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path: root/vp9/common/vp9_idct.c
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2017-05-03Update highbd idct functions arguments to use uint16_t dstLinfeng Zhang
BUG=webm:1388 Change-Id: I3581d80d0389b99166e70987d38aba2db6c469d5
2017-05-03Clean CONVERT_TO_BYTEPTR/SHORTPTR in idctLinfeng Zhang
BUG=webm:1388 Change-Id: Ida62c941f2b836d6c9e27b427a7d5008ab6dc112
2017-03-08Add vpx_highbd_idct32x32_135_add_c()Linfeng Zhang
When eob is less than or equal to 135 for high-bitdepth 32x32 idct, call this function. BUG=webm:1301 Change-Id: I8a5864f5c076e449c984e602946547a7b09c9fe6
2017-02-14Add vpx_highbd_idct16x16_38_add_c()Linfeng Zhang
When eob is less than or equal to 38 for high-bitdepth 16x16 idct, call this function. BUG=webm:1301 Change-Id: I09167f89d29c401f9c36710b0fd2d02644052060
2017-02-07Add vpx_idct16x16_38_add_c()Linfeng Zhang
When eob is less than or equal to 38 for 16x16 idct, call this function. Change-Id: Ief6f3fb16a49ace3c92cebf4e220bf5bf52a6087
2016-11-07Rename vpx_highbd_idct8x8_10{*}() to vpx_highbd_idct8x8_12{*}()Linfeng Zhang
Also update its trigger threshold from 10 to 12. Change-Id: Ib8dddd87a5a22a12ca66e7084d342fbb027b0a2f
2016-10-03Move highbd txfm input range check from 2d iht transform to 1d idct/iadstAngie Chiang
This change will make the highbd txfm input range check more comprehensive The 25-bit highbd input range is composed by 12 signal input bits + 7 bits for 2D forward transform amplification + 5 bits for 1D inverse transform amplification + 1 bit for contingency in rounding and quantizing BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1286 BUG=https://bugs.chromium.org/p/chromium/issues/detail?id=651625 Change-Id: I04c0796edd7653f8d463fba5dc418132986131e7
2016-09-24Merge "vp9_idct: delete dead TODOs"James Zern
2016-09-21Detect invalid highbd iht inputAngie Chiang
Do nothing in vp9_highbd_iht#x#_##_add_c when input magnitude is beyond 20 bits. Note that, sign bit is not included here. In the 20 bits, we use 12 bits for input signal, 7 bits for forward transform amplification, and 1 bit for contingency in rounding and quantizing BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1286 Change-Id: I332c6f68df4614fc2e7d2dc4c5bb0d0cff8a245c
2016-09-20vp9_idct: delete dead TODOsJames Zern
Change-Id: Icdd5494f557d83026dc078bce37997a76aa288fb
2016-08-02vp9/common: apply clang-formatclang-format
Change-Id: Ie0f150fdcfcbf7c4db52d3a08bc8238ed1c72e3b
2015-12-02VP9: Add ssse3 version of vpx_idct32x32_135_add()Scott LaVarnway
Change-Id: I9a780131efaad28cf1ad233ae64c5c319a329727
2015-08-10Move vp9_systemdependent.h to vpx_ports bitops.h and system_state.hAlex Converse
Use system_state.h in vpx_dsp and remove unneeded includes of vp9_systemdependent.h. Change-Id: I92557ec6dd5aa790160b4f31fe7967db0d7ec3c4
2015-08-04Replace vp9_ prefix with vpx_ prefix in vpx_dsp function namesJingning Han
This commit clears the function naming convention in vpx_dsp. It replaces vp9_ prefix of global functions with vpx_ prefix. It also removes the vp9_ prefix from static functions. Change-Id: I6394359a63b71a51dda01342eec6a3cc08dfeedf
2015-07-31Factor inverse transform functions into vpx_dspJingning Han
This commit moves the module inverse transform functions from vp9 to vpx_dsp folder. The hybrid transform wrapper functions stay in the vp9 folder, since it involves codec-specific data structures. Change-Id: Ib066367c953d3d024c73ba65157bbd70a95c9ef8
