android/android_hardware_qcom_display
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hardware/qcom/display: Fixes corrupted display when using whith zero dirtyregion

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An empty dirty region, which initiates tile rendering (non-preserved with full viewport)
but with no updates from the view hierarchy leading to uninitialized content on the screen

CR's Fixed:357662
(cherry picked from commit 66ceabd31fcd49c344b468a138438fe3d226f515)

Change-Id: Ieaa357ee2951aa8286ab1fe0f96b3d99bc424a3b
This commit is contained in:
Rajulu Ponnada 2012-05-22 12:43:01 -07:00 committed by Andrew Sutherland
parent 5309935986
commit ce483cb074
1 changed files with 3 additions and 1 deletions
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4
libtilerenderer/tilerenderer.cpp
View File

@ -38,6 +38,7 @@ void TileRenderer::startTileRendering(OpenGLRenderer* renderer,
int width = 0;
int height = 0;
GLenum status = GL_NO_ERROR;
int preserve = 0;
if (renderer != NULL) {
renderer->getViewport(width, height);
@ -48,6 +49,7 @@ void TileRenderer::startTileRendering(OpenGLRenderer* renderer,
top = 0;
right = width;
bottom = height;
preserve = 1;
}
if (!left && !right && !top && !bottom) {
@ -56,7 +58,7 @@ void TileRenderer::startTileRendering(OpenGLRenderer* renderer,
return;
}
int l = left, t = (height - bottom), w = (right - left), h = (bottom - top), preserve = 0;
int l = left, t = (height - bottom), w = (right - left), h = (bottom - top);
if (l < 0 || t < 0) {
l = (l < 0) ? 0 : l;