Initial revision

1 files changed, 121 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_span.c b/src/mesa/drivers/dri/nouveau/nouveau_span.c
new file mode 100644
index 0000000000..f990a8907e
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nouveau_span.c
@@ -0,0 +1,121 @@
+/**************************************************************************
+
+Copyright 2006 Stephane Marchesin
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+on the rights to use, copy, modify, merge, publish, distribute, sub
+license, and/or sell copies of the Software, and to permit persons to whom
+the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ERIC ANHOLT OR SILICON INTEGRATED SYSTEMS CORP BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+**************************************************************************/
+
+
+#include "nouveau_context.h"
+#include "nouveau_span.h"
+#include "nouveau_fifo.h"
+
+#include "swrast/swrast.h"
+
+#define HAVE_HW_DEPTH_SPANS	0
+#define HAVE_HW_DEPTH_PIXELS	0
+#define HAVE_HW_STENCIL_SPANS	0
+#define HAVE_HW_STENCIL_PIXELS	0
+
+#define LOCAL_VARS							\
+   nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);			\
+   __DRIscreenPrivate *sPriv = nmesa->driScreen;			\
+   __DRIdrawablePrivate *dPriv = nmesa->driDrawable;			\
+   driRenderbuffer *drb = (driRenderbuffer *) rb;			\
+   GLuint height = dPriv->h;						\
+   GLuint p;								\
+   (void) p;
+
+#define Y_FLIP( _y )            (height - _y - 1)
+
+#define HW_LOCK()
+
+#define HW_UNLOCK()
+
+
+
+/* ================================================================
+ * Color buffers
+ */
+
+/* RGB565 */ 
+#define SPANTMP_PIXEL_FMT GL_RGB
+#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5
+
+#define TAG(x)    nouveau##x##_RGB565
+#define TAG2(x,y) nouveau##x##_RGB565##y
+#define GET_PTR(X,Y) (sPriv->pFB + drb->flippedOffset		\
+     + ((dPriv->y + (Y)) * drb->flippedPitch + (dPriv->x + (X))) * drb->cpp)
+#include "spantmp2.h"
+
+
+/* ARGB8888 */
+#define SPANTMP_PIXEL_FMT GL_BGRA
+#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
+
+#define TAG(x)    nouveau##x##_ARGB8888
+#define TAG2(x,y) nouveau##x##_ARGB8888##y
+#define GET_PTR(X,Y) (sPriv->pFB + drb->flippedOffset		\
+     + ((dPriv->y + (Y)) * drb->flippedPitch + (dPriv->x + (X))) * drb->cpp)
+#include "spantmp2.h"
+
+static void
+nouveauSpanRenderStart( GLcontext *ctx )
+{
+   nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+   FIRE_RING();
+   LOCK_HARDWARE(nmesa);
+   nouveauWaitForIdleLocked( nmesa );
+}
+
+static void
+nouveauSpanRenderFinish( GLcontext *ctx )
+{
+   nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+   _swrast_flush( ctx );
+   nouveauWaitForIdleLocked( nmesa );
+   UNLOCK_HARDWARE( nmesa );
+}
+
+void nouveauSpanInitFunctions( GLcontext *ctx )
+{
+   struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
+   swdd->SpanRenderStart	= nouveauSpanRenderStart;
+   swdd->SpanRenderFinish	= nouveauSpanRenderFinish;
+}
+
+
+/**
+ * Plug in the Get/Put routines for the given driRenderbuffer.
+ */
+void
+nouveauSpanSetFunctions(driRenderbuffer *drb, const GLvisual *vis)
+{
+   if (drb->Base.InternalFormat == GL_RGBA) {
+      if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) {
+         nouveauInitPointers_RGB565(&drb->Base);
+      }
+      else {
+         nouveauInitPointers_ARGB8888(&drb->Base);
+      }
+   }
+}