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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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19
client/renderers/EGL/texture_buffer.c
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@@ -292,6 +292,19 @@ EGL_TexStatus egl_texBufferStreamGet(EGL_Texture * texture, GLuint * tex)
return EGL_TEX_STATUS_OK;
}
EGL_TexStatus egl_texBufferBind(EGL_Texture * texture)
{
GLuint tex;
EGL_TexStatus status;
if ((status = texture->ops.get(texture, &tex)) != EGL_TEX_STATUS_OK)
return status;
glBindTexture(GL_TEXTURE_2D, tex);
return EGL_TEX_STATUS_OK;
}
const EGL_TextureOps EGL_TextureBuffer =
{
.init = egl_texBufferInit,
@@ -299,7 +312,8 @@ const EGL_TextureOps EGL_TextureBuffer =
.setup = egl_texBufferSetup,
.update = egl_texBufferUpdate,
.process = egl_texBufferProcess,
.get = egl_texBufferGet
.get = egl_texBufferGet,
.bind = egl_texBufferBind
};
const EGL_TextureOps EGL_TextureBufferStream =
@@ -309,5 +323,6 @@ const EGL_TextureOps EGL_TextureBufferStream =
.setup = egl_texBufferStreamSetup,
.update = egl_texBufferStreamUpdate,
.process = egl_texBufferStreamProcess,
.get = egl_texBufferStreamGet
.get = egl_texBufferStreamGet,
.bind = egl_texBufferBind
};