diff options
Diffstat (limited to 'src/opengl/qglpixmapfilter.cpp')
| -rw-r--r-- | src/opengl/qglpixmapfilter.cpp | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/src/opengl/qglpixmapfilter.cpp b/src/opengl/qglpixmapfilter.cpp index eb3298b..275bbed 100644 --- a/src/opengl/qglpixmapfilter.cpp +++ b/src/opengl/qglpixmapfilter.cpp @@ -192,15 +192,15 @@ bool QGLPixmapColorizeFilter::processGL(QPainter *, const QPointF &pos, const QP // generates convolution filter code for arbitrary sized kernel QByteArray QGLPixmapConvolutionFilter::generateConvolutionShader() const { QByteArray code; - code.append("uniform sampler2D texture;\n"); - code.append("uniform vec2 inv_texture_size;\n"); - code.append("uniform float matrix["); + code.append("uniform sampler2D texture;\n" + "uniform vec2 inv_texture_size;\n" + "uniform float matrix["); code.append(QByteArray::number(m_kernelWidth * m_kernelHeight)); - code.append("];\n"); - code.append("vec2 offset["); + code.append("];\n" + "vec2 offset["); code.append(QByteArray::number(m_kernelWidth*m_kernelHeight)); - code.append("];\n"); - code.append("void main(void) {\n"); + code.append("];\n" + "void main(void) {\n"); for(int y = 0; y < m_kernelHeight; y++) { for(int x = 0; x < m_kernelWidth; x++) { @@ -210,22 +210,21 @@ QByteArray QGLPixmapConvolutionFilter::generateConvolutionShader() const { code.append(QByteArray::number(x-(int)(m_kernelWidth/2))); code.append(".0, inv_texture_size.y * "); code.append(QByteArray::number((int)(m_kernelHeight/2)-y)); - code.append(".0)"); - code.append(";\n"); + code.append(".0);\n"); } } - code.append(" int i = 0;\n"); - code.append(" vec2 coords = gl_TexCoord[0].st;\n"); - code.append(" vec4 sum = vec4(0.0);\n"); - code.append(" for (i = 0; i < "); + code.append(" int i = 0;\n" + " vec2 coords = gl_TexCoord[0].st;\n" + " vec4 sum = vec4(0.0);\n" + " for (i = 0; i < "); code.append(QByteArray::number(m_kernelWidth * m_kernelHeight)); - code.append("; i++) {\n"); - code.append(" vec4 tmp = texture2D(texture,coords+offset[i]);\n"); - code.append(" sum += matrix[i] * tmp;\n"); - code.append(" }\n"); - code.append(" gl_FragColor = sum;\n"); - code.append("}"); + code.append("; i++) {\n" + " vec4 tmp = texture2D(texture,coords+offset[i]);\n" + " sum += matrix[i] * tmp;\n" + " }\n" + " gl_FragColor = sum;\n" + "}"); return code; } |