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mintaro.h
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mintaro.h
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// Small retro game framework. Public domain. See "unlicense" statement at the end of this file.
// mintaro - v0.1 - 2016-10-27
//
// David Reid - [email protected]
// ABOUT
// =====
// Mintaro is a small framework for building simple, retro style games. It is not a full featured game
// engine so if that's what you're after you'll need to look elsewhere. The main intent for this library
// is to just make it fun to build simple games without having to worry about annoying things like
// complex build systems, long build times and complex APIs with steep learning curves.
//
//
//
// USAGE
// =====
// Mintaro is a single-file library. To use it, do something like the following in one .c file.
// #define MINTARO_IMPLEMENTATION
// #include "mintaro.h"
//
// You can then #include this file in other parts of the program as you would with any other header file.
//
// Mintaro has built-in support for TGA images and WAV audio, but can also make use of stb_image for
// additional image formats and stb_vorbis and dr_flac for Vorbis and FLAC audio respectively. To enable
// this, just #include them before the implementation of Mintaro:
//
// #include "stb_image.h"
// #include "stb_vorbis.c
// #include "dr_flac.h"
//
// ...
//
// #define MINTARO_IMPLEMENTATION
// #include "mintaro.h"
//
// You only need to #include these for the _implementation_ of Mintaro. You can find stb_image, stb_vorbis
// and dr_flac in the "extras" folder.
//
//
// Building (Windows)
// ------------------
// Linking (MSVC): Nothing
// Linking (GCC/Clang): -lgdi32
//
// You will need dsound.h in your include paths, but linking to dsound.lib is unnecessary.
//
//
// Building (Linux)
// ----------------
// The Linux build uses ALSA for it's backend so you will need to install the relevant ALSA development
// pacakges for your preferred distro. It also uses X11 and pthreads, both of which should be easy to
// set up.
//
// Linking: -lX11 -lXext -lasound -lpthread -lm
//
//
//
// NOTES
// =====
// - This embeds mini_al for audio. See https://github.com/dr-soft/mini_al for more information.
// - Mintaro is not thread-safe.
//
// Graphics
// --------
// - The number of colors in the palette is configurable at initialization time, but has a maximum of 256
// colors, with one color designated as transparency (there is only 1 level of transparency).
// - The color index to use for transparency is configurable in case you want to plug in an existing
// palette.
//
// Audio
// -----
// - Audio data is _always_ converted to 16-bit signed integer PCM, so consider using this for your audio
// assets. You will _not_ get quality improvements by using 24- or 32-bit formats, and you will _not_ be
// saving memory by using 8-bit formats.
// - The sample rate for audio can be set at initialization time, but all sounds must use that same sample
// rate. Mintaro does not currently do any sample rate conversion, though this is planned for the future.
#ifndef mintaro_h
#define mintaro_h
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _WIN32
#define MO_WIN32
#include <windows.h>
#else
#define MO_X11
#define MO_POSIX
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/XKBlib.h>
#include <X11/extensions/XShm.h>
#endif
// External library support.
#ifdef STBI_INCLUDE_STB_IMAGE_H
#define MO_HAS_STB_IMAGE
#endif
#ifdef STB_VORBIS_INCLUDE_STB_VORBIS_H
#define MO_HAS_STB_VORBIS
#endif
#ifdef dr_flac_h
#define MO_HAS_DR_FLAC
#endif
///////////////////////////////////////////////////////////////////////////////
//
// BEGIN MINI_AL HEADER SECTTION
//
///////////////////////////////////////////////////////////////////////////////
#if MO_USE_EXTERNAL_MINI_AL
#include "../mini_al/mini_al.h"
#else
#ifdef _WIN32
#define MAL_WIN32
#else
#define MAL_POSIX
#include <pthread.h> // Unfortunate #include, but needed for pthread_t, pthread_mutex_t and pthread_cond_t types.
#ifdef __linux__
#define MAL_LINUX
#endif
#ifdef __ANDROID__
#define MAL_ANDROID
#endif
#endif
#if !defined(MAL_NO_DSOUND) && defined(MAL_WIN32)
#define MAL_ENABLE_DSOUND
#endif
#if !defined(MAL_NO_ALSA) && defined(MAL_LINUX) && !defined(MAL_ANDROID)
#define MAL_ENABLE_ALSA
#endif
#if !defined(MAL_NO_OPENSLES) && defined(MAL_ANDROID)
#define MAL_ENABLE_OPENSLES
#endif
#if !defined(MAL_NO_NULL)
#define MAL_ENABLE_NULL
#endif
#if defined(_MSC_VER) && _MSC_VER < 1600
typedef signed char mal_int8;
typedef unsigned char mal_uint8;
typedef signed short mal_int16;
typedef unsigned short mal_uint16;
typedef signed int mal_int32;
typedef unsigned int mal_uint32;
typedef signed __int64 mal_int64;
typedef unsigned __int64 mal_uint64;
#else
#include <stdint.h>
typedef int8_t mal_int8;
typedef uint8_t mal_uint8;
typedef int16_t mal_int16;
typedef uint16_t mal_uint16;
typedef int32_t mal_int32;
typedef uint32_t mal_uint32;
typedef int64_t mal_int64;
typedef uint64_t mal_uint64;
#endif
typedef mal_int8 mal_bool8;
typedef mal_int32 mal_bool32;
#define MAL_TRUE 1
#define MAL_FALSE 0
typedef void* mal_handle;
typedef void* mal_ptr;
#ifdef MAL_WIN32
typedef mal_handle mal_thread;
typedef mal_handle mal_mutex;
typedef mal_handle mal_event;
#else
typedef pthread_t mal_thread;
typedef pthread_mutex_t mal_mutex;
typedef struct
{
pthread_mutex_t mutex;
pthread_cond_t condition;
mal_uint32 value;
} mal_event;
#endif
#ifdef MAL_ENABLE_DSOUND
#define MAL_MAX_PERIODS_DSOUND 4
#endif
typedef int mal_result;
#define MAL_SUCCESS 0
#define MAL_ERROR -1 // A generic error.