2015-05-13Relocate memory operations for common codeJohann
With the sad functions, and hopefully the variance functions soon, moving to the vpx_dsp location, place the defines used in the reference C code in a common location. Change-Id: I4c8ce7778eb38a0a3ee674d2f1c488eda01cfeca
2015-04-28vpx_mem: remove vpx_memsetJames Zern
vestigial. replace instances with memset() which they already were being defined to. Change-Id: Ie030cfaaa3e890dd92cf1a995fcb1927ba175201
2015-01-06Enable coefficient range checking for 10-/12-bitDeb Mukherjee
Also fixes a broken build with --enable-coefficient-range-checking configuration option. Change-Id: Icc536f53088e8cec59dfb8f635668555fdb9125e
2014-11-24Refactored idct routines and headersPeter de Rivaz
This change is made in preparation for a subsequent patch which adds acceleration for the highbitdepth transform functions. The highbitdepth transform functions attempt to use 16/32bit sse instructions where possible, but fallback to using the C implementations if potential overflow is detected. For this reason the dct routines are made global so they can be called from the acceleration functions in the subsequent patch. Change-Id: Ia921f191bf6936ccba4f13e8461624b120c1f665 (cherry picked from commit 454342d4e77dbb67f4a3c10f97a57a6fcb46d9a0)
2014-11-07Iadst transforms to use internal low precisionDeb Mukherjee
Change-Id: I266777d40c300bc53b45b205144520b85b0d6e58 (cherry picked from commit a1b726117f5470f227bc90cd030b7d25045dc510)
2014-11-05Fix visual studio 2013 compiler warningsYaowu Xu
For configured with --enable-vp9-highbitdepth Change-Id: I2b181519d7192f8d7a241ad5760c3578255f24e6
2014-10-09Rename highbitdepth functions to use highbd prefixDeb Mukherjee
Uses highbd_ prefix convention consistently. Change-Id: I58f7f799a7ff8e32701bcd71c955bcf1cdd4581e
2014-10-06Add range check in inverse ADST 16x16Jingning Han
Bit-stream clarification related to Issue 868. Change-Id: I92a7bc5b7782c9ea5c3f6cceec761742183c9514
2014-10-04Some data type changes in vp9_idct.cDeb Mukherjee
Resolves a visual studio warning, and includes some cleanups. Change-Id: I6a7576ef323c475b7d1c659800cd82c6cb1fd18d
2014-10-03Incorporate WRAPLOW macro into non-highbitdepth txDeb Mukherjee
Incorporates the WRAPLOW macro into the non-highbitdepth transforms to aid hardware verification between a software C model and an intended hardware implementation though the use of the configure options: --enable-experimental --enable-emulate-hardware. Note that to avoid further discrepancies between the sse/sse2 implementations of the transforms and the C implementation, when the emulate hardware option is invoked, we also disable sse/sse2/etc. Also incudes some minor cleanups/renaming etc. Change-Id: Ib864d8493313927d429cce402982f1c8e45b3287
2014-09-30Remove redundant header file declarationJingning Han
Some header file in vp9_idct.c has been included in vp9_idct.h. This commit removes these redundant declarations. Change-Id: I0238c27e4efff5c981eb437022c6bc6970c4e445
2014-09-11Adds high bitdepth transform functions and testsDeb Mukherjee
