LLVMTypeRef
lp_build_elem_type(union lp_type type)
{
- if (type.kind == LP_TYPE_FLOAT) {
+ if (type.floating) {
assert(type.sign);
switch(type.width) {
case 32:
boolean
lp_check_elem_type(union lp_type type, LLVMTypeRef elem_type)
{
- LLVMTypeKind elem_kind = LLVMGetTypeKind(elem_type);
+ LLVMTypeKind elem_kind;
- if (type.kind == LP_TYPE_FLOAT) {
+ assert(elem_type);
+ if(!elem_type)
+ return FALSE;
+
+ elem_kind = LLVMGetTypeKind(elem_type);
+
+ if (type.floating) {
switch(type.width) {
case 32:
if(elem_kind != LLVMFloatTypeKind)
{
LLVMTypeRef elem_type;
+ assert(vec_type);
+ if(!vec_type)
+ return FALSE;
+
if(LLVMGetTypeKind(vec_type) != LLVMVectorTypeKind)
return FALSE;
}
+boolean
+lp_check_value(union lp_type type, LLVMValueRef val)
+{
+ LLVMTypeRef vec_type;
+
+ assert(val);
+ if(!val)
+ return FALSE;
+
+ vec_type = LLVMTypeOf(val);
+
+ return lp_check_vec_type(type, vec_type);
+}
+
+
+LLVMValueRef
+lp_build_undef(union lp_type type)
+{
+ LLVMTypeRef vec_type = lp_build_vec_type(type);
+ return LLVMGetUndef(vec_type);
+}
+
+
+LLVMValueRef
+lp_build_zero(union lp_type type)
+{
+ LLVMTypeRef vec_type = lp_build_vec_type(type);
+ return LLVMConstNull(vec_type);
+}
+
+
+LLVMValueRef
+lp_build_one(union lp_type type)
+{
+ LLVMTypeRef elem_type;
+ LLVMValueRef elems[LP_MAX_VECTOR_LENGTH];
+ unsigned i;
+
+ assert(type.length < LP_MAX_VECTOR_LENGTH);
+
+ elem_type = lp_build_elem_type(type);
+
+ if(type.floating)
+ elems[0] = LLVMConstReal(elem_type, 1.0);
+ else if(type.fixed)
+ elems[0] = LLVMConstInt(elem_type, 1LL << (type.width/2), 0);
+ else if(!type.norm)
+ elems[0] = LLVMConstInt(elem_type, 1, 0);
+ else {
+ /* special case' -- 1.0 for normalized types is more easily attained if
+ * we start with a vector consisting of all bits set */
+ LLVMTypeRef vec_type = LLVMVectorType(elem_type, type.length);
+ LLVMValueRef vec = LLVMConstAllOnes(vec_type);
+
+ if(type.sign)
+ vec = LLVMConstLShr(vec, LLVMConstInt(LLVMInt32Type(), 1, 0));
+
+ return vec;
+ }
+
+ for(i = 1; i < type.length; ++i)
+ elems[i] = elems[0];
+
+ return LLVMConstVector(elems, type.length);
+}
+
+
LLVMValueRef
lp_build_const_aos(union lp_type type,
double r, double g, double b, double a,
if(swizzle == NULL)
swizzle = default_swizzle;
- if(type.kind == LP_TYPE_FLOAT) {
- for(i = 0; i < type.length; i += 4) {
- elems[i + swizzle[0]] = LLVMConstReal(elem_type, r);
- elems[i + swizzle[1]] = LLVMConstReal(elem_type, g);
- elems[i + swizzle[2]] = LLVMConstReal(elem_type, b);
- elems[i + swizzle[3]] = LLVMConstReal(elem_type, a);
- }
+ if(type.floating) {
+ elems[swizzle[0]] = LLVMConstReal(elem_type, r);
+ elems[swizzle[1]] = LLVMConstReal(elem_type, g);
+ elems[swizzle[2]] = LLVMConstReal(elem_type, b);
+ elems[swizzle[3]] = LLVMConstReal(elem_type, a);
}
else {
unsigned shift;
long long llscale;
double dscale;
- if(type.kind == LP_TYPE_FIXED)
+ if(type.fixed)
shift = type.width/2;
else if(type.norm)
shift = type.sign ? type.width - 1 : type.width;
dscale = (double)llscale;