#define MAL_INVALID_ARGS -2
#define MAL_OUT_OF_MEMORY -3
#define MAL_FORMAT_NOT_SUPPORTED -4
#define MAL_NO_BACKEND -5
#define MAL_NO_DEVICE -6
#define MAL_API_NOT_FOUND -7
#define MAL_DEVICE_BUSY -8
#define MAL_DEVICE_NOT_INITIALIZED -9
#define MAL_DEVICE_ALREADY_STARTED -10
#define MAL_DEVICE_ALREADY_STARTING -11
#define MAL_DEVICE_ALREADY_STOPPED -12
#define MAL_DEVICE_ALREADY_STOPPING -13
#define MAL_FAILED_TO_MAP_DEVICE_BUFFER -14
#define MAL_FAILED_TO_INIT_BACKEND -15
#define MAL_FAILED_TO_READ_DATA_FROM_CLIENT -16
#define MAL_FAILED_TO_START_BACKEND_DEVICE -17
#define MAL_FAILED_TO_STOP_BACKEND_DEVICE -18
#define MAL_FAILED_TO_CREATE_MUTEX -19
#define MAL_FAILED_TO_CREATE_EVENT -20
#define MAL_FAILED_TO_CREATE_THREAD -21
#define MAL_DSOUND_FAILED_TO_CREATE_DEVICE -1024
#define MAL_DSOUND_FAILED_TO_SET_COOP_LEVEL -1025
#define MAL_DSOUND_FAILED_TO_CREATE_BUFFER -1026
#define MAL_DSOUND_FAILED_TO_QUERY_INTERFACE -1027
#define MAL_DSOUND_FAILED_TO_SET_NOTIFICATIONS -1028
#define MAL_ALSA_FAILED_TO_OPEN_DEVICE -2048
#define MAL_ALSA_FAILED_TO_SET_HW_PARAMS -2049
#define MAL_ALSA_FAILED_TO_SET_SW_PARAMS -2050
typedef struct mal_device mal_device;
typedef void (* mal_recv_proc)(mal_device* pDevice, mal_uint32 frameCount, const void* pSamples);
typedef mal_uint32 (* mal_send_proc)(mal_device* pDevice, mal_uint32 frameCount, void* pSamples);
typedef void (* mal_stop_proc)(mal_device* pDevice);
typedef void (* mal_log_proc) (mal_device* pDevice, const char* message);
typedef enum
{
mal_api_null,
mal_api_dsound,
mal_api_alsa,
mal_api_sles
} mal_api;
typedef enum
{
mal_device_type_playback,
mal_device_type_capture
} mal_device_type;
typedef enum
{
// I like to keep these explicitly defined because they're used as a key into a lookup table. When items are
// added to this, make sure there are no gaps and that they're added to the lookup table in mal_get_sample_size_in_bytes().
mal_format_u8 = 0,
mal_format_s16 = 1, // Seems to be the most widely supported format.
mal_format_s24 = 2, // Tightly packed. 3 bytes per sample.
mal_format_s32 = 3,
mal_format_f32 = 4,
} mal_format;
typedef union
{
mal_uint32 id32; // OpenSL|ES uses a 32-bit unsigned integer for identification.
char str[32]; // ALSA uses a name string for identification.
mal_uint8 guid[16]; // DirectSound uses a GUID for identification.
} mal_device_id;
typedef struct
{
mal_device_id id;
char name[256];
} mal_device_info;
typedef struct
{
int64_t counter;
} mal_timer;
typedef struct
{
mal_format format;
mal_uint32 channels;
mal_uint32 sampleRate;
mal_uint32 bufferSizeInFrames;
mal_uint32 periods;
mal_recv_proc onRecvCallback;
mal_send_proc onSendCallback;
mal_stop_proc onStopCallback;
mal_log_proc onLogCallback;
} mal_device_config;
struct mal_device
{
mal_api api; // DirectSound, ALSA, etc.
