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jpegdec reimplementation (#912)

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* add jpegdec reimplementation

* reduce work memory

* fix color space

* jpegdec: cleanup results to use atmosphere style

* fix outdated comments, correct do/while bug

Co-authored-by: Michael Scire <SciresM@gmail.com>
This commit is contained in:
HookedBehemoth 2020-04-20 11:07:37 +02:00 committed by GitHub
parent b39b6f0d5b
commit 90d754f920
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
12 changed files with 735 additions and 1 deletions
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3
Makefile
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@ -63,6 +63,7 @@ dist-no-debug: all
mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000034
mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000036
mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000037
mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/010000000000003C
mkdir -p atmosphere-$(AMSVER)/atmosphere/fatal_errors
mkdir -p atmosphere-$(AMSVER)/atmosphere/config_templates
mkdir -p atmosphere-$(AMSVER)/atmosphere/config
@ -88,6 +89,7 @@ dist-no-debug: all
cp stratosphere/fatal/fatal.nsp atmosphere-$(AMSVER)/atmosphere/contents/0100000000000034/exefs.nsp
cp stratosphere/creport/creport.nsp atmosphere-$(AMSVER)/atmosphere/contents/0100000000000036/exefs.nsp
cp stratosphere/ro/ro.nsp atmosphere-$(AMSVER)/atmosphere/contents/0100000000000037/exefs.nsp
cp stratosphere/jpedec/jpedec.nsp atmosphere-$(AMSVER)/atmosphere/contents/010000000000003C/exefs.nsp
mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000032/flags
touch atmosphere-$(AMSVER)/atmosphere/contents/0100000000000032/flags/boot2.flag
mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000037/flags
@ -136,6 +138,7 @@ dist: dist-no-debug
cp stratosphere/sm/sm.elf atmosphere-$(AMSVER)-debug/sm.elf
cp stratosphere/spl/spl.elf atmosphere-$(AMSVER)-debug/spl.elf
cp stratosphere/erpt/erpt.elf atmosphere-$(AMSVER)-debug/erpt.elf
cp stratosphere/jpegdec/jpegdec.elf atmosphere-$(AMSVER)-debug/jpegdec.elf
cd atmosphere-$(AMSVER)-debug; zip -r ../atmosphere-$(AMSVER)-debug.zip ./*; cd ../;
rm -r atmosphere-$(AMSVER)-debug
mv atmosphere-$(AMSVER)-debug.zip out/atmosphere-$(AMSVER)-debug.zip

3
libraries/libstratosphere/include/stratosphere/ams/impl/ams_system_thread_definitions.hpp
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@ -102,6 +102,9 @@ namespace ams::impl {
AMS_DEFINE_SYSTEM_THREAD(21, erpt, Main);
AMS_DEFINE_SYSTEM_THREAD(21, erpt, IpcServer);
/* jpegdec. */
AMS_DEFINE_SYSTEM_THREAD(21, jpegdec, Main);
/* pgl. */
AMS_DEFINE_SYSTEM_THREAD(21, pgl, Main);
AMS_DEFINE_SYSTEM_THREAD(21, pgl, ProcessControlTask);

1
libraries/libvapours/include/vapours/results.hpp
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@ -24,6 +24,7 @@
/* Official. */
#include <vapours/results/cal_results.hpp>
#include <vapours/results/capsrv_results.hpp>
#include <vapours/results/creport_results.hpp>
#include <vapours/results/debug_results.hpp>
#include <vapours/results/dmnt_results.hpp>

