Merge pull request #93 from ljubobratovicrelja/mac-fix

dcv:plot fix with high res displays

Author: ljubobratovicrelja

dub.json

@@ -13,6 +13,9 @@
 
     "targetType": "library",
 
+    "sourcePaths": ["scripts"],
+    "sourceFiles": ["source/dcv/package.d"],
+
     "buildTypes": {
         "unittest-release": {
             "buildOptions": ["unittests", "releaseMode", "optimize", "inline"]
@@ -83,7 +86,9 @@
                     "versions": ["ggplotd"]
                 }
             ],
-            "libs": ["gl", "glfw"]
+            "libs": ["glfw"],
+            "libs-linux": ["gl"],
+            "lflags-osx": ["-framework", "OpenGL"]
         }
     ]
 }

source/dcv/plot/bindings/glfw.d

@@ -279,6 +279,7 @@ extern (C)
     void glfwGetWindowSize(GLFWwindow* window, int* width, int* height);
     void glfwSetWindowSize(GLFWwindow* window, int width, int height);
     void glfwWindowHint(int target, int hint);
+    void glfwGetFramebufferSize (GLFWwindow * window, int *width, int *height);
 
     GLFWcharfun glfwSetCharCallback(GLFWwindow* window, GLFWcharfun cbfun);
     GLFWcharmodsfun glfwSetCharModsCallback(GLFWwindow* window, GLFWcharmodsfun cbfun);

source/dcv/plot/figure.d

@@ -651,16 +651,21 @@ class Figure
     {
         glfwMakeContextCurrent(_glfwWindow);
 
+        int fBufWidth, fBufHeight;
+        glfwGetFramebufferSize(_glfwWindow, &fBufWidth, &fBufHeight);
+
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
         glDisable(GL_DEPTH_TEST);
 
-        glViewport(0, 0, width, height);
+        glViewport(0, 0, fBufWidth, fBufHeight);
 
         glMatrixMode(GL_PROJECTION);
         glLoadIdentity();
 
         glOrtho(0, width, 0, height, 0.1, 1);
-        glPixelZoom(1, -1);
+
+        glPixelZoom(fBufWidth / width, -fBufHeight / height);
+
         glRasterPos3f(0, height - 1, -0.3);
 
         glPixelStorei(GL_UNPACK_ALIGNMENT, 1);