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 "indices/u_primconvert.h"
36#include "pipe/p_context.h"
37#include "pipe/p_defines.h"
38#include "pipe/p_format.h"
39#include "pipe/p_shader_tokens.h"
40#include "pipe/p_state.h"
41#include "util/slab.h"
42
43struct pipe_screen;
44struct etna_shader;
45
46struct etna_index_buffer {
47   struct pipe_index_buffer ib;
48   struct etna_reloc FE_INDEX_STREAM_BASE_ADDR;
49   uint32_t FE_INDEX_STREAM_CONTROL;
50   uint32_t FE_PRIMITIVE_RESTART_INDEX;
51};
52
53struct etna_shader_input {
54   int vs_reg; /* VS input register */
55};
56
57enum etna_varying_special {
58   ETNA_VARYING_VSOUT = 0, /* from VS */
59   ETNA_VARYING_POINTCOORD, /* point texture coord */
60};
61
62struct etna_shader_varying {
63   int num_components;
64   enum etna_varying_special special;
65   int pa_attributes;
66   int vs_reg; /* VS output register */
67};
68
69struct etna_transfer {
70   struct pipe_transfer base;
71   struct pipe_resource *rsc;
72   void *staging;
73};
74
75struct etna_vertexbuf_state {
76   struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
77   struct compiled_set_vertex_buffer cvb[PIPE_MAX_ATTRIBS];
78   unsigned count;
79   uint32_t enabled_mask;
80};
81
82enum etna_immediate_contents {
83   ETNA_IMMEDIATE_UNUSED = 0,
84   ETNA_IMMEDIATE_CONSTANT,
85   ETNA_IMMEDIATE_TEXRECT_SCALE_X,
86   ETNA_IMMEDIATE_TEXRECT_SCALE_Y,
87};
88
89struct etna_shader_uniform_info {
90   enum etna_immediate_contents *imm_contents;
91   uint32_t *imm_data;
92   uint32_t imm_count;
93   uint32_t const_count;
94};
95
96struct etna_context {
97   struct pipe_context base;
98
99   struct etna_specs specs;
100   struct etna_screen *screen;
101   struct etna_cmd_stream *stream;
102
103   /* which state objects need to be re-emit'd: */
104   enum {
105      ETNA_DIRTY_BLEND           = (1 << 0),
106      ETNA_DIRTY_SAMPLERS        = (1 << 1),
107      ETNA_DIRTY_RASTERIZER      = (1 << 2),
108      ETNA_DIRTY_ZSA             = (1 << 3),
109      ETNA_DIRTY_VERTEX_ELEMENTS = (1 << 4),
110      ETNA_DIRTY_BLEND_COLOR     = (1 << 6),
111      ETNA_DIRTY_STENCIL_REF     = (1 << 7),
112      ETNA_DIRTY_SAMPLE_MASK     = (1 << 8),
113      ETNA_DIRTY_VIEWPORT        = (1 << 9),
114      ETNA_DIRTY_FRAMEBUFFER     = (1 << 10),
115      ETNA_DIRTY_SCISSOR         = (1 << 11),
116      ETNA_DIRTY_SAMPLER_VIEWS   = (1 << 12),
117      ETNA_DIRTY_CONSTBUF        = (1 << 13),
118      ETNA_DIRTY_VERTEX_BUFFERS  = (1 << 14),
119      ETNA_DIRTY_INDEX_BUFFER    = (1 << 15),
120      ETNA_DIRTY_SHADER          = (1 << 16),
121      ETNA_DIRTY_TS              = (1 << 17),
122      ETNA_DIRTY_TEXTURE_CACHES  = (1 << 18),
123   } dirty;
124
125   uint32_t prim_hwsupport;
126   struct primconvert_context *primconvert;
127
128   /* list of resources used by currently-unsubmitted renders */
129   struct list_head used_resources;
130
131   struct slab_child_pool transfer_pool;
132   struct blitter_context *blitter;
133
134   /* compiled bindable state */
135   unsigned sample_mask;
136   struct pipe_blend_state *blend;
137   unsigned num_fragment_samplers;
138   uint32_t active_samplers;
139   struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
140   struct pipe_rasterizer_state *rasterizer;
141   struct pipe_depth_stencil_alpha_state *zsa;
142   struct compiled_vertex_elements_state *vertex_elements;
143   struct compiled_shader_state shader_state;
144
145   /* to simplify the emit process we store pre compiled state objects,
146    * which got 'compiled' during state change. */
147   struct compiled_blend_color blend_color;
148   struct compiled_stencil_ref stencil_ref;
149   struct compiled_framebuffer_state framebuffer;
150   struct compiled_scissor_state scissor;
151   struct compiled_viewport_state viewport;
152   unsigned num_fragment_sampler_views;
153   uint32_t active_sampler_views;
154   struct pipe_sampler_view *sampler_view[PIPE_MAX_SAMPLERS];
155   struct pipe_constant_buffer constant_buffer[PIPE_SHADER_TYPES];
156   struct etna_vertexbuf_state vertex_buffer;
157   struct etna_index_buffer index_buffer;
158
159   /* pointers to the bound state. these are mainly kept around for the blitter */
160   struct etna_shader *vs;
161   struct etna_shader *fs;
162
163   /* saved parameter-like state. these are mainly kept around for the blitter */
164   struct pipe_framebuffer_state framebuffer_s;
165   struct pipe_stencil_ref stencil_ref_s;
166   struct pipe_viewport_state viewport_s;
167   struct pipe_scissor_state scissor_s;
168
169   /* cached state of entire GPU */
170   struct etna_3d_state gpu3d;
171
172   /* stats/counters */
173   struct {
174      uint64_t prims_emitted;
175      uint64_t draw_calls;
176   } stats;
177};
178
179static inline struct etna_context *
180etna_context(struct pipe_context *pctx)
181{
182   return (struct etna_context *)pctx;
183}
184
185static inline struct etna_transfer *
186etna_transfer(struct pipe_transfer *p)
187{
188   return (struct etna_transfer *)p;
189}
190
191struct pipe_context *
192etna_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags);
193
194#endif
195