[Mesa-dev] [PATCH 4/7] glsl_to_tgsi: allocate arrays separately
Christian König
deathsimple at vodafone.de
Mon Mar 11 05:44:51 PDT 2013
From: Christian König <christian.koenig at amd.com>
Instead of allocating everything as temporaries, use the
new array allocation functions.
Signed-off-by: Christian König <christian.koenig at amd.com>
---
src/mesa/main/mtypes.h | 1 +
src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 83 ++++++++++++++++++----------
2 files changed, 54 insertions(+), 30 deletions(-)
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 4f09513..f7499d0 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1905,6 +1905,7 @@ struct gl_transform_feedback_state
typedef enum
{
PROGRAM_TEMPORARY, /**< machine->Temporary[] */
+ PROGRAM_ARRAY, /**< Arrays & Matrixes */
PROGRAM_INPUT, /**< machine->Inputs[] */
PROGRAM_OUTPUT, /**< machine->Outputs[] */
PROGRAM_LOCAL_PARAM, /**< gl_program->LocalParams[] */
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index b2cccbc..ce90188 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -85,6 +85,11 @@ extern "C" {
*/
#define MAX_TEMPS 4096
+/**
+ * Maximum number of arrays
+ */
+#define MAX_ARRAYS 256
+
/* will be 4 for GLSL 4.00 */
#define MAX_GLSL_TEXTURE_OFFSET 1
@@ -315,6 +320,9 @@ public:
int next_temp;
+ unsigned array_sizes[MAX_ARRAYS];
+ unsigned next_array;
+
int num_address_regs;
int samplers_used;
bool indirect_addr_temps;
@@ -550,6 +558,7 @@ glsl_to_tgsi_visitor::emit(ir_instruction *ir, unsigned op,
if (dst.reladdr) {
switch(dst.file) {
case PROGRAM_TEMPORARY:
+ case PROGRAM_ARRAY:
this->indirect_addr_temps = true;
break;
case PROGRAM_LOCAL_PARAM:
@@ -571,6 +580,7 @@ glsl_to_tgsi_visitor::emit(ir_instruction *ir, unsigned op,
if(inst->src[i].reladdr) {
switch(inst->src[i].file) {
case PROGRAM_TEMPORARY:
+ case PROGRAM_ARRAY:
this->indirect_addr_temps = true;
break;
case PROGRAM_LOCAL_PARAM:
@@ -1005,17 +1015,26 @@ glsl_to_tgsi_visitor::get_temp(const glsl_type *type)
st_src_reg src;
src.type = native_integers ? type->base_type : GLSL_TYPE_FLOAT;
- src.file = PROGRAM_TEMPORARY;
- src.index = next_temp;
src.reladdr = NULL;
- next_temp += type_size(type);
+ src.negate = 0;
+
+ if (type->is_array() || type->is_matrix()) {
+ src.file = PROGRAM_ARRAY;
+ src.index = next_array << 16 | 0x8000;
+ array_sizes[next_array] = type_size(type);
+ ++next_array;
+
+ } else {
+ src.file = PROGRAM_TEMPORARY;
+ src.index = next_temp;
+ next_temp += type_size(type);
+ }
if (type->is_array() || type->is_record()) {
src.swizzle = SWIZZLE_NOOP;
} else {
src.swizzle = swizzle_for_size(type->vector_elements);
}
- src.negate = 0;
return src;
}
@@ -2975,6 +2994,7 @@ glsl_to_tgsi_visitor::glsl_to_tgsi_visitor()
{
result.file = PROGRAM_UNDEFINED;
next_temp = 1;
+ next_array = 0;
next_signature_id = 1;
num_immediates = 0;
current_function = NULL;
@@ -4011,6 +4031,7 @@ struct st_translate {
struct ureg_program *ureg;
struct ureg_dst temps[MAX_TEMPS];
