diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_blorp.h | 5 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_blorp_blit.cpp | 61 |
2 files changed, 55 insertions, 11 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_blorp.h b/src/mesa/drivers/dri/i965/brw_blorp.h index 053eef74071..9af492d08bf 100644 --- a/src/mesa/drivers/dri/i965/brw_blorp.h +++ b/src/mesa/drivers/dri/i965/brw_blorp.h @@ -223,6 +223,11 @@ struct brw_blorp_blit_prog_key /* Actual MSAA layout used by the destination image. */ intel_msaa_layout dst_layout; + /* Type of the data to be read from the texture (one of + * BRW_REGISTER_TYPE_{UD,D,F}). + */ + unsigned texture_data_type; + /* True if the source image is W tiled. If true, the surface state for the * source image must be configured as Y tiled, and tex_samples must be 0. */ diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp index 74ae52d3d89..32fd48e2061 100644 --- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp +++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp @@ -696,7 +696,9 @@ brw_blorp_blit_program::alloc_regs() alloc_push_const_regs(reg); reg += BRW_BLORP_NUM_PUSH_CONST_REGS; for (unsigned i = 0; i < ARRAY_SIZE(texture_data); ++i) { - this->texture_data[i] = vec16(brw_vec8_grf(reg, 0)); reg += 8; + this->texture_data[i] = + retype(vec16(brw_vec8_grf(reg, 0)), key->texture_data_type); + reg += 8; } this->mcs_data = retype(brw_vec8_grf(reg, 0), BRW_REGISTER_TYPE_UD); reg += 8; @@ -1117,7 +1119,16 @@ brw_blorp_blit_program::manual_blend() * operations we do is equal to the number of trailing 1 bits in i. This * works provided the total number of samples is a power of two, which it * always is for i965. + * + * For integer formats, we replace the add operations with average + * operations and skip the final division. */ + typedef struct brw_instruction *(*brw_op2_ptr)(struct brw_compile *, + struct brw_reg, + struct brw_reg, + struct brw_reg); + brw_op2_ptr combine_op = + key->texture_data_type == BRW_REGISTER_TYPE_F ? brw_ADD : brw_AVG; unsigned stack_depth = 0; for (int i = 0; i < num_samples; ++i) { assert(stack_depth == _mesa_bitcount(i)); /* Loop invariant */ @@ -1139,9 +1150,9 @@ brw_blorp_blit_program::manual_blend() /* TODO: should use a smaller loop bound for non_RGBA formats */ for (int k = 0; k < 4; ++k) { - brw_ADD(&func, offset(texture_data[stack_depth - 1], 2*k), - offset(vec8(texture_data[stack_depth - 1]), 2*k), - offset(vec8(texture_data[stack_depth]), 2*k)); + combine_op(&func, offset(texture_data[stack_depth - 1], 2*k), + offset(vec8(texture_data[stack_depth - 1]), 2*k), + offset(vec8(texture_data[stack_depth]), 2*k)); } } } @@ -1149,12 +1160,14 @@ brw_blorp_blit_program::manual_blend() /* We should have just 1 sample on the stack now. */ assert(stack_depth == 1); - /* Scale the result down by a factor of num_samples */ - /* TODO: should use a smaller loop bound for non-RGBA formats */ - for (int j = 0; j < 4; ++j) { - brw_MUL(&func, offset(texture_data[0], 2*j), - offset(vec8(texture_data[0]), 2*j), - brw_imm_f(1.0/num_samples)); + if (key->texture_data_type == BRW_REGISTER_TYPE_F) { + /* Scale the result down by a factor of num_samples */ + /* TODO: should use a smaller loop bound for non-RGBA formats */ + for (int j = 0; j < 4; ++j) { + brw_MUL(&func, offset(texture_data[0], 2*j), + offset(vec8(texture_data[0]), 2*j), + brw_imm_f(1.0/num_samples)); + } } } @@ -1319,7 +1332,8 @@ brw_blorp_blit_program::texture_lookup(struct brw_reg dst, void brw_blorp_blit_program::render_target_write() { - struct brw_reg mrf_rt_write = vec16(brw_message_reg(base_mrf)); + struct brw_reg mrf_rt_write = + retype(vec16(brw_message_reg(base_mrf)), key->texture_data_type); int mrf_offset = 0; /* If we may have killed pixels, then we need to send R0 and R1 in a header @@ -1427,6 +1441,31 @@ brw_blorp_blit_params::brw_blorp_blit_params(struct brw_context *brw, use_wm_prog = true; memset(&wm_prog_key, 0, sizeof(wm_prog_key)); + /* texture_data_type indicates the register type that should be used to + * manipulate texture data. + */ + switch (_mesa_get_format_datatype(src_mt->format)) { + case GL_UNSIGNED_NORMALIZED: + case GL_SIGNED_NORMALIZED: + case GL_FLOAT: + wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_F; + break; + case GL_UNSIGNED_INT: + if (src_mt->format == MESA_FORMAT_S8) { + /* We process stencil as though it's an unsigned normalized color */ + wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_F; + } else { + wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_UD; + } + break; + case GL_INT: + wm_prog_key.texture_data_type = BRW_REGISTER_TYPE_D; + break; + default: + assert(!"Unrecognized blorp format"); + break; + } + if (brw->intel.gen > 6) { /* Gen7's texturing hardware only supports the IMS layout with the * ld2dms instruction (which blorp doesn't use). So if the source is |