glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount);
}
+bool OpenGLRenderer::canSkipText(const SkPaint* paint) const {
+ float alpha = (mDrawModifiers.mHasShadow ? 1.0f : paint->getAlpha()) * mSnapshot->alpha;
+ return alpha == 0.0f && getXfermode(paint->getXfermode()) == SkXfermode::kSrcOver_Mode;
+}
+
status_t OpenGLRenderer::drawPosText(const char* text, int bytesCount, int count,
const float* positions, SkPaint* paint) {
- if (text == NULL || count == 0 || mSnapshot->isIgnored() ||
- (paint->getAlpha() * mSnapshot->alpha == 0 && paint->getXfermode() == NULL)) {
+ if (text == NULL || count == 0 || mSnapshot->isIgnored() || canSkipText(paint)) {
return DrawGlInfo::kStatusDone;
}
status_t OpenGLRenderer::drawText(const char* text, int bytesCount, int count,
float x, float y, const float* positions, SkPaint* paint, float length) {
- if (text == NULL || count == 0 || mSnapshot->isIgnored() ||
- (paint->getAlpha() * mSnapshot->alpha == 0 && paint->getXfermode() == NULL)) {
+ if (text == NULL || count == 0 || mSnapshot->isIgnored() || canSkipText(paint)) {
return DrawGlInfo::kStatusDone;
}
status_t OpenGLRenderer::drawTextOnPath(const char* text, int bytesCount, int count, SkPath* path,
float hOffset, float vOffset, SkPaint* paint) {
- if (text == NULL || count == 0 || mSnapshot->isIgnored() ||
- (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) {
+ if (text == NULL || count == 0 || mSnapshot->isIgnored() || canSkipText(paint)) {
return DrawGlInfo::kStatusDone;
}
void resetDrawTextureTexCoords(float u1, float v1, float u2, float v2);
/**
+ * Returns true if the specified paint will draw invisible text.
+ */
+ bool canSkipText(const SkPaint* paint) const;
+
+ /**
* Binds the specified texture. The texture unit must have been selected
* prior to calling this method.
*/