91
libraries/libvapours/include/vapours/results/capsrv_results.hpp Normal file
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@ -0,0 +1,91 @@
/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <vapours/results/results_common.hpp>
namespace ams::capsrv {
R_DEFINE_NAMESPACE_RESULT_MODULE(206);
R_DEFINE_ERROR_RANGE(AlbumError, 2, 99);
R_DEFINE_ERROR_RESULT(AlbumWorkMemoryError, 3);
R_DEFINE_ERROR_RESULT(AlbumAlreadyOpened, 7);
R_DEFINE_ERROR_RESULT(AlbumOutOfRange, 8);
R_DEFINE_ERROR_RANGE(AlbumInvalidFileId, 10, 19);
R_DEFINE_ERROR_RESULT(AlbumInvalidApplicationId, 11);
R_DEFINE_ERROR_RESULT(AlbumInvalidTimestamp, 12);
R_DEFINE_ERROR_RESULT(AlbumInvalidStorage, 13);
R_DEFINE_ERROR_RESULT(AlbumInvalidFileContents, 14);
R_DEFINE_ERROR_RESULT(AlbumIsNotMounted, 21);
R_DEFINE_ERROR_RESULT(AlbumIsFull, 22);
R_DEFINE_ERROR_RESULT(AlbumFileNotFound, 23);
R_DEFINE_ERROR_RESULT(AlbumInvalidFileData, 24);
R_DEFINE_ERROR_RESULT(AlbumFileCountLimit, 25);
R_DEFINE_ERROR_RESULT(AlbumFileNoThumbnail, 26);
R_DEFINE_ERROR_RESULT(AlbumReadBufferShortage, 30);
R_DEFINE_ERROR_RANGE(AlbumFileSystemError, 90, 99);
R_DEFINE_ERROR_RANGE(AlbumAccessCorrupted, 94, 96);
R_DEFINE_ERROR_RESULT(AlbumDestinationAccessCorrupted, 96);
R_DEFINE_ERROR_RANGE(ControlError, 800, 899);
R_DEFINE_ERROR_RESULT(ControlResourceLimit, 820);
R_DEFINE_ERROR_RESULT(ControlNotOpened, 822);
R_DEFINE_ERROR_RESULT(NotSupported, 1023);
R_DEFINE_ERROR_RANGE(InternalError, 1024, 2047);
R_DEFINE_ERROR_RESULT(InternalJpegWorkMemoryShortage, 1212);
R_DEFINE_ERROR_RANGE(InternalFileDataVerificationError, 1300, 1399);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationEmptyFileData, 1301);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationExifExtractionFailed, 1302);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationExifAnalyzationFailed, 1303);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationDateTimeExtractionFailed, 1304);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationInvalidDateTimeLength, 1305);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationInconsistentDateTime, 1306);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationMakerNoteExtractionFailed, 1307);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationInconsistentApplicationId, 1308);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationInconsistentSignature, 1309);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationUnsupportedOrientation, 1310);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationInvalidDataDimension, 1311);
R_DEFINE_ERROR_RESULT(InternalFileDataVerificationInconsistentOrientation, 1312);
R_DEFINE_ERROR_RANGE(InternalAlbumLimitationError, 1400, 1499);
R_DEFINE_ERROR_RESULT(InternalAlbumLimitationFileCountLimit, 1401);
R_DEFINE_ERROR_RANGE(InternalSignatureError, 1500, 1599);
R_DEFINE_ERROR_RESULT(InternalSignatureExifExtractionFailed, 1501);
R_DEFINE_ERROR_RESULT(InternalSignatureMakerNoteExtractionFailed, 1502);
R_DEFINE_ERROR_RANGE(InternalAlbumSessionError, 1700, 1799);
R_DEFINE_ERROR_RESULT(InternalAlbumLimitationSessionCountLimit, 1701);
R_DEFINE_ERROR_RANGE(InternalAlbumTemporaryFileError, 1900, 1999);
R_DEFINE_ERROR_RESULT(InternalAlbumTemporaryFileCountLimit, 1901);
R_DEFINE_ERROR_RESULT(InternalAlbumTemporaryFileCreateError, 1902);
R_DEFINE_ERROR_RESULT(InternalAlbumTemporaryFileCreateRetryCountLimit, 1903);
R_DEFINE_ERROR_RESULT(InternalAlbumTemporaryFileOpenError, 1904);
R_DEFINE_ERROR_RESULT(InternalAlbumTemporaryFileGetFileSizeError, 1905);
R_DEFINE_ERROR_RESULT(InternalAlbumTemporaryFileSetFileSizeError, 1906);
R_DEFINE_ERROR_RESULT(InternalAlbumTemporaryFileReadFileError, 1907);
R_DEFINE_ERROR_RESULT(InternalAlbumTemporaryFileWriteFileError, 1908);
}

