Mirrored_Repos/LookingGlass
1
0
Fork 0
mirror of https://github.com/gnif/LookingGlass.git synced 2024-12-23 05:53:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[client] egl: cycle through multiple textures for dmabuf

Browse Source 
This avoids race conditions in GL drivers when attempting to render and
call glEGLImageTargetTexture2DOES on the same texture.

Also, when using glEGLImageTargetTexture2DOES, we do not need to allocate
storage for textures.
This commit is contained in:
Quantum 2021-08-08 06:11:01 -04:00 committed by Geoffrey McRae
parent 5e13549f74
commit 9b87f4ba5e
1 changed files with 54 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
client/renderers/EGL/texture_dmabuf.c
View File

@ -63,7 +63,7 @@ static bool egl_texDMABUFInit(EGL_Texture ** texture, EGLDisplay * display)
*texture = &this->base.base;
EGL_Texture * parent = &this->base.base;
if (!egl_texBufferInit(&parent, display))
if (!egl_texBufferStreamInit(&parent, display))
{
free(this);
*texture = NULL;
@ -93,21 +93,7 @@ static bool egl_texDMABUFSetup(EGL_Texture * texture, const EGL_TexSetup * setup
egl_texDMABUFCleanup(this);
if (!egl_texBufferSetup(&parent->base, setup))
return false;
glBindTexture(GL_TEXTURE_2D, parent->tex[0]);
glTexImage2D(GL_TEXTURE_2D,
0,
texture->format.intFormat,
texture->format.width,
texture->format.height,
0,
texture->format.format,
texture->format.dataType,
NULL);
return true;
return egl_texBufferSetup(&parent->base, setup);
}
static bool egl_texDMABUFUpdate(EGL_Texture * texture,
@ -172,8 +158,17 @@ static bool egl_texDMABUFUpdate(EGL_Texture * texture,
this->images[index].image = image;
}
glBindTexture(GL_TEXTURE_2D, parent->tex[0]);
INTERLOCKED_SECTION(parent->copyLock,
{
glBindTexture(GL_TEXTURE_2D, parent->tex[parent->bufIndex]);
g_egl_dynProcs.glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
if (parent->sync)
glDeleteSync(parent->sync);
parent->sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
});
glFlush();
return true;
}
@ -185,8 +180,48 @@ static EGL_TexStatus egl_texDMABUFProcess(EGL_Texture * texture)
static EGL_TexStatus egl_texDMABUFGet(EGL_Texture * texture, GLuint * tex)
{
TextureBuffer * parent = UPCAST(TextureBuffer, texture);
GLsync sync = 0;
*tex = parent->tex[0];
INTERLOCKED_SECTION(parent->copyLock,
{
if (parent->sync)
{
sync = parent->sync;
parent->sync = 0;
parent->rIndex = parent->bufIndex;
if (++parent->bufIndex == parent->texCount)
parent->bufIndex = 0;
}
});
if (sync)
{
switch(glClientWaitSync(sync, 0, 20000000)) // 20ms
{
case GL_ALREADY_SIGNALED:
case GL_CONDITION_SATISFIED:
glDeleteSync(sync);
break;
case GL_TIMEOUT_EXPIRED:
INTERLOCKED_SECTION(parent->copyLock,
{
if (!parent->sync)
parent->sync = sync;
else
glDeleteSync(sync);
});
return EGL_TEX_STATUS_NOTREADY;
case GL_WAIT_FAILED:
case GL_INVALID_VALUE:
glDeleteSync(sync);
DEBUG_GL_ERROR("glClientWaitSync failed");
return EGL_TEX_STATUS_ERROR;
}
}
*tex = parent->tex[parent->rIndex];
return EGL_TEX_STATUS_OK;
}