Commit Graph

15 Commits

Author SHA1 Message Date
The Android Open Source Project 67e6fcd195 merge from froyo-plus-aosp
Change-Id: Ie231effb4d9dfd63aa98ec08b269c31ce32aa1c0
2010-06-21 11:50:42 -07:00
Jean-Baptiste Queru 62f4d86b7c Fix build - cpu-features is ARM-specific
Change-Id: I66521f279545a249e3dcb645914f7b66f23cef21
2010-06-15 08:19:56 -07:00
Martyn Capewell 4dc1fa8e8d Adds support for UBFX to JIT and Disassembler
This introduces UBFX instruction generation abilities to the Pixelflinger JIT,
and also modifies the component extraction function to generate the
instruction.

The extract function contains defines to prevent generation of UBFX on pre-v7
cores. The JIT itself retains the ability to produce the instruction even on
v5/6.

This patch only generates UBFX when MOV, AND or BIC can't be used. Based on
the TRM, this appears to be faster on A9 than using UBFX in all cases.

On startup, Pixelflinger JITs three chunks of code. UBFX improves these as
follows:

 00000077:03515104_00000000_00000000
 (Blends a single colour into an RGB565 buffer.)
  Before: 27 inst/pixel, After: 24 inst/pixel, Improvement: 12.5%
 00000077:03545404_00000A01_00000000
 (Blends RGBA8888 texture into an RGB565 buffer using alpha.)
  Before: 30 inst/pixel, After: 27 inst/pixel, Improvement: 11.1%
 00000077:03545404_00000A04_00000000
 (Blends RGB565 texture into an RGB565 buffer using alpha.)
  Before: 29 inst/pixel, After: 27 inst/pixel, Improvement: 7.4%
2010-05-28 17:04:36 +01:00
Nick Kralevich beeeee705b Allow pixelflinger to work when NX (No Execute) is enabled.
Instead of allocating memory from the (non executable) heap,
allocate memory using mspace and ensure that we use mprotect
to mark it as PROT_EXEC.  This allows pixelflinger to
continue to work even when NX protections are enabled.

Testing: Using the ApiDemos market app, verify that
Apidemos -> Graphics -> OpenGL ES -> GLSurfaceView
works when "adb shell setprop debug.egl.hw 0" is set.

Change-Id: Ib569cd2543c6fa25688ee76325a712bc2347450b
2010-05-07 16:35:52 -07:00
Bruce Beare 2bef93cc20 cpu-features.h is only available for ARM
Change-Id: I1e8001a1875bfd9cebfe18dfd757556b55c8213c
2010-05-04 15:35:09 -07:00
Jean-Baptiste Queru 9b6c850d24 fix sim build
Change-Id: Ide300eafbcbbc6dfae25fe86188302c6676c4a3b
2010-05-03 12:31:13 -07:00
Martyn Capewell f42d2fac2b Fix LDM addressing mode disassembly
The Pixelflinger disassembler does not handle LDM addressing modes correctly,
assuming that the P and U bits in the instruction mean the same in both LDM and
STM. This results in the disassembler producing sequences like:

  stmfd r13!, {r4-r11, r14}
  ...
  ...
  ...
  ldmea r13!, {r4-r11, r14}

This small patch fixes it by EORing the P and U bits with the Load/Store bit.

Change-Id: Ic7a1556642c4e29415fc3697019f1239b6c26fc2
2010-04-29 09:13:48 -07:00
Martyn Capewell 96dbb4fc58 Adds UXTB16 support to Pixelflinger
* Add support for UXTB16 to the disassembler
 * Add encoding of the UXTB16 instruction to the Pixelflinger JIT.

Introducing the UXTB16 instruction allows removal of some masking code, and is
beneficial from a pipeline point of view - lots of UXTB16 followed by MUL
sequences.

Also, further rescheduling and use of SMULWB brings extra performance
improvements.

 * Use UXTB16 in bilinear filtered texturing

Uses UXTB16 to extract channels for SIMD operations, rather than creating and
ANDing with masks. Saves a register and is faster on A8, as UXTB16 result can
feed into first stage of multiply, unlike AND.

Also, used SMULWB rather than SMULBB, which allows removal of MOVs used to
rescale results.

Code has been scheduled for A8 pipeline, specifically aiming to allow
multiplies to issue in pipeline 0, for efficient dual issue operation.

Testing on SpriteMethodTest (http://code.google.com/p/apps-for-android/) gives
8% improvement (12.7 vs. 13.7 fps.)

SMULBB to SMULWB trick could be used in <v6 code path, but this hasn't been
implemented.
2009-12-07 13:59:59 +00:00
Jean-Baptiste Queru 4b29fe640a eclair snapshot 2009-11-12 18:46:23 -08:00
Mathias Agopian 006ba85e98 fix 1650170 pixelflinger depends on KeyedVector.h, etc 2009-06-01 15:27:46 -07:00
The Android Open Source Project dd7bc3319d auto import from //depot/cupcake/@135843 2009-03-03 19:32:55 -08:00
The Android Open Source Project e54eebbf1a auto import from //depot/cupcake/@135843 2009-03-03 18:29:04 -08:00
The Android Open Source Project 2eef60297a auto import from //branches/cupcake/...@126645 2009-01-15 16:12:14 -08:00
The Android Open Source Project 35237d1358 Code drop from //branches/cupcake/...@124589 2008-12-17 18:08:08 -08:00
The Android Open Source Project 4f6e8d7a00 Initial Contribution 2008-10-21 07:00:00 -07:00