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video: Set content type to zero when not using game mode (#614)

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This field should just be ignored, however in earlier versions of the CEA-861
spec this field was reserved and supposed to be initialized to 0.
This commit is contained in:
Martin Donlon
2022-05-23 05:18:04 -07:00
committed by GitHub
parent 1ec42b777b
commit 7472a45662
1 changed files with 7 additions and 7 deletions
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14
video.cpp
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@@ -1028,16 +1028,16 @@ static void hdmi_config()
0x56, 0b00001000, // [5:4] Picture Aspect Ratio
// [3:0] Active Portion Aspect Ratio b1000 = Same as Picture Aspect Ratio
0x57, (uint8_t)((cfg.hdmi_game_mode ? 0x80 : 0x00) // [7] IT Content. 0 - No. 1 - Yes (type set in register 0x59).
// [6:4] Color space (ignored for RGB)
| ((ypbpr || cfg.hdmi_limited) ? 0b0100 : 0b1000)), // [3:2] RGB Quantization range
// [1:0] Non-Uniform Scaled: 00 - None. 01 - Horiz. 10 - Vert. 11 - Both.
0x57, (uint8_t)((cfg.hdmi_game_mode ? 0x80 : 0x00) // [7] IT Content. 0 - No. 1 - Yes (type set in register 0x59).
// [6:4] Color space (ignored for RGB)
| ((ypbpr || cfg.hdmi_limited) ? 0b0100 : 0b1000)), // [3:2] RGB Quantization range
// [1:0] Non-Uniform Scaled: 00 - None. 01 - Horiz. 10 - Vert. 11 - Both.
0x3C, vic_mode, // VIC
0x59, (uint8_t)(((ypbpr || cfg.hdmi_limited) ? 0x00 : 0x40) // [7:6] [YQ1 YQ0] YCC Quantization Range: b00 = Limited Range, b01 = Full Range
| 0x30), // [5:4] IT Content Type b11 = Game
// [3:0] Pixel Repetition Fields b0000 = No Repetition
0x59, (uint8_t)(((ypbpr || cfg.hdmi_limited) ? 0x00 : 0x40) // [7:6] [YQ1 YQ0] YCC Quantization Range: b00 = Limited Range, b01 = Full Range
| (cfg.hdmi_game_mode ? 0x30 : 0x00)), // [5:4] IT Content Type b11 = Game, b00 = Graphics/None
// [3:0] Pixel Repetition Fields b0000 = No Repetition
0x73, 0x01,