2
stratosphere/Makefile
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@ -1,4 +1,4 @@
MODULES := loader ncm pm sm boot ams_mitm spl eclct.stub ro creport fatal dmnt boot2 erpt
MODULES := loader ncm pm sm boot ams_mitm spl eclct.stub ro creport fatal dmnt boot2 erpt jpegdec
SUBFOLDERS := $(MODULES)

132
stratosphere/jpegdec/Makefile Normal file
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@ -0,0 +1,132 @@
#---------------------------------------------------------------------------------
# pull in common stratosphere sysmodule configuration
#---------------------------------------------------------------------------------
include $(dir $(abspath $(lastword $(MAKEFILE_LIST))))/../../libraries/config/templates/stratosphere.mk
#---------------------------------------------------------------------------------
# jpegdec uses libjpeg.
#---------------------------------------------------------------------------------
LIBS += -ljpeg
#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------
export OUTPUT := $(CURDIR)/$(TARGET)
export TOPDIR := $(CURDIR)
export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
$(foreach dir,$(DATA),$(CURDIR)/$(dir))
export DEPSDIR := $(CURDIR)/$(BUILD)
CFILES := $(foreach dir,$(SOURCES),$(filter-out $(notdir $(wildcard $(dir)/*.arch.*.c)) $(notdir $(wildcard $(dir)/*.board.*.c)) $(notdir $(wildcard $(dir)/*.os.*.c)), \
$(notdir $(wildcard $(dir)/*.c))))
CFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.arch.$(ATMOSPHERE_ARCH_NAME).c)))
CFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.board.$(ATMOSPHERE_BOARD_NAME).c)))
CFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.os.$(ATMOSPHERE_OS_NAME).c)))
CPPFILES := $(foreach dir,$(SOURCES),$(filter-out $(notdir $(wildcard $(dir)/*.arch.*.cpp)) $(notdir $(wildcard $(dir)/*.board.*.cpp)) $(notdir $(wildcard $(dir)/*.os.*.cpp)), \
$(notdir $(wildcard $(dir)/*.cpp))))
CPPFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.arch.$(ATMOSPHERE_ARCH_NAME).cpp)))
CPPFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.board.$(ATMOSPHERE_BOARD_NAME).cpp)))
CPPFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.os.$(ATMOSPHERE_OS_NAME).cpp)))
SFILES := $(foreach dir,$(SOURCES),$(filter-out $(notdir $(wildcard $(dir)/*.arch.*.s)) $(notdir $(wildcard $(dir)/*.board.*.s)) $(notdir $(wildcard $(dir)/*.os.*.s)), \
$(notdir $(wildcard $(dir)/*.s))))
SFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.arch.$(ATMOSPHERE_ARCH_NAME).s)))
SFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.board.$(ATMOSPHERE_BOARD_NAME).s)))
SFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.os.$(ATMOSPHERE_OS_NAME).s)))
BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
export LD := $(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
export LD := $(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------
export OFILES := $(addsuffix .o,$(BINFILES)) \
$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
-I$(CURDIR)/$(BUILD)
export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
export BUILD_EXEFS_SRC := $(TOPDIR)/$(EXEFS_SRC)
ifeq ($(strip $(CONFIG_JSON)),)
jsons := $(wildcard *.json)
ifneq (,$(findstring $(TARGET).json,$(jsons)))
export APP_JSON := $(TOPDIR)/$(TARGET).json
else
ifneq (,$(findstring config.json,$(jsons)))
export APP_JSON := $(TOPDIR)/config.json
endif
endif
else
export APP_JSON := $(TOPDIR)/$(CONFIG_JSON)
endif
.PHONY: $(BUILD) clean all
#---------------------------------------------------------------------------------
all: $(BUILD)
$(BUILD):
@[ -d $@ ] || mkdir -p $@
@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
#---------------------------------------------------------------------------------
clean:
@echo clean ...
@rm -fr $(BUILD) $(TARGET).nsp $(TARGET).npdm $(TARGET).nso $(TARGET).elf
#---------------------------------------------------------------------------------
else
.PHONY: all
DEPENDS := $(OFILES:.o=.d)
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
all : $(OUTPUT).nsp
ifeq ($(strip $(APP_JSON)),)
$(OUTPUT).nsp : $(OUTPUT).nso
else
$(OUTPUT).nsp : $(OUTPUT).nso $(OUTPUT).npdm
endif
$(OUTPUT).nso : $(OUTPUT).elf
$(OUTPUT).elf : $(OFILES)
#---------------------------------------------------------------------------------
# you need a rule like this for each extension you use as binary data
#---------------------------------------------------------------------------------
%.bin.o : %.bin
#---------------------------------------------------------------------------------
@echo $(notdir $<)
@$(bin2o)
-include $(DEPENDS)
#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------

