Merge branch 'mesa_7_6_branch' of git+ssh://agd5f@git.freedesktop.org/git/mesa/mesa
[mesa.git] / src / mesa / drivers / dri / common / dri_util.h
index 027cb7f461ef6a786cd61d978e08fcb1294f9943..c95a5c8299a11c672527137bea9f78b4bbea3cf6 100644 (file)
 #define _DRI_UTIL_H_
 
 #include <GL/gl.h>
-#include "drm.h"
-#include "drm_sarea.h"
-#include "xf86drm.h"
+#include <drm.h>
+#include <drm_sarea.h>
+#include <xf86drm.h>
+#include "main/glheader.h"
 #include "GL/internal/glcore.h"
 #include "GL/internal/dri_interface.h"
 
 #define GLX_BAD_CONTEXT                    5
 
-typedef struct __DRIdisplayPrivateRec  __DRIdisplayPrivate;
-typedef struct __DRIscreenPrivateRec   __DRIscreenPrivate;
-typedef struct __DRIcontextPrivateRec  __DRIcontextPrivate;
-typedef struct __DRIdrawablePrivateRec __DRIdrawablePrivate;
 typedef struct __DRIswapInfoRec        __DRIswapInfo;
-typedef struct __DRIutilversionRec2    __DRIutilversion2;
 
+/* Typedefs to avoid rewriting the world. */
+typedef struct __DRIscreenRec  __DRIscreenPrivate;
+typedef struct __DRIdrawableRec        __DRIdrawablePrivate;
+typedef struct __DRIcontextRec __DRIcontextPrivate;
+
+/**
+ * Extensions.
+ */
+extern const __DRIlegacyExtension driLegacyExtension;
+extern const __DRIcoreExtension driCoreExtension;
+extern const __DRIextension driReadDrawableExtension;
+extern const __DRIcopySubBufferExtension driCopySubBufferExtension;
+extern const __DRIswapControlExtension driSwapControlExtension;
+extern const __DRIframeTrackingExtension driFrameTrackingExtension;
+extern const __DRImediaStreamCounterExtension driMediaStreamCounterExtension;
 
 /**
  * Used by DRI_VALIDATE_DRAWABLE_INFO
@@ -78,7 +89,7 @@ typedef struct __DRIutilversionRec2    __DRIutilversion2;
 /**
  * Utility macro to validate the drawable information.
  *
- * See __DRIdrawablePrivate::pStamp and __DRIdrawablePrivate::lastStamp.
+ * See __DRIdrawable::pStamp and __DRIdrawable::lastStamp.
  */
 #define DRI_VALIDATE_DRAWABLE_INFO(psp, pdp)                            \
 do {                                                                    \
@@ -95,6 +106,28 @@ do {                                                                    \
     }                                                                   \
 } while (0)
 
+/**
+ * Same as above, but for two drawables simultaneously.
+ *
+ */
+
+#define DRI_VALIDATE_TWO_DRAWABLES_INFO(psp, pdp, prp)                 \
+do {                                                           \
+    while (*((pdp)->pStamp) != (pdp)->lastStamp ||                     \
+          *((prp)->pStamp) != (prp)->lastStamp) {                      \
+        register unsigned int hwContext = (psp)->pSAREA->lock.lock &   \
+           ~(DRM_LOCK_HELD | DRM_LOCK_CONT);                           \
+       DRM_UNLOCK((psp)->fd, &(psp)->pSAREA->lock, hwContext);         \
+                                                                       \
+       DRM_SPINLOCK(&(psp)->pSAREA->drawable_lock, (psp)->drawLockID); \
+       DRI_VALIDATE_DRAWABLE_INFO_ONCE(pdp);                           \
+       DRI_VALIDATE_DRAWABLE_INFO_ONCE(prp);                           \
+       DRM_SPINUNLOCK(&(psp)->pSAREA->drawable_lock, (psp)->drawLockID); \
+                                                                       \
+       DRM_LIGHT_LOCK((psp)->fd, &(psp)->pSAREA->lock, hwContext);     \
+    }                                                                   \
+} while (0)
+
 
 /**
  * Driver callback functions.
@@ -107,100 +140,101 @@ do {                                                                    \
  * this structure.
  */
 struct __DriverAPIRec {
-    /** 
-     * Driver initialization callback
-     */
-    GLboolean (*InitDriver)(__DRIscreenPrivate *driScrnPriv);
-    
+    const __DRIconfig **(*InitScreen) (__DRIscreen * priv);
+
     /**
      * Screen destruction callback
      */
-    void (*DestroyScreen)(__DRIscreenPrivate *driScrnPriv);
+    void (*DestroyScreen)(__DRIscreen *driScrnPriv);
 