mal_device_type type;
mal_format format;
mal_uint32 channels;
mal_uint32 sampleRate;
mal_uint32 bufferSizeInFrames;
mal_uint32 periods;
mal_uint32 state;
mal_recv_proc onRecv;
mal_send_proc onSend;
mal_stop_proc onStop;
mal_log_proc onLog;
void* pUserData; // Application defined data.
mal_mutex lock;
mal_event wakeupEvent;
mal_event startEvent;
mal_event stopEvent;
mal_thread thread;
mal_result workResult; // This is set by the worker thread after it's finished doing a job.
mal_uint32 flags; // MAL_DEVICE_FLAG_*
union
{
#ifdef MAL_ENABLE_DSOUND
struct
{
/*HMODULE*/ mal_handle hDSoundDLL;
/*LPDIRECTSOUND8*/ mal_ptr pPlayback;
/*LPDIRECTSOUNDBUFFER*/ mal_ptr pPlaybackPrimaryBuffer;
/*LPDIRECTSOUNDBUFFER*/ mal_ptr pPlaybackBuffer;
/*LPDIRECTSOUNDCAPTURE8*/ mal_ptr pCapture;
/*LPDIRECTSOUNDCAPTUREBUFFER8*/ mal_ptr pCaptureBuffer;
/*LPDIRECTSOUNDNOTIFY*/ mal_ptr pNotify;
/*HANDLE*/ mal_handle pNotifyEvents[MAL_MAX_PERIODS_DSOUND]; // One event handle for each period.
/*HANDLE*/ mal_handle hStopEvent;
/*HANDLE*/ mal_handle hRewindEvent;
mal_uint32 lastProcessedFrame; // This is circular.
mal_uint32 rewindTarget; // Where we want to rewind to. Set to ~0UL when it is not being rewound.
mal_bool32 breakFromMainLoop;
} dsound;
#endif
#ifdef MAL_ENABLE_ALSA
struct
{
/*snd_pcm_t**/ mal_ptr pPCM;
mal_bool32 isUsingMMap;
mal_bool32 breakFromMainLoop;
void* pIntermediaryBuffer;
} alsa;
#endif
#ifdef MAL_ENABLE_OPENSLES
struct
{
/*SLObjectItf*/ mal_ptr pOutputMixObj;
/*SLOutputMixItf*/ mal_ptr pOutputMix;
/*SLObjectItf*/ mal_ptr pAudioPlayerObj;
/*SLPlayItf*/ mal_ptr pAudioPlayer;
/*SLObjectItf*/ mal_ptr pAudioRecorderObj;
/*SLRecordItf*/ mal_ptr pAudioRecorder;
/*SLAndroidSimpleBufferQueueItf*/ mal_ptr pBufferQueue;
mal_uint32 periodSizeInFrames;
mal_uint32 currentBufferIndex;
mal_uint8* pBuffer; // This is malloc()'d and is used for storing audio data. Typed as mal_uint8 for easy offsetting.
} sles;
#endif
#ifdef MAL_ENABLE_NULL
struct
{
mal_timer timer;
mal_uint32 lastProcessedFrame; // This is circular.
mal_bool32 breakFromMainLoop;
mal_uint8* pBuffer; // This is malloc()'d and is used as the destination for reading from the client. Typed as mal_uint8 for easy offsetting.
} null_device;
#endif
};
};
mal_result mal_enumerate_devices(mal_device_type type, mal_uint32* pCount, mal_device_info* pInfo);
mal_result mal_device_init(mal_device* pDevice, mal_device_type type, mal_device_id* pDeviceID, mal_device_config* pConfig, void* pUserData);
void mal_device_uninit(mal_device* pDevice);
void mal_device_set_recv_callback(mal_device* pDevice, mal_recv_proc proc);
void mal_device_set_send_callback(mal_device* pDevice, mal_send_proc proc);
void mal_device_set_stop_callback(mal_device* pDevice, mal_stop_proc proc);
mal_result mal_device_start(mal_device* pDevice);
mal_result mal_device_stop(mal_device* pDevice);
mal_bool32 mal_device_is_started(mal_device* pDevice);
mal_uint32 mal_device_get_available_rewind_amount(mal_device* pDevice);
mal_uint32 mal_device_rewind(mal_device* pDevice, mal_uint32 framesToRewind);
mal_uint32 mal_device_get_buffer_size_in_bytes(mal_device* pDevice);
mal_uint32 mal_get_sample_size_in_bytes(mal_format format);
#endif
///////////////////////////////////////////////////////////////////////////////
//
// END MINI_AL HEADER SECTTION
//
///////////////////////////////////////////////////////////////////////////////
#define MO_GLYPH_SIZE 9
typedef int mo_result;
#define MO_SUCCESS 0
#define MO_ERROR -1 // A generic error.
