mesa/src/gallium/drivers/v3d/v3d_blit.c

870 lines
34 KiB
C

/*
* Copyright © 2015-2017 Broadcom
*
* 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 "util/format/u_format.h"
#include "util/u_surface.h"
#include "util/u_blitter.h"
#include "compiler/nir/nir_builder.h"
#include "v3d_context.h"
#include "broadcom/common/v3d_tiling.h"
#include "broadcom/common/v3d_tfu.h"
/**
* The param @op_blit is used to tell if we are saving state for blitter_blit
* (if true) or blitter_clear (if false). If other blitter functions are used
* that require different state we may need something more elaborated than
* this.
*/
void
v3d_blitter_save(struct v3d_context *v3d, bool op_blit)
{
util_blitter_save_fragment_constant_buffer_slot(v3d->blitter,
v3d->constbuf[PIPE_SHADER_FRAGMENT].cb);
util_blitter_save_vertex_buffer_slot(v3d->blitter, v3d->vertexbuf.vb);
util_blitter_save_vertex_elements(v3d->blitter, v3d->vtx);
util_blitter_save_vertex_shader(v3d->blitter, v3d->prog.bind_vs);
util_blitter_save_geometry_shader(v3d->blitter, v3d->prog.bind_gs);
util_blitter_save_so_targets(v3d->blitter, v3d->streamout.num_targets,
v3d->streamout.targets);
util_blitter_save_rasterizer(v3d->blitter, v3d->rasterizer);
util_blitter_save_viewport(v3d->blitter, &v3d->viewport);
util_blitter_save_fragment_shader(v3d->blitter, v3d->prog.bind_fs);
util_blitter_save_blend(v3d->blitter, v3d->blend);
util_blitter_save_depth_stencil_alpha(v3d->blitter, v3d->zsa);
util_blitter_save_stencil_ref(v3d->blitter, &v3d->stencil_ref);
util_blitter_save_sample_mask(v3d->blitter, v3d->sample_mask, 0);
util_blitter_save_so_targets(v3d->blitter, v3d->streamout.num_targets,
v3d->streamout.targets);
if (op_blit) {
util_blitter_save_scissor(v3d->blitter, &v3d->scissor);
util_blitter_save_framebuffer(v3d->blitter, &v3d->framebuffer);
util_blitter_save_fragment_sampler_states(v3d->blitter,
v3d->tex[PIPE_SHADER_FRAGMENT].num_samplers,
(void **)v3d->tex[PIPE_SHADER_FRAGMENT].samplers);
util_blitter_save_fragment_sampler_views(v3d->blitter,
v3d->tex[PIPE_SHADER_FRAGMENT].num_textures,
v3d->tex[PIPE_SHADER_FRAGMENT].textures);
}
}
static void
v3d_render_blit(struct pipe_context *ctx, struct pipe_blit_info *info)
{
struct v3d_context *v3d = v3d_context(ctx);
struct v3d_resource *src = v3d_resource(info->src.resource);
struct pipe_resource *tiled = NULL;
if (!info->mask)
return;
if (!src->tiled &&
info->src.resource->target != PIPE_TEXTURE_1D &&
info->src.resource->target != PIPE_TEXTURE_1D_ARRAY) {
struct pipe_box box = {
.x = 0,
.y = 0,
.width = u_minify(info->src.resource->width0,
info->src.level),
.height = u_minify(info->src.resource->height0,
info->src.level),
.depth = 1,
};
struct pipe_resource tmpl = {
.target = info->src.resource->target,
.format = info->src.resource->format,
.width0 = box.width,
.height0 = box.height,
.depth0 = 1,
.array_size = 1,
};
tiled = ctx->screen->resource_create(ctx->screen, &tmpl);
if (!tiled) {
fprintf(stderr, "Failed to create tiled blit temp\n");
return;
}
ctx->resource_copy_region(ctx,
tiled, 0,
0, 0, 0,
info->src.resource, info->src.level,
&box);
info->src.level = 0;
info->src.resource = tiled;
}
if (!util_blitter_is_blit_supported(v3d->blitter, info)) {
fprintf(stderr, "blit unsupported %s -> %s\n",
util_format_short_name(info->src.format),
util_format_short_name(info->dst.format));
return;
}
v3d_blitter_save(v3d, true);
util_blitter_blit(v3d->blitter, info);
pipe_resource_reference(&tiled, NULL);
info->mask = 0;
}
/* Implement stencil blits by reinterpreting the stencil data as an RGBA8888
* or R8 texture.
