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[client] egl: switch to using GL_TEXTURE_EXTERNAL_OES for DMABUF

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According to Erik @ NVidia the open source NVidia driver will not
create a EGLImage from a DMABUF if the target is not
GL_TEXTURE_EXTERNAL_OES. This change set converts the dmabuf texture
from GL_TEXTURE_2D to GL_TEXTURE_EXTERNAL_OES and at runtime performs a
global search & replace on fragment shaders as needed to remain
compatible, replacing `sampler2D` with `samplerExternalOES`.

Ref: https://github.com/NVIDIA/open-gpu-kernel-modules/discussions/243#discussioncomment-3283415
This commit is contained in:
Geoffrey McRae
2023-03-09 09:20:01 +11:00
parent bbc9204bfe
commit b4b4a37b2b
27 changed files with 372 additions and 180 deletions
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11
client/renderers/EGL/texture.c
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@@ -25,6 +25,7 @@
#include "shader.h"
#include "common/framebuffer.h"
#include "common/debug.h"
#include "common/array.h"
#include <EGL/egl.h>
#include <EGL/eglext.h>
@@ -76,6 +77,7 @@ bool egl_textureInit(EGL_Texture ** texture_, EGLDisplay * display,
glSamplerParameteri(this->sampler, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glSamplerParameteri(this->sampler, GL_TEXTURE_WRAP_S , GL_CLAMP_TO_EDGE);
glSamplerParameteri(this->sampler, GL_TEXTURE_WRAP_T , GL_CLAMP_TO_EDGE);
return true;
}
@@ -203,14 +205,7 @@ enum EGL_TexStatus egl_textureProcess(EGL_Texture * this)
enum EGL_TexStatus egl_textureBind(EGL_Texture * this)
{
GLuint tex;
EGL_TexStatus status;
if ((status = this->ops.get(this, &tex)) != EGL_TEX_STATUS_OK)
return status;
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, tex);
glBindSampler(0, this->sampler);
return EGL_TEX_STATUS_OK;
return this->ops.bind(this);
}