blob: a1c86814a92efc9a5e45c8fbf6884d77703114bc [file] [log] [blame]
// Copyright 2016 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <directfb.h>
#include "starboard/blitter.h"
#include "starboard/log.h"
#include "starboard/shared/directfb/blitter_internal.h"
SbBlitterSurface SbBlitterCreateRenderTargetSurface(
SbBlitterDevice device,
int width,
int height,
SbBlitterSurfaceFormat surface_format) {
if (!SbBlitterIsDeviceValid(device)) {
SB_DLOG(ERROR) << __FUNCTION__ << ": Invalid device.";
return kSbBlitterInvalidSurface;
}
if (!SbBlitterIsSurfaceFormatSupportedByRenderTargetSurface(device,
surface_format)) {
SB_DLOG(ERROR) << __FUNCTION__ << ": Unsupported pixel format.";
return kSbBlitterInvalidSurface;
}
if (width <= 0 || height <= 0) {
SB_DLOG(ERROR) << __FUNCTION__ << ": Width and height must both be "
<< "greater than 0.";
return kSbBlitterInvalidSurface;
}
starboard::ScopedLock lock(device->mutex);
// Create a surface with device-owned memory.
DFBSurfaceDescription dsc;
dsc.width = width;
dsc.height = height;
dsc.flags = static_cast<DFBSurfaceDescriptionFlags>(
DSDESC_HEIGHT | DSDESC_WIDTH | DSDESC_PIXELFORMAT | DSDESC_CAPS);
dsc.caps = static_cast<DFBSurfaceCapabilities>(DSCAPS_VIDEOONLY |
DSCAPS_STATIC_ALLOC);
dsc.pixelformat = DSPF_ARGB;
IDirectFB* dfb = device->dfb;
IDirectFBSurface* directfb_surface;
if (dfb->CreateSurface(dfb, &dsc, &directfb_surface) != DFB_OK) {
SB_DLOG(ERROR) << __FUNCTION__ << ": Error calling CreateSurface().";
return kSbBlitterInvalidSurface;
}
SbBlitterSurfacePrivate* surface = new SbBlitterSurfacePrivate();
// Setup the internal DirectFB surface and have the render target also point
// to it.
surface->device = device;
surface->info.width = width;
surface->info.height = height;
surface->info.format = surface_format;
surface->surface = directfb_surface;
surface->render_target.surface = directfb_surface;
return surface;
}