+ struct ureg_dst arrays[MAX_ARRAYS];
struct ureg_src *constants;
struct ureg_src *immediates;
struct ureg_dst outputs[PIPE_MAX_SHADER_OUTPUTS];
@@ -4129,16 +4150,30 @@ dst_register(struct st_translate *t,
gl_register_file file,
GLuint index)
{
+ unsigned array;
+
switch(file) {
case PROGRAM_UNDEFINED:
return ureg_dst_undef();
case PROGRAM_TEMPORARY:
+ assert(index >= 0);
+ assert(index < (int) Elements(t->temps));
+
if (ureg_dst_is_undef(t->temps[index]))
t->temps[index] = ureg_DECL_local_temporary(t->ureg);
return t->temps[index];
+ case PROGRAM_ARRAY:
+ array = index >> 16;
+
+ assert(array >= 0);
+ assert(array < (int) Elements(t->arrays));
+
+ return ureg_dst_array_offset(t->arrays[array],
+ (int)(index & 0xFFFF) - 0x8000);
+
case PROGRAM_OUTPUT:
if (t->procType == TGSI_PROCESSOR_VERTEX)
assert(index < VERT_RESULT_MAX);
@@ -4173,11 +4208,8 @@ src_register(struct st_translate *t,
return ureg_src_undef();
case PROGRAM_TEMPORARY:
- assert(index >= 0);
- assert(index < (int) Elements(t->temps));
- if (ureg_dst_is_undef(t->temps[index]))
- t->temps[index] = ureg_DECL_local_temporary(t->ureg);
- return ureg_src(t->temps[index]);
+ case PROGRAM_ARRAY:
+ return ureg_src(dst_register(t, file, index));
case PROGRAM_ENV_PARAM:
case PROGRAM_LOCAL_PARAM:
@@ -4259,8 +4291,10 @@ translate_dst(struct st_translate *t,
}
}
- if (dst_reg->reladdr != NULL)
+ if (dst_reg->reladdr != NULL) {
+ assert(dst_reg->file != PROGRAM_TEMPORARY);
dst = ureg_dst_indirect(dst, ureg_src(t->address[0]));
+ }
return dst;
}
@@ -4283,26 +4317,8 @@ translate_src(struct st_translate *t, const st_src_reg *src_reg)
src = ureg_negate(src);
if (src_reg->reladdr != NULL) {
- /* Normally ureg_src_indirect() would be used here, but a stupid compiler
- * bug in g++ makes ureg_src_indirect (an inline C function) erroneously
- * set the bit for src.Negate. So we have to do the operation manually
- * here to work around the compiler's problems. */
- /*src = ureg_src_indirect(src, ureg_src(t->address[0]));*/
- struct ureg_src addr = ureg_src(t->address[0]);
- src.Indirect = 1;
- src.IndirectFile = addr.File;
- src.IndirectIndex = addr.Index;
- src.IndirectSwizzle = addr.SwizzleX;
-
- if (src_reg->file != PROGRAM_INPUT &&
- src_reg->file != PROGRAM_OUTPUT) {
- /* If src_reg->index was negative, it was set to zero in
- * src_register(). Reassign it now. But don't do this
- * for input/output regs since they get remapped while
- * const buffers don't.
- */
- src.Index = src_reg->index;
- }
+ assert(src_reg->file != PROGRAM_TEMPORARY);
+ src = ureg_src_indirect(src, ureg_src(t->address[0]));
}
return src;
@@ -4783,6 +4799,13 @@ st_translate_program(
t->address[0] = ureg_DECL_address(ureg);
}
+ /* Declare arrays
+ */
+ for (i = 0; i < program->next_array; ++i) {
+ t->arrays[i] = ureg_DECL_array_temporary(t->ureg, program->array_sizes[i],
+ TRUE);
+ }
+
/* Declare misc input registers
*/
{
--
1.7.9.5
More information about the mesa-dev
mailing list