Fix the SwapChain11::swapRect x and y coordinates to reference the lower left corner at (0,0).

TRAC #22506 Signed-off-by: Geoff Lang Signed-off-by: Nicolas Capens Author: Jamie Madill git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1891 736b8ea6-26fd-11df-bfd4-992fa37f6226

Fix the SwapChain11::swapRect x and y coordinates to reference the lower left corner at (0,0).
0bbb08d9 · shannon.woods@transgaming.com · 3e3da583 · 0bbb08d9
Commit 0bbb08d9 authored Feb 28, 2013 by shannon.woods@transgaming.com
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SwapChain11.cpp src/libGLESv2/renderer/SwapChain11.cpp +2 -2

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--- a/src/libGLESv2/renderer/SwapChain11.cpp
+++ b/src/libGLESv2/renderer/SwapChain11.cpp
@@ -617,9 +617,9 @@ EGLint SwapChain11::swapRect(EGLint x, EGLint y, EGLint width, EGLint height)

    // Create a quad in homogeneous coordinates
    float x1 = (x / float(mWidth)) * 2.0f - 1.0f;
-    float y1 = ((mHeight - y - height) / float(mHeight)) * 2.0f - 1.0f;
+    float y1 = (y / float(mHeight)) * 2.0f - 1.0f;
    float x2 = ((x + width) / float(mWidth)) * 2.0f - 1.0f;
-    float y2 = ((mHeight - y) / float(mHeight)) * 2.0f - 1.0f;
+    float y2 = ((y + height) / float(mHeight)) * 2.0f - 1.0f;

    float u1 = x / float(mWidth);
    float v1 = y / float(mHeight);