static bool create_context_x11_gl3(struct MPGLContext *ctx, int vo_flags,
int gl_version, bool es)
{
struct glx_context *glx_ctx = ctx->priv;
struct vo *vo = ctx->vo;
if (glx_ctx->context)
return true;
glXCreateContextAttribsARBProc glXCreateContextAttribsARB =
(glXCreateContextAttribsARBProc)
glXGetProcAddressARB((const GLubyte *)"glXCreateContextAttribsARB");
const char *glxstr =
glXQueryExtensionsString(vo->x11->display, vo->x11->screen);
bool have_ctx_ext = glxstr && !!strstr(glxstr, "GLX_ARB_create_context");
if (!(have_ctx_ext && glXCreateContextAttribsARB)) {
return false;
}
int ctx_flags = vo_flags & VOFLAG_GL_DEBUG ? GLX_CONTEXT_DEBUG_BIT_ARB : 0;
int profile_mask = GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
if (es) {
profile_mask = GLX_CONTEXT_ES2_PROFILE_BIT_EXT;
if (!(glxstr && strstr(glxstr, "GLX_EXT_create_context_es2_profile")))
return false;
}
int context_attribs[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, MPGL_VER_GET_MAJOR(gl_version),
GLX_CONTEXT_MINOR_VERSION_ARB, MPGL_VER_GET_MINOR(gl_version),
GLX_CONTEXT_PROFILE_MASK_ARB, profile_mask,
GLX_CONTEXT_FLAGS_ARB, ctx_flags,
None
};
vo_x11_silence_xlib(1);
GLXContext context = glXCreateContextAttribsARB(vo->x11->display,
glx_ctx->fbc, 0, True,
context_attribs);
vo_x11_silence_xlib(-1);
if (!context) {
MP_VERBOSE(vo, "Could not create GL3 context. Retrying with legacy context.\n");
return false;
}
// set context
if (!glXMakeCurrent(vo->x11->display, vo->x11->window, context)) {
MP_FATAL(vo, "Could not set GLX context!\n");
glXDestroyContext(vo->x11->display, context);
return false;
}
glx_ctx->context = context;
mpgl_load_functions(ctx->gl, (void *)glXGetProcAddressARB, glxstr, vo->log);
return true;
}
static bool create_context_x11_gl3(struct MPGLContext *ctx, bool debug)
{
struct glx_context *glx_ctx = ctx->priv;
struct vo *vo = ctx->vo;
if (glx_ctx->context)
return true;
glXCreateContextAttribsARBProc glXCreateContextAttribsARB =
(glXCreateContextAttribsARBProc)
glXGetProcAddressARB((const GLubyte *)"glXCreateContextAttribsARB");
const char *glxstr = "";
const char *(*glXExtStr)(Display *, int)
= mp_getdladdr("glXQueryExtensionsString");
if (glXExtStr)
glxstr = glXExtStr(vo->x11->display, vo->x11->screen);
bool have_ctx_ext = glxstr && !!strstr(glxstr, "GLX_ARB_create_context");
if (!(have_ctx_ext && glXCreateContextAttribsARB)) {
return false;
}
int gl_version = ctx->requested_gl_version;
int context_attribs[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, MPGL_VER_GET_MAJOR(gl_version),
GLX_CONTEXT_MINOR_VERSION_ARB, MPGL_VER_GET_MINOR(gl_version),
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
GLX_CONTEXT_FLAGS_ARB, debug ? GLX_CONTEXT_DEBUG_BIT_ARB : 0,
None
};
GLXContext context = glXCreateContextAttribsARB(vo->x11->display,
glx_ctx->fbc, 0, True,
context_attribs);
if (!context) {
MP_ERR(vo, "Could not create GL3 context. Retrying with legacy context.\n");
return false;
}
// set context
if (!glXMakeCurrent(vo->x11->display, vo->x11->window, context)) {
MP_FATAL(vo, "Could not set GLX context!\n");
glXDestroyContext(vo->x11->display, context);
return false;
}
glx_ctx->context = context;
mpgl_load_functions(ctx->gl, (void *)glXGetProcAddress, glxstr, vo->log);
if (!glXIsDirect(vo->x11->display, context))
ctx->gl->mpgl_caps &= ~MPGL_CAP_NO_SW;
return true;
}
static bool egl_create_context(struct vo_wayland_state *wl,
MPGLContext *ctx,
bool enable_alpha)
{
EGLint major, minor, n;
GL *gl = ctx->gl;
const char *eglstr = "";
if (!(wl->egl_context.egl.dpy = eglGetDisplay(wl->display.display)))
return false;
EGLint config_attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_ALPHA_SIZE, enable_alpha,
EGL_DEPTH_SIZE, 1,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE
};
/* major and minor here returns the supported EGL version (e.g.: 1.4) */
if (eglInitialize(wl->egl_context.egl.dpy, &major, &minor) != EGL_TRUE)
