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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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17
client/renderers/EGL/postprocess.c
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@@ -49,7 +49,7 @@ static const EGL_FilterOps * EGL_Filters[] =
struct EGL_PostProcess
{
Vector filters;
GLuint output;
EGL_Texture * output;
unsigned int outputX, outputY;
_Atomic(bool) modified;
@@ -606,7 +606,7 @@ bool egl_postProcessConfigModified(EGL_PostProcess * this)
bool egl_postProcessRun(EGL_PostProcess * this, EGL_Texture * tex,
EGL_DesktopRects * rects, int desktopWidth, int desktopHeight,
unsigned int targetX, unsigned int targetY)
unsigned int targetX, unsigned int targetY, bool useDMA)
{
if (targetX == 0 && targetY == 0)
DEBUG_FATAL("targetX || targetY == 0");
@@ -614,8 +614,9 @@ bool egl_postProcessRun(EGL_PostProcess * this, EGL_Texture * tex,
EGL_Filter * lastFilter = NULL;
unsigned int sizeX, sizeY;
GLuint texture;
if (egl_textureGet(tex, &texture, &sizeX, &sizeY) != EGL_TEX_STATUS_OK)
//TODO: clean this up
GLuint _unused;
if (egl_textureGet(tex, &_unused, &sizeX, &sizeY) != EGL_TEX_STATUS_OK)
return false;
if (atomic_exchange(&this->modified, false))
@@ -636,11 +637,12 @@ bool egl_postProcessRun(EGL_PostProcess * this, EGL_Texture * tex,
};
EGL_Filter * filter;
EGL_Texture * texture = tex;
vector_forEach(filter, &this->filters)
{
egl_filterSetOutputResHint(filter, targetX, targetY);
if (!egl_filterSetup(filter, tex->format.pixFmt, sizeX, sizeY) ||
if (!egl_filterSetup(filter, tex->format.pixFmt, sizeX, sizeY, useDMA) ||
!egl_filterPrepare(filter))
continue;
@@ -651,6 +653,9 @@ bool egl_postProcessRun(EGL_PostProcess * this, EGL_Texture * tex,
egl_filterRelease(lastFilter);
lastFilter = filter;
// the first filter to run will convert to a normal texture
useDMA = false;
}
this->output = texture;
@@ -659,7 +664,7 @@ bool egl_postProcessRun(EGL_PostProcess * this, EGL_Texture * tex,
return true;
}
GLuint egl_postProcessGetOutput(EGL_PostProcess * this,
EGL_Texture * egl_postProcessGetOutput(EGL_PostProcess * this,
unsigned int * outputX, unsigned int * outputY)
{
*outputX = this->outputX;