diff options
Diffstat (limited to 'src/gallium/auxiliary/vl')
| -rw-r--r-- | src/gallium/auxiliary/vl/vl_csc.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/src/gallium/auxiliary/vl/vl_csc.c b/src/gallium/auxiliary/vl/vl_csc.c index d70ab14d323..e4395d0624d 100644 --- a/src/gallium/auxiliary/vl/vl_csc.c +++ b/src/gallium/auxiliary/vl/vl_csc.c @@ -158,6 +158,7 @@ void vl_csc_get_matrix(enum VL_CSC_COLOR_STANDARD cs, float s = p->saturation; float b = p->brightness; float h = p->hue; + float x, y; const vl_csc_matrix *cstd; @@ -167,6 +168,10 @@ void vl_csc_get_matrix(enum VL_CSC_COLOR_STANDARD cs, b -= c * 16.0f / 255.0f; /* Adjust for the y bias */ } + /* Parameter substitutions */ + x = c * s * cosf(h); + y = c * s * sinf(h); + assert(matrix); switch (cs) { @@ -187,23 +192,23 @@ void vl_csc_get_matrix(enum VL_CSC_COLOR_STANDARD cs, } (*matrix)[0][0] = c * (*cstd)[0][0]; - (*matrix)[0][1] = c * (*cstd)[0][1] * s * cosf(h) - c * (*cstd)[0][2] * s * sinf(h); - (*matrix)[0][2] = c * (*cstd)[0][2] * s * cosf(h) + c * (*cstd)[0][1] * s * sinf(h); + (*matrix)[0][1] = (*cstd)[0][1] * x - (*cstd)[0][2] * y; + (*matrix)[0][2] = (*cstd)[0][2] * x + (*cstd)[0][1] * y; (*matrix)[0][3] = (*cstd)[0][3] + (*cstd)[0][0] * b + - (*cstd)[0][1] * (c * cbbias * s * cosf(h) + c * crbias * s * sinf(h)) + - (*cstd)[0][2] * (c * crbias * s * cosf(h) - c * cbbias * s * sinf(h)); + (*cstd)[0][1] * (x * cbbias + y * crbias) + + (*cstd)[0][2] * (x * crbias - y * cbbias); (*matrix)[1][0] = c * (*cstd)[1][0]; - (*matrix)[1][1] = c * (*cstd)[1][1] * s * cosf(h) - c * (*cstd)[1][2] * s * sinf(h); - (*matrix)[1][2] = c * (*cstd)[1][2] * s * cosf(h) + c * (*cstd)[1][1] * s * sinf(h); + (*matrix)[1][1] = (*cstd)[1][1] * x - (*cstd)[1][2] * y; + (*matrix)[1][2] = (*cstd)[1][2] * x + (*cstd)[1][1] * y; (*matrix)[1][3] = (*cstd)[1][3] + (*cstd)[1][0] * b + - (*cstd)[1][1] * (c * cbbias * s * cosf(h) + c * crbias * s * sinf(h)) + - (*cstd)[1][2] * (c * crbias * s * cosf(h) - c * cbbias * s * sinf(h)); + (*cstd)[1][1] * (x * cbbias + y * crbias) + + (*cstd)[1][2] * (x * crbias - y * cbbias); (*matrix)[2][0] = c * (*cstd)[2][0]; - (*matrix)[2][1] = c * (*cstd)[2][1] * s * cosf(h) - c * (*cstd)[2][2] * s * sinf(h); - (*matrix)[2][2] = c * (*cstd)[2][2] * s * cosf(h) + c * (*cstd)[2][1] * s * sinf(h); + (*matrix)[2][1] = (*cstd)[2][1] * x - (*cstd)[2][2] * y; + (*matrix)[2][2] = (*cstd)[2][2] * x + (*cstd)[2][1] * y; (*matrix)[2][3] = (*cstd)[2][3] + (*cstd)[2][0] * b + - (*cstd)[2][1] * (c * cbbias * s * cosf(h) + c * crbias * s * sinf(h)) + - (*cstd)[2][2] * (c * crbias * s * cosf(h) - c * cbbias * s * sinf(h)); + (*cstd)[2][1] * (x * cbbias + y * crbias) + + (*cstd)[2][2] * (x * crbias - y * cbbias); } |