2 * Copyright © 2012 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
29 #include "compiler/nir/nir.h"
30 #include "compiler/brw_compiler.h"
39 * Binding table indices used by BLORP.
42 BLORP_RENDERBUFFER_BT_INDEX
,
43 BLORP_TEXTURE_BT_INDEX
,
47 struct brw_blorp_surface_info
52 struct blorp_address addr
;
54 struct isl_surf aux_surf
;
55 struct blorp_address aux_addr
;
56 enum isl_aux_usage aux_usage
;
58 union isl_color_value clear_color
;
62 /* Z offset into a 3-D texture or slice of a 2-D array texture. */
65 uint32_t tile_x_sa
, tile_y_sa
;
69 brw_blorp_surface_info_init(struct blorp_context
*blorp
,
70 struct brw_blorp_surface_info
*info
,
71 const struct blorp_surf
*surf
,
72 unsigned int level
, unsigned int layer
,
73 enum isl_format format
, bool is_render_target
);
76 struct brw_blorp_coord_transform
83 * Bounding rectangle telling pixel discard which pixels are not to be
84 * touched. This is needed in when surfaces are configured as something else
85 * what they really are:
87 * - writing W-tiled stencil as Y-tiled
88 * - writing interleaved multisampled as single sampled.
90 * See blorp_nir_discard_if_outside_rect().
92 struct brw_blorp_discard_rect
101 * Grid needed for blended and scaled blits of integer formats, see
102 * blorp_nir_manual_blend_bilinear().
104 struct brw_blorp_rect_grid
111 struct blorp_surf_offset
{
116 struct brw_blorp_wm_inputs
118 uint32_t clear_color
[4];
120 struct brw_blorp_discard_rect discard_rect
;
121 struct brw_blorp_rect_grid rect_grid
;
122 struct brw_blorp_coord_transform coord_transform
[2];
124 struct blorp_surf_offset src_offset
;
125 struct blorp_surf_offset dst_offset
;
127 /* Minimum layer setting works for all the textures types but texture_3d
128 * for which the setting has no effect. Use the z-coordinate instead.
132 /* Pad out to an integral number of registers */
136 #define BLORP_CREATE_NIR_INPUT(shader, name, type) ({ \
137 nir_variable *input = nir_variable_create((shader), nir_var_shader_in, \
139 if ((shader)->stage == MESA_SHADER_FRAGMENT) \
140 input->data.interpolation = INTERP_MODE_FLAT; \
141 input->data.location = VARYING_SLOT_VAR0 + \
142 offsetof(struct brw_blorp_wm_inputs, name) / (4 * sizeof(float)); \
143 input->data.location_frac = \
144 (offsetof(struct brw_blorp_wm_inputs, name) / sizeof(float)) % 4; \
148 struct blorp_vs_inputs
{
150 uint32_t _instance_id
; /* Set in hardware by SGVS */
154 static inline unsigned
155 brw_blorp_get_urb_length(const struct brw_wm_prog_data
*prog_data
)
157 if (prog_data
== NULL
)
160 /* From the BSpec: 3D Pipeline - Strips and Fans - 3DSTATE_SBE
162 * read_length = ceiling((max_source_attr+1)/2)
164 return MAX2((prog_data
->num_varying_inputs
+ 1) / 2, 1);
174 uint8_t stencil_mask
;
176 struct brw_blorp_surface_info depth
;
177 struct brw_blorp_surface_info stencil
;
178 uint32_t depth_format
;
179 struct brw_blorp_surface_info src
;
180 struct brw_blorp_surface_info dst
;
181 enum blorp_hiz_op hiz_op
;
182 enum blorp_fast_clear_op fast_clear_op
;
183 bool color_write_disable
[4];
184 struct brw_blorp_wm_inputs wm_inputs
;
185 struct blorp_vs_inputs vs_inputs
;
186 unsigned num_samples
;
187 unsigned num_draw_buffers
;
189 uint32_t vs_prog_kernel
;
190 struct brw_vs_prog_data
*vs_prog_data
;
191 uint32_t wm_prog_kernel
;
192 struct brw_wm_prog_data
*wm_prog_data
;
194 bool use_pre_baked_binding_table
;
195 uint32_t pre_baked_binding_table_offset
;
198 void blorp_params_init(struct blorp_params
*params
);
200 enum blorp_shader_type
{
201 BLORP_SHADER_TYPE_BLIT
,
202 BLORP_SHADER_TYPE_CLEAR
,
203 BLORP_SHADER_TYPE_LAYER_OFFSET_VS
,
206 struct brw_blorp_blit_prog_key
208 enum blorp_shader_type shader_type
; /* Must be BLORP_SHADER_TYPE_BLIT */
210 /* Number of samples per pixel that have been configured in the surface
211 * state for texturing from.
