void st_point(int x, int y, int dx, int dy)
{
if (state && state->point)
{
if (hmd_stat())
state->point(state->gui_id, x * 2, y, dx, dy);
else
state->point(state->gui_id, x, y, dx, dy);
}
}
void video_show_cursor()
{
if (hmd_stat())
{
gui_set_cursor(1);
SDL_ShowCursor(SDL_DISABLE);
}
else
{
gui_set_cursor(0);
SDL_ShowCursor(SDL_ENABLE);
}
}
void video_clr_grab(void)
{
#ifdef NDEBUG
SDL_SetRelativeMouseMode(SDL_FALSE);
/* Never release the grab in HMD mode. */
if (!hmd_stat())
SDL_SetWindowGrab(window, SDL_FALSE);
video_show_cursor();
#endif
grabbed = 0;
}
void jump_draw(struct s_rend *rend, const GLfloat *p, GLfloat r, GLfloat h)
{
GLfloat height = (hmd_stat() ? 0.3f : 1.0f) * config_get_d(CONFIG_HEIGHT);
glPointSize(height / 12);
glPushMatrix();
{
glTranslatef(p[0], p[1], p[2]);
glScalef(r, h, r);
sol_draw(&jump.draw, rend, 1, 1);
}
glPopMatrix();
}
void video_swap(void)
{
int dt;
if (hmd_stat())
hmd_swap();
/* Take a screenshot of the complete back buffer and swap it. */
snapshot_take();
SDL_GL_SwapWindow(window);
/* Accumulate time passed and frames rendered. */
dt = (int) SDL_GetTicks() - last;
frames += 1;
ticks += dt;
last += dt;
/* Average over 250ms. */
if (ticks > 1000)
{
/* Round the frames-per-second value to the nearest integer. */
double k = 1000.0 * frames / ticks;
double f = floor(k);
double c = ceil (k);
/* Compute frame time and frames-per-second stats. */
fps = (int) ((c - k < k - f) ? c : f);
ms = (float) ticks / (float) frames;
/* Reset the counters for the next update. */
frames = 0;
ticks = 0;
/* Output statistics if configured. */
if (config_get_d(CONFIG_STATS))
fprintf(stdout, "%4d %8.4f\n", fps, (double) ms);
}
}
void video_push_persp(float fov, float n, float f)
{
if (hmd_stat())
hmd_persp(n, f);
else
{
GLfloat m[4][4];
GLfloat r = fov / 2 * V_PI / 180;
GLfloat s = fsinf(r);
GLfloat c = fcosf(r) / s;
GLfloat a = ((GLfloat) video.device_w /
(GLfloat) video.device_h);
glMatrixMode(GL_PROJECTION);
{
glLoadIdentity();
m[0][0] = c / a;
m[0][1] = 0.0f;
m[0][2] = 0.0f;
m[0][3] = 0.0f;
m[1][0] = 0.0f;
m[1][1] = c;
m[1][2] = 0.0f;
m[1][3] = 0.0f;
m[2][0] = 0.0f;
m[2][1] = 0.0f;
m[2][2] = -(f + n) / (f - n);
m[2][3] = -1.0f;
m[3][0] = 0.0f;
m[3][1] = 0.0f;
m[3][2] = -2.0f * n * f / (f - n);
m[3][3] = 0.0f;
glMultMatrixf(&m[0][0]);
}
glMatrixMode(GL_MODELVIEW);
{
glLoadIdentity();
}
}
}
void video_push_persp(float fov, float n, float f)
{
if (hmd_stat())
hmd_persp(n, f);
else
{
GLfloat m[4][4];
GLfloat r = fov / 2 * V_PI / 180;
GLfloat s = sin(r);
GLfloat c = cos(r) / s;
GLfloat a = ((GLfloat) config_get_d(CONFIG_WIDTH) /
(GLfloat) config_get_d(CONFIG_HEIGHT));
glMatrixMode(GL_PROJECTION);
{
glLoadIdentity();
m[0][0] = c / a;
m[0][1] = 0.0f;
m[0][2] = 0.0f;
m[0][3] = 0.0f;
m[1][0] = 0.0f;
m[1][1] = c;
m[1][2] = 0.0f;
m[1][3] = 0.0f;
m[2][0] = 0.0f;
m[2][1] = 0.0f;
m[2][2] = -(f + n) / (f - n);
m[2][3] = -1.0f;
m[3][0] = 0.0f;
m[3][1] = 0.0f;
m[3][2] = -2.0f * n * f / (f - n);
m[3][3] = 0.0f;
glMultMatrixf(&m[0][0]);
}
glMatrixMode(GL_MODELVIEW);
{
glLoadIdentity();
}
}
}
void video_push_ortho(void)
{
if (hmd_stat())
hmd_ortho();
else
{
GLfloat w = (GLfloat) video.device_w;
GLfloat h = (GLfloat) video.device_h;
glMatrixMode(GL_PROJECTION);
{
glLoadIdentity();
glOrtho_(0.0, w, 0.0, h, -1.0, +1.0);
}
glMatrixMode(GL_MODELVIEW);
{
glLoadIdentity();
}
}
}
void video_push_ortho(void)
{
