*/
#define BRILINEAR_FACTOR 2
+static LLVMValueRef
+lp_build_minify(struct lp_build_context *bld,
+ LLVMValueRef base_size,
+ LLVMValueRef level);
/**
* Does the given texture wrap mode allow sampling the texture border color?
*/
static LLVMValueRef
lp_build_rho(struct lp_build_sample_context *bld,
+ unsigned unit,
const LLVMValueRef ddx[4],
const LLVMValueRef ddy[4])
{
+ struct lp_build_context *int_size_bld = &bld->int_size_bld;
struct lp_build_context *float_size_bld = &bld->float_size_bld;
struct lp_build_context *float_bld = &bld->float_bld;
const unsigned dims = bld->dims;
LLVMValueRef dsdx, dsdy, dtdx, dtdy, drdx, drdy;
LLVMValueRef rho_x, rho_y;
LLVMValueRef rho_vec;
- LLVMValueRef float_size;
+ LLVMValueRef int_size, float_size;
LLVMValueRef rho;
+ LLVMValueRef first_level, first_level_vec;
dsdx = ddx[0];
dsdy = ddy[0];
rho_vec = lp_build_max(float_size_bld, rho_x, rho_y);
- float_size = lp_build_int_to_float(float_size_bld, bld->int_size);
+ first_level = bld->dynamic_state->first_level(bld->dynamic_state,
+ bld->gallivm, unit);
+ first_level_vec = lp_build_broadcast_scalar(&bld->int_size_bld, first_level);
+ int_size = lp_build_minify(int_size_bld, bld->int_size, first_level_vec);
+ float_size = lp_build_int_to_float(float_size_bld, int_size);
rho_vec = lp_build_mul(float_size_bld, rho_vec, float_size);
else {
LLVMValueRef rho;
- rho = lp_build_rho(bld, ddx, ddy);
+ rho = lp_build_rho(bld, unit, ddx, ddy);
/*
* Compute lod = log2(rho)
LLVMValueRef *level_out)
{
struct lp_build_context *int_bld = &bld->int_bld;
- LLVMValueRef last_level, level;
-
- LLVMValueRef zero = lp_build_const_int32(bld->gallivm, 0);
+ LLVMValueRef first_level, last_level, level;
+ first_level = bld->dynamic_state->first_level(bld->dynamic_state,
+ bld->gallivm, unit);
last_level = bld->dynamic_state->last_level(bld->dynamic_state,
bld->gallivm, unit);
/* convert float lod to integer */
- level = lod_ipart;
+ level = lp_build_add(int_bld, lod_ipart, first_level);
/* clamp level to legal range of levels */
- *level_out = lp_build_clamp(int_bld, level, zero, last_level);
+ *level_out = lp_build_clamp(int_bld, level, first_level, last_level);
}
LLVMBuilderRef builder = bld->gallivm->builder;
struct lp_build_context *int_bld = &bld->int_bld;
struct lp_build_context *float_bld = &bld->float_bld;
- LLVMValueRef last_level;
+ LLVMValueRef first_level, last_level;
LLVMValueRef clamp_min;
LLVMValueRef clamp_max;
- *level0_out = lod_ipart;
- *level1_out = lp_build_add(int_bld, lod_ipart, int_bld->one);
+ first_level = bld->dynamic_state->first_level(bld->dynamic_state,
+ bld->gallivm, unit);
+
+ *level0_out = lp_build_add(int_bld, lod_ipart, first_level);
+ *level1_out = lp_build_add(int_bld, *level0_out, int_bld->one);
last_level = bld->dynamic_state->last_level(bld->dynamic_state,
bld->gallivm, unit);
/*
- * Clamp both lod_ipart and lod_ipart + 1 to [0, last_level], with the
- * minimum number of comparisons, and zeroing lod_fpart in the extreme
+ * Clamp both *level0_out and *level1_out to [first_level, last_level], with
+ * the minimum number of comparisons, and zeroing lod_fpart in the extreme
* ends in the process.
