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revert 9ea0a36fc6

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needs a branch with more work to be done, partial inlining that is invisible to performance (5kb which is nothing), PGO + BOLT optimization path yielding better results regardless
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Collecting
2025-12-28 22:32:56 +00:00
parent 989049df07
commit b8424f9057
1 changed files with 0 additions and 26 deletions
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26
externals/bc_decoder/bc_decoder.cpp vendored
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@@ -1,7 +1,6 @@
// SPDX-License-Identifier: MPL-2.0
// Copyright © 2022 Skyline Team and Contributors (https://github.com/skyline-emu/)
// Copyright 2019 The SwiftShader Authors. All Rights Reserved.
// SPDXFileCopyrightText: 2025 citron Emulator Project
// This BCn Decoder is directly derivative of Swiftshader's BCn Decoder found at: https://github.com/google/swiftshader/blob/d070309f7d154d6764cbd514b1a5c8bfcef61d06/src/Device/BC_Decoder.cpp
// This file does not follow the Skyline code conventions but has certain Skyline specific code
@@ -17,11 +16,6 @@ namespace {
constexpr int BlockHeight = 4;
struct BC_color {
#if defined(__clang__) || defined(__GNUC__)
__attribute__((always_inline))
#elif defined(_MSC_VER)
__forceinline
#endif
void decode(uint8_t *dst, size_t x, size_t y, size_t dstW, size_t dstH, size_t dstPitch, size_t dstBpp, bool hasAlphaChannel, bool hasSeparateAlpha) const {
Color c[4];
c[0].extract565(c0);
@@ -36,9 +30,6 @@ namespace {
}
}
#ifdef __clang__
#pragma clang loop vectorize(enable) interleave(enable)
#endif
for (int j = 0; j < BlockHeight && (y + j) < dstH; j++) {
size_t dstOffset = j * dstPitch;
size_t idxOffset = j * BlockHeight;
@@ -117,11 +108,6 @@ namespace {
static_assert(sizeof(BC_color) == 8, "BC_color must be 8 bytes");
struct BC_channel {
#if defined(__clang__) || defined(__GNUC__)
__attribute__((always_inline))
#elif defined(_MSC_VER)
__forceinline
#endif
void decode(uint8_t *dst, size_t x, size_t y, size_t dstW, size_t dstH, size_t dstPitch, size_t dstBpp, size_t channel, bool isSigned) const {
int c[8] = {0};
@@ -145,9 +131,6 @@ namespace {
c[7] = isSigned ? 127 : 255;
}
#ifdef __clang__
#pragma clang loop vectorize(enable) interleave(enable)
#endif
for (size_t j = 0; j < BlockHeight && (y + j) < dstH; j++) {
for (size_t i = 0; i < BlockWidth && (x + i) < dstW; i++) {
dst[channel + (i * dstBpp) + (j * dstPitch)] = static_cast<uint8_t>(c[getIdx((j * BlockHeight) + i)]);
@@ -166,16 +149,8 @@ namespace {
static_assert(sizeof(BC_channel) == 8, "BC_channel must be 8 bytes");
struct BC_alpha {
#if defined(__clang__) || defined(__GNUC__)
__attribute__((always_inline))
#elif defined(_MSC_VER)
__forceinline
#endif
void decode(uint8_t *dst, size_t x, size_t y, size_t dstW, size_t dstH, size_t dstPitch, size_t dstBpp) const {
dst += 3; // Write only to alpha (channel 3)
#ifdef __clang__
#pragma clang loop vectorize(enable) interleave(enable)
#endif
for (size_t j = 0; j < BlockHeight && (y + j) < dstH; j++, dst += dstPitch) {
uint8_t *dstRow = dst;
for (size_t i = 0; i < BlockWidth && (x + i) < dstW; i++, dstRow += dstBpp) {
@@ -1545,4 +1520,3 @@ namespace bcn {
block->decode(dst, x, y, width, height, pitch);
}
}