ac/llvm: add support for texturing with clamped LOD

[mesa.git] / src / amd / llvm / ac_llvm_build.c

diff --git a/src/amd/llvm/ac_llvm_build.c b/src/amd/llvm/ac_llvm_build.c
index 0066a885c9573b7e4b867dc0a7fccd8f3a96827b..ebcb91bd4b3374c02d1bb60e19773d15c4822cdd 100644 (file)
--- a/src/amd/llvm/ac_llvm_build.c
+++ b/src/amd/llvm/ac_llvm_build.c
@@ -2373,6 +2373,9 @@ LLVMValueRef ac_build_image_opcode(struct ac_llvm_context *ctx,
               (a->lod ? 1 : 0) +
               (a->level_zero ? 1 : 0) +
               (a->derivs[0] ? 1 : 0) <= 1);
               (a->lod ? 1 : 0) +
               (a->level_zero ? 1 : 0) +
               (a->derivs[0] ? 1 : 0) <= 1);

+       assert((a->min_lod ? 1 : 0) +
+              (a->lod ? 1 : 0) +
+              (a->level_zero ? 1 : 0) <= 1);

 
        if (a->opcode == ac_image_get_lod) {
                switch (dim) {
 
        if (a->opcode == ac_image_get_lod) {
                switch (dim) {


@@ -2428,6 +2431,9 @@ LLVMValueRef ac_build_image_opcode(struct ac_llvm_context *ctx,
                args[num_args++] = LLVMBuildBitCast(ctx->builder, a->coords[i], coord_type, "");
        if (a->lod)
                args[num_args++] = LLVMBuildBitCast(ctx->builder, a->lod, coord_type, "");
                args[num_args++] = LLVMBuildBitCast(ctx->builder, a->coords[i], coord_type, "");
        if (a->lod)
                args[num_args++] = LLVMBuildBitCast(ctx->builder, a->lod, coord_type, "");

+       if (a->min_lod)
+               args[num_args++] = LLVMBuildBitCast(ctx->builder, a->min_lod, coord_type, "");
+

        overload[num_overloads++] = sample ? ".f32" : ".i32";
 
        args[num_args++] = a->resource;
        overload[num_overloads++] = sample ? ".f32" : ".i32";
 
        args[num_args++] = a->resource;


@@ -2481,7 +2487,7 @@ LLVMValueRef ac_build_image_opcode(struct ac_llvm_context *ctx,
        char intr_name[96];
        snprintf(intr_name, sizeof(intr_name),
                 "llvm.amdgcn.image.%s%s" /* base name */
        char intr_name[96];
        snprintf(intr_name, sizeof(intr_name),
                 "llvm.amdgcn.image.%s%s" /* base name */

-                "%s%s%s" /* sample/gather modifiers */
+                "%s%s%s%s" /* sample/gather modifiers */

                 ".%s.%s%s%s%s", /* dimension and type overloads */
                 name, atomic_subop,
                 a->compare ? ".c" : "",
                 ".%s.%s%s%s%s", /* dimension and type overloads */
                 name, atomic_subop,
                 a->compare ? ".c" : "",


@@ -2489,6 +2495,7 @@ LLVMValueRef ac_build_image_opcode(struct ac_llvm_context *ctx,
                 lod_suffix ? ".l" :
                 a->derivs[0] ? ".d" :
                 a->level_zero ? ".lz" : "",
                 lod_suffix ? ".l" :
                 a->derivs[0] ? ".d" :
                 a->level_zero ? ".lz" : "",

+                a->min_lod ? ".cl" : "",

                 a->offset ? ".o" : "",
                 dimname,
                 atomic ? "i32" : "v4f32",
                 a->offset ? ".o" : "",
                 dimname,
                 atomic ? "i32" : "v4f32",