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Replace libsmacker with libsmackerdec

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staphen 2021-11-18 09:20:11 -05:00 • committed by Anders Jenbo
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[*]
indent_style = tab
end_of_line = lf
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true

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That's all there is to it!

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libsmacker
A C library for decoding .smk Smacker Video files
version 1.2.0
2021-06-02
(c) Greg Kennedy 2013-2021
http://libsmacker.sourceforge.net
----
---
Introduction
---
libsmacker is a cross-platform C library which can be used for decoding Smacker Video files produced by RAD Game Tools. Smacker Video was the king of video middleware in the 1990s, and its 256-color compressed video format was used in over 2600 software titles.
libsmacker implements the minimum feature set required from smackw32.dll to get an smk off a disk and the frames / audio into a buffer in the correct order.
---
License
---
libsmacker is released under the Lesser GNU Public License, v2.1. See the file COPYING for more information.
---
Usage
---
See the webpage for sample code and function documentation. The source package additionally includes a pair of driver programs:
* driver.c - dumps all frames of a file to a bmp/ subdirectory, and all audio as raw streams to out_*.raw files in CWD
* smk2avi.c - converts smk file(s) to AVI files - uncompressed 24-bit color and PCM audio stream.
Though the libraries are "bulletproofed" the sample apps are not: be cautious if you plan to implement in some critical environment.
---
Changelog
---
1.2.0
* Major refactor of data structures for performance
* Merge all files into a single unified .c source file
* Support audio-only .smk files
1.1.1
* Re-license under LGPL 2.1
1.1
* Switch to autotools-based build
* Incorporates patches from Dalerank Slim, Gennady Trafimenkov, and Bianca van Schaik
* Performance improvements and code cleanup / safety.
1.0
* Initial revision
---
Contact
---
Questions/comments:
* by email: kennedy.greg@gmail.com
* by website: http://libsmacker.sourceforge.net
Enjoy!

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/**
libsmacker - A C library for decoding .smk Smacker Video files
Copyright (C) 2012-2020 Greg Kennedy
libsmacker is a cross-platform C library which can be used for
decoding Smacker Video files produced by RAD Game Tools.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SMACKER_H
#define SMACKER_H
/* includes - needed for FILE* here */
#include <stdio.h>
/** forward-declaration for an struct */
typedef struct smk_t * smk;
/** a few defines as return codes from smk_next() */
#define SMK_DONE 0x00
#define SMK_MORE 0x01
#define SMK_LAST 0x02
#define SMK_ERROR -1
/** file-processing mode, pass to smk_open_file */
#define SMK_MODE_DISK 0x00
#define SMK_MODE_MEMORY 0x01
/** Y-scale meanings */
#define SMK_FLAG_Y_NONE 0x00
#define SMK_FLAG_Y_INTERLACE 0x01
#define SMK_FLAG_Y_DOUBLE 0x02
/** track mask and enable bits */
#define SMK_AUDIO_TRACK_0 0x01
#define SMK_AUDIO_TRACK_1 0x02
#define SMK_AUDIO_TRACK_2 0x04
#define SMK_AUDIO_TRACK_3 0x08
#define SMK_AUDIO_TRACK_4 0x10
#define SMK_AUDIO_TRACK_5 0x20
#define SMK_AUDIO_TRACK_6 0x40
#define SMK_VIDEO_TRACK 0x80
/* PUBLIC FUNCTIONS */
#ifdef __cplusplus
extern "C" {
#endif
/* OPEN OPERATIONS */
/** open an smk (from a file) */
smk smk_open_file(const char * filename, unsigned char mode);
/** open an smk (from a file pointer) */
smk smk_open_filepointer(FILE * file, unsigned char mode);
/** read an smk (from a memory buffer) */
smk smk_open_memory(const unsigned char * buffer, unsigned long size);
/* CLOSE OPERATIONS */
/** close out an smk file and clean up memory */
void smk_close(smk object);
/* GET FILE INFO OPERATIONS */
char smk_info_all(const smk object, unsigned long * frame, unsigned long * frame_count, double * usf);
char smk_info_video(const smk object, unsigned long * w, unsigned long * h, unsigned char * y_scale_mode);
char smk_info_audio(const smk object, unsigned char * track_mask, unsigned char channels[7], unsigned char bitdepth[7], unsigned long audio_rate[7]);
/* ENABLE/DISABLE Switches */
char smk_enable_all(smk object, unsigned char mask);
char smk_enable_video(smk object, unsigned char enable);
char smk_enable_audio(smk object, unsigned char track, unsigned char enable);
/** Retrieve palette */
const unsigned char * smk_get_palette(const smk object);
/** Retrieve video frame, as a buffer of size w*h */
const unsigned char * smk_get_video(const smk object);
/** Retrieve decoded audio chunk, track N */
const unsigned char * smk_get_audio(const smk object, unsigned char track);
/** Get size of currently pointed decoded audio chunk, track N */
unsigned long smk_get_audio_size(const smk object, unsigned char track);
/** rewind to first frame and unpack */
char smk_first(smk object);
/** advance to next frame and unpack */
char smk_next(smk object);
/** seek to first keyframe before/at N in an smk */
char smk_seek_keyframe(smk object, unsigned long frame);
/** was the pallet updated this frame */
unsigned char smk_palette_updated(smk s);
#ifdef __cplusplus
}
#endif
#endif

