rayjs/src/bgfx.cpp

100 lines
3.0 KiB
C++

#include <bgfx/c99/bgfx.h>
#include <SDL_syswm.h>
#include "common.h"
#include "logo.h"
static bgfx_platform_data_t get_platform_data(SDL_Window* win);
uint16_t uint16_max(uint16_t _a, uint16_t _b)
{
return _a < _b ? _b : _a;
}
int app_init_bgfx(){
bgfx_init_t init;
bgfx_init_ctor(&init);
init.platformData = get_platform_data(app_state.window);
init.resolution.width = app_config.width;
init.resolution.height = app_config.height;
init.resolution.reset = BGFX_RESET_VSYNC;
// calling render_frame on the same thread before init to force single-threaded mode
bgfx_render_frame(16);
bgfx_init(&init);
//bgfx_reset(WIDTH, HEIGHT, BGFX_RESET_VSYNC, init.resolution.format);
bgfx_set_debug(BGFX_DEBUG_TEXT);
bgfx_set_view_clear(0
, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
, 0x303030ff
, 1.0f
, 0
);
return 0;
}
int app_update_bgfx(){
// Set view 0 default viewport.
bgfx_set_view_rect(0, 0, 0, (uint16_t)app_config.width, (uint16_t)app_config.height);
// This dummy draw call is here to make sure that view 0 is cleared
// if no other draw calls are submitted to view 0.
bgfx_encoder_t* encoder = bgfx_encoder_begin(true);
bgfx_encoder_touch(encoder, 0);
bgfx_encoder_end(encoder);
// Use debug font to print information about this example.
bgfx_dbg_text_clear(0, false);
bgfx_dbg_text_image(
uint16_max( (uint16_t)app_config.width/2/8, 20)-20
, uint16_max( (uint16_t)app_config.height/2/16, 6)-6
, 40
, 12
, s_logo
, 160
);
bgfx_dbg_text_printf(0, 1, 0x0f, "Color can be changed with ANSI \x1b[9;me\x1b[10;ms\x1b[11;mc\x1b[12;ma\x1b[13;mp\x1b[14;me\x1b[0m code too.");
bgfx_dbg_text_printf(80, 1, 0x0f, "\x1b[;0m \x1b[;1m \x1b[; 2m \x1b[; 3m \x1b[; 4m \x1b[; 5m \x1b[; 6m \x1b[; 7m \x1b[0m");
bgfx_dbg_text_printf(80, 2, 0x0f, "\x1b[;8m \x1b[;9m \x1b[;10m \x1b[;11m \x1b[;12m \x1b[;13m \x1b[;14m \x1b[;15m \x1b[0m");
bgfx_dbg_text_printf(0, 3, 0x1f, "hello-bgfx");
bgfx_dbg_text_printf(0, 4, 0x3f, "Description: Initialization and debug text with C99 API.");
// Advance to next frame. Rendering thread will be kicked to
// process submitted rendering primitives.
bgfx_frame(false);
}
int app_dispose_bgfx(){
bgfx_shutdown();
}
static bgfx_platform_data_t get_platform_data(SDL_Window* win){
bgfx_platform_data_t pd = {0};
#if !BX_PLATFORM_EMSCRIPTEN
SDL_SysWMinfo wmi;
SDL_VERSION(&wmi.version);
if (!SDL_GetWindowWMInfo(win, &wmi)) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_SysWMinfo could not be retrieved: %s", SDL_GetError());
return pd;
}
#endif
#if BX_PLATFORM_WINDOWS
pd.nwh = wmi.info.win.window;
#elif BX_PLATFORM_OSX
pd.nwh = wmi.info.cocoa.window;
#elif BX_PLATFORM_LINUX
pd.ndt = wmi.info.x11.display;
pd.nwh = (void*)(uintptr_t)wmi.info.x11.window;
#elif BX_PLATFORM_EMSCRIPTEN
pd.nwh = (void*)"#canvas";
#endif
return pd;
}