static bool
make_egl_current_and_test(EGLDisplay *dpy, EGLContext ctx)
{
const char *string;
GLuint shader;
bool pass = true;
eglMakeCurrent(dpy, NULL, NULL, ctx);
if (!epoxy_is_desktop_gl()) {
fputs("Claimed to be desktop\n", stderr);
pass = false;
}
if (epoxy_gl_version() < 20) {
fprintf(stderr, "Claimed to be GL version %d\n",
epoxy_gl_version());
pass = false;
}
string = (const char *)glGetString(GL_VERSION);
printf("GL version: %s\n", string);
shader = glCreateShader(GL_FRAGMENT_SHADER);
pass = glIsShader(shader);
return pass;
}
void initialize() {
if(!isEnabled()) {
return;
}
bool have_debug = ARX_HAVE_GL_VER(4, 3) || ARX_HAVE_GL_EXT(KHR_debug);
#if ARX_HAVE_EPOXY
have_debug = have_debug || (epoxy_is_desktop_gl() && ARX_HAVE_GL_EXT(ARB_debug_output));
#endif
if(!have_debug) {
LogWarning << "OpenGL debug output not available";
return;
}
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
// GLEW versions before 1.11.0 define GLDEBUGPROC with a non-const user pointer
#if !ARX_HAVE_GLEW || defined(GLEW_VERSION_4_5)
glDebugMessageCallback(gldebug::callback, NULL);
#else
glDebugMessageCallback((GLDEBUGPROC)gldebug::callback, NULL);
#endif
// Forward messages with high severity level
glDebugMessageControl(GL_DONT_CARE,
GL_DONT_CARE,
GL_DEBUG_SEVERITY_HIGH,
0,
NULL,
GL_TRUE);
// Forward messages with medium severity level
glDebugMessageControl(GL_DONT_CARE,
GL_DONT_CARE,
GL_DEBUG_SEVERITY_MEDIUM,
0,
NULL,
GL_TRUE);
// Forward messages from the application
glDebugMessageControl(GL_DEBUG_SOURCE_APPLICATION,
GL_DONT_CARE,
GL_DONT_CARE,
0,
NULL,
GL_TRUE);
std::string strInitialized("OpenGL debug output enabled");
glDebugMessageInsert(GL_DEBUG_SOURCE_APPLICATION,
GL_DEBUG_TYPE_OTHER,
1,
GL_DEBUG_SEVERITY_LOW,
GLsizei(strInitialized.size()), strInitialized.c_str());
}
int
main (void)
{
CGLPixelFormatAttribute attribs[] = {0};
CGLPixelFormatObj pix;
CGLContextObj ctx;
const char *string;
bool pass = true;
int npix;
GLint shader;
CGLChoosePixelFormat(attribs, &pix, &npix);
CGLCreateContext(pix, (void *) 0, &ctx);
CGLSetCurrentContext(ctx);
if (!epoxy_is_desktop_gl()) {
fputs("Claimed not to be desktop\n", stderr);
pass = false;
}
if (epoxy_gl_version() < 20) {
fprintf(stderr, "Claimed to be GL version %d\n",
epoxy_gl_version());
pass = false;
}
if (epoxy_glsl_version() < 100) {
fprintf(stderr, "Claimed to have GLSL version %d\n",
epoxy_glsl_version());
pass = false;
}
string = (const char *)glGetString(GL_VERSION);
printf("GL version: %s - Epoxy: %d\n", string, epoxy_gl_version());
string = (const char *)glGetString(GL_SHADING_LANGUAGE_VERSION);
printf("GLSL version: %s - Epoxy: %d\n", string, epoxy_glsl_version());
shader = glCreateShader(GL_FRAGMENT_SHADER);
pass = glIsShader(shader);
CGLSetCurrentContext(NULL);
CGLReleaseContext(ctx);
CGLReleasePixelFormat(pix);
return pass != true;
}
GlContext::GlContext(SDL_Window *window) {
this->capabilities = find_capabilities();
auto const &capabilities = this->capabilities;
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, capabilities.major_version);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, capabilities.minor_version);
this->gl_context = SDL_GL_CreateContext(window);
if (this->gl_context == nullptr) {
throw Error(MSG(err) << "OpenGL context creation failed. SDL error: " << SDL_GetError());
}
// We still have to verify that our version of libepoxy supports this version of OpenGL.