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3rdParty/libsmacker/smk_malloc.h vendored
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@ -1,56 +0,0 @@
/**
libsmacker - A C library for decoding .smk Smacker Video files
Copyright (C) 2012-2017 Greg Kennedy
See smacker.h for more information.
smk_malloc.h
"Safe" implementations of malloc and free.
Verbose implementation of assert.
*/
#ifndef SMK_MALLOC_H
#define SMK_MALLOC_H
/* assert */
#include <assert.h>
/* calloc */
#include <stdlib.h>
/* fprintf */
#include <stdio.h>
/* Error messages from calloc */
#include <errno.h>
#include <string.h>
/**
Safe free: attempts to prevent double-free by setting pointer to NULL.
Optionally warns on attempts to free a NULL pointer.
*/
#define smk_free(p) \
{ \
assert (p); \
free(p); \
p = NULL; \
}
/**
Safe malloc: exits if calloc() returns NULL.
Also initializes blocks to 0.
Optionally warns on attempts to malloc over an existing pointer.
Ideally, one should not exit() in a library. However, if you cannot
calloc(), you probably have bigger problems.
*/
#define smk_malloc(p, x) \
{ \
assert (p == NULL); \
p = calloc(1, x); \
if (!p) \
{ \
fprintf(stderr, "libsmacker::smk_malloc(" #p ", %lu) - ERROR: calloc() returned NULL (file: %s, line: %lu)\n\tReason: [%d] %s\n", \
(unsigned long) (x), __FILE__, (unsigned long)__LINE__, errno, strerror(errno)); \
exit(EXIT_FAILURE); \
} \
}
#endif

23
3rdParty/libsmackerdec/CMakeLists.txt vendored Normal file
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@ -0,0 +1,23 @@
include(FetchContent_MakeAvailableExcludeFromAll)
include(FetchContent)
FetchContent_Declare(libsmackerdec
URL https://github.com/diasurgical/libsmackerdec/archive/3489f67f00b8ef5ca3f357a60783f71f70dc7550.tar.gz
URL_HASH MD5=48fcf7221af1272082e9ad0ecf71877e
)
FetchContent_MakeAvailableExcludeFromAll(libsmackerdec)
add_library(libsmackerdec STATIC
${libsmackerdec_SOURCE_DIR}/src/BitReader.cpp
${libsmackerdec_SOURCE_DIR}/src/FileStream.cpp
${libsmackerdec_SOURCE_DIR}/src/HuffmanVLC.cpp
${libsmackerdec_SOURCE_DIR}/src/LogError.cpp
${libsmackerdec_SOURCE_DIR}/src/SmackerDecoder.cpp)
target_include_directories(libsmackerdec PUBLIC ${libsmackerdec_SOURCE_DIR}/include)
if(USE_SDL1)
target_link_libraries(libsmackerdec PUBLIC ${SDL_LIBRARY})
else()
target_link_libraries(libsmackerdec PUBLIC SDL2::SDL2)
endif()

7
CMakeLists.txt
View file

@ -360,9 +360,7 @@ if(NOT NOSOUND)
endif()
endif()
add_library(smacker STATIC
3rdParty/libsmacker/smacker.c)
target_include_directories(smacker PUBLIC 3rdParty/libsmacker)
add_subdirectory(3rdParty/libsmackerdec)
if(WIN32)
add_subdirectory(3rdParty/find_steam_game)
@ -484,7 +482,6 @@ set(libdevilutionx_SRCS
Source/utils/logged_fstream.cpp
Source/utils/paths.cpp
Source/utils/sdl_bilinear_scale.cpp
Source/utils/sdl_rwops_file_wrapper.cpp
Source/utils/sdl_thread.cpp
Source/utils/utf8.cpp
Source/DiabloUI/art.cpp
@ -880,7 +877,7 @@ endif()
target_link_libraries(libdevilutionx PUBLIC
PKWare
libmpq
smacker
libsmackerdec
simpleini
hoehrmann_utf8)

