The deferred display lists model now allows us to precache glyphs
at their exact size on screen.
This change also removes debug markers when the renderer defers
and reorders display lists. It also adds a flush event marker.
Change-Id: I66ec5216dc12b93ecfdad52a7146b1cfb31fbeb4
If a perspective transform is set on the Canvas, drawText() should
not attempt to rasterize glyphs in screen space. This change uses
the old behavior instead (i.e. rasterize the glyphs at the native
font size and apply the transform on the resulting mesh.)
This change also adds an optimization: empty glyphs (spaces) do
not generate vertices anymore. This saves a lot of vertices in text
heavy applications such as Gmail.
Change-Id: Ib531384163f5165b5785501612a7b1474f3ff599
This change does not apply to drawPosText() and drawTextOnPath() yet.
Prior to this change, glyphs were always rasterized based on the
font size specified in the paint. All transforms were then applied
on the resulting texture. This creates rather ugly results when
text is scaled and/or rotated.
With this change, the font renderer will apply the current transform
matrix to the glyph before they are rasterized. This generates much
better looking results.
Change-Id: I0141b6ff18db35e1213e7a3ab9db1ecaf03d7a9c
Bug #8177690
Clear the layers before we setup the stencil to avoid dereferencing
the recently deleted rects.
Change-Id: I5dce5f965672f276f9490636d85b6018d3ab9422
Fonts are now described by a transform matrix. This lead to switching
from a vector to a hashmap. This change therefore adds new comparators
and hash computations to Font.
Change-Id: I2daffa7d6287c18554c606b8bfa06640d28b4530
Bug #7253839
1. Make sure we don't make GL calls while recording display lists
2. Disable an early and trivial clip optimization in font renderer
when a perspective transformation is used on the Canvas
Change-Id: I3f1052164239329346854f72d0a0d401fbfecf06
Only upload the changed area of the glyph cache, not the entire
bitmap. Note that we can't do the full-on optimization here of copying a sub-rect
of the bitmap because of GL ES 2 limitations, but we can at least copy the
horizontal stripe containing the dirty rect, which can still be a big
savings over uploading the entire bitmap.
Issue #7158326 Bad framerates on MR1 (Mako, Manta, Prime)
Change-Id: Iab38d53202650f757ead4658cf4287bdad2b3cb9
FontRenderer::flushLargeCaches identifies the large textures used to
cache glyphs and visits all the known fonts to mark their glyphs
invalid if they belong to one of these large textures.
Unfortunately, Font::invalidateTextureCache had a logic error
which would make it mark *all glyphs* as invalid, not matter
what texture they belong to. This means that any large cache
flush would cause all glyphs to be invalidate, thus forcing
the rendering system to recreate them on the next draw.
Font::invalidateTextureCache is supposed to behave this way:
- If the specified cacheTexture is NULL (default value), mark
all glyphs as invalid (see FontRenderer::flushAllAndInvalidate())
- If cacheTexture is *not* NULL, invalidate only the glyphs for
which glyph.cacheTexture == cacheTexture.
The previous condition read:
if (cacheTexture || glyph.cacheTexture == cacheTexture)
This test *always* passes.
Change-Id: I418886cb594c81c6178d0f9e9953d975e991cf22
FontRenderer.h defined several classes and structures that now live
in the font/ folder. This will make the code easier to read and
maintain.
Change-Id: I3dc044e9bde1d6515f8704f5c72462877d279fe2
