From c03272a460183423077b6696acddcce03e33ced4 Mon Sep 17 00:00:00 2001
From: Glenn Watson <github@intuitionlibrary.com>
Date: Tue, 23 Aug 2016 13:04:19 +1000
Subject: [PATCH] Remove some unused shaders.

---
 resources/shaders/border.fs.glsl              | 41 -------------------
 resources/shaders/border.vs.glsl              | 12 ------
 resources/shaders/ps_image_transform.fs.glsl  |  8 ----
 resources/shaders/ps_image_transform.glsl     |  8 ----
 resources/shaders/ps_image_transform.vs.glsl  | 29 -------------
 .../shaders/ps_rectangle_transform.fs.glsl    |  8 ----
 resources/shaders/ps_rectangle_transform.glsl |  8 ----
 .../shaders/ps_rectangle_transform.vs.glsl    | 24 -----------
 8 files changed, 138 deletions(-)
 delete mode 100644 resources/shaders/border.fs.glsl
 delete mode 100644 resources/shaders/border.vs.glsl
 delete mode 100644 resources/shaders/ps_image_transform.fs.glsl
 delete mode 100644 resources/shaders/ps_image_transform.glsl
 delete mode 100644 resources/shaders/ps_image_transform.vs.glsl
 delete mode 100644 resources/shaders/ps_rectangle_transform.fs.glsl
 delete mode 100644 resources/shaders/ps_rectangle_transform.glsl
 delete mode 100644 resources/shaders/ps_rectangle_transform.vs.glsl

diff --git a/resources/shaders/border.fs.glsl b/resources/shaders/border.fs.glsl
deleted file mode 100644
index 32d1930aa5aa..000000000000
--- a/resources/shaders/border.fs.glsl
+++ /dev/null
@@ -1,41 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/*
-    Ellipse equation:
-
-    (x-h)^2     (y-k)^2
-    -------  +  -------   <=  1
-      rx^2        ry^2
-
- */
-
-float Value(vec2 position) {
-    float outer_rx = vBorderRadii.x;
-    float outer_ry = vBorderRadii.y;
-    float outer_dx = position.x * position.x / (outer_rx * outer_rx);
-    float outer_dy = position.y * position.y / (outer_ry * outer_ry);
-    if (outer_dx + outer_dy > 1.0)
-        return 0.0;
-
-    float inner_rx = vBorderRadii.z;
-    float inner_ry = vBorderRadii.w;
-    if (inner_rx == 0.0 || inner_ry == 0.0)
-        return 1.0;
-
-    float inner_dx = position.x * position.x / (inner_rx * inner_rx);
-    float inner_dy = position.y * position.y / (inner_ry * inner_ry);
-    return inner_dx + inner_dy >= 1.0 ? 1.0 : 0.0;
-}
-
-void main(void)
-{
-    vec2 position = vPosition - vBorderPosition.xy;
-    vec4 pixelBounds = vec4(floor(position.x), floor(position.y),
-                            ceil(position.x), ceil(position.y));
-    float value = (Value(pixelBounds.xy) + Value(pixelBounds.zy) +
-                   Value(pixelBounds.xw) + Value(pixelBounds.zw)) / 4.0;
-    SetFragColor(vec4(vColor.rgb, mix(1.0 - vColor.a, vColor.a, value)));
-}
-
diff --git a/resources/shaders/border.vs.glsl b/resources/shaders/border.vs.glsl
deleted file mode 100644
index cbd9cdcd0c1c..000000000000
--- a/resources/shaders/border.vs.glsl
+++ /dev/null
@@ -1,12 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-void main(void)
-{
-    vColor = aColorRectTL;
-    vPosition = aPosition.xy;
-    vBorderPosition = aBorderPosition;
-    vBorderRadii = aBorderRadii;
-    gl_Position = uTransform * vec4(aPosition, 1.0);
-}
diff --git a/resources/shaders/ps_image_transform.fs.glsl b/resources/shaders/ps_image_transform.fs.glsl
deleted file mode 100644
index b12b266328bb..000000000000
--- a/resources/shaders/ps_image_transform.fs.glsl
+++ /dev/null
@@ -1,8 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-void main(void) {
-    init_transform_fs(vLocalPos, vLocalRect);
-    oFragColor = texture(sDiffuse, vUv / vLocalPos.z);
-}
diff --git a/resources/shaders/ps_image_transform.glsl b/resources/shaders/ps_image_transform.glsl
deleted file mode 100644
index d4aed4a51614..000000000000
--- a/resources/shaders/ps_image_transform.glsl
+++ /dev/null
@@ -1,8 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-varying vec2 vUv;
-
-varying vec3 vLocalPos;
-flat varying vec4 vLocalRect;
diff --git a/resources/shaders/ps_image_transform.vs.glsl b/resources/shaders/ps_image_transform.vs.glsl
deleted file mode 100644
index bb79aea1becf..000000000000
--- a/resources/shaders/ps_image_transform.vs.glsl
+++ /dev/null
@@ -1,29 +0,0 @@
-#line 1
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-struct Image {
-    PrimitiveInfo info;
-    vec4 st_rect;
-    vec4 stretch_size;  // Size of the actual image.
-};
-
-layout(std140) uniform Items {
-    Image images[WR_MAX_PRIM_ITEMS];
-};
-
-void main(void) {
-    Image image = images[gl_InstanceID];
-
-    TransformVertexInfo vi = write_transform_vertex(image.info);
-
-    vLocalRect = image.info.local_rect;
-    vLocalPos = vi.local_pos;
-
-    vec2 f = (vi.local_pos.xy - image.info.local_rect.xy) / image.info.local_rect.zw;
-
-    vUv = mix(image.st_rect.xy,
-              image.st_rect.zw,
-              f);
-}
diff --git a/resources/shaders/ps_rectangle_transform.fs.glsl b/resources/shaders/ps_rectangle_transform.fs.glsl
deleted file mode 100644
index 7552a01e6d35..000000000000
--- a/resources/shaders/ps_rectangle_transform.fs.glsl
+++ /dev/null
@@ -1,8 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-void main(void) {
-    init_transform_fs(vLocalPos, vLocalRect);
-    oFragColor = vColor;
-}
diff --git a/resources/shaders/ps_rectangle_transform.glsl b/resources/shaders/ps_rectangle_transform.glsl
deleted file mode 100644
index e8990e9627a0..000000000000
--- a/resources/shaders/ps_rectangle_transform.glsl
+++ /dev/null
@@ -1,8 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-varying vec4 vColor;
-
-varying vec3 vLocalPos;
-flat varying vec4 vLocalRect;
diff --git a/resources/shaders/ps_rectangle_transform.vs.glsl b/resources/shaders/ps_rectangle_transform.vs.glsl
deleted file mode 100644
index b21f85158c58..000000000000
--- a/resources/shaders/ps_rectangle_transform.vs.glsl
+++ /dev/null
@@ -1,24 +0,0 @@
-#line 1
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-struct Rectangle {
-    PrimitiveInfo info;
-    vec4 color;
-};
-
-layout(std140) uniform Items {
-    Rectangle rects[WR_MAX_PRIM_ITEMS];
-};
-
-void main(void) {
-    Rectangle rect = rects[gl_InstanceID];
-
-    TransformVertexInfo vi = write_transform_vertex(rect.info);
-
-    vLocalRect = rect.info.local_rect;
-    vLocalPos = vi.local_pos;
-
-    vColor = rect.color;
-}