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Code Issues Releases Activity

hevcdec: Use LOCAL_ALIGNED_* for declaring local variables with alignment

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Not all compilers can do alignment larger than the normal stack alignment
for variables on the stack. In these cases, the LOCAL_ALIGNED_* macros
produce the workaround alignment wrapper consisting of a padded array
and a pointer variable.

This fixes the hevc fate tests on RVCT/ARMCC after adding IDCT assembly
that actually assumes/relies on this alignment.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2017-03-28 12:53:58 +03:00
parent fbc6f190a6
commit e788ca05a7
1 changed files with 12 additions and 10 deletions
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22
libavcodec/hevcdec.c
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@ -917,8 +917,8 @@ static void hls_residual_coding(HEVCContext *s, int x0, int y0,
int vshift = s->ps.sps->vshift[c_idx];
uint8_t *dst = &s->frame->data[c_idx][(y0 >> vshift) * stride +
((x0 >> hshift) << s->ps.sps->pixel_shift)];
DECLARE_ALIGNED(32, int16_t, coeffs[MAX_TB_SIZE * MAX_TB_SIZE]) = { 0 };
DECLARE_ALIGNED(8, uint8_t, significant_coeff_group_flag[8][8]) = { { 0 } };
LOCAL_ALIGNED_32(int16_t, coeffs, [MAX_TB_SIZE * MAX_TB_SIZE]);
LOCAL_ALIGNED_8(uint8_t, significant_coeff_group_flag, [8], [8]);
int trafo_size = 1 << log2_trafo_size;
int i, qp, shift, add, scale, scale_m;
@ -926,6 +926,8 @@ static void hls_residual_coding(HEVCContext *s, int x0, int y0,
const uint8_t *scale_matrix;
uint8_t dc_scale;
memset(coeffs, 0, sizeof(int16_t) * MAX_TB_SIZE * MAX_TB_SIZE);
memset(significant_coeff_group_flag, 0, sizeof(uint8_t) * 8 * 8);
// Derive QP for dequant
if (!lc->cu.cu_transquant_bypass_flag) {
static const int qp_c[] = {
@ -1755,8 +1757,8 @@ static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
}
if (current_mv.pred_flag[0] && !current_mv.pred_flag[1]) {
DECLARE_ALIGNED(16, int16_t, tmp[MAX_PB_SIZE * MAX_PB_SIZE]);
DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
LOCAL_ALIGNED_16(int16_t, tmp, [MAX_PB_SIZE * MAX_PB_SIZE]);
LOCAL_ALIGNED_16(int16_t, tmp2, [MAX_PB_SIZE * MAX_PB_SIZE]);
luma_mc(s, tmp, tmpstride, ref0->frame,
&current_mv.mv[0], x0, y0, nPbW, nPbH, pred_idx);
@ -1789,8 +1791,8 @@ static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
s->hevcdsp.put_unweighted_pred_chroma[pred_idx](dst2, s->frame->linesize[2], tmp2, tmpstride, nPbH / 2);
}
} else if (!current_mv.pred_flag[0] && current_mv.pred_flag[1]) {
DECLARE_ALIGNED(16, int16_t, tmp [MAX_PB_SIZE * MAX_PB_SIZE]);
DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
LOCAL_ALIGNED_16(int16_t, tmp, [MAX_PB_SIZE * MAX_PB_SIZE]);
LOCAL_ALIGNED_16(int16_t, tmp2, [MAX_PB_SIZE * MAX_PB_SIZE]);
luma_mc(s, tmp, tmpstride, ref1->frame,
&current_mv.mv[1], x0, y0, nPbW, nPbH, pred_idx);
@ -1822,10 +1824,10 @@ static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
s->hevcdsp.put_unweighted_pred_chroma[pred_idx](dst2, s->frame->linesize[2], tmp2, tmpstride, nPbH / 2);
}
} else if (current_mv.pred_flag[0] && current_mv.pred_flag[1]) {
DECLARE_ALIGNED(16, int16_t, tmp [MAX_PB_SIZE * MAX_PB_SIZE]);
DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
DECLARE_ALIGNED(16, int16_t, tmp3[MAX_PB_SIZE * MAX_PB_SIZE]);
DECLARE_ALIGNED(16, int16_t, tmp4[MAX_PB_SIZE * MAX_PB_SIZE]);
LOCAL_ALIGNED_16(int16_t, tmp, [MAX_PB_SIZE * MAX_PB_SIZE]);
LOCAL_ALIGNED_16(int16_t, tmp2, [MAX_PB_SIZE * MAX_PB_SIZE]);
LOCAL_ALIGNED_16(int16_t, tmp3, [MAX_PB_SIZE * MAX_PB_SIZE]);
LOCAL_ALIGNED_16(int16_t, tmp4, [MAX_PB_SIZE * MAX_PB_SIZE]);
luma_mc(s, tmp, tmpstride, ref0->frame,
&current_mv.mv[0], x0, y0, nPbW, nPbH, pred_idx);