/*
* Mesa 3-D graphics library
- * Version: 6.5
+ * Version: 6.5.2
*
* Copyright (C) 2005-2006 Brian Paul All Rights Reserved.
*
#include "slang_assemble.h"
#include "slang_storage.h"
-/* _slang_is_swizzle() */
-GLboolean _slang_is_swizzle (const char *field, GLuint rows, slang_swizzle *swz)
+
+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;
+ 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;
}
-/* _slang_is_swizzle_mask() */
-GLboolean _slang_is_swizzle_mask (const slang_swizzle *swz, GLuint rows)
+
+GLboolean
+_slang_is_swizzle_mask(const slang_swizzle * swz, GLuint rows)
{
- GLuint i, c = 0;
+ GLuint i, c = 0;
- /* the swizzle may not be longer than the vector dim */
- if (swz->num_components > rows)
- return GL_FALSE;
+ /* 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];
- }
+ /* 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;
+ return GL_TRUE;
}
-/* _slang_multiply_swizzles() */
-GLvoid _slang_multiply_swizzles (slang_swizzle *dst, const slang_swizzle *left,
- const slang_swizzle *right)
+
+GLvoid
+_slang_multiply_swizzles(slang_swizzle * dst, const slang_swizzle * left,
+ const slang_swizzle * right)
{
- GLuint i;
+ GLuint i;
- dst->num_components = right->num_components;
- for (i = 0; i < right->num_components; i++)
- dst->swizzle[i] = left->swizzle[right->swizzle[i]];
+ dst->num_components = right->num_components;
+ for (i = 0; i < right->num_components; i++)
+ dst->swizzle[i] = left->swizzle[right->swizzle[i]];
}
-/* _slang_assemble_constructor() */
+
static GLboolean
-sizeof_argument (slang_assemble_ctx *A, GLuint *size, slang_operation *op)
+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))
+ if (!slang_assembly_typeinfo_construct(&ti))
return GL_FALSE;
- if (!_slang_typeof_operation (A, op, &ti))
+ if (!_slang_typeof_operation(A, op, &ti))
goto end1;
- if (!slang_storage_aggregate_construct (&agg))
+ 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))
+ 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);
+ *size = _slang_sizeof_aggregate(&agg);
result = GL_TRUE;
-end:
- slang_storage_aggregate_destruct (&agg);
-end1:
- slang_assembly_typeinfo_destruct (&ti);
+ 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)
+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;
+ 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, slang_operation *op)
+GLboolean
+_slang_assemble_constructor(slang_assemble_ctx * A, 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;
+ 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;
}
-/* _slang_assemble_constructor_from_swizzle() */
-GLboolean _slang_assemble_constructor_from_swizzle (slang_assemble_ctx *A, const slang_swizzle *swz,
- slang_type_specifier *spec, slang_type_specifier *master_spec)
+
+GLboolean
+_slang_assemble_constructor_from_swizzle(slang_assemble_ctx * A,
+ const slang_swizzle * swz,
+ slang_type_specifier * spec,
+ slang_type_specifier * master_spec)
{
- GLuint master_rows, i;
-
- master_rows = _slang_type_dim (master_spec->type);
- 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--)
- {
- 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;
+ GLuint master_rows, i;
+
+ master_rows = _slang_type_dim(master_spec->type);
+ 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--) {
+ 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;
}
-
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