platform_bootable_recovery/minui/graphics_adf.h
Tao Bao 92bdb5a389 minui: Move GRSurface into a class.
This CL adds GRSurface::Create() and dtor for managing the allocated
memory in GRSurface class. It also adds GRSurface::data() that hides the
underlying implementation, with both of const and non-const overloads.
This allows `const GRSurface&` to be more useful - previously it only
ensured a const member variable of `data`, instead of a read-only buffer
it points to.

It also marks the parameters in gr_texticon() and gr_blit() as const, as
they're incoming source that shouldn't be altered. It corrects the type
of gr_draw, which is the sink to be painted on (an earlier attempt was
made in [1], but didn't get the full picture correctly).

[1] https://android-review.googlesource.com/c/platform/bootable/recovery/+/704757/

Test: mmma -j bootable/recovery
Test: recovery_unit_test on marlin
Test: Run graphics test on marlin (fbdev).
Test: Run graphics test on blueline (drm).
Change-Id: I7904df084cd6c08fa04a9da97d01b4b1a6e3a20c
2018-10-22 18:18:02 -07:00

65 lines
1.5 KiB
C++

/*
* Copyright (C) 2017 The Android Open Source Project
*
* 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.
*/
#pragma once
#include <stdint.h>
#include <adf/adf.h>
#include "graphics.h"
#include "minui/minui.h"
class GRSurfaceAdf : public GRSurface {
public:
uint8_t* data() override {
return mmapped_buffer_;
}
private:
friend class MinuiBackendAdf;
int fence_fd;
int fd;
__u32 offset;
__u32 pitch;
uint8_t* mmapped_buffer_{ nullptr };
};
class MinuiBackendAdf : public MinuiBackend {
public:
GRSurface* Init() override;
GRSurface* Flip() override;
void Blank(bool) override;
~MinuiBackendAdf() override;
MinuiBackendAdf();
private:
int SurfaceInit(const drm_mode_modeinfo* mode, GRSurfaceAdf* surf);
int InterfaceInit();
int DeviceInit(adf_device* dev);
void SurfaceDestroy(GRSurfaceAdf* surf);
void Sync(GRSurfaceAdf* surf);
int intf_fd;
adf_id_t eng_id;
__u32 format;
adf_device dev;
unsigned int current_surface;
unsigned int n_surfaces;
GRSurfaceAdf surfaces[2];
};