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 struct softpipe_vbuf_render;
44 struct draw_context;
45 struct draw_stage;
46 struct softpipe_tile_cache;
47 struct softpipe_tex_tile_cache;
48 struct sp_fragment_shader;
49 struct sp_vertex_shader;
50 struct sp_velems_state;
51 struct sp_so_state;
52
53 struct 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
196 static inline struct softpipe_context *
softpipe_context(struct pipe_context * pipe)197 softpipe_context( struct pipe_context *pipe )
198 {
199 return (struct softpipe_context *)pipe;
200 }
201
202
203 struct pipe_context *
204 softpipe_create_context(struct pipe_screen *, void *priv, unsigned flags);
205
206 struct pipe_resource *
207 softpipe_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
216 unsigned int
217 softpipe_is_resource_referenced( struct pipe_context *pipe,
218 struct pipe_resource *texture,
219 unsigned level, int layer);
220
221 #endif /* SP_CONTEXT_H */
222