if (hmd_stat())
hmd_ortho();
else
{
GLfloat w = (GLfloat) config_get_d(CONFIG_WIDTH);
GLfloat h = (GLfloat) config_get_d(CONFIG_HEIGHT);
glMatrixMode(GL_PROJECTION);
{
glLoadIdentity();
glOrtho_(0.0, w, 0.0, h, -1.0, +1.0);
}
glMatrixMode(GL_MODELVIEW);
{
glLoadIdentity();
}
}
}
void st_paint(float t)
{
state_drawn = 1;
if (state && state->paint)
{
video_clear();
if (hmd_stat())
{
hmd_prep_left();
video_clear();
state->paint(state->gui_id, t);
hmd_prep_right();
video_clear();
state->paint(state->gui_id, t);
}
else
state->paint(state->gui_id, t);
}
}
void game_draw(int pose, float t)
{
const float light_p[4] = { 8.f, 32.f, 8.f, 0.f };
struct s_draw *fp = &file.draw;
struct s_rend rend;
float fov = FOV;
if (!state)
return;
fp->shadow_ui = ball;
game_shadow_conf(1);
sol_draw_enable(&rend);
if (jump_b) fov *= 2.0f * fabsf(jump_dt - 0.5f);
video_push_persp(fov, 0.1f, FAR_DIST);
glPushMatrix();
{
float T[16], M[16], v[3], c[3];
/* In VR, move the view center up to keep the viewer level. */
v_cpy(c, view_c);
if (hmd_stat())
c[1] += view_dy;
video_calc_view(T, c, view_p, view_e[1]);
m_xps(M, T);
v_sub(v, c, view_p);
glTranslatef(0.f, 0.f, -v_len(v));
glMultMatrixf(M);
glTranslatef(-c[0], -c[1], -c[2]);
/* Center the skybox about the position of the camera. */
glPushMatrix();
{
glTranslatef(view_p[0], view_p[1], view_p[2]);
back_draw(&rend);
}
glPopMatrix();
glEnable(GL_LIGHT0);
glLightfv(GL_LIGHT0, GL_POSITION, light_p);
/* Draw the floor. */
sol_draw(fp, &rend, 0, 1);
/* Draw the game elements. */
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
if (pose == 0)
{
game_draw_balls(&rend, fp->vary, T, t);
game_draw_vect(&rend, fp->vary);
}
glDisable(GL_LIGHTING);
glDepthMask(GL_FALSE);
{
game_draw_flags(&rend, fp->base);
game_draw_beams(&rend, fp->base, fp->vary);
}
glDepthMask(GL_TRUE);
glEnable(GL_LIGHTING);
}
glPopMatrix();
video_pop_matrix();
sol_draw_disable(&rend);
game_shadow_conf(0);
}
int video_mode(int f, int w, int h)
{
//senquack
/* Enable standard application logging */
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
SDL_LogSetAllPriority(SDL_LOG_PRIORITY_VERBOSE);
int stereo = config_get_d(CONFIG_STEREO) ? 1 : 0;
int stencil = config_get_d(CONFIG_REFLECTION) ? 1 : 0;
int buffers = config_get_d(CONFIG_MULTISAMPLE) ? 1 : 0;
int samples = config_get_d(CONFIG_MULTISAMPLE);
int vsync = config_get_d(CONFIG_VSYNC) ? 1 : 0;
int hmd = config_get_d(CONFIG_HMD) ? 1 : 0;
int highdpi = config_get_d(CONFIG_HIGHDPI) ? 1 : 0;
int dpy = config_get_d(CONFIG_DISPLAY);
int X = SDL_WINDOWPOS_CENTERED_DISPLAY(dpy);
int Y = SDL_WINDOWPOS_CENTERED_DISPLAY(dpy);
hmd_free();
if (window)
{
SDL_GL_DeleteContext(context);
SDL_DestroyWindow(window);
}
//senquack
// SDL_GL_SetAttribute(SDL_GL_STEREO, stereo);
//senquack - disabled drawing shadows and reflections on GCW Zero, don't need a stencil buffer:
#ifdef GCWZERO
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 0);
#endif
//senquack - don't need or want these on GCW Zero:
#ifndef GCWZERO
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, buffers);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, samples);
#endif
/* Require 16-bit double buffer with 16-bit depth buffer. */
//senquack - GCW Zero port change
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, 32);
// SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
// SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 6);
// SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
// SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 0);
// SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, 16);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
//senquack
SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
/* Try to set the currently specified mode. */
log_printf("Creating a window (%dx%d, %s)\n",
w, h, (f ? "fullscreen" : "windowed"));
//senquack DEBUG - DO NOT RUN - loads GLES2.0 for some reason
// SDL_VideoInit(NULL);
window = SDL_CreateWindow("", X, Y, w, h,
SDL_WINDOW_OPENGL |
(highdpi ? SDL_WINDOW_ALLOW_HIGHDPI : 0) |
(f ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0));
if (window)
{
if ((context = SDL_GL_CreateContext(window)))
{
int buf, smp;
SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &buf);
SDL_GL_GetAttribute(SDL_GL_MULTISAMPLESAMPLES, &smp);
/*
* Work around SDL+WGL returning pixel formats below
* minimum specifications instead of failing, thus
* bypassing our fallback path. SDL tries to ensure that
* WGL plays by the rules, but forgets about extended
* context attributes such as multisample. See SDL
* Bugzilla #77.
*/
if (buf < buffers || smp < samples)
{
log_printf("GL context does not meet minimum specifications\n");
SDL_GL_DeleteContext(context);
context = NULL;
}
}
}
if (window && context)
{
set_window_title(TITLE);
set_window_icon(ICON);
/*
* SDL_GetWindowSize can be unreliable when going fullscreen
* on OSX (and possibly elsewhere). We should really be
* waiting for a resize / size change event, but for now we're
* doing this lazy thing instead.
*/
if (f)
{
SDL_DisplayMode dm;
if (SDL_GetDesktopDisplayMode(video_display(), &dm) == 0)
{
video.window_w = dm.w;
video.window_h = dm.h;
// //senquack
dm.format = SDL_PIXELFORMAT_RGBA8888;
// dm.format = SDL_PIXELFORMAT_RGB565;
dm.w = 320;
dm.h = 240;
dm.refresh_rate = 60;
dm.driverdata = 0;
SDL_SetWindowDisplayMode(window, &dm);
printf("setting new video dm..\n");
SDL_GetCurrentDisplayMode(0, &dm);
SDL_Log("Screen w: %d h: %d\n", dm.w, dm.h);
SDL_Log("Screen bpp: %d\n", SDL_BITSPERPIXEL(dm.format));
SDL_Log("Screen dm: ");
SDL_Log("\n\n");
SDL_Log("Vendor : %s\n", glGetString(GL_VENDOR));
SDL_Log("Renderer : %s\n", glGetString(GL_RENDERER));
SDL_Log("Version : %s\n", glGetString(GL_VERSION));
SDL_Log("Extensions : %s\n", glGetString(GL_EXTENSIONS));
SDL_Log("\n");
fflush(NULL);
}
}
else
{
SDL_GetWindowSize(window, &video.window_w, &video.window_h);
}
if (highdpi)
{
SDL_GL_GetDrawableSize(window, &video.device_w, &video.device_h);
}
else
{
video.device_w = video.window_w;
video.device_h = video.window_h;
}
video.device_scale = (float) video.device_h / (float) video.window_h;
log_printf("Created a window (%u, %dx%d, %s)\n",
SDL_GetWindowID(window),
video.window_w, video.window_h,
(f ? "fullscreen" : "windowed"));
config_set_d(CONFIG_DISPLAY, video_display());
config_set_d(CONFIG_FULLSCREEN, f);
config_set_d(CONFIG_WIDTH, video.window_w);
config_set_d(CONFIG_HEIGHT, video.window_h);
SDL_GL_SetSwapInterval(vsync);
if (!glext_init())
return 0;
glViewport(0, 0, video.device_w, video.device_h);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glEnable(GL_NORMALIZE);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glEnable(GL_TEXTURE_2D);
glEnable(GL_LIGHTING);
glEnable(GL_BLEND);
#if !ENABLE_OPENGLES
glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL,
GL_SEPARATE_SPECULAR_COLOR);
#endif
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDepthFunc(GL_LEQUAL);
/* If GL supports multisample, and SDL got a multisample buffer... */
if (glext_check("ARB_multisample"))
{
SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &buffers);
if (buffers) glEnable(GL_MULTISAMPLE);
}
/* Set up HMD display if requested. */
if (hmd)
hmd_init();
/* Initialize screen snapshotting. */
snapshot_init();
video_show_cursor();
/* Grab input immediately in HMD mode. */
if (hmd_stat())
SDL_SetWindowGrab(window, SDL_TRUE);
return 1;
}
/* If the mode failed, try it without stereo. */
else if (stereo)
{
config_set_d(CONFIG_STEREO, 0);
return video_mode(f, w, h);
}
/* If the mode failed, try decreasing the level of multisampling. */
else if (buffers)
{
config_set_d(CONFIG_MULTISAMPLE, samples / 2);
return video_mode(f, w, h);
}
/* If that mode failed, try it without reflections. */
else if (stencil)
{
config_set_d(CONFIG_REFLECTION, 0);
return video_mode(f, w, h);
}
/* If THAT mode failed, punt. */
return 0;
}
int video_mode(int f, int w, int h)
{
int stereo = config_get_d(CONFIG_STEREO) ? 1 : 0;
int stencil = config_get_d(CONFIG_REFLECTION) ? 1 : 0;
int buffers = config_get_d(CONFIG_MULTISAMPLE) ? 1 : 0;
int samples = config_get_d(CONFIG_MULTISAMPLE);
int vsync = config_get_d(CONFIG_VSYNC) ? 1 : 0;
int hmd = config_get_d(CONFIG_HMD) ? 1 : 0;
int highdpi = config_get_d(CONFIG_HIGHDPI) ? 1 : 0;
int dpy = config_get_d(CONFIG_DISPLAY);
int X = SDL_WINDOWPOS_CENTERED_DISPLAY(dpy);
int Y = SDL_WINDOWPOS_CENTERED_DISPLAY(dpy);
hmd_free();
if (window)
{
SDL_GL_DeleteContext(context);
SDL_DestroyWindow(window);
}
#if ENABLE_OPENGLES
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
#endif
SDL_GL_SetAttribute(SDL_GL_STEREO, stereo);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, stencil);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, buffers);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, samples);
/* Require 16-bit double buffer with 16-bit depth buffer. */
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
/* Try to set the currently specified mode. */
log_printf("Creating a window (%dx%d, %s)\n",
w, h, (f ? "fullscreen" : "windowed"));
window = SDL_CreateWindow("", X, Y, w, h,
SDL_WINDOW_OPENGL |
(highdpi ? SDL_WINDOW_ALLOW_HIGHDPI : 0) |
(f ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0));
if (window)
{
if ((context = SDL_GL_CreateContext(window)))
{
int buf, smp;
SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &buf);
SDL_GL_GetAttribute(SDL_GL_MULTISAMPLESAMPLES, &smp);
/*
* Work around SDL+WGL returning pixel formats below
* minimum specifications instead of failing, thus
* bypassing our fallback path. SDL tries to ensure that
* WGL plays by the rules, but forgets about extended
* context attributes such as multisample. See SDL
* Bugzilla #77.
*/
if (buf < buffers || smp < samples)
{
log_printf("GL context does not meet minimum specifications\n");
SDL_GL_DeleteContext(context);
context = NULL;
}
}
}
if (window && context)
{
set_window_title(TITLE);
set_window_icon(ICON);
/*
* SDL_GetWindowSize can be unreliable when going fullscreen
* on OSX (and possibly elsewhere). We should really be
* waiting for a resize / size change event, but for now we're
* doing this lazy thing instead.
