1 /*
2 * Copyright (c) 2014 - 2016, The Linux Foundation. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification, are permitted
5 * provided that the following conditions are met:
6 * * Redistributions of source code must retain the above copyright notice, this list of
7 * conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above copyright notice, this list of
9 * conditions and the following disclaimer in the documentation and/or other materials provided
10 * with the distribution.
11 * * Neither the name of The Linux Foundation nor the names of its contributors may be used to
12 * endorse or promote products derived from this software without specific prior written
13 * permission.
14 *
15 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
17 * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
21 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25 #ifndef __HWC_DISPLAY_H__
26 #define __HWC_DISPLAY_H__
27
28 #include <hardware/hwcomposer.h>
29 #include <core/core_interface.h>
30 #include <qdMetaData.h>
31 #include <private/color_params.h>
32 #include <map>
33
34 namespace sdm {
35
36 class BlitEngine;
37
38 class HWCDisplay : public DisplayEventHandler {
39 public:
~HWCDisplay()40 virtual ~HWCDisplay() { }
41 virtual int Init();
42 virtual int Deinit();
43 virtual int Prepare(hwc_display_contents_1_t *content_list) = 0;
44 virtual int Commit(hwc_display_contents_1_t *content_list) = 0;
45 virtual int EventControl(int event, int enable);
46 virtual int SetPowerMode(int mode);
47
48 // Framebuffer configurations
49 virtual int GetDisplayConfigs(uint32_t *configs, size_t *num_configs);
50 virtual int GetDisplayAttributes(uint32_t config, const uint32_t *attributes, int32_t *values);
51 virtual int GetActiveConfig();
52 virtual int SetActiveConfig(int index);
53
54 virtual void SetIdleTimeoutMs(uint32_t timeout_ms);
55 virtual void SetFrameDumpConfig(uint32_t count, uint32_t bit_mask_layer_type);
56 virtual DisplayError SetMaxMixerStages(uint32_t max_mixer_stages);
57 virtual DisplayError ControlPartialUpdate(bool enable, uint32_t *pending);
58 virtual uint32_t GetLastPowerMode();
59 virtual int SetFrameBufferResolution(uint32_t x_pixels, uint32_t y_pixels);
60 virtual void GetFrameBufferResolution(uint32_t *x_pixels, uint32_t *y_pixels);
61 virtual void GetPanelResolution(uint32_t *x_pixels, uint32_t *y_pixels);
62 virtual int SetDisplayStatus(uint32_t display_status);
63 virtual int OnMinHdcpEncryptionLevelChange(uint32_t min_enc_level);
64 virtual int Perform(uint32_t operation, ...);
65 virtual int SetCursorPosition(int x, int y);
66 virtual void SetSecureDisplay(bool secure_display_active);
67
68 // Display Configurations
69 virtual int SetActiveDisplayConfig(int config);
70 virtual int GetActiveDisplayConfig(uint32_t *config);
71 virtual int GetDisplayConfigCount(uint32_t *count);
72 virtual int GetDisplayAttributesForConfig(int config, DisplayConfigVariableInfo *attributes);
73
74 int SetPanelBrightness(int level);
75 int GetPanelBrightness(int *level);
76 int ToggleScreenUpdates(bool enable);
77 int ColorSVCRequestRoute(const PPDisplayAPIPayload &in_payload,
78 PPDisplayAPIPayload *out_payload,
79 PPPendingParams *pending_action);
80 int GetVisibleDisplayRect(hwc_rect_t* rect);
81
82 protected:
83 enum DisplayStatus {
84 kDisplayStatusOffline = 0,
85 kDisplayStatusOnline,
86 kDisplayStatusPause,
87 kDisplayStatusResume,
88 };
89
90 // Dim layer flag set by SurfaceFlinger service.
91 static const uint32_t kDimLayer = 0x80000000;
92
93 // Maximum number of layers supported by display manager.
94 static const uint32_t kMaxLayerCount = 32;
95
96 // Structure to track memory allocation for layer stack (layers, rectangles) object.
97 struct LayerStackMemory {
98 static const size_t kSizeSteps = 4096; // Default memory allocation.
99 uint8_t *raw; // Pointer to byte array.
100 size_t size; // Current number of allocated bytes.
