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[Impeller] fix Adreno precision issue in gaussian downsample. (flutter/engine#57212)

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Fixes observed sampling problems on the adreno series where slightly different mediump/lowp behavior, resulting in the downsample shader showing "chunky" rendeering.
This commit is contained in:
Jonah Williams 2024-12-16 09:27:53 -08:00 committed by GitHub
parent bb38935b9a
commit 0bc174d87a
2 changed files with 32 additions and 34 deletions
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2
engine/src/flutter/impeller/entity/shaders/downsample.glsl
View File

@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
precision mediump float;
precision highp float;
#include <impeller/constants.glsl>
#include <impeller/types.glsl>

64
engine/src/flutter/impeller/tools/malioc.json
View File

@ -5274,7 +5274,7 @@
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@ -5303,9 +5303,9 @@
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@ -5313,14 +5313,12 @@
],
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@ -5329,7 +5327,7 @@
},
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}
}
@ -5369,7 +5367,7 @@
"arithmetic"
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@ -5394,7 +5392,7 @@
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@ -5423,9 +5421,9 @@
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@ -5436,9 +5434,9 @@
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@ -5447,7 +5445,7 @@
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@ -5487,14 +5485,14 @@
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@ -8316,7 +8314,7 @@
"uses_late_zs_update": false,
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@ -8345,9 +8343,9 @@
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@ -8358,9 +8356,9 @@
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@ -8388,7 +8386,7 @@
"uses_late_zs_update": false,
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@ -8417,9 +8415,9 @@
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@ -8430,9 +8428,9 @@
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