diff options
Diffstat (limited to 'src/qcam/assets')
| -rw-r--r-- | src/qcam/assets/shader/bayer_8.frag | 9 | ||||
| -rw-r--r-- | src/qcam/assets/shader/bayer_8.vert | 26 | ||||
| -rw-r--r-- | src/qcam/assets/shader/shaders.qrc | 2 |
3 files changed, 23 insertions, 14 deletions
diff --git a/src/qcam/assets/shader/bayer_8.frag b/src/qcam/assets/shader/bayer_8.frag index a7d65e1d..4ece44ab 100644 --- a/src/qcam/assets/shader/bayer_8.frag +++ b/src/qcam/assets/shader/bayer_8.frag @@ -9,20 +9,23 @@ Morgan McGuire This paper appears in issue Volume 13, Number 4. --------------------------------------------------------- Copyright (c) 2008, Morgan McGuire. All rights reserved. + +Modified by Linaro Ltd to integrate it into libcamera. +Copyright (C) 2021, Linaro */ //Pixel Shader /** Monochrome RGBA or GL_LUMINANCE Bayer encoded texture.*/ -uniform sampler2D source; +uniform sampler2D tex_y; varying vec4 center; varying vec4 yCoord; varying vec4 xCoord; void main(void) { - #define fetch(x, y) texture2D(source, vec2(x, y)).r + #define fetch(x, y) texture2D(tex_y, vec2(x, y)).r - float C = texture2D(source, center.xy).r; // ( 0, 0) + float C = texture2D(tex_y, center.xy).r; // ( 0, 0) const vec4 kC = vec4( 4.0, 6.0, 5.0, 5.0) / 8.0; // Determine which of four types of pixels we are on. diff --git a/src/qcam/assets/shader/bayer_8.vert b/src/qcam/assets/shader/bayer_8.vert index 347c15f7..3695a5e9 100644 --- a/src/qcam/assets/shader/bayer_8.vert +++ b/src/qcam/assets/shader/bayer_8.vert @@ -9,17 +9,22 @@ Morgan McGuire This paper appears in issue Volume 13, Number 4. --------------------------------------------------------- Copyright (c) 2008, Morgan McGuire. All rights reserved. + +Modified by Linaro Ltd to integrate it into libcamera. +Copyright (C) 2021, Linaro */ //Vertex Shader +attribute vec4 vertexIn; +attribute vec2 textureIn; -/** (w,h,1/w,1/h) */ -uniform vec4 sourceSize; +uniform vec2 tex_size; /* The texture size in pixels */ +uniform vec2 tex_step; /** Pixel position of the first red pixel in the */ /** Bayer pattern. [{0,1}, {0, 1}]*/ -uniform vec2 firstRed; +uniform vec2 tex_bayer_first_red; /** .xy = Pixel being sampled in the fragment shader on the range [0, 1] .zw = ...on the range [0, sourceSize], offset by firstRed */ @@ -34,14 +39,13 @@ varying vec4 xCoord; varying vec4 yCoord; void main(void) { - center.xy = gl_MultiTexCoord0.xy; - center.zw = gl_MultiTexCoord0.xy * sourceSize.xy + firstRed; + center.xy = textureIn; + center.zw = textureIn * tex_size + tex_bayer_first_red; - vec2 invSize = sourceSize.zw; - xCoord = center.x + vec4(-2.0 * invSize.x, - -invSize.x, invSize.x, 2.0 * invSize.x); - yCoord = center.y + vec4(-2.0 * invSize.y, - -invSize.y, invSize.y, 2.0 * invSize.y); + xCoord = center.x + vec4(-2.0 * tex_step.x, + -tex_step.x, tex_step.x, 2.0 * tex_step.x); + yCoord = center.y + vec4(-2.0 * tex_step.y, + -tex_step.y, tex_step.y, 2.0 * tex_step.y); - gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; + gl_Position = vertexIn; } diff --git a/src/qcam/assets/shader/shaders.qrc b/src/qcam/assets/shader/shaders.qrc index d76d65c5..96c709f9 100644 --- a/src/qcam/assets/shader/shaders.qrc +++ b/src/qcam/assets/shader/shaders.qrc @@ -6,6 +6,8 @@ <file>YUV_3_planes.frag</file> <file>YUV_packed.frag</file> <file>bayer_1x_packed.frag</file> + <file>bayer_8.frag</file> + <file>bayer_8.vert</file> <file>identity.vert</file> </qresource> </RCC> |