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;
; Copyright (c) 2017 The WebM project authors. All Rights Reserved.
;
; Use of this source code is governed by a BSD-style license
; that can be found in the LICENSE file in the root of the source
; tree. An additional intellectual property rights grant can be found
; in the file PATENTS. All contributing project authors may
; be found in the AUTHORS file in the root of the source tree.
;
; TODO(johannkoenig): Add the necessary include guards to vpx_config.asm.
; vpx_config.asm is not guarded so can not be included twice. Because this will
; be used in conjunction with x86_abi_support.asm or x86inc.asm, it must be
; included after those files.
; Increment register by sizeof() tran_low_t * 8.
%macro INCREMENT_TRAN_LOW 1
%if CONFIG_VP9_HIGHBITDEPTH
add %1, 32
%else
add %1, 16
%endif
%endmacro
; Increment %1 by sizeof() tran_low_t * %2.
%macro INCREMENT_ELEMENTS_TRAN_LOW 2
%if CONFIG_VP9_HIGHBITDEPTH
lea %1, [%1 + %2 * 4]
%else
lea %1, [%1 + %2 * 2]
%endif
%endmacro
; Load %2 + %3 into m%1.
; %3 is the offset in elements, not bytes.
; If tran_low_t is 16 bits (low bit depth configuration) then load the value
; directly. If tran_low_t is 32 bits (high bit depth configuration) then pack
; the values down to 16 bits.
%macro LOAD_TRAN_LOW 3
%if CONFIG_VP9_HIGHBITDEPTH
mova m%1, [%2 + (%3) * 4]
packssdw m%1, [%2 + (%3) * 4 + 16]
%else
mova m%1, [%2 + (%3) * 2]
%endif
%endmacro
; Store m%1 to %2 + %3.
; %3 is the offset in elements, not bytes.
; If 5 arguments are provided then m%1 is corrupted.
; If 6 arguments are provided then m%1 is preserved.
; If tran_low_t is 16 bits (low bit depth configuration) then store the value
; directly. If tran_low_t is 32 bits (high bit depth configuration) then sign
; extend the values first.
; Uses m%4-m%6 as scratch registers for high bit depth.
%macro STORE_TRAN_LOW 5-6
%if CONFIG_VP9_HIGHBITDEPTH
pxor m%4, m%4
mova m%5, m%1
%if %0 == 6
mova m%6, m%1
%endif
pcmpgtw m%4, m%1
punpcklwd m%5, m%4
%if %0 == 5
punpckhwd m%1, m%4
%else
punpckhwd m%6, m%4
%endif
mova [%2 + (%3) * 4 + 0], m%5
%if %0 == 5
mova [%2 + (%3) * 4 + 16], m%1
%else
mova [%2 + (%3) * 4 + 16], m%6
%endif
%else
mova [%2 + (%3) * 2], m%1
%endif
%endmacro
; Store zeros (in m%1) to %2 + %3.
; %3 is the offset in elements, not bytes.
%macro STORE_ZERO_TRAN_LOW 3
%if CONFIG_VP9_HIGHBITDEPTH
mova [%2 + (%3) * 4 + 0], m%1
mova [%2 + (%3) * 4 + 16], m%1
%else
mova [%2 + (%3) * 2], m%1
%endif
%endmacro
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