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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_VSCONSTANTS (1 << 7)
44 #define SWR_NEW_FSCONSTANTS (1 << 8)
45 #define SWR_NEW_VERTEX (1 << 9)
46 #define SWR_NEW_STIPPLE (1 << 10)
47 #define SWR_NEW_SCISSOR (1 << 11)
48 #define SWR_NEW_VIEWPORT (1 << 12)
49 #define SWR_NEW_FRAMEBUFFER (1 << 13)
50 #define SWR_NEW_CLIP (1 << 14)
51 #define SWR_NEW_SO (1 << 15)
52 #define SWR_NEW_ALL 0x0000ffff
53 
54 namespace std
55 {
56 template <> struct hash<BLEND_COMPILE_STATE> {
57    std::size_t operator()(const BLEND_COMPILE_STATE &k) const
58    {
59       return util_hash_crc32(&k, sizeof(k));
60    }
61 };
62 };
63 
64 struct swr_jit_texture {
65    uint32_t width; // same as number of elements
66    uint32_t height;
67    uint32_t depth; // doubles as array size
68    uint32_t first_level;
69    uint32_t last_level;
70    const uint8_t *base_ptr;
71    uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
72    uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
73    uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS];
74 };
75 
76 struct swr_jit_sampler {
77    float min_lod;
78    float max_lod;
79    float lod_bias;
80    float border_color[4];
81 };
82 
83 struct swr_draw_context {
84    const float *constantVS[PIPE_MAX_CONSTANT_BUFFERS];
85    uint32_t num_constantsVS[PIPE_MAX_CONSTANT_BUFFERS];
86    const float *constantFS[PIPE_MAX_CONSTANT_BUFFERS];
87    uint32_t num_constantsFS[PIPE_MAX_CONSTANT_BUFFERS];
88 
89    swr_jit_texture texturesVS[PIPE_MAX_SHADER_SAMPLER_VIEWS];
90    swr_jit_sampler samplersVS[PIPE_MAX_SAMPLERS];
91    swr_jit_texture texturesFS[PIPE_MAX_SHADER_SAMPLER_VIEWS];
92    swr_jit_sampler samplersFS[PIPE_MAX_SAMPLERS];
93 
94    float userClipPlanes[PIPE_MAX_CLIP_PLANES][4];
95 
96    SWR_SURFACE_STATE renderTargets[SWR_NUM_ATTACHMENTS];
97    void *pStats;
98 };
99 
100 /* gen_llvm_types FINI */
101 
102 struct swr_context {
103    struct pipe_context pipe; /**< base class */
104 
105    HANDLE swrContext;
106 
107    /** Constant state objects */
108    struct swr_blend_state *blend;
109    struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
110    struct pipe_depth_stencil_alpha_state *depth_stencil;
111    struct pipe_rasterizer_state *rasterizer;
112 
113    struct swr_vertex_shader *vs;
114    struct swr_fragment_shader *fs;
115    struct swr_vertex_element_state *velems;
116 
117    /** Other rendering state */
118    struct pipe_blend_color blend_color;
119    struct pipe_stencil_ref stencil_ref;
120    struct pipe_clip_state clip;
121    struct pipe_constant_buffer
122       constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
123    struct pipe_framebuffer_state framebuffer;
124    struct pipe_poly_stipple poly_stipple;
125    struct pipe_scissor_state scissor;
126    SWR_RECT swr_scissor;
127    struct pipe_sampler_view *
128       sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
129 
130    struct pipe_viewport_state viewport;
131    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
132    struct pipe_index_buffer index_buffer;
133 
134    struct blitter_context *blitter;
135 
136    /** Conditional query object and mode */
137    struct pipe_query *render_cond_query;
138    uint render_cond_mode;
139    boolean render_cond_cond;
140    unsigned active_queries;
141 
142    unsigned num_vertex_buffers;
143    unsigned num_samplers[PIPE_SHADER_TYPES];
144    unsigned num_sampler_views[PIPE_SHADER_TYPES];
145 
146    unsigned sample_mask;
147 
148    // streamout
149    pipe_stream_output_target *so_targets[MAX_SO_STREAMS];
150    uint32_t num_so_targets;
151 
152    /* Temp storage for user_buffer constants */
153    struct swr_scratch_buffers *scratch;
154 
155    // blend jit functions
156    std::unordered_map<BLEND_COMPILE_STATE, PFN_BLEND_JIT_FUNC> *blendJIT;
157 
158    /* Derived SWR API DrawState */
159    struct swr_derived_state derived;
160 
161    /* SWR private state - draw context */
162    struct swr_draw_context swrDC;
163 
164    unsigned dirty; /**< Mask of SWR_NEW_x flags */
165 };
166 
167 static INLINE struct swr_context *
168 swr_context(struct pipe_context *pipe)
169 {
170    return (struct swr_context *)pipe;
171 }
172 
173 static INLINE void
174 swr_update_draw_context(struct swr_context *ctx,
175       struct swr_query_result *pqr = nullptr)
176 {
177    swr_draw_context *pDC =
178       (swr_draw_context *)SwrGetPrivateContextState(ctx->swrContext);
179    if (pqr)
180       ctx->swrDC.pStats = pqr;
181    memcpy(pDC, &ctx->swrDC, sizeof(swr_draw_context));
182 }
183 
184 struct pipe_context *swr_create_context(struct pipe_screen *, void *priv, unsigned flags);
185 
186 void swr_state_init(struct pipe_context *pipe);
187 
188 void swr_clear_init(struct pipe_context *pipe);
189 
190 void swr_draw_init(struct pipe_context *pipe);
191 
192 void swr_finish(struct pipe_context *pipe);
193 #endif
194