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refactor: clean up layers properties loop

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Restructure the loop a bit to have less code repetition and make it easier to
understand.
This commit is contained in:
Roman Gilg 2020-02-26 16:22:54 +01:00
parent 8833e07618
commit 42a268bd27
1 changed files with 37 additions and 35 deletions
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72
src/drm.cpp
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@ -698,61 +698,63 @@ bool drm_can_avoid_composite( struct drm_t *drm, struct Composite_t *pComposite,
if ( g_bUseLayers == true )
{
for ( int i = 0; i < k_nMaxLayers; i++ )
{
if ( i < nLayerCount )
{
if ( g_bRotated )
{
liftoff_layer_set_property( drm->lo_layers[ i ], "rotation", DRM_MODE_ROTATE_270);
}
if ( pPipeline->layerBindings[ i ].fbid != 0 )
if ( pPipeline->layerBindings[ i ].fbid == 0 )
{
return false;
}
liftoff_layer_set_property( drm->lo_layers[ i ], "FB_ID", pPipeline->layerBindings[ i ].fbid);
drm->fbids_in_req.push_back( pPipeline->layerBindings[ i ].fbid );
if ( g_bUseLayers == true )
liftoff_layer_set_property( drm->lo_layers[ i ], "zpos", pPipeline->layerBindings[ i ].zpos );
liftoff_layer_set_property( drm->lo_layers[ i ], "alpha", pComposite->layers[ i ].flOpacity * 0xffff);
if ( pPipeline->layerBindings[ i ].zpos == 0 )
{
liftoff_layer_set_property( drm->lo_layers[ i ], "zpos", pPipeline->layerBindings[ i ].zpos );
liftoff_layer_set_property( drm->lo_layers[ i ], "alpha", pComposite->layers[ i ].flOpacity * 0xffff);
if ( pPipeline->layerBindings[ i ].zpos == 0 )
{
assert( ( pComposite->layers[ i ].flOpacity * 0xffff ) == 0xffff );
}
assert( ( pComposite->layers[ i ].flOpacity * 0xffff ) == 0xffff );
}
const uint16_t srcWidth = pPipeline->layerBindings[ i ].surfaceWidth;
const uint16_t srcHeight = pPipeline->layerBindings[ i ].surfaceHeight;
liftoff_layer_set_property( drm->lo_layers[ i ], "SRC_X", 0);
liftoff_layer_set_property( drm->lo_layers[ i ], "SRC_Y", 0);
liftoff_layer_set_property( drm->lo_layers[ i ], "SRC_W", pPipeline->layerBindings[ i ].surfaceWidth << 16);
liftoff_layer_set_property( drm->lo_layers[ i ], "SRC_H", pPipeline->layerBindings[ i ].surfaceHeight << 16);
if ( g_bRotated )
{
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_X", pComposite->layers[ i ].flOffsetY * -1);
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_Y", pComposite->layers[ i ].flOffsetX * -1);
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_H", pPipeline->layerBindings[ i ].surfaceWidth / pComposite->layers[ i ].flScaleX);
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_W", pPipeline->layerBindings[ i ].surfaceHeight / pComposite->layers[ i ].flScaleY);
}
else
{
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_X", pComposite->layers[ i ].flOffsetX * -1);
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_Y", pComposite->layers[ i ].flOffsetY * -1);
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_W", pPipeline->layerBindings[ i ].surfaceWidth / pComposite->layers[ i ].flScaleX);
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_H", pPipeline->layerBindings[ i ].surfaceHeight / pComposite->layers[ i ].flScaleY);
liftoff_layer_set_property( drm->lo_layers[ i ], "SRC_W", srcWidth << 16);
liftoff_layer_set_property( drm->lo_layers[ i ], "SRC_H", srcHeight << 16);
int32_t crtcX = -pComposite->layers[ i ].flOffsetX;
int32_t crtcY = -pComposite->layers[ i ].flOffsetY;
uint64_t crtcW = srcWidth / pComposite->layers[ i ].flScaleX;
uint64_t crtcH = srcHeight / pComposite->layers[ i ].flScaleY;
if (g_bRotated) {
const int32_t x = crtcX;
const uint64_t w = crtcW;
crtcX = crtcY;
crtcY = x;
crtcW = crtcH;
crtcH = w;
liftoff_layer_set_property( drm->lo_layers[ i ], "rotation", DRM_MODE_ROTATE_270);
}
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_X", crtcX);
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_Y", crtcY);
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_W", crtcW);
liftoff_layer_set_property( drm->lo_layers[ i ], "CRTC_H", crtcH);
}
else
{
liftoff_layer_set_property( drm->lo_layers[ i ], "FB_ID", 0 );
}
}
}
assert( drm->req == nullptr );