mirror of
https://github.com/mpv-player/mpv
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6dc9280b58
Add a function to egl_helpers.c for creating an EGL context and make context_x11egl.c use it. This is meant to be generic, and should work with other windowing APIs as well. The other EGL-using code in mpv can be switched to it.
117 lines
3.5 KiB
C
117 lines
3.5 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "common/common.h"
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#include "egl_helpers.h"
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#include "common.h"
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#include "context.h"
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// EGL 1.5
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#ifndef EGL_CONTEXT_OPENGL_PROFILE_MASK
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#define EGL_CONTEXT_OPENGL_PROFILE_MASK 0x30FD
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#define EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT 0x00000001
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#endif
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static bool create_context(EGLDisplay display, struct mp_log *log, int msgl,
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int vo_flags,
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EGLContext *out_context, EGLConfig *out_config)
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{
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bool es = vo_flags & VOFLAG_GLES;
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mp_msg(log, MSGL_V, "Trying to create %s context.\n", es ? "GLES" : "GL");
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if (!eglBindAPI(es ? EGL_OPENGL_ES_API : EGL_OPENGL_API)) {
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mp_msg(log, msgl, "Could not bind API!\n");
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return false;
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}
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EGLint attributes[] = {
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EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
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EGL_RED_SIZE, 1,
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EGL_GREEN_SIZE, 1,
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EGL_BLUE_SIZE, 1,
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EGL_ALPHA_SIZE, (vo_flags & VOFLAG_ALPHA ) ? 1 : 0,
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EGL_DEPTH_SIZE, 0,
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EGL_RENDERABLE_TYPE, es ? EGL_OPENGL_ES2_BIT : EGL_OPENGL_BIT,
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EGL_NONE
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};
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EGLint config_count;
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EGLConfig config;
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eglChooseConfig(display, attributes, &config, 1, &config_count);
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if (!config_count) {
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mp_msg(log, msgl, "Could not find EGL configuration!\n");
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return false;
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}
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EGLint context_attributes[] = {
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// aka EGL_CONTEXT_MAJOR_VERSION_KHR
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EGL_CONTEXT_CLIENT_VERSION, es ? 2 : 3,
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EGL_NONE, EGL_NONE,
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EGL_NONE
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};
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if (!es) {
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context_attributes[2] = EGL_CONTEXT_OPENGL_PROFILE_MASK;
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context_attributes[3] = EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT;
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}
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EGLContext *ctx = eglCreateContext(display, config,
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EGL_NO_CONTEXT, context_attributes);
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if (!ctx) {
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mp_msg(log, msgl, "Could not create EGL context!\n");
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return false;
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}
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*out_context = ctx;
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*out_config = config;
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return true;
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}
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// Create a context and return it and the config it was created with. If it
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// returns false, the out_* pointers are set to NULL.
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// vo_flags is a combination of VOFLAG_* values.
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bool mpegl_create_context(EGLDisplay display, struct mp_log *log, int vo_flags,
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EGLContext *out_context, EGLConfig *out_config)
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{
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*out_context = NULL;
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*out_config = NULL;
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int clean_flags = vo_flags & ~(unsigned)(VOFLAG_GLES | VOFLAG_NO_GLES);
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int msgl = vo_flags & VOFLAG_PROBING ? MSGL_V : MSGL_FATAL;
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if (!(vo_flags & VOFLAG_GLES)) {
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if (create_context(display, log, msgl, clean_flags,
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out_context, out_config))
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return true;
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}
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if (!(vo_flags & VOFLAG_NO_GLES)) {
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if (create_context(display, log, msgl, clean_flags | VOFLAG_GLES,
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out_context, out_config))
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return true;
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}
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mp_msg(log, msgl, "Could not create a GL context.\n");
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return false;
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}
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