mirror of
https://github.com/gnif/LookingGlass.git
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74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/**
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* Looking Glass
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* Copyright © 2017-2021 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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 this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "eglutil.h"
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#include "common/debug.h"
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#include "egl_dynprocs.h"
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#include "util.h"
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void swapWithDamageInit(struct SwapWithDamageData * data, EGLDisplay display)
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{
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const char *exts = eglQueryString(display, EGL_EXTENSIONS);
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data->init = true;
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if (util_hasGLExt(exts, "EGL_KHR_swap_buffers_with_damage") && g_egl_dynProcs.eglSwapBuffersWithDamageKHR)
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{
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data->func = g_egl_dynProcs.eglSwapBuffersWithDamageKHR;
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DEBUG_INFO("Using EGL_KHR_swap_buffers_with_damage");
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}
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else if (util_hasGLExt(exts, "EGL_EXT_swap_buffers_with_damage") && g_egl_dynProcs.eglSwapBuffersWithDamageEXT)
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{
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data->func = g_egl_dynProcs.eglSwapBuffersWithDamageEXT;
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DEBUG_INFO("Using EGL_EXT_swap_buffers_with_damage");
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}
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else
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{
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data->func = NULL;
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DEBUG_INFO("Swapping buffers with damage: not supported");
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}
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}
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void swapWithDamageDisable(struct SwapWithDamageData * data)
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{
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data->init = false;
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data->func = NULL;
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}
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void swapWithDamage(struct SwapWithDamageData * data, EGLDisplay display, EGLSurface surface,
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const struct Rect * damage, int count)
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{
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if (!data->func || !count)
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{
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eglSwapBuffers(display, surface);
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return;
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}
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EGLint rects[count * 4];
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for (int i = 0; i < count; ++i)
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{
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rects[i * 4 + 0] = damage[i].x;
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rects[i * 4 + 1] = damage[i].y;
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rects[i * 4 + 2] = damage[i].w;
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rects[i * 4 + 3] = damage[i].h;
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}
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data->func(display, surface, rects, count);
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}
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