108
Source/storm/storm_svid.cpp
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@ -4,7 +4,7 @@
#include <cstdint>
#include <cstring>
#include <smacker.h>
#include <SmackerDecoder.h>
#ifndef NOSOUND
#include <Aulib/ResamplerSpeex.h>
@ -20,32 +20,32 @@
#include "utils/display.h"
#include "utils/log.hpp"
#include "utils/sdl_compat.h"
#include "utils/sdl_rwops_file_wrapper.hpp"
#include "utils/sdl_wrap.h"
#include "utils/stdcompat/optional.hpp"
namespace devilution {
namespace {
constexpr size_t SVidPaletteBufferSize = 768;
#ifndef NOSOUND
std::optional<Aulib::Stream> SVidAudioStream;
PushAulibDecoder *SVidAudioDecoder;
std::uint8_t SVidAudioDepth;
std::unique_ptr<int16_t[]> SVidAudioBuffer;
#endif
unsigned long SVidWidth, SVidHeight;
uint32_t SVidWidth, SVidHeight;
double SVidFrameEnd;
double SVidFrameLength;
bool SVidLoop;
smk SVidSMK;
SmackerHandle SVidHandle;
std::unique_ptr<uint8_t[]> SVidPaletteBuffer;
std::unique_ptr<uint8_t[]> SVidFrameBuffer;
SDL_Color SVidPreviousPalette[256];
SDLPaletteUniquePtr SVidPalette;
SDLSurfaceUniquePtr SVidSurface;
#ifndef DEVILUTIONX_SDL_RWOPS_FILE_WRAPPER_AVAILABLE
std::unique_ptr<uint8_t[]> SVidBuffer;
#endif
bool IsLandscapeFit(unsigned long srcW, unsigned long srcH, unsigned long dstW, unsigned long dstH)
{
return srcW * dstH > dstW * srcH;
@ -119,16 +119,19 @@ bool HasAudio()
bool SVidLoadNextFrame()
{
SVidFrameEnd += SVidFrameLength;
if (smk_next(SVidSMK) == SMK_DONE) {
if (Smacker_GetCurrentFrameNum(SVidHandle) >= Smacker_GetNumFrames(SVidHandle)) {
if (!SVidLoop) {
return false;
}
smk_first(SVidSMK);
Smacker_Rewind(SVidHandle);
}
SVidFrameEnd += SVidFrameLength;
Smacker_GetNextFrame(SVidHandle);
Smacker_GetFrame(SVidHandle, SVidFrameBuffer.get());
return true;
}
@ -143,44 +146,31 @@ bool SVidPlayBegin(const char *filename, int flags)
SVidLoop = false;
if ((flags & 0x40000) != 0)
SVidLoop = true;
bool enableVideo = (flags & 0x100000) == 0;
//0x8 // Non-interlaced
//0x200, 0x800 // Upscale video
//0x80000 // Center horizontally
//0x100000 // Disable video
//0x800000 // Edge detection
//0x200800 // Clear FB
SDL_RWops *videoStream = OpenAsset(filename);
#ifdef DEVILUTIONX_SDL_RWOPS_FILE_WRAPPER_AVAILABLE
FILE *file = FILE_FromSDL_RWops(videoStream);
SVidSMK = smk_open_filepointer(file, SMK_MODE_DISK);
#else
size_t bytestoread = SDL_RWsize(videoStream);
SVidBuffer = std::unique_ptr<uint8_t[]> { new uint8_t[bytestoread] };
SDL_RWread(videoStream, SVidBuffer.get(), bytestoread, 1);
SDL_RWclose(videoStream);
SVidSMK = smk_open_memory(SVidBuffer.get(), bytestoread);
#endif
if (SVidSMK == nullptr) {
SVidHandle = Smacker_Open(videoStream);
if (!SVidHandle.isValid) {
return false;
}
#ifndef NOSOUND
const bool enableAudio = (flags & 0x1000000) == 0;
constexpr std::size_t MaxSmkChannels = 7;
unsigned char channels[MaxSmkChannels];
unsigned char depth[MaxSmkChannels];
unsigned long rate[MaxSmkChannels]; // NOLINT(google-runtime-int): Match `smk_info_audio` signature.
smk_info_audio(SVidSMK, nullptr, channels, depth, rate);
LogVerbose(LogCategory::Audio, "SVid audio depth={} channels={} rate={}", depth[0], channels[0], rate[0]);
auto audioInfo = Smacker_GetAudioTrackDetails(SVidHandle, 0);
LogVerbose(LogCategory::Audio, "SVid audio depth={} channels={} rate={}", audioInfo.bitsPerSample, audioInfo.nChannels, audioInfo.sampleRate);
if (enableAudio && depth[0] != 0) {
if (enableAudio && audioInfo.bitsPerSample != 0) {
sound_stop(); // Stop in-progress music and sound effects
smk_enable_audio(SVidSMK, 0, 1);
SVidAudioDepth = depth[0];
auto decoder = std::make_unique<PushAulibDecoder>(channels[0], rate[0]);
SVidAudioDepth = audioInfo.bitsPerSample;
