mirror of
https://github.com/mpv-player/mpv
synced 2024-12-23 23:32:26 +00:00
156 lines
4.8 KiB
C
156 lines
4.8 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 <OpenGL/OpenGL.h>
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#include "cocoa_common.h"
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#include "osdep/macosx_versions.h"
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#include "gl_common.h"
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struct cgl_context {
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CGLPixelFormatObj pix;
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CGLContextObj ctx;
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};
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static int set_swap_interval(int enabled)
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{
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CGLContextObj ctx = CGLGetCurrentContext();
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CGLError err = CGLSetParameter(ctx, kCGLCPSwapInterval, &enabled);
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return (err == kCGLNoError) ? 0 : -1;
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}
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static int cgl_color_size(struct MPGLContext *ctx)
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{
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struct cgl_context *p = ctx->priv;
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GLint value;
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CGLDescribePixelFormat(p->pix, 0, kCGLPFAColorSize, &value);
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return value > 16 ? 8 : 5;
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}
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static bool create_gl_context(struct MPGLContext *ctx)
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{
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struct cgl_context *p = ctx->priv;
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CGLError err;
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CGLOpenGLProfile gl_vers_map[] = {
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[2] = kCGLOGLPVersion_Legacy,
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#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_9
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[3] = kCGLOGLPVersion_GL3_Core,
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[4] = kCGLOGLPVersion_GL4_Core,
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#else
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[3] = kCGLOGLPVersion_3_2_Core,
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#endif
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};
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int gl_major = MPGL_VER_GET_MAJOR(ctx->requested_gl_version);
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if (gl_major < 2 || gl_major >= MP_ARRAY_SIZE(gl_vers_map)) {
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MP_FATAL(ctx->vo, "OpenGL major version %d not supported", gl_major);
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return false;
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}
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CGLPixelFormatAttribute attrs[] = {
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kCGLPFAOpenGLProfile,
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(CGLPixelFormatAttribute) gl_vers_map[gl_major],
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kCGLPFADoubleBuffer,
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kCGLPFAAccelerated,
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#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_8
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// leave this as the last entry of the array to not break the fallback
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// code
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kCGLPFASupportsAutomaticGraphicsSwitching,
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#endif
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0
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};
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GLint npix;
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err = CGLChoosePixelFormat(attrs, &p->pix, &npix);
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if (err == kCGLBadAttribute) {
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// kCGLPFASupportsAutomaticGraphicsSwitching is probably not supported
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// by the current hardware. Falling back to not using it.
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MP_ERR(ctx->vo, "error creating CGL pixel format with automatic GPU "
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"switching. falling back\n");
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attrs[MP_ARRAY_SIZE(attrs) - 2] = 0;
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err = CGLChoosePixelFormat(attrs, &p->pix, &npix);
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}
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if (err != kCGLNoError) {
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MP_FATAL(ctx->vo, "error creating CGL pixel format: %s (%d)\n",
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CGLErrorString(err), err);
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}
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if ((err = CGLCreateContext(p->pix, 0, &p->ctx)) != kCGLNoError) {
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MP_FATAL(ctx->vo, "error creating CGL context: %s (%d)\n",
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CGLErrorString(err), err);
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return false;
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}
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vo_cocoa_create_nsgl_ctx(ctx->vo, p->ctx);
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ctx->depth_r = ctx->depth_g = ctx->depth_b = cgl_color_size(ctx);
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mpgl_load_functions(ctx->gl, (void *)vo_cocoa_glgetaddr, NULL, ctx->vo->log);
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CGLReleasePixelFormat(p->pix);
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return true;
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}
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static bool config_window_cocoa(struct MPGLContext *ctx, int flags)
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{
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struct cgl_context *p = ctx->priv;
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if (p->ctx == NULL)
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if (!create_gl_context(ctx))
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return false;
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if (!ctx->gl->SwapInterval)
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ctx->gl->SwapInterval = set_swap_interval;
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vo_cocoa_config_window(ctx->vo, flags, p->ctx);
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return true;
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}
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static void releaseGlContext_cocoa(MPGLContext *ctx)
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{
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struct cgl_context *p = ctx->priv;
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vo_cocoa_release_nsgl_ctx(ctx->vo);
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CGLReleaseContext(p->ctx);
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}
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static void swapGlBuffers_cocoa(MPGLContext *ctx)
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{
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vo_cocoa_swap_buffers(ctx->vo);
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}
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static void set_current_cocoa(MPGLContext *ctx, bool current)
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{
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vo_cocoa_set_current_context(ctx->vo, current);
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}
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void mpgl_set_backend_cocoa(MPGLContext *ctx)
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{
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ctx->priv = talloc_zero(ctx, struct cgl_context);
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ctx->config_window = config_window_cocoa;
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ctx->releaseGlContext = releaseGlContext_cocoa;
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ctx->swapGlBuffers = swapGlBuffers_cocoa;
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ctx->vo_init = vo_cocoa_init;
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ctx->vo_uninit = vo_cocoa_uninit;
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ctx->vo_control = vo_cocoa_control;
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ctx->set_current = set_current_cocoa;
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}
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