int epoxy_glv = capabilities.major_version * 10 + capabilities.minor_version;
if (!epoxy_is_desktop_gl() || epoxy_gl_version() < epoxy_glv) {
throw Error(MSG(err) << "The used version of libepoxy does not support OpenGL version "
<< capabilities.major_version << "." << capabilities.minor_version);
}
log::log(MSG(info) << "Created OpenGL context version " << capabilities.major_version << "." << capabilities.minor_version);
// To quote the standard doc: 'The value gives a rough estimate of the
// largest texture that the GL can handle'
// -> wat? anyways, we need at least 1024x1024.
log::log(MSG(dbg) << "Maximum supported texture size: "
<< capabilities.max_texture_size);
if (capabilities.max_texture_size < 1024) {
throw Error(MSG(err) << "Maximum supported texture size is too small: "
<< capabilities.max_texture_size);
}
log::log(MSG(dbg) << "Maximum supported texture units: "
<< capabilities.max_texture_slots);
if (capabilities.max_texture_slots < 2) {
throw Error(MSG(err) << "Your GPU doesn't have enough texture units: "
<< capabilities.max_texture_slots);
}
}
/** Set up glamor for an already-configured GL context. */
Bool
glamor_init(ScreenPtr screen, unsigned int flags)
{
glamor_screen_private *glamor_priv;
int gl_version;
int max_viewport_size[2];
#ifdef RENDER
PictureScreenPtr ps = GetPictureScreenIfSet(screen);
#endif
if (flags & ~GLAMOR_VALID_FLAGS) {
ErrorF("glamor_init: Invalid flags %x\n", flags);
return FALSE;
}
glamor_priv = calloc(1, sizeof(*glamor_priv));
if (glamor_priv == NULL)
return FALSE;
glamor_priv->flags = flags;
if (!dixRegisterPrivateKey(&glamor_screen_private_key, PRIVATE_SCREEN, 0)) {
LogMessage(X_WARNING,
"glamor%d: Failed to allocate screen private\n",
screen->myNum);
goto fail;
}
glamor_set_screen_private(screen, glamor_priv);
if (!dixRegisterPrivateKey(&glamor_pixmap_private_key, PRIVATE_PIXMAP, 0)) {
LogMessage(X_WARNING,
"glamor%d: Failed to allocate pixmap private\n",
screen->myNum);
goto fail;
}
if (!dixRegisterPrivateKey(&glamor_gc_private_key, PRIVATE_GC,
sizeof (glamor_gc_private))) {
LogMessage(X_WARNING,
"glamor%d: Failed to allocate gc private\n",
screen->myNum);
goto fail;
}
if (epoxy_is_desktop_gl())
glamor_priv->gl_flavor = GLAMOR_GL_DESKTOP;
else
glamor_priv->gl_flavor = GLAMOR_GL_ES2;
gl_version = epoxy_gl_version();
/* Would be nice to have a cleaner test for GLSL 1.30 support,
* but for now this should suffice
*/
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP && gl_version >= 30)
glamor_priv->glsl_version = 130;
else
glamor_priv->glsl_version = 120;
/* We'd like to require GL_ARB_map_buffer_range or
* GL_OES_map_buffer_range, since it offers more information to
* the driver than plain old glMapBuffer() or glBufferSubData().
* It's been supported on Mesa on the desktop since 2009 and on
* GLES2 since October 2012. It's supported on Apple's iOS
* drivers for SGX535 and A7, but apparently not on most Android
* devices (the OES extension spec wasn't released until June
* 2012).
*
* 82% of 0 A.D. players (desktop GL) submitting hardware reports
* have support for it, with most of the ones lacking it being on
* Windows with Intel 4-series (G45) graphics or older.