*/
static void
v3d_stencil_blit(struct pipe_context *ctx, struct pipe_blit_info *info)
{
struct v3d_context *v3d = v3d_context(ctx);
struct v3d_resource *src = v3d_resource(info->src.resource);
struct v3d_resource *dst = v3d_resource(info->dst.resource);
enum pipe_format src_format, dst_format;
if ((info->mask & PIPE_MASK_S) == 0)
return;
if (src->separate_stencil) {
src = src->separate_stencil;
src_format = PIPE_FORMAT_R8_UINT;
} else {
src_format = PIPE_FORMAT_RGBA8888_UINT;
}
if (dst->separate_stencil) {
dst = dst->separate_stencil;
dst_format = PIPE_FORMAT_R8_UINT;
} else {
dst_format = PIPE_FORMAT_RGBA8888_UINT;
}
/* Initialize the surface. */
struct pipe_surface dst_tmpl = {
.u.tex = {
.level = info->dst.level,
.first_layer = info->dst.box.z,
.last_layer = info->dst.box.z,
},
.format = dst_format,
};
struct pipe_surface *dst_surf =
ctx->create_surface(ctx, &dst->base, &dst_tmpl);
/* Initialize the sampler view. */
struct pipe_sampler_view src_tmpl = {
.target = src->base.target,
.format = src_format,
.u.tex = {
.first_level = info->src.level,
.last_level = info->src.level,
.first_layer = 0,
.last_layer = (PIPE_TEXTURE_3D ?
u_minify(src->base.depth0,
info->src.level) - 1 :
src->base.array_size - 1),
},
.swizzle_r = PIPE_SWIZZLE_X,
.swizzle_g = PIPE_SWIZZLE_Y,
.swizzle_b = PIPE_SWIZZLE_Z,
.swizzle_a = PIPE_SWIZZLE_W,
};
struct pipe_sampler_view *src_view =
ctx->create_sampler_view(ctx, &src->base, &src_tmpl);
v3d_blitter_save(v3d, true);
util_blitter_blit_generic(v3d->blitter, dst_surf, &info->dst.box,
src_view, &info->src.box,
src->base.width0, src->base.height0,
PIPE_MASK_R,
PIPE_TEX_FILTER_NEAREST,
info->scissor_enable ? &info->scissor : NULL,
info->alpha_blend, false, 0);
pipe_surface_reference(&dst_surf, NULL);
pipe_sampler_view_reference(&src_view, NULL);
info->mask &= ~PIPE_MASK_S;
}
static bool
v3d_tfu(struct pipe_context *pctx,
struct pipe_resource *pdst,
struct pipe_resource *psrc,
unsigned int src_level,
unsigned int base_level,
unsigned int last_level,
unsigned int src_layer,
unsigned int dst_layer,
bool for_mipmap)
{
struct v3d_context *v3d = v3d_context(pctx);
struct v3d_screen *screen = v3d->screen;
struct v3d_resource *src = v3d_resource(psrc);
struct v3d_resource *dst = v3d_resource(pdst);
struct v3d_resource_slice *src_base_slice = &src->slices[src_level];
struct v3d_resource_slice *dst_base_slice = &dst->slices[base_level];
int msaa_scale = pdst->nr_samples > 1 ? 2 : 1;
int width = u_minify(pdst->width0, base_level) * msaa_scale;
int height = u_minify(pdst->height0, base_level) * msaa_scale;
enum pipe_format pformat;
if (psrc->format != pdst->format)
return false;
if (psrc->nr_samples != pdst->nr_samples)
return false;
/* Can't write to raster. */
if (dst_base_slice->tiling == V3D_TILING_RASTER)
return false;
/* When using TFU for blit, we are doing exact copies (both input and
* output format must be the same, no scaling, etc), so there is no
* pixel format conversions. Thus we can rewrite the format to use one
* that is TFU compatible based on its texel size.