Adds various high bitdepth transform functions and tests. Much of the changes are related to using typedefs tran_low_t and tran_high_t for the final transform cofficients and intermediate stages of the transform computation respectively rather than fixed types int16_t/int. When vp9_highbitdepth configure flag is off, these map tp int16_t/int32_t, but when the flag is on, they map to int32_t/int64_t to make space for needed extra precision. Change-Id: I3c56de79e15b904d6f655b62ffae170729befdd8
2014-05-08Change eob threshold for partial inverse 8x8 2D-DCT to 12Jingning Han
The scanning order has the first 12 coefficients of the 8x8 2D-DCT sitting in the top left 4x4 block. Hence the partial inverse 8x8 2D-DCT allows to handle cases with eob below 12. The overall runtime of the inverse 8x8 2D-DCT unit is reduced from 166 cycles (using SSE2) to 150 cycles (using SSSE3). Change-Id: I4514f9748042809ac84df4c14382c00f313f1cd2
2014-01-27Removing _1d suffix from transform names.Dmitry Kovalev
It is enough to specify (e.g.) idct16, it is obviously different from idct16x16. Change-Id: I6b408a37a945de3162429380b59a775b03b95db0
2013-11-20Remove unnecessary eob checking.hkuang
Change-Id: Ia568f70bddc1a2b62141a0197459119ca74c22b5
2013-11-14Fix coding format in vp9_idctJingning Han
Change-Id: If97ae16a4478717933345b6b9d5bc1b417b8dd84
2013-10-24Add 32x32 idct function for eob<=34 caseYunqing Wang
When only upper-left 8x8 area has non-zero dct coefficients, we could skip 1D IDCT for 9th to 32th rows to save operations. This function is called when eob <= 34. Change-Id: I9684b75947bdde346cfe3720f08a953aa7a13fb5
2013-10-11Making input pointer of any inverse transform constant.Dmitry Kovalev
Also renaming dest_stride to stride in some places. Change-Id: I75f602b623a5a7071d4922b747c45fa0b7d7a940
2013-10-11Consistent names for inverse hybrid transforms (2 of 2).Dmitry Kovalev
Renames: vp9_iht_add -> vp9_iht4x4_add vp9_iht_add_8x8 -> vp9_iht8x8_add vp9_iht_add_16x16 -> vp9_iht16x16_add Change-Id: I8f1a2913e02d90d41f174f27e4ee2fad0dbd4a21
2013-10-11Consistent names for inverse hybrid transforms (1 of 2).Dmitry Kovalev
Renames: vp9_short_iht4x4_add -> vp9_iht4x4_16_add vp9_short_iht8x8_add -> vp9_iht8x8_64_add vp9_short_iht16x16_add_c -> vp9_iht16x16_256_add Change-Id: Ibca7a188fd062b196787ac5efc1ea545e7f166c0
2013-10-11Adding const to the input argument of all 1D transforms.Dmitry Kovalev
Also adding static to iadst16_1d and fadst16 functions. Change-Id: I13c7df3b776f0f8efc6e80099bdb0a2f6d29edaf
2013-10-10Removing vp9_idct4_1d_sse2 function.Dmitry Kovalev
We have two SSE2-optimized functions for idct4_1d: vp9_idct4_1d_sse2 <-- removing this one idct4_1d_sse2 vp9_idct4_1d_sse2 was used only by the following functions which already have SSE2 optimized variants: vp9_idct4x4_16_add_c -> vp9_idct4x4_16_add_see2 idct8_1d -> vp9_idct8x8_{16, 10, 1}_see2 vp9_short_iht4x4_add_c -> vp9_short_iht4x4_add_see2 Change-Id: Ib0a7f6d1373dbaf7a4a41208cd9d0671fdf15edb
2013-10-10Giving consistent names to IDCT 32x32 functions.Dmitry Kovalev
Renames: vp9_short_idct32x32_add -> vp9_idct32x32_1024_add vp9_short_idct32x32_1_add -> vp9_idct32x32_1_add vp9_idct_add_32x32 -> vp9_idct32x32_add Change-Id: Id85306f5814bac6c47463a6b5901a93082510666
2013-10-10Merge "Giving consistent names to IDCT 16x16 functions."Dmitry Kovalev
2013-10-08All zero coeff skip in IDCT 32x32Jingning Han
When all coefficients are zeros, skip the corresponding 1-D inverse transform. This practice has been used in the SSE2 implementation of inverse 32x32 DCT. This commit imports this algorithm into the C code. Change-Id: I0f58bfcb183a569fab85d524d5d9cf8ae8653f86