SVidAudioBuffer = std::unique_ptr<int16_t[]> { new int16_t[audioInfo.idealBufferSize] };
auto decoder = std::make_unique<PushAulibDecoder>(audioInfo.nChannels, audioInfo.sampleRate);
SVidAudioDecoder = decoder.get();
SVidAudioStream.emplace(/*rwops=*/nullptr, std::move(decoder),
std::make_unique<Aulib::ResamplerSpeex>(sgOptions.Audio.nResamplingQuality), /*closeRw=*/false);
@ -199,18 +189,21 @@ bool SVidPlayBegin(const char *filename, int flags)
}
#endif
unsigned long nFrames;
smk_info_all(SVidSMK, nullptr, &nFrames, &SVidFrameLength);
smk_info_video(SVidSMK, &SVidWidth, &SVidHeight, nullptr);
SVidFrameLength = 1000000.0 / Smacker_GetFrameRate(SVidHandle);
Smacker_GetFrameSize(SVidHandle, SVidWidth, SVidHeight);
smk_enable_video(SVidSMK, enableVideo ? 1 : 0);
smk_first(SVidSMK); // Decode first frame
SVidFrameBuffer = std::unique_ptr<uint8_t[]> { new uint8_t[SVidWidth * SVidHeight] };
// Decode first frame
Smacker_GetNextFrame(SVidHandle);
Smacker_GetFrame(SVidHandle, SVidFrameBuffer.get());
smk_info_video(SVidSMK, &SVidWidth, &SVidHeight, nullptr);
#ifndef USE_SDL1
if (renderer != nullptr) {
texture = SDLWrap::CreateTexture(renderer, SDL_PIXELFORMAT_RGB888, SDL_TEXTUREACCESS_STREAMING, SVidWidth, SVidHeight);
if (SDL_RenderSetLogicalSize(renderer, SVidWidth, SVidHeight) <= -1) {
int renderWidth = static_cast<int>(SVidWidth);
int renderHeight = static_cast<int>(SVidHeight);
texture = SDLWrap::CreateTexture(renderer, SDL_PIXELFORMAT_RGB888, SDL_TEXTUREACCESS_STREAMING, renderWidth, renderHeight);
if (SDL_RenderSetLogicalSize(renderer, renderWidth, renderHeight) <= -1) {
ErrSdl();
}
}
@ -221,13 +214,14 @@ bool SVidPlayBegin(const char *filename, int flags)
// Copy frame to buffer
SVidSurface = SDLWrap::CreateRGBSurfaceWithFormatFrom(
(unsigned char *)smk_get_video(SVidSMK),
SVidWidth,
SVidHeight,
reinterpret_cast<void *>(SVidFrameBuffer.get()),
static_cast<int>(SVidWidth),
static_cast<int>(SVidHeight),
8,
SVidWidth,
static_cast<int>(SVidWidth),
SDL_PIXELFORMAT_INDEX8);
SVidPaletteBuffer = std::unique_ptr<uint8_t[]> { new uint8_t[SVidPaletteBufferSize] };
SVidPalette = SDLWrap::AllocPalette();
if (SDLC_SetSurfaceColors(SVidSurface.get(), SVidPalette.get()) <= -1) {
ErrSdl();
@ -240,9 +234,10 @@ bool SVidPlayBegin(const char *filename, int flags)
bool SVidPlayContinue()
{
if (smk_palette_updated(SVidSMK) != 0) {
if (Smacker_DidPaletteChange(SVidHandle)) {
SDL_Color colors[256];
const unsigned char *paletteData = smk_get_palette(SVidSMK);
uint8_t *paletteData = SVidPaletteBuffer.get();
Smacker_GetPalette(SVidHandle, paletteData);
for (int i = 0; i < 256; i++) {
colors[i].r = paletteData[i * 3 + 0];
@ -270,10 +265,10 @@ bool SVidPlayContinue()
#ifndef NOSOUND
if (HasAudio()) {
const auto len = smk_get_audio_size(SVidSMK, 0);
const unsigned char *buf = smk_get_audio(SVidSMK, 0);
std::int16_t *buf = SVidAudioBuffer.get();
const auto len = Smacker_GetAudioData(SVidHandle, 0, buf);
if (SVidAudioDepth == 16) {
SVidAudioDecoder->PushSamples(reinterpret_cast<const std::int16_t *>(buf), len / 2);
SVidAudioDecoder->PushSamples(buf, len / 2);
} else {
SVidAudioDecoder->PushSamples(reinterpret_cast<const std::uint8_t *>(buf), len);
}
@ -352,18 +347,17 @@ void SVidPlayEnd()
if (HasAudio()) {
SVidAudioStream = std::nullopt;
SVidAudioDecoder = nullptr;
SVidAudioBuffer = nullptr;
}
#endif
if (SVidSMK != nullptr)
smk_close(SVidSMK);
#ifndef DEVILUTIONX_SDL_RWOPS_FILE_WRAPPER_AVAILABLE
SVidBuffer = nullptr;
#endif
if (SVidHandle.isValid)
Smacker_Close(SVidHandle);
SVidPalette = nullptr;
SVidSurface = nullptr;
SVidPaletteBuffer = nullptr;
SVidFrameBuffer = nullptr;
memcpy(orig_palette, SVidPreviousPalette, sizeof(orig_palette));
#ifndef USE_SDL1