*/
if (for_mipmap) {
pformat = pdst->format;
} else {
switch (dst->cpp) {
case 16: pformat = PIPE_FORMAT_R32G32B32A32_FLOAT; break;
case 8: pformat = PIPE_FORMAT_R16G16B16A16_FLOAT; break;
case 4: pformat = PIPE_FORMAT_R32_FLOAT; break;
case 2: pformat = PIPE_FORMAT_R16_FLOAT; break;
case 1: pformat = PIPE_FORMAT_R8_UNORM; break;
default: unreachable("unsupported format bit-size"); break;
};
}
uint32_t tex_format = v3d_get_tex_format(&screen->devinfo, pformat);
if (!v3d_tfu_supports_tex_format(&screen->devinfo, tex_format, for_mipmap)) {
assert(for_mipmap);
return false;
}
v3d_flush_jobs_writing_resource(v3d, psrc, V3D_FLUSH_DEFAULT, false);
v3d_flush_jobs_reading_resource(v3d, pdst, V3D_FLUSH_DEFAULT, false);
struct drm_v3d_submit_tfu tfu = {
.ios = (height << 16) | width,
.bo_handles = {
dst->bo->handle,
src != dst ? src->bo->handle : 0
},
.in_sync = v3d->out_sync,
.out_sync = v3d->out_sync,
};
uint32_t src_offset = (src->bo->offset +
v3d_layer_offset(psrc, src_level, src_layer));
tfu.iia |= src_offset;
if (src_base_slice->tiling == V3D_TILING_RASTER) {
tfu.icfg |= (V3D33_TFU_ICFG_FORMAT_RASTER <<
V3D33_TFU_ICFG_FORMAT_SHIFT);
} else {
tfu.icfg |= ((V3D33_TFU_ICFG_FORMAT_LINEARTILE +
(src_base_slice->tiling - V3D_TILING_LINEARTILE)) <<
V3D33_TFU_ICFG_FORMAT_SHIFT);
}
uint32_t dst_offset = (dst->bo->offset +
v3d_layer_offset(pdst, base_level, dst_layer));
tfu.ioa |= dst_offset;
if (last_level != base_level)
tfu.ioa |= V3D33_TFU_IOA_DIMTW;
tfu.ioa |= ((V3D33_TFU_IOA_FORMAT_LINEARTILE +
(dst_base_slice->tiling - V3D_TILING_LINEARTILE)) <<
V3D33_TFU_IOA_FORMAT_SHIFT);
tfu.icfg |= tex_format << V3D33_TFU_ICFG_TTYPE_SHIFT;
tfu.icfg |= (last_level - base_level) << V3D33_TFU_ICFG_NUMMM_SHIFT;
switch (src_base_slice->tiling) {
case V3D_TILING_UIF_NO_XOR:
case V3D_TILING_UIF_XOR:
tfu.iis |= (src_base_slice->padded_height /
(2 * v3d_utile_height(src->cpp)));
break;
case V3D_TILING_RASTER:
tfu.iis |= src_base_slice->stride / src->cpp;
break;
case V3D_TILING_LINEARTILE:
case V3D_TILING_UBLINEAR_1_COLUMN:
case V3D_TILING_UBLINEAR_2_COLUMN:
break;
}
/* If we're writing level 0 (!IOA_DIMTW), then we need to supply the
* OPAD field for the destination (how many extra UIF blocks beyond
* those necessary to cover the height). When filling mipmaps, the
* miplevel 1+ tiling state is inferred.
