Support IOSurface frames

Support getting video as IOSurface frames on OS X.

With Chromium 45 we only get IOSurface frame when using
non-default command-line flags.

Change-Id: Ibf5226db53fa6fb51112bec9061d701918798ddd
Reviewed-by: Michael Brüning <michael.bruning@theqtcompany.com>

1 files changed, 23 insertions, 2 deletions

diff --git a/src/core/delegated_frame_node.cpp b/src/core/delegated_frame_node.cpp
index aebdfd027..1b6a80f82 100644
--- a/src/core/delegated_frame_node.cpp
+++ b/src/core/delegated_frame_node.cpp
@@ -57,6 +57,7 @@
 #include "cc/quads/checkerboard_draw_quad.h"
 #include "cc/quads/debug_border_draw_quad.h"
 #include "cc/quads/draw_quad.h"
+#include "cc/quads/io_surface_draw_quad.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/stream_video_draw_quad.h"
@@ -80,6 +81,10 @@
 #define GL_TIMEOUT_IGNORED                0xFFFFFFFFFFFFFFFFull
 #endif
 
+#ifndef GL_TEXTURE_RECTANGLE
+#define GL_TEXTURE_RECTANGLE              0x84F5
+#endif
+
 namespace QtWebEngineCore {
 
 class MailboxTexture : public QSGTexture, protected QOpenGLFunctions {
@@ -655,13 +660,29 @@ void DelegatedFrameNode::commit(ChromiumCompositorData *chromiumCompositorData,
                 MailboxTexture *texture = static_cast<MailboxTexture *>(initAndHoldTexture(resource, quad->ShouldDrawWithBlending()));
                 texture->setTarget(GL_TEXTURE_EXTERNAL_OES); // since this is not default TEXTURE_2D type
 
-                StreamVideoNode *svideoNode = new StreamVideoNode(texture);
+                StreamVideoNode *svideoNode = new StreamVideoNode(texture, false, ExternalTarget);
                 svideoNode->setRect(toQt(squad->rect));
                 svideoNode->setTextureMatrix(toQt(squad->matrix.matrix()));
                 currentLayerChain->appendChildNode(svideoNode);
                 break;
 #endif
-            } default:
+            }
+            case cc::DrawQuad::IO_SURFACE_CONTENT: {
+                const cc::IOSurfaceDrawQuad *ioquad = cc::IOSurfaceDrawQuad::MaterialCast(quad);
+                ResourceHolder *resource = findAndHoldResource(ioquad->io_surface_resource_id(), resourceCandidates);
+                MailboxTexture *texture = static_cast<MailboxTexture *>(initAndHoldTexture(resource, quad->ShouldDrawWithBlending()));
+                texture->setTarget(GL_TEXTURE_RECTANGLE);
+
+                bool flip = ioquad->orientation != cc::IOSurfaceDrawQuad::FLIPPED;
+                StreamVideoNode *svideoNode = new StreamVideoNode(texture, flip, RectangleTarget);
+                QMatrix4x4 matrix;
+                matrix.scale(ioquad->io_surface_size.width(), ioquad->io_surface_size.height());
+                svideoNode->setRect(toQt(ioquad->rect));
+                svideoNode->setTextureMatrix(matrix);
+                currentLayerChain->appendChildNode(svideoNode);
+                break;
+            }
+            default:
                 qWarning("Unimplemented quad material: %d", quad->material);
             }
         }