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Add DMA-BUF export compatibility with EGL 1.4

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This commit is contained in:
Cameron Gutman
2021-01-31 16:24:31 -06:00
parent 149575e0c4
commit 80137848dc
4 changed files with 195 additions and 41 deletions
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92
app/streaming/video/ffmpeg-renderers/vaapi.cpp
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@@ -5,9 +5,6 @@
#include <streaming/streamutils.h>
#include <SDL_syswm.h>
#ifdef HAVE_EGL
#include <SDL_egl.h>
#endif
#include <unistd.h>
#include <fcntl.h>
@@ -20,6 +17,11 @@ VAAPIRenderer::VAAPIRenderer()
m_PrimeDescriptor.num_layers = 0;
m_PrimeDescriptor.num_objects = 0;
m_EGLExtDmaBuf = false;
m_eglCreateImage = nullptr;
m_eglCreateImageKHR = nullptr;
m_eglDestroyImage = nullptr;
m_eglDestroyImageKHR = nullptr;
#endif
}
@@ -490,6 +492,20 @@ VAAPIRenderer::initializeEGL(EGLDisplay,
return false;
}
m_EGLExtDmaBuf = ext.isSupported("EGL_EXT_image_dma_buf_import_modifiers");
// NB: eglCreateImage() and eglCreateImageKHR() have slightly different definitions
m_eglCreateImage = (typeof(m_eglCreateImage))eglGetProcAddress("eglCreateImage");
m_eglCreateImageKHR = (typeof(m_eglCreateImageKHR))eglGetProcAddress("eglCreateImageKHR");
m_eglDestroyImage = (typeof(m_eglDestroyImage))eglGetProcAddress("eglDestroyImage");
m_eglDestroyImageKHR = (typeof(m_eglDestroyImageKHR))eglGetProcAddress("eglDestroyImageKHR");
if (!(m_eglCreateImage && m_eglDestroyImage) &&
!(m_eglCreateImageKHR && m_eglDestroyImageKHR)) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Missing eglCreateImage()/eglDestroyImage() in EGL driver");
return false;
}
return true;
}
@@ -525,33 +541,54 @@ VAAPIRenderer::exportEGLImages(AVFrame *frame, EGLDisplay dpy,
const auto &layer = m_PrimeDescriptor.layers[i];
const auto &object = m_PrimeDescriptor.objects[layer.object_index[0]];
EGLAttrib attribs[17] = {
EGL_LINUX_DRM_FOURCC_EXT, (EGLint)layer.drm_format,
const int EGL_ATTRIB_COUNT = 17;
EGLAttrib attribs[EGL_ATTRIB_COUNT] = {
EGL_LINUX_DRM_FOURCC_EXT, layer.drm_format,
EGL_WIDTH, i == 0 ? frame->width : frame->width / 2,
EGL_HEIGHT, i == 0 ? frame->height : frame->height / 2,
EGL_DMA_BUF_PLANE0_FD_EXT, object.fd,
EGL_DMA_BUF_PLANE0_OFFSET_EXT, (EGLint)layer.offset[0],
EGL_DMA_BUF_PLANE0_PITCH_EXT, (EGLint)layer.pitch[0],
EGL_NONE,
EGL_DMA_BUF_PLANE0_OFFSET_EXT, layer.offset[0],
EGL_DMA_BUF_PLANE0_PITCH_EXT, layer.pitch[0],
EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT, (EGLint)object.drm_format_modifier,
EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, (EGLint)(object.drm_format_modifier >> 32),
EGL_NONE
};
if (m_EGLExtDmaBuf) {
const EGLAttrib extra[] = {
EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT,
(EGLint)object.drm_format_modifier,
EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT,
(EGLint)(object.drm_format_modifier >> 32),
EGL_NONE,
};
memcpy((void *)(&attribs[12]), (void *)extra, sizeof (extra));
// Cut off the attribute array before the modifiers if they aren't supported
if (!m_EGLExtDmaBuf) {
SDL_assert(attribs[12] == EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT);
SDL_assert(attribs[14] == EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT);
SDL_assert(attribs[16] == EGL_NONE);
attribs[12] = EGL_NONE;
}
images[i] = eglCreateImage(dpy, EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT,
nullptr, attribs);
if (!images[i]) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"eglCreateImage() Failed: %d", eglGetError());
goto create_image_fail;
if (m_eglCreateImage) {
images[i] = m_eglCreateImage(dpy, EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT,
nullptr, attribs);
if (!images[i]) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"eglCreateImage() Failed: %d", eglGetError());
goto create_image_fail;
}
}
else {
// Cast the EGLAttrib array elements to EGLint for the KHR extension
EGLint intAttribs[EGL_ATTRIB_COUNT];
for (int i = 0; i < EGL_ATTRIB_COUNT; i++) {
intAttribs[i] = (EGLint)attribs[i];
}
images[i] = m_eglCreateImageKHR(dpy, EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT,
nullptr, intAttribs);
if (!images[i]) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"eglCreateImageKHR() Failed: %d", eglGetError());
goto create_image_fail;
}
}
++count;
}
return count;
@@ -566,7 +603,12 @@ sync_fail:
void
VAAPIRenderer::freeEGLImages(EGLDisplay dpy, EGLImage images[EGL_MAX_PLANES]) {
for (size_t i = 0; i < m_PrimeDescriptor.num_layers; ++i) {
eglDestroyImage(dpy, images[i]);
if (m_eglDestroyImage) {
m_eglDestroyImage(dpy, images[i]);
}
else {
m_eglDestroyImageKHR(dpy, images[i]);
}
}
for (size_t i = 0; i < m_PrimeDescriptor.num_objects; ++i) {
close(m_PrimeDescriptor.objects[i].fd);