*/
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
if (gl_version < 21) {
ErrorF("Require OpenGL version 2.1 or later.\n");
goto fail;
}
} else {
if (gl_version < 20) {
ErrorF("Require Open GLES2.0 or later.\n");
goto fail;
}
if (!epoxy_has_gl_extension("GL_EXT_texture_format_BGRA8888")) {
ErrorF("GL_EXT_texture_format_BGRA8888 required\n");
goto fail;
}
}
glamor_priv->has_rw_pbo = FALSE;
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
glamor_priv->has_rw_pbo = TRUE;
glamor_priv->has_khr_debug = epoxy_has_gl_extension("GL_KHR_debug");
glamor_priv->has_pack_invert =
epoxy_has_gl_extension("GL_MESA_pack_invert");
glamor_priv->has_fbo_blit =
epoxy_has_gl_extension("GL_EXT_framebuffer_blit");
glamor_priv->has_map_buffer_range =
epoxy_has_gl_extension("GL_ARB_map_buffer_range");
glamor_priv->has_buffer_storage =
epoxy_has_gl_extension("GL_ARB_buffer_storage");
glamor_priv->has_nv_texture_barrier =
epoxy_has_gl_extension("GL_NV_texture_barrier");
glGetIntegerv(GL_MAX_RENDERBUFFER_SIZE, &glamor_priv->max_fbo_size);
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &glamor_priv->max_fbo_size);
glGetIntegerv(GL_MAX_VIEWPORT_DIMS, max_viewport_size);
glamor_priv->max_fbo_size = MIN(glamor_priv->max_fbo_size, max_viewport_size[0]);
glamor_priv->max_fbo_size = MIN(glamor_priv->max_fbo_size, max_viewport_size[1]);
#ifdef MAX_FBO_SIZE
glamor_priv->max_fbo_size = MAX_FBO_SIZE;
#endif
glamor_set_debug_level(&glamor_debug_level);
/* If we are using egl screen, call egl screen init to
* register correct close screen function. */
if (flags & GLAMOR_USE_EGL_SCREEN) {
glamor_egl_screen_init(screen, &glamor_priv->ctx);
} else {
if (!glamor_glx_screen_init(&glamor_priv->ctx))
goto fail;
}
glamor_priv->saved_procs.close_screen = screen->CloseScreen;
screen->CloseScreen = glamor_close_screen;
glamor_priv->saved_procs.create_screen_resources =
screen->CreateScreenResources;
screen->CreateScreenResources = glamor_create_screen_resources;
if (!glamor_font_init(screen))
goto fail;
if (flags & GLAMOR_USE_SCREEN) {
if (!RegisterBlockAndWakeupHandlers(_glamor_block_handler,
_glamor_wakeup_handler,
glamor_priv)) {
goto fail;
}
glamor_priv->saved_procs.create_gc = screen->CreateGC;
screen->CreateGC = glamor_create_gc;
glamor_priv->saved_procs.create_pixmap = screen->CreatePixmap;
screen->CreatePixmap = glamor_create_pixmap;
glamor_priv->saved_procs.destroy_pixmap = screen->DestroyPixmap;
screen->DestroyPixmap = glamor_destroy_pixmap;
glamor_priv->saved_procs.get_spans = screen->GetSpans;
screen->GetSpans = glamor_get_spans;
glamor_priv->saved_procs.get_image = screen->GetImage;
screen->GetImage = glamor_get_image;
glamor_priv->saved_procs.change_window_attributes =
screen->ChangeWindowAttributes;
screen->ChangeWindowAttributes = glamor_change_window_attributes;
glamor_priv->saved_procs.copy_window = screen->CopyWindow;
screen->CopyWindow = glamor_copy_window;
glamor_priv->saved_procs.bitmap_to_region = screen->BitmapToRegion;
screen->BitmapToRegion = glamor_bitmap_to_region;
}
#ifdef RENDER
if (flags & GLAMOR_USE_PICTURE_SCREEN) {
glamor_priv->saved_procs.composite = ps->Composite;
ps->Composite = glamor_composite;
glamor_priv->saved_procs.trapezoids = ps->Trapezoids;
ps->Trapezoids = glamor_trapezoids;
glamor_priv->saved_procs.triangles = ps->Triangles;
ps->Triangles = glamor_triangles;
glamor_priv->saved_procs.addtraps = ps->AddTraps;
ps->AddTraps = glamor_add_traps;
}
glamor_priv->saved_procs.composite_rects = ps->CompositeRects;
ps->CompositeRects = glamor_composite_rectangles;
glamor_priv->saved_procs.glyphs = ps->Glyphs;
ps->Glyphs = glamor_glyphs;
