82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/* Copyright (c) 2013-2015 Jeffrey Pfau
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef VIDEO_BACKEND_H
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#define VIDEO_BACKEND_H
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#include <mgba-util/common.h>
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CXX_GUARD_START
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#include <mgba-util/geometry.h>
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#include <mgba/core/log.h>
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#ifdef _WIN32
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#include <windows.h>
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typedef HWND WHandle;
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#else
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typedef void* WHandle;
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#endif
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mLOG_DECLARE_CATEGORY(VIDEO);
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enum VideoLayer {
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VIDEO_LAYER_BACKGROUND = 0,
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VIDEO_LAYER_BEZEL,
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VIDEO_LAYER_IMAGE,
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VIDEO_LAYER_OVERLAY0,
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VIDEO_LAYER_OVERLAY1,
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VIDEO_LAYER_OVERLAY2,
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VIDEO_LAYER_OVERLAY3,
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VIDEO_LAYER_OVERLAY4,
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VIDEO_LAYER_OVERLAY5,
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VIDEO_LAYER_OVERLAY6,
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VIDEO_LAYER_OVERLAY7,
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VIDEO_LAYER_OVERLAY8,
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VIDEO_LAYER_OVERLAY9,
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VIDEO_LAYER_MAX
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};
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#define VIDEO_LAYER_OVERLAY_COUNT VIDEO_LAYER_MAX - VIDEO_LAYER_OVERLAY0
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struct VideoBackend {
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void (*init)(struct VideoBackend*, WHandle handle);
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void (*deinit)(struct VideoBackend*);
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void (*setLayerDimensions)(struct VideoBackend*, enum VideoLayer, const struct mRectangle*);
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void (*layerDimensions)(const struct VideoBackend*, enum VideoLayer, struct mRectangle*);
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void (*swap)(struct VideoBackend*);
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void (*clear)(struct VideoBackend*);
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void (*contextResized)(struct VideoBackend*, unsigned w, unsigned h, unsigned maxW, unsigned maxH);
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void (*setImageSize)(struct VideoBackend*, enum VideoLayer, int w, int h);
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void (*imageSize)(struct VideoBackend*, enum VideoLayer, int* w, int* h);
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void (*setImage)(struct VideoBackend*, enum VideoLayer, const void* frame);
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void (*drawFrame)(struct VideoBackend*);
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void* user;
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bool filter;
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bool lockAspectRatio;
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bool lockIntegerScaling;
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bool interframeBlending;
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enum VideoLayer cropToLayer;
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};
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struct VideoShader {
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const char* name;
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const char* author;
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const char* description;
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void* preprocessShader;
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void* passes;
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size_t nPasses;
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};
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void VideoBackendGetFrame(const struct VideoBackend*, struct mRectangle* frame);
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void VideoBackendGetFrameSize(const struct VideoBackend*, unsigned* width, unsigned* height);
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void VideoBackendRecenter(struct VideoBackend* v, unsigned scale);
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CXX_GUARD_END
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#endif
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