[Impeller] ensure precision matches for buggy vulkan drivers. (flutte…

…r#54372) This is another precision mismatch bug - WHICH IS NOT AN ERROR AT ALL BUT THE PowerVR Drivers ARE BUGGY BUGGY BUGGY Fixes flutter/flutter#152951
a-siva · Aug 6, 2024 · fc5d81d · fc5d81d
1 parent 206e86e
commit fc5d81d
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/impeller/entity/shaders/gradients/fast_gradient.vert b/impeller/entity/shaders/gradients/fast_gradient.vert
@@ -11,11 +11,11 @@ uniform FrameInfo {
 frame_info;
 
 in vec2 position;
-in vec4 color;
+in mediump vec4 color;
 
 // The geometry of the fast gradient draws is designed so that the
 // varying unit will perform the correct color interpolation.
-out vec4 v_color;
+out mediump vec4 v_color;
 
 void main() {
   gl_Position = frame_info.mvp * vec4(position, 0.0, 1.0);

diff --git a/impeller/tools/malioc.json b/impeller/tools/malioc.json
@@ -793,7 +793,7 @@
           "stack_spill_bytes": 0,
           "thread_occupancy": 100,
           "uniform_registers_used": 20,
-          "work_registers_used": 9
+          "work_registers_used": 7
         }
       }
     }
@@ -2175,7 +2175,7 @@
           "stack_spill_bytes": 0,
           "thread_occupancy": 100,
           "uniform_registers_used": 8,
-          "work_registers_used": 9
+          "work_registers_used": 7
         }
       }
     },