*/
if (dst_base_slice->tiling == V3D_TILING_UIF_NO_XOR ||
dst_base_slice->tiling == V3D_TILING_UIF_XOR) {
int uif_block_h = 2 * v3d_utile_height(dst->cpp);
int implicit_padded_height = align(height, uif_block_h);
tfu.icfg |= (((dst_base_slice->padded_height -
implicit_padded_height) / uif_block_h) <<
V3D33_TFU_ICFG_OPAD_SHIFT);
}
int ret = v3d_ioctl(screen->fd, DRM_IOCTL_V3D_SUBMIT_TFU, &tfu);
if (ret != 0) {
fprintf(stderr, "Failed to submit TFU job: %d\n", ret);
return false;
}
dst->writes++;
return true;
}
bool
v3d_generate_mipmap(struct pipe_context *pctx,
struct pipe_resource *prsc,
enum pipe_format format,
unsigned int base_level,
unsigned int last_level,
unsigned int first_layer,
unsigned int last_layer)
{
if (format != prsc->format)
return false;
/* We could maybe support looping over layers for array textures, but
* we definitely don't support 3D.
*/
if (first_layer != last_layer)
return false;
return v3d_tfu(pctx,
prsc, prsc,
base_level,
base_level, last_level,
first_layer, first_layer,
true);
}
static void
v3d_tfu_blit(struct pipe_context *pctx, struct pipe_blit_info *info)
{
int dst_width = u_minify(info->dst.resource->width0, info->dst.level);
int dst_height = u_minify(info->dst.resource->height0, info->dst.level);
if ((info->mask & PIPE_MASK_RGBA) == 0)
return;
if (info->scissor_enable ||
info->dst.box.x != 0 ||
info->dst.box.y != 0 ||
info->dst.box.width != dst_width ||
info->dst.box.height != dst_height ||
info->dst.box.depth != 1 ||
info->src.box.x != 0 ||
info->src.box.y != 0 ||
info->src.box.width != info->dst.box.width ||
info->src.box.height != info->dst.box.height ||
info->src.box.depth != 1) {
return;
}
if (info->dst.format != info->src.format)
return;
if (v3d_tfu(pctx, info->dst.resource, info->src.resource,
info->src.level,
info->dst.level, info->dst.level,
info->src.box.z, info->dst.box.z,
false)) {
info->mask &= ~PIPE_MASK_RGBA;
}
}
static struct pipe_surface *
v3d_get_blit_surface(struct pipe_context *pctx,
struct pipe_resource *prsc,
enum pipe_format format,
unsigned level,
int16_t layer)
{
struct pipe_surface tmpl;
tmpl.format = format;
tmpl.u.tex.level = level;
tmpl.u.tex.first_layer = layer;
tmpl.u.tex.last_layer = layer;
return pctx->create_surface(pctx, prsc, &tmpl);
}
static bool
is_tile_unaligned(unsigned size, unsigned tile_size)
{
return size & (tile_size - 1);
}
static void
v3d_tlb_blit(struct pipe_context *pctx, struct pipe_blit_info *info)
{
struct v3d_context *v3d = v3d_context(pctx);
struct v3d_screen *screen = v3d->screen;
if (screen->devinfo.ver < 40 || !info->mask)
return;
bool is_color_blit = info->mask & PIPE_MASK_RGBA;
bool is_depth_blit = info->mask & PIPE_MASK_Z;
bool is_stencil_blit = info->mask & PIPE_MASK_S;
/* We should receive either a depth/stencil blit, or color blit, but
* not both.
