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ANDROID: Fix non-fullscreen corruption on HTC devices.

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HTC's drivers don't preserve the color buffer between frames (as allowed
by the spec, apparently), so we have to force-clear it every frame when
we're not rendering a texture over the whole screen.
This commit is contained in:
Alyssa Milburn 2011-04-04 12:21:30 +02:00
parent 6eeebfb191
commit 449e9cf339
1 changed files with 3 additions and 9 deletions
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12
backends/platform/android/gfx.cpp
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@ -430,7 +430,9 @@ void OSystem_Android::updateScreen() {
_force_redraw = false;
// clear pointer leftovers in dead areas
if (_show_overlay && !_fullscreen)
// also, HTC's GLES drivers are made of fail and don't preserve the buffer
// ( http://www.khronos.org/registry/egl/specs/EGLTechNote0001.html )
if ((_show_overlay || _htc_fail) && !_fullscreen)
clearScreen(kClear);
GLCALL(glPushMatrix());
@ -525,14 +527,6 @@ void OSystem_Android::updateScreen() {
if (!JNI::swapBuffers())
LOGW("swapBuffers failed: 0x%x", glGetError());
// HTC's GLES drivers are made of fail
// http://code.google.com/p/android/issues/detail?id=3047
if (!_show_overlay && _htc_fail) {
const Common::Rect &rect = _game_texture->getDrawRect();
glScissor(rect.left, rect.top, rect.width(), rect.height());
}
}
Graphics::Surface *OSystem_Android::lockScreen() {