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LibVideo: Combine VP9's Intra- and InterMode enums into PredictionMode

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The two different mode sets are stored in single fields, and the
underlying values didn't overlap, so there was no reason to keep them
separate.

The enum is now an enum class as well, to enforce that almost all uses
of the enum are named. The only case where underlying values are used
is in lookup tables, but it may be worth abstracting that as well to
make array bounds more clear.
This commit is contained in:
Zaggy1024 2022-11-05 17:45:53 -05:00 • committed by Andrew Kaster
parent 1c6d0a9777
commit 981997c039
6 changed files with 61 additions and 65 deletions
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21
Userland/Libraries/LibVideo/VP9/TreeParser.cpp
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@ -5,9 +5,10 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "TreeParser.h"
#include "Enums.h"
#include "LookupTables.h"
#include "Parser.h"
#include "TreeParser.h"
namespace Video::VP9 {
@ -34,7 +35,7 @@ template ErrorOr<int> TreeParser::parse_tree(SyntaxElementType);
template ErrorOr<bool> TreeParser::parse_tree(SyntaxElementType);
template ErrorOr<u8> TreeParser::parse_tree(SyntaxElementType);
template ErrorOr<u32> TreeParser::parse_tree(SyntaxElementType);
template ErrorOr<IntraMode> TreeParser::parse_tree(SyntaxElementType);
template ErrorOr<PredictionMode> TreeParser::parse_tree(SyntaxElementType);
template ErrorOr<TXSize> TreeParser::parse_tree(SyntaxElementType);
template ErrorOr<InterpolationFilter> TreeParser::parse_tree(SyntaxElementType);
template ErrorOr<ReferenceMode> TreeParser::parse_tree(SyntaxElementType);
@ -214,21 +215,21 @@ u8 TreeParser::calculate_partition_probability(u8 node)
u8 TreeParser::calculate_default_intra_mode_probability(u8 node)
{
u32 above_mode, left_mode;
PredictionMode above_mode, left_mode;
if (m_decoder.m_mi_size >= Block_8x8) {
above_mode = AVAIL_U
? m_decoder.m_sub_modes[m_decoder.get_image_index(m_decoder.m_mi_row - 1, m_decoder.m_mi_col)][2]
: DcPred;
: PredictionMode::DcPred;
left_mode = AVAIL_L
? m_decoder.m_sub_modes[m_decoder.get_image_index(m_decoder.m_mi_row, m_decoder.m_mi_col - 1)][1]
: DcPred;
: PredictionMode::DcPred;
} else {
if (m_idy) {
above_mode = m_decoder.m_block_sub_modes[m_idx];
} else {
above_mode = AVAIL_U
? m_decoder.m_sub_modes[m_decoder.get_image_index(m_decoder.m_mi_row - 1, m_decoder.m_mi_col)][2 + m_idx]
: DcPred;
: PredictionMode::DcPred;
}
if (m_idx) {
@ -236,15 +237,15 @@ u8 TreeParser::calculate_default_intra_mode_probability(u8 node)
} else {
left_mode = AVAIL_L
? m_decoder.m_sub_modes[m_decoder.get_image_index(m_decoder.m_mi_row, m_decoder.m_mi_col - 1)][1 + m_idy * 2]
: DcPred;
: PredictionMode::DcPred;
}
}
return m_decoder.m_probability_tables->kf_y_mode_probs()[above_mode][left_mode][node];
return m_decoder.m_probability_tables->kf_y_mode_probs()[to_underlying(above_mode)][to_underlying(left_mode)][node];
}
u8 TreeParser::calculate_default_uv_mode_probability(u8 node)
{
return m_decoder.m_probability_tables->kf_uv_mode_prob()[m_decoder.m_y_mode][node];
return m_decoder.m_probability_tables->kf_uv_mode_prob()[to_underlying(m_decoder.m_y_mode)][node];
}
u8 TreeParser::calculate_intra_mode_probability(u8 node)
@ -261,7 +262,7 @@ u8 TreeParser::calculate_sub_intra_mode_probability(u8 node)
u8 TreeParser::calculate_uv_mode_probability(u8 node)
{
m_ctx = m_decoder.m_y_mode;
m_ctx = to_underlying(m_decoder.m_y_mode);
return m_decoder.m_probability_tables->uv_mode_probs()[m_ctx][node];
}