glamor_priv->saved_procs.unrealize_glyph = ps->UnrealizeGlyph;
ps->UnrealizeGlyph = glamor_glyph_unrealize;
glamor_priv->saved_procs.create_picture = ps->CreatePicture;
ps->CreatePicture = glamor_create_picture;
glamor_priv->saved_procs.destroy_picture = ps->DestroyPicture;
ps->DestroyPicture = glamor_destroy_picture;
glamor_init_composite_shaders(screen);
#endif
glamor_priv->saved_procs.set_window_pixmap = screen->SetWindowPixmap;
screen->SetWindowPixmap = glamor_set_window_pixmap;
glamor_init_vbo(screen);
glamor_init_pixmap_fbo(screen);
#ifdef GLAMOR_TRAPEZOID_SHADER
glamor_init_trapezoid_shader(screen);
#endif
glamor_init_finish_access_shaders(screen);
#ifdef GLAMOR_GRADIENT_SHADER
glamor_init_gradient_shader(screen);
#endif
glamor_pixmap_init(screen);
glamor_glyphs_init(screen);
glamor_sync_init(screen);
glamor_priv->screen = screen;
return TRUE;
fail:
free(glamor_priv);
glamor_set_screen_private(screen, NULL);
return FALSE;
}
/** Set up glamor for an already-configured GL context. */
Bool
glamor_init(ScreenPtr screen, unsigned int flags)
{
glamor_screen_private *glamor_priv;
int gl_version;
int glsl_major, glsl_minor;
int max_viewport_size[2];
const char *shading_version_string;
int shading_version_offset;
PictureScreenPtr ps = GetPictureScreenIfSet(screen);
if (flags & ~GLAMOR_VALID_FLAGS) {
ErrorF("glamor_init: Invalid flags %x\n", flags);
return FALSE;
}
glamor_priv = calloc(1, sizeof(*glamor_priv));
if (glamor_priv == NULL)
return FALSE;
glamor_priv->flags = flags;
if (!dixRegisterPrivateKey(&glamor_screen_private_key, PRIVATE_SCREEN, 0)) {
LogMessage(X_WARNING,
"glamor%d: Failed to allocate screen private\n",
screen->myNum);
goto fail;
}
glamor_set_screen_private(screen, glamor_priv);
if (!dixRegisterPrivateKey(&glamor_pixmap_private_key, PRIVATE_PIXMAP,
sizeof(struct glamor_pixmap_private))) {
LogMessage(X_WARNING,
"glamor%d: Failed to allocate pixmap private\n",
screen->myNum);
goto fail;
}
if (!dixRegisterPrivateKey(&glamor_gc_private_key, PRIVATE_GC,
sizeof (glamor_gc_private))) {
LogMessage(X_WARNING,
"glamor%d: Failed to allocate gc private\n",
screen->myNum);
goto fail;
}
glamor_priv->saved_procs.close_screen = screen->CloseScreen;
screen->CloseScreen = glamor_close_screen;
/* If we are using egl screen, call egl screen init to
* register correct close screen function. */
if (flags & GLAMOR_USE_EGL_SCREEN) {
glamor_egl_screen_init(screen, &glamor_priv->ctx);
} else {
if (!glamor_glx_screen_init(&glamor_priv->ctx))
goto fail;
}
glamor_make_current(glamor_priv);
if (epoxy_is_desktop_gl())
glamor_priv->gl_flavor = GLAMOR_GL_DESKTOP;
else
glamor_priv->gl_flavor = GLAMOR_GL_ES2;
gl_version = epoxy_gl_version();
shading_version_string = (char *) glGetString(GL_SHADING_LANGUAGE_VERSION);
if (!shading_version_string) {
LogMessage(X_WARNING,
"glamor%d: Failed to get GLSL version\n",
screen->myNum);
goto fail;
}
shading_version_offset = 0;
if (strncmp("OpenGL ES GLSL ES ", shading_version_string, 18) == 0)
shading_version_offset = 18;
if (sscanf(shading_version_string + shading_version_offset,
"%i.%i",
&glsl_major,
&glsl_minor) != 2) {
LogMessage(X_WARNING,
"glamor%d: Failed to parse GLSL version string %s\n",
screen->myNum, shading_version_string);
goto fail;
}
glamor_priv->glsl_version = glsl_major * 100 + glsl_minor;
if (glamor_priv->gl_flavor == GLAMOR_GL_ES2) {
/* Force us back to the base version of our programs on an ES
* context, anyway. Basically glamor only uses desktop 1.20
* or 1.30 currently. 1.30's new features are also present in
* ES 3.0, but our glamor_program.c constructions use a lot of
* compatibility features (to reduce the diff between 1.20 and
* 1.30 programs).
