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[client] egl: refactor damage mesh generation into desktop_rects

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This mesh will later be used to render only damaged portions of the desktop.
We also moved the coordinate transformation for damage overlay into a matrix
and computed by the shader.
This commit is contained in:
Quantum
2021-08-02 18:40:19 -04:00
committed by Geoffrey McRae
parent dd31a7ef93
commit 2dca056526
6 changed files with 306 additions and 158 deletions
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47
client/renderers/EGL/desktop_rects.h Normal file
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/**
* Looking Glass
* Copyright (C) 2017-2021 The Looking Glass Authors
* https://looking-glass.io
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include <stdbool.h>
#include "common/types.h"
#include "interface/renderer.h"
struct DamageRects
{
int count;
FrameDamageRect rects[];
};
typedef struct EGL_DesktopRects EGL_DesktopRects;
bool egl_desktopRectsInit(EGL_DesktopRects ** rects, int maxCount);
void egl_desktopRectsFree(EGL_DesktopRects ** rects);
void egl_desktopRectsMatrix(float matrix[6], int width, int height, float translateX,
float translateY, float scaleX, float scaleY, LG_RendererRotate rotate);
void egl_desktopToScreenMatrix(double matrix[6], int frameWidth, int frameHeight,
double translateX, double translateY, double scaleX, double scaleY, LG_RendererRotate rotate,
double windowWidth, double windowHeight);
struct Rect egl_desktopToScreen(const double matrix[6], const struct FrameDamageRect * rect);
void egl_desktopRectsUpdate(EGL_DesktopRects * rects, const struct DamageRects * data,
int width, int height);
void egl_desktopRectsRender(EGL_DesktopRects * rects);