Added interlace display to TOM/video handler.

[virtualjaguar] / src / gui / glwidget.cpp

diff --git a/src/gui/glwidget.cpp b/src/gui/glwidget.cpp
index 8d69f63ff6a356e8775e929c7a5cfb58f4c60d18..b8c7a32609adac1c928a6d59f6fd4624efdc91f6 100644 (file)
--- a/src/gui/glwidget.cpp
+++ b/src/gui/glwidget.cpp
@@ -61,25 +61,22 @@ void GLWidget::initializeGL()
 
 void GLWidget::paintGL()
 {
-//kludge [NO MORE!]
-//rasterHeight = (vjs.hardwareTypeNTSC ? VIRTUAL_SCREEN_HEIGHT_NTSC : VIRTUAL_SCREEN_HEIGHT_PAL);
-
        // If we're in fullscreen mode, we take the value of the screen width as
        // set by MainWin, since it may be wider than what our aspect ratio allows.
        // In that case, we adjust the viewport over so that it's centered on the
        // screen. Otherwise, we simply take the width from our width() funtion
        // which will always be correct in windowed mode.
 
-//     unsigned outputWidth  = width();
        if (!fullscreen)
                outputWidth = width();
 
+       // Bit 0 in VP is interlace flag. 0 = interlace, 1 = non-interlaced
+       double multiplier = (TOMGetVP() & 0x0001 ? 1.0 : 2.0);
        unsigned outputHeight = height();
 
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        glOrtho(0, outputWidth, 0, outputHeight, -1.0, 1.0);
-//     glViewport(0, 0, outputWidth, outputHeight);
        glViewport(0 + offset, 0, outputWidth, outputHeight);
 
        glMatrixMode(GL_MODELVIEW);
@@ -87,29 +84,18 @@ void GLWidget::paintGL()
 
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (vjs.glFilter ? GL_LINEAR : GL_NEAREST));
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (vjs.glFilter ? GL_LINEAR : GL_NEAREST));
-//     glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rasterWidth, rasterHeight, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, buffer);
-//more kludge
-       glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, TOMGetVideoModeWidth(), rasterHeight, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, buffer);
-//     glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rasterWidth, rasterHeight, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, buffer);
+       glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, TOMGetVideoModeWidth(), rasterHeight * multiplier, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, buffer);
 
        double w = (double)TOMGetVideoModeWidth()  / (double)textureWidth;
-//     double w = (double)rasterWidth  / (double)textureWidth;
-       double h = (double)rasterHeight / (double)textureHeight;
+       double h = ((double)rasterHeight * multiplier) / (double)textureHeight;
        unsigned u = outputWidth;
        unsigned v = outputHeight;
 
        glBegin(GL_TRIANGLE_STRIP);
-#if 1
        glTexCoord2f(0, 0); glVertex3i(0, v, 0);
        glTexCoord2f(w, 0); glVertex3i(u, v, 0);
        glTexCoord2f(0, h); glVertex3i(0, 0, 0);
        glTexCoord2f(w, h); glVertex3i(u, 0, 0);
-#else
-       glTexCoord2f(0, 0); glVertex3i(0 + offset, v, 0);
-       glTexCoord2f(w, 0); glVertex3i(u + offset, v, 0);
-       glTexCoord2f(0, h); glVertex3i(0 + offset, 0, 0);
-       glTexCoord2f(w, h); glVertex3i(u + offset, 0, 0);
-#endif
        glEnd();
 }