*/
glamor_priv->glsl_version = 120;
}
/* We'd like to require GL_ARB_map_buffer_range or
* GL_OES_map_buffer_range, since it offers more information to
* the driver than plain old glMapBuffer() or glBufferSubData().
* It's been supported on Mesa on the desktop since 2009 and on
* GLES2 since October 2012. It's supported on Apple's iOS
* drivers for SGX535 and A7, but apparently not on most Android
* devices (the OES extension spec wasn't released until June
* 2012).
*
* 82% of 0 A.D. players (desktop GL) submitting hardware reports
* have support for it, with most of the ones lacking it being on
* Windows with Intel 4-series (G45) graphics or older.
*/
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
if (gl_version < 21) {
ErrorF("Require OpenGL version 2.1 or later.\n");
goto fail;
}
if (!glamor_check_instruction_count(gl_version))
goto fail;
} else {
if (gl_version < 20) {
ErrorF("Require Open GLES2.0 or later.\n");
goto fail;
}
if (!epoxy_has_gl_extension("GL_EXT_texture_format_BGRA8888")) {
ErrorF("GL_EXT_texture_format_BGRA8888 required\n");
goto fail;
}
}
glamor_priv->has_rw_pbo = FALSE;
if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP)
glamor_priv->has_rw_pbo = TRUE;
glamor_priv->has_khr_debug = epoxy_has_gl_extension("GL_KHR_debug");
glamor_priv->has_pack_invert =
epoxy_has_gl_extension("GL_MESA_pack_invert");
glamor_priv->has_fbo_blit =
epoxy_has_gl_extension("GL_EXT_framebuffer_blit");
glamor_priv->has_map_buffer_range =
epoxy_has_gl_extension("GL_ARB_map_buffer_range") ||
epoxy_has_gl_extension("GL_EXT_map_buffer_range");
glamor_priv->has_buffer_storage =
epoxy_has_gl_extension("GL_ARB_buffer_storage");
glamor_priv->has_nv_texture_barrier =
epoxy_has_gl_extension("GL_NV_texture_barrier");
glamor_priv->has_unpack_subimage =
glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP ||
epoxy_gl_version() >= 30 ||
epoxy_has_gl_extension("GL_EXT_unpack_subimage");
glamor_priv->has_pack_subimage =
glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP ||
epoxy_gl_version() >= 30 ||
epoxy_has_gl_extension("GL_NV_pack_subimage");
glamor_priv->has_vertex_array_object =
epoxy_has_gl_extension("GL_ARB_vertex_array_object");
glamor_priv->has_dual_blend =
epoxy_has_gl_extension("GL_ARB_blend_func_extended");
/* assume a core profile if we are GL 3.1 and don't have ARB_compatibility */
glamor_priv->is_core_profile =
gl_version >= 31 && !epoxy_has_gl_extension("GL_ARB_compatibility");
glamor_setup_debug_output(screen);
glamor_priv->use_quads = (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) &&
!glamor_priv->is_core_profile;
/* Driver-specific hack: Avoid using GL_QUADS on VC4, where
* they'll be emulated more expensively than we can with our
* cached IB.
