From: Maxence Le Dore Date: Sun, 23 Dec 2012 23:57:37 +0000 (+0100) Subject: glsl: add texture gather changes X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=18002d9eda56801794cf471b30cfb9cd79fd167b;p=mesa.git glsl: add texture gather changes V2 [Chris Forbes]: - Add new pattern, fixup parameter reading. V3: Rebase onto new builtins machinery Reviewed-by: Kenneth Graunke Reviewed-by: Ian Romanick --- diff --git a/src/glsl/builtin_functions.cpp b/src/glsl/builtin_functions.cpp index 72054e0fe93..df735ef31c9 100644 --- a/src/glsl/builtin_functions.cpp +++ b/src/glsl/builtin_functions.cpp @@ -262,6 +262,13 @@ texture_query_lod(const _mesa_glsl_parse_state *state) state->ARB_texture_query_lod_enable; } +static bool +texture_gather(const _mesa_glsl_parse_state *state) +{ + return state->is_version(400, 0) || + state->ARB_texture_gather_enable; +} + /* Desktop GL or OES_standard_derivatives + fragment shader only */ static bool fs_oes_derivatives(const _mesa_glsl_parse_state *state) @@ -1816,6 +1823,34 @@ builtin_builder::create_builtins() _texture(ir_txd, shader_texture_lod_and_rect, glsl_type::vec4_type, glsl_type::sampler2DRectShadow_type, glsl_type::vec4_type, TEX_PROJECT), NULL); + add_function("textureGather", + _texture(ir_tg4, texture_gather, glsl_type::vec4_type, glsl_type::sampler2D_type, glsl_type::vec2_type), + _texture(ir_tg4, texture_gather, glsl_type::ivec4_type, glsl_type::isampler2D_type, glsl_type::vec2_type), + _texture(ir_tg4, texture_gather, glsl_type::uvec4_type, glsl_type::usampler2D_type, glsl_type::vec2_type), + + _texture(ir_tg4, texture_gather, glsl_type::vec4_type, glsl_type::sampler2DArray_type, glsl_type::vec3_type), + _texture(ir_tg4, texture_gather, glsl_type::ivec4_type, glsl_type::isampler2DArray_type, glsl_type::vec3_type), + _texture(ir_tg4, texture_gather, glsl_type::uvec4_type, glsl_type::usampler2DArray_type, glsl_type::vec3_type), + + _texture(ir_tg4, texture_gather, glsl_type::vec4_type, glsl_type::samplerCube_type, glsl_type::vec3_type), + _texture(ir_tg4, texture_gather, glsl_type::ivec4_type, glsl_type::isamplerCube_type, glsl_type::vec3_type), + _texture(ir_tg4, texture_gather, glsl_type::uvec4_type, glsl_type::usamplerCube_type, glsl_type::vec3_type), + + _texture(ir_tg4, texture_gather, glsl_type::vec4_type, glsl_type::samplerCubeArray_type, glsl_type::vec4_type), + _texture(ir_tg4, texture_gather, glsl_type::ivec4_type, glsl_type::isamplerCubeArray_type, glsl_type::vec4_type), + _texture(ir_tg4, texture_gather, glsl_type::uvec4_type, glsl_type::usamplerCubeArray_type, glsl_type::vec4_type), + NULL); + + add_function("textureGatherOffset", + _texture(ir_tg4, texture_gather, glsl_type::vec4_type, glsl_type::sampler2D_type, glsl_type::vec2_type, TEX_OFFSET), + _texture(ir_tg4, texture_gather, glsl_type::ivec4_type, glsl_type::isampler2D_type, glsl_type::vec2_type, TEX_OFFSET), + _texture(ir_tg4, texture_gather, glsl_type::uvec4_type, glsl_type::usampler2D_type, glsl_type::vec2_type, TEX_OFFSET), + + _texture(ir_tg4, texture_gather, glsl_type::vec4_type, glsl_type::sampler2DArray_type, glsl_type::vec3_type, TEX_OFFSET), + _texture(ir_tg4, texture_gather, glsl_type::ivec4_type, glsl_type::isampler2DArray_type, glsl_type::vec3_type, TEX_OFFSET), + _texture(ir_tg4, texture_gather, glsl_type::uvec4_type, glsl_type::usampler2DArray_type, glsl_type::vec3_type, TEX_OFFSET), + NULL); + F(dFdx) F(dFdy) F(fwidth) diff --git a/src/glsl/glcpp/glcpp-parse.y b/src/glsl/glcpp/glcpp-parse.y index 6eaa5f95ef1..c7ad3e95864 100644 --- a/src/glsl/glcpp/glcpp-parse.y +++ b/src/glsl/glcpp/glcpp-parse.y @@ -1248,6 +1248,9 @@ glcpp_parser_create (const struct gl_extensions *extensions, int api) if (extensions->EXT_shader_integer_mix) add_builtin_define(parser, "GL_EXT_shader_integer_mix", 1); + + if (extensions->ARB_texture_gather) + add_builtin_define(parser, "GL_ARB_texture_gather", 1); } } diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp index 4f2f2893a90..7368a715688 100644 --- a/src/glsl/glsl_parser_extras.cpp +++ b/src/glsl/glsl_parser_extras.cpp @@ -522,6 +522,7 @@ static const _mesa_glsl_extension _mesa_glsl_supported_extensions[] = { EXT(ARB_gpu_shader5, true, false, ARB_gpu_shader5), EXT(AMD_vertex_shader_layer, true, false, AMD_vertex_shader_layer), EXT(EXT_shader_integer_mix, true, true, EXT_shader_integer_mix), + EXT(ARB_texture_gather, true, false, ARB_texture_gather), }; #undef EXT diff --git a/src/glsl/glsl_parser_extras.h b/src/glsl/glsl_parser_extras.h index d557f8ba69d..9c3e88721f8 100644 --- a/src/glsl/glsl_parser_extras.h +++ b/src/glsl/glsl_parser_extras.h @@ -274,6 +274,8 @@ struct _mesa_glsl_parse_state { bool ARB_fragment_coord_conventions_warn; bool ARB_texture_rectangle_enable; bool ARB_texture_rectangle_warn; + bool ARB_texture_gather_enable; + bool ARB_texture_gather_warn; bool EXT_texture_array_enable; bool EXT_texture_array_warn; bool ARB_shader_texture_lod_enable; diff --git a/src/glsl/ir.cpp b/src/glsl/ir.cpp index b0f92cb3f53..81c6380cad0 100644 --- a/src/glsl/ir.cpp +++ b/src/glsl/ir.cpp @@ -1374,7 +1374,7 @@ ir_dereference::is_lvalue() const } -static const char *tex_opcode_strs[] = { "tex", "txb", "txl", "txd", "txf", "txf_ms", "txs", "lod" }; +static const char *tex_opcode_strs[] = { "tex", "txb", "txl", "txd", "txf", "txf_ms", "txs", "lod", "tg4" }; const char *ir_texture::opcode_string() { diff --git a/src/glsl/ir.h b/src/glsl/ir.h index 6c5630b0965..885837a7ab7 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -1559,7 +1559,8 @@ enum ir_texture_opcode { ir_txf, /**< Texel fetch with explicit LOD */ ir_txf_ms, /**< Multisample texture fetch */ ir_txs, /**< Texture size */ - ir_lod /**< Texture lod query */ + ir_lod, /**< Texture lod query */ + ir_tg4 /**< Texture gather */ }; @@ -1584,6 +1585,7 @@ enum ir_texture_opcode { * ) * (txs ) * (lod ) + * (tg4 0) */ class ir_texture : public ir_rvalue { public: diff --git a/src/glsl/ir_clone.cpp b/src/glsl/ir_clone.cpp index fb303b0b75c..fe531a8e306 100644 --- a/src/glsl/ir_clone.cpp +++ b/src/glsl/ir_clone.cpp @@ -248,6 +248,7 @@ ir_texture::clone(void *mem_ctx, struct hash_table *ht) const switch (this->op) { case ir_tex: case ir_lod: + case ir_tg4: break; case ir_txb: new_tex->lod_info.bias = this->lod_info.bias->clone(mem_ctx, ht); diff --git a/src/glsl/ir_hv_accept.cpp b/src/glsl/ir_hv_accept.cpp index 76a607d17cb..3877e721c24 100644 --- a/src/glsl/ir_hv_accept.cpp +++ b/src/glsl/ir_hv_accept.cpp @@ -214,6 +214,7 @@ ir_texture::accept(ir_hierarchical_visitor *v) switch (this->op) { case ir_tex: case ir_lod: + case ir_tg4: break; case ir_txb: s = this->lod_info.bias->accept(v); diff --git a/src/glsl/ir_print_visitor.cpp b/src/glsl/ir_print_visitor.cpp index b5183108d6b..2c06b95f61a 