Changeset 79745 in vbox

Timestamp:

Jul 12, 2019 6:03:42 PM (5 years ago)

Author:

vboxsync

Message:

WDDM: opengl test application: texture2d.

File:

• trunk/src/VBox/Additions/WINNT/Graphics/Video/disp/wddm/gallium/ogltest/oglrender.cpp (modified) (2 diffs)

trunk/src/VBox/Additions/WINNT/Graphics/Video/disp/wddm/gallium/ogltest/oglrender.cpp

@@ -49 +49 @@
 
 
+/*
+ * Texture2D.
+ */
+class OGLRenderTexture2D : public OGLRender
+{
+    virtual HRESULT InitRender();
+    virtual HRESULT DoRender();
+    GLuint texName;
+    static const int texWidth = 8;
+    static const int texHeight = 8;
+};
+
+HRESULT OGLRenderTexture2D::InitRender()
+{
+    static GLubyte texImage[texHeight][texWidth][4];
+    for (int y = 0; y < texHeight; ++y)
+    {
+       for (int x = 0; x < texWidth; ++x)
+       {
+          GLubyte v = 255;
+          if (   (texHeight/4 <= y && y < 3*texHeight/4)
+              && (texWidth/4 <= x && x < 3*texWidth/4))
+          {
+              if (y < x)
+              {
+                  v = 0;
+              }
+          }
+
+          texImage[y][x][0] = v;
+          texImage[y][x][1] = 0;
+          texImage[y][x][2] = 0;
+          texImage[y][x][3] = 255;
+       }
+    }
+
+    glClearColor(0.0, 0.0, 1.0, 1.0);
+
+    glGenTextures(1, &texName);
+    glBindTexture(GL_TEXTURE_2D, texName);
+
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texWidth, texHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, texImage);
+
+    glBindTexture(GL_TEXTURE_2D, 0);
+
+    return S_OK;
+}
+
+HRESULT OGLRenderTexture2D::DoRender()
+{
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+    glEnable(GL_TEXTURE_2D);
+
+    glBindTexture(GL_TEXTURE_2D, texName);
+
+    glBegin(GL_TRIANGLES);
+    glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 0.0f);
+    glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, 0.0f);
+    glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, 0.0f);
+
+    glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 0.0f);
+    glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, 0.0f);
+    glTexCoord2f(1.0f, 0.0f); glVertex3f( 0.0f, -1.0f, 0.0f);
+    glEnd();
+
+    glBindTexture(GL_TEXTURE_2D, 0);
+
+    glDisable(GL_TEXTURE_2D);
+
+    glFlush();
+
+    return S_OK;
+}
+
+
 OGLRender *CreateRender(int iRenderId)
 {
@@ -55 +135 @@
     {
         case 0: pRender = new OGLRenderTriangle(); break;
+        case 1: pRender = new OGLRenderTexture2D(); break;
         default:
             break;