*/
if (f)
{
SDL_DisplayMode dm;
if (SDL_GetDesktopDisplayMode(video_display(), &dm) == 0)
{
video.window_w = dm.w;
video.window_h = dm.h;
}
}
else
{
SDL_GetWindowSize(window, &video.window_w, &video.window_h);
}
if (highdpi)
{
SDL_GL_GetDrawableSize(window, &video.device_w, &video.device_h);
}
else
{
video.device_w = video.window_w;
video.device_h = video.window_h;
}
video.device_scale = (float) video.device_h / (float) video.window_h;
log_printf("Created a window (%u, %dx%d, %s)\n",
SDL_GetWindowID(window),
video.window_w, video.window_h,
(f ? "fullscreen" : "windowed"));
config_set_d(CONFIG_DISPLAY, video_display());
config_set_d(CONFIG_FULLSCREEN, f);
config_set_d(CONFIG_WIDTH, video.window_w);
config_set_d(CONFIG_HEIGHT, video.window_h);
SDL_GL_SetSwapInterval(vsync);
if (!glext_init())
return 0;
glViewport(0, 0, video.device_w, video.device_h);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glEnable(GL_NORMALIZE);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glEnable(GL_TEXTURE_2D);
glEnable(GL_LIGHTING);
glEnable(GL_BLEND);
#if !ENABLE_OPENGLES
glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL,
GL_SEPARATE_SPECULAR_COLOR);
#endif
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDepthFunc(GL_LEQUAL);
/* If GL supports multisample, and SDL got a multisample buffer... */
if (glext_check("ARB_multisample"))
{
SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &buffers);
if (buffers) glEnable(GL_MULTISAMPLE);
}
/* Set up HMD display if requested. */
if (hmd)
hmd_init();
/* Initialize screen snapshotting. */
snapshot_init();
video_show_cursor();
/* Grab input immediately in HMD mode. */
if (hmd_stat())
SDL_SetWindowGrab(window, SDL_TRUE);
return 1;
}
/* If the mode failed, try it without stereo. */
else if (stereo)
{
config_set_d(CONFIG_STEREO, 0);
return video_mode(f, w, h);
}
/* If the mode failed, try decreasing the level of multisampling. */
else if (buffers)
{
config_set_d(CONFIG_MULTISAMPLE, samples / 2);
return video_mode(f, w, h);
}
/* If that mode failed, try it without reflections. */
else if (stencil)
{
config_set_d(CONFIG_REFLECTION, 0);
return video_mode(f, w, h);
}
/* If THAT mode failed, punt. */
return 0;
}
int video_mode(int f, int w, int h)
{
int stereo = config_get_d(CONFIG_STEREO) ? 1 : 0;
int stencil = config_get_d(CONFIG_REFLECTION) ? 1 : 0;
int buffers = config_get_d(CONFIG_MULTISAMPLE) ? 1 : 0;
int samples = config_get_d(CONFIG_MULTISAMPLE);
int vsync = config_get_d(CONFIG_VSYNC) ? 1 : 0;
int hmd = config_get_d(CONFIG_HMD) ? 1 : 0;
int dpy = config_get_d(CONFIG_DISPLAY);
int X = SDL_WINDOWPOS_CENTERED_DISPLAY(dpy);
int Y = SDL_WINDOWPOS_CENTERED_DISPLAY(dpy);
hmd_free();
if (window)
{
SDL_GL_DeleteContext(context);
SDL_DestroyWindow(window);
}
SDL_GL_SetAttribute(SDL_GL_STEREO, stereo);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, stencil);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, buffers);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, samples);
/* Require 16-bit double buffer with 16-bit depth buffer. */
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
/* Try to set the currently specified mode. */
window = SDL_CreateWindow("", X, Y, w, h,
SDL_WINDOW_OPENGL |
(f ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0));
if (window)
{
set_window_title(TITLE);
set_window_icon(ICON);
SDL_GetWindowSize(window, &w, &h);
config_set_d(CONFIG_DISPLAY, video_display());
config_set_d(CONFIG_FULLSCREEN, f);
config_set_d(CONFIG_WIDTH, w);
config_set_d(CONFIG_HEIGHT, h);
context = SDL_GL_CreateContext(window);
SDL_GL_SetSwapInterval(vsync);
if (!glext_init())
return 0;
glViewport(0, 0, w, h);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glEnable(GL_NORMALIZE);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glEnable(GL_TEXTURE_2D);
glEnable(GL_LIGHTING);
glEnable(GL_BLEND);
#if !ENABLE_OPENGLES
glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL,
GL_SEPARATE_SPECULAR_COLOR);
#endif
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDepthFunc(GL_LEQUAL);
/* If GL supports multisample, and SDL got a multisample buffer... */
if (glext_check("ARB_multisample"))
{
SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &buffers);
if (buffers) glEnable(GL_MULTISAMPLE);
}
/* Set up HMD display if requested. */
if (hmd)
hmd_init();
/* Initialize screen snapshotting. */
snapshot_init();
video_show_cursor();
/* Grab input immediately in HMD mode. */
if (hmd_stat())
SDL_SetWindowGrab(window, SDL_TRUE);
return 1;
}
/* If the mode failed, try it without stereo. */
else if (stereo)
{
config_set_d(CONFIG_STEREO, 0);
return video_mode(f, w, h);
}
/* If the mode failed, try decreasing the level of multisampling. */
else if (buffers)
{
config_set_d(CONFIG_MULTISAMPLE, samples / 2);
return video_mode(f, w, h);
}
/* If that mode failed, try it without reflections. */
else if (stencil)
{
config_set_d(CONFIG_REFLECTION, 0);
return video_mode(f, w, h);
}
/* If THAT mode failed, punt. */
return 0;
}