#define MO_INVALID_ARGS -2
#define MO_OUT_OF_MEMORY -3
#define MO_FAILED_TO_INIT_PLATFORM -4
#define MO_DOES_NOT_EXIST -5
#define MO_INVALID_RESOURCE -6
#define MO_UNSUPPORTED_IMAGE_FORMAT -7
#define MO_UNSUPPORTED_AUDIO_FORMAT -8
#define MO_FAILED_TO_INIT_AUDIO -9
#define MO_BAD_PROFILE -10
typedef unsigned int mo_event_type;
#define MO_EVENT_TYPE_KEY_DOWN 1
#define MO_EVENT_TYPE_KEY_UP 2
typedef unsigned int mo_button;
#define MO_BUTTON_LEFT (1 << 0)
#define MO_BUTTON_UP (1 << 1)
#define MO_BUTTON_RIGHT (1 << 2)
#define MO_BUTTON_DOWN (1 << 3)
#define MO_BUTTON_A (1 << 4)
#define MO_BUTTON_B (1 << 5)
#define MO_BUTTON_SELECT (1 << 6)
#define MO_BUTTON_START (1 << 7)
#define MO_BUTTON_COUNT 8
typedef unsigned int mo_key;
#define MO_KEY_BACKSPACE 0xff08
#define MO_KEY_ENTER 0xff0d
#define MO_KEY_SHIFT 0xff10
#define MO_KEY_ESCAPE 0xff1b
#define MO_KEY_SPACE 0xff20
#define MO_KEY_PAGE_UP 0xff55
#define MO_KEY_PAGE_DOWN 0xff56
#define MO_KEY_END 0xff57
#define MO_KEY_HOME 0xff50
#define MO_KEY_ARROW_LEFT 0x08fb
#define MO_KEY_ARROW_UP 0x08fc
#define MO_KEY_ARROW_RIGHT 0x08fd
#define MO_KEY_ARROW_DOWN 0x08fe
#define MO_KEY_DELETE 0xffff
#define MO_KEY_F1 0xffbe
#define MO_KEY_F2 0xffbf
#define MO_KEY_F3 0xffc0
#define MO_KEY_F4 0xffc1
#define MO_KEY_F5 0xffc2
#define MO_KEY_F6 0xffc3
#define MO_KEY_F7 0xffc4
#define MO_KEY_F8 0xffc5
#define MO_KEY_F9 0xffc6
#define MO_KEY_F10 0xffc7
#define MO_KEY_F11 0xffc8
#define MO_KEY_F12 0xffc9
#define MO_SOUND_GROUP_MASTER 0
#define MO_SOUND_GROUP_EFFECTS 1
#define MO_SOUND_GROUP_MUSIC 2
#define MO_SOUND_GROUP_VOICE 3
#define MO_SOUND_GROUP_COUNT 4
#if defined(_MSC_VER) && _MSC_VER < 1300
typedef signed char mo_int8;
typedef unsigned char mo_uint8;
typedef signed short mo_int16;
typedef unsigned short mo_uint16;
typedef signed int mo_int32;
typedef unsigned int mo_uint32;
typedef signed __int64 mo_int64;
typedef unsigned __int64 mo_uint64;
#else
#include <stdint.h>
typedef int8_t mo_int8;
typedef uint8_t mo_uint8;
typedef int16_t mo_int16;
typedef uint16_t mo_uint16;
typedef int32_t mo_int32;
typedef uint32_t mo_uint32;
typedef int64_t mo_int64;
typedef uint64_t mo_uint64;
#endif
typedef mo_int8 mo_bool8;
typedef mo_int32 mo_bool32;
typedef mo_uint8 mo_color_index;
#define MO_TRUE 1
#define MO_FALSE 0
typedef struct mo_context mo_context;
typedef struct mo_sound_source mo_sound_source;
typedef struct mo_sound_group mo_sound_group;
typedef struct mo_sound mo_sound;
typedef enum
{
mo_image_format_unknown = 0,
mo_image_format_native,
mo_image_format_rgba8
} mo_image_format;
typedef enum
{
mo_sound_source_type_raw,
mo_sound_source_type_vorbis,
mo_sound_source_type_flac
} mo_sound_source_type;
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4201)
#endif
typedef union
{
struct
{
mo_uint8 b;
mo_uint8 g;
mo_uint8 r;
mo_uint8 a;
};
mo_uint32 rgba;
} mo_color_rgba;
#ifdef _MSC_VER
#pragma warning(pop)
#endif
typedef struct
{
float y;
float u;
float v;
} mo_color_yuv;
typedef struct
{
mo_uint32 resolutionX; // The width of the virtual screen.
mo_uint32 resolutionY; // The height of the virtual screen.
mo_color_index transparentColorIndex; // The index of the color in the palette representing transparency.
mo_uint32 paletteSize; // The number of available colors. Maximum of 256.
mo_color_rgba palette[256]; // Palette colors.
mo_uint32 audioChannels; // The number of channels to use for audio. TODO: Implement me. Requires changes to mixing.
mo_uint32 audioSampleRate; // The sample rate to use for audio.