     /**
      * Context creation callback
      */                    
     GLboolean (*CreateContext)(const __GLcontextModes *glVis,
-                               __DRIcontextPrivate *driContextPriv,
+                               __DRIcontext *driContextPriv,
                                void *sharedContextPrivate);
 
     /**
      * Context destruction callback
      */
-    void (*DestroyContext)(__DRIcontextPrivate *driContextPriv);
+    void (*DestroyContext)(__DRIcontext *driContextPriv);
 
     /**
      * Buffer (drawable) creation callback
      */
-    GLboolean (*CreateBuffer)(__DRIscreenPrivate *driScrnPriv,
-                              __DRIdrawablePrivate *driDrawPriv,
+    GLboolean (*CreateBuffer)(__DRIscreen *driScrnPriv,
+                              __DRIdrawable *driDrawPriv,
                               const __GLcontextModes *glVis,
                               GLboolean pixmapBuffer);
     
     /**
      * Buffer (drawable) destruction callback
      */
-    void (*DestroyBuffer)(__DRIdrawablePrivate *driDrawPriv);
+    void (*DestroyBuffer)(__DRIdrawable *driDrawPriv);
 
     /**
      * Buffer swapping callback 
      */
-    void (*SwapBuffers)(__DRIdrawablePrivate *driDrawPriv);
+    void (*SwapBuffers)(__DRIdrawable *driDrawPriv);
 
     /**
      * Context activation callback
      */
-    GLboolean (*MakeCurrent)(__DRIcontextPrivate *driContextPriv,
-                             __DRIdrawablePrivate *driDrawPriv,
-                             __DRIdrawablePrivate *driReadPriv);
+    GLboolean (*MakeCurrent)(__DRIcontext *driContextPriv,
+                             __DRIdrawable *driDrawPriv,
+                             __DRIdrawable *driReadPriv);
 
     /**
      * Context unbinding callback
      */
-    GLboolean (*UnbindContext)(__DRIcontextPrivate *driContextPriv);
+    GLboolean (*UnbindContext)(__DRIcontext *driContextPriv);
   
     /**
      * Retrieves statistics about buffer swap operations.  Required if
      * GLX_OML_sync_control or GLX_MESA_swap_frame_usage is supported.
      */
-    int (*GetSwapInfo)( __DRIdrawablePrivate *dPriv, __DRIswapInfo * sInfo );
-
+    int (*GetSwapInfo)( __DRIdrawable *dPriv, __DRIswapInfo * sInfo );
 
-    /**
-     * Required if GLX_SGI_video_sync or GLX_OML_sync_control is
-     * supported.
-     */
-    int (*GetMSC)( __DRIscreenPrivate * priv, int64_t * count );
 
     /**
      * These are required if GLX_OML_sync_control is supported.
      */
     /*@{*/
-    int (*WaitForMSC)( __DRIdrawablePrivate *priv, int64_t target_msc, 
+    int (*WaitForMSC)( __DRIdrawable *priv, int64_t target_msc, 
                       int64_t divisor, int64_t remainder,
                       int64_t * msc );
-    int (*WaitForSBC)( __DRIdrawablePrivate *priv, int64_t target_sbc,
+    int (*WaitForSBC)( __DRIdrawable *priv, int64_t target_sbc,
                       int64_t * msc, int64_t * sbc );
 
-    int64_t (*SwapBuffersMSC)( __DRIdrawablePrivate *priv, int64_t target_msc,
+    int64_t (*SwapBuffersMSC)( __DRIdrawable *priv, int64_t target_msc,
                               int64_t divisor, int64_t remainder );
     /*@}*/
-    void (*CopySubBuffer)(__DRIdrawablePrivate *driDrawPriv,
+    void (*CopySubBuffer)(__DRIdrawable *driDrawPriv,
                          int x, int y, int w, int h);
 
     /**
-     * See corresponding field in \c __DRIscreenRec.
+     * New version of GetMSC so we can pass drawable data to the low
+     * level DRM driver (e.g. pipe info).  Required if
+     * GLX_SGI_video_sync or GLX_OML_sync_control is supported.
      */
-    void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname,
-                        unsigned long long offset, GLint depth, GLuint pitch);
+    int (*GetDrawableMSC) ( __DRIscreen * priv,
+                           __DRIdrawable *drawablePrivate,
+                           int64_t *count);
+
+
+
+    /* DRI2 Entry point */
+    const __DRIconfig **(*InitScreen2) (__DRIscreen * priv);
 };
 
+extern const struct __DriverAPIRec driDriverAPI;
+
 
 struct __DRIswapInfoRec {
     /** 
      * Number of swapBuffers operations that have been *completed*. 
      */
-    u_int64_t swap_count;
+    uint64_t swap_count;
 
