radeonsi: implement ARB_texture_cube_map_array

No LLVM changes needed.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
v2: updated GL3.txt and relnotes

diff --git a/docs/GL3.txt b/docs/GL3.txt
index ae1dfd6..c360f2c 100644 (file)
--- a/docs/GL3.txt
+++ b/docs/GL3.txt
@@ -118,7 +118,7 @@ GL 4.0:
   GL_ARB_shader_subroutine                             not started
   GL_ARB_tessellation_shader                           not started
   GL_ARB_texture_buffer_object_rgb32                   DONE (i965, nvc0, r600, radeonsi, softpipe)
-  GL_ARB_texture_cube_map_array                        DONE (i965, nv50, nvc0, r600, softpipe)
+  GL_ARB_texture_cube_map_array                        DONE (i965, nv50, nvc0, r600, radeonsi, softpipe)
   GL_ARB_texture_gather                                DONE (i965, nv50, nvc0)
   GL_ARB_transform_feedback2                           DONE (i965, nv50, nvc0, r600, radeonsi)
   GL_ARB_transform_feedback3                           DONE (i965, nv50, nvc0, r600, radeonsi)

diff --git a/docs/relnotes/10.3.html b/docs/relnotes/10.3.html
index aebc3ff..6bb9e79 100644 (file)
--- a/docs/relnotes/10.3.html
+++ b/docs/relnotes/10.3.html
@@ -45,6 +45,7 @@ Note: some of the new features are only available with certain drivers.
 
 <ul>
 <li>GL_ARB_stencil_texturing on nv50, nvc0, r600, and radeonsi</li>
+<li>GL_ARB_texture_cube_map_array on radeonsi</li>
 </ul>
 
 

diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index 873115b..24068e3 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -209,6 +209,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
         case PIPE_CAP_TGSI_VS_LAYER:
        case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
        case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
+       case PIPE_CAP_CUBE_MAP_ARRAY:
                return 1;
 
        case PIPE_CAP_TEXTURE_MULTISAMPLE:
@@ -237,7 +238,6 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
        case PIPE_CAP_VERTEX_COLOR_CLAMPED:
        case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
        case PIPE_CAP_USER_VERTEX_BUFFERS:
-       case PIPE_CAP_CUBE_MAP_ARRAY:
        case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
        case PIPE_CAP_TEXTURE_GATHER_SM5:
        case PIPE_CAP_TGSI_TEXCOORD:

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 0d070d3..a27f7f8 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1539,8 +1539,13 @@ static void tex_fetch_args(
        /* Pack LOD bias value */
        if (opcode == TGSI_OPCODE_TXB)
                address[count++] = coords[3];
+       if (opcode == TGSI_OPCODE_TXB2)
+               address[count++] = lp_build_emit_fetch(bld_base, inst, 1, 0);
 
-       if (target == TGSI_TEXTURE_CUBE || target == TGSI_TEXTURE_SHADOWCUBE)
+       if (target == TGSI_TEXTURE_CUBE ||
+           target == TGSI_TEXTURE_CUBE_ARRAY ||
+           target == TGSI_TEXTURE_SHADOWCUBE ||
+           target == TGSI_TEXTURE_SHADOWCUBE_ARRAY)
                radeon_llvm_emit_prepare_cube_coords(bld_base, emit_data, coords);
 
        /* Pack depth comparison value */
@@ -1577,6 +1582,8 @@ static void tex_fetch_args(
        /* Pack LOD or sample index */
        if (opcode == TGSI_OPCODE_TXL || opcode == TGSI_OPCODE_TXF)
                address[count++] = coords[3];
+       if (opcode == TGSI_OPCODE_TXL2)
+               address[count++] = lp_build_emit_fetch(bld_base, inst, 1, 0);
 
        if (count > 16) {
                assert(!"Cannot handle more than 16 texture address parameters");
@@ -1732,6 +1739,13 @@ static void tex_fetch_args(
                emit_data->arg_count = 4;
        }
 
+       /* The fetch opcode has been converted to a 2D array fetch.
+        * This simplifies the LLVM backend. */
+       if (target == TGSI_TEXTURE_CUBE_ARRAY)
+               target = TGSI_TEXTURE_2D_ARRAY;
+       else if (target == TGSI_TEXTURE_SHADOWCUBE_ARRAY)
+               target = TGSI_TEXTURE_SHADOW2D_ARRAY;
+
        /* Dimensions */
        emit_data->args[emit_data->arg_count - 1] =
                lp_build_const_int32(bld_base->base.gallivm, target);
@@ -1775,8 +1789,9 @@ static void txq_fetch_args(
        struct si_shader_context *si_shader_ctx = si_shader_context(bld_base);
        const struct tgsi_full_instruction *inst = emit_data->inst;
        struct gallivm_state *gallivm = bld_base->base.gallivm;
+       unsigned target = inst->Texture.Texture;
 