70
Source/utils/sdl_rwops_file_wrapper.cpp
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@ -1,70 +0,0 @@
#include "utils/sdl_rwops_file_wrapper.hpp"
#ifdef DEVILUTIONX_SDL_RWOPS_FILE_WRAPPER_AVAILABLE
#include "utils/log.hpp"
namespace devilution {
extern "C" {
#ifdef DEVILUTIONX_SDL_RWOPS_FILE_WRAPPER_IMPL_FOPENCOOKIE
ssize_t SDL_RWops_CookieRead(void *cookie, char *buf, size_t nbytes)
{
size_t numRead = SDL_RWread(static_cast<SDL_RWops *>(cookie), buf, nbytes, 1);
if (numRead == 0) {
Log("SDL_RWread error: {} ERROR CODE {}", SDL_GetError(), numRead);
}
return numRead * nbytes;
}
int SDL_RWops_CookieSeek(void *cookie, off64_t *pos, int whence)
{
int swhence;
switch (whence) {
case SEEK_SET:
swhence = RW_SEEK_SET;
break;
case SEEK_CUR:
swhence = RW_SEEK_CUR;
break;
case SEEK_END:
swhence = RW_SEEK_END;
break;
default:
return -1;
}
const Sint64 spos = SDL_RWseek(static_cast<SDL_RWops *>(cookie), *pos, swhence);
if (spos < 0) {
Log("SDL_RWops_RwSeek error: {}", SDL_GetError());
return -1;
}
*pos = static_cast<off64_t>(spos);
return 0;
}
int SDL_RWops_CookieClose(void *cookie)
{
return SDL_RWclose(static_cast<SDL_RWops *>(cookie));
}
} // extern "C"
#endif
FILE *FILE_FromSDL_RWops(SDL_RWops *handle)
{
#ifdef DEVILUTIONX_SDL_RWOPS_FILE_WRAPPER_IMPL_FOPENCOOKIE
cookie_io_functions_t ioFns;
std::memset(&ioFns, 0, sizeof(ioFns));
ioFns.read = &SDL_RWops_CookieRead;
ioFns.seek = &SDL_RWops_CookieSeek;
ioFns.close = &SDL_RWops_CookieClose;
return fopencookie(handle, "rb", ioFns);
#else
#error "unimplemented"
#endif
}
} // namespace devilution
#endif

17
Source/utils/sdl_rwops_file_wrapper.hpp
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@ -1,17 +0,0 @@
/** A pointer to a Storm file as a `FILE *`. Only available on some platforms. */
#pragma once
#if (defined(__linux__) && !defined(__ANDROID__)) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(__HAIKU__)
#include <cstdio>
#include <SDL.h>
#define DEVILUTIONX_SDL_RWOPS_FILE_WRAPPER_AVAILABLE
#define DEVILUTIONX_SDL_RWOPS_FILE_WRAPPER_IMPL_FOPENCOOKIE
namespace devilution {
FILE *FILE_FromSDL_RWops(SDL_RWops *handle);
} // namespace devilution
#endif