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      1 /*
      2  * Copyright 2014, 2015 Red Hat.
      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  * on the rights to use, copy, modify, merge, publish, distribute, sub
      8  * license, and/or sell copies of the Software, and to permit persons to whom
      9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
     18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
     19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
     22  */
     23 
     24 #ifndef VIRGL_RESOURCE_H
     25 #define VIRGL_RESOURCE_H
     26 
     27 #include "util/u_resource.h"
     28 #include "util/u_range.h"
     29 #include "util/list.h"
     30 #include "util/u_transfer.h"
     31 
     32 #include "virgl_hw.h"
     33 #define VR_MAX_TEXTURE_2D_LEVELS 15
     34 
     35 struct winsys_handle;
     36 struct virgl_screen;
     37 struct virgl_context;
     38 
     39 struct virgl_resource {
     40    struct u_resource u;
     41    struct virgl_hw_res *hw_res;
     42    boolean clean;
     43 };
     44 
     45 struct virgl_buffer {
     46    struct virgl_resource base;
     47 
     48    struct list_head flush_list;
     49    boolean on_list;
     50 
     51    /* The buffer range which is initialized (with a write transfer,
     52     * streamout, DMA, or as a random access target). The rest of
     53     * the buffer is considered invalid and can be mapped unsynchronized.
     54     *
     55     * This allows unsychronized mapping of a buffer range which hasn't
     56     * been used yet. It's for applications which forget to use
     57     * the unsynchronized map flag and expect the driver to figure it out.
     58     */
     59    struct util_range valid_buffer_range;
     60 };
     61 
     62 struct virgl_texture {
     63    struct virgl_resource base;
     64 
     65    unsigned long level_offset[VR_MAX_TEXTURE_2D_LEVELS];
     66    unsigned stride[VR_MAX_TEXTURE_2D_LEVELS];
     67 };
     68 
     69 struct virgl_transfer {
     70    struct pipe_transfer base;
     71    uint32_t offset;
     72    struct virgl_resource *resolve_tmp;
     73 };
     74 
     75 void virgl_resource_destroy(struct pipe_screen *screen,
     76                             struct pipe_resource *resource);
     77 
     78 void virgl_init_screen_resource_functions(struct pipe_screen *screen);
     79 
     80 void virgl_init_context_resource_functions(struct pipe_context *ctx);
     81 
     82 struct pipe_resource *virgl_texture_create(struct virgl_screen *vs,
     83                                            const struct pipe_resource *templ);
     84 
     85 struct pipe_resource *virgl_texture_from_handle(struct virgl_screen *vs,
     86                                                 const struct pipe_resource *templ,
     87                                                 struct winsys_handle *whandle);
     88 
     89 static inline struct virgl_resource *virgl_resource(struct pipe_resource *r)
     90 {
     91    return (struct virgl_resource *)r;
     92 }
     93 
     94 static inline struct virgl_buffer *virgl_buffer(struct pipe_resource *r)
     95 {
     96    return (struct virgl_buffer *)r;
     97 }
     98 
     99 static inline struct virgl_texture *virgl_texture(struct pipe_resource *r)
    100 {
    101    return (struct virgl_texture *)r;
    102 }
    103 
    104 static inline struct virgl_transfer *virgl_transfer(struct pipe_transfer *trans)
    105 {
    106    return (struct virgl_transfer *)trans;
    107 }
    108 
    109 struct pipe_resource *virgl_buffer_create(struct virgl_screen *vs,
    110                                           const struct pipe_resource *templ);
    111 
    112 static inline unsigned pipe_to_virgl_bind(unsigned pbind)
    113 {
    114    unsigned outbind = 0;
    115    if (pbind & PIPE_BIND_DEPTH_STENCIL)
    116       outbind |= VIRGL_BIND_DEPTH_STENCIL;
    117    if (pbind & PIPE_BIND_RENDER_TARGET)
    118       outbind |= VIRGL_BIND_RENDER_TARGET;
    119    if (pbind & PIPE_BIND_SAMPLER_VIEW)
    120       outbind |= VIRGL_BIND_SAMPLER_VIEW;
    121    if (pbind & PIPE_BIND_VERTEX_BUFFER)
    122       outbind |= VIRGL_BIND_VERTEX_BUFFER;
    123    if (pbind & PIPE_BIND_INDEX_BUFFER)
    124       outbind |= VIRGL_BIND_INDEX_BUFFER;
    125    if (pbind & PIPE_BIND_CONSTANT_BUFFER)
    126       outbind |= VIRGL_BIND_CONSTANT_BUFFER;
    127    if (pbind & PIPE_BIND_DISPLAY_TARGET)
    128       outbind |= VIRGL_BIND_DISPLAY_TARGET;
    129    if (pbind & PIPE_BIND_STREAM_OUTPUT)
    130       outbind |= VIRGL_BIND_STREAM_OUTPUT;
    131    if (pbind & PIPE_BIND_CURSOR)
    132       outbind |= VIRGL_BIND_CURSOR;
    133    if (pbind & PIPE_BIND_CUSTOM)
    134       outbind |= VIRGL_BIND_CUSTOM;
    135    if (pbind & PIPE_BIND_SCANOUT)
    136       outbind |= VIRGL_BIND_SCANOUT;
    137    return outbind;
    138 }
    139 
    140 bool virgl_res_needs_flush_wait(struct virgl_context *vctx,
    141                                 struct virgl_resource *res,
    142                                 unsigned usage);
    143 bool virgl_res_needs_readback(struct virgl_context *vctx,
    144                               struct virgl_resource *res,
    145                               unsigned usage);
    146 #endif
    147