src/driclient/include/driclient.h

   1 #ifndef driclient_h
   2 #define driclient_h
   3
   4 #include <stdint.h>
   5 #include <X11/Xlib.h>
   6 #include <drm_sarea.h>
   7 #include "xf86dri.h"
   8
   9 /* TODO: Bring in DRI XML options */
  10
  11 typedef struct dri_version
  12 {
  13         int major;
  14         int minor;
  15         int patch;
  16 } dri_version_t;
  17
  18 typedef struct dri_screen
  19 {
  20         Display                 *display;
  21         unsigned int            num;
  22         dri_version_t           ddx, dri, drm;
  23         int                     draw_lock_id;
  24         int                     fd;
  25         drm_sarea_t             *sarea;
  26         void                    *drawable_hash;
  27         void                    *private;
  28 } dri_screen_t;
  29
  30 struct dri_context;
  31
  32 typedef struct dri_drawable
  33 {
  34         drm_drawable_t          drm_drawable;
  35         Drawable                x_drawable;
  36         unsigned int            sarea_index;
  37         unsigned int            *sarea_stamp;
  38         unsigned int            last_sarea_stamp;
  39         int                     x, y, w, h;
  40         int                     back_x, back_y;
  41         int                     num_cliprects, num_back_cliprects;
  42         drm_clip_rect_t         *cliprects, *back_cliprects;
  43         dri_screen_t            *dri_screen;
  44         unsigned int            refcount;
  45         void                    *private;
  46 } dri_drawable_t;
  47
  48 typedef struct dri_context
  49 {
  50         XID                     id;
  51         drm_context_t           drm_context;
  52         dri_screen_t            *dri_screen;
  53         void                    *private;
  54 } dri_context_t;
  55
  56 typedef struct dri_framebuffer
  57 {
  58         drm_handle_t            drm_handle;
  59         int                     base, size, stride;
  60         int                     private_size;
  61         void                    *private;
  62 } dri_framebuffer_t;
  63
  64 int driCreateScreen(Display *display, int screen, dri_screen_t **dri_screen, dri_framebuffer_t *dri_framebuf);
  65 int driDestroyScreen(dri_screen_t *dri_screen);
  66 int driCreateDrawable(dri_screen_t *dri_screen, Drawable drawable, dri_drawable_t **dri_drawable);
  67 int driUpdateDrawableInfo(dri_drawable_t *dri_drawable);
  68 int driDestroyDrawable(dri_drawable_t *dri_drawable);
  69 int driCreateContext(dri_screen_t *dri_screen, Visual *visual, dri_context_t **dri_context);
  70 int driDestroyContext(dri_context_t *dri_context);
  71
  72 #define DRI_VALIDATE_DRAWABLE_INFO_ONCE(dri_drawable)                                   \
  73 do                                                                                      \
  74 {                                                                                       \
  75         if (*(dri_drawable->sarea_stamp) != dri_drawable->last_sarea_stamp)             \
  76                 driUpdateDrawableInfo(dri_drawable);                                    \
  77 } while (0)
  78
  79 #define DRI_VALIDATE_DRAWABLE_INFO(dri_screen, dri_drawable)                                    \
  80 do                                                                                              \
  81 {                                                                                               \
  82         while (*(dri_drawable->sarea_stamp) != dri_drawable->last_sarea_stamp)                  \
  83         {                                                                                       \
  84                 register unsigned int hwContext = dri_screen->sarea->lock.lock &                \
  85                 ~(DRM_LOCK_HELD | DRM_LOCK_CONT);                                               \
  86                 DRM_UNLOCK(dri_screen->fd, &dri_screen->sarea->lock, hwContext);                \
  87                                                                                                 \
  88                 DRM_SPINLOCK(&dri_screen->sarea->drawable_lock, dri_screen->draw_lock_id);      \
  89                 DRI_VALIDATE_DRAWABLE_INFO_ONCE(dri_drawable);                                  \
  90                 DRM_SPINUNLOCK(&dri_screen->sarea->drawable_lock, dri_screen->draw_lock_id);    \
  91                                                                                                 \
  92                 DRM_LIGHT_LOCK(dri_screen->fd, &dri_screen->sarea->lock, hwContext);            \
  93         }                                                                                       \
  94 } while (0)
  95
  96 #endif
  97