From b5b4d6b2bdd1809b2e8af0b7ddec32a8d4f88e9a Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Mon, 22 Jul 2024 04:58:41 +0200
Subject: Fix portal capture on intel, support multiple planes in one egl image
 (might fix capture on intel iris)

---
 src/utils.c | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)

(limited to 'src/utils.c')

diff --git a/src/utils.c b/src/utils.c
index d768f58..28c66e0 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -8,6 +8,7 @@
 #include <stdlib.h>
 #include <sys/stat.h>
 #include <errno.h>
+#include <assert.h>
 
 #include <xf86drmMode.h>
 #include <xf86drm.h>
@@ -518,3 +519,95 @@ int create_directory_recursive(char *path) {
     }
     return 0;
 }
+
+void setup_dma_buf_attrs(intptr_t *img_attr, uint32_t format, uint32_t width, uint32_t height, const int *fds, const uint32_t *offsets, const uint32_t *pitches, const uint64_t *modifiers, int num_planes, bool use_modifier) {
+    size_t img_attr_index = 0;
+
+    img_attr[img_attr_index++] = EGL_LINUX_DRM_FOURCC_EXT;
+    img_attr[img_attr_index++] = format;
+
+    img_attr[img_attr_index++] = EGL_WIDTH;
+    img_attr[img_attr_index++] = width;
+
+    img_attr[img_attr_index++] = EGL_HEIGHT;
+    img_attr[img_attr_index++] = height;
+
+    if(num_planes >= 1) {
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE0_FD_EXT;
+        img_attr[img_attr_index++] = fds[0];
+
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
+        img_attr[img_attr_index++] = offsets[0];
+
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
+        img_attr[img_attr_index++] = pitches[0];
+
+        if(use_modifier) {
+            img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT;
+            img_attr[img_attr_index++] = modifiers[0] & 0xFFFFFFFFULL;
+
+            img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT;
+            img_attr[img_attr_index++] = modifiers[0] >> 32ULL;
+        }
+    }
+
+    if(num_planes >= 2) {
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE1_FD_EXT;
+        img_attr[img_attr_index++] = fds[1];
+
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE1_OFFSET_EXT;
+        img_attr[img_attr_index++] = offsets[1];
+
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE1_PITCH_EXT;
+        img_attr[img_attr_index++] = pitches[1];
+
+        if(use_modifier) {
+            img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT;
+            img_attr[img_attr_index++] = modifiers[1] & 0xFFFFFFFFULL;
+
+            img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT;
+            img_attr[img_attr_index++] = modifiers[1] >> 32ULL;
+        }
+    }
+
+    if(num_planes >= 3) {
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE2_FD_EXT;
+        img_attr[img_attr_index++] = fds[2];
+
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE2_OFFSET_EXT;
+        img_attr[img_attr_index++] = offsets[2];
+
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE2_PITCH_EXT;
+        img_attr[img_attr_index++] = pitches[2];
+
+        if(use_modifier) {
+            img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT;
+            img_attr[img_attr_index++] = modifiers[2] & 0xFFFFFFFFULL;
+
+            img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT;
+            img_attr[img_attr_index++] = modifiers[2] >> 32ULL;
+        }
+    }
+
+    if(num_planes >= 4) {
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE3_FD_EXT;
+        img_attr[img_attr_index++] = fds[3];
+
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE3_OFFSET_EXT;
+        img_attr[img_attr_index++] = offsets[3];
+
+        img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE3_PITCH_EXT;
+        img_attr[img_attr_index++] = pitches[3];
+
+        if(use_modifier) {
+            img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT;
+            img_attr[img_attr_index++] = modifiers[3] & 0xFFFFFFFFULL;
+
+            img_attr[img_attr_index++] = EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT;
+            img_attr[img_attr_index++] = modifiers[3] >> 32ULL;
+        }
+    }
+
+    img_attr[img_attr_index++] = EGL_NONE;
+    assert(img_attr_index <= 44);
+}
-- 
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