add ResendSurfaceCreateCommands

2 files changed, 63 insertions, 0 deletions

diff --git a/display/surface.c b/display/surface.c
index 7cc8f8d..347b70a 100644
--- a/display/surface.c
+++ b/display/surface.c
@@ -170,6 +170,67 @@ out_error1:
     return 0;
 }
 
+/* TODO: move to h file */
+static _inline QXLPHYSICAL PA(PDev *pdev, PVOID virt, UINT8 slot_id)
+{
+    PMemSlot *p_slot = &pdev->mem_slots[slot_id];
+
+    return p_slot->high_bits | ((UINT64)virt - p_slot->slot.start_virt_addr);
+}
+
+/* when we return from S3 we need to resend all the surface creation commands.
+ * Actually moving the memory vram<->guest is not strictly neccessary since vram
+ * is not reset during the suspend, so contents are not lost */
+VOID ResendSurfaceCreateCommands(PDev *pdev)
+{
+    QXLSurfaceCmd *surface;
+    UINT32 surface_id;
+    SurfaceInfo *surface_info;
+    QXLPHYSICAL phys_mem;
+    UINT32 surface_format;
+    UINT32 depth;
+    //HBITMAP surf;
+    UINT32 stride;
+    SURFOBJ *surf_obj;
+    int count_used = 0;
+    UINT32 cx, cy;
+
+    /* brute force implementation - alternative is to keep an updated used_surfaces list */
+    DEBUG_PRINT((pdev, 0, "%s\n", __FUNCTION__));
+
+    for (surface_id = 1 ; surface_id < pdev->n_surfaces ; ++surface_id) {
+        surface_info = GetSurfaceInfo(pdev, surface_id);
+        if (!surface_info->draw_area.base_mem) {
+            continue;
+        }
+        //surf = surface_info->draw_area.bitmap;
+        surf_obj = surface_info->draw_area.surf_obj;
+        if (!surf_obj) {
+            DEBUG_PRINT((pdev, 0, "%s: surface_id = %d, marked as used, but no surf_obj\n", __FUNCTION__,
+                surface_id));
+            continue;
+        }
+        cx = surf_obj->sizlBitmap.cx;
+        cy = surf_obj->sizlBitmap.cy;
+        phys_mem = (QXLPHYSICAL)surf_obj->pvBits;
+        BitmapFormatToDepthAndSurfaceFormat(surf_obj->iBitmapFormat, &depth, &surface_format);
+        stride = surf_obj->lDelta;
+        DEBUG_PRINT((pdev, 0,
+            "%s: surface_id = %d, format = %d, depth = %d, size = (%d, %d), stride = %d\n",
+            __FUNCTION__, surface_id, surface_format, depth, cx, cy, stride));
+        phys_mem = PA(pdev, (PVOID)((UINT64)surface_info->draw_area.base_mem), pdev->vram_mem_slot);
+        DEBUG_PRINT((pdev, 0, "%s: data = %p\n", __FUNCTION__, stride, phys_mem));
+        surface = SurfaceCmd(pdev, QXL_SURFACE_CMD_CREATE, surface_id);
+        surface->u.surface_create.format = surface_format;
+        surface->u.surface_create.width = cx;
+        surface->u.surface_create.height = cy;
+        surface->u.surface_create.stride = stride;
+        surface->u.surface_create.data = phys_mem;
+        PushSurfaceCmd(pdev, surface);
+    }
+    //EngFreeMem(used);
+}
+
 VOID DeleteDeviceBitmap(PDev *pdev, UINT32 surface_id, UINT8 allocation_type)
 {
     DrawArea *drawarea;
diff --git a/display/surface.h b/display/surface.h
index e212c46..30e9cea 100644
--- a/display/surface.h
+++ b/display/surface.h
@@ -87,4 +87,6 @@ HBITMAP CreateDeviceBitmap(PDev *pdev, SIZEL size, ULONG format, QXLPHYSICAL *ph
                            UINT8 **base_mem, UINT32 surface_id, UINT8 allocation_type);
 VOID DeleteDeviceBitmap(PDev *pdev, UINT32 surface_id, UINT8 allocation_type);
 
+VOID ResendSurfaceCreateCommands(PDev *pdev);
+
 #endif