workbench/hidds/vmwaresvga/vmwaresvga_gallium_surf.c

   1 /*
   2     Copyright 2019, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <aros/debug.h>
   7
   8 #include <proto/exec.h>
   9 #include <proto/graphics.h>
  10 #include <proto/utility.h>
  11 #include <proto/oop.h>
  12
  13 #include <aros/libcall.h>
  14 #include <aros/asmcall.h>
  15 #include <aros/symbolsets.h>
  16 #include <utility/tagitem.h>
  17
  18 #include <hidd/gallium.h>
  19 #include <gallium/gallium.h>
  20
  21 #include "vmwaresvga_intern.h"
  22
  23 void *
  24 VMWareSVGA_WSSurf_SurfaceMap(struct svga_winsys_context *swc,
  25                             struct svga_winsys_surface *srf,
  26                             unsigned flags, boolean *retry)
  27 {
  28     struct HIDDGalliumVMWareSVGASurf *surface = VMWareSVGA_WSSurf_HiddSurfFromWinSysSurf(srf);
  29     void *data = (void *)((struct VMWareSVGAPBBuf *)(surface->surfbuf))->map;
  30
  31     D(bug("[VMWareSVGA:Gallium] %s(0x%p, 0x%p)\n", __func__, swc, surface));
  32     D(bug("[VMWareSVGA:Gallium] %s: returning 0x%p\n", __func__, data));
  33
  34     return data;
  35 }
  36
  37
  38 void
  39 VMWareSVGA_WSSurf_SurfaceUnMap(struct svga_winsys_context *swc,
  40                               struct svga_winsys_surface *srf,
  41                               boolean *rebind)
  42 {
  43    struct HIDDGalliumVMWareSVGASurf *surface = VMWareSVGA_WSSurf_HiddSurfFromWinSysSurf(srf);
  44
  45     D(bug("[VMWareSVGA:Gallium] %s(0x%p, 0x%p)\n", __func__, swc, surface));
  46 }
  47
  48 enum pipe_error
  49 VMWareSVGA_WSSurf_SurfaceInvalidate(struct svga_winsys_context *swc,
  50                                    struct svga_winsys_surface *surf)
  51 {
  52     D(bug("[VMWareSVGA:Gallium] %s(0x%p)\n", __func__, swc));
  53
  54    /* this is a noop since surface invalidation is not needed for DMA path.
  55     * DMA is enabled when guest-backed surface is not enabled or
  56     * guest-backed dma is enabled.  Since guest-backed dma is enabled
  57     * when guest-backed surface is enabled, that implies DMA is always enabled;
  58     * hence, surface invalidation is not needed.
  59     */
  60    return PIPE_OK;
  61 }
  62
  63 void
  64 VMWareSVGA_WSSurf_SurfaceReference(struct HIDDGalliumVMWareSVGASurf **pdst,
  65                                   struct HIDDGalliumVMWareSVGASurf *src)
  66 {
  67     struct pipe_reference *src_ref;
  68     struct pipe_reference *dst_ref;
  69     struct HIDDGalliumVMWareSVGASurf *dst;
  70
  71     D(bug("[VMWareSVGA:Gallium] %s(0x%p, 0x%p)\n", __func__, pdst, src));
  72
  73     if(pdst == NULL || *pdst == src)
  74         return;
  75
  76     dst = *pdst;
  77
  78     src_ref = src ? &src->refcnt : NULL;
  79     dst_ref = dst ? &dst->refcnt : NULL;
  80
  81     if (pipe_reference(dst_ref, src_ref)) {
  82 #if (0)
  83         if (dst->buf)
  84             VMWareSVGA_WSSurf_buffer_destroy(&dst->screen->base, dst->buf);
  85 #endif
  86         FREE(dst);
  87     }
  88
  89     *pdst = src;
  90 }