*/
if (strstr((char *)glGetString(GL_VENDOR), "Broadcom") &&
strstr((char *)glGetString(GL_RENDERER), "VC4"))
glamor_priv->use_quads = FALSE;
glGetIntegerv(GL_MAX_RENDERBUFFER_SIZE, &glamor_priv->max_fbo_size);
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &glamor_priv->max_fbo_size);
glGetIntegerv(GL_MAX_VIEWPORT_DIMS, max_viewport_size);
glamor_priv->max_fbo_size = MIN(glamor_priv->max_fbo_size, max_viewport_size[0]);
glamor_priv->max_fbo_size = MIN(glamor_priv->max_fbo_size, max_viewport_size[1]);
#ifdef MAX_FBO_SIZE
glamor_priv->max_fbo_size = MAX_FBO_SIZE;
#endif
glamor_priv->one_channel_format = GL_ALPHA;
if (epoxy_has_gl_extension("GL_ARB_texture_rg") && epoxy_has_gl_extension("GL_ARB_texture_swizzle"))
glamor_priv->one_channel_format = GL_RED;
glamor_set_debug_level(&glamor_debug_level);
glamor_priv->saved_procs.create_screen_resources =
screen->CreateScreenResources;
screen->CreateScreenResources = glamor_create_screen_resources;
if (!glamor_font_init(screen))
goto fail;
glamor_priv->saved_procs.block_handler = screen->BlockHandler;
screen->BlockHandler = _glamor_block_handler;
if (!glamor_composite_glyphs_init(screen)) {
ErrorF("Failed to initialize composite masks\n");
goto fail;
}
glamor_priv->saved_procs.create_gc = screen->CreateGC;
screen->CreateGC = glamor_create_gc;
glamor_priv->saved_procs.create_pixmap = screen->CreatePixmap;
screen->CreatePixmap = glamor_create_pixmap;
glamor_priv->saved_procs.destroy_pixmap = screen->DestroyPixmap;
screen->DestroyPixmap = glamor_destroy_pixmap;
glamor_priv->saved_procs.get_spans = screen->GetSpans;
screen->GetSpans = glamor_get_spans;
glamor_priv->saved_procs.get_image = screen->GetImage;
screen->GetImage = glamor_get_image;
glamor_priv->saved_procs.change_window_attributes =
screen->ChangeWindowAttributes;
screen->ChangeWindowAttributes = glamor_change_window_attributes;
glamor_priv->saved_procs.copy_window = screen->CopyWindow;
screen->CopyWindow = glamor_copy_window;
glamor_priv->saved_procs.bitmap_to_region = screen->BitmapToRegion;
screen->BitmapToRegion = glamor_bitmap_to_region;
glamor_priv->saved_procs.composite = ps->Composite;
ps->Composite = glamor_composite;
glamor_priv->saved_procs.trapezoids = ps->Trapezoids;
ps->Trapezoids = glamor_trapezoids;
glamor_priv->saved_procs.triangles = ps->Triangles;
ps->Triangles = glamor_triangles;
glamor_priv->saved_procs.addtraps = ps->AddTraps;
ps->AddTraps = glamor_add_traps;
glamor_priv->saved_procs.composite_rects = ps->CompositeRects;
ps->CompositeRects = glamor_composite_rectangles;
glamor_priv->saved_procs.glyphs = ps->Glyphs;
ps->Glyphs = glamor_composite_glyphs;
glamor_init_vbo(screen);
glamor_init_pixmap_fbo(screen);
glamor_init_finish_access_shaders(screen);
#ifdef GLAMOR_GRADIENT_SHADER
glamor_init_gradient_shader(screen);
#endif
glamor_pixmap_init(screen);
glamor_sync_init(screen);
glamor_priv->screen = screen;
return TRUE;
fail:
free(glamor_priv);
glamor_set_screen_private(screen, NULL);
return FALSE;
}
Engine::Engine(util::Dir *data_dir, const char *windowtitle)
:
running{false},
drawing_debug_overlay{true},
drawing_huds{true},
engine_coord_data{this->get_coord_data()},
current_player{1},
data_dir{data_dir},
audio_manager{} {
for (uint32_t size : {12, 20}) {
fonts[size] = std::unique_ptr<Font>{new Font{"DejaVu Serif", "Book", size}};
}
this->logsink_file = std::make_unique<log::FileSink>("/tmp/openage-log", true);
// enqueue the engine's own input handler to the
// execution list.