101
LayerStackMemoryLayerStackMemory102 LayerStackMemory() : raw(NULL), size(0) { }
103 };
104
105 struct LayerCache {
106 buffer_handle_t handle;
107 uint8_t plane_alpha;
108 LayerComposition composition;
109
LayerCacheLayerCache110 LayerCache() : handle(NULL), plane_alpha(0xff), composition(kCompositionGPU) { }
111 };
112
113 struct LayerStackCache {
114 LayerCache layer_cache[kMaxLayerCount];
115 uint32_t layer_count;
116 bool animating;
117 bool in_use;
118
LayerStackCacheLayerStackCache119 LayerStackCache() : layer_count(0), animating(false), in_use(false) { }
120 };
121
122 HWCDisplay(CoreInterface *core_intf, hwc_procs_t const **hwc_procs, DisplayType type, int id,
123 bool needs_blit);
124
125 // DisplayEventHandler methods
126 virtual DisplayError VSync(const DisplayEventVSync &vsync);
127 virtual DisplayError Refresh();
128
129 virtual int AllocateLayerStack(hwc_display_contents_1_t *content_list);
130 virtual int PrePrepareLayerStack(hwc_display_contents_1_t *content_list);
131 virtual int PrepareLayerStack(hwc_display_contents_1_t *content_list);
132 virtual int CommitLayerStack(hwc_display_contents_1_t *content_list);
133 virtual int PostCommitLayerStack(hwc_display_contents_1_t *content_list);
134 inline void SetRect(const hwc_rect_t &source, LayerRect *target);
135 inline void SetRect(const hwc_frect_t &source, LayerRect *target);
136 inline void SetComposition(const int32_t &source, LayerComposition *target);
137 inline void SetComposition(const LayerComposition &source, int32_t *target);
138 inline void SetBlending(const int32_t &source, LayerBlending *target);
139 int SetFormat(const int32_t &source, const int flags, LayerBufferFormat *target);
140 LayerBufferFormat GetSDMFormat(const int32_t &source, const int flags);
141 const char *GetHALPixelFormatString(int format);
142 const char *GetDisplayString();
143 void ScaleDisplayFrame(hwc_rect_t *display_frame);
144 void MarkLayersForGPUBypass(hwc_display_contents_1_t *content_list);
145 uint32_t RoundToStandardFPS(uint32_t fps);
146 virtual void ApplyScanAdjustment(hwc_rect_t *display_frame);
147 DisplayError SetCSC(ColorSpace_t source, LayerCSC *target);
148 DisplayError SetIGC(IGC_t source, LayerIGC *target);
149 DisplayError SetMetaData(const private_handle_t *pvt_handle, Layer *layer);
150 bool NeedsFrameBufferRefresh(hwc_display_contents_1_t *content_list);
151 void CacheLayerStackInfo(hwc_display_contents_1_t *content_list);
152 bool IsLayerUpdating(hwc_display_contents_1_t *content_list, int layer_index);
153 bool SingleLayerUpdating(uint32_t app_layer_count);
154 uint32_t SanitizeRefreshRate(uint32_t req_refresh_rate);
155
156 enum {
157 INPUT_LAYER_DUMP,
158 OUTPUT_LAYER_DUMP,
159 };
160
161 CoreInterface *core_intf_;
162 hwc_procs_t const **hwc_procs_;
163 DisplayType type_;
164 int id_;
165 bool needs_blit_;
166 DisplayInterface *display_intf_ = NULL;
167 LayerStackMemory layer_stack_memory_;
168 LayerStack layer_stack_;
169 LayerStackCache layer_stack_cache_;
170 bool flush_on_error_ = false;
171 bool flush_ = false;
172 uint32_t dump_frame_count_ = 0;
173 uint32_t dump_frame_index_ = 0;
174 bool dump_input_layers_ = false;
175 uint32_t last_power_mode_;
176 bool swap_interval_zero_ = false;
177 DisplayConfigVariableInfo *framebuffer_config_ = NULL;
178 bool display_paused_ = false;
179 uint32_t min_refresh_rate_ = 0;
180 uint32_t max_refresh_rate_ = 0;
181 uint32_t current_refresh_rate_ = 0;
182 bool use_metadata_refresh_rate_ = false;
183 uint32_t metadata_refresh_rate_ = 0;
184 uint32_t force_refresh_rate_ = 0;
185 bool boot_animation_completed_ = false;
186 bool shutdown_pending_ = false;
187 bool use_blit_comp_ = false;
188 bool secure_display_active_ = false;
189 bool skip_prepare_ = false;
190 bool solid_fill_enable_ = false;
191 uint32_t solid_fill_color_ = 0;
192 LayerRect display_rect_;
193 std::map<int, LayerBufferS3DFormat> s3d_format_hwc_to_sdm_;
194
195 private:
196 bool IsFrameBufferScaled();
197 void DumpInputBuffers(hwc_display_contents_1_t *content_list);
198 int PrepareLayerParams(hwc_layer_1_t *hwc_layer, Layer *layer);
199 void CommitLayerParams(hwc_layer_1_t *hwc_layer, Layer *layer);
200 void ResetLayerCacheStack();
201 BlitEngine *blit_engine_ = NULL;
202 };
203
Perform(uint32_t operation,...)204 inline int HWCDisplay::Perform(uint32_t operation, ...) {
205 return 0;
206 }
207
208 } // namespace sdm
209
210 #endif // __HWC_DISPLAY_H__
211
212