} mo_profile;
typedef struct
{
mo_uint32 width;
mo_uint32 height;
mo_image_format format;
mo_uint8 pData[1];
} mo_image;
struct mo_sound_source
{
mo_sound_source_type type;
union
{
struct
{
mo_uint32 channels;
mo_uint32 sampleRate;
mo_uint64 sampleCount;
mo_int16 pSampleData[1];
} raw;
struct
{
size_t dataSize;
mo_uint8 pData[1];
} vorbis;
struct
{
size_t dataSize;
mo_uint8 pData[1];
} flac;
};
};
struct mo_sound
{
mo_context* pContext;
mo_sound_source* pSource;
mo_uint32 group;
float linearVolume;
float pan;
mo_uint32 flags;
mo_bool32 isMarkedForDeletion;
// Streaming.
union
{
struct
{
mo_uint64 currentSample;
} raw;
struct
{
mo_uint64 currentSample;
/*stb_vorbis**/ void* pDecoder;
} vorbis;
struct
{
mo_uint64 currentSample;
/*drflac**/ void* pDecoder;
} flac;
};
};
struct mo_sound_group
{
float linearVolume;
mo_uint32 flags;
};
typedef struct
{
int64_t counter;
} mo_timer;
// Initializes a high-resolution timer.
void mo_timer_init(mo_timer* pTimer);
// Ticks the timer and returns the number of seconds since the previous tick.
//
// The maximum return value is about 140 years or so.
double mo_timer_tick(mo_timer* pTimer);
typedef void (* mo_on_step_proc)(mo_context* pContext, double dt);
typedef void (* mo_on_log_proc) (mo_context* pContext, const char* message);
struct mo_context
{
mo_on_step_proc onStep;
mo_on_log_proc onLog;
void* pUserData;
// The profile used to initialize the context. This defines things like the screen resolution
// and the palette.
mo_profile profile;
// The pixel data of the virtual screen. Each pixel is reprsented with a single byte which is
// an index into the palette.
mo_color_index* screen;
// Button state. A set bit means the key is down.
unsigned int buttonState;
unsigned int buttonPressState;
unsigned int buttonReleaseState;
// Key bindings.
mo_key keymap[MO_BUTTON_COUNT];
// Timer.
mo_timer timer;
// Boolean flags;
mo_uint32 flags;
// The platform-specific window.
#ifdef MO_WIN32
HWND hWnd;
HDC hDC;
int windowWidth;
int windowHeight;
HDC hDIBDC;
HBITMAP hDIBSection;
void* pScreenRGBA_DIB;
#endif
#ifdef MO_X11
Window windowX11;
GC gcX11;
XImage* pPresentBufferX11;
XShmSegmentInfo shmInfo; // Only used if MIT-SHM is supported.
#endif
// Audio
#ifdef MO_ENABLE_DSOUND
HMODULE hDSoundDLL;
LPDIRECTSOUND8 pDS;
LPDIRECTSOUNDBUFFER pDSPrimaryBuffer;
LPDIRECTSOUNDBUFFER pDSSecondaryBuffer;
#endif
#ifdef MO_ENABLE_ALSA
#endif
// The playback device for audio. This always uses the default device for now.
mal_device playbackDevice2;
// Sound groups. There's a fixed number of groups, and they are referenced with an index.
mo_sound_group soundGroups[MO_SOUND_GROUP_COUNT];
// TODO: Improve memory management for sounds.
//
// Sounds. This is just a basic realloc()'ed array of mo_sound* pointers.
mo_sound** ppSounds;
mo_uint32 soundCount;
mo_uint32 soundBufferSize;
// Keeps track of whether or not there is at least one sound needing to be deleted at the end
// of the next step. This is used for garbage collection of sounds.
mo_bool32 isSoundMarkedForDeletion;
// Dynamically sized data.
mo_uint8 pExtraData[1];
};
// Initializes a context. pProfile can be null, in which case it defaults to 160x144, with a 255 color general palette.
mo_result mo_init(mo_profile* pProfile, mo_uint32 windowSizeX, mo_uint32 windowSizeY, const char* title, mo_on_step_proc onStep, void* pUserData, mo_context** ppContext);
// Uninitializes a context.
void mo_uninit(mo_context* pContext);
// Runs the game. Call mo_close() to exit the main loop.
int mo_run(mo_context* pContext);
// Exits the game's main loop. This does not uninitialize the context.
void mo_close(mo_context* pContext);
// Posts a log message.
void mo_log(mo_context* pContext, const char* message);
void mo_logf(mo_context* pContext, const char* format, ...);
//// Resources ////
// Creates an image from raw image data.
mo_result mo_image_create(mo_context* pContext, unsigned int width, unsigned int height, mo_image_format format, const void* pData, mo_image** ppImage);
// Loads an image. The image can be unloaded with mo_delete_image().
mo_result mo_image_load(mo_context* pContext, const char* filePath, mo_image** ppImage);
// Deletes an image.
void mo_image_delete(mo_context* pContext, mo_image* pImage);
//// Drawing ////
// Finds the color index for the given RGBA color code.
mo_color_index mo_find_closest_color(mo_context* pContext, mo_color_rgba color);
// Clears the screen.
void mo_clear(mo_context* pContext, mo_color_index colorIndex);
// Draws a quad.
void mo_draw_quad(mo_context* pContext, int posX, int posY, int sizeX, int sizeY, mo_color_index colorIndex);
// Draws a string of text.