*/
assert ((is_color_blit && !is_depth_blit && !is_stencil_blit) ||
(!is_color_blit && (is_depth_blit || is_stencil_blit)));
if (info->scissor_enable)
return;
if (info->src.box.x != info->dst.box.x ||
info->src.box.y != info->dst.box.y ||
info->src.box.width != info->dst.box.width ||
info->src.box.height != info->dst.box.height)
return;
if (is_color_blit &&
util_format_is_depth_or_stencil(info->dst.format))
return;
if (!v3d_rt_format_supported(&screen->devinfo, info->src.format))
return;
if (v3d_get_rt_format(&screen->devinfo, info->src.format) !=
v3d_get_rt_format(&screen->devinfo, info->dst.format))
return;
bool msaa = (info->src.resource->nr_samples > 1 ||
info->dst.resource->nr_samples > 1);
bool is_msaa_resolve = (info->src.resource->nr_samples > 1 &&
info->dst.resource->nr_samples < 2);
if (is_msaa_resolve &&
!v3d_format_supports_tlb_msaa_resolve(&screen->devinfo, info->src.format))
return;
v3d_flush_jobs_writing_resource(v3d, info->src.resource, V3D_FLUSH_DEFAULT, false);
struct pipe_surface *dst_surf =
v3d_get_blit_surface(pctx, info->dst.resource, info->dst.format, info->dst.level, info->dst.box.z);
struct pipe_surface *src_surf =
v3d_get_blit_surface(pctx, info->src.resource, info->src.format, info->src.level, info->src.box.z);
struct pipe_surface *surfaces[V3D_MAX_DRAW_BUFFERS] = { 0 };
if (is_color_blit)
surfaces[0] = dst_surf;
bool double_buffer =
unlikely(V3D_DEBUG & V3D_DEBUG_DOUBLE_BUFFER) && !msaa;
uint32_t tile_width, tile_height, max_bpp;
v3d_get_tile_buffer_size(msaa, double_buffer,
is_color_blit ? 1 : 0, surfaces, src_surf,
&tile_width, &tile_height, &max_bpp);
int dst_surface_width = u_minify(info->dst.resource->width0,
info->dst.level);
int dst_surface_height = u_minify(info->dst.resource->height0,
info->dst.level);
if (is_tile_unaligned(info->dst.box.x, tile_width) ||
is_tile_unaligned(info->dst.box.y, tile_height) ||
(is_tile_unaligned(info->dst.box.width, tile_width) &&
info->dst.box.x + info->dst.box.width != dst_surface_width) ||
(is_tile_unaligned(info->dst.box.height, tile_height) &&
info->dst.box.y + info->dst.box.height != dst_surface_height)) {
pipe_surface_reference(&dst_surf, NULL);
pipe_surface_reference(&src_surf, NULL);
return;
}
struct v3d_job *job = v3d_get_job(v3d,
is_color_blit ? 1u : 0u,
surfaces,
is_color_blit ? NULL : dst_surf,
src_surf);
job->msaa = msaa;
job->double_buffer = double_buffer;
job->tile_width = tile_width;
job->tile_height = tile_height;
job->internal_bpp = max_bpp;
job->draw_min_x = info->dst.box.x;
job->draw_min_y = info->dst.box.y;
job->draw_max_x = info->dst.box.x + info->dst.box.width;
job->draw_max_y = info->dst.box.y + info->dst.box.height;
job->scissor.disabled = false;
/* The simulator complains if we do a TLB load from a source with a
* stride that is smaller than the destination's, so we program the
* 'frame region' to match the smallest dimensions of the two surfaces.
* This should be fine because we only get here if the src and dst boxes
* match, so we know the blit involves the same tiles on both surfaces.
*/
job->draw_width = MIN2(dst_surf->width, src_surf->width);
job->draw_height = MIN2(dst_surf->height, src_surf->height);
job->draw_tiles_x = DIV_ROUND_UP(job->draw_width,
job->tile_width);
job->draw_tiles_y = DIV_ROUND_UP(job->draw_height,
job->tile_height);
job->needs_flush = true;
job->num_layers = info->dst.box.depth;
job->store = 0;
if (is_color_blit) {
job->store |= PIPE_CLEAR_COLOR0;
info->mask &= ~PIPE_MASK_RGBA;
}
if (is_depth_blit) {
job->store |= PIPE_CLEAR_DEPTH;
info->mask &= ~PIPE_MASK_Z;
}
if (is_stencil_blit){
job->store |= PIPE_CLEAR_STENCIL;
info->mask &= ~PIPE_MASK_S;
}
v3d41_start_binning(v3d, job);
v3d_job_submit(v3d, job);
pipe_surface_reference(&dst_surf, NULL);
pipe_surface_reference(&src_surf, NULL);
}
/**
* Creates the VS of the custom blit shader to convert YUV plane from
* the NV12 format with BROADCOM_SAND_COL128 modifier to UIF tiled format.