assert((long long)dscale == llscale);
- for(i = 0; i < type.length; i += 4) {
- elems[i + swizzle[0]] = LLVMConstInt(elem_type, r*dscale + 0.5, 0);
- elems[i + swizzle[1]] = LLVMConstInt(elem_type, g*dscale + 0.5, 0);
- elems[i + swizzle[2]] = LLVMConstInt(elem_type, b*dscale + 0.5, 0);
- elems[i + swizzle[3]] = LLVMConstInt(elem_type, a*dscale + 0.5, 0);
- }
+ elems[swizzle[0]] = LLVMConstInt(elem_type, r*dscale + 0.5, 0);
+ elems[swizzle[1]] = LLVMConstInt(elem_type, g*dscale + 0.5, 0);
+ elems[swizzle[2]] = LLVMConstInt(elem_type, b*dscale + 0.5, 0);
+ elems[swizzle[3]] = LLVMConstInt(elem_type, a*dscale + 0.5, 0);
}
+ for(i = 4; i < type.length; ++i)
+ elems[i] = elems[i % 4];
+
return LLVMConstVector(elems, type.length);
}
}
-LLVMValueRef
-lp_build_add(LLVMBuilderRef builder,
- LLVMValueRef a,
- LLVMValueRef b,
- LLVMValueRef zero)
+static LLVMValueRef
+lp_build_min_simple(struct lp_build_context *bld,
+ LLVMValueRef a,
+ LLVMValueRef b)
{
- if(a == zero)
- return b;
- else if(b == zero)
- return a;
- else if(LLVMIsConstant(a) && LLVMIsConstant(b))
- return LLVMConstAdd(a, b);
+ const union lp_type type = bld->type;
+ const char *intrinsic = NULL;
+ LLVMValueRef cond;
+
+ /* TODO: optimize the constant case */
+
+#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
+ if(type.width * type.length == 128) {
+ if(type.floating)
+ if(type.width == 32)
+ intrinsic = "llvm.x86.sse.min.ps";
+ if(type.width == 64)
+ intrinsic = "llvm.x86.sse2.min.pd";
+ else {
+ if(type.width == 8 && !type.sign)
+ intrinsic = "llvm.x86.sse2.pminu.b";
+ if(type.width == 16 && type.sign)
+ intrinsic = "llvm.x86.sse2.pmins.w";
+ }
+ }
+#endif
+
+ if(intrinsic)
+ return lp_build_intrinsic_binary(bld->builder, intrinsic, a, b);
+
+ if(type.floating)
+ cond = LLVMBuildFCmp(bld->builder, LLVMRealULT, a, b, "");
else
- return LLVMBuildAdd(builder, a, b, "");
+ cond = LLVMBuildICmp(bld->builder, type.sign ? LLVMIntSLT : LLVMIntULT, a, b, "");
+ return LLVMBuildSelect(bld->builder, cond, a, b, "");
}
-LLVMValueRef
-lp_build_sub(LLVMBuilderRef builder,
- LLVMValueRef a,
- LLVMValueRef b,
- LLVMValueRef zero)
+static LLVMValueRef
+lp_build_max_simple(struct lp_build_context *bld,
+ LLVMValueRef a,
+ LLVMValueRef b)
{
- if(b == zero)
- return a;
- else if(a == b)
- return zero;
- else if(LLVMIsConstant(a) && LLVMIsConstant(b))
- return LLVMConstSub(a, b);
+ const union lp_type type = bld->type;
+ const char *intrinsic = NULL;
+ LLVMValueRef cond;
+
+ /* TODO: optimize the constant case */
+
+#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
+ if(type.width * type.length == 128) {
+ if(type.floating)
+ if(type.width == 32)
+ intrinsic = "llvm.x86.sse.max.ps";
+ if(type.width == 64)
+ intrinsic = "llvm.x86.sse2.max.pd";
+ else {
+ if(type.width == 8 && !type.sign)
+ intrinsic = "llvm.x86.sse2.pmaxu.b";
+ if(type.width == 16 && type.sign)
+ intrinsic = "llvm.x86.sse2.pmaxs.w";
+ }
+ }
+#endif
+
+ if(intrinsic)
+ return lp_build_intrinsic_binary(bld->builder, intrinsic, a, b);