void mo_draw_text(mo_context* pContext, int posX, int posY, mo_color_index colorIndex, const char* text);
void mo_draw_textf(mo_context* pContext, int posX, int posY, mo_color_index colorIndex, const char* format, ...);
// Draws an image.
void mo_draw_image(mo_context* pContext, int dstX, int dstY, mo_image* pImage, int srcX, int srcY, int srcWidth, int srcHeight);
// Draws an image with scaling.
void mo_draw_image_scaled(mo_context* pContext, int dstX, int dstY, int dstWidth, int dstHeight, mo_image* pImage, int srcX, int srcY, int srcWidth, int srcHeight/*, float rotation*/);
//// Audio ////
// Creates a sound source. When a sound is played, you pass in a reference to this source.
mo_result mo_sound_source_create(mo_context* pContext, unsigned int channels, unsigned int sampleRate, mo_uint64 sampleCount, const mo_int16* pSampleData, mo_sound_source** ppSource);
mo_result mo_sound_source_create_vorbis(mo_context* pContext, size_t dataSize, const void* pData, mo_sound_source** ppSource);
mo_result mo_sound_source_create_flac(mo_context* pContext, size_t dataSize, const void* pData, mo_sound_source** ppSource);
// Loads a sound source from a file.
mo_result mo_sound_source_load(mo_context* pContext, const char* filePath, mo_sound_source** ppSource);
// Deletes a sound source.
void mo_sound_source_delete(mo_sound_source* pSource);
// Helper function for creating a sound tied to the given sound source, play it, and then delete it once it's
// finished playing. The sound does not loop.
mo_result mo_play_sound_source(mo_context* pContext, mo_sound_source* pSource, mo_uint32 group);
// Pauses playback of all sounds in the given sound group.
void mo_sound_group_pause(mo_context* pContext, mo_uint32 group);
// Resumes playback of all sounds in the given sound group.
void mo_sound_group_resume(mo_context* pContext, mo_uint32 group);
// Determines whether or not the given group is paused.
mo_bool32 mo_sound_group_is_paused(mo_context* pContext, mo_uint32 group);
// Sets the volume of the group. This is modulated with the volumes of each individual sound.
void mo_sound_group_set_volume(mo_context* pContext, mo_uint32, float linearVolume);
// Creates a sound. The sound group can be null in which case it'll be added to the global group.
//
// The <group> parameter should be one of the following:
// - 0 (same as MO_SOUND_GROUP_MASTER)
// - MO_SOUND_GROUP_MASTER
// - MO_SOUND_GROUP_EFFECTS
// - MO_SOUND_GROUP_MUSIC
// - MO_SOUND_GROUP_VOICE
mo_result mo_sound_create(mo_context* pContext, mo_sound_source* pSource, mo_uint32 group, mo_sound** ppSound);
// Deletes a sound.
void mo_sound_delete(mo_sound* pSound);
// Marks a sound for deletion. The sound will be deleted for real at the end of the next step.
void mo_sound_mark_for_deletion(mo_sound* pSound);
// Sets the volume of the given sound. The volume is linear.
void mo_sound_set_volume(mo_sound* pSound, float linearVolume);
// Plays the given sound.
void mo_sound_play(mo_sound* pSound, mo_bool32 loop);
// Stops playback of the given sound.
void mo_sound_stop(mo_sound* pSound);
// Determines whether or not the given sound is playing.
mo_bool32 mo_sound_is_playing(mo_sound* pSound);
// Determines whether or not the given sound is looping.
mo_bool32 mo_sound_is_looping(mo_sound* pSound);
//// Input ////
// Binds a key to a button.
void mo_bind_key_to_button(mo_context* pContext, mo_key key, mo_button button);
// Retrieves the button bound to the given key. Returns 0 if the key is not bound to any button.
mo_button mo_get_key_binding(mo_context* pContext, mo_key key);
// Determines if a button is currently down.
mo_bool32 mo_is_button_down(mo_context* pContext, unsigned int button);
// Determines if a button has just been pressed.
mo_bool32 mo_was_button_pressed(mo_context* pContext, unsigned int button);
// Determines if a button has just been released.
mo_bool32 mo_was_button_released(mo_context* pContext, unsigned int button);
//// Misc ////
#define mo_degrees(radians) ((radians) * 57.29577951308232087685f)
#define mo_radians(degrees) ((degrees) * 0.01745329251994329577f)
#ifdef __cplusplus
}
#endif
#endif //dr_gbe_h
///////////////////////////////////////////////////////////////////////////////
//
// IMPLEMENTATION
//
///////////////////////////////////////////////////////////////////////////////
#ifdef MINTARO_IMPLEMENTATION
#include <assert.h>
#include <stdio.h> // Required for printf() and family which is used in mo_logf().
#include <stdarg.h> // va_list, va_start, va_arg, va_end
// Standard library functions.
