[gegl] Kernels for Y'CbCrA color format
- From: Ãyvind KolÃs <ok src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gegl] Kernels for Y'CbCrA color format
- Date: Tue, 20 Mar 2012 13:51:59 +0000 (UTC)
commit 6f84d1d03963cd32b2a7e3dbe96338eb17ed26bc
Author: Victor Oliveira <victormatheus gmail com>
Date: Tue Jan 17 12:52:02 2012 -0200
Kernels for Y'CbCrA color format
gegl/opencl/gegl-cl-color-kernel.h | 42 ++++++++++++++++++++++++++++++++++++
gegl/opencl/gegl-cl-color.c | 11 ++++++++-
2 files changed, 52 insertions(+), 1 deletions(-)
---
diff --git a/gegl/opencl/gegl-cl-color-kernel.h b/gegl/opencl/gegl-cl-color-kernel.h
index 149c370..9d517e0 100644
--- a/gegl/opencl/gegl-cl-color-kernel.h
+++ b/gegl/opencl/gegl-cl-color-kernel.h
@@ -125,4 +125,46 @@ static const char* kernel_color_source =
" float4 in_v = read_imagef(in, sampler, gid); \n"
" float4 out_v; \n"
" write_imagef(out, gid, out_v); \n"
+"} \n"
+" \n"
+"/* RGBA float -> Y'CbCrA float */ \n"
+" \n"
+"__kernel void rgba_to_ycbcra (__read_only image2d_t in, \n"
+" __write_only image2d_t out) \n"
+"{ \n"
+" int2 gid = (int2)(get_global_id(0), get_global_id(1)); \n"
+" float4 in_v = read_imagef(in, sampler, gid); \n"
+" float4 out_v; \n"
+" \n"
+" float4 rgb = (float4)(linear_to_gamma_2_2(in_v.x), \n"
+" linear_to_gamma_2_2(in_v.y), \n"
+" linear_to_gamma_2_2(in_v.z), \n"
+" 0.0f); \n"
+" \n"
+" out_v = (float4)( 0.299f * rgb.x + 0.587f * rgb.y + 0.114f * rgb.z, \n"
+" -0.168736f * rgb.x - 0.331264f * rgb.y + 0.5f * rgb.z, \n"
+" 0.5f * rgb.x - 0.418688f * rgb.y - 0.081312f * rgb.z, \n"
+" in_v.w); \n"
+" write_imagef(out, gid, out_v); \n"
+"} \n"
+" \n"
+"/* Y'CbCrA float -> RGBA float */ \n"
+" \n"
+"__kernel void ycbcra_to_rgba (__read_only image2d_t in, \n"
+" __write_only image2d_t out) \n"
+"{ \n"
+" int2 gid = (int2)(get_global_id(0), get_global_id(1)); \n"
+" float4 in_v = read_imagef(in, sampler, gid); \n"
+" float4 out_v; \n"
+" \n"
+" float4 rgb = (float4)(1.0f * in_v.x + 0.0f * in_v.y + 1.40200f * in_v.z, \n"
+" 1.0f * in_v.x - 0.344136f * in_v.y - 0.71414136f * in_v.z, \n"
+" 1.0f * in_v.x + 1.772f * in_v.y + 0.0f * in_v.z, \n"
+" 0.0f); \n"
+" \n"
+" out_v = (float4)(linear_to_gamma_2_2(rgb.x), \n"
+" linear_to_gamma_2_2(rgb.y), \n"
+" linear_to_gamma_2_2(rgb.z), \n"
+" in_v.w); \n"
+" write_imagef(out, gid, out_v); \n"
"} \n";
diff --git a/gegl/opencl/gegl-cl-color.c b/gegl/opencl/gegl-cl-color.c
index 4dd281f..38b52c8 100644
--- a/gegl/opencl/gegl-cl-color.c
+++ b/gegl/opencl/gegl-cl-color.c
@@ -6,7 +6,7 @@
static gegl_cl_run_data *kernels_color = NULL;
-#define CL_FORMAT_N 8
+#define CL_FORMAT_N 10
static const Babl *format[CL_FORMAT_N];
@@ -21,6 +21,8 @@ gegl_cl_color_compile_kernels(void)
