1 files changed, 332 insertions, 0 deletions
diff --git a/src/gallium/winsys/g3dvl/xlib/xsp_winsys.c b/src/gallium/winsys/g3dvl/xlib/xsp_winsys.c
new file mode 100644
index 0000000000..08067aad64
--- /dev/null
+++ b/src/gallium/winsys/g3dvl/xlib/xsp_winsys.c
@@ -0,0 +1,332 @@
+/**************************************************************************
+ * 
+ * Copyright 2009 Younes Manton.
+ * 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 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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 <vl_winsys.h>
+#include <X11/Xutil.h>
+#include <pipe/internal/p_winsys_screen.h>
+#include <pipe/p_state.h>
+#include <pipe/p_inlines.h>
+#include <util/u_memory.h>
+#include <util/u_math.h>
+#include <softpipe/sp_winsys.h>
+#include <softpipe/sp_video_context.h>
+#include <softpipe/sp_texture.h>
+
+/* pipe_winsys implementation */
+
+struct xsp_pipe_winsys
+{
+   struct pipe_winsys base;
+   Display *display;
+   int screen;
+   XImage *fbimage;
+};
+
+struct xsp_context
+{
+   Drawable drawable;
+
+   void (*pipe_destroy)(struct pipe_video_context *vpipe);
+};
+
+struct xsp_buffer
+{
+   struct pipe_buffer base;
+   boolean is_user_buffer;
+   void *data;
+   void *mapped_data;
+};
+
+static struct pipe_buffer* xsp_buffer_create(struct pipe_winsys *pws, unsigned alignment, unsigned usage, unsigned size)
+{
+   struct xsp_buffer *buffer;
+
+   assert(pws);
+
+   buffer = calloc(1, sizeof(struct xsp_buffer));
+   pipe_reference_init(&buffer->base.reference, 1);
+   buffer->base.alignment = alignment;
+   buffer->base.usage = usage;
+   buffer->base.size = size;
+   buffer->data = align_malloc(size, alignment);
+
+   return (struct pipe_buffer*)buffer;
+}
+
+static struct pipe_buffer* xsp_user_buffer_create(struct pipe_winsys *pws, void *data, unsigned size)
+{
+   struct xsp_buffer *buffer;
+
+   assert(pws);
+
+   buffer = calloc(1, sizeof(struct xsp_buffer));
+   pipe_reference_init(&buffer->base.reference, 1);
+   buffer->base.size = size;
+   buffer->is_user_buffer = TRUE;
+   buffer->data = data;
+
+   return (struct pipe_buffer*)buffer;
+}
+
+static void* xsp_buffer_map(struct pipe_winsys *pws, struct pipe_buffer *buffer, unsigned flags)
+{
+   struct xsp_buffer *xsp_buf = (struct xsp_buffer*)buffer;
+
+   assert(pws);
+   assert(buffer);
+
+   xsp_buf->mapped_data = xsp_buf->data;
+
+   return xsp_buf->mapped_data;
+}
+
+static void xsp_buffer_unmap(struct pipe_winsys *pws, struct pipe_buffer *buffer)
+{
+   struct xsp_buffer *xsp_buf = (struct xsp_buffer*)buffer;
+
+   assert(pws);
+   assert(buffer);
+
+   xsp_buf->mapped_data = NULL;
+}
+
+static void xsp_buffer_destroy(struct pipe_buffer *buffer)
+{
+   struct xsp_buffer *xsp_buf = (struct xsp_buffer*)buffer;
+
+   assert(buffer);
+
+   if (!xsp_buf->is_user_buffer)
+      align_free(xsp_buf->data);
+
+   free(xsp_buf);
+}
+
+static struct pipe_buffer* xsp_surface_buffer_create
+(
+   struct pipe_winsys *pws,
+   unsigned width,
+   unsigned height,
+   enum pipe_format format,
+   unsigned usage,
+   unsigned tex_usage,
+   unsigned *stride
+)
+{
+   const unsigned int ALIGNMENT = 1;
+   struct pipe_format_block block;
+   unsigned nblocksx, nblocksy;
+
+   pf_get_block(format, &block);
+   nblocksx = pf_get_nblocksx(&block, width);
+   nblocksy = pf_get_nblocksy(&block, height);
+   *stride = align(nblocksx * block.size, ALIGNMENT);
+
+   return pws->buffer_create(pws, ALIGNMENT, usage,
+                             *stride * nblocksy);
+}
+
+static void xsp_fence_reference(struct pipe_winsys *pws, struct pipe_fence_handle **ptr, struct pipe_fence_handle *fence)
+{
+   assert(pws);
+   assert(ptr);
+   assert(fence);
+}
+
+static int xsp_fence_signalled(struct pipe_winsys *pws, struct pipe_fence_handle *fence, unsigned flag)
+{
+   assert(pws);
+   assert(fence);
+
+   return 0;
+}
+
+static int xsp_fence_finish(struct pipe_winsys *pws, struct pipe_fence_handle *fence, unsigned flag)
+{
+   assert(pws);
+   assert(fence);
+
+   return 0;
+}
+
+static void xsp_flush_frontbuffer(struct pipe_winsys *pws, struct pipe_surface *surface, void *context_private)
+{
+   struct xsp_pipe_winsys *xsp_winsys;
