diff options
Diffstat (limited to 'src/drivers/OpenGL')
| -rw-r--r-- | src/drivers/OpenGL/Fl_OpenGL_Display_Device.cxx | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/drivers/OpenGL/Fl_OpenGL_Display_Device.cxx b/src/drivers/OpenGL/Fl_OpenGL_Display_Device.cxx index 21bcf65df..c65c6a3a1 100644 --- a/src/drivers/OpenGL/Fl_OpenGL_Display_Device.cxx +++ b/src/drivers/OpenGL/Fl_OpenGL_Display_Device.cxx @@ -3,7 +3,7 @@ // // implementation of class Fl_Gl_Device_Plugin for the Fast Light Tool Kit (FLTK). // -// Copyright 2010-2014 by Bill Spitzak and others. +// Copyright 2010-2017 by Bill Spitzak and others. // // This library is free software. Distribution and use rights are outlined in // the file "COPYING" which should have been included with this file. If this @@ -94,6 +94,8 @@ Fl_RGB_Image* Fl_OpenGL_Display_Device::capture_gl_rectangle(Fl_Gl_Window* glw, # pragma message "FL_PORTING: check whether the default Fl_OpenGL_Display_Device::capture_gl_rectangle() works for your platform" #endif +#include <FL/Fl_Screen_Driver.H> +#include <FL/Fl_Window_Driver.H> Fl_RGB_Image* Fl_OpenGL_Display_Device::capture_gl_rectangle(Fl_Gl_Window *glw, int x, int y, int w, int h) /* captures a rectangle of a Fl_Gl_Window window, and returns it as a RGB image */ @@ -106,6 +108,12 @@ Fl_RGB_Image* Fl_OpenGL_Display_Device::capture_gl_rectangle(Fl_Gl_Window *glw, glPixelStorei(GL_PACK_ROW_LENGTH, 0); glPixelStorei(GL_PACK_SKIP_ROWS, 0); glPixelStorei(GL_PACK_SKIP_PIXELS, 0); + // + int ns = glw->driver()->screen_num(); + float s = Fl::screen_driver()->scale(ns); + if (s != 1) { + x *= s; y *= s; w *= s; h *= s; + } // Read a block of pixels from the frame buffer int mByteWidth = w * 3; mByteWidth = (mByteWidth + 3) & ~3; // Align to 4 bytes |