va/x11/dri1_util.c

   1 #include <stdlib.h>
   2 #include <fcntl.h>
   3 #include <unistd.h>
   4 #include <sys/mman.h>
   5 #include <assert.h>
   6
   7 #include <xf86drm.h>
   8
   9 #include "X11/Xlib.h"
  10 #include "va.h"
  11 #include "va_backend.h"
  12
  13 #include "va_dri.h"
  14 #include "va_dricommon.h"
  15
  16 struct dri1_drawable
  17 {
  18     struct dri_drawable base;
  19     union dri_buffer buffer;
  20     int width;
  21     int height;
  22 };
  23
  24 static struct dri_drawable *
  25 dri1CreateDrawable(VADriverContextP ctx, XID x_drawable)
  26 {
  27     struct dri1_drawable *dri1_drawable;
  28
  29     dri1_drawable = calloc(1, sizeof(*dri1_drawable));
  30
  31     if (!dri1_drawable)
  32         return NULL;
  33
  34     dri1_drawable->base.x_drawable = x_drawable;
  35
  36     return &dri1_drawable->base;
  37 }
  38
  39 static void
  40 dri1DestroyDrawable(VADriverContextP ctx, struct dri_drawable *dri_drawable)
  41 {
  42     free(dri_drawable);
  43 }
  44
  45 static void
  46 dri1SwapBuffer(VADriverContextP ctx, struct dri_drawable *dri_drawable)
  47 {
  48
  49 }
  50
  51 static union dri_buffer *
  52 dri1GetRenderingBuffer(VADriverContextP ctx, struct dri_drawable *dri_drawable)
  53 {
  54     struct dri1_drawable *dri1_drawable = (struct dri1_drawable *)dri_drawable;
  55
  56     return &dri1_drawable->buffer;
  57 }
  58
  59 static void
  60 dri1Close(VADriverContextP ctx)
  61 {
  62     struct dri_state *dri_state = (struct dri_state *)ctx->dri_state;
  63
  64     free_drawable_hashtable(ctx);
  65     VA_DRIDestroyContext((Display *)ctx->native_dpy, ctx->x11_screen, dri_state->hwContextID);
  66     assert(dri_state->pSAREA != MAP_FAILED);
  67     drmUnmap(dri_state->pSAREA, SAREA_MAX);
  68     assert(dri_state->fd >= 0);
  69     drmCloseOnce(dri_state->fd);
  70     VA_DRICloseConnection((Display *)ctx->native_dpy, ctx->x11_screen);
  71 }
  72
  73 Bool
  74 isDRI1Connected(VADriverContextP ctx, char **driver_name)
  75 {
  76     struct dri_state *dri_state = (struct dri_state *)ctx->dri_state;
  77     int direct_capable;
  78     int driver_major;
  79     int driver_minor;
  80     int driver_patch;
  81     int newlyopened;
  82     char *BusID;
  83     drm_magic_t magic;
  84
  85     *driver_name = NULL;
  86     dri_state->fd = -1;
  87     dri_state->pSAREA = MAP_FAILED;
  88     dri_state->driConnectedFlag = VA_NONE;
  89
  90     if (!VA_DRIQueryDirectRenderingCapable((Display *)ctx->native_dpy,
  91                                            ctx->x11_screen,
  92                                            &direct_capable))
  93         goto err_out0;
  94
  95     if (!direct_capable)
  96         goto err_out0;
  97
  98     if (!VA_DRIGetClientDriverName((Display *)ctx->native_dpy, ctx->x11_screen,
  99                                    &driver_major, &driver_minor,
 100                                    &driver_patch, driver_name))
 101         goto err_out0;
 102
 103     if (!VA_DRIOpenConnection((Display *)ctx->native_dpy, ctx->x11_screen,
 104                               &dri_state->hSAREA, &BusID))
 105         goto err_out0;
 106
 107
 108     dri_state->fd = drmOpenOnce(NULL, BusID, &newlyopened);
 109     XFree(BusID);
 110
 111     if (dri_state->fd < 0)
 112         goto err_out1;
 113
 114
 115     if (drmGetMagic(dri_state->fd, &magic))
 116         goto err_out1;
 117
 118     if (newlyopened && !VA_DRIAuthConnection((Display *)ctx->native_dpy, ctx->x11_screen, magic))
 119         goto err_out1;
 120
 121     if (drmMap(dri_state->fd, dri_state->hSAREA, SAREA_MAX, &dri_state->pSAREA))
 122         goto err_out1;
 123
 124     if (!VA_DRICreateContext((Display *)ctx->native_dpy, ctx->x11_screen,
 125                              DefaultVisual((Display *)ctx->native_dpy, ctx->x11_screen),
 126                              &dri_state->hwContextID, &dri_state->hwContext))
 127         goto err_out1;
 128
 129     dri_state->driConnectedFlag = VA_DRI1;
 130     dri_state->createDrawable = dri1CreateDrawable;
 131     dri_state->destroyDrawable = dri1DestroyDrawable;
 132     dri_state->swapBuffer = dri1SwapBuffer;
 133     dri_state->getRenderingBuffer = dri1GetRenderingBuffer;
 134     dri_state->close = dri1Close;
 135
 136     return True;
 137
 138 err_out1:
 139     if (dri_state->pSAREA != MAP_FAILED)
 140         drmUnmap(dri_state->pSAREA, SAREA_MAX);
 141
 142     if (dri_state->fd >= 0)
 143         drmCloseOnce(dri_state->fd);
 144
 145     VA_DRICloseConnection((Display *)ctx->native_dpy, ctx->x11_screen);
 146
 147 err_out0:
 148     if (*driver_name)
 149         XFree(*driver_name);
 150
 151     dri_state->pSAREA = MAP_FAILED;
 152     dri_state->fd = -1;
 153     *driver_name = NULL;
 154
 155     return False;
 156 }
 157