97
stratosphere/jpegdec/jpegdec.json Normal file
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@ -0,0 +1,97 @@
{
"name": "jpegdec",
"title_id": "0x010000000000003c",
"title_id_range_min": "0x010000000000003c",
"title_id_range_max": "0x010000000000003c",
"main_thread_stack_size": "0x00004000",
"main_thread_priority": 49,
"default_cpu_id": 3,
"process_category": 0,
"is_retail": true,
"pool_partition": 2,
"is_64_bit": true,
"address_space_type": 3,
"filesystem_access": {
"permissions": "0x0"
},
"service_access": ["fatal:u", "lm"],
"service_host": ["caps:dc"],
"kernel_capabilities": [{
"type": "kernel_flags",
"value": {
"highest_thread_priority": 63,
"lowest_thread_priority": 24,
"lowest_cpu_id": 3,
"highest_cpu_id": 3
}
}, {
"type": "syscalls",
"value": {
"svcSetHeapSize": "0x01",
"svcSetMemoryPermission": "0x02",
"svcSetMemoryAttribute": "0x03",
"svcMapMemory": "0x04",
"svcUnmapMemory": "0x05",
"svcQueryMemory": "0x06",
"svcExitProcess": "0x07",
"svcCreateThread": "0x08",
"svcStartThread": "0x09",
"svcExitThread": "0x0a",
"svcSleepThread": "0x0b",
"svcGetThreadPriority": "0x0c",
"svcSetThreadPriority": "0x0d",
"svcGetThreadCoreMask": "0x0e",
"svcSetThreadCoreMask": "0x0f",
"svcGetCurrentProcessorNumber": "0x10",
"svcSignalEvent": "0x11",
"svcClearEvent": "0x12",
"svcMapSharedMemory": "0x13",
"svcUnmapSharedMemory": "0x14",
"svcCreateTransferMemory": "0x15",
"svcCloseHandle": "0x16",
"svcResetSignal": "0x17",
"svcWaitSynchronization": "0x18",
"svcCancelSynchronization": "0x19",
"svcArbitrateLock": "0x1a",
"svcArbitrateUnlock": "0x1b",
"svcWaitProcessWideKeyAtomic": "0x1c",
"svcSignalProcessWideKey": "0x1d",
"svcGetSystemTick": "0x1e",
"svcConnectToNamedPort": "0x1f",
"svcSendSyncRequestLight": "0x20",
"svcSendSyncRequest": "0x21",
"svcSendSyncRequestWithUserBuffer": "0x22",
"svcSendAsyncRequestWithUserBuffer": "0x23",
"svcGetProcessId": "0x24",
"svcGetThreadId": "0x25",
"svcBreak": "0x26",
"svcOutputDebugString": "0x27",
"svcReturnFromException": "0x28",
"svcGetInfo": "0x29",
"svcWaitForAddress": "0x34",
"svcSignalToAddress": "0x35",
"svcCreateSession": "0x40",
"svcAcceptSession": "0x41",
"svcReplyAndReceiveLight": "0x42",
"svcReplyAndReceive": "0x43",
"svcReplyAndReceiveWithUserBuffer": "0x44",
"svcCreateEvent": "0x45",
"svcCreateInterruptEvent": "0x53",
"svcReadWriteRegister": "0x4E",
"svcQueryIoMapping": "0x55",
"svcCreateDeviceAddressSpace": "0x56",
"svcAttachDeviceAddressSpace": "0x57",
"svcDetachDeviceAddressSpace": "0x58",
"svcMapDeviceAddressSpaceAligned": "0x5a",
"svcUnmapDeviceAddressSpace": "0x5c",
"svcGetSystemInfo": "0x6f",
"svcCallSecureMonitor": "0x7F"
}
}, {
"type": "min_kernel_version",
"value": "0x0030"
}, {
"type": "handle_table_size",
"value": 16
}]
}

