1 files changed, 87 insertions, 0 deletions

diff --git a/libraries/evas/src/modules/engines/software_16_ddraw/evas_ddraw_buffer.cpp b/libraries/evas/src/modules/engines/software_16_ddraw/evas_ddraw_buffer.cpp
new file mode 100644
index 0000000..7a0a8b7
--- /dev/null
+++ b/libraries/evas/src/modules/engines/software_16_ddraw/evas_ddraw_buffer.cpp
@@ -0,0 +1,87 @@
+#include "evas_common.h"
+#include "evas_engine.h"
+
+
+DDraw_Output_Buffer *
+evas_software_ddraw_output_buffer_new(HWND                window,
+                                      LPDIRECTDRAW        object,
+                                      LPDIRECTDRAWSURFACE surface_primary,
+                                      LPDIRECTDRAWSURFACE surface_back,
+                                      LPDIRECTDRAWSURFACE surface_source,
+                                      int                 width,
+                                      int                 height)
+{
+   DDSURFACEDESC        surface_desc;
+   DDraw_Output_Buffer *ddob;
+
+   ddob = (DDraw_Output_Buffer *)calloc(1, sizeof(DDraw_Output_Buffer));
+   if (!ddob) return NULL;
+
+   ddob->dd.window = window;
+   ddob->dd.object = object;
+   ddob->dd.surface_primary = surface_primary;
+   ddob->dd.surface_back = surface_back;
+   ddob->dd.surface_source = surface_source;
+   ddob->width = width;
+   ddob->height = height;
+   ddob->pitch = width * 2;
+
+   ZeroMemory(&surface_desc, sizeof(surface_desc));
+   surface_desc.dwSize = sizeof(surface_desc);
+
+   if (FAILED(ddob->dd.surface_source->Lock(NULL,
+                                            &surface_desc,
+                                            DDLOCK_WAIT | DDLOCK_SURFACEMEMORYPTR,
+                                            NULL)))
+     {
+        free(ddob);
+        return NULL;
+     }
+
+   ddob->data = (DATA16 *)surface_desc.lpSurface;
+
+   if (FAILED(ddob->dd.surface_source->Unlock(NULL)))
+     {
+        free(ddob);
+        return NULL;
+     }
+   if (ddob->im)
+     evas_cache_image_drop(&ddob->im->cache_entry);
+
+   ddob->im =  (Soft16_Image *) evas_cache_image_data(evas_common_soft16_image_cache_get(), width, height, (DATA32 *) ddob->data, 0, EVAS_COLORSPACE_RGB565_A5P);
+   if (ddob->im)
+     ddob->im->stride = ddob->pitch;
+
+   return ddob;
+}
+
+void
+evas_software_ddraw_output_buffer_free(DDraw_Output_Buffer *ddob, int sync)
+{
+   free(ddob);
+}
+
+void
+evas_software_ddraw_output_buffer_paste(DDraw_Output_Buffer *ddob)
+{
+   RECT  dst_rect;
+   RECT  src_rect;
+   POINT p;
+
+   SetRect(&src_rect, 0, 0, ddob->width, ddob->height);
+
+   if (FAILED(ddob->dd.surface_back->BltFast(0, 0,
+                                             ddob->dd.surface_source,
+                                             &src_rect,
+                                             DDBLTFAST_NOCOLORKEY | DDBLTFAST_WAIT)))
+     return;
+
+   p.x = 0;
+   p.y = 0;
+   ClientToScreen(ddob->dd.window, &p);
+   GetClientRect(ddob->dd.window, &dst_rect);
+   OffsetRect(&dst_rect, p.x, p.y);
+   ddob->dd.surface_primary->Blt(&dst_rect,
+                                 ddob->dd.surface_back, &src_rect,
+                                 DDBLT_WAIT, NULL);
+}