diff options
author | Brian <brian@yutani.localnet.net> | 2007-03-26 10:13:02 -0600 |
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committer | Brian <brian@yutani.localnet.net> | 2007-03-26 10:13:02 -0600 |
commit | d619cceea47dc3070ebb7f7ea4f8b6b31a672d38 (patch) | |
tree | f8b8a9f3fdc3f17a43436af270b22754b1749d31 /src/mesa/shader/slang/slang_assemble_constructor.c | |
parent | 76f3b66e0489526694d6a39b4a6ac3b1c2bee100 (diff) | |
parent | e71c34aaa173ca451fa02e526ead77758f7eeb74 (diff) |
merge of glsl-compiler-1 branch
Diffstat (limited to 'src/mesa/shader/slang/slang_assemble_constructor.c')
-rw-r--r-- | src/mesa/shader/slang/slang_assemble_constructor.c | 401 |
1 files changed, 0 insertions, 401 deletions
diff --git a/src/mesa/shader/slang/slang_assemble_constructor.c b/src/mesa/shader/slang/slang_assemble_constructor.c deleted file mode 100644 index 6cd320d446..0000000000 --- a/src/mesa/shader/slang/slang_assemble_constructor.c +++ /dev/null @@ -1,401 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5.2 - * - * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. - * - * 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 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 - * BRIAN PAUL 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 slang_assemble_constructor.c - * slang constructor and vector swizzle assembler - * \author Michal Krol - */ - -#include "imports.h" -#include "slang_assemble.h" -#include "slang_storage.h" - - - -/** - * Checks if a field selector is a general swizzle (an r-value swizzle - * with replicated components or an l-value swizzle mask) for a - * vector. Returns GL_TRUE if this is the case, <swz> is filled with - * swizzle information. Returns GL_FALSE otherwise. - */ -GLboolean -_slang_is_swizzle(const char *field, GLuint rows, slang_swizzle * swz) -{ - GLuint i; - GLboolean xyzw = GL_FALSE, rgba = GL_FALSE, stpq = GL_FALSE; - - /* the swizzle can be at most 4-component long */ - swz->num_components = slang_string_length(field); - if (swz->num_components > 4) - return GL_FALSE; - - for (i = 0; i < swz->num_components; i++) { - /* mark which swizzle group is used */ - switch (field[i]) { - case 'x': - case 'y': - case 'z': - case 'w': - xyzw = GL_TRUE; - break; - case 'r': - case 'g': - case 'b': - case 'a': - rgba = GL_TRUE; - break; - case 's': - case 't': - case 'p': - case 'q': - stpq = GL_TRUE; - break; - default: - return GL_FALSE; - } - - /* collect swizzle component */ - switch (field[i]) { - case 'x': - case 'r': - case 's': - swz->swizzle[i] = 0; - break; - case 'y': - case 'g': - case 't': - swz->swizzle[i] = 1; - break; - case 'z': - case 'b': - case 'p': - swz->swizzle[i] = 2; - break; - case 'w': - case 'a': - case 'q': - swz->swizzle[i] = 3; - break; - } - - /* check if the component is valid for given vector's row count */ - if (rows <= swz->swizzle[i]) - return GL_FALSE; - } - - /* only one swizzle group can be used */ - if ((xyzw && rgba) || (xyzw && stpq) || (rgba && stpq)) - return GL_FALSE; - - return GL_TRUE; -} - - - -/** - * Checks if a general swizzle is an l-value swizzle - these swizzles - * do not have duplicated fields. Returns GL_TRUE if this is a - * swizzle mask. Returns GL_FALSE otherwise - */ -GLboolean -_slang_is_swizzle_mask(const slang_swizzle * swz, GLuint rows) -{ - GLuint i, c = 0; - - /* the swizzle may not be longer than the vector dim */ - if (swz->num_components > rows) - return GL_FALSE; - - /* the