     /**
      * Unadjusted system time of the last buffer swap.  This is the time
@@ -214,7 +248,7 @@ struct __DRIswapInfoRec {
      * swap, it has missed its deadline.  If swap_interval is 0, then the
      * swap deadline is 1 frame after the previous swap.
      */
-    u_int64_t swap_missed_count;
+    uint64_t swap_missed_count;
 
     /**
      * Amount of time used by the last swap that missed its deadline.  This
@@ -230,7 +264,7 @@ struct __DRIswapInfoRec {
 /**
  * Per-drawable private DRI driver information.
  */
-struct __DRIdrawablePrivateRec {
+struct __DRIdrawableRec {
     /**
      * Kernel drawable handle
      */
@@ -244,10 +278,10 @@ struct __DRIdrawablePrivateRec {
     void *driverPrivate;
 
     /**
-     * X's drawable ID associated with this private drawable.
+     * Private data from the loader.  We just hold on to it and pass
+     * it back when calling into loader provided functions.
      */
-    __DRIid draw;
-    __DRIdrawable *pdraw;
+    void *loaderPrivate;
 
     /**
      * Reference count for number of context's currently bound to this
@@ -272,7 +306,7 @@ struct __DRIdrawablePrivateRec {
     /**
      * Last value of the stamp.
      *
-     * If this differs from the value stored at __DRIdrawablePrivate::pStamp,
+     * If this differs from the value stored at __DRIdrawable::pStamp,
      * then the drawable information has been modified by the X server, and the
      * drawable information (below) should be retrieved from the X server.
      */
@@ -306,41 +340,52 @@ struct __DRIdrawablePrivateRec {
     /*@}*/
 
     /**
-     * Pointer to context to which this drawable is currently bound.
+     * \name Vertical blank tracking information
+     * Used for waiting on vertical blank events.
      */
-    __DRIcontextPrivate *driContextPriv;
+    /*@{*/
+    unsigned int vblSeq;
+    unsigned int vblFlags;
+    /*@}*/
 
     /**
-     * Pointer to screen on which this drawable was created.
+     * \name Monotonic MSC tracking
+     *
+     * Low level driver is responsible for updating msc_base and
+     * vblSeq values so that higher level code can calculate
+     * a new msc value or msc target for a WaitMSC call.  The new value
+     * will be:
+     *   msc = msc_base + get_vblank_count() - vblank_base;
+     *
+     * And for waiting on a value, core code will use:
+     *   actual_target = target_msc - msc_base + vblank_base;
      */
-    __DRIscreenPrivate *driScreenPriv;
+    /*@{*/
+    int64_t vblank_base;
+    int64_t msc_base;
+    /*@}*/
 
     /**
-     * \name Display and screen information.
-     * 
-     * Basically just need these for when the locking code needs to call
-     * \c __driUtilUpdateDrawableInfo.
+     * Pointer to context to which this drawable is currently bound.
      */
-    /*@{*/
-    __DRInativeDisplay *display;
-    int screen;
-    /*@}*/
+    __DRIcontext *driContextPriv;
+
+    /**
+     * Pointer to screen on which this drawable was created.
+     */
+    __DRIscreen *driScreenPriv;
 
     /**
-     * Called via glXSwapBuffers().
+     * Controls swap interval as used by GLX_SGI_swap_control and
+     * GLX_MESA_swap_control.
      */
-    void (*swapBuffers)( __DRIdrawablePrivate *dPriv );
+    unsigned int swap_interval;
 };
 
 /**
  * Per-context private driver information.
  */
-struct __DRIcontextPrivateRec {
-    /**
-     * Kernel context handle used to access the device lock.
-     */
-    __DRIid contextID;
-
+struct __DRIcontextRec {
     /**
      * Kernel context handle used to access the device lock.
      */
@@ -352,35 +397,30 @@ struct __DRIcontextPrivateRec {
     void *driverPrivate;
 
     /**
-     * This context's display pointer.
+     * Pointer back to the \c __DRIcontext that contains this structure.
      */
-    __DRInativeDisplay *display;
+    __DRIcontext *pctx;
 
     /**
      * Pointer to drawable currently bound to this context for drawing.
      */
-    __DRIdrawablePrivate *driDrawablePriv;
+    __DRIdrawable *driDrawablePriv;
 
     /**
      * Pointer to drawable currently bound to this context for reading.
      */
-    __DRIdrawablePrivate *driReadablePriv;
+    __DRIdrawable *driReadablePriv;
 
     /**
      * Pointer to screen on which this context was created.
      */
-    __DRIscreenPrivate *driScreenPriv;
+    __DRIscreen *driScreenPriv;
 };
 
