| // 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/common/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; |
| } |