From 4fee49aa43b838411eb755033d0e4ec56c0b2446 Mon Sep 17 00:00:00 2001
From: Vincent Wei <vincent@minigui.org>
Date: Sat, 14 Mar 2020 22:31:01 +0800
Subject: [PATCH] add argument offset to drmCreateDCFromXXX functions

---
 include/gdi.h | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/include/gdi.h b/include/gdi.h
index fc3b8ce0..a9fb0c45 100644
--- a/include/gdi.h
+++ b/include/gdi.h
@@ -14364,7 +14364,9 @@ typedef struct _DrmSurfaceInfo {
     /** The DRM pixel format. */
     uint32_t drm_format;
     /** Size in bytes of the buffer object. */
-    unsigned long size;
+    size_t size;
+    /** The offset from the buffer start to the real pixel data. */
+    off_t offset;
 } DrmSurfaceInfo;
 
 /**
@@ -14386,6 +14388,7 @@ MG_EXPORT BOOL drmGetSurfaceInfo (GHANDLE video, HDC hdc, DrmSurfaceInfo* info);
  * \param video The video handle.
  * \param name The name handle of the DRM surface.
  * \param drm_format The DRM pixel format.
+ * \param offset The offset from the buffer start to the real pixel data.
  * \param width The width of the DRM surface.
  * \param height The height of the DRM surface.
  * \param pitch The pitch (row stride) of the DRM surface.
@@ -14393,8 +14396,8 @@ MG_EXPORT BOOL drmGetSurfaceInfo (GHANDLE video, HDC hdc, DrmSurfaceInfo* info);
  * \return The handle to the memory DC for success, HDC_INVALID for failure.
  */
 MG_EXPORT HDC drmCreateDCFromName (GHANDLE video,
-            uint32_t name, uint32_t drm_format,
-            unsigned int width, unsigned int height, uint32_t pitch);
+        uint32_t name, uint32_t drm_format, off_t offset,
+        uint32_t width, uint32_t height, uint32_t pitch);
 
 /**
  * This function creates a memory DC with a DRM surface which is created by
@@ -14404,6 +14407,7 @@ MG_EXPORT HDC drmCreateDCFromName (GHANDLE video,
  * \param prime_fd The PRIME file descriptor.
  * \param size The size of the DRM surface in bytes.
  * \param drm_format The DRM pixel format.
+ * \param offset The offset from the buffer start to the real pixel data.
  * \param width The width of the DRM surface.
  * \param height The height of the DRM surface.
  * \param pitch The pitch (row stride) of the DRM surface.
@@ -14411,8 +14415,8 @@ MG_EXPORT HDC drmCreateDCFromName (GHANDLE video,
  * \return The handle to the memory DC for success, HDC_INVALID for failure.
  */
 MG_EXPORT HDC drmCreateDCFromPrimeFd (GHANDLE video,
-            int prime_fd, unsigned long size, uint32_t drm_format,
-            unsigned int width, unsigned int height, uint32_t pitch);
+        int prime_fd, size_t size, uint32_t drm_format, off_t offset,
+        uint32_t width, uint32_t height, uint32_t pitch);
 
 /**
  * This function creates a memory DC with a DRM surface which is created by
@@ -14422,6 +14426,7 @@ MG_EXPORT HDC drmCreateDCFromPrimeFd (GHANDLE video,
  * \param handle The handle of the DRM surface.
  * \param size The size of the DRM surface in bytes.
  * \param drm_format The DRM pixel format.
+ * \param offset The offset from the buffer start to the real pixel data.
  * \param width The width of the DRM surface.
  * \param height The height of the DRM surface.
  * \param pitch The pitch (row stride) of the DRM surface.
@@ -14429,8 +14434,8 @@ MG_EXPORT HDC drmCreateDCFromPrimeFd (GHANDLE video,
  * \return The handle to the memory DC for success, HDC_INVALID for failure.
  */
 MG_EXPORT HDC drmCreateDCFromHandle (GHANDLE video,
-            uint32_t handle, unsigned long size, uint32_t drm_format,
-            unsigned int width, unsigned int height, uint32_t pitch);
+        uint32_t handle, size_t size, uint32_t drm_format, off_t offset,
+        uint32_t width, uint32_t height, uint32_t pitch);
 
 /** @} end of gdi_drm_fns */