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07158dfa07
This is intended to be the software fallback path where we have to take Update() and Scanout() method invocations from the Qemu instance. It implements paintable and tries to reuse a backing texture until a threshold has been met at which point it does a full redraw. The backing texture is reused between snapshots to increase the chance that we may skip a followup VRAM upload to the GPU. The damage rectangles will be re-uploaded each frame. There is some opportunity to optimize that last part by keeping them around and adding a secondary damage region. Of course, we would still want things to go the MksDmabufTexture path when possible.
46 lines
1.7 KiB
C
46 lines
1.7 KiB
C
/*
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* mks-framebuffer-private.h
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*
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* Copyright 2023 Christian Hergert <chergert@redhat.com>
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*
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* This program 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 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#pragma once
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#include <gdk/gdk.h>
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G_BEGIN_DECLS
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#define MKS_TYPE_FRAMEBUFFER (mks_framebuffer_get_type())
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G_DECLARE_FINAL_TYPE (MksFramebuffer, mks_framebuffer, MKS, FRAMEBUFFER, GObject)
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MksFramebuffer *mks_framebuffer_new (guint width,
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guint height,
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cairo_format_t format);
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void mks_framebuffer_update (MksFramebuffer *self,
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guint x,
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guint y,
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guint width,
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guint height,
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guint stride,
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cairo_format_t format,
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const guint8 *data,
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gsize data_len);
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G_END_DECLS
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