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1 /****************************************************************************
2  * Copyright (C) 2015 Intel Corporation.   All Rights Reserved.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21  * IN THE SOFTWARE.
22  ***************************************************************************/
23 
24 #ifndef SWR_CONTEXT_H
25 #define SWR_CONTEXT_H
26 
27 #include "common/os.h"
28 
29 #include "pipe/p_context.h"
30 #include "pipe/p_state.h"
31 #include "util/u_blitter.h"
32 #include "jit_api.h"
33 #include "swr_state.h"
34 #include <unordered_map>
35 
36 #define SWR_NEW_BLEND (1 << 0)
37 #define SWR_NEW_RASTERIZER (1 << 1)
38 #define SWR_NEW_DEPTH_STENCIL_ALPHA (1 << 2)
39 #define SWR_NEW_SAMPLER (1 << 3)
40 #define SWR_NEW_SAMPLER_VIEW (1 << 4)
41 #define SWR_NEW_VS (1 << 5)
42 #define SWR_NEW_FS (1 << 6)
43 #define SWR_NEW_GS (1 << 7)
44 #define SWR_NEW_VSCONSTANTS (1 << 8)
45 #define SWR_NEW_FSCONSTANTS (1 << 9)
46 #define SWR_NEW_GSCONSTANTS (1 << 10)
47 #define SWR_NEW_VERTEX (1 << 11)
48 #define SWR_NEW_STIPPLE (1 << 12)
49 #define SWR_NEW_SCISSOR (1 << 13)
50 #define SWR_NEW_VIEWPORT (1 << 14)
51 #define SWR_NEW_FRAMEBUFFER (1 << 15)
52 #define SWR_NEW_CLIP (1 << 16)
53 #define SWR_NEW_SO (1 << 17)
54 #define SWR_LARGE_CLIENT_DRAW (1<<18) // Indicates client draw will block
55 
56 namespace std
57 {
58 template <> struct hash<BLEND_COMPILE_STATE> {
59    std::size_t operator()(const BLEND_COMPILE_STATE &k) const
60    {
61       return util_hash_crc32(&k, sizeof(k));
62    }
63 };
64 };
65 
66 struct swr_jit_texture {
67    uint32_t width; // same as number of elements
68    uint32_t height;
69    uint32_t depth; // doubles as array size
70    uint32_t first_level;
71    uint32_t last_level;
72    const uint8_t *base_ptr;
73    uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
74    uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
75    uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS];
76 };
77 
78 struct swr_jit_sampler {
79    float min_lod;
80    float max_lod;
81    float lod_bias;
82    float border_color[4];
83 };
84 
85 struct swr_draw_context {
86    const float *constantVS[PIPE_MAX_CONSTANT_BUFFERS];
87    uint32_t num_constantsVS[PIPE_MAX_CONSTANT_BUFFERS];
88    const float *constantFS[PIPE_MAX_CONSTANT_BUFFERS];
89    uint32_t num_constantsFS[PIPE_MAX_CONSTANT_BUFFERS];
90    const float *constantGS[PIPE_MAX_CONSTANT_BUFFERS];
91    uint32_t num_constantsGS[PIPE_MAX_CONSTANT_BUFFERS];
92 
93    swr_jit_texture texturesVS[PIPE_MAX_SHADER_SAMPLER_VIEWS];
94    swr_jit_sampler samplersVS[PIPE_MAX_SAMPLERS];
95    swr_jit_texture texturesFS[PIPE_MAX_SHADER_SAMPLER_VIEWS];
96    swr_jit_sampler samplersFS[PIPE_MAX_SAMPLERS];
97    swr_jit_texture texturesGS[PIPE_MAX_SHADER_SAMPLER_VIEWS];
98    swr_jit_sampler samplersGS[PIPE_MAX_SAMPLERS];
99 
100    float userClipPlanes[PIPE_MAX_CLIP_PLANES][4];
101 
102    uint32_t polyStipple[32];
103 
104    SWR_SURFACE_STATE renderTargets[SWR_NUM_ATTACHMENTS];
105    struct swr_query_result *pStats; // @llvm_struct
106    SWR_INTERFACE *pAPI; // @llvm_struct - Needed for the swr_memory callbacks
107 };
108 
109 /* gen_llvm_types FINI */
110 
