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
50 struct softpipe_vbuf_render;
51 struct draw_context;
52 struct draw_stage;
53 struct softpipe_tile_cache;
54 struct softpipe_tex_tile_cache;
55 struct sp_fragment_shader;
56 struct sp_vertex_shader;
57 struct sp_velems_state;
58 struct sp_so_state;
59
60 struct 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 gallium frontend */
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 bool 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 struct pipe_debug_callback debug;
209 };
210
211
212 static inline struct softpipe_context *
softpipe_context(struct pipe_context * pipe)213 softpipe_context( struct pipe_context *pipe )
214 {
215 return (struct softpipe_context *)pipe;
216 }
217
218
219 struct pipe_context *
220 softpipe_create_context(struct pipe_screen *, void *priv, unsigned flags);
221
222 struct pipe_resource *
223 softpipe_user_buffer_create(struct pipe_screen *screen,
224 void *ptr,
225 unsigned bytes,
226 unsigned bind_flags);
227
228 #define SP_UNREFERENCED 0
229 #define SP_REFERENCED_FOR_READ (1 << 0)
230 #define SP_REFERENCED_FOR_WRITE (1 << 1)
231
232 unsigned int
233 softpipe_is_resource_referenced( struct pipe_context *pipe,
234 struct pipe_resource *texture,
235 unsigned level, int layer);
236
237 #endif /* SP_CONTEXT_H */
238