148
stratosphere/jpegdec/source/impl/jpegdec_turbo.cpp Normal file
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@ -0,0 +1,148 @@
/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "jpegdec_turbo.hpp"
#include <jpeglib.h>
namespace ams::jpegdec::impl {
#define CAPSRV_ABORT_UNLESS(expr) do { \
const bool __capsrv_assert_res = (expr); \
AMS_ASSERT(__capsrv_assert_res); \
AMS_ABORT_UNLESS(__capsrv_assert_res); \
} while (0)
#define CAPSRV_ASSERT(expr) do { \
const bool __capsrv_assert_res = (expr); \
AMS_ASSERT(__capsrv_assert_res); \
R_UNLESS(__capsrv_assert_res, capsrv::ResultAlbumError()); \
} while (0)
namespace {
constexpr size_t LinebufferCount = 4;
constexpr size_t ColorComponents = 3;
constexpr int ImageSizeHorizonalUnit = 0x10;
constexpr int ImageSizeVerticalUnit = 0x4;
struct RGB {
u8 r, g, b;
};
struct RGBX {
u8 r, g, b, x;
};
void JpegErrorExit(j_common_ptr cinfo) {
/* ? */
}
}
Result DecodeJpeg(DecodeOutput &out, const DecodeInput &in, u8 *work, size_t work_size) {
CAPSRV_ABORT_UNLESS(util::IsAligned(in.width, ImageSizeHorizonalUnit));
CAPSRV_ABORT_UNLESS(util::IsAligned(in.height, ImageSizeVerticalUnit));
CAPSRV_ABORT_UNLESS(out.bmp != nullptr);
CAPSRV_ABORT_UNLESS(out.bmp_size >= 4 * in.width * in.height);
CAPSRV_ABORT_UNLESS(out.width != nullptr);
CAPSRV_ABORT_UNLESS(out.height != nullptr);
const size_t linebuffer_size = ColorComponents * in.width;
const size_t total_linebuffer_size = LinebufferCount * linebuffer_size;
R_UNLESS(work_size >= total_linebuffer_size, capsrv::ResultInternalJpegWorkMemoryShortage());
jpeg_decompress_struct cinfo;
std::memset(&cinfo, 0, sizeof(cinfo));
jpeg_error_mgr jerr;
std::memset(&jerr, 0, sizeof(jerr));
cinfo.err = jpeg_std_error(&jerr);
jerr.error_exit = JpegErrorExit;
/* TODO: Here Nintendo uses setjmp, on longjmp to error ResultAlbumInvalidFileData is returned. */
jpeg_create_decompress(&cinfo);
ON_SCOPE_EXIT {
jpeg_destroy_decompress(&cinfo);
};
jpeg_mem_src(&cinfo, in.jpeg, in.jpeg_size);
R_UNLESS(jpeg_read_header(&cinfo, true) == JPEG_HEADER_OK, capsrv::ResultAlbumInvalidFileData());
R_UNLESS(cinfo.image_width == in.width, capsrv::ResultAlbumInvalidFileData());
R_UNLESS(cinfo.image_height == in.height, capsrv::ResultAlbumInvalidFileData());
cinfo.out_color_space = JCS_RGB;
cinfo.dct_method = JDCT_ISLOW;
cinfo.do_fancy_upsampling = in.fancy_upsampling;
cinfo.do_block_smoothing = in.block_smoothing;
R_UNLESS(jpeg_start_decompress(&cinfo) == TRUE, capsrv::ResultAlbumInvalidFileData());
CAPSRV_ASSERT(cinfo.output_width == in.width);
CAPSRV_ASSERT(cinfo.output_height == in.height);
CAPSRV_ASSERT(cinfo.out_color_components == ColorComponents);
CAPSRV_ASSERT(cinfo.output_components == ColorComponents);
/* Pointer to output. */
RGBX *bmp = reinterpret_cast<RGBX *>(out.bmp);
/* Decode 4 lines at once. */
u8 *linebuffer[4] = {
work + 0 * linebuffer_size,
work + 1 * linebuffer_size,
work + 2 * linebuffer_size,
work + 3 * linebuffer_size,
};
/* While we still have scanlines, parse! */
while (cinfo.output_scanline < cinfo.output_height) {
/* Decode scanlines. */
int parsed = jpeg_read_scanlines(&cinfo, linebuffer, 4);
CAPSRV_ASSERT(parsed <= ImageSizeVerticalUnit);
/* Line by line */
for (int index = 0; index < parsed; index++) {
u8 *buffer = linebuffer[index];
const RGB* rgb = reinterpret_cast<RGB *>(buffer);
for (u32 i = 0; i < in.width; i++) {
/* Fill output. */
bmp->r = rgb->r;
bmp->g = rgb->g;
bmp->b = rgb->b;
bmp->x = 0xFF;
/* Traverse buffer. */
bmp++;
rgb++;
}
}
}
R_UNLESS(jpeg_finish_decompress(&cinfo) == TRUE, capsrv::ResultAlbumInvalidFileData());
*out.width = cinfo.output_width;
*out.height = cinfo.output_height;
return ResultSuccess();
}
}