+
+ if(type.floating)
+ cond = LLVMBuildFCmp(bld->builder, LLVMRealULT, a, b, "");
else
- return LLVMBuildSub(builder, a, b, "");
+ cond = LLVMBuildICmp(bld->builder, type.sign ? LLVMIntSLT : LLVMIntULT, a, b, "");
+ return LLVMBuildSelect(bld->builder, cond, b, a, "");
}
LLVMValueRef
-lp_build_mul(LLVMBuilderRef builder,
- LLVMValueRef a,
- LLVMValueRef b,
- LLVMValueRef zero,
- LLVMValueRef one)
+lp_build_comp(struct lp_build_context *bld,
+ LLVMValueRef a)
{
- if(a == zero)
- return zero;
- else if(a == one)
- return b;
- else if(b == zero)
- return zero;
- else if(b == one)
- return a;
- else if(LLVMIsConstant(a) && LLVMIsConstant(b))
- return LLVMConstMul(a, b);
+ const union lp_type type = bld->type;
+
+ if(a == bld->one)
+ return bld->zero;
+ if(a == bld->zero)
+ return bld->one;
+
+ if(type.norm && !type.floating && !type.fixed && !type.sign) {
+ if(LLVMIsConstant(a))
+ return LLVMConstNot(a);
+ else
+ return LLVMBuildNot(bld->builder, a, "");
+ }
+
+ if(LLVMIsConstant(a))
+ return LLVMConstSub(bld->one, a);
else
- return LLVMBuildMul(builder, a, b, "");
+ return LLVMBuildSub(bld->builder, bld->one, a, "");
}
LLVMValueRef
-lp_build_min(LLVMBuilderRef builder,
+lp_build_add(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef b)
{
- /* TODO: optimize the constant case */
-
-#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
+ const union lp_type type = bld->type;
+ LLVMValueRef res;
- return lp_build_intrinsic_binary(builder, "llvm.x86.sse.min.ps", a, b);
+ if(a == bld->zero)
+ return b;
+ if(b == bld->zero)
+ return a;
+ if(a == bld->undef || b == bld->undef)
+ return bld->undef;
-#else
+ if(bld->type.norm) {
+ const char *intrinsic = NULL;
- LLVMValueRef cond = LLVMBuildFCmp(values->builder, LLVMRealULT, a, b, "");
- return LLVMBuildSelect(values->builder, cond, a, b, "");
+ if(a == bld->one || b == bld->one)
+ return bld->one;
+#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
+ if(type.width * type.length == 128 &&
+ !type.floating && !type.fixed) {
+ if(type.width == 8)
+ intrinsic = type.sign ? "llvm.x86.sse2.adds.b" : "llvm.x86.sse2.addus.b";
+ if(type.width == 16)
+ intrinsic = type.sign ? "llvm.x86.sse2.adds.w" : "llvm.x86.sse2.addus.w";
+ }
#endif
+
+ if(intrinsic)
+ return lp_build_intrinsic_binary(bld->builder, intrinsic, a, b);
+ }
+
+ if(LLVMIsConstant(a) && LLVMIsConstant(b))
+ res = LLVMConstAdd(a, b);
+ else
+ res = LLVMBuildAdd(bld->builder, a, b, "");
+
+ if(bld->type.norm && (bld->type.floating || bld->type.fixed))
+ res = lp_build_min_simple(bld, res, bld->one);
+
+ return res;
}
LLVMValueRef
-lp_build_max(LLVMBuilderRef builder,
+lp_build_sub(struct lp_build_context *bld,
LLVMValueRef a,
LLVMValueRef b)
{
- /* TODO: optimize the constant case */
-
-#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
+ const union lp_type type = bld->type;
+ LLVMValueRef res;
- return lp_build_intrinsic_binary(builder, "llvm.x86.sse.max.ps", a, b);
+ if(b == bld->zero)
+ return a;
+ if(a == bld->undef || b == bld->undef)