#ifndef mo_zero_memory
#ifdef _WIN32
#define mo_zero_memory(p, sz) ZeroMemory((p), (sz))
#else
#define mo_zero_memory(p, sz) memset((p), 0, (sz))
#endif
#endif
#ifndef mo_copy_memory
#ifdef _WIN32
#define mo_copy_memory(dst, src, sz) CopyMemory((dst), (src), (sz))
#else
#define mo_copy_memory(dst, src, sz) memcpy((dst), (src), (sz))
#endif
#endif
#ifndef mo_malloc
#ifdef _WIN32
#define mo_malloc(sz) HeapAlloc(GetProcessHeap(), 0, (sz))
#else
#define mo_malloc(sz) malloc((sz))
#endif
#endif
#ifndef mo_calloc
#ifdef _WIN32
#define mo_calloc(sz) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (sz))
#else
#define mo_calloc(sz) calloc(1, (sz))
#endif
#endif
#ifndef mo_realloc
#ifdef _WIN32
// HeapReAlloc() has slightly different behaviour to realloc().
#define mo_realloc(p, sz) (((sz) > 0) ? ((p) ? HeapReAlloc(GetProcessHeap(), 0, (p), (sz)) : HeapAlloc(GetProcessHeap(), 0, (sz))) : ((VOID*)(SIZE_T)(HeapFree(GetProcessHeap(), 0, (p)) & 0)))
#else
#define mo_realloc(p, sz) realloc((p), (sz))
#endif
#endif
#ifndef mo_free
#ifdef _WIN32
#define mo_free(p) HeapFree(GetProcessHeap(), 0, (p))
#else
#define mo_free(p) free((p))
#endif
#endif
#define mo_zero_object(p) mo_zero_memory((p), sizeof(*(p)))
#ifndef mo_assert
#ifdef _WIN32
#define mo_assert(condition) assert(condition)
#else
#define mo_assert(condition) assert(condition)
#endif
#endif
#ifdef MO_X11
#include <stdlib.h>
#include <string.h> // For memset()
#include <float.h> // <-- What's this one for?
#include <time.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#endif
// Atomics.
#if defined(_WIN32) && defined(_MSC_VER)
#define mo_atomic_increment(a) InterlockedIncrement((LONG*)a)
#define mo_atomic_decrement(a) InterlockedDecrement((LONG*)a)
#else
#define mo_atomic_increment(a) __sync_add_and_fetch(a, 1)
#define mo_atomic_decrement(a) __sync_sub_and_fetch(a, 1)
#endif
#define MO_FLAG_CLOSING (1 << 0)
#define MO_FLAG_X11_USING_SHM (1 << 1)
#define MO_SOUND_GROUP_FLAG_PAUSED (1 << 0)
#define MO_SOUND_FLAG_PLAYING (1 << 0)
#define MO_SOUND_FLAG_PAUSED (1 << 1)
#define MO_SOUND_FLAG_LOOPING (1 << 2)
#define MO_SOUND_FLAG_STREAMING (1 << 3)
#define MO_SOUND_FLAG_STOP_ON_NEXT_CHUNK (1 << 4)
#define MO_SOUND_FLAG_INLINED (1 << 5) // Set when the sound was created by mo_play_sound_source().
static mo_uint32 g_moDefaultPalette[256] = {
0xFF000000, 0xFF000033, 0xFF000066, 0xFF000099, 0xFF0000CC, 0xFF0000FF, 0xFF002B00, 0xFF002B33, 0xFF002B66, 0xFF002B99, 0xFF002BCC, 0xFF002BFF, 0xFF005500, 0xFF005533, 0xFF005566, 0xFF005599,
0xFF0055CC, 0xFF0055FF, 0xFF008000, 0xFF008033, 0xFF008066, 0xFF008099, 0xFF0080CC, 0xFF0080FF, 0xFF00AA00, 0xFF00AA33, 0xFF00AA66, 0xFF00AA99, 0xFF00AACC, 0xFF00AAFF, 0xFF00D500, 0xFF00D533,
0xFF00D566, 0xFF00D599, 0xFF00D5CC, 0xFF00D5FF, 0xFF00FF00, 0xFF00FF33, 0xFF00FF66, 0xFF00FF99, 0xFF00FFCC, 0xFF00FFFF, 0xFF330000, 0xFF330033, 0xFF330066, 0xFF330099, 0xFF3300CC, 0xFF3300FF,
0xFF332B00, 0xFF332B33, 0xFF332B66, 0xFF332B99, 0xFF332BCC, 0xFF332BFF, 0xFF335500, 0xFF335533, 0xFF335566, 0xFF335599, 0xFF3355CC, 0xFF3355FF, 0xFF338000, 0xFF338033, 0xFF338066, 0xFF338099,
