diff options
Diffstat (limited to 'i965_drv_video/shaders/render/exa_wm_xy.g4a')
| -rw-r--r-- | i965_drv_video/shaders/render/exa_wm_xy.g4a | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/i965_drv_video/shaders/render/exa_wm_xy.g4a b/i965_drv_video/shaders/render/exa_wm_xy.g4a new file mode 100644 index 0000000..e99f5ac --- /dev/null +++ b/i965_drv_video/shaders/render/exa_wm_xy.g4a @@ -0,0 +1,52 @@ +/* + * 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: + * Wang Zhenyu <zhenyu.z.wang@intel.com> + * Keith Packard <keithp@keithp.com> + */ + +/* + * Register assignments: + * + * x g6/g7 + * y g8/g9 + * + * temp x g10/g11 + * temp y g12/g13 + * + * src w g14/g15 + * src u m1/m2 + * src v m3/m4 + */ + +/* Fragment to compute per-pixel XY values */ + +include(`exa_wm.g4i') + + /* Load X and Y coordinates and compute per-pixel coordinates */ +add (16) temp_x_uw<1>UW dst_x_uw 0x10101010V { align1 }; +add (16) temp_y_uw<1>UW dst_y_uw 0x11001100V { align1 }; + + /* subtract screen-space origin of vertex 0 */ +add (16) dst_x<1>F temp_x_uw<8,8,1>UW -screen_x0 { compr align1 }; +add (16) dst_y<1>F temp_y_uw<8,8,1>UW -screen_y0 { compr align1 }; |