+ return bld->undef;
+ if(a == b)
+ return bld->zero;
-#else
+ if(bld->type.norm) {
+ const char *intrinsic = NULL;
- LLVMValueRef cond = LLVMBuildFCmp(values->builder, LLVMRealULT, a, b, "");
- return LLVMBuildSelect(values->builder, cond, b, a, "");
+ if(b == bld->one)
+ return bld->zero;
+#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
+ if(type.width * type.length == 128 &&
+ !type.floating && !type.fixed) {
+ if(type.width == 8)
+ intrinsic = type.sign ? "llvm.x86.sse2.subs.b" : "llvm.x86.sse2.subus.b";
+ if(type.width == 16)
+ intrinsic = type.sign ? "llvm.x86.sse2.subs.w" : "llvm.x86.sse2.subus.w";
+ }
#endif
+
+ if(intrinsic)
+ return lp_build_intrinsic_binary(bld->builder, intrinsic, a, b);
+ }
+
+ if(LLVMIsConstant(a) && LLVMIsConstant(b))
+ res = LLVMConstSub(a, b);
+ else
+ res = LLVMBuildSub(bld->builder, a, b, "");
+
+ if(bld->type.norm && (bld->type.floating || bld->type.fixed))
+ res = lp_build_max_simple(bld, res, bld->zero);
+
+ return res;
}
LLVMValueRef
-lp_build_add_sat(LLVMBuilderRef builder,
- LLVMValueRef a,
- LLVMValueRef b,
- LLVMValueRef zero,
- LLVMValueRef one)
+lp_build_mul(struct lp_build_context *bld,
+ LLVMValueRef a,
+ LLVMValueRef b)
{
- if(a == zero)
+ if(a == bld->zero)
+ return bld->zero;
+ if(a == bld->one)
return b;
- else if(b == zero)
+ if(b == bld->zero)
+ return bld->zero;
+ if(b == bld->one)
return a;
- else if(a == one || b == one)
- return one;
- else
- return lp_build_min(builder, lp_build_add(builder, a, b, zero), one);
-}
+ if(a == bld->undef || b == bld->undef)
+ return bld->undef;
-LLVMValueRef
-lp_build_sub_sat(LLVMBuilderRef builder,
- LLVMValueRef a,
- LLVMValueRef b,
- LLVMValueRef zero,
- LLVMValueRef one)
-{
- if(b == zero)
- return a;
- else if(b == one)
- return zero;
- else
- return lp_build_max(builder, lp_build_sub(builder, a, b, zero), zero);
+ if(LLVMIsConstant(a) && LLVMIsConstant(b))
+ return LLVMConstMul(a, b);
+
+ return LLVMBuildMul(bld->builder, a, b, "");
}
+
LLVMValueRef
-lp_build_min_sat(LLVMBuilderRef builder,
- LLVMValueRef a,
- LLVMValueRef b,
- LLVMValueRef zero,
- LLVMValueRef one)
+lp_build_min(struct lp_build_context *bld,
+ LLVMValueRef a,
+ LLVMValueRef b)
{
- if(a == zero || b == zero)
- return zero;
- else if(a == one)
- return b;
- else if(b == one)
- return a;
- else
- return lp_build_min(builder, a, b);
+ if(a == bld->undef || b == bld->undef)
+ return bld->undef;
+
+ if(bld->type.norm) {
+ if(a == bld->zero || b == bld->zero)
+ return bld->zero;
+ if(a == bld->one)
+ return b;
+ if(b == bld->one)
+ return a;
+ }
+
+ return lp_build_min_simple(bld, a, b);
}
LLVMValueRef
-lp_build_max_sat(LLVMBuilderRef builder,
- LLVMValueRef a,
- LLVMValueRef b,
- LLVMValueRef zero,
- LLVMValueRef one)
+lp_build_max(struct lp_build_context *bld,
+ LLVMValueRef a,
+ LLVMValueRef b)
{
- if(a == zero)
- return b;
- else if(b == zero)
- return a;
- else if(a == one || b == one)
- return one;
- else
- return lp_build_max(builder, a, b);
+ if(a == bld->undef || b == bld->undef)