swizzle components cannot be duplicated */ - for (i = 0; i < swz->num_components; i++) { - if ((c & (1 << swz->swizzle[i])) != 0) - return GL_FALSE; - c |= 1 << swz->swizzle[i]; - } - - return GL_TRUE; -} - - - -/** - * Combines (multiplies) two swizzles to form single swizzle. - * Example: "vec.wzyx.yx" --> "vec.zw". - */ -GLvoid -_slang_multiply_swizzles(slang_swizzle * dst, const slang_swizzle * left, - const slang_swizzle * right) -{ - GLuint i; - - dst->num_components = right->num_components; - for (i = 0; i < right->num_components; i++) - dst->swizzle[i] = left->swizzle[right->swizzle[i]]; -} - - - -static GLboolean -sizeof_argument(slang_assemble_ctx * A, GLuint * size, slang_operation * op) -{ - slang_assembly_typeinfo ti; - GLboolean result = GL_FALSE; - slang_storage_aggregate agg; - - if (!slang_assembly_typeinfo_construct(&ti)) - return GL_FALSE; - if (!_slang_typeof_operation(A, op, &ti)) - goto end1; - - if (!slang_storage_aggregate_construct(&agg)) - goto end1; - if (!_slang_aggregate_variable(&agg, &ti.spec, 0, A->space.funcs, - A->space.structs, A->space.vars, - A->mach, A->file, A->atoms)) - goto end; - - *size = _slang_sizeof_aggregate(&agg); - result = GL_TRUE; - - end: - slang_storage_aggregate_destruct(&agg); - end1: - slang_assembly_typeinfo_destruct(&ti); - return result; -} - - -static GLboolean -constructor_aggregate(slang_assemble_ctx * A, - const slang_storage_aggregate * flat, - slang_operation * op, GLuint garbage_size) -{ - slang_assembly_typeinfo ti; - GLboolean result = GL_FALSE; - slang_storage_aggregate agg, flat_agg; - - if (!slang_assembly_typeinfo_construct(&ti)) - return GL_FALSE; - if (!_slang_typeof_operation(A, op, &ti)) - goto end1; - - if (!slang_storage_aggregate_construct(&agg)) - goto end1; - if (!_slang_aggregate_variable(&agg, &ti.spec, 0, A->space.funcs, - A->space.structs, A->space.vars, - A->mach, A->file, A->atoms)) - goto end2; - - if (!slang_storage_aggregate_construct(&flat_agg)) - goto end2; - if (!_slang_flatten_aggregate(&flat_agg, &agg)) - goto end; - - if (!_slang_assemble_operation(A, op, slang_ref_forbid)) - goto end; - - /* TODO: convert (generic) elements */ - - /* free the garbage */ - if (garbage_size != 0) { - GLuint i; - - /* move the non-garbage part to the end of the argument */ - if (!slang_assembly_file_push_label(A->file, slang_asm_addr_push, 0)) - goto end; - for (i = flat_agg.count * 4 - garbage_size; i > 0; i -= 4) { - if (!slang_assembly_file_push_label2(A->file, slang_asm_float_move, - garbage_size + i, i)) { - goto end; - } - } - if (!slang_assembly_file_push_label - (A->file, slang_asm_local_free, garbage_size + 4)) - goto end; - } - - result = GL_TRUE; - end: - slang_storage_aggregate_destruct(&flat_agg); - end2: - slang_storage_aggregate_destruct(&agg); - end1: - slang_assembly_typeinfo_destruct(&ti); - return result; -} - - -GLboolean -_slang_assemble_constructor(slang_assemble_ctx * A, const slang_operation * op) -{ - slang_assembly_typeinfo ti; - GLboolean result = GL_FALSE; - slang_storage_aggregate agg, flat; - GLuint size, i; - GLuint arg_sums[2]; - - /* get typeinfo of the constructor (the result of constructor expression) */ - if (!slang_assembly_typeinfo_construct(&ti)) - return GL_FALSE; - if (!_slang_typeof_operation(A, op, &ti)) - goto end1; - - /* create an aggregate of the constructor */ - if (!slang_storage_aggregate_construct(&agg)) - goto end1; - if (!