"rgba_gamma_2_2_premultiplied2rgba", /* 5 */
"rgbaf_to_rgbau8", /* 6 */
"rgbau8_to_rgbaf", /* 7 */
+ "rgba_to_ycbcra", /* 8 */
+ "ycbcra_to_rgba", /* 9 */
NULL};
format[0] = babl_format ("RaGaBaA float"),
@@ -31,6 +33,8 @@ gegl_cl_color_compile_kernels(void)
format[5] = babl_format ("RGBA float"),
format[6] = babl_format ("RGBA u8"),
format[7] = babl_format ("RGBA float"),
+ format[8] = babl_format ("Y'CbCrA float"),
+ format[9] = babl_format ("RGBA float"),
kernels_color = gegl_cl_compile_and_build (kernel_color_source, kernel_name);
}
@@ -126,6 +130,7 @@ gegl_cl_color_conv (cl_mem *in_tex, cl_mem *aux_tex, const size_t size[2],
else if (out_format == babl_format ("R'G'B'A float")) CONV_1(2)
else if (out_format == babl_format ("R'aG'aB'aA float")) CONV_1(4)
else if (out_format == babl_format ("RGBA u8")) CONV_1(6)
+ else if (out_format == babl_format ("Y'CbCrA float")) CONV_1(8)
}
else if (in_format == babl_format ("RaGaBaA float"))
{
@@ -133,6 +138,7 @@ gegl_cl_color_conv (cl_mem *in_tex, cl_mem *aux_tex, const size_t size[2],
else if (out_format == babl_format ("R'G'B'A float")) CONV_2(1, 2)
else if (out_format == babl_format ("R'aG'aB'aA float")) CONV_2(1, 4)
else if (out_format == babl_format ("RGBA u8")) CONV_2(1, 6)
+ else if (out_format == babl_format ("Y'CbCrA float")) CONV_2(1, 8)
}
else if (in_format == babl_format ("R'G'B'A float"))
{
@@ -140,6 +146,7 @@ gegl_cl_color_conv (cl_mem *in_tex, cl_mem *aux_tex, const size_t size[2],
else if (out_format == babl_format ("RaGaBaA float")) CONV_2(3, 0)
else if (out_format == babl_format ("R'aG'aB'aA float")) CONV_2(3, 4)
else if (out_format == babl_format ("RGBA u8")) CONV_2(3, 6)
+ else if (out_format == babl_format ("Y'CbCrA float")) CONV_2(3, 8)
}
else if (in_format == babl_format ("R'aG'aB'aA float"))
{
@@ -147,6 +154,7 @@ gegl_cl_color_conv (cl_mem *in_tex, cl_mem *aux_tex, const size_t size[2],
else if (out_format == babl_format ("RaGaBaA float")) CONV_2(5, 0)
else if (out_format == babl_format ("R'G'B'A float")) CONV_2(5, 2)
else if (out_format == babl_format ("RGBA u8")) CONV_2(5, 6)
+ else if (out_format == babl_format ("Y'CbCrA float")) CONV_2(5, 8)
}
else if (in_format == babl_format ("RGBA u8"))
{
@@ -154,6 +162,7 @@ gegl_cl_color_conv (cl_mem *in_tex, cl_mem *aux_tex, const size_t size[2],
else if (out_format == babl_format ("RaGaBaA float")) CONV_2(7, 0)
else if (out_format == babl_format ("R'G'B'A float")) CONV_2(7, 2)
else if (out_format == babl_format ("RGBA u8")) CONV_2(7, 6)
+ else if (out_format == babl_format ("Y'CbCrA float")) CONV_2(7, 8)
}
/* XXX: maybe there are precision problems if a 8-bit texture is used as intermediate */
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