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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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15
client/renderers/EGL/shader/compat.h
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@@ -1,16 +1,21 @@
#if __VERSION__ == 300
vec4 textureGather(sampler2D tex, vec2 uv, int comp)
{
vec4 c0 = textureOffset(tex, uv, ivec2(0,1));
vec4 c1 = textureOffset(tex, uv, ivec2(1,1));
vec4 c2 = textureOffset(tex, uv, ivec2(1,0));
vec4 c3 = textureOffset(tex, uv, ivec2(0,0));
vec2 res = vec2(textureSize(tex, 0));
ivec2 p = ivec2((uv * res) - 0.5f);
// NOTE: we can't use texelFecthOffset because sampler2D may actually be samplerExternalOES
vec4 c0 = texelFetch(tex, p+ivec2(0,1), 0);
vec4 c1 = texelFetch(tex, p+ivec2(1,1), 0);
vec4 c2 = texelFetch(tex, p+ivec2(1,0), 0);
vec4 c3 = texelFetch(tex, p+ivec2(0,0), 0);
return vec4(c0[comp], c1[comp], c2[comp],c3[comp]);
}
#elif __VERSION__ < 300
vec4 textureGather(sampler2D tex, vec2 uv, int comp)
{
vec4 c3 = texture2D(tex, uv);
vec4 c3 = texture(tex, uv);
return vec4(c3[comp], c3[comp], c3[comp],c3[comp]);
}
#endif

6
client/renderers/EGL/shader/desktop_rgb.frag
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@@ -1,4 +1,6 @@
#version 300 es
#extension GL_OES_EGL_image_external_essl3 : enable
precision highp float;
#define EGL_SCALE_AUTO 0
@@ -23,13 +25,17 @@ void main()
switch (scaleAlgo)
{
case EGL_SCALE_NEAREST:
{
vec2 ts = vec2(textureSize(sampler1, 0));
color = texelFetch(sampler1, ivec2(uv * ts), 0);
break;
}
case EGL_SCALE_LINEAR:
{
color = texture(sampler1, uv);
break;
}
}
if (cbMode > 0)

8
client/renderers/EGL/shader/downscale.frag
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@@ -1,10 +1,12 @@
#version 300 es
#extension GL_OES_EGL_image_external_essl3 : enable
precision highp float;
in vec2 fragCoord;
out vec4 fragColor;
uniform sampler2D texture;
uniform sampler2D sampler1;
uniform vec3 uConfig;
void main()
@@ -13,7 +15,7 @@ void main()
float vOffset = uConfig.y;
float hOffset = uConfig.z;
vec2 inRes = vec2(textureSize(texture, 0));
vec2 inRes = vec2(textureSize(sampler1, 0));
ivec2 point = ivec2(
(floor((fragCoord * inRes) / pixelSize) * pixelSize) +
pixelSize / 2.0f
@@ -22,5 +24,5 @@ void main()
point.x += int(pixelSize * hOffset);
point.y += int(pixelSize * vOffset);
fragColor = texelFetch(texture, point, 0);
fragColor = texelFetch(sampler1, point, 0);
}

8
client/renderers/EGL/shader/downscale_lanczos2.frag
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@@ -1,4 +1,6 @@
#version 300 es
#extension GL_OES_EGL_image_external_essl3 : enable
precision highp float;
#define PI 3.141592653589793
@@ -6,7 +8,7 @@ precision highp float;
in vec2 fragCoord;
out vec4 fragColor;
uniform sampler2D texture;
uniform sampler2D sampler1;
float sinc(float x)
{
return x == 0.0 ? 1.0 : sin(x * PI) / (x * PI);
@@ -24,7 +26,7 @@ float lanczos(vec2 v)
void main()
{
vec2 size = vec2(textureSize(texture, 0));
vec2 size = vec2(textureSize(sampler1, 0));
vec2 pos = fragCoord * size;
vec2 invSize = 1.0 / size;
vec2 uvc = floor(pos) + vec2(0.5, 0.5);
@@ -54,7 +56,7 @@ void main()
vec3 color = vec3(0.0);
for (int i = 0; i < 9; ++i)
color += texture2D(texture, uvs[i] * invSize).rgb * factors[i];
color += texture(sampler1, uvs[i] * invSize).rgb * factors[i];
fragColor = vec4(color, 1.0);
}

6
client/renderers/EGL/shader/downscale_linear.frag
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@@ -1,12 +1,14 @@
#version 300 es
#extension GL_OES_EGL_image_external_essl3 : enable
precision highp float;
in vec2 fragCoord;
out vec4 fragColor;
uniform sampler2D texture;
uniform sampler2D sampler1;
void main()
{
fragColor = texture2D(texture, fragCoord);
fragColor = texture(sampler1, fragCoord);
}

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(

21
client/renderers/EGL/shader/ffx_fsr1_easu.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 vec2 uOutRes;
uniform uvec4 uConsts[4];
@@ -18,20 +20,9 @@ uniform uvec4 uConsts[4];
#define FSR_EASU_F 1
vec4 _textureGather(sampler2D tex, vec2 uv, int comp)
{
vec2 res = vec2(textureSize(tex, 0));
ivec2 p = ivec2((uv * res) - 0.5f);
vec4 c0 = texelFetchOffset(tex, p, 0, ivec2(0,1));
vec4 c1 = texelFetchOffset(tex, p, 0, ivec2(1,1));
vec4 c2 = texelFetchOffset(tex, p, 0, ivec2(1,0));
vec4 c3 = texelFetchOffset(tex, p, 0, ivec2(0,0));
return vec4(c0[comp], c1[comp], c2[comp],c3[comp]);
}
AF4 FsrEasuRF(AF2 p){return AF4(_textureGather(texture, p, 0));}
AF4 FsrEasuGF(AF2 p){return AF4(_textureGather(texture, p, 1));}
AF4 FsrEasuBF(AF2 p){return AF4(_textureGather(texture, p, 2));}
AF4 FsrEasuRF(AF2 p){return AF4(textureGather(sampler1, p, 0));}
AF4 FsrEasuGF(AF2 p){return AF4(textureGather(sampler1, p, 1));}
AF4 FsrEasuBF(AF2 p){return AF4(textureGather(sampler1, p, 2));}
#include "ffx_fsr1.h"

6
client/renderers/EGL/shader/ffx_fsr1_rcas.frag
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@@ -6,7 +6,7 @@ precision highp float;
in vec2 fragCoord;
out vec4 fragColor;
uniform sampler2D texture;
uniform sampler2D sampler1;
uniform uvec4 uConsts;
#define A_GPU 1
@@ -15,7 +15,7 @@ uniform uvec4 uConsts;
#include "ffx_a.h"
AF4 FsrRcasLoadF(ASU2 p) { return texelFetch(texture, ASU2(p), 0); }
AF4 FsrRcasLoadF(ASU2 p) { return texelFetch(sampler1, ASU2(p), 0); }
void FsrRcasInputF(inout AF1 r, inout AF1 g, inout AF1 b) {}
#define FSR_RCAS_F 1
@@ -24,7 +24,7 @@ void FsrRcasInputF(inout AF1 r, inout AF1 g, inout AF1 b) {}
void main()
{
vec2 inRes = vec2(textureSize(texture, 0));
vec2 inRes = vec2(textureSize(sampler1, 0));
uvec2 point = uvec2(fragCoord * (inRes + 0.5f));
FsrRcasF(fragColor.r, fragColor.g, fragColor.b, point, uConsts);