this->register_resize_action(this);
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
throw util::Error(MSG(err) << "SDL video initialization: " << SDL_GetError());
} else {
log::log(MSG(info) << "Initialized SDL video subsystems.");
}
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
int32_t window_flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_MAXIMIZED;
this->window = SDL_CreateWindow(
windowtitle,
SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED,
this->engine_coord_data->window_size.x,
this->engine_coord_data->window_size.y,
window_flags
);
if (this->window == nullptr) {
throw util::Error(MSG(err) << "Failed to create SDL window: " << SDL_GetError());
}
// load support for the PNG image formats, jpg bit: IMG_INIT_JPG
int wanted_image_formats = IMG_INIT_PNG;
int sdlimg_inited = IMG_Init(wanted_image_formats);
if ((sdlimg_inited & wanted_image_formats) != wanted_image_formats) {
throw util::Error(MSG(err) << "Failed to init PNG support: " << IMG_GetError());
}
this->glcontext = SDL_GL_CreateContext(this->window);
if (this->glcontext == nullptr) {
throw util::Error(MSG(err) << "Failed creating OpenGL context: " << SDL_GetError());
}
// check the OpenGL version, for shaders n stuff
if (!epoxy_is_desktop_gl() || epoxy_gl_version() < 21) {
throw util::Error(MSG(err) << "OpenGL 2.1 not available");
}
// to quote the standard doc:
// 'The value gives a rough estimate
// of the largest texture that the GL can handle'
// -> wat?
// anyways, we need at least 1024x1024.
int max_texture_size;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &max_texture_size);
log::log(MSG(dbg) << "Maximum supported texture size: " << max_texture_size);
if (max_texture_size < 1024) {
throw util::Error(MSG(err) << "Maximum supported texture size too small: " << max_texture_size);
}
int max_texture_units;
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &max_texture_units);
log::log(MSG(dbg) << "Maximum supported texture units: " << max_texture_units);
if (max_texture_units < 2) {
throw util::Error(MSG(err) << "Your GPU has too less texture units: " << max_texture_units);
}
// vsync on
SDL_GL_SetSwapInterval(1);
// enable alpha blending
glEnable(GL_BLEND);
// order of drawing relevant for depth
// what gets drawn last is displayed on top.
glDisable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// initialize job manager with cpucount-2 worker threads
int number_of_worker_threads = SDL_GetCPUCount() - 2;
if (number_of_worker_threads <= 0) {
number_of_worker_threads = 1;
}
this->job_manager = new job::JobManager{number_of_worker_threads};
// initialize audio
auto devices = audio::AudioManager::get_devices();
if (devices.empty()) {
throw util::Error{MSG(err) << "No audio devices found"};
}
}
Engine::Engine(util::Dir *data_dir, const char *windowtitle)
:
OptionNode{"Engine"},
running{false},
drawing_debug_overlay{this, "drawing_debug_overlay", true},
drawing_huds{this, "drawing_huds", true},
engine_coord_data{this->get_coord_data()},
current_player{this, "current_player", 1},
data_dir{data_dir},
audio_manager{} {
for (uint32_t size : {12, 20}) {
fonts[size] = std::unique_ptr<Font>{new Font{"DejaVu Serif", "Book", size}};
}
this->logsink_file = std::make_unique<log::FileSink>("/tmp/openage-log", true);
// enqueue the engine's own input handler to the
// execution list.
this->register_resize_action(this);
// register the engines input manager
this->register_input_action(&this->input_manager);
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
throw Error(MSG(err) << "SDL video initialization: " << SDL_GetError());
} else {
log::log(MSG(info) << "Initialized SDL video subsystems.");
}
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
SDL_GL_SetAttribute(SDL_GL_ACCELERATED_VISUAL, 1);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
int32_t window_flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_MAXIMIZED;
this->window = SDL_CreateWindow(
windowtitle,
SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED,
this->engine_coord_data->window_size.x,
this->engine_coord_data->window_size.y,
window_flags
);
if (this->window == nullptr) {
throw Error(MSG(err) << "Failed to create SDL window: " << SDL_GetError());
}
// load support for the PNG image formats, jpg bit: IMG_INIT_JPG
int wanted_image_formats = IMG_INIT_PNG;
int sdlimg_inited = IMG_Init(wanted_image_formats);
if ((sdlimg_inited & wanted_image_formats) != wanted_image_formats) {
throw Error(MSG(err) << "Failed to init PNG support: " << IMG_GetError());
}
this->glcontext = SDL_GL_CreateContext(this->window);
if (this->glcontext == nullptr) {
throw Error(MSG(err) << "Failed creating OpenGL context: " << SDL_GetError());
}
// check the OpenGL version, for shaders n stuff
if (!epoxy_is_desktop_gl() || epoxy_gl_version() < 21) {
throw Error(MSG(err) << "OpenGL 2.1 not available");
}
// to quote the standard doc:
// 'The value gives a rough estimate
// of the largest texture that the GL can handle'
// -> wat?
