| //+------------------------------------------------------------------+
|
| //| DXTexture.mqh |
|
| //| Copyright 2000-2025, MetaQuotes Ltd. |
|
| //| https://www.mql5.com |
|
| //+------------------------------------------------------------------+
|
| #include "DXHandle.mqh"
|
| #include <Canvas\Canvas.mqh>
|
| //+------------------------------------------------------------------+
|
| //| Class CDXTexture |
|
| //+------------------------------------------------------------------+
|
| class CDXTexture : public CDXHandleShared
|
| {
|
| public:
|
| //+------------------------------------------------------------------+
|
| //| Destructor |
|
| //+------------------------------------------------------------------+
|
| virtual ~CDXTexture(void)
|
| {
|
| Shutdown();
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Create a new texture from bitmap file |
|
| //+------------------------------------------------------------------+
|
| bool Create(int context,string path,uint data_x=0,uint data_y=0,uint data_width=0,uint data_height=0)
|
| {
|
| uint data[];
|
| uint width,height;
|
| //--- load image data
|
| if(StringFind(path,"::")==0)
|
| {
|
| //--- load from resource
|
| if(!ResourceReadImage(path,data,width,height))
|
| return(false);
|
| }
|
| else
|
| {
|
| //--- load from file
|
| int w,h;
|
| if(!CCanvas::LoadBitmap(path,data,w,h))
|
| return(false);
|
| //--- save unsigned dimensions
|
| width=(uint)w;
|
| height=(uint)h;
|
| }
|
| //--- create texture from bitmap data
|
| return(Create(context,DX_FORMAT_B8G8R8A8_UNORM,width,height,data,data_x,data_y,data_width,data_height));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Create a new texture, only 32-bit pixel formats supported |
|
| //+------------------------------------------------------------------+
|
| bool Create(int context,ENUM_DX_FORMAT format,uint width,uint height,const uint &data[],uint data_x=0,uint data_y=0,uint data_width=0,uint data_height=0)
|
| {
|
| //--- check dimensions
|
| if(width<data_x+data_width || height<data_y+data_height)
|
| return(false);
|
| //--- shutdown texture
|
| Shutdown();
|
| //--- save new context
|
| m_context=context;
|
| //---
|
| if(data_width==0)
|
| data_width=width-data_x;
|
| if(data_height==0)
|
| data_height=height-data_y;
|
| //--- create new texture
|
| m_handle=DXTextureCreate(context,format,width,height,data,data_x,data_y,data_width,data_height);
|
| return(m_handle!=INVALID_HANDLE);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Shutdown |
|
| //+------------------------------------------------------------------+
|
| virtual void Shutdown(void)
|
| {
|
| //--- relase handle
|
| if(m_handle!=INVALID_HANDLE)
|
| DXRelease(m_handle);
|
| m_handle=INVALID_HANDLE;
|
| }
|
| };
|
| //+------------------------------------------------------------------+
|