43
stratosphere/jpegdec/source/impl/jpegdec_turbo.hpp Normal file
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@ -0,0 +1,43 @@
/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stratosphere.hpp>
namespace ams::jpegdec::impl {
struct DecodeInput {
const u8 *jpeg;
size_t jpeg_size;
u32 width;
u32 height;
bool fancy_upsampling;
bool block_smoothing;
};
struct DecodeOutput {
u32 *width;
u32 *height;
u8 *bmp;
size_t bmp_size;
};
struct Dimensions {
u32 width, height;
};
Result DecodeJpeg(DecodeOutput &out, const DecodeInput &in, u8 *work, size_t work_size);
}

79
stratosphere/jpegdec/source/jpegdec_decode_service.cpp Normal file
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@ -0,0 +1,79 @@
/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "jpegdec_decode_service.hpp"
#include "impl/jpegdec_turbo.hpp"
namespace ams::jpegdec {
namespace {
/* Enough for four linebuffers RGB. */
u8 g_workmem[0x3C00];
}
Result DecodeService::DecodeJpeg(const sf::OutNonSecureBuffer &out, const sf::InBuffer &in, u32 width, u32 height, const CapsScreenShotDecodeOption &opts) {
u8 *bmp = out.GetPointer();
size_t bmp_size = out.GetSize();
const u8 *jpeg = in.GetPointer();
size_t jpeg_size = in.GetSize();
/* Clear the work memory and out buffer. */
std::memset(g_workmem, 0, sizeof(g_workmem));
std::memset(bmp, 0, bmp_size);
/* Clear output memory on decode failure. */
auto clear_guard = SCOPE_GUARD { std::memset(bmp, 0, bmp_size); };
R_UNLESS(util::IsAligned(width, 0x10), capsrv::ResultAlbumOutOfRange());
R_UNLESS(util::IsAligned(height, 0x4), capsrv::ResultAlbumOutOfRange());
R_UNLESS(bmp != nullptr, capsrv::ResultAlbumReadBufferShortage());
R_UNLESS(bmp_size >= 4 * width * height, capsrv::ResultAlbumReadBufferShortage());
R_UNLESS(jpeg != nullptr, capsrv::ResultAlbumInvalidFileData());
R_UNLESS(jpeg_size != 0, capsrv::ResultAlbumInvalidFileData());
impl::DecodeInput decode_input = {
.jpeg = jpeg,
.jpeg_size = jpeg_size,
.width = width,
.height = height,
.fancy_upsampling = bool(opts.fancy_upsampling),
.block_smoothing = bool(opts.block_smoothing),
};
/* Official software ignores output written to this struct. */
impl::Dimensions dims = {};
impl::DecodeOutput decode_output = {
.width = &dims.width,
.height = &dims.height,
.bmp = bmp,
.bmp_size = bmp_size,
};
/* Decode the jpeg. */
R_TRY(impl::DecodeJpeg(decode_output, decode_input, g_workmem, sizeof(g_workmem)));
clear_guard.Cancel();
/* Clear the work memory. */
std::memset(g_workmem, 0, sizeof(g_workmem));
return ResultSuccess();
}
}