+ return bld->undef;
+
+ if(bld->type.norm) {
+ if(a == bld->one || b == bld->one)
+ return bld->one;
+ if(a == bld->zero)
+ return b;
+ if(b == bld->zero)
+ return a;
+ }
+
+ return lp_build_max_simple(bld, a, b);
}
/**
- * We may the same values several times, so we keep them here to avoid
- * recomputing them. Also reusing the values allows us to do simplifications
+ * We may the same bld several times, so we keep them here to avoid
+ * recomputing them. Also reusing the bld allows us to do simplifications
* that LLVM optimization passes wouldn't normally be able to do.
*/
-struct lp_build_blend_values
+struct lp_build_blend_context
{
- LLVMBuilderRef builder;
+ struct lp_build_context base;
- LLVMValueRef undef;
- LLVMValueRef zero;
- LLVMValueRef one;
-
LLVMValueRef src;
LLVMValueRef dst;
LLVMValueRef const_;
static LLVMValueRef
-lp_build_blend_factor_unswizzled(struct lp_build_blend_values *values,
+lp_build_blend_factor_unswizzled(struct lp_build_blend_context *bld,
unsigned factor,
boolean alpha)
{
switch (factor) {
case PIPE_BLENDFACTOR_ZERO:
- return values->zero;
+ return bld->base.zero;
case PIPE_BLENDFACTOR_ONE:
- return values->one;
+ return bld->base.one;
case PIPE_BLENDFACTOR_SRC_COLOR:
case PIPE_BLENDFACTOR_SRC_ALPHA:
- return values->src;
+ return bld->src;
case PIPE_BLENDFACTOR_DST_COLOR:
case PIPE_BLENDFACTOR_DST_ALPHA:
- return values->dst;
+ return bld->dst;
case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
if(alpha)
- return values->one;
+ return bld->base.one;
else {
- if(!values->inv_dst)
- values->inv_dst = lp_build_sub(values->builder, values->one, values->dst, values->zero);
- if(!values->saturate)
- values->saturate = lp_build_min_sat(values->builder, values->src, values->inv_dst, values->zero, values->one);
- return values->saturate;
+ if(!bld->inv_dst)
+ bld->inv_dst = lp_build_comp(&bld->base, bld->dst);
+ if(!bld->saturate)
+ bld->saturate = lp_build_min(&bld->base, bld->src, bld->inv_dst);
+ return bld->saturate;
}
case PIPE_BLENDFACTOR_CONST_COLOR:
case PIPE_BLENDFACTOR_CONST_ALPHA:
- return values->const_;
+ return bld->const_;
case PIPE_BLENDFACTOR_SRC1_COLOR:
case PIPE_BLENDFACTOR_SRC1_ALPHA:
/* TODO */
assert(0);
- return values->zero;
+ return bld->base.zero;
case PIPE_BLENDFACTOR_INV_SRC_COLOR:
case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
- if(!values->inv_src)
- values->inv_src = lp_build_sub(values->builder, values->one, values->src, values->zero);
- return values->inv_src;
+ if(!bld->inv_src)
+ bld->inv_src = lp_build_comp(&bld->base, bld->src);
+ return bld->inv_src;
case PIPE_BLENDFACTOR_INV_DST_COLOR:
case PIPE_BLENDFACTOR_INV_DST_ALPHA:
- if(!values->inv_dst)
- values->inv_dst = lp_build_sub(values->builder, values->one, values->dst, values->zero);
- return values->inv_dst;
+ if(!bld->inv_dst)
+ bld->inv_dst = lp_build_comp(&bld->base, bld->dst);
+ return bld->inv_dst;
case PIPE_BLENDFACTOR_INV_CONST_COLOR:
case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
