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-rw-r--r--WebCore/platform/graphics/chromium/LayerChromium.h125
1 files changed, 70 insertions, 55 deletions
diff --git a/WebCore/platform/graphics/chromium/LayerChromium.h b/WebCore/platform/graphics/chromium/LayerChromium.h
index 9fba415..0d0d362 100644
--- a/WebCore/platform/graphics/chromium/LayerChromium.h
+++ b/WebCore/platform/graphics/chromium/LayerChromium.h
@@ -55,19 +55,24 @@ namespace WebCore {
class GraphicsContext3D;
class LayerRendererChromium;
-// Base class for composited layers. The implementation covers layers that require
-// a GraphicsContext to render their contents. Special layer types are derived from
+// Base class for composited layers. Special layer types are derived from
// this class.
class LayerChromium : public RefCounted<LayerChromium> {
+ friend class LayerRendererChromium;
public:
static PassRefPtr<LayerChromium> create(GraphicsLayerChromium* owner = 0);
~LayerChromium();
+ const LayerChromium* rootLayer() const;
+ LayerChromium* superlayer() const;
void addSublayer(PassRefPtr<LayerChromium>);
void insertSublayer(PassRefPtr<LayerChromium>, size_t index);
void replaceSublayer(LayerChromium* reference, PassRefPtr<LayerChromium> newLayer);
void removeFromSuperlayer();
+ void removeAllSublayers();
+ void setSublayers(const Vector<RefPtr<LayerChromium> >&);
+ const Vector<RefPtr<LayerChromium> >& getSublayers() const { return m_sublayers; }
void setAnchorPoint(const FloatPoint& anchorPoint) { m_anchorPoint = anchorPoint; setNeedsCommit(); }
FloatPoint anchorPoint() const { return m_anchorPoint; }
@@ -93,9 +98,6 @@ public:
void setDoubleSided(bool doubleSided) { m_doubleSided = doubleSided; setNeedsCommit(); }
bool doubleSided() const { return m_doubleSided; }
- void setEdgeAntialiasingMask(uint32_t mask) { m_edgeAntialiasingMask = mask; setNeedsCommit(); }
- uint32_t edgeAntialiasingMask() const { return m_edgeAntialiasingMask; }
-
void setFrame(const FloatRect&);
FloatRect frame() const { return m_frame; }
@@ -120,76 +122,99 @@ public:
bool opaque() const { return m_opaque; }
void setPosition(const FloatPoint& position) { m_position = position; setNeedsCommit(); }
-
FloatPoint position() const { return m_position; }
void setZPosition(float zPosition) { m_zPosition = zPosition; setNeedsCommit(); }
float zPosition() const { return m_zPosition; }
- const LayerChromium* rootLayer() const;
-
- void removeAllSublayers();
-
- void setSublayers(const Vector<RefPtr<LayerChromium> >&);
-
- const Vector<RefPtr<LayerChromium> >& getSublayers() const { return m_sublayers; }
-
void setSublayerTransform(const TransformationMatrix& transform) { m_sublayerTransform = transform; setNeedsCommit(); }
const TransformationMatrix& sublayerTransform() const { return m_sublayerTransform; }
- LayerChromium* superlayer() const;
-
-
void setTransform(const TransformationMatrix& transform) { m_transform = transform; setNeedsCommit(); }
const TransformationMatrix& transform() const { return m_transform; }
+ // FIXME: This setting is currently ignored.
void setGeometryFlipped(bool flipped) { m_geometryFlipped = flipped; setNeedsCommit(); }
bool geometryFlipped() const { return m_geometryFlipped; }
- virtual void updateTextureContents(unsigned textureId);
- bool contentsDirty() { return m_contentsDirty; }
-
void setDrawTransform(const TransformationMatrix& transform) { m_drawTransform = transform; }
const TransformationMatrix& drawTransform() const { return m_drawTransform; }
void setDrawOpacity(float opacity) { m_drawOpacity = opacity; }
float drawOpacity() const { return m_drawOpacity; }
- virtual bool drawsContent() { return m_owner && m_owner->drawsContent(); }
-
- // Return true if the layer has its own GL texture and false if the texture
- // needs to be allocated by the compositor.
- virtual bool ownsTexture() { return false; }
-
- // Returns the id of the GL texture that stores the contents of this layer.
- // Derived layer classes that own their own textures should overwrite this method.
