mirror of
https://github.com/gnif/LookingGlass.git
synced 2025-08-09 20:24:14 +00:00
.github
client
audiodevs
cmake
displayservers
include
renderers
EGL
shader
CMakeLists.txt
cursor.c
cursor.h
damage.c
damage.h
desktop.c
desktop.h
desktop_rects.c
desktop_rects.h
draw.c
draw.h
egl.c
egl.h
egldebug.c
egldebug.h
egltypes.h
ffx.c
ffx.h
filter.c
filter.h
filter_downscale.c
filter_ffx_cas.c
filter_ffx_fsr1.c
filters.h
framebuffer.c
framebuffer.h
glsl.include.awk
model.c
model.h
postprocess.c
postprocess.h
shader.c
shader.h
splash.c
splash.h
texture.c
texture.h
texture_buffer.c
texture_buffer.h
texture_dmabuf.c
texture_framebuffer.c
texture_util.c
texture_util.h
OpenGL
CMakeLists.txt
src
CMakeLists.txt
DEBUGGING.md
cmake
common
contrib
doc
host
module
obs
profile
repos
resources
vendor
.gitattributes
.gitignore
.gitmodules
AUTHORS
CONTRIBUTORS
LICENSE
README.md
gl-check
refresh-copyright
version.cmake
109 lines
2.8 KiB
C
109 lines
2.8 KiB
C
/**
|
|
* Looking Glass
|
|
* Copyright © 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
|
|
*/
|
|
|
|
#include "framebuffer.h"
|
|
#include "texture.h"
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include "common/debug.h"
|
|
|
|
struct EGL_Framebuffer
|
|
{
|
|
GLuint fbo;
|
|
EGL_Texture * tex;
|
|
};
|
|
|
|
bool egl_framebufferInit(EGL_Framebuffer ** fb)
|
|
{
|
|
EGL_Framebuffer * this = calloc(1, sizeof(*this));
|
|
if (!this)
|
|
{
|
|
DEBUG_ERROR("Failed to allocate ram");
|
|
return false;
|
|
}
|
|
|
|
if (!egl_textureInit(&this->tex, NULL, EGL_TEXTYPE_BUFFER, false))
|
|
{
|
|
DEBUG_ERROR("Failed to initialize the texture");
|
|
return false;
|
|
}
|
|
|
|
glGenFramebuffers(1, &this->fbo);
|
|
|
|
*fb = this;
|
|
return true;
|
|
}
|
|
|
|
void egl_framebufferFree(EGL_Framebuffer ** fb)
|
|
{
|
|
EGL_Framebuffer * this = *fb;
|
|
|
|
egl_textureFree(&this->tex);
|
|
free(this);
|
|
*fb = NULL;
|
|
}
|
|
|
|
bool egl_framebufferSetup(EGL_Framebuffer * this, enum EGL_PixelFormat pixFmt,
|
|
unsigned int width, unsigned int height)
|
|
{
|
|
if (!egl_textureSetup(this->tex, pixFmt, width, height, 0))
|
|
{
|
|
DEBUG_ERROR("Failed to setup the texture");
|
|
return false;
|
|
}
|
|
|
|
GLuint tex;
|
|
egl_textureGet(this->tex, &tex, NULL, NULL);
|
|
|
|
glBindTexture(GL_TEXTURE_2D, tex);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
|
|
glBindFramebuffer(GL_FRAMEBUFFER, this->fbo);
|
|
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
|
|
GL_TEXTURE_2D, tex, 0);
|
|
glDrawBuffers(1, &(GLenum){GL_COLOR_ATTACHMENT0});
|
|
|
|
GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
|
|
if (status != GL_FRAMEBUFFER_COMPLETE)
|
|
{
|
|
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
|
DEBUG_ERROR("Failed to setup the framebuffer: 0x%x", status);
|
|
return false;
|
|
}
|
|
glBindFramebuffer(GL_FRAMEBUFFER, 0);
|
|
|
|
return true;
|
|
}
|
|
|
|
void egl_framebufferBind(EGL_Framebuffer * this)
|
|
{
|
|
glBindFramebuffer(GL_FRAMEBUFFER, this->fbo);
|
|
glViewport(0, 0, this->tex->format.width, this->tex->format.height);
|
|
}
|
|
|
|
GLuint egl_framebufferGetTexture(EGL_Framebuffer * this)
|
|
{
|
|
GLuint output;
|
|
egl_textureGet(this->tex, &output, NULL, NULL);
|
|
return output;
|
|
}
|