olemd/tilt-shift-camera
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Support landscape orientation

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Replace hardcoded portrait-only texture coordinate rotation with
SurfaceTexture.getTransformMatrix(), so the camera preview and capture
re-orient correctly when the device rotates. Also drive
Preview/ImageCapture targetRotation from the live display rotation, fix
the crop-to-fill aspect math to swap effective camera dimensions
between portrait and landscape, and make the slider control panel
scroll if it doesn't fit the shorter landscape height.

Bump to 1.1.6.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Ole-Morten Duesund 2026-05-07 16:31:43 +02:00
commit d321f07973
7 changed files with 127 additions and 55 deletions
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16
app/src/main/res/raw/tiltshift_vertex.glsl
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@ -1,12 +1,22 @@
// Vertex shader for tilt-shift effect
// Passes through position and calculates texture coordinates
// Vertex shader for tilt-shift effect.
//
// uTexMatrix: applied to texcoords. For the passthrough pass it carries the
// SurfaceTexture transform (sensor → display rotation, plus Y-flip). For the
// blur passes it is identity.
// uMirrorX: 1.0 to horizontally mirror texcoords (front-camera selfie view),
// 0.0 otherwise. Applied AFTER uTexMatrix.
attribute vec4 aPosition;
attribute vec2 aTexCoord;
uniform mat4 uTexMatrix;
uniform float uMirrorX;
varying vec2 vTexCoord;
void main() {
gl_Position = aPosition;
vTexCoord = aTexCoord;
vec2 tc = (uTexMatrix * vec4(aTexCoord, 0.0, 1.0)).xy;
if (uMirrorX > 0.5) tc.x = 1.0 - tc.x;
vTexCoord = tc;
}