* This vertex shader is mostly a pass-through VS.
*/
static void *
v3d_get_sand8_vs(struct pipe_context *pctx)
{
struct v3d_context *v3d = v3d_context(pctx);
struct pipe_screen *pscreen = pctx->screen;
if (v3d->sand8_blit_vs)
return v3d->sand8_blit_vs;
const struct nir_shader_compiler_options *options =
pscreen->get_compiler_options(pscreen,
PIPE_SHADER_IR_NIR,
PIPE_SHADER_VERTEX);
nir_builder b = nir_builder_init_simple_shader(MESA_SHADER_VERTEX,
options,
"sand8_blit_vs");
const struct glsl_type *vec4 = glsl_vec4_type();
nir_variable *pos_in = nir_variable_create(b.shader,
nir_var_shader_in,
vec4, "pos");
nir_variable *pos_out = nir_variable_create(b.shader,
nir_var_shader_out,
vec4, "gl_Position");
pos_out->data.location = VARYING_SLOT_POS;
nir_store_var(&b, pos_out, nir_load_var(&b, pos_in), 0xf);
struct pipe_shader_state shader_tmpl = {
.type = PIPE_SHADER_IR_NIR,
.ir.nir = b.shader,
};
v3d->sand8_blit_vs = pctx->create_vs_state(pctx, &shader_tmpl);
return v3d->sand8_blit_vs;
}
/**
* Creates the FS of the custom blit shader to convert YUV plane from
* the NV12 format with BROADCOM_SAND_COL128 modifier to UIF tiled format.
* The result texture is equivalent to a chroma (cpp=2) or luma (cpp=1)
* plane for a NV12 format without the SAND modifier.
*/
static void *
v3d_get_sand8_fs(struct pipe_context *pctx, int cpp)
{
struct v3d_context *v3d = v3d_context(pctx);
struct pipe_screen *pscreen = pctx->screen;
struct pipe_shader_state **cached_shader;
const char *name;
if (cpp == 1) {
cached_shader = &v3d->sand8_blit_fs_luma;
name = "sand8_blit_fs_luma";
} else {
cached_shader = &v3d->sand8_blit_fs_chroma;
name = "sand8_blit_fs_chroma";
}
if (*cached_shader)
return *cached_shader;
const struct nir_shader_compiler_options *options =
pscreen->get_compiler_options(pscreen,
PIPE_SHADER_IR_NIR,
PIPE_SHADER_FRAGMENT);
nir_builder b = nir_builder_init_simple_shader(MESA_SHADER_FRAGMENT,
options, "%s", name);
const struct glsl_type *vec4 = glsl_vec4_type();
const struct glsl_type *glsl_int = glsl_int_type();
nir_variable *color_out =
nir_variable_create(b.shader, nir_var_shader_out,
vec4, "f_color");
color_out->data.location = FRAG_RESULT_COLOR;
nir_variable *pos_in =
nir_variable_create(b.shader, nir_var_shader_in, vec4, "pos");
pos_in->data.location = VARYING_SLOT_POS;
nir_ssa_def *pos = nir_load_var(&b, pos_in);
nir_ssa_def *zero = nir_imm_int(&b, 0);
nir_ssa_def *one = nir_imm_int(&b, 1);
nir_ssa_def *two = nir_imm_int(&b, 2);
nir_ssa_def *six = nir_imm_int(&b, 6);
nir_ssa_def *seven = nir_imm_int(&b, 7);
nir_ssa_def *eight = nir_imm_int(&b, 8);
nir_ssa_def *x = nir_f2i32(&b, nir_channel(&b, pos, 0));
nir_ssa_def *y = nir_f2i32(&b, nir_channel(&b, pos, 1));
nir_variable *stride_in =
nir_variable_create(b.shader, nir_var_uniform, glsl_int,
"sand8_stride");
nir_ssa_def *stride =
nir_load_uniform(&b, 1, 32, zero,
.base = stride_in->data.driver_location,
.range = 1,
.dest_type = nir_type_int32);
nir_ssa_def *x_offset;
nir_ssa_def *y_offset;
/* UIF tiled format is composed by UIF blocks, Each block has
* four 64 byte microtiles. Inside each microtile pixels are stored
* in raster format. But microtiles have different dimensions
* based in the bits per pixel of the image.
