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/*
* Copyright © 2024 Matthew Wozniak <me@woz.blue>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef ENGINEAPI_H
#define ENGINEAPI_H
#define VENGINE_SERVER_INTERFACE_VERSION "VEngineServer021"
#define VENGINE_CLIENT_INTERFACE_VERSION "VEngineClient013"
#define VENGINE_LAUNCHER_INTERFACE_VERSION "VENGINE_LAUNCHER_API_VERSION004"
#define VENGINE_TOOL_INTERFACE_VERSION "VENGINETOOL003"
#define VENGINE_CVAR_INTERFACE_VERSION "VEngineCvar004"
#include "intdef.h"
#include "os.h"
typedef void * (*createinterface_func)(const char *name, int *ret);
struct engserver {
struct {
usize _pad[36];
void (*VIRTUAL server_command)(struct engserver *this, const char *str);
} *vt;
};
struct engclient {
struct {
usize _pad[75];
void (*VIRTUAL is_playing_demo)(struct engclient *this);
void (*VIRTUAL steampipe_is_playing_demo)(struct engclient *this);
} *vt;
};
struct engineapi {
struct {
usize _pad[7];
void *set_engine_window;
} *vt;
};
struct enginetools {
struct {
usize _pad[65];
void *start_movie_recording;
} *vt;
};
struct cvar {
struct {
usize _pad[10];
struct concommand * (*VIRTUAL find_command)(struct cvar *this, const char *name);
} *vt;
};
struct cmdbase {
void **vt;
struct cmdbase *next;
bool registered;
const char *name;
const char *helpstring;
int flags;
};
struct concommand {
struct cmdbase base;
void *callback;
};
struct audio_device {
struct {
usize _pad[22];
void *transfer_samples;
void *steampipe_transfer_samples;
} *vt;
};
struct movieinfo {
char name[256];
int curframe;
int type;
int jpeg_quality;
};
// Almost no chance I need all of these, but why not.
enum image_format {
IMAGE_FORMAT_UNKNOWN = -1,
IMAGE_FORMAT_RGBA8888 = 0,
IMAGE_FORMAT_ABGR8888,
IMAGE_FORMAT_RGB888,
IMAGE_FORMAT_BGR888,
IMAGE_FORMAT_RGB565,
IMAGE_FORMAT_I8,
IMAGE_FORMAT_IA88,
IMAGE_FORMAT_P8,
IMAGE_FORMAT_A8,
IMAGE_FORMAT_RGB888_BLUESCREEN,
IMAGE_FORMAT_BGR888_BLUESCREEN,
IMAGE_FORMAT_ARGB8888,
IMAGE_FORMAT_BGRA8888,
IMAGE_FORMAT_DXT1,
IMAGE_FORMAT_DXT3,
IMAGE_FORMAT_DXT5,
IMAGE_FORMAT_BGRX8888,
IMAGE_FORMAT_BGR565,
IMAGE_FORMAT_BGRX5551,
IMAGE_FORMAT_BGRA4444,
IMAGE_FORMAT_DXT1_ONEBITALPHA,
IMAGE_FORMAT_BGRA5551,
IMAGE_FORMAT_UV88,
IMAGE_FORMAT_UVWQ8888,
IMAGE_FORMAT_RGBA16161616F,
IMAGE_FORMAT_RGBA16161616,
IMAGE_FORMAT_UVLX8888,
IMAGE_FORMAT_R32F, // Single-channel 32-bit floating point
IMAGE_FORMAT_RGB323232F,
IMAGE_FORMAT_RGBA32323232F,
// vendor crap
IMAGE_FORMAT_NV_DST16,
IMAGE_FORMAT_NV_DST24,
IMAGE_FORMAT_NV_INTZ,
IMAGE_FORMAT_NV_RAWZ,
IMAGE_FORMAT_ATI_DST16,
IMAGE_FORMAT_ATI_DST24,
IMAGE_FORMAT_NV_NULL,
IMAGE_FORMAT_ATI2N,
IMAGE_FORMAT_ATI1N,
NUM_IMAGE_FORMATS
};
struct videomode {
struct {
usize _pad[22];
void (*VIRTUAL write_movie_frame)(struct videomode *this,
struct movieinfo *info);
usize _pad2[3];
void (*VIRTUAL steampipe_write_movie_frame)(struct videomode *this,
struct movieinfo *info);
void (*VIRTUAL read_screen_pixels)(struct videomode *this,
int x, int y, int w, int h, void *buf, enum image_format fmt);
usize _pad3;
void (*VIRTUAL steampipe_read_screen_pixels)(struct videomode *this,
int x, int y, int w, int h, void *buf, enum image_format fmt);
} *vt;
};
struct demoplayer {
struct {
usize _pad[5];
bool (*VIRTUAL start_playback)(struct demoplayer *this,
const char *filename, bool as_time_demo);
usize _pad2[11];
void (*VIRTUAL stop_playback)(struct demoplayer *this);
// TODO: Disable interp when in a portal bubble. This will be very
// difficult!
void (*VIRTUAL interpolate_viewpoint)(struct demoplayer *this);
} *vt;
};
/* EPIC HACK:
* Snd_WriteLinearBlastStereo16 is an inline asm function that starts with
*
* mov ebx, snd_p
* mov edi, snd_out
* mov ecx, snd_linear_count
* mov esi, snd_vol
*
* Luckily for us, these are all the things that we need!!!!
* So, we just use the instructions as a struct.
*/
struct soundstate {
u16 _mov_ebx;
int **snd_p;
u16 _mov_edi;
short **snd_out;
u16 _mov_ecx;
int *snd_linear_count;
u16 _mov_esi;
int *snd_vol;
} __attribute__((packed));
#ifndef NO_EXTERNS
extern struct engserver *engserver;
extern struct engclient *engclient;
extern struct engineapi *engineapi;
extern struct enginetools *enginetools;
extern struct demoplayer *demoplayer;
extern struct videomode **videomode;
extern struct movieinfo *movieinfo;
extern void (*cbuf_addtext)(char *);
extern void (*snd_recordbuffer)(void);
extern struct soundstate *snd;
extern bool steampipe;
#endif
// initializes required engine apis. returns false on error.
bool api_init(bool steampipe);
bool api_find_snd_recordbuffer(void);
#endif
// vi: sw=4 ts=4 noet tw=80 cc=80
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