return false;
MP_VERBOSE(wl, "EGL version %d.%d\n", major, minor);
EGLint context_attribs[] = {
EGL_CONTEXT_MAJOR_VERSION_KHR,
MPGL_VER_GET_MAJOR(ctx->requested_gl_version),
EGL_NONE
};
if (eglBindAPI(EGL_OPENGL_API) != EGL_TRUE)
return false;
eglChooseConfig(wl->egl_context.egl.dpy, config_attribs,
&wl->egl_context.egl.conf, 1, &n);
wl->egl_context.egl.ctx = eglCreateContext(wl->egl_context.egl.dpy,
wl->egl_context.egl.conf,
EGL_NO_CONTEXT,
context_attribs);
if (!wl->egl_context.egl.ctx) {
/* fallback to any GL version */
MP_WARN(wl, "can't create context for requested OpenGL version: "
"fall back to any version available\n");
context_attribs[0] = EGL_NONE;
wl->egl_context.egl.ctx = eglCreateContext(wl->egl_context.egl.dpy,
wl->egl_context.egl.conf,
EGL_NO_CONTEXT,
context_attribs);
if (!wl->egl_context.egl.ctx)
return false;
}
eglMakeCurrent(wl->egl_context.egl.dpy, NULL, NULL, wl->egl_context.egl.ctx);
eglstr = eglQueryString(wl->egl_context.egl.dpy, EGL_EXTENSIONS);
mpgl_load_functions(gl, (void*(*)(const GLubyte*))eglGetProcAddress, eglstr,
wl->log);
if (!gl->BindProgram)
mpgl_load_functions(gl, NULL, eglstr, wl->log);
return true;
}
static bool create_context_w32_gl3(struct MPGLContext *ctx)
{
struct w32_context *w32_ctx = ctx->priv;
HGLRC *context = &w32_ctx->context;
if (*context) // reuse existing context
return true; // not reusing it breaks gl3!
HWND win = ctx->vo->w32->window;
HDC windc = GetDC(win);
HGLRC new_context = 0;
new_context = wglCreateContext(windc);
if (!new_context) {
MP_FATAL(ctx->vo, "Could not create GL context!\n");
return false;
}
// set context
if (!wglMakeCurrent(windc, new_context)) {
MP_FATAL(ctx->vo, "Could not set GL context!\n");
goto out;
}
const char *(GLAPIENTRY *wglGetExtensionsStringARB)(HDC hdc)
= w32gpa((const GLubyte*)"wglGetExtensionsStringARB");
if (!wglGetExtensionsStringARB)
goto unsupported;
const char *wgl_exts = wglGetExtensionsStringARB(windc);
if (!strstr(wgl_exts, "WGL_ARB_create_context"))
goto unsupported;
HGLRC (GLAPIENTRY *wglCreateContextAttribsARB)(HDC hDC, HGLRC hShareContext,
const int *attribList)
= w32gpa((const GLubyte*)"wglCreateContextAttribsARB");
if (!wglCreateContextAttribsARB)
goto unsupported;
int gl_version = ctx->requested_gl_version;
int attribs[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, MPGL_VER_GET_MAJOR(gl_version),
WGL_CONTEXT_MINOR_VERSION_ARB, MPGL_VER_GET_MINOR(gl_version),
WGL_CONTEXT_FLAGS_ARB, 0,
WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
0
};
*context = wglCreateContextAttribsARB(windc, 0, attribs);
if (! *context) {
// NVidia, instead of ignoring WGL_CONTEXT_FLAGS_ARB, will error out if
// it's present on pre-3.2 contexts.
// Remove it from attribs and retry the context creation.
attribs[6] = attribs[7] = 0;
*context = wglCreateContextAttribsARB(windc, 0, attribs);
}
if (! *context) {
int err = GetLastError();
MP_FATAL(ctx->vo, "Could not create an OpenGL 3.x context: error 0x%x\n", err);
goto out;
}
wglMakeCurrent(NULL, NULL);
wglDeleteContext(new_context);
if (!wglMakeCurrent(windc, *context)) {
MP_FATAL(ctx->vo, "Could not set GL3 context!\n");
wglDeleteContext(*context);
return false;
}
/* update function pointers */
mpgl_load_functions(ctx->gl, w32gpa, NULL, ctx->vo->log);
int pfmt = GetPixelFormat(windc);
PIXELFORMATDESCRIPTOR pfd;
if (DescribePixelFormat(windc, pfmt, sizeof(PIXELFORMATDESCRIPTOR), &pfd)) {
ctx->depth_r = pfd.cRedBits;
ctx->depth_g = pfd.cGreenBits;
ctx->depth_b = pfd.cBlueBits;
}
return true;
unsupported:
MP_ERR(ctx->vo, "The current OpenGL implementation does not support OpenGL 3.x \n");
out:
wglDeleteContext(new_context);
return false;
}
static bool create_context_w32_gl3(struct MPGLContext *ctx)
{
struct w32_context *w32_ctx = ctx->priv;
HDC windc = w32_ctx->hdc;
HGLRC context = 0;
// A legacy context is needed to get access to the new functions.