*
* 8bpp microtile dimensions are 8x8
* 16bpp microtile dimensions are 8x4
* 32bpp microtile dimensions are 4x4
*
* As we are reading and writing with 32bpp to optimize
* the number of texture operations during the blit. We need
* to adjust the offsets were we read and write as data will
* be later read using 8bpp (luma) and 16bpp (chroma).
*
* For chroma 8x4 16bpp raster order is compatible with 4x4
* 32bpp. In both layouts each line has 8*2 == 4*4 == 16 bytes.
* But luma 8x8 8bpp raster order is not compatible
* with 4x4 32bpp. 8bpp has 8 bytes per line, and 32bpp has
* 16 bytes per line. So if we read a 8bpp texture that was
* written as 32bpp texture. Bytes would be misplaced.
*
* inter/intra_utile_x_offests takes care of mapping the offsets
* between microtiles to deal with this issue for luma planes.
*/
if (cpp == 1) {
nir_ssa_def *intra_utile_x_offset =
nir_ishl(&b, nir_iand_imm(&b, x, 1), two);
nir_ssa_def *inter_utile_x_offset =
nir_ishl(&b, nir_iand_imm(&b, x, 60), one);
nir_ssa_def *stripe_offset=
nir_ishl(&b,nir_imul(&b,nir_ishr_imm(&b, x, 6),
stride),
seven);
x_offset = nir_iadd(&b, stripe_offset,
nir_iadd(&b, intra_utile_x_offset,
inter_utile_x_offset));
y_offset = nir_iadd(&b,
nir_ishl(&b, nir_iand_imm(&b, x, 2), six),
nir_ishl(&b, y, eight));
} else {
nir_ssa_def *stripe_offset=
nir_ishl(&b,nir_imul(&b,nir_ishr_imm(&b, x, 5),
stride),
seven);
x_offset = nir_iadd(&b, stripe_offset,
nir_ishl(&b, nir_iand_imm(&b, x, 31), two));
y_offset = nir_ishl(&b, y, seven);
}
nir_ssa_def *ubo_offset = nir_iadd(&b, x_offset, y_offset);
nir_ssa_def *load =
nir_load_ubo(&b, 1, 32, one, ubo_offset,
.align_mul = 4,
.align_offset = 0,
.range_base = 0,
.range = ~0);
nir_ssa_def *output = nir_unpack_unorm_4x8(&b, load);
nir_store_var(&b, color_out,
output,
0xF);
struct pipe_shader_state shader_tmpl = {
.type = PIPE_SHADER_IR_NIR,
.ir.nir = b.shader,
};
*cached_shader = pctx->create_fs_state(pctx, &shader_tmpl);
return *cached_shader;
}
/**
* Turns NV12 with SAND8 format modifier from raster-order with interleaved
* luma and chroma 128-byte-wide-columns to tiled format for luma and chroma.
*
* This implementation is based on vc4_yuv_blit.
