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Merge pull request opencv#6463 from ohnozzy:ocl-linearpolar-and-logpolar
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| #define CV_2PI 6.283185307179586476925286766559 | ||
| #ifdef ForwardMap | ||
| __kernel void computeAngleRadius(__global float2* cp_sp, __global float* r, float maxRadius_width, float PI2_height, unsigned width, unsigned height) | ||
| { | ||
| unsigned gid = get_global_id(0); | ||
| if (gid < height) | ||
| { | ||
| float angle = gid * PI2_height; | ||
| float2 angle_tri=(float2)(cos(angle), sin(angle)); | ||
| cp_sp[gid] = angle_tri; | ||
| } | ||
| if (gid < width) | ||
| { | ||
| r[gid] = maxRadius_width*gid; | ||
| } | ||
| } | ||
| __kernel void linearPolar(__global float* mx, __global float* my, __global float2* cp_sp, __global float* r, float cx, float cy, unsigned width, unsigned height) | ||
| { | ||
| __local float l_r[MEM_SIZE]; | ||
| __local float2 l_double[MEM_SIZE]; | ||
| unsigned rho = get_global_id(0); | ||
|
|
||
| unsigned phi = get_global_id(1); | ||
| unsigned local_0 = get_local_id(0); | ||
| unsigned local_1 = get_local_id(1); | ||
| if (local_1 == 0) | ||
| { | ||
| unsigned temp_phi=phi + local_0; | ||
| if (temp_phi < height) | ||
| { | ||
| l_double[local_0] = cp_sp[temp_phi]; | ||
| } | ||
| } | ||
| if (local_1 == 1 ) | ||
| { | ||
| if (rho < width) | ||
| { | ||
| l_r[local_0 ] = r[rho]; | ||
| } | ||
| } | ||
| barrier(CLK_LOCAL_MEM_FENCE); | ||
| if (rho<width && phi<height) | ||
| { | ||
| unsigned g_id = rho + phi*width; | ||
| float radius = l_r[local_0]; | ||
| float2 tri= l_double[local_1]; | ||
| mx[g_id] = fma(radius, tri.x , cx); | ||
| my[g_id] = fma(radius, tri.y , cy); | ||
| } | ||
| } | ||
| #elif defined (InverseMap) | ||
| __kernel void linearPolar(__global float* mx, __global float* my, float ascale, float pscale, float cx, float cy, int angle_border, unsigned width, unsigned height) | ||
| { | ||
| const int x = get_global_id(0); | ||
| const int y = get_global_id(1); | ||
| if (x < width && y < height) | ||
| { | ||
| unsigned g_id = x + y*width; | ||
| float dx = (float)x - cx; | ||
| float dy = (float)y - cy; | ||
| float mag = sqrt(dx*dx + dy*dy); | ||
| float angle = atan2(dy, dx); | ||
| if (angle < 0) | ||
| angle = angle + CV_2PI; | ||
| mx[g_id] = mag*pscale; | ||
| my[g_id] = (angle*ascale) + angle_border; | ||
| } | ||
| } | ||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| #define CV_2PI 6.283185307179586476925286766559 | ||
| #ifdef ForwardMap | ||
| __kernel void computeAngleRadius(__global float2* cp_sp, __global float* r, float m, float PI2_height, unsigned width, unsigned height) | ||
| { | ||
| unsigned gid = get_global_id(0); | ||
| if (gid < height) | ||
| { | ||
| float angle = gid * PI2_height; | ||
| float2 angle_tri = (float2)(cos(angle), sin(angle)); | ||
| cp_sp[gid] = angle_tri; | ||
| } | ||
| if (gid < width) | ||
| { | ||
| r[gid] = exp(gid/m)-1.0f; | ||
| } | ||
| } | ||
| __kernel void logPolar(__global float* mx, __global float* my, __global float2* cp_sp, __global float* r, float cx, float cy, unsigned width, unsigned height) | ||
| { | ||
| __local float l_r[MEM_SIZE]; | ||
| __local float2 l_double[MEM_SIZE]; | ||
| unsigned rho = get_global_id(0); | ||
|
|
||
| unsigned phi = get_global_id(1); | ||
| unsigned local_0 = get_local_id(0); | ||
| unsigned local_1 = get_local_id(1); | ||
| if (local_1 == 0) | ||
| { | ||
| unsigned temp_phi = phi + local_0; | ||
| if (temp_phi < height) | ||
| { | ||
| l_double[local_0] = cp_sp[temp_phi]; | ||
| } | ||
| } | ||
| if (local_1 == 1) | ||
| { | ||
| if (rho < width) | ||
| { | ||
| l_r[local_0] = r[rho]; | ||
| } | ||
| } | ||
| barrier(CLK_LOCAL_MEM_FENCE); | ||
| if (rho<width && phi<height) | ||
| { | ||
| unsigned g_id = rho + phi*width; | ||
| float radius = l_r[local_0]; | ||
| float2 tri = l_double[local_1]; | ||
| mx[g_id] = fma(radius, tri.x , cx); | ||
| my[g_id] = fma(radius, tri.y, cy); | ||
| } | ||
| } | ||
| #elif defined (InverseMap) | ||
| __kernel void logPolar(__global float* mx, __global float* my, float ascale, float m, float cx, float cy, int angle_border, unsigned width, unsigned height) | ||
| { | ||
| const int x = get_global_id(0); | ||
| const int y = get_global_id(1); | ||
| if (x < width && y < height) | ||
| { | ||
| unsigned g_id = x + y*width; | ||
| float dx = (float)x - cx; | ||
| float dy = (float)y - cy; | ||
| float mag = log(sqrt(dx*dx + dy*dy)+1.0f); | ||
| float angle = atan2(dy, dx); | ||
| if (angle < 0) | ||
| angle = angle + CV_2PI; | ||
| mx[g_id] = mag*m; | ||
| my[g_id] = (angle*ascale) + angle_border; | ||
| } | ||
| } | ||
| #endif |