rom/graphics/compositing_driver.c

   1 #include <aros/debug.h>
   2 #include <graphics/driver.h>
   3 #include <hidd/compositing.h>
   4 #include <oop/oop.h>
   5
   6 #include <proto/oop.h>
   7
   8 #include "graphics_intern.h"
   9 #include "compositing_driver.h"
  10
  11 ULONG composer_Install(OOP_Class *cl, struct GfxBase *GfxBase)
  12 {
  13     struct monitor_driverdata *mdd;
  14
  15     D(bug("[Composer] Installing class 0x%p\n", cl));
  16
  17     /*
  18      * Completely lazy initialization.
  19      * It even can't be done in other way because OOP_GetMethodID() on an unregistered
  20      * interface will fail (unlike OOP_ObtainAttrBase).
  21      */
  22     if (!HiddCompositingAttrBase)
  23         HiddCompositingAttrBase = OOP_ObtainAttrBase(IID_Hidd_Compositing);
  24
  25     if (!HiddCompositingAttrBase)
  26         return DD_NO_MEM;
  27
  28     if (!PrivGBase(GfxBase)->HiddCompositingMethodBase)
  29     {
  30         PrivGBase(GfxBase)->HiddCompositingMethodBase = OOP_GetMethodID(IID_Hidd_Compositing, 0);
  31
  32         if (!PrivGBase(GfxBase)->HiddCompositingMethodBase)
  33         {
  34             OOP_ReleaseAttrBase(IID_Hidd_Compositing);
  35
  36             return DD_NO_MEM;
  37         }
  38     }
  39
  40     CDD(GfxBase)->composerClass = cl;
  41
  42     for (mdd = CDD(GfxBase)->monitors; mdd; mdd = mdd->next)
  43     {
  44         /* If the driver needs software composer, but has no one, instantiate it. */
  45         if ((mdd->flags & DF_SoftCompose) && (!mdd->composer))
  46         {
  47             composer_Setup(mdd, GfxBase);
  48         }
  49     }
  50
  51     return DD_OK;
  52 }
  53
  54 void composer_Setup(struct monitor_driverdata *mdd, struct GfxBase *GfxBase)
  55 {
  56     /*
  57      * Note that if we have fakegfx object, we'll actually work on top of it.
  58      * This allows us to have transparent software mouse pointer support.
  59      */
  60     mdd->composer = OOP_NewObjectTags(CDD(GfxBase)->composerClass, NULL,
  61                                       aHidd_Compositing_GfxHidd, mdd->gfxhidd,
  62                                       aHidd_Compositing_FrameBuffer, mdd->framebuffer, TAG_DONE);
  63
  64     /* ... but print name of the original driver, to be informative */
  65     D(bug("[Composer] Added compositing object 0x%p to driver 0x%p (%s)\n", mdd->composer, mdd->gfxhidd,
  66           OOP_OCLASS(mdd->gfxhidd_orig)->ClassNode.ln_Name));
  67 }