*/
static void
v3d_sand8_blit(struct pipe_context *pctx, struct pipe_blit_info *info)
{
struct v3d_context *v3d = v3d_context(pctx);
struct v3d_resource *src = v3d_resource(info->src.resource);
ASSERTED struct v3d_resource *dst = v3d_resource(info->dst.resource);
if (!src->sand_col128_stride)
return;
if (src->tiled)
return;
if (src->base.format != PIPE_FORMAT_R8_UNORM &&
src->base.format != PIPE_FORMAT_R8G8_UNORM)
return;
if (!(info->mask & PIPE_MASK_RGBA))
return;
assert(dst->base.format == src->base.format);
assert(dst->tiled);
assert(info->src.box.x == 0 && info->dst.box.x == 0);
assert(info->src.box.y == 0 && info->dst.box.y == 0);
assert(info->src.box.width == info->dst.box.width);
assert(info->src.box.height == info->dst.box.height);
v3d_blitter_save(v3d, true);
struct pipe_surface dst_tmpl;
util_blitter_default_dst_texture(&dst_tmpl, info->dst.resource,
info->dst.level, info->dst.box.z);
/* Although the src textures are cpp=1 or cpp=2, the dst texture
* uses a cpp=4 dst texture. So, all read/write texture ops will
* be done using 32-bit read and writes.
*/
dst_tmpl.format = PIPE_FORMAT_R8G8B8A8_UNORM;
struct pipe_surface *dst_surf =
pctx->create_surface(pctx, info->dst.resource, &dst_tmpl);
if (!dst_surf) {
fprintf(stderr, "Failed to create YUV dst surface\n");
util_blitter_unset_running_flag(v3d->blitter);
return;
}
uint32_t sand8_stride = src->sand_col128_stride;
/* Adjust the dimensions of dst luma/chroma to match src
* size now we are using a cpp=4 format. Next dimension take into
* account the UIF microtile layouts.
*/
dst_surf->width = align(dst_surf->width, 8) / 2;
if (src->cpp == 1)
dst_surf->height /= 2;
/* Set the constant buffer. */
struct pipe_constant_buffer cb_uniforms = {
.user_buffer = &sand8_stride,
.buffer_size = sizeof(sand8_stride),
};
pctx->set_constant_buffer(pctx, PIPE_SHADER_FRAGMENT, 0, false,
&cb_uniforms);
struct pipe_constant_buffer cb_src = {
.buffer = info->src.resource,
.buffer_offset = src->slices[info->src.level].offset,
.buffer_size = (src->bo->size -
src->slices[info->src.level].offset),
};
pctx->set_constant_buffer(pctx, PIPE_SHADER_FRAGMENT, 2, false,
&cb_src);
/* Unbind the textures, to make sure we don't try to recurse into the
* shadow blit.
*/
pctx->set_sampler_views(pctx, PIPE_SHADER_FRAGMENT, 0, 0, 0, false, NULL);
pctx->bind_sampler_states(pctx, PIPE_SHADER_FRAGMENT, 0, 0, NULL);
util_blitter_custom_shader(v3d->blitter, dst_surf,
v3d_get_sand8_vs(pctx),
v3d_get_sand8_fs(pctx, src->cpp));
util_blitter_restore_textures(v3d->blitter);
util_blitter_restore_constant_buffer_state(v3d->blitter);
/* Restore cb1 (util_blitter doesn't handle this one). */
struct pipe_constant_buffer cb_disabled = { 0 };
pctx->set_constant_buffer(pctx, PIPE_SHADER_FRAGMENT, 1, false,
&cb_disabled);
pipe_surface_reference(&dst_surf, NULL);
info->mask &= ~PIPE_MASK_RGBA;
return;
}
/* Optimal hardware path for blitting pixels.
* Scaling, format conversion, up- and downsampling (resolve) are allowed.
*/
void
v3d_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
{
struct v3d_context *v3d = v3d_context(pctx);
struct pipe_blit_info info = *blit_info;
v3d_sand8_blit(pctx, &info);
v3d_tfu_blit(pctx, &info);
v3d_tlb_blit(pctx, &info);
v3d_stencil_blit(pctx, &info);
v3d_render_blit(pctx, &info);
/* Flush our blit jobs immediately. They're unlikely to get reused by
* normal drawing or other blits, and without flushing we can easily
* run into unexpected OOMs when blits are used for a large series of
* texture uploads before using the textures.
*/
v3d_flush_jobs_writing_resource(v3d, info.dst.resource,
V3D_FLUSH_DEFAULT, false);
}