diff options
Diffstat (limited to 'src/mesa/drivers/dri/swrast')
| -rw-r--r-- | src/mesa/drivers/dri/swrast/swrast.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/swrast/swrast.c b/src/mesa/drivers/dri/swrast/swrast.c index 0e1c530..7eed5a4 100644 --- a/src/mesa/drivers/dri/swrast/swrast.c +++ b/src/mesa/drivers/dri/swrast/swrast.c @@ -820,6 +820,39 @@ dri_unbind_context(__DRIcontext * cPriv) return GL_TRUE; } +static void +dri_copy_sub_buffer(__DRIdrawable *dPriv, int x, int y, + int w, int h) +{ + __DRIscreen *sPriv = dPriv->driScreenPriv; + void *data; + int iy; + struct dri_drawable *drawable = dri_drawable(dPriv); + struct gl_framebuffer *fb; + struct dri_swrast_renderbuffer *frontrb, *backrb; + + TRACE; + + fb = &drawable->Base; + + frontrb = + dri_swrast_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer); + backrb = + dri_swrast_renderbuffer(fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer); + + /* check for signle-buffered */ + if (backrb == NULL) + return; + + iy = frontrb->Base.Base.Height - y - h; + data = (char *)backrb->Base.Buffer + (iy * backrb->pitch) + (x * ((backrb->bpp + 7) / 8)); + sPriv->swrast_loader->putImage2(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP, + x, iy, w, h, + frontrb->pitch, + data, + dPriv->loaderPrivate); +} + static const struct __DriverAPIRec swrast_driver_api = { .InitScreen = dri_init_screen, @@ -831,6 +864,7 @@ static const struct __DriverAPIRec swrast_driver_api = { .SwapBuffers = dri_swap_buffers, .MakeCurrent = dri_make_current, .UnbindContext = dri_unbind_context, + .CopySubBuffer = dri_copy_sub_buffer, }; static const struct __DRIDriverVtableExtensionRec swrast_vtable = { @@ -841,6 +875,7 @@ static const struct __DRIDriverVtableExtensionRec swrast_vtable = { static const __DRIextension *swrast_driver_extensions[] = { &driCoreExtension.base, &driSWRastExtension.base, + &driCopySubBufferExtension.base, &swrast_vtable.base, NULL }; |