-       if (inst->Texture.Texture == TGSI_TEXTURE_BUFFER) {
+       if (target == TGSI_TEXTURE_BUFFER) {
                LLVMTypeRef i32 = LLVMInt32TypeInContext(gallivm->context);
                LLVMTypeRef v8i32 = LLVMVectorType(i32, 8);
 
@@ -1795,7 +1810,11 @@ static void txq_fetch_args(
        /* Resource */
        emit_data->args[1] = si_shader_ctx->resources[inst->Src[1].Register.Index];
 
-       /* Dimensions */
+       /* Texture target */
+       if (target == TGSI_TEXTURE_CUBE_ARRAY ||
+           target == TGSI_TEXTURE_SHADOWCUBE_ARRAY)
+               target = TGSI_TEXTURE_2D_ARRAY;
+
        emit_data->args[2] = lp_build_const_int32(bld_base->base.gallivm,
                                                  inst->Texture.Texture);
 
@@ -1810,13 +1829,30 @@ static void build_txq_intrinsic(const struct lp_build_tgsi_action * action,
                                struct lp_build_tgsi_context * bld_base,
                                struct lp_build_emit_data * emit_data)
 {
-       if (emit_data->inst->Texture.Texture == TGSI_TEXTURE_BUFFER) {
+       unsigned target = emit_data->inst->Texture.Texture;
+
+       if (target == TGSI_TEXTURE_BUFFER) {
                /* Just return the buffer size. */
                emit_data->output[emit_data->chan] = emit_data->args[0];
                return;
        }
 
        build_tgsi_intrinsic_nomem(action, bld_base, emit_data);
+
+       /* Divide the number of layers by 6 to get the number of cubes. */
+       if (target == TGSI_TEXTURE_CUBE_ARRAY ||
+           target == TGSI_TEXTURE_SHADOWCUBE_ARRAY) {
+               LLVMBuilderRef builder = bld_base->base.gallivm->builder;
+               LLVMValueRef two = lp_build_const_int32(bld_base->base.gallivm, 2);
+               LLVMValueRef six = lp_build_const_int32(bld_base->base.gallivm, 6);
+
+               LLVMValueRef v4 = emit_data->output[emit_data->chan];
+               LLVMValueRef z = LLVMBuildExtractElement(builder, v4, two, "");
+               z = LLVMBuildSDiv(builder, z, six, "");
+
+               emit_data->output[emit_data->chan] =
+                       LLVMBuildInsertElement(builder, v4, z, two, "");
+       }
 }
 
 #if HAVE_LLVM >= 0x0304
@@ -2496,12 +2532,15 @@ int si_pipe_shader_create(
        bld_base->emit_fetch_funcs[TGSI_FILE_CONSTANT] = fetch_constant;
 
        bld_base->op_actions[TGSI_OPCODE_TEX] = tex_action;
+       bld_base->op_actions[TGSI_OPCODE_TEX2] = tex_action;
        bld_base->op_actions[TGSI_OPCODE_TXB] = txb_action;
+       bld_base->op_actions[TGSI_OPCODE_TXB2] = txb_action;
 #if HAVE_LLVM >= 0x0304
        bld_base->op_actions[TGSI_OPCODE_TXD] = txd_action;
 #endif
        bld_base->op_actions[TGSI_OPCODE_TXF] = txf_action;
        bld_base->op_actions[TGSI_OPCODE_TXL] = txl_action;
+       bld_base->op_actions[TGSI_OPCODE_TXL2] = txl_action;
        bld_base->op_actions[TGSI_OPCODE_TXP] = tex_action;
        bld_base->op_actions[TGSI_OPCODE_TXQ] = txq_action;
 

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index 6d5408b..d25dc60 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -1312,6 +1312,7 @@ static unsigned si_tex_dim(unsigned dim, unsigned nr_samples)
        case PIPE_TEXTURE_3D:
                return V_008F1C_SQ_RSRC_IMG_3D;
        case PIPE_TEXTURE_CUBE:
+       case PIPE_TEXTURE_CUBE_ARRAY:
                return V_008F1C_SQ_RSRC_IMG_CUBE;
        }
 }
@@ -2477,7 +2478,8 @@ static struct pipe_sampler_view *si_create_sampler_view(struct pipe_context *ctx
                depth = texture->array_size;
        } else if (texture->target == PIPE_TEXTURE_2D_ARRAY) {
                depth = texture->array_size;
-       }
+       } else if (texture->target == PIPE_TEXTURE_CUBE_ARRAY)
+               depth = texture->array_size / 6;
 
        va = r600_resource_va(ctx->screen, texture);
        va += surflevel[0].offset;