 /**
  * Per-screen private driver information.
  */
-struct __DRIscreenPrivateRec {
-    /**
-     * Display for this screen
-     */
-    __DRInativeDisplay *display;
-
+struct __DRIscreenRec {
     /**
      * Current screen's number
      */
@@ -391,38 +431,21 @@ struct __DRIscreenPrivateRec {
      */
     struct __DriverAPIRec DriverAPI;
 
+    const __DRIextension **extensions;
     /**
-     * \name DDX version
      * DDX / 2D driver version information.
-     * \todo Replace these fields with a \c __DRIversionRec.
      */
-    /*@{*/
-    int ddxMajor;
-    int ddxMinor;
-    int ddxPatch;
-    /*@}*/
+    __DRIversion ddx_version;
 
     /**
-     * \name DRI version
      * DRI X extension version information.
-     * \todo Replace these fields with a \c __DRIversionRec.
      */
-    /*@{*/
-    int driMajor;
-    int driMinor;
-    int driPatch;
-    /*@}*/
+    __DRIversion dri_version;
 
     /**
-     * \name DRM version
      * DRM (kernel module) version information.
-     * \todo Replace these fields with a \c __DRIversionRec.
      */
-    /*@{*/
-    int drmMajor;
-    int drmMinor;
-    int drmPatch;
-    /*@}*/
+    __DRIversion drm_version;
 
     /**
      * ID used when the client sets the drawable lock.
@@ -485,12 +508,7 @@ struct __DRIscreenPrivateRec {
      * context is created when the first "real" context is created on this
      * screen.
      */
-    __DRIcontextPrivate dummyContextPriv;
-
-    /**
-     * Hash table to hold the drawable information for this screen.
-     */
-    void *drawHash;
+    __DRIcontext dummyContextPriv;
 
     /**
      * Device-dependent private information (not stored in the SAREA).
@@ -499,66 +517,39 @@ struct __DRIscreenPrivateRec {
      */
     void *private;
 
-    /**
-     * GLX visuals / FBConfigs for this screen.  These are stored as a
-     * linked list.
-     * 
-     * \note
-     * This field is \b only used in conjunction with the old interfaces.  If
-     * the new interfaces are used, this field will be set to \c NULL and will
-     * not be dereferenced.
-     */
-    __GLcontextModes *modes;
-
     /**
      * Pointer back to the \c __DRIscreen that contains this structure.
      */
-
     __DRIscreen *psc;
-};
 
+    /* Extensions provided by the loader. */
+    const __DRIgetDrawableInfoExtension *getDrawableInfo;
+    const __DRIsystemTimeExtension *systemTime;
+    const __DRIdamageExtension *damage;
 
-/**
- * Used to store a version which includes a major range instead of a single
- * major version number.
- */
-struct __DRIutilversionRec2 {
-    int    major_min;    /** min allowed Major version number. */
-    int    major_max;    /** max allowed Major version number. */
-    int    minor;        /**< Minor version number. */
-    int    patch;        /**< Patch-level. */
-};
+    struct {
+       /* Flag to indicate that this is a DRI2 screen.  Many of the above
+        * fields will not be valid or initializaed in that case. */
+       int enabled;
+       __DRIdri2LoaderExtension *loader;
+    } dri2;
 
+    /* The lock actually in use, old sarea or DRI2 */
+    drmLock *lock;
+};
 
 extern void
 __driUtilMessage(const char *f, ...);
 
 
 extern void
-__driUtilUpdateDrawableInfo(__DRIdrawablePrivate *pdp);
-
-
-extern __DRIscreenPrivate * __driUtilCreateNewScreen( __DRInativeDisplay *dpy,
-    int scrn, __DRIscreen *psc, __GLcontextModes * modes,
-    const __DRIversion * ddx_version, const __DRIversion * dri_version,
-    const __DRIversion * drm_version, const __DRIframebuffer * frame_buffer,
-    drm_sarea_t *pSAREA, int fd, int internal_api_version,
-    const struct __DriverAPIRec *driverAPI );
-
-/* Test the version of the internal GLX API.  Returns a value like strcmp. */
-extern int
-driCompareGLXAPIVersion( GLint required_version );
+__driUtilUpdateDrawableInfo(__DRIdrawable *pdp);
 
 extern float
-driCalculateSwapUsage( __DRIdrawablePrivate *dPriv,
+driCalculateSwapUsage( __DRIdrawable *dPriv,
                       int64_t last_swap_ust, int64_t current_ust );
 
-/**
- * Pointer to the \c __DRIinterfaceMethods passed to the driver by the loader.
- * 
- * This pointer is set in the driver's \c __driCreateNewScreen function and
- * is defined in dri_util.c.
- */
-extern const __DRIinterfaceMethods * dri_interface;
+extern GLint
+driIntersectArea( drm_clip_rect_t rect1, drm_clip_rect_t rect2 );
 
 #endif /* _DRI_UTIL_H_ */