Hi All,
I'm running some code that's attempting to bitblt some memory to a canvas
surface via SDL. The code below shows how i'm rendering the surface then
copying it up to the canvas with SDL:
if (SDL_MUSTLOCK(m_private->surface)) {
if (SDL_LockSurface(m_private->surface) < 0)
return;
}
IntRect clipRect(0, 0, m_private->screen->w, m_private->screen->h);
Frame* coreFrame = m_private->mainFrame->coreFrame();
if (coreFrame->contentRenderer() && coreFrame->view()) {
coreFrame->view()->updateLayoutAndStyleIfNeededRecursive();
cairo_surface_t *cairosurf = cairo_image_surface_create_for_data (
(unsigned char*)m_private->surface->pixels, CAIRO_FORMAT_ARGB32,
m_private->surface->w, m_private->surface->h, m_private->surface->pitch);
GraphicsContext context(cairo_create(cairosurf));
if (m_private->transparent)
context.clearRect(clipRect);
coreFrame->view()->paintContents(&context, clipRect);
}
if (SDL_MUSTLOCK(m_private->surface))
SDL_UnlockSurface(m_private->surface);
int result = SDL_BlitSurface(m_private->surface, 0, m_private->screen, 0);
ASSERT_UNUSED(result, !result);
SDL_UpdateRect(m_private->screen, 0, 0, m_private->screen->w,
m_private->screen->h);
However, when I run it it seems to be fine until it gets to a mystery
"_SDL_UpperBlit" function that fails to run due to a javascript error that
drawImage doesn't exist (I assume its because its trying to run on a canvas
object that doesn't exist).
Any advice? Id Imagine the sdl_upperblit call was inlined somehow (as I
don't use it).
WebKit Trace:
../deps/WebKit/Source/WebCore/platform/graphics/GraphicsContext.cpp[106]
WebCore::GraphicsContext::~GraphicsContext()
example.html:1243<file:///Tint/webkit.js/Debug/example.html>
WebKit Trace: ../deps/cairo/src/cairo.c[317] void cairo_destroy(cairo_t *)
example.html:1243 <file:///Tint/webkit.js/Debug/example.html>
exception thrown: TypeError: Object #<Object> has no method
'drawImage',TypeError: Object #<Object> has no method 'drawImage' at
_SDL_UpperBlit
(file:///Tint/webkit.js/Debug/test.js:9460:19<file:///Tint/webkit.js/Debug/test.js>)
at __ZN6WebKit7WebView4drawEv
(file:///Tint/webkit.js/Debug/test.js:14821:9<file:///Tint/webkit.js/Debug/test.js>)
at __ZN6WebKit7WebView10invalidateEN7WebCore7IntRectEi (
file:///Tint/webkit.js/Debug/test.js:14942:2<file:///Tint/webkit.js/Debug/test.js>)
at
Array.__ZN7WebCore14ChromeClientJS29invalidateContentsAndRootViewERKNS_7IntRectEb
(file:///Tint/webkit.js/Debug/test.js:3023513:2<file:///Tint/webkit.js/Debug/test.js>)
at Array.__ZN7WebCore6Chrome29invalidateContentsAndRootViewERKNS_7IntRectEb
(file:///Tint/webkit.js/Debug/test.js:2307292:32<file:///Tint/webkit.js/Debug/test.js>)
at __ZN7WebCore10ScrollView23repaintContentRectangleERKNS_7IntRectEb (
file:///Tint/webkit.js/Debug/test.js:2653822:33<file:///Tint/webkit.js/Debug/test.js>)
at __ZN7WebCore9FrameView18doDeferredRepaintsEv (
file:///Tint/webkit.js/Debug/test.js:2366297:6<file:///Tint/webkit.js/Debug/test.js>)
at __ZN7WebCore9FrameView19endDeferredRepaintsEv (
file:///Tint/webkit.js/Debug/test.js:2360631:2<file:///Tint/webkit.js/Debug/test.js>)
at __ZN7WebCore9FrameView6layoutEb (
file:///Tint/webkit.js/Debug/test.js:2359226:4<file:///Tint/webkit.js/Debug/test.js>)
at __ZN7WebCore9FrameView37updateLayoutAndStyleIfNeededRecursiveEv (
file:///Tint/webkit.js/Debug/test.js:2370578:3<file:///Tint/webkit.js/Debug/test.js>
) example.html:1243 <file:///Tint/webkit.js/Debug/example.html>
Uncaught TypeError: Object #<Object> has no method 'drawImage'
test.js:3109549 <file:///Tint/webkit.js/Debug/test.js>
WebKit Trace: ../src/WebCoreSupport/SharedTimer.cpp[17] void
WebCore::sharedTimerRun(void *)
example.html:1243<file:///Tint/webkit.js/Debug/example.html>
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