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stratosphere/jpegdec/source/jpegdec_decode_service.hpp Normal file
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/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stratosphere.hpp>
namespace ams::jpegdec {
class DecodeService final : public sf::IServiceObject {
protected:
enum class CommandId {
DecodeJpeg = 3001,
};
public:
/* Actual commands. */
virtual Result DecodeJpeg(const sf::OutNonSecureBuffer &out, const sf::InBuffer &in, u32 width, u32 height, const CapsScreenShotDecodeOption &opts);
public:
DEFINE_SERVICE_DISPATCH_TABLE {
MAKE_SERVICE_COMMAND_META(DecodeJpeg)
};
};
}

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/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "jpegdec_decode_service.hpp"
extern "C" {
extern u32 __start__;
u32 __nx_applet_type = AppletType_None;
#define INNER_HEAP_SIZE 0x18000
size_t nx_inner_heap_size = INNER_HEAP_SIZE;
char nx_inner_heap[INNER_HEAP_SIZE];
void __libnx_initheap(void);
void __appInit(void);
void __appExit(void);
/* Exception handling. */
alignas(16) u8 __nx_exception_stack[ams::os::MemoryPageSize];
u64 __nx_exception_stack_size = sizeof(__nx_exception_stack);
void __libnx_exception_handler(ThreadExceptionDump *ctx);
}
namespace ams {
ncm::ProgramId CurrentProgramId = ncm::SystemProgramId::JpegDec;
namespace result {
bool CallFatalOnResultAssertion = true;
}
}
using namespace ams;
void __libnx_exception_handler(ThreadExceptionDump *ctx) {
ams::CrashHandler(ctx);
}
void __libnx_initheap(void) {
void* addr = nx_inner_heap;
size_t size = nx_inner_heap_size;
/* Newlib */
extern char* fake_heap_start;
extern char* fake_heap_end;
fake_heap_start = (char*)addr;
fake_heap_end = (char*)addr + size;
}
void __appInit(void) {
hos::InitializeForStratosphere();
ams::CheckApiVersion();
}
void __appExit(void) {
/* ... */
}
namespace {
constexpr size_t NumServers = 1;
sf::hipc::ServerManager<NumServers> g_server_manager;
/* NOTE: Official code only allows for one session. */
constexpr sm::ServiceName DecodeServiceName = sm::ServiceName::Encode("caps:dc");
constexpr size_t DecodeMaxSessions = 2;
}
int main(int argc, char **argv)
{
/* Set thread name. */
os::SetThreadNamePointer(os::GetCurrentThread(), AMS_GET_SYSTEM_THREAD_NAME(jpegdec, Main));
/* Official jpegdec changes its thread priority to 21 in main. */
/* This is because older versions of the sysmodule had priority 20 in npdm. */
os::ChangeThreadPriority(os::GetCurrentThread(), AMS_GET_SYSTEM_THREAD_PRIORITY(jpegdec, Main));
AMS_ASSERT(os::GetThreadPriority(os::GetCurrentThread()) == AMS_GET_SYSTEM_THREAD_PRIORITY(jpegdec, Main));
/* Create service. */
R_ASSERT(g_server_manager.RegisterServer<jpegdec::DecodeService>(DecodeServiceName, DecodeMaxSessions));
/* Loop forever, servicing our services. */
g_server_manager.LoopProcess();
/* Cleanup */
return 0;
}