1/*
2 * Copyright (c) 2012-2015 Etnaviv Project
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, sub license,
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
12 * next paragraph) shall be included in all copies or substantial portions
13 * of the 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 NON-INFRINGEMENT. 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
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 *    Wladimir J. van der Laan <laanwj@gmail.com>
25 *    Christian Gmeiner <christian.gmeiner@gmail.com>
26 */
27
28#ifndef H_ETNAVIV_CONTEXT
29#define H_ETNAVIV_CONTEXT
30
31#include <stdint.h>
32
33#include "etnaviv_resource.h"
34#include "etnaviv_tiling.h"
35#include "pipe/p_context.h"
36#include "pipe/p_defines.h"
37#include "pipe/p_format.h"
38#include "pipe/p_shader_tokens.h"
39#include "pipe/p_state.h"
40#include "util/slab.h"
41
42struct pipe_screen;
43struct etna_shader_variant;
44struct etna_sampler_ts;
45
46struct etna_index_buffer {
47   struct etna_reloc FE_INDEX_STREAM_BASE_ADDR;
48   uint32_t FE_INDEX_STREAM_CONTROL;
49   uint32_t FE_PRIMITIVE_RESTART_INDEX;
50};
51
52struct etna_shader_input {
53   int vs_reg; /* VS input register */
54};
55
56enum etna_varying_special {
57   ETNA_VARYING_VSOUT = 0, /* from VS */
58   ETNA_VARYING_POINTCOORD, /* point texture coord */
59};
60
61struct etna_shader_varying {
62   int num_components;
63   enum etna_varying_special special;
64   int pa_attributes;
65   int vs_reg; /* VS output register */
66};
67
68struct etna_transfer {
69   struct pipe_transfer base;
70   struct pipe_resource *rsc;
71   void *staging;
72   void *mapped;
73};
74
75struct etna_constbuf_state {
76   struct pipe_constant_buffer cb[ETNA_MAX_CONST_BUF];
77   uint32_t enabled_mask;
78};
79
80struct etna_vertexbuf_state {
81   struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
82   struct compiled_set_vertex_buffer cvb[PIPE_MAX_ATTRIBS];
83   unsigned count;
84   uint32_t enabled_mask;
85};
86
87struct etna_shader_state {
88   void *bind_vs, *bind_fs;
89   struct etna_shader_variant *vs, *fs;
90};
91
92enum etna_uniform_contents {
93   ETNA_UNIFORM_UNUSED = 0,
94   ETNA_UNIFORM_CONSTANT,
95   ETNA_UNIFORM_UNIFORM,
96   ETNA_UNIFORM_TEXRECT_SCALE_X,
97   ETNA_UNIFORM_TEXRECT_SCALE_Y,
98   ETNA_UNIFORM_UBO0_ADDR,
99   ETNA_UNIFORM_UBOMAX_ADDR = ETNA_UNIFORM_UBO0_ADDR + ETNA_MAX_CONST_BUF - 1,
100};
101
102struct etna_shader_uniform_info {
103   enum etna_uniform_contents *contents;
104   uint32_t *data;
105   uint32_t count;
106};
107
108struct etna_context {
109   struct pipe_context base;
110
111   /* GPU-specific implementation to emit texture state */
112   void (*emit_texture_state)(struct etna_context *pctx);
113   /* Get sampler TS pointer for sampler view */
114   struct etna_sampler_ts *(*ts_for_sampler_view)(struct pipe_sampler_view *pview);
115   /* GPU-specific blit implementation */
116   bool (*blit)(struct pipe_context *pipe, const struct pipe_blit_info *info);
117
118   struct etna_screen *screen;
119   struct etna_cmd_stream *stream;
120
121   /* which state objects need to be re-emit'd: */
122   enum {
123      ETNA_DIRTY_BLEND           = (1 << 0),
124      ETNA_DIRTY_SAMPLERS        = (1 << 1),
125      ETNA_DIRTY_RASTERIZER      = (1 << 2),
126      ETNA_DIRTY_ZSA             = (1 << 3),
127      ETNA_DIRTY_VERTEX_ELEMENTS = (1 << 4),
128      ETNA_DIRTY_BLEND_COLOR     = (1 << 6),
