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
43struct softpipe_vbuf_render;
44struct draw_context;
45struct draw_stage;
46struct softpipe_tile_cache;
47struct softpipe_tex_tile_cache;
48struct sp_fragment_shader;
49struct sp_vertex_shader;
50struct sp_velems_state;
51struct sp_so_state;
52
53struct softpipe_context {
54   struct pipe_context pipe;  /**< base class */
55
56   /** Constant state objects */
57   struct pipe_blend_state *blend;
58   struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
59   struct pipe_depth_stencil_alpha_state *depth_stencil;
60   struct pipe_rasterizer_state *rasterizer;
61   struct sp_fragment_shader *fs;
62   struct sp_fragment_shader_variant *fs_variant;
63   struct sp_vertex_shader *vs;
64   struct sp_geometry_shader *gs;
65   struct sp_velems_state *velems;
66   struct sp_so_state *so;
67   struct sp_compute_shader *cs;
68
69   /** Other rendering state */
70   struct pipe_blend_color blend_color;
71   struct pipe_blend_color blend_color_clamped;
72   struct pipe_stencil_ref stencil_ref;
73   struct pipe_clip_state clip;
74   struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
75   struct pipe_framebuffer_state framebuffer;
76   struct pipe_scissor_state scissors[PIPE_MAX_VIEWPORTS];
77   struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
78
79   struct pipe_image_view images[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_IMAGES];
80   struct pipe_shader_buffer buffers[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_BUFFERS];
81   struct pipe_viewport_state viewports[PIPE_MAX_VIEWPORTS];
82   struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
83   struct pipe_resource *mapped_vs_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
84   struct pipe_resource *mapped_gs_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
85
86   struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
87   unsigned num_so_targets;
88
89   struct pipe_query_data_so_statistics so_stats[PIPE_MAX_VERTEX_STREAMS];
90
91   struct pipe_query_data_pipeline_statistics pipeline_statistics;
92   unsigned active_statistics_queries;
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 sp_setup_info setup_info;
116   struct vertex_info vertex_info;
117
118   /** Which vertex shader output slot contains point size */
119   int8_t psize_slot;
120
121   /** Which vertex shader output slot contains viewport index */
122   int8_t viewport_index_slot;
123
124   /** Which vertex shader output slot contains layer */
125   int8_t layer_slot;
126
127   /** The reduced version of the primitive supplied by the gallium frontend */
128   unsigned reduced_api_prim;
129
130   /** Derived information about which winding orders to cull */
131   unsigned cull_mode;
132
133   /**
134    * The reduced primitive after unfilled triangles, wide-line decomposition,
135    * etc, are taken into account.  This is the primitive type that's actually
136    * rasterized.
137    */
138   unsigned reduced_prim;
139
140   /** Derived from scissor and surface bounds: */
141   struct pipe_scissor_state cliprect[PIPE_MAX_VIEWPORTS];
142
143   /** Conditional query object and mode */
144   struct pipe_query *render_cond_query;
145   enum pipe_render_cond_flag render_cond_mode;
146   bool render_cond_cond;
147
148   /** Software quad rendering pipeline */
149   struct {
150      struct quad_stage *shade;
151      struct quad_stage *depth_test;
152      struct quad_stage *blend;
153      struct quad_stage *first; /**< points to one of the above stages */
154   } quad;
155
156   /** TGSI exec things */
157   struct {
158      struct sp_tgsi_sampler *sampler[PIPE_SHADER_TYPES];
159      struct sp_tgsi_image *image[PIPE_SHADER_TYPES];
160      struct sp_tgsi_buffer *buffer[PIPE_SHADER_TYPES];
161   } tgsi;
162
163   struct tgsi_exec_machine *fs_machine;
164   /** whether early depth testing is enabled */
165   bool early_depth;
166
167   /** The primitive drawing context */
168   struct draw_context *draw;
169
170   /** Draw module backend */
171   struct vbuf_render *vbuf_backend;
172   struct draw_stage *vbuf;
173
174   struct blitter_context *blitter;
175
176   boolean dirty_render_cache;
177
178   struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
179   struct softpipe_tile_cache *zsbuf_cache;
180
181   unsigned tex_timestamp;
182
183   /*
184    * Texture caches for vertex, fragment, geometry stages.
185    * Don't use PIPE_SHADER_TYPES here to avoid allocating unused memory
186    * for compute shaders.
187    * XXX wouldn't it make more sense for the tile cache to just be part
188    * of sp_sampler_view?
189    */
190   struct softpipe_tex_tile_cache *tex_cache[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
191
192   struct util_debug_callback debug;
193};
194
195
196static inline struct softpipe_context *
197softpipe_context( struct pipe_context *pipe )
198{
199   return (struct softpipe_context *)pipe;
200}
201
202
203struct pipe_context *
204softpipe_create_context(struct pipe_screen *, void *priv, unsigned flags);
205
206struct pipe_resource *
207softpipe_user_buffer_create(struct pipe_screen *screen,
208                            void *ptr,
209                            unsigned bytes,
210			    unsigned bind_flags);
211
212#define SP_UNREFERENCED         0
213#define SP_REFERENCED_FOR_READ  (1 << 0)
214#define SP_REFERENCED_FOR_WRITE (1 << 1)
215
216unsigned int
217softpipe_is_resource_referenced( struct pipe_context *pipe,
218                                 struct pipe_resource *texture,
219                                 unsigned level, int layer);
220
221#endif /* SP_CONTEXT_H */
222