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| author | Francisco Jerez <currojerez@riseup.net> | 2016-07-21 16:55:45 -0700 |
|---|---|---|
| committer | Francisco Jerez <currojerez@riseup.net> | 2016-08-25 18:36:08 -0700 |
| commit | db123df74773f458e573a9c034ee783570a3ed0f (patch) | |
| tree | 319beb2ac3fcc3f2c5cf12d9294e0ba0f72d0acb /src/mesa/drivers/dri/i965/brw_fs.cpp | |
| parent | f2f75b0cf05d2519d618c71b19d2187b8ed0d545 (diff) | |
| download | external_mesa3d-db123df74773f458e573a9c034ee783570a3ed0f.zip external_mesa3d-db123df74773f458e573a9c034ee783570a3ed0f.tar.gz external_mesa3d-db123df74773f458e573a9c034ee783570a3ed0f.tar.bz2 | |
i965/fs: Define logical framebuffer read opcode and lower it to physical reads.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_fs.cpp')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs.cpp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index cfbd66d..80c2e5f 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -3826,6 +3826,23 @@ lower_fb_write_logical_send(const fs_builder &bld, fs_inst *inst, } static void +lower_fb_read_logical_send(const fs_builder &bld, fs_inst *inst) +{ + const fs_builder &ubld = bld.exec_all(); + const unsigned length = 2; + const fs_reg header = ubld.group(8, 0).vgrf(BRW_REGISTER_TYPE_UD, length); + + ubld.group(16, 0) + .MOV(header, retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UD)); + + inst->resize_sources(1); + inst->src[0] = header; + inst->opcode = FS_OPCODE_FB_READ; + inst->mlen = length; + inst->header_size = length; +} + +static void lower_sampler_logical_send_gen4(const fs_builder &bld, fs_inst *inst, opcode op, const fs_reg &coordinate, const fs_reg &shadow_c, @@ -4418,6 +4435,10 @@ fs_visitor::lower_logical_sends() payload); break; + case FS_OPCODE_FB_READ_LOGICAL: + lower_fb_read_logical_send(ibld, inst); + break; + case SHADER_OPCODE_TEX_LOGICAL: lower_sampler_logical_send(ibld, inst, SHADER_OPCODE_TEX); break; @@ -4912,6 +4933,9 @@ get_lowered_simd_width(const struct brw_device_info *devinfo, return (inst->src[FB_WRITE_LOGICAL_SRC_COLOR1].file != BAD_FILE ? 8 : MIN2(16, inst->exec_size)); + case FS_OPCODE_FB_READ_LOGICAL: + return MIN2(16, inst->exec_size); + case SHADER_OPCODE_TEX_LOGICAL: case SHADER_OPCODE_TXF_CMS_LOGICAL: case SHADER_OPCODE_TXF_UMS_LOGICAL: |