diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/Makefile.sources | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_context.h | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_lower_unnormalized_offset.cpp | 78 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_shader.cpp | 1 |
4 files changed, 81 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/Makefile.sources b/src/mesa/drivers/dri/i965/Makefile.sources index baf5cd2..14b2f61 100644 --- a/src/mesa/drivers/dri/i965/Makefile.sources +++ b/src/mesa/drivers/dri/i965/Makefile.sources @@ -69,6 +69,7 @@ i965_FILES = \ brw_interpolation_map.c \ brw_lower_texture_gradients.cpp \ brw_lower_offset_array.cpp \ + brw_lower_unnormalized_offset.cpp \ brw_misc_state.c \ brw_object_purgeable.c \ brw_performance_monitor.c \ diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h index f85b989..57ed7d6 100644 --- a/src/mesa/drivers/dri/i965/brw_context.h +++ b/src/mesa/drivers/dri/i965/brw_context.h @@ -1687,6 +1687,7 @@ bool brw_do_cubemap_normalize(struct exec_list *instructions); bool brw_lower_texture_gradients(struct brw_context *brw, struct exec_list *instructions); bool brw_do_lower_offset_arrays(struct exec_list *instructions); +bool brw_do_lower_unnormalized_offset(struct exec_list *instructions); struct opcode_desc { char *name; diff --git a/src/mesa/drivers/dri/i965/brw_lower_unnormalized_offset.cpp b/src/mesa/drivers/dri/i965/brw_lower_unnormalized_offset.cpp new file mode 100644 index 0000000..0581e05 --- /dev/null +++ b/src/mesa/drivers/dri/i965/brw_lower_unnormalized_offset.cpp @@ -0,0 +1,78 @@ +/* + * Copyright © 2013 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. + */ + +/** + * \file brw_lower_unnormalized_offset.cpp + * + * IR lower pass to convert a texture offset into an adjusted coordinate, + * for use with unnormalized coordinates. At least the gather4* messages + * on Ivybridge and Haswell make a mess with nonzero offsets. + * + * \author Chris Forbes <chrisf@ijw.co.nz> + */ + +#include "glsl/glsl_types.h" +#include "glsl/ir.h" +#include "glsl/ir_builder.h" + +using namespace ir_builder; + +class brw_lower_unnormalized_offset_visitor : public ir_hierarchical_visitor { +public: + brw_lower_unnormalized_offset_visitor() + { + progress = false; + } + + ir_visitor_status visit_leave(ir_texture *ir); + + bool progress; +}; + +ir_visitor_status +brw_lower_unnormalized_offset_visitor::visit_leave(ir_texture *ir) +{ + if (ir->sampler->type->sampler_dimensionality != GLSL_SAMPLER_DIM_RECT || + !ir->offset || ir->op != ir_tg4) + return visit_continue; + + ir->coordinate = add(ir->coordinate, i2f(ir->offset)); + ir->offset = NULL; + + progress = true; + return visit_continue; +} + +extern "C" { + +bool +brw_do_lower_unnormalized_offset(exec_list *instructions) +{ + brw_lower_unnormalized_offset_visitor v; + + visit_list_elements(&v, instructions); + + return v.progress; +} + +} diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp index e9d4b2d..777ebfe 100644 --- a/src/mesa/drivers/dri/i965/brw_shader.cpp +++ b/src/mesa/drivers/dri/i965/brw_shader.cpp @@ -173,6 +173,7 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *shProg) lower_vector_insert(shader->ir, true); brw_do_cubemap_normalize(shader->ir); brw_do_lower_offset_arrays(shader->ir); + brw_do_lower_unnormalized_offset(shader->ir); lower_noise(shader->ir); lower_quadop_vector(shader->ir, false); |