- virtual unsigned textureId() { return m_allocatedTextureId; }
-
bool preserves3D() { return m_owner && m_owner->preserves3D(); }
void setLayerRenderer(LayerRendererChromium*);
- static void setShaderProgramId(unsigned shaderProgramId) { m_shaderProgramId = shaderProgramId; }
- virtual unsigned shaderProgramId() { return m_shaderProgramId; }
-
void setOwner(GraphicsLayerChromium* owner) { m_owner = owner; }
+ bool contentsDirty() { return m_contentsDirty; }
+
+ // These methods typically need to be overwritten by derived classes.
+ virtual bool drawsContent() { return false; }
+ virtual void updateContents() { };
+ virtual void draw() { };
+
+ void drawDebugBorder();
+
+ // Stores values that are shared between instances of this class that are
+ // associated with the same LayerRendererChromium (and hence the same GL
+ // context).
+ class SharedValues {
+ public:
+ SharedValues();
+ ~SharedValues();
+
+ unsigned quadVerticesVbo() const { return m_quadVerticesVbo; }
+ unsigned quadElementsVbo() const { return m_quadElementsVbo; }
+ int maxTextureSize() const { return m_maxTextureSize; }
+ unsigned borderShaderProgram() const { return m_borderShaderProgram; }
+ int borderShaderMatrixLocation() const { return m_borderShaderMatrixLocation; }
+ int borderShaderColorLocation() const { return m_borderShaderColorLocation; }
+ bool initialized() const { return m_initialized; }
+
+ private:
+ unsigned m_quadVerticesVbo;
+ unsigned m_quadElementsVbo;
+ int m_maxTextureSize;
+ unsigned m_borderShaderProgram;
+ int m_borderShaderMatrixLocation;
+ int m_borderShaderColorLocation;
+ bool m_initialized;
+ };
+
+ static void prepareForDraw(const SharedValues*);
+
protected:
GraphicsLayerChromium* m_owner;
LayerChromium(GraphicsLayerChromium* owner);
- void updateTextureRect(void* pixels, const IntSize& bitmapSize, const IntSize& requiredTextureSize, const IntRect& dirtyRect, unsigned textureId);
+
+ LayerRendererChromium* layerRenderer() const { return m_layerRenderer; }
+
+ static void drawTexturedQuad(const TransformationMatrix& projectionMatrix, const TransformationMatrix& layerMatrix,
+ float width, float height, float opacity,
+ int matrixLocation, int alphaLocation);
+
+ static void toGLMatrix(float*, const TransformationMatrix&);
+
+ static unsigned createShaderProgram(const char* vertexShaderSource, const char* fragmentShaderSource);
IntSize m_bounds;
FloatRect m_dirtyRect;
bool m_contentsDirty;
+ // All layer shaders share the same attribute locations for the vertex positions
+ // and texture coordinates. This allows switching shaders without rebinding attribute
+ // arrays.
+ static const unsigned s_positionAttribLocation;
+ static const unsigned s_texCoordAttribLocation;
+
private:
void setNeedsCommit();
void setSuperlayer(LayerChromium* superlayer) { m_superlayer = superlayer; }
- void paintMe();
-
size_t numSublayers() const
{
return m_sublayers.size();
@@ -204,35 +229,17 @@ private:
Vector<RefPtr<LayerChromium> > m_sublayers;
LayerChromium* m_superlayer;
+ // Layer properties.
IntSize m_backingStoreSize;
FloatPoint m_position;
FloatPoint m_anchorPoint;
Color m_backgroundColor;
Color m_borderColor;
-
- LayerRendererChromium* m_layerRenderer;
-
- FloatRect m_frame;
- TransformationMatrix m_transform;
- TransformationMatrix m_sublayerTransform;
-
- TransformationMatrix m_drawTransform;
-
- uint32_t m_edgeAntialiasingMask;
float m_opacity;
float m_zPosition;
float m_anchorPointZ;
float m_borderWidth;
-
float m_drawOpacity;
-
- unsigned m_allocatedTextureId;
- IntSize m_allocatedTextureSize;
-
- // The shader program used by all layers of this type is the same.
- // This static can be shadowed by derived classes to use a special shader.
- static unsigned m_shaderProgramId;
-
bool m_clearsContext;
bool m_doubleSided;
bool m_hidden;
@@ -241,6 +248,14 @@ private:
bool m_geometryFlipped;
bool m_needsDisplayOnBoundsChange;
+ // Points to the layer renderer that updates and draws this layer.
+ LayerRendererChromium* m_layerRenderer;
+
+ FloatRect m_frame;
+ TransformationMatrix m_transform;
+ TransformationMatrix m_sublayerTransform;
+ TransformationMatrix m_drawTransform;
+
String m_name;
};
generated by cgit v1.1 at 2024-12-23 10:46:21 +0000