*/
- /* lod_ipart < 0 */
+ /* *level0_out < first_level */
clamp_min = LLVMBuildICmp(builder, LLVMIntSLT,
- lod_ipart, int_bld->zero,
- "clamp_lod_to_zero");
+ *level0_out, first_level,
+ "clamp_lod_to_first");
*level0_out = LLVMBuildSelect(builder, clamp_min,
- int_bld->zero, *level0_out, "");
+ first_level, *level0_out, "");
*level1_out = LLVMBuildSelect(builder, clamp_min,
- int_bld->zero, *level1_out, "");
+ first_level, *level1_out, "");
*lod_fpart_inout = LLVMBuildSelect(builder, clamp_min,
float_bld->zero, *lod_fpart_inout, "");
- /* lod_ipart >= last_level */
+ /* *level0_out >= last_level */
clamp_max = LLVMBuildICmp(builder, LLVMIntSGE,
- lod_ipart, last_level,
+ *level0_out, last_level,
"clamp_lod_to_last");
*level0_out = LLVMBuildSelect(builder, clamp_max,
LLVMValueRef base_size,
LLVMValueRef level)
{
+ LLVMBuilderRef builder = bld->gallivm->builder;
assert(lp_check_value(bld->type, base_size));
assert(lp_check_value(bld->type, level));
}
else {
LLVMValueRef size =
- LLVMBuildLShr(bld->builder, base_size, level, "minify");
+ LLVMBuildLShr(builder, base_size, level, "minify");
assert(bld->type.sign);
size = lp_build_max(bld, size, bld->one);
return size;
LLVMValueRef arx_ge_ary, arx_ge_arz;
LLVMValueRef ary_ge_arx, ary_ge_arz;
LLVMValueRef arx_ge_ary_arz, ary_ge_arx_arz;
- LLVMValueRef rx_pos, ry_pos, rz_pos;
assert(bld->coord_bld.type.length == 4);
arx_ge_ary_arz = LLVMBuildAnd(builder, arx_ge_ary, arx_ge_arz, "");
ary_ge_arx_arz = LLVMBuildAnd(builder, ary_ge_arx, ary_ge_arz, "");
- rx_pos = LLVMBuildFCmp(builder, LLVMRealUGE, rx, float_bld->zero, "");
- ry_pos = LLVMBuildFCmp(builder, LLVMRealUGE, ry, float_bld->zero, "");
- rz_pos = LLVMBuildFCmp(builder, LLVMRealUGE, rz, float_bld->zero, "");
-
{
struct lp_build_if_state if_ctx;
LLVMValueRef face_s_var;
{
struct lp_build_if_state if_ctx2;
- ary_ge_arx_arz = LLVMBuildAnd(builder, ary_ge_arx, ary_ge_arz, "");
-
lp_build_if(&if_ctx2, bld->gallivm, ary_ge_arx_arz);
{
/* +/- Y face */
LLVMValueRef *out_offset,
LLVMValueRef *out_subcoord)
{
+ LLVMBuilderRef builder = bld->gallivm->builder;
LLVMValueRef offset;
LLVMValueRef subcoord;
*/
#if 0
LLVMValueRef block_width = lp_build_const_int_vec(bld->type, block_length);
- subcoord = LLVMBuildURem(bld->builder, coord, block_width, "");
- coord = LLVMBuildUDiv(bld->builder, coord, block_width, "");
+ subcoord = LLVMBuildURem(builder, coord, block_width, "");
+ coord = LLVMBuildUDiv(builder, coord, block_width, "");
#else
- unsigned logbase2 = util_unsigned_logbase2(block_length);
+ unsigned logbase2 = util_logbase2(block_length);
LLVMValueRef block_shift = lp_build_const_int_vec(bld->gallivm, bld->type, logbase2);
LLVMValueRef block_mask = lp_build_const_int_vec(bld->gallivm, bld->type, block_length - 1);
- subcoord = LLVMBuildAnd(bld->builder, coord, block_mask, "");
- coord = LLVMBuildLShr(bld->builder, coord, block_shift, "");
+ subcoord = LLVMBuildAnd(builder, coord, block_mask, "");
+ coord = LLVMBuildLShr(builder, coord, block_shift, "");
#endif
}