HGLRC legacy_context = wglCreateContext(windc);
if (!legacy_context) {
MP_FATAL(ctx->vo, "Could not create GL context!\n");
return false;
}
// set context
if (!wglMakeCurrent(windc, legacy_context)) {
MP_FATAL(ctx->vo, "Could not set GL context!\n");
goto out;
}
const char *(GLAPIENTRY *wglGetExtensionsStringARB)(HDC hdc)
= w32gpa((const GLubyte*)"wglGetExtensionsStringARB");
if (!wglGetExtensionsStringARB)
goto unsupported;
const char *wgl_exts = wglGetExtensionsStringARB(windc);
if (!strstr(wgl_exts, "WGL_ARB_create_context"))
goto unsupported;
HGLRC (GLAPIENTRY *wglCreateContextAttribsARB)(HDC hDC, HGLRC hShareContext,
const int *attribList)
= w32gpa((const GLubyte*)"wglCreateContextAttribsARB");
if (!wglCreateContextAttribsARB)
goto unsupported;
int gl_version = ctx->requested_gl_version;
int attribs[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, MPGL_VER_GET_MAJOR(gl_version),
WGL_CONTEXT_MINOR_VERSION_ARB, MPGL_VER_GET_MINOR(gl_version),
WGL_CONTEXT_FLAGS_ARB, 0,
WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
0
};
context = wglCreateContextAttribsARB(windc, 0, attribs);
if (!context) {
// NVidia, instead of ignoring WGL_CONTEXT_FLAGS_ARB, will error out if
// it's present on pre-3.2 contexts.
// Remove it from attribs and retry the context creation.
attribs[6] = attribs[7] = 0;
context = wglCreateContextAttribsARB(windc, 0, attribs);
}
if (!context) {
int err = GetLastError();
MP_FATAL(ctx->vo, "Could not create an OpenGL 3.x context: error 0x%x\n", err);
goto out;
}
wglMakeCurrent(windc, NULL);
wglDeleteContext(legacy_context);
if (!wglMakeCurrent(windc, context)) {
MP_FATAL(ctx->vo, "Could not set GL3 context!\n");
wglDeleteContext(context);
return false;
}
w32_ctx->context = context;
/* update function pointers */
mpgl_load_functions(ctx->gl, w32gpa, NULL, ctx->vo->log);
return true;
unsupported:
MP_ERR(ctx->vo, "The OpenGL driver does not support OpenGL 3.x \n");
out:
wglMakeCurrent(windc, NULL);
wglDeleteContext(legacy_context);
return false;
}
static bool egl_create_context(struct vo_wayland_state *wl,
struct egl_context *egl_ctx,
MPGLContext *ctx,
bool enable_alpha)
{
EGLint major, minor, n;
GL *gl = ctx->gl;
const char *eglstr = "";
if (!(egl_ctx->egl.dpy = eglGetDisplay(wl->display->display)))
return false;
EGLint config_attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_ALPHA_SIZE, enable_alpha,
EGL_DEPTH_SIZE, 1,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE
};
/* major and minor here returns the supported EGL version (e.g.: 1.4) */
if (eglInitialize(egl_ctx->egl.dpy, &major, &minor) != EGL_TRUE)
return false;
EGLint context_attribs[] = {
EGL_CONTEXT_MAJOR_VERSION_KHR,
MPGL_VER_GET_MAJOR(ctx->requested_gl_version),
/* EGL_CONTEXT_MINOR_VERSION_KHR, */
/* MPGL_VER_GET_MINOR(ctx->requested_gl_version), */
/* EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR, 0, */
/* Segfaults on anything else than the major version */
EGL_NONE
};
if (eglBindAPI(EGL_OPENGL_API) != EGL_TRUE)
return false;
eglChooseConfig(egl_ctx->egl.dpy, config_attribs,
&egl_ctx->egl.conf, 1, &n);
egl_ctx->egl.ctx = eglCreateContext(egl_ctx->egl.dpy,
egl_ctx->egl.conf,
EGL_NO_CONTEXT,
context_attribs);
if (!egl_ctx->egl.ctx)
return false;
eglMakeCurrent(egl_ctx->egl.dpy, NULL, NULL, egl_ctx->egl.ctx);
eglstr = eglQueryString(egl_ctx->egl.dpy, EGL_EXTENSIONS);
mpgl_load_functions(gl, (void*(*)(const GLubyte*))eglGetProcAddress, eglstr);
if (!gl->BindProgram)
mpgl_load_functions(gl, NULL, eglstr);
return true;
}
