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      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 (at) gmail.com>
     25  *    Christian Gmeiner <christian.gmeiner (at) 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 
     42 struct pipe_screen;
     43 struct etna_shader_variant;
     44 struct etna_sampler_ts;
     45 
     46 struct 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 
     52 struct etna_shader_input {
     53    int vs_reg; /* VS input register */
     54 };
     55 
     56 enum etna_varying_special {
     57    ETNA_VARYING_VSOUT = 0, /* from VS */
     58    ETNA_VARYING_POINTCOORD, /* point texture coord */
     59 };
     60 
     61 struct 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 
     68 struct etna_transfer {
     69    struct pipe_transfer base;
     70    struct pipe_resource *rsc;
     71    void *staging;
     72    void *mapped;
     73 };
     74 
     75 struct etna_constbuf_state {
     76    struct pipe_constant_buffer cb[ETNA_MAX_CONST_BUF];
     77    uint32_t enabled_mask;
     78 };
     79 
     80 struct 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 
     87 struct etna_shader_state {
     88    void *bind_vs, *bind_fs;
     89    struct etna_shader_variant *vs, *fs;
     90 };
     91 
     92 enum 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 
    102 struct etna_shader_uniform_info {
    103    enum etna_uniform_contents *contents;
    104    uint32_t *data;
    105    uint32_t count;
    106 };
    107 
    108 struct 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 
    211 static inline struct etna_context *
    212 etna_context(struct pipe_context *pctx)
    213 {
    214    return (struct etna_context *)pctx;
    215 }
    216 
    217 static inline struct etna_transfer *
    218 etna_transfer(struct pipe_transfer *p)
    219 {
    220    return (struct etna_transfer *)p;
    221 }
    222 
    223 struct pipe_context *
    224 etna_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags);
    225 
    226 #endif
    227