// anyways, we need at least 1024x1024.
int max_texture_size;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &max_texture_size);
log::log(MSG(dbg) << "Maximum supported texture size: " << max_texture_size);
if (max_texture_size < 1024) {
throw Error(MSG(err) << "Maximum supported texture size too small: " << max_texture_size);
}
int max_texture_units;
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &max_texture_units);
log::log(MSG(dbg) << "Maximum supported texture units: " << max_texture_units);
if (max_texture_units < 2) {
throw Error(MSG(err) << "Your GPU has too less texture units: " << max_texture_units);
}
// vsync on
SDL_GL_SetSwapInterval(1);
// enable alpha blending
glEnable(GL_BLEND);
// order of drawing relevant for depth
// what gets drawn last is displayed on top.
glDisable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// initialize job manager with cpucount-2 worker threads
int number_of_worker_threads = SDL_GetCPUCount() - 2;
if (number_of_worker_threads <= 0) {
number_of_worker_threads = 1;
}
this->job_manager = new job::JobManager{number_of_worker_threads};
// initialize audio
auto devices = audio::AudioManager::get_devices();
if (devices.empty()) {
throw Error{MSG(err) << "No audio devices found"};
}
// initialize engine related global keybinds
auto &global_input_context = this->get_input_manager().get_global_context();
global_input_context.bind(input::action_t::STOP_GAME, [this](const input::action_arg_t &) {
this->stop();
});
global_input_context.bind(input::action_t::TOGGLE_HUD, [this](const input::action_arg_t &) {
this->drawing_huds.value = !this->drawing_huds.value;
});
global_input_context.bind(input::action_t::SCREENSHOT, [this](const input::action_arg_t &) {
this->get_screenshot_manager().save_screenshot();
});
global_input_context.bind(input::action_t::TOGGLE_DEBUG_OVERLAY, [this](const input::action_arg_t &) {
this->drawing_debug_overlay.value = !this->drawing_debug_overlay.value;
});
global_input_context.bind(input::action_t::TOGGLE_PROFILER, [this](const input::action_arg_t &) {
if (this->external_profiler.currently_profiling) {
this->external_profiler.stop();
this->external_profiler.show_results();
} else {
this->external_profiler.start();
}
});
global_input_context.bind(input::event_class::MOUSE, [this](const input::action_arg_t &arg) {
if (arg.e.cc.has_class(input::event_class::MOUSE_MOTION) &&
this->get_input_manager().is_down(input::event_class::MOUSE_BUTTON, 2)) {
this->move_phys_camera(arg.motion.x, arg.motion.y);
return true;
}
return false;
});
// Switching between players with the 1-8 keys
auto bind_player_switch = [this, &global_input_context](input::action_t action, int player) {
global_input_context.bind(action, [this, player](const input::action_arg_t &) {
this->current_player.value = player;
});
};
bind_player_switch(input::action_t::SWITCH_TO_PLAYER_1, 1);
bind_player_switch(input::action_t::SWITCH_TO_PLAYER_2, 2);
bind_player_switch(input::action_t::SWITCH_TO_PLAYER_3, 3);
bind_player_switch(input::action_t::SWITCH_TO_PLAYER_4, 4);
bind_player_switch(input::action_t::SWITCH_TO_PLAYER_5, 5);
bind_player_switch(input::action_t::SWITCH_TO_PLAYER_6, 6);
bind_player_switch(input::action_t::SWITCH_TO_PLAYER_7, 7);
bind_player_switch(input::action_t::SWITCH_TO_PLAYER_8, 8);
}