213 unsigned tex_samples
;
215 /* MSAA layout that has been configured in the surface state for texturing
218 enum isl_msaa_layout tex_layout
;
220 enum isl_aux_usage tex_aux_usage
;
222 /* Actual number of samples per pixel in the source image. */
223 unsigned src_samples
;
225 /* Actual MSAA layout used by the source image. */
226 enum isl_msaa_layout src_layout
;
228 /* Number of bits per channel in the source image. */
231 /* Number of samples per pixel that have been configured in the render
236 /* MSAA layout that has been configured in the render target. */
237 enum isl_msaa_layout rt_layout
;
239 /* Actual number of samples per pixel in the destination image. */
240 unsigned dst_samples
;
242 /* Actual MSAA layout used by the destination image. */
243 enum isl_msaa_layout dst_layout
;
245 /* Number of bits per channel in the destination image. */
248 /* Type of the data to be read from the texture (one of
249 * nir_type_(int|uint|float)).
251 nir_alu_type texture_data_type
;
253 /* True if the source image is W tiled. If true, the surface state for the
254 * source image must be configured as Y tiled, and tex_samples must be 0.
258 /* True if the destination image is W tiled. If true, the surface state
259 * for the render target must be configured as Y tiled, and rt_samples must
264 /* True if the destination is an RGB format. If true, the surface state
265 * for the render target must be configured as red with three times the
266 * normal width. We need to do this because you cannot render to
267 * non-power-of-two formats.
271 /* True if all source samples should be blended together to produce each
272 * destination pixel. If true, src_tiled_w must be false, tex_samples must
273 * equal src_samples, and tex_samples must be nonzero.
277 /* True if the rectangle being sent through the rendering pipeline might be
278 * larger than the destination rectangle, so the WM program should kill any
279 * pixels that are outside the destination rectangle.
284 * True if the WM program should be run in MSDISPMODE_PERSAMPLE with more
285 * than one sample per pixel.
287 bool persample_msaa_dispatch
;
289 /* True for scaled blitting. */
292 /* True if this blit operation may involve intratile offsets on the source.
293 * In this case, we need to add the offset before texturing.
295 bool need_src_offset
;
297 /* True if this blit operation may involve intratile offsets on the
298 * destination. In this case, we need to add the offset to gl_FragCoord.
300 bool need_dst_offset
;
302 /* Scale factors between the pixel grid and the grid of samples. We're
303 * using grid of samples for bilinear filetring in multisample scaled blits.
308 /* True for blits with filter = GL_LINEAR. */
309 bool bilinear_filter
;
313 * \name BLORP internals
316 * Used internally by gen6_blorp_exec() and gen7_blorp_exec().
319 void brw_blorp_init_wm_prog_key(struct brw_wm_prog_key
*wm_key
);
322 blorp_compile_fs(struct blorp_context
*blorp
, void *mem_ctx
,
323 struct nir_shader
*nir
,
324 const struct brw_wm_prog_key
*wm_key
,
326 struct brw_wm_prog_data
*wm_prog_data
,
327 unsigned *program_size
);
330 blorp_compile_vs(struct blorp_context
*blorp
, void *mem_ctx
,
331 struct nir_shader
*nir
,
332 struct brw_vs_prog_data
*vs_prog_data
,
333 unsigned *program_size
);
338 } /* end extern "C" */
339 #endif /* __cplusplus */
341 #endif /* BLORP_PRIV_H */