111 struct swr_context {
112    struct pipe_context pipe; /**< base class */
113 
114    HANDLE swrContext;
115 
116    /** Constant state objects */
117    struct swr_blend_state *blend;
118    struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
119    struct pipe_depth_stencil_alpha_state *depth_stencil;
120    struct pipe_rasterizer_state *rasterizer;
121 
122    struct swr_vertex_shader *vs;
123    struct swr_fragment_shader *fs;
124    struct swr_geometry_shader *gs;
125    struct swr_vertex_element_state *velems;
126 
127    /** Other rendering state */
128    struct pipe_blend_color blend_color;
129    struct pipe_stencil_ref stencil_ref;
130    struct pipe_clip_state clip;
131    struct pipe_constant_buffer
132       constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
133    struct pipe_framebuffer_state framebuffer;
134    struct swr_poly_stipple poly_stipple;
135    struct pipe_scissor_state scissor;
136    SWR_RECT swr_scissor;
137    struct pipe_sampler_view *
138       sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
139 
140    struct pipe_viewport_state viewport;
141    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
142 
143    struct blitter_context *blitter;
144 
145    /** Conditional query object and mode */
146    struct pipe_query *render_cond_query;
147    enum pipe_render_cond_flag render_cond_mode;
148    boolean render_cond_cond;
149    unsigned active_queries;
150 
151    unsigned num_vertex_buffers;
152    unsigned num_samplers[PIPE_SHADER_TYPES];
153    unsigned num_sampler_views[PIPE_SHADER_TYPES];
154 
155    unsigned sample_mask;
156 
157    // streamout
158    pipe_stream_output_target *so_targets[MAX_SO_STREAMS];
159    uint32_t num_so_targets;
160 
161    /* Temp storage for user_buffer constants */
162    struct swr_scratch_buffers *scratch;
163 
164    // blend jit functions
165    std::unordered_map<BLEND_COMPILE_STATE, PFN_BLEND_JIT_FUNC> *blendJIT;
166 
167    /* Derived SWR API DrawState */
168    struct swr_derived_state derived;
169 
170    /* SWR private state - draw context */
171    struct swr_draw_context swrDC;
172 
173    unsigned dirty; /**< Mask of SWR_NEW_x flags */
174 
175    SWR_INTERFACE api;
176 
177    uint32_t max_draws_in_flight;
178 };
179 
180 static INLINE struct swr_context *
181 swr_context(struct pipe_context *pipe)
182 {
183    return (struct swr_context *)pipe;
184 }
185 
186 static INLINE void
187 swr_update_draw_context(struct swr_context *ctx,
188       struct swr_query_result *pqr = nullptr)
189 {
190    swr_draw_context *pDC =
191       (swr_draw_context *)ctx->api.pfnSwrGetPrivateContextState(ctx->swrContext);
192    if (pqr)
193       ctx->swrDC.pStats = pqr;
194    memcpy(pDC, &ctx->swrDC, sizeof(swr_draw_context));
195 }
196 
197 struct pipe_context *swr_create_context(struct pipe_screen *, void *priv, unsigned flags);
198 
199 void swr_state_init(struct pipe_context *pipe);
200 
201 void swr_clear_init(struct pipe_context *pipe);
202 
203 void swr_draw_init(struct pipe_context *pipe);
204 
205 void swr_finish(struct pipe_context *pipe);
206 
207 void swr_do_msaa_resolve(struct pipe_resource *src_resource,
208                          struct pipe_resource *dst_resource);
209 #endif
210