0xFF3380CC, 0xFF3380FF, 0xFF33AA00, 0xFF33AA33, 0xFF33AA66, 0xFF33AA99, 0xFF33AACC, 0xFF33AAFF, 0xFF33D500, 0xFF33D533, 0xFF33D566, 0xFF33D599, 0xFF33D5CC, 0xFF33D5FF, 0xFF33FF00, 0xFF33FF33,
0xFF33FF66, 0xFF33FF99, 0xFF33FFCC, 0xFF33FFFF, 0xFF660000, 0xFF660033, 0xFF660066, 0xFF660099, 0xFF6600CC, 0xFF6600FF, 0xFF662B00, 0xFF662B33, 0xFF662B66, 0xFF662B99, 0xFF662BCC, 0xFF662BFF,
0xFF665500, 0xFF665533, 0xFF665566, 0xFF665599, 0xFF6655CC, 0xFF6655FF, 0xFF668000, 0xFF668033, 0xFF668066, 0xFF668099, 0xFF6680CC, 0xFF6680FF, 0xFF66AA00, 0xFF66AA33, 0xFF66AA66, 0xFF66AA99,
0xFF66AACC, 0xFF66AAFF, 0xFF66D500, 0xFF66D533, 0xFF66D566, 0xFF66D599, 0xFF66D5CC, 0xFF66D5FF, 0xFF66FF00, 0xFF66FF33, 0xFF66FF66, 0xFF66FF99, 0xFF66FFCC, 0xFF66FFFF, 0xFF990000, 0xFF990033,
0xFF990066, 0xFF990099, 0xFF9900CC, 0xFF9900FF, 0xFF992B00, 0xFF992B33, 0xFF992B66, 0xFF992B99, 0xFF992BCC, 0xFF992BFF, 0xFF995500, 0xFF995533, 0xFF995566, 0xFF995599, 0xFF9955CC, 0xFF9955FF,
0xFF998000, 0xFF998033, 0xFF998066, 0xFF998099, 0xFF9980CC, 0xFF9980FF, 0xFF99AA00, 0xFF99AA33, 0xFF99AA66, 0xFF99AA99, 0xFF99AACC, 0xFF99AAFF, 0xFF99D500, 0xFF99D533, 0xFF99D566, 0xFF99D599,
0xFF99D5CC, 0xFF99D5FF, 0xFF99FF00, 0xFF99FF33, 0xFF99FF66, 0xFF99FF99, 0xFF99FFCC, 0xFF99FFFF, 0xFFCC0000, 0xFFCC0033, 0xFFCC0066, 0xFFCC0099, 0xFFCC00CC, 0xFFCC00FF, 0xFFCC2B00, 0xFFCC2B33,
0xFFCC2B66, 0xFFCC2B99, 0xFFCC2BCC, 0xFFCC2BFF, 0xFFCC5500, 0xFFCC5533, 0xFFCC5566, 0xFFCC5599, 0xFFCC55CC, 0xFFCC55FF, 0xFFCC8000, 0xFFCC8033, 0xFFCC8066, 0xFFCC8099, 0xFFCC80CC, 0xFFCC80FF,
0xFFCCAA00, 0xFFCCAA33, 0xFFCCAA66, 0xFFCCAA99, 0xFFCCAACC, 0xFFCCAAFF, 0xFFCCD500, 0xFFCCD533, 0xFFCCD566, 0xFFCCD599, 0xFFCCD5CC, 0xFFCCD5FF, 0xFFCCFF00, 0xFFCCFF33, 0xFFCCFF66, 0xFFCCFF99,
0xFFCCFFCC, 0xFFCCFFFF, 0xFFFF0000, 0xFFFF0033, 0xFFFF0066, 0xFFFF0099, 0xFFFF00CC, 0xFFFF00FF, 0xFFFF2B00, 0xFFFF2B33, 0xFFFF2B66, 0xFFFF2B99, 0xFFFF2BCC, 0xFFFF2BFF, 0xFFFF5500, 0xFFFF5533,
0xFFFF5566, 0xFFFF5599, 0xFFFF55CC, 0xFFFF55FF, 0xFFFF8000, 0xFFFF8033, 0xFFFF8066, 0xFFFF8099, 0xFFFF80CC, 0xFFFF80FF, 0xFFFFAA00, 0xFFFFAA33, 0xFFFFAA66, 0xFFFFAA99, 0xFFFFAACC, 0xFFFFAAFF,
0xFFFFD500, 0xFFFFD533, 0xFFFFD566, 0xFFFFD599, 0xFFFFD5CC, 0xFFFFD5FF, 0xFFFFFF00, 0xFFFFFF33, 0xFFFFFF66, 0xFFFFFF99, 0xFFFFFFCC, 0xFFFFFFFF, 0xFF404040, 0xFF808080, 0xFFC0C0C0, 0x00000000
};
static inline float mo_clampf(float a, float lo, float hi)
{
return (a > hi) ? hi : ((a < lo) ? lo : a);
}
#ifdef MO_WIN32
static LARGE_INTEGER g_moTimerFrequency = {{0}};
void mo_timer_init(mo_timer* pTimer)
{
if (g_moTimerFrequency.QuadPart == 0) {
QueryPerformanceFrequency(&g_moTimerFrequency);
}
LARGE_INTEGER counter;
QueryPerformanceCounter(&counter);
pTimer->counter = (uint64_t)counter.QuadPart;
}
double mo_timer_tick(mo_timer* pTimer)
{
LARGE_INTEGER counter;
if (!QueryPerformanceCounter(&counter)) {
return 0;
}
long long newTimeCounter = counter.QuadPart;
long long oldTimeCounter = pTimer->counter;
pTimer->counter = newTimeCounter;