129      ETNA_DIRTY_STENCIL_REF     = (1 << 7),
130      ETNA_DIRTY_SAMPLE_MASK     = (1 << 8),
131      ETNA_DIRTY_VIEWPORT        = (1 << 9),
132      ETNA_DIRTY_FRAMEBUFFER     = (1 << 10),
133      ETNA_DIRTY_SCISSOR         = (1 << 11),
134      ETNA_DIRTY_SAMPLER_VIEWS   = (1 << 12),
135      ETNA_DIRTY_CONSTBUF        = (1 << 13),
136      ETNA_DIRTY_VERTEX_BUFFERS  = (1 << 14),
137      ETNA_DIRTY_INDEX_BUFFER    = (1 << 15),
138      ETNA_DIRTY_SHADER          = (1 << 16),
139      ETNA_DIRTY_TS              = (1 << 17),
140      ETNA_DIRTY_TEXTURE_CACHES  = (1 << 18),
141      ETNA_DIRTY_DERIVE_TS       = (1 << 19),
142      ETNA_DIRTY_SCISSOR_CLIP    = (1 << 20),
143   } dirty;
144
145   struct slab_child_pool transfer_pool;
146   struct blitter_context *blitter;
147
148   /* compiled bindable state */
149   unsigned sample_mask;
150   struct pipe_blend_state *blend;
151   unsigned num_fragment_samplers;
152   uint32_t active_samplers;
153   struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
154   struct pipe_rasterizer_state *rasterizer;
155   struct pipe_depth_stencil_alpha_state *zsa;
156   struct compiled_vertex_elements_state *vertex_elements;
157   struct compiled_shader_state shader_state;
158   struct pipe_scissor_state clipping;
159
160   /* to simplify the emit process we store pre compiled state objects,
161    * which got 'compiled' during state change. */
162   struct compiled_blend_color blend_color;
163   struct compiled_stencil_ref stencil_ref;
164   struct compiled_framebuffer_state framebuffer;
165   struct compiled_viewport_state viewport;
166   unsigned num_fragment_sampler_views;
167   uint32_t active_sampler_views;
168   uint32_t dirty_sampler_views;
169   struct pipe_sampler_view *sampler_view[PIPE_MAX_SAMPLERS];
170   struct etna_constbuf_state constant_buffer[PIPE_SHADER_TYPES];
171   struct etna_vertexbuf_state vertex_buffer;
172   struct etna_index_buffer index_buffer;
173   struct etna_shader_state shader;
174
175   /* saved parameter-like state. these are mainly kept around for the blitter */
176   struct pipe_framebuffer_state framebuffer_s;
177   struct pipe_stencil_ref stencil_ref_s;
178   struct pipe_viewport_state viewport_s;
179   struct pipe_scissor_state scissor;
180
181   /* stats/counters */
182   struct {
183      uint64_t prims_generated;
184      uint64_t draw_calls;
185      uint64_t rs_operations;
186   } stats;
187
188   struct pipe_debug_callback debug;
189   int in_fence_fd;
190
191   /* list of accumulated HW queries */
192   struct list_head active_acc_queries;
193
194   struct etna_bo *dummy_rt;
195   struct etna_reloc dummy_rt_reloc;
196
197   /* Dummy texture descriptor (if needed) */
198   struct etna_bo *dummy_desc_bo;
199   struct etna_reloc DUMMY_DESC_ADDR;
200
201   /* set of resources used by currently-unsubmitted renders */
202   struct set *used_resources_read;
203   struct set *used_resources_write;
204
205   /* resources that must be flushed implicitly at the context flush time */
206   struct set *flush_resources;
207
208   mtx_t lock;
209};
210
211static inline struct etna_context *
212etna_context(struct pipe_context *pctx)
213{
214   return (struct etna_context *)pctx;
215}
216
217static inline struct etna_transfer *
218etna_transfer(struct pipe_transfer *p)
219{
220   return (struct etna_transfer *)p;
221}
222
223struct pipe_context *
224etna_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags);
225
226#endif
227