_slang_aggregate_variable(&agg, &ti.spec, 0, A->space.funcs, - A->space.structs, A->space.vars, - A->mach, A->file, A->atoms)) - goto end2; - - /* calculate size of the constructor */ - size = _slang_sizeof_aggregate(&agg); - - /* flatten the constructor */ - if (!slang_storage_aggregate_construct(&flat)) - goto end2; - if (!_slang_flatten_aggregate(&flat, &agg)) - goto end; - - /* collect the last two constructor's argument size sums */ - arg_sums[0] = 0; /* will hold all but the last argument's size sum */ - arg_sums[1] = 0; /* will hold all argument's size sum */ - for (i = 0; i < op->num_children; i++) { - GLuint arg_size = 0; - - if (!sizeof_argument(A, &arg_size, &op->children[i])) - goto end; - if (i > 0) - arg_sums[0] = arg_sums[1]; - arg_sums[1] += arg_size; - } - - /* check if there are too many arguments */ - if (arg_sums[0] >= size) { - /* TODO: info log: too many arguments in constructor list */ - goto end; - } - - /* check if there are too few arguments */ - if (arg_sums[1] < size) { - /* TODO: info log: too few arguments in constructor list */ - goto end; - } - - /* traverse the children that form the constructor expression */ - for (i = op->num_children; i > 0; i--) { - GLuint garbage_size; - - /* the last argument may be too big - calculate the unnecessary - * data size - */ - if (i == op->num_children) - garbage_size = arg_sums[1] - size; - else - garbage_size = 0; - - if (!constructor_aggregate - (A, &flat, &op->children[i - 1], garbage_size)) - goto end; - } - - result = GL_TRUE; - end: - slang_storage_aggregate_destruct(&flat); - end2: - slang_storage_aggregate_destruct(&agg); - end1: - slang_assembly_typeinfo_destruct(&ti); - return result; -} - - - -GLboolean -_slang_assemble_constructor_from_swizzle(slang_assemble_ctx * A, - const slang_swizzle * swz, - const slang_type_specifier * spec, - const slang_type_specifier * master_spec) -{ - const GLuint master_rows = _slang_type_dim(master_spec->type); - GLuint i; - - for (i = 0; i < master_rows; i++) { - switch (_slang_type_base(master_spec->type)) { - case slang_spec_bool: - if (!slang_assembly_file_push_label2(A->file, slang_asm_bool_copy, - (master_rows - i) * 4, i * 4)) - return GL_FALSE; - break; - case slang_spec_int: - if (!slang_assembly_file_push_label2(A->file, slang_asm_int_copy, - (master_rows - i) * 4, i * 4)) - return GL_FALSE; - break; - case slang_spec_float: - if (!slang_assembly_file_push_label2(A->file, slang_asm_float_copy, - (master_rows - i) * 4, i * 4)) - return GL_FALSE; - break; - default: - break; - } - } - - if (!slang_assembly_file_push_label(A->file, slang_asm_local_free, 4)) - return GL_FALSE; - - for (i = swz->num_components; i > 0; i--) { - const GLuint n = i - 1; - - if (!slang_assembly_file_push_label2(A->file, slang_asm_local_addr, - A->local.swizzle_tmp, 16)) - return GL_FALSE; - if (!slang_assembly_file_push_label(A->file, slang_asm_addr_push, - swz->swizzle[n] * 4)) - return GL_FALSE; - if (!slang_assembly_file_push(A->file, slang_asm_addr_add)) - return GL_FALSE; - - switch (_slang_type_base(master_spec->type)) { - case slang_spec_bool: - if (!slang_assembly_file_push(A->file, slang_asm_bool_deref)) - return GL_FALSE; - break; - case slang_spec_int: - if (!slang_assembly_file_push(A->file, slang_asm_int_deref)) - return GL_FALSE; - break; - case slang_spec_float: - if (!slang_assembly_file_push(A->file, slang_asm_float_deref)) - return GL_FALSE; - break; - default: - break; - } - } - - return GL_TRUE; -} |