diff options
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/Makefile.sources | 2 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_surface_builder.cpp | 98 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_surface_builder.h | 30 |
3 files changed, 130 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/Makefile.sources b/src/mesa/drivers/dri/i965/Makefile.sources index 17cdabf7f11..cc3ecaf7a8b 100644 --- a/src/mesa/drivers/dri/i965/Makefile.sources +++ b/src/mesa/drivers/dri/i965/Makefile.sources @@ -130,6 +130,8 @@ i965_FILES = \ brw_vec4_nir.cpp \ brw_vec4_gs_nir.cpp \ brw_vec4_reg_allocate.cpp \ + brw_vec4_surface_builder.cpp \ + brw_vec4_surface_builder.h \ brw_vec4_visitor.cpp \ brw_vec4_vp.cpp \ brw_vec4_vs_visitor.cpp \ diff --git a/src/mesa/drivers/dri/i965/brw_vec4_surface_builder.cpp b/src/mesa/drivers/dri/i965/brw_vec4_surface_builder.cpp new file mode 100644 index 00000000000..b77cd74ebaa --- /dev/null +++ b/src/mesa/drivers/dri/i965/brw_vec4_surface_builder.cpp @@ -0,0 +1,98 @@ +/* + * Copyright © 2013-2015 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. + */ + +#include "brw_vec4_surface_builder.h" + +using namespace brw; + +namespace { + namespace array_utils { + /** + * Copy one every \p src_stride logical components of the argument into + * one every \p dst_stride logical components of the result. + */ + src_reg + emit_stride(const vec4_builder &bld, const src_reg &src, unsigned size, + unsigned dst_stride, unsigned src_stride) + { + if (src_stride == 1 && dst_stride == 1) { + return src; + } else { + const dst_reg dst = bld.vgrf(src.type, + DIV_ROUND_UP(size * dst_stride, 4)); + + for (unsigned i = 0; i < size; ++i) + bld.MOV(writemask(offset(dst, i * dst_stride / 4), + 1 << (i * dst_stride % 4)), + swizzle(offset(src, i * src_stride / 4), + brw_swizzle_for_mask(1 << (i * src_stride % 4)))); + + return src_reg(dst); + } + } + + /** + * Convert a VEC4 into an array of registers with the layout expected by + * the recipient shared unit. If \p has_simd4x2 is true the argument is + * left unmodified in SIMD4x2 form, otherwise it will be rearranged into + * a SIMD8 vector. + */ + src_reg + emit_insert(const vec4_builder &bld, const src_reg &src, + unsigned n, bool has_simd4x2) + { + if (src.file == BAD_FILE || n == 0) { + return src_reg(); + + } else { + /* Pad unused components with zeroes. */ + const unsigned mask = (1 << n) - 1; + const dst_reg tmp = bld.vgrf(src.type); + + bld.MOV(writemask(tmp, mask), src); + if (n < 4) + bld.MOV(writemask(tmp, ~mask), 0); + + return emit_stride(bld, src_reg(tmp), n, has_simd4x2 ? 1 : 4, 1); + } + } + + /** + * Convert an array of registers back into a VEC4 according to the + * layout expected from some shared unit. If \p has_simd4x2 is true the + * argument is left unmodified in SIMD4x2 form, otherwise it will be + * rearranged from SIMD8 form. + */ + src_reg + emit_extract(const vec4_builder &bld, const src_reg src, + unsigned n, bool has_simd4x2) + { + if (src.file == BAD_FILE || n == 0) { + return src_reg(); + + } else { + return emit_stride(bld, src, n, 1, has_simd4x2 ? 1 : 4); + } + } + } +} diff --git a/src/mesa/drivers/dri/i965/brw_vec4_surface_builder.h b/src/mesa/drivers/dri/i965/brw_vec4_surface_builder.h new file mode 100644 index 00000000000..8a1a22ee841 --- /dev/null +++ b/src/mesa/drivers/dri/i965/brw_vec4_surface_builder.h @@ -0,0 +1,30 @@ +/* -*- c++ -*- */ +/* + * Copyright © 2013-2015 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. + */ + +#ifndef BRW_VEC4_SURFACE_BUILDER_H +#define BRW_VEC4_SURFACE_BUILDER_H + +#include "brw_vec4_builder.h" + +#endif |