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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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8
client/renderers/EGL/shader/ffx_cas.frag
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@@ -1,4 +1,6 @@
#version 300 es
#extension GL_OES_EGL_image_external_essl3 : enable
precision highp float;
#include "compat.h"
@@ -6,7 +8,7 @@ precision highp float;
in vec2 fragCoord;
out vec4 fragColor;
uniform sampler2D texture;
uniform sampler2D sampler1;
uniform uvec4 uConsts[2];
#define A_GPU 1
@@ -16,7 +18,7 @@ uniform uvec4 uConsts[2];
vec3 imageLoad(ivec2 point)
{
return texelFetch(texture, point, 0).rgb;
return texelFetch(sampler1, point, 0).rgb;
}
AF3 CasLoad(ASU2 p)
@@ -30,7 +32,7 @@ void CasInput(inout AF1 r,inout AF1 g,inout AF1 b) {}
void main()
{
vec2 res = vec2(textureSize(texture, 0));
vec2 res = vec2(textureSize(sampler1, 0));
uvec2 point = uvec2(fragCoord * res);
CasFilter(