+   struct xsp_context *xsp_context;
+
+   assert(pws);
+   assert(surface);
+   assert(context_private);
+
+   xsp_winsys = (struct xsp_pipe_winsys*)pws;
+   xsp_context = (struct xsp_context*)context_private;
+   xsp_winsys->fbimage->width = surface->width;
+   xsp_winsys->fbimage->height = surface->height;
+   xsp_winsys->fbimage->bytes_per_line = surface->width * (xsp_winsys->fbimage->bits_per_pixel >> 3);
+   xsp_winsys->fbimage->data = (char*)((struct xsp_buffer *)softpipe_texture(surface->texture)->buffer)->data + surface->offset;
+
+   XPutImage
+   (
+      xsp_winsys->display, xsp_context->drawable,
+      XDefaultGC(xsp_winsys->display, xsp_winsys->screen),
+      xsp_winsys->fbimage, 0, 0, 0, 0,
+      surface->width, surface->height
+   );
+   XFlush(xsp_winsys->display);
+}
+
+static const char* xsp_get_name(struct pipe_winsys *pws)
+{
+   assert(pws);
+   return "X11 SoftPipe";
+}
+
+static void xsp_destroy(struct pipe_winsys *pws)
+{
+   struct xsp_pipe_winsys *xsp_winsys = (struct xsp_pipe_winsys*)pws;
+
+   assert(pws);
+
+   /* XDestroyImage() wants to free the data as well */
+   xsp_winsys->fbimage->data = NULL;
+
+   XDestroyImage(xsp_winsys->fbimage);
+   FREE(xsp_winsys);
+}
+
+/* Called through pipe_video_context::destroy() */
+static void xsp_pipe_destroy(struct pipe_video_context *vpipe)
+{
+   struct xsp_context *xsp_context;
+
+   assert(vpipe);
+
+   xsp_context = vpipe->priv;
+
+   /* Call the original destroy */
+   xsp_context->pipe_destroy(vpipe);
+
+   FREE(xsp_context);
+}
+
+/* Show starts here */
+
+Drawable
+vl_video_bind_drawable(struct pipe_video_context *vpipe, Drawable drawable)
+{
+   struct xsp_context *xsp_context;
+   Drawable old_drawable;
+
+   assert(vpipe);
+
+   xsp_context = vpipe->priv;
+   old_drawable = xsp_context->drawable;
+   xsp_context->drawable = drawable;
+
+   return old_drawable;
+}
+
+struct pipe_screen*
+vl_screen_create(Display *display, int screen)
+{
+   struct xsp_pipe_winsys *xsp_winsys;
+
+   assert(display);
+
+   xsp_winsys = CALLOC_STRUCT(xsp_pipe_winsys);
+   if (!xsp_winsys)
+      return NULL;
+
+   xsp_winsys->base.buffer_create = xsp_buffer_create;
+   xsp_winsys->base.user_buffer_create = xsp_user_buffer_create;
+   xsp_winsys->base.buffer_map = xsp_buffer_map;
+   xsp_winsys->base.buffer_unmap = xsp_buffer_unmap;
+   xsp_winsys->base.buffer_destroy = xsp_buffer_destroy;
+   xsp_winsys->base.surface_buffer_create = xsp_surface_buffer_create;
+   xsp_winsys->base.fence_reference = xsp_fence_reference;
+   xsp_winsys->base.fence_signalled = xsp_fence_signalled;
+   xsp_winsys->base.fence_finish = xsp_fence_finish;
+   xsp_winsys->base.flush_frontbuffer = xsp_flush_frontbuffer;
+   xsp_winsys->base.get_name = xsp_get_name;
+   xsp_winsys->base.destroy = xsp_destroy;
+   xsp_winsys->display = display;
+   xsp_winsys->screen = screen;
+   xsp_winsys->fbimage = XCreateImage
+   (
+      display,
+      XDefaultVisual(display, screen),
+      XDefaultDepth(display, screen),
+      ZPixmap,
+      0,
+      NULL,
+      0, /* Don't know the width and height until flush_frontbuffer */
+      0,
+      32,
+      0
+   );
+
+   if (!xsp_winsys->fbimage) {
+      FREE(xsp_winsys);
+      return NULL;
+   }
+
+   XInitImage(xsp_winsys->fbimage);
+
+   return softpipe_create_screen(&xsp_winsys->base);
+}
+
+struct pipe_video_context*
+vl_video_create(Display *display, int screen,
+                struct pipe_screen *p_screen,
+                enum pipe_video_profile profile,
+                enum pipe_video_chroma_format chroma_format,
+                unsigned width, unsigned height)
+{
+   struct pipe_video_context *vpipe;
+   struct xsp_context *xsp_context;
+
+   assert(p_screen);
+   assert(width && height);
+
+   vpipe = sp_video_create(p_screen, profile, chroma_format, width, height);
+   if (!vpipe)
+      return NULL;
+
+   xsp_context = CALLOC_STRUCT(xsp_context);
+   if (!xsp_context) {
+      vpipe->destroy(vpipe);
+      return NULL;
+   }
+
+   /* Override this so we can free our xsp_context when the pipe is freed */
+   xsp_context->pipe_destroy = vpipe->destroy;
+   vpipe->destroy = xsp_pipe_destroy;
+
+   vpipe->priv = xsp_context;
+
+   return vpipe;
+}