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tgsi/scan: turn a huge if-else-if.. chain into a switch statement 

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Marek Olšák 2016-11-05 18:21:57 +01:00
parent f864547fa9
commit bdd48e47c0
1 changed files with 30 additions and 14 deletions
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44
src/gallium/auxiliary/tgsi/tgsi_scan.c
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@ -455,14 +455,17 @@ scan_declaration(struct tgsi_shader_info *info,
unsigned semName = fulldecl->Semantic.Name;
unsigned semIndex = fulldecl->Semantic.Index +
(reg - fulldecl->Range.First);
int buffer;
unsigned index, target, type;
/* only first 32 regs will appear in this bitfield */
info->file_mask[file] |= (1 << reg);
info->file_count[file]++;
info->file_max[file] = MAX2(info->file_max[file], (int)reg);
if (file == TGSI_FILE_CONSTANT) {
int buffer = 0;
switch (file) {
case TGSI_FILE_CONSTANT:
buffer = 0;
if (fulldecl->Declaration.Dimension)
buffer = fulldecl->Dim.Index2D;
@ -470,13 +473,19 @@ scan_declaration(struct tgsi_shader_info *info,
info->const_file_max[buffer] =
MAX2(info->const_file_max[buffer], (int)reg);
info->const_buffers_declared |= 1u << buffer;
} else if (file == TGSI_FILE_IMAGE) {
break;
case TGSI_FILE_IMAGE:
info->images_declared |= 1u << reg;
if (fulldecl->Image.Resource == TGSI_TEXTURE_BUFFER)
info->images_buffers |= 1 << reg;
} else if (file == TGSI_FILE_BUFFER) {
break;
case TGSI_FILE_BUFFER:
info->shader_buffers_declared |= 1u << reg;
} else if (file == TGSI_FILE_INPUT) {
break;
case TGSI_FILE_INPUT:
info->input_semantic_name[reg] = (ubyte) semName;
info->input_semantic_index[reg] = (ubyte) semIndex;
info->input_interpolate[reg] = (ubyte)fulldecl->Interp.Interpolate;
@ -494,9 +503,10 @@ scan_declaration(struct tgsi_shader_info *info,
else if (semName == TGSI_SEMANTIC_FACE)
info->uses_frontface = TRUE;
}
}
else if (file == TGSI_FILE_SYSTEM_VALUE) {
unsigned index = fulldecl->Range.First;
break;
case TGSI_FILE_SYSTEM_VALUE:
index = fulldecl->Range.First;
info->system_value_semantic_name[index] = semName;
info->num_system_values = MAX2(info->num_system_values, index + 1);
@ -530,8 +540,9 @@ scan_declaration(struct tgsi_shader_info *info,
info->reads_samplemask = TRUE;
break;
}
}
else if (file == TGSI_FILE_OUTPUT) {
break;
case TGSI_FILE_OUTPUT:
info->output_semantic_name[reg] = (ubyte) semName;
info->output_semantic_index[reg] = (ubyte) semIndex;
info->num_outputs = MAX2(info->num_outputs, reg + 1);
@ -578,12 +589,16 @@ scan_declaration(struct tgsi_shader_info *info,
info->writes_edgeflag = TRUE;
}
}
} else if (file == TGSI_FILE_SAMPLER) {
break;
case TGSI_FILE_SAMPLER:
STATIC_ASSERT(sizeof(info->samplers_declared) * 8 >= PIPE_MAX_SAMPLERS);
info->samplers_declared |= 1u << reg;
} else if (file == TGSI_FILE_SAMPLER_VIEW) {
unsigned target = fulldecl->SamplerView.Resource;
unsigned type = fulldecl->SamplerView.ReturnTypeX;
break;
case TGSI_FILE_SAMPLER_VIEW:
target = fulldecl->SamplerView.Resource;
type = fulldecl->SamplerView.ReturnTypeX;
assert(target < TGSI_TEXTURE_UNKNOWN);
if (info->sampler_targets[reg] == TGSI_TEXTURE_UNKNOWN) {
@ -595,6 +610,7 @@ scan_declaration(struct tgsi_shader_info *info,
assert(info->sampler_targets[reg] == target);
assert(info->sampler_type[reg] == type);
}
break;
}
}
}