| cf51a4199835e9604aa4c8b3854306f8fbabbf33 |
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09-Apr-2013 |
Romain Guy <romainguy@google.com> |
Introduce PixelBuffer API to enable PBOs
PBOs (Pixel Buffer Objects) can be used on OpenGL ES 3.0 to perform
asynchronous texture uploads to free up the CPU. This change does not
enable the use of PBOs unless a specific property is set (Adreno drivers
have issues with PBOs at the moment, Mali drivers work just fine.)
This change also cleans up Font/FontRenderer a little bit and improves
performance of drop shadows generations by using memcpy() instead of
a manual byte-by-byte copy.
On GL ES 2.0 devices, or when PBOs are disabled, a PixelBuffer instance
behaves like a simple byte array. The extra APIs introduced for PBOs
(map/unmap and bind/unbind) are pretty much no-ops for CPU pixel
buffers and won't introduce any significant overhead.
This change also fixes a bug with text drop shadows: if the drop
shadow is larger than the max texture size, the renderer would leave
the GL context in a bad state and generate 0x501 errors. This change
simply skips drop shadows if they are too large.
Change-Id: I2700aadb0c6093431dc5dee3d587d689190c4e23
/frameworks/base/libs/hwui/GammaFontRenderer.cpp
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| dfab50d8b97a90dca279b119ebe439f595616ffa |
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19-Jul-2012 |
Romain Guy <romainguy@google.com> |
Tweak text gamma correction
Change-Id: Icd3326e6a054d6020c3ed61c8459394bc87401dd
/frameworks/base/libs/hwui/GammaFontRenderer.cpp
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| 6e25e38e43f9e7f71397dfab7ed32c81c7bf7d46 |
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19-Jul-2012 |
Romain Guy <romainguy@google.com> |
Add a new method for text gamma correction
To select the gamma correction method, adb shell setprop hwui.text_gamma_correction
with one of the following values:
lookup3
lookup
shader3
shader
See Properties.h for more information about these different methods.
You can also control gamma correction using the following properties:
hwui.text_gamma
hwui.text_gamma.black_threshold
hwui.text_gamma.white_threshold
Change-Id: I47970b804d2c590c37d3da5008db094241579e25
/frameworks/base/libs/hwui/GammaFontRenderer.cpp
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| 4121063313ac0d6f69f6253cac821d0c1c122086 |
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17-Jul-2012 |
Romain Guy <romainguy@google.com> |
Add shader-based text gamma correction
To enable it, the system property ro.hwui.text_gamma_shader must be
set to true. For testing, DEBUG_FONT_RENDERER_FORCE_SHADER_GAMMA
can be set to 1 in libhwui/Debug.h.
Change-Id: If345c6b71b67ecf1ef2e8847b71f30f3ef251a27
/frameworks/base/libs/hwui/GammaFontRenderer.cpp
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| b1d0a4ed21168fefcb82232c8f22cb95d60acb85 |
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14-Jul-2012 |
Romain Guy <romainguy@google.com> |
Refactor GammaFontRenderer
This change is the first step to a shader-based text antialias
gamma correction.
Change-Id: I9eb02d4c56cb95d05219f712290c865b46141954
/frameworks/base/libs/hwui/GammaFontRenderer.cpp
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| 9a8245629d69d81e0b62e52970feaf9c02580e75 |
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17-Dec-2011 |
Chet Haase <chet@google.com> |
De-allocate caches for large glyphs when trimming memory
Currently, font renderers eliminate some texture caches when
memory is trimmed. This change makes it go further by eliminating the
large-glyph caches for all font renderers. These caches are
only allocated as needed, but continue to consume large amounts of
memory (CPU and GPU) after that allocation. De-allocating this memory
on a trim operation should prevent background apps from holding onto
this memory in the possible case that they have allocated it by drawing
large glyphs.
Change-Id: Id7a3ab49b244e036b442d87252fb40aeca8fdb26
/frameworks/base/libs/hwui/GammaFontRenderer.cpp
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| eca0ca2424afc1e98912405906edfc32f7733e16 |
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04-Nov-2011 |
Romain Guy <romainguy@google.com> |
Memory optimizations for libhwui
Bug #5566149
Lazily initialize font renderers
Keep 60% of the texture cache when an app goes to the background
Delete least used font renderer when going to the background
Delete all font renderers on full memory trim
Change-Id: I3c2454d46dc1107ec0f0f72a9ce69cbbcc8825e7
/frameworks/base/libs/hwui/GammaFontRenderer.cpp
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| c9855a53edfac818dc68714557185977556f849d |
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22-Jan-2011 |
Romain Guy <romainguy@google.com> |
Log only 1 line per process when using OpenGLRenderer.
Change-Id: Idbdd6b84f31301e58ed53e0d50fd61fece192dfa
/frameworks/base/libs/hwui/GammaFontRenderer.cpp
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| b45c0c9774bd19a9dbe77d149abae4e124b08bf6 |
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27-Aug-2010 |
Romain Guy <romainguy@google.com> |
Apply gamma correction to font rendering.
Change-Id: I1b05f40e356221b2a5eb9400e67d77ecd98ed6c4
/frameworks/base/libs/hwui/GammaFontRenderer.cpp
|