220
221
222struct pipe_context *
223softpipe_create_context(struct pipe_screen *, void *priv, unsigned flags);
224
225struct pipe_resource *
226softpipe_user_buffer_create(struct pipe_screen *screen,
227                            void *ptr,
228                            unsigned bytes,
229			    unsigned bind_flags);
230
231#define SP_UNREFERENCED         0
232#define SP_REFERENCED_FOR_READ  (1 << 0)
233#define SP_REFERENCED_FOR_WRITE (1 << 1)
234
235unsigned int
236softpipe_is_resource_referenced( struct pipe_context *pipe,
237                                 struct pipe_resource *texture,
238                                 unsigned level, int layer);
239
240#endif /* SP_CONTEXT_H */
241