src/gallium/drivers/virgl/virgl_screen.h

   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 #ifndef VIRGL_H
  24 #define VIRGL_H
  25
  26 #include "pipe/p_screen.h"
  27 #include "util/slab.h"
  28 #include "virgl_winsys.h"
  29
  30 enum virgl_debug_flags {
  31    VIRGL_DEBUG_VERBOSE              = 1 << 0,
  32    VIRGL_DEBUG_TGSI                 = 1 << 1,
  33    VIRGL_DEBUG_EMULATE_BGRA         = 1 << 2,
  34    VIRGL_DEBUG_BGRA_DEST_SWIZZLE    = 1 << 3,
  35    VIRGL_DEBUG_SYNC                 = 1 << 4,
  36    VIRGL_DEBUG_XFER                 = 1 << 5,
  37 };
  38
  39 extern int virgl_debug;
  40
  41 struct virgl_screen {
  42    struct pipe_screen base;
  43
  44    int refcnt;
  45
  46    /* place for winsys to stash it's own stuff: */
  47    void *winsys_priv;
  48
  49    struct virgl_winsys *vws;
  50
  51    struct virgl_drm_caps caps;
  52
  53    struct slab_parent_pool transfer_pool;
  54
  55    uint32_t sub_ctx_id;
  56    bool tweak_gles_emulate_bgra;
  57    bool tweak_gles_apply_bgra_dest_swizzle;
  58    int32_t tweak_gles_tf3_value;
  59 };
  60
  61
  62 static inline struct virgl_screen *
  63 virgl_screen(struct pipe_screen *pipe)
  64 {
  65    return (struct virgl_screen *)pipe;
  66 }
  67
  68 boolean
  69 virgl_has_readback_format(struct pipe_screen *screen, enum virgl_formats fmt);
  70
  71 /* GL_ARB_map_buffer_alignment requires 64 as the minimum alignment value.  In
  72  * addition to complying with the extension, a high enough alignment value is
  73  * expected by various external GL clients. For example, wined3d doesn't like
  74  * maps that don't have a 16 byte alignment.
  75  */
  76 #define VIRGL_MAP_BUFFER_ALIGNMENT 64
  77
  78 #endif