graw/gdi: Initial commit.

1 files changed, 153 insertions, 0 deletions

diff --git a/src/gallium/targets/graw-gdi/graw_gdi.c b/src/gallium/targets/graw-gdi/graw_gdi.c
new file mode 100644
index 00000000000..018b1539843
--- /dev/null
+++ b/src/gallium/targets/graw-gdi/graw_gdi.c
@@ -0,0 +1,153 @@
+/**************************************************************************
+ *
+ * Copyright 2010 VMware, Inc.
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ *
+ **************************************************************************/
+
+#include "gdi/gdi_sw_winsys.h"
+#include "pipe/p_screen.h"
+#include "softpipe/sp_public.h"
+#include "state_tracker/graw.h"
+#include "sw/sw_public.h"
+#include "target-helpers/wrap_screen.h"
+#include <windows.h>
+
+
+static LRESULT CALLBACK
+window_proc(HWND hWnd,
+            UINT uMsg,
+            WPARAM wParam,
+            LPARAM lParam)
+{
+   switch (uMsg) {
+   case WM_DESTROY:
+      PostQuitMessage(0);
+      break;
+
+   default:
+      return DefWindowProc(hWnd, uMsg, wParam, lParam);
+   }
+
+   return 0;
+}
+
+static struct {
+   void (* draw)(void);
+} graw;
+
+struct pipe_screen *
+graw_create_window_and_screen(int x,
+                              int y,
+                              unsigned width,
+                              unsigned height,
+                              enum pipe_format format,
+                              void **handle)
+{
+   struct sw_winsys *winsys = NULL;
+   struct pipe_screen *screen = NULL;
+   WNDCLASSEX wc = {sizeof(wc)};
+   HWND hWnd = NULL;
+   HDC hDC = NULL;
+
+   if (format != PIPE_FORMAT_R8G8B8A8_UNORM)
+      goto fail;
+
+   winsys = gdi_create_sw_winsys();
+   if (winsys == NULL)
+      goto fail;
+
+   screen = softpipe_create_screen(winsys);
+   if (screen == NULL)
+      goto fail;
+
+   wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
+   wc.lpfnWndProc = window_proc;
+   wc.lpszClassName = "graw-gdi";
+   wc.hInstance = GetModuleHandle(NULL);
+   wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
+   wc.hCursor = LoadCursor(NULL, IDC_ARROW);
+   wc.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
+   RegisterClassEx(&wc);
+
+   hWnd = CreateWindowEx(0,
+                         wc.lpszClassName,
+                         wc.lpszClassName,
+                         WS_VISIBLE | WS_TILEDWINDOW,
+                         x,
+                         y,
+                         width,
+                         height,
+                         NULL,
+                         NULL,
+                         wc.hInstance,
+                         0);
+   if (hWnd == NULL)
+      goto fail;
+
+   hDC = GetDC(hWnd);
+   if (hDC == NULL)
+      goto fail;
+
+   *handle = (void *)hDC;
+
+   return gallium_wrap_screen(screen);
+
+fail:
+   if (hWnd)
+      DestroyWindow(hWnd);
+
+   if (screen)
+      screen->destroy(screen);
+
+   return NULL;
+}
+
+void 
+graw_set_display_func(void (* draw)(void))
+{
+   graw.draw = draw;
+}
+
+void
+graw_main_loop(void)
+{
+   for (;;) {
+      MSG msg;
+
+      while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
+         if (msg.message == WM_QUIT) {
+            return;
+         }
+         TranslateMessage(&msg);
+         DispatchMessage(&msg);
+      }
+
+      if (graw.draw) {
+         graw.draw();
+      }
+
+      Sleep(0);
+   }
+}