| /* |
| * Copyright © 2012 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| */ |
| |
| #include "main/blend.h" |
| #include "main/mtypes.h" |
| #include "main/samplerobj.h" |
| #include "main/texformat.h" |
| #include "main/teximage.h" |
| #include "program/prog_parameter.h" |
| #include "program/prog_instruction.h" |
| |
| #include "intel_mipmap_tree.h" |
| #include "intel_batchbuffer.h" |
| #include "intel_tex.h" |
| #include "intel_fbo.h" |
| #include "intel_buffer_objects.h" |
| #include "intel_image.h" |
| |
| #include "brw_context.h" |
| #include "brw_state.h" |
| #include "brw_defines.h" |
| #include "brw_wm.h" |
| #include "isl/isl.h" |
| |
| static uint32_t * |
| gen8_allocate_surface_state(struct brw_context *brw, |
| uint32_t *out_offset, int index) |
| { |
| int dwords = brw->gen >= 9 ? 16 : 13; |
| uint32_t *surf = __brw_state_batch(brw, AUB_TRACE_SURFACE_STATE, |
| dwords * 4, 64, index, out_offset); |
| memset(surf, 0, dwords * 4); |
| return surf; |
| } |
| |
| /** |
| * Creates a null surface. |
| * |
| * This is used when the shader doesn't write to any color output. An FB |
| * write to target 0 will still be emitted, because that's how the thread is |
| * terminated (and computed depth is returned), so we need to have the |
| * hardware discard the target 0 color output.. |
| */ |
| static void |
| gen8_emit_null_surface_state(struct brw_context *brw, |
| unsigned width, |
| unsigned height, |
| unsigned samples, |
| uint32_t *out_offset) |
| { |
| uint32_t *surf = gen8_allocate_surface_state(brw, out_offset, -1); |
| |
| surf[0] = BRW_SURFACE_NULL << BRW_SURFACE_TYPE_SHIFT | |
| BRW_SURFACEFORMAT_B8G8R8A8_UNORM << BRW_SURFACE_FORMAT_SHIFT | |
| GEN8_SURFACE_TILING_Y; |
| surf[2] = SET_FIELD(width - 1, GEN7_SURFACE_WIDTH) | |
| SET_FIELD(height - 1, GEN7_SURFACE_HEIGHT); |
| } |
| |
| void |
| gen8_init_vtable_surface_functions(struct brw_context *brw) |
| { |
| brw->vtbl.update_renderbuffer_surface = brw_update_renderbuffer_surface; |
| brw->vtbl.emit_null_surface_state = gen8_emit_null_surface_state; |
| } |