mirror of https://github.com/mpv-player/mpv
247 lines
7.8 KiB
C
247 lines
7.8 KiB
C
/*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* You can alternatively redistribute this file 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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#include <wayland-egl.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include "wayland_common.h"
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#include "gl_common.h"
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struct egl_context {
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EGLSurface egl_surface;
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struct wl_egl_window *egl_window;
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struct {
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EGLDisplay dpy;
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EGLContext ctx;
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EGLConfig conf;
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} egl;
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};
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static void egl_resize_func(struct vo_wayland_state *wl,
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uint32_t edges,
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int32_t width,
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int32_t height,
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void *user_data)
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{
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struct vo_wayland_window *w = wl->window;
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struct egl_context *ctx = user_data;
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int32_t minimum_size = 150;
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int32_t x, y;
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/* get the real window size of the window */
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wl_egl_window_get_attached_size(ctx->egl_window,
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&wl->window->width,
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&wl->window->height);
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if (width < minimum_size)
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width = minimum_size;
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if (height < minimum_size)
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height = minimum_size;
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/* if only the height is changed we have to calculate the width
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* in any other case we calculate the height */
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if (edges == WL_SHELL_SURFACE_RESIZE_BOTTOM ||
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edges == WL_SHELL_SURFACE_RESIZE_TOP)
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width = wl->vo->aspdat.asp * height;
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else
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height = (1 / wl->vo->aspdat.asp) * width;
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if (edges & WL_SHELL_SURFACE_RESIZE_LEFT)
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x = w->width - width;
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else
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x = 0;
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if (edges & WL_SHELL_SURFACE_RESIZE_TOP)
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y = w->height - height;
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else
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y = 0;
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wl_egl_window_resize(ctx->egl_window, width, height, x, y);
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w->width = width;
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w->height = height;
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/* set size for mplayer */
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wl->vo->dwidth = width;
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wl->vo->dheight = height;
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}
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static bool egl_create_context(struct vo_wayland_state *wl,
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struct egl_context *egl_ctx,
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MPGLContext *ctx,
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bool enable_alpha)
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{
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EGLint major, minor, n;
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GL *gl = ctx->gl;
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const char *eglstr = "";
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if (!(egl_ctx->egl.dpy = eglGetDisplay(wl->display->display)))
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return false;
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EGLint config_attribs[] = {
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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, enable_alpha,
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EGL_DEPTH_SIZE, 1,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
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EGL_NONE
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};
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/* major and minor here returns the supported EGL version (e.g.: 1.4) */
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if (eglInitialize(egl_ctx->egl.dpy, &major, &minor) != EGL_TRUE)
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return false;
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EGLint context_attribs[] = {
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EGL_CONTEXT_MAJOR_VERSION_KHR,
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MPGL_VER_GET_MAJOR(ctx->requested_gl_version),
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/* EGL_CONTEXT_MINOR_VERSION_KHR, */
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/* MPGL_VER_GET_MINOR(ctx->requested_gl_version), */
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/* EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR, 0, */
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/* Segfaults on anything else than the major version */
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EGL_NONE
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};
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if (eglBindAPI(EGL_OPENGL_API) != EGL_TRUE)
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return false;
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eglChooseConfig(egl_ctx->egl.dpy, config_attribs,
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&egl_ctx->egl.conf, 1, &n);
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egl_ctx->egl.ctx = eglCreateContext(egl_ctx->egl.dpy,
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egl_ctx->egl.conf,
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EGL_NO_CONTEXT,
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context_attribs);
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if (!egl_ctx->egl.ctx)
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return false;
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eglMakeCurrent(egl_ctx->egl.dpy, NULL, NULL, egl_ctx->egl.ctx);
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eglstr = eglQueryString(egl_ctx->egl.dpy, EGL_EXTENSIONS);
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mpgl_load_functions(gl, (void*(*)(const GLubyte*))eglGetProcAddress, eglstr);
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if (!gl->BindProgram)
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mpgl_load_functions(gl, NULL, eglstr);
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return true;
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}
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static void egl_create_window(struct vo_wayland_state *wl,
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struct egl_context *egl_ctx,
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uint32_t width,
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uint32_t height)
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{
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egl_ctx->egl_window = wl_egl_window_create(wl->window->surface,
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wl->window->width,
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wl->window->height);
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egl_ctx->egl_surface = eglCreateWindowSurface(egl_ctx->egl.dpy,
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egl_ctx->egl.conf,
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egl_ctx->egl_window,
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NULL);
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eglMakeCurrent(egl_ctx->egl.dpy,
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egl_ctx->egl_surface,
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egl_ctx->egl_surface,
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egl_ctx->egl.ctx);
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wl_display_dispatch_pending(wl->display->display);
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}
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static bool config_window_wayland(struct MPGLContext *ctx,
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uint32_t d_width,
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uint32_t d_height,
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uint32_t flags)
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{
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struct egl_context * egl_ctx = ctx->priv;
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struct vo_wayland_state * wl = ctx->vo->wayland;
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bool enable_alpha = !!(flags & VOFLAG_ALPHA);
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bool ret = false;
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wl->window->resize_func = egl_resize_func;
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wl->window->resize_func_data = (void*) egl_ctx;
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if (!vo_wayland_config(ctx->vo, d_width, d_height, flags))
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return false;
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if (!egl_ctx->egl.ctx) {
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/* Create OpenGL context */
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ret = egl_create_context(wl, egl_ctx, ctx, enable_alpha);
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/* If successfully created the context and we don't want to hide the
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* window than also create the window immediately */
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if (ret && !(VOFLAG_HIDDEN & flags))
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egl_create_window(wl, egl_ctx, d_width, d_height);
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return ret;
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}
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else {
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/* If the window exists just resize it */
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if (egl_ctx->egl_window)
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egl_resize_func(wl, 0, d_width, d_height, egl_ctx);
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else {
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/* If the context exists and the hidden flag is unset then
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* create the window */
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if (!(VOFLAG_HIDDEN & flags))
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egl_create_window(wl, egl_ctx, d_width, d_height);
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}
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return true;
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}
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}
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static void releaseGlContext_wayland(MPGLContext *ctx)
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{
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GL *gl = ctx->gl;
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struct egl_context * egl_ctx = ctx->priv;
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gl->Finish();
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eglMakeCurrent(egl_ctx->egl.dpy, NULL, NULL, EGL_NO_CONTEXT);
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eglDestroyContext(egl_ctx->egl.dpy, egl_ctx->egl.ctx);
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eglTerminate(egl_ctx->egl.dpy);
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eglReleaseThread();
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wl_egl_window_destroy(egl_ctx->egl_window);
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egl_ctx->egl.ctx = NULL;
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}
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static void swapGlBuffers_wayland(MPGLContext *ctx)
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{
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struct egl_context * egl_ctx = ctx->priv;
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eglSwapBuffers(egl_ctx->egl.dpy, egl_ctx->egl_surface);
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}
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void mpgl_set_backend_wayland(MPGLContext *ctx)
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{
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ctx->priv = talloc_zero(ctx, struct egl_context);
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ctx->config_window = config_window_wayland;
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ctx->releaseGlContext = releaseGlContext_wayland;
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ctx->swapGlBuffers = swapGlBuffers_wayland;
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ctx->vo_control = vo_wayland_control;
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ctx->vo_init = vo_wayland_init;
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ctx->vo_uninit = vo_wayland_uninit;
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}
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