dri/nouveau: Use event driven buffer validation.

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_context.c b/src/mesa/drivers/dri/nouveau/nouveau_context.c
index b87b8dbdd0217bacdd5aca53e2071daed53e2803..6117f68bcf76938c91bca51d767e2697c16c0529 100644 (file)
--- a/src/mesa/drivers/dri/nouveau/nouveau_context.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_context.c
@@ -140,6 +140,8 @@ nouveau_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable,
        __DRIbuffer *buffers = NULL;
        int i = 0, count, ret;
 
+       *stamp = *drawable->pStamp;
+
        attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
        if (fb->Visual.doubleBufferMode)
                attachments[i++] = __DRI_BUFFER_BACK_LEFT;
@@ -218,10 +220,11 @@ nouveau_context_make_current(__DRIcontext *dri_ctx, __DRIdrawable *dri_draw,
                struct nouveau_context *nctx = dri_ctx->driverPrivate;
                GLcontext *ctx = &nctx->base;
 
-               if (nctx->screen->context != nctx) {
-                       nctx->screen->context = nctx;
-                       BITSET_ONES(nctx->dirty);
-               }
+               if (nctx->screen->context == nctx)
+                       return GL_TRUE;
+
+               nctx->screen->context = nctx;
+               BITSET_ONES(nctx->dirty);
 
                /* Ask the X server for new renderbuffers. */
                nouveau_update_renderbuffers(dri_ctx, dri_draw,
@@ -267,6 +270,28 @@ void
 nouveau_validate_framebuffer(GLcontext *ctx)
 {
        struct nouveau_context *nctx = to_nouveau_context(ctx);
+       __DRIcontext *dri_ctx = to_nouveau_context(ctx)->dri_context;
+       __DRIdrawable *dri_draw = dri_ctx->driDrawablePriv;
+       __DRIdrawable *dri_read = dri_ctx->driReadablePriv;
+
+       if ((ctx->DrawBuffer->Name == 0 &&
+            nctx->drawable.d_stamp != *dri_draw->pStamp) ||
+           (dri_draw != dri_read &&
+            ctx->ReadBuffer->Name == 0 &&
+            nctx->drawable.r_stamp != *dri_read->pStamp)) {
+               if (nctx->drawable.dirty)
+                       ctx->Driver.Flush(ctx);
+
+               /* Ask the X server for new renderbuffers. */
+               nouveau_update_renderbuffers(dri_ctx, dri_draw,
+                                            &nctx->drawable.d_stamp);
+               if (dri_draw != dri_read)
+                       nouveau_update_renderbuffers(dri_ctx, dri_read,
+                                                    &nctx->drawable.r_stamp);
+
+               if (nouveau_next_dirty_state(ctx) >= 0)
+                       FIRE_RING(context_chan(ctx));
+       }
 
        /* Someone's planning to draw something really soon. */
        nctx->drawable.dirty = GL_TRUE;

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_screen.c b/src/mesa/drivers/dri/nouveau/nouveau_screen.c
index 6abab8c9656bdce4d281e313883811c152bc128b..3f9f3a3567a8db4a8e46b475cf4a8102fc862110 100644 (file)
--- a/src/mesa/drivers/dri/nouveau/nouveau_screen.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_screen.c
@@ -247,7 +247,19 @@ nouveau_destroy_buffer(__DRIdrawable *drawable)
                (struct gl_framebuffer **)&drawable->driverPrivate, NULL);
 }
 
+static void
+nouveau_drawable_flush(__DRIdrawable *draw)
+{
+}
+
+static const struct __DRI2flushExtensionRec nouveau_flush_extension = {
+    { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
+    nouveau_drawable_flush,
+    dri2InvalidateDrawable,
+};
+
 static const __DRIextension *nouveau_screen_extensions[] = {
+    &nouveau_flush_extension.base,
     NULL
 };