- if(!values->inv_const)
- values->inv_const = lp_build_sub(values->builder, values->one, values->const_, values->zero);
- return values->inv_const;
+ if(!bld->inv_const)
+ bld->inv_const = lp_build_comp(&bld->base, bld->const_);
+ return bld->inv_const;
case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
/* TODO */
assert(0);
- return values->zero;
+ return bld->base.zero;
default:
assert(0);
- return values->zero;
+ return bld->base.zero;
}
}
static LLVMValueRef
-lp_build_blend_swizzle(struct lp_build_blend_values *values,
+lp_build_blend_swizzle(struct lp_build_blend_context *bld,
LLVMValueRef rgb,
LLVMValueRef alpha,
enum lp_build_blend_swizzle rgb_swizzle,
- unsigned alpha_swizzle,
- unsigned n)
+ unsigned alpha_swizzle)
{
+ const unsigned n = bld->base.type.length;
LLVMValueRef swizzles[LP_MAX_VECTOR_LENGTH];
unsigned i, j;
if(rgb_swizzle == LP_BUILD_BLEND_SWIZZLE_RGBA)
return rgb;
- alpha = values->undef;
+ alpha = bld->base.undef;
}
for(j = 0; j < n; j += 4) {
for(i = 0; i < 4; ++i) {
unsigned swizzle;
- if(i == alpha_swizzle && alpha != values->undef) {
+ if(i == alpha_swizzle && alpha != bld->base.undef) {
/* Take the alpha from the second shuffle argument */
swizzle = n + j + alpha_swizzle;
}
}
}
- return LLVMBuildShuffleVector(values->builder, rgb, alpha, LLVMConstVector(swizzles, n), "");
+ return LLVMBuildShuffleVector(bld->base.builder, rgb, alpha, LLVMConstVector(swizzles, n), "");
}
static LLVMValueRef
-lp_build_blend_factor(struct lp_build_blend_values *values,
+lp_build_blend_factor(struct lp_build_blend_context *bld,
LLVMValueRef factor1,
unsigned rgb_factor,
unsigned alpha_factor,
- unsigned alpha_swizzle,
- unsigned n)
+ unsigned alpha_swizzle)
{
LLVMValueRef rgb_factor_;
LLVMValueRef alpha_factor_;
LLVMValueRef factor2;
enum lp_build_blend_swizzle rgb_swizzle;
- rgb_factor_ = lp_build_blend_factor_unswizzled(values, rgb_factor, FALSE);
- alpha_factor_ = lp_build_blend_factor_unswizzled(values, alpha_factor, TRUE);
+ rgb_factor_ = lp_build_blend_factor_unswizzled(bld, rgb_factor, FALSE);
+ alpha_factor_ = lp_build_blend_factor_unswizzled(bld, alpha_factor, TRUE);
rgb_swizzle = lp_build_blend_factor_swizzle(rgb_factor);
- factor2 = lp_build_blend_swizzle(values, rgb_factor_, alpha_factor_, rgb_swizzle, alpha_swizzle, n);
+ factor2 = lp_build_blend_swizzle(bld, rgb_factor_, alpha_factor_, rgb_swizzle, alpha_swizzle);
- return lp_build_mul(values->builder, factor1, factor2, values->zero, values->one);
+ return lp_build_mul(&bld->base, factor1, factor2);
}
static LLVMValueRef
-lp_build_blend_func(struct lp_build_blend_values *values,
+lp_build_blend_func(struct lp_build_blend_context *bld,
unsigned func,
LLVMValueRef term1,
LLVMValueRef term2)
{
switch (func) {
case PIPE_BLEND_ADD:
- return lp_build_add_sat(values->builder, term1, term2, values->zero, values->one);
+ return lp_build_add(&bld->base, term1, term2);
break;
case PIPE_BLEND_SUBTRACT:
- return lp_build_sub_sat(values->builder, term1, term2, values->zero, values->one);
