From 1df17fc697246e487ca6b60200e178837be5ce7a Mon Sep 17 00:00:00 2001 From: Charmaine Lee Date: Fri, 5 May 2017 14:24:53 -0700 Subject: [PATCH] svga: add support for TXL2 opcode This patch adds support for cubemap array texture lookup with explicit LOD. Fixes piglit test arb_texture_cube_map_array-cubemap-lod Reviewed-by: Neha Bhende Reviewed-by: Brian Paul --- src/gallium/drivers/svga/svga_tgsi_vgpu10.c | 46 +++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/src/gallium/drivers/svga/svga_tgsi_vgpu10.c b/src/gallium/drivers/svga/svga_tgsi_vgpu10.c index e7a636f1740..2c857440f63 100644 --- a/src/gallium/drivers/svga/svga_tgsi_vgpu10.c +++ b/src/gallium/drivers/svga/svga_tgsi_vgpu10.c @@ -5323,6 +5323,50 @@ emit_txl_txb(struct svga_shader_emitter_v10 *emit, } +/** + * Emit code for TGSI_OPCODE_TXL2 (explicit LOD) for cubemap array. + */ +static boolean +emit_txl2(struct svga_shader_emitter_v10 *emit, + const struct tgsi_full_instruction *inst) +{ + unsigned target = inst->Texture.Texture; + unsigned opcode, unit; + int offsets[3]; + struct tgsi_full_src_register coord, lod; + struct tex_swizzle_info swz_info; + + assert(inst->Instruction.Opcode == TGSI_OPCODE_TXL2); + + lod = scalar_src(&inst->Src[1], TGSI_SWIZZLE_X); + unit = inst->Src[2].Register.Index; + + begin_tex_swizzle(emit, unit, inst, tgsi_is_shadow_target(target), + &swz_info); + + get_texel_offsets(emit, inst, offsets); + + coord = setup_texcoord(emit, unit, &inst->Src[0]); + + /* SAMPLE_L dst, coord(s0), resource, sampler, lod(s3) */ + begin_emit_instruction(emit); + opcode = VGPU10_OPCODE_SAMPLE_L; + emit_sample_opcode(emit, opcode, inst->Instruction.Saturate, offsets); + emit_dst_register(emit, get_tex_swizzle_dst(&swz_info)); + emit_src_register(emit, &coord); + emit_resource_register(emit, unit); + emit_sampler_register(emit, unit); + emit_src_register(emit, &lod); + end_emit_instruction(emit); + + end_tex_swizzle(emit, &swz_info); + + free_temp_indexes(emit); + + return TRUE; +} + + /** * Emit code for TGSI_OPCODE_TXQ (texture query) instruction. */ @@ -5588,6 +5632,8 @@ emit_vgpu10_instruction(struct svga_shader_emitter_v10 *emit, return emit_txd(emit, inst); case TGSI_OPCODE_TXF: return emit_txf(emit, inst); + case TGSI_OPCODE_TXL2: + return emit_txl2(emit, inst); case TGSI_OPCODE_TXQ: return emit_txq(emit, inst); case TGSI_OPCODE_UIF: -- 2.30.2