100644 --- a/src/glsl/ir_print_visitor.cpp +++ b/src/glsl/ir_print_visitor.cpp @@ -266,7 +266,7 @@ void ir_print_visitor::visit(ir_texture *ir) printf(" "); } - if (ir->op != ir_txf && ir->op != ir_txf_ms && ir->op != ir_txs) { + if (ir->op != ir_txf && ir->op != ir_txf_ms && ir->op != ir_txs && ir->op != ir_tg4) { if (ir->projector) ir->projector->accept(this); else @@ -285,6 +285,7 @@ void ir_print_visitor::visit(ir_texture *ir) { case ir_tex: case ir_lod: + case ir_tg4: break; case ir_txb: ir->lod_info.bias->accept(this); diff --git a/src/glsl/ir_reader.cpp b/src/glsl/ir_reader.cpp index f0318ea210a..8038b8f5db2 100644 --- a/src/glsl/ir_reader.cpp +++ b/src/glsl/ir_reader.cpp @@ -947,6 +947,8 @@ ir_reader::read_texture(s_expression *expr) { "txf_ms", s_type, s_sampler, s_coord, s_sample_index }; s_pattern txs_pattern[] = { "txs", s_type, s_sampler, s_lod }; + s_pattern tg4_pattern[] = + { "tg4", s_type, s_sampler, s_coord, s_offset }; s_pattern other_pattern[] = { tag, s_type, s_sampler, s_coord, s_offset, s_proj, s_shadow, s_lod }; @@ -960,6 +962,8 @@ ir_reader::read_texture(s_expression *expr) op = ir_txf_ms; } else if (MATCH(expr, txs_pattern)) { op = ir_txs; + } else if (MATCH(expr, tg4_pattern)) { + op = ir_tg4; } else if (MATCH(expr, other_pattern)) { op = ir_texture::get_opcode(tag->value()); if (op == -1) @@ -1010,7 +1014,7 @@ ir_reader::read_texture(s_expression *expr) } } - if (op != ir_txf && op != ir_txf_ms && op != ir_txs && op != ir_lod) { + if (op != ir_txf && op != ir_txf_ms && op != ir_txs && op != ir_lod && op != ir_tg4) { s_int *proj_as_int = SX_AS_INT(s_proj); if (proj_as_int && proj_as_int->value() == 1) { tex->projector = NULL; diff --git a/src/glsl/ir_rvalue_visitor.cpp b/src/glsl/ir_rvalue_visitor.cpp index 8eb1c62c30a..4c3d813206c 100644 --- a/src/glsl/ir_rvalue_visitor.cpp +++ b/src/glsl/ir_rvalue_visitor.cpp @@ -57,6 +57,7 @@ ir_rvalue_base_visitor::rvalue_visit(ir_texture *ir) switch (ir->op) { case ir_tex: case ir_lod: + case ir_tg4: break; case ir_txb: handle_rvalue(&ir->lod_info.bias); diff --git a/src/glsl/opt_tree_grafting.cpp b/src/glsl/opt_tree_grafting.cpp index 9aceb134def..03b920d8a2f 100644 --- a/src/glsl/opt_tree_grafting.cpp +++ b/src/glsl/opt_tree_grafting.cpp @@ -275,6 +275,7 @@ ir_tree_grafting_visitor::visit_enter(ir_texture *ir) switch (ir->op) { case ir_tex: case ir_lod: + case ir_tg4: break; case ir_txb: if (do_graft(&ir->lod_info.bias)) diff --git a/src/glsl/standalone_scaffolding.cpp b/src/glsl/standalone_scaffolding.cpp index 6dec205f7ab..b03734c0693 100644 --- a/src/glsl/standalone_scaffolding.cpp +++ b/src/glsl/standalone_scaffolding.cpp @@ -105,6 +105,7 @@ void initialize_context_to_defaults(struct gl_context *ctx, gl_api api) ctx->Extensions.ARB_texture_multisample = true; ctx->Extensions.ARB_texture_query_lod = true; ctx->Extensions.ARB_gpu_shader5 = true; + ctx->Extensions.ARB_texture_gather = true; ctx->Const.GLSLVersion = 120; diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp index b08107b1c90..f180a7f6486 100644 --- a/src/mesa/program/ir_to_mesa.cpp +++ b/src/mesa/program/ir_to_mesa.cpp @@ -2066,6 +2066,9 @@ ir_to_mesa_visitor::visit(ir_texture *ir) case ir_lod: assert(!"Unexpected ir_lod opcode"); break; + case ir_tg4: + assert(!"Unexpected ir_tg4 opcode"); + break; } const glsl_type *sampler_type = ir->sampler->type;