diff options
Diffstat (limited to 'i965_drv_video/shaders/render/exa_wm_yuv_rgb.g4a')
| -rw-r--r-- | i965_drv_video/shaders/render/exa_wm_yuv_rgb.g4a | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/i965_drv_video/shaders/render/exa_wm_yuv_rgb.g4a b/i965_drv_video/shaders/render/exa_wm_yuv_rgb.g4a new file mode 100644 index 0000000..c16037e --- /dev/null +++ b/i965_drv_video/shaders/render/exa_wm_yuv_rgb.g4a @@ -0,0 +1,98 @@ +/* + * Copyright © 2006 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Keith Packard <keithp@keithp.com> + * Eric Anholt <eric@anholt.net> + * + */ + +include(`exa_wm.g4i') + +define(`YCbCr_base', `src_sample_base') + +define(`Cr', `src_sample_r') +define(`Cr_01', `src_sample_r_01') +define(`Cr_23', `src_sample_r_23') + +define(`Y', `src_sample_g') +define(`Y_01', `src_sample_g_01') +define(`Y_23', `src_sample_g_23') + +define(`Cb', `src_sample_b') +define(`Cb_01', `src_sample_b_01') +define(`Cb_23', `src_sample_b_23') + +define(`Crn', `mask_sample_r') +define(`Crn_01', `mask_sample_r_01') +define(`Crn_23', `mask_sample_r_23') + +define(`Yn', `mask_sample_g') +define(`Yn_01', `mask_sample_g_01') +define(`Yn_23', `mask_sample_g_23') + +define(`Cbn', `mask_sample_b') +define(`Cbn_01', `mask_sample_b_01') +define(`Cbn_23', `mask_sample_b_23') + + /* color space conversion function: + * R = Clamp ( 1.164(Y-16/255) + 1.596(Cr-128/255), 0, 1) + * G = Clamp ( 1.164(Y-16/255) - 0.813(Cr-128/255) - 0.392(Cb-128/255), 0, 1) + * B = Clamp ( 1.164(Y-16/255) + 2.017(Cb-128/255), 0, 1) + */ + + /* Normalize Y, Cb and Cr: + * + * Yn = (Y - 16/255) * 1.164 + * Crn = Cr - 128 / 255 + * Cbn = Cb - 128 / 255 + */ +add (16) Yn<1>F Y<8,8,1>F -0.0627451F { compr align1 }; +mul (16) Yn<1>F Yn<8,8,1>F 1.164F { compr align1 }; + +add (16) Crn<1>F Cr<8,8,1>F -0.501961F { compr align1 }; + +add (16) Cbn<1>F Cb<8,8,1>F -0.501961F { compr align1 }; + + /* + * R = Y + Cr * 1.596 + */ +mov (16) acc0<1>F Yn<8,8,1>F { compr align1 }; +mac.sat(16) src_sample_r<1>F Crn<8,8,1>F 1.596F { compr align1 }; + + /* + * G = Crn * -0.813 + Cbn * -0.392 + Y + */ +mov (16) acc0<1>F Yn<8,8,1>F { compr align1 }; +mac (16) acc0<1>F Crn<8,8,1>F -0.813F { compr align1 }; +mac.sat(16) src_sample_g<1>F Cbn<8,8,1>F -0.392F { compr align1 }; + + /* + * B = Cbn * 2.017 + Y + */ +mov (16) acc0<1>F Yn<8,8,1>F { compr align1 }; +mac.sat(16) src_sample_b<1>F Cbn<8,8,1>F 2.017F { compr align1 }; + + /* + * A = 1.0 + */ +//mov (16) src_sample_a<1>F 1.0F { compr align1 }; |