+ return lp_build_sub(&bld->base, term1, term2);
case PIPE_BLEND_REVERSE_SUBTRACT:
- return lp_build_sub_sat(values->builder, term2, term1, values->zero, values->one);
+ return lp_build_sub(&bld->base, term2, term1);
case PIPE_BLEND_MIN:
- return lp_build_min_sat(values->builder, term1, term2, values->zero, values->one);
+ return lp_build_min(&bld->base, term1, term2);
case PIPE_BLEND_MAX:
- return lp_build_max_sat(values->builder, term1, term2, values->zero, values->one);
+ return lp_build_max(&bld->base, term1, term2);
default:
assert(0);
- return values->zero;
+ return bld->base.zero;
}
}
LLVMValueRef const_,
unsigned alpha_swizzle)
{
- struct lp_build_blend_values values;
+ struct lp_build_blend_context bld;
LLVMValueRef src_term;
LLVMValueRef dst_term;
- LLVMTypeRef vec_type;
-
- vec_type = lp_build_vec_type(type);
- /*
- * Compute constants
- */
- memset(&values, 0, sizeof values);
- values.builder = builder;
- values.undef = LLVMGetUndef(vec_type);
- values.zero = LLVMConstNull(vec_type);
- values.one = lp_build_const_aos(type, 1.0, 1.0, 1.0, 1.0, NULL);
+ /* It makes no sense to blend unless values are normalized */
+ assert(type.norm);
- values.src = src;
- values.dst = dst;
- values.const_ = const_;
+ /* Setup build context */
+ memset(&bld, 0, sizeof bld);
+ bld.base.builder = builder;
+ bld.base.type = type;
+ bld.base.undef = lp_build_undef(type);
+ bld.base.zero = lp_build_zero(type);
+ bld.base.one = lp_build_one(type);
+ bld.src = src;
+ bld.dst = dst;
+ bld.const_ = const_;
/* TODO: There are still a few optimization oportunities here. For certain
* combinations it is possible to reorder the operations and therefor saving
* some instructions. */
- src_term = lp_build_blend_factor(&values, src, blend->rgb_src_factor, blend->alpha_src_factor, alpha_swizzle, type.length);
- dst_term = lp_build_blend_factor(&values, dst, blend->rgb_dst_factor, blend->alpha_dst_factor, alpha_swizzle, type.length);
+ src_term = lp_build_blend_factor(&bld, src, blend->rgb_src_factor, blend->alpha_src_factor, alpha_swizzle);
+ dst_term = lp_build_blend_factor(&bld, dst, blend->rgb_dst_factor, blend->alpha_dst_factor, alpha_swizzle);
if(blend->rgb_func == blend->alpha_func) {
- return lp_build_blend_func(&values, blend->rgb_func, src_term, dst_term);
+ return lp_build_blend_func(&bld, blend->rgb_func, src_term, dst_term);
}
else {
/* Seperate RGB / A functions */
LLVMValueRef rgb;
LLVMValueRef alpha;
- rgb = lp_build_blend_func(&values, blend->rgb_func, src_term, dst_term);
- alpha = lp_build_blend_func(&values, blend->alpha_func, src_term, dst_term);
+ rgb = lp_build_blend_func(&bld, blend->rgb_func, src_term, dst_term);
+ alpha = lp_build_blend_func(&bld, blend->alpha_func, src_term, dst_term);
- return lp_build_blend_swizzle(&values, rgb, alpha, LP_BUILD_BLEND_SWIZZLE_RGBA, alpha_swizzle, type.length);
+ return lp_build_blend_swizzle(&bld, rgb, alpha, LP_BUILD_BLEND_SWIZZLE_RGBA, alpha_swizzle);
}
}
projects / mesa.git / commitdiff