2013-10-07Giving consistent names to IDCT 16x16 functions.Dmitry Kovalev
Renames: vp9_short_idct16x16_add -> vp9_idct16x16_256_add vp9_short_idct16x16_10_add -> vp9_idct16x16_10_add vp9_short_idct16x16_1_add -> vp9_idct16x16_1_add vp9_idct_add_16x16 -> vp9_idct16x16_add Change-Id: Ief8a3904de78deab0f4ede944c4d0339c228cfc3
2013-10-06Giving consistent names to IDCT 8x8 functions.Dmitry Kovalev
Renames: vp9_short_idct8x8_add -> vp9_idct8x8_64_add vp9_short_idct8x8_1_add -> vp9_idct8x8_1_add vp9_short_idct8x8_10_add -> vp9_idct8x8_10_add vp9_idct_add_8x8 -> vp9_idct8x8_add Change-Id: Ifb8d3a45b4c0397aa805b30463f3d14581bf72c1
2013-10-04Giving consistent names to IDCT/IWHT functions.Dmitry Kovalev
The idea is to have the following names for each transform size: vp9_idct4x4_add vp9_idct4x4_1_add vp9_idct4x4_10_add vp9_idct4x4_16_add vp9_idct8x8_add vp9_idct8x8_1_add vp9_idct8x8_10_add vp9_idct8x8_64_add etc for 16x16, 32x32 The actual list of renames in this patch: vp9_idct_add_lossless -> vp9_iwht4x4_add vp9_short_iwalsh4x4_add -> vp9_iwht4x4_16_add vp9_short_iwalsh4x4_1_add -> vp9_iwht4x4_1_add vp9_idct_add -> vp9_idct4x4_add vp9_short_idct4x4_add -> vp9_idct4x4_16_add vp9_short_idct4x4_1_add -> vp9_idct4x4_1_add Change-Id: I6f43f7437c68dd30cdd05d72e213765578ed30b1
2013-10-02Moving all idct/iht functions in one place.Dmitry Kovalev
Moving functions from vp9_idct_blk to vp9_idct because these functions are used from both encoder and decoder. Removing duplicated code from vp9_encodemb.c and reusing existing functions. Change-Id: Ia0a6782f8c4c409efb891651b871dd4bf22d5fe8
2013-09-30Removing vp9_add_constant_residual_{8x8, 16x16, 32x32} functions.Dmitry Kovalev
We don't need these functions anymore. The only one which was actually used is vp9_add_constant_residual_32x32. Addition of vp9_short_idct32x32_1_add eliminates this single usage. SSE2 optimized version of vp9_short_idct32x32_1_add will be added in the next patch set, right now it is only C implementation. Now we have all idct functions implemented in a consistent manner. Change-Id: I63df79a13cf62aa2c9360a7a26933c100f9ebda3
2013-09-27Renaming vp9_short_idct10_8x8_add to vp9_short_idct8x8_10_add.Dmitry Kovalev
Making name consistent with vp9_short_idct8x8 and vp9_short_idct8x8_1. Change-Id: I99e0be040ec893f9571dcf090e18f98dc58339f5
2013-09-26Renaming vp9_short_idct10_16x16 to vp9_short_idct16x16_10.Dmitry Kovalev
Making function name consistent with vp9_short_idct16x16 and vp9_short_idct16x16_1. Change-Id: I70e54be9e6b9a1dddab0de470686591e96d05517
2013-09-24Rename defined constantsYaowu Xu
The change is to better reflect the nature of the constants. Change-Id: Icabac6e9bceefbdb3f03f8218f88ef75943c30fb
2013-08-01Remove unused vp9_short_idct10_32x32_addJingning Han
The inverse 32x32 transform detects all zero entries and skips the computations accordingly per 8 rows in the first 1-D operation. The function vp9_short_idct10_32x32_add performs differently and is not used anywhere, hence removed. Change-Id: Ic4fad422debbde7b6b6ffed47c69fbd4268a906c
2013-07-2916x16 inverse 2D-DCT with DC onlyJingning Han
This commit provides special handle on 16x16 inverse 2D-DCT, where only DC coefficient is quantized to be non-zero value. Change-Id: I7bf71be7fa13384fab453dc8742b5b50e77a277c
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