static void si_clear(struct pipe_context *ctx, unsigned buffers,
const union pipe_color_union *color,
double depth, unsigned stencil)
{
struct si_context *sctx = (struct si_context *)ctx;
struct pipe_framebuffer_state *fb = &sctx->framebuffer.state;
if (buffers & PIPE_CLEAR_COLOR) {
evergreen_do_fast_color_clear(&sctx->b, fb, &sctx->framebuffer.atom,
&buffers, color);
}
if (buffers & PIPE_CLEAR_COLOR) {
int i;
/* These buffers cannot use fast clear, make sure to disable expansion. */
for (i = 0; i < fb->nr_cbufs; i++) {
struct r600_texture *tex;
/* If not clearing this buffer, skip. */
if (!(buffers & (PIPE_CLEAR_COLOR0 << i)))
continue;
if (!fb->cbufs[i])
continue;
tex = (struct r600_texture *)fb->cbufs[i]->texture;
if (tex->fmask.size == 0)
tex->dirty_level_mask &= ~(1 << fb->cbufs[i]->u.tex.level);
}
}
si_blitter_begin(ctx, SI_CLEAR);
util_blitter_clear(sctx->blitter, fb->width, fb->height,
util_framebuffer_get_num_layers(fb),
buffers, color, depth, stencil);
si_blitter_end(ctx);
}
static void r600_clear(struct pipe_context *ctx, unsigned buffers,
const union pipe_color_union *color,
double depth, unsigned stencil)
{
struct r600_context *rctx = (struct r600_context *)ctx;
struct pipe_framebuffer_state *fb = &rctx->framebuffer.state;
if (buffers & PIPE_CLEAR_COLOR && rctx->b.chip_class >= EVERGREEN) {
evergreen_do_fast_color_clear(&rctx->b, fb, &rctx->framebuffer.atom,
&buffers, color);
}
if (buffers & PIPE_CLEAR_COLOR) {
int i;
/* These buffers cannot use fast clear, make sure to disable expansion. */
for (i = 0; i < fb->nr_cbufs; i++) {
struct r600_texture *tex;
/* If not clearing this buffer, skip. */
if (!(buffers & (PIPE_CLEAR_COLOR0 << i)))
continue;
if (!fb->cbufs[i])
continue;
tex = (struct r600_texture *)fb->cbufs[i]->texture;
if (tex->fmask.size == 0)
tex->dirty_level_mask &= ~(1 << fb->cbufs[i]->u.tex.level);
}
}
/* if hyperz enabled just clear hyperz */
if (fb->zsbuf && (buffers & PIPE_CLEAR_DEPTH)) {
struct r600_texture *rtex;
unsigned level = fb->zsbuf->u.tex.level;
rtex = (struct r600_texture*)fb->zsbuf->texture;
/* We can't use hyperz fast clear if each slice of a texture
* array are clear to different value. To simplify code just
* disable fast clear for texture array.
*/
/* Only use htile for first level */
if (rtex->htile_buffer && !level &&
util_max_layer(&rtex->resource.b.b, level) == 0) {
if (rtex->depth_clear_value != depth) {
rtex->depth_clear_value = depth;
rctx->db_state.atom.dirty = true;
}
rctx->db_misc_state.htile_clear = true;
rctx->db_misc_state.atom.dirty = true;
}
}
r600_blitter_begin(ctx, R600_CLEAR);
util_blitter_clear(rctx->blitter, fb->width, fb->height,
util_framebuffer_get_num_layers(fb),
buffers, color, depth, stencil);
r600_blitter_end(ctx);
/* disable fast clear */
if (rctx->db_misc_state.htile_clear) {
rctx->db_misc_state.htile_clear = false;
rctx->db_misc_state.atom.dirty = true;
}
}
/**
* Do glClear by drawing a quadrilateral.
* The vertices of the quad will be computed from the
* ctx->DrawBuffer->_X/Ymin/max fields.
*/
static void
clear_with_quad(struct gl_context *ctx, unsigned clear_buffers)
{
struct st_context *st = st_context(ctx);
const struct gl_framebuffer *fb = ctx->DrawBuffer;
const GLfloat fb_width = (GLfloat) fb->Width;
const GLfloat fb_height = (GLfloat) fb->Height;
const GLfloat x0 = (GLfloat) ctx->DrawBuffer->_Xmin / fb_width * 2.0f - 1.0f;
const GLfloat x1 = (GLfloat) ctx->DrawBuffer->_Xmax / fb_width * 2.0f - 1.0f;
const GLfloat y0 = (GLfloat) ctx->DrawBuffer->_Ymin / fb_height * 2.0f - 1.0f;
const GLfloat y1 = (GLfloat) ctx->DrawBuffer->_Ymax / fb_height * 2.0f - 1.0f;
unsigned num_layers =
util_framebuffer_get_num_layers(&st->state.framebuffer);
/*
printf("%s %s%s%s %f,%f %f,%f\n", __FUNCTION__,
color ? "color, " : "",
depth ? "depth, " : "",
stencil ? "stencil" : "",
x0, y0,
x1, y1);
*/
cso_save_blend(st->cso_context);
cso_save_stencil_ref(st->cso_context);
cso_save_depth_stencil_alpha(st->cso_context);
cso_save_rasterizer(st->cso_context);
cso_save_sample_mask(st->cso_context);
cso_save_viewport(st->cso_context);
cso_save_fragment_shader(st->cso_context);
cso_save_stream_outputs(st->cso_context);
cso_save_vertex_shader(st->cso_context);
cso_save_geometry_shader(st->cso_context);
cso_save_vertex_elements(st->cso_context);
cso_save_aux_vertex_buffer_slot(st->cso_context);
/* blend state: RGBA masking */
{
struct pipe_blend_state blend;
memset(&blend, 0, sizeof(blend));
if (clear_buffers & PIPE_CLEAR_COLOR) {
int num_buffers = ctx->Extensions.EXT_draw_buffers2 ?
ctx->DrawBuffer->_NumColorDrawBuffers : 1;
int i;
blend.independent_blend_enable = num_buffers > 1;
for (i = 0; i < num_buffers; i++) {
if (!(clear_buffers & (PIPE_CLEAR_COLOR0 << i)))
continue;
if (ctx->Color.ColorMask[i][0])
blend.rt[i].colormask |= PIPE_MASK_R;
if (ctx->Color.ColorMask[i][1])
blend.rt[i].colormask |= PIPE_MASK_G;
if (ctx->Color.ColorMask[i][2])
blend.rt[i].colormask |= PIPE_MASK_B;
if (ctx->Color.ColorMask[i][3])
blend.rt[i].colormask |= PIPE_MASK_A;
}
if (st->ctx->Color.DitherFlag)
blend.dither = 1;
}
cso_set_blend(st->cso_context, &blend);
}
/* depth_stencil state: always pass/set to ref value */
{
struct pipe_depth_stencil_alpha_state depth_stencil;
memset(&depth_stencil, 0, sizeof(depth_stencil));
if (clear_buffers & PIPE_CLEAR_DEPTH) {
depth_stencil.depth.enabled = 1;
depth_stencil.depth.writemask = 1;
depth_stencil.depth.func = PIPE_FUNC_ALWAYS;
}
if (clear_buffers & PIPE_CLEAR_STENCIL) {
struct pipe_stencil_ref stencil_ref;
memset(&stencil_ref, 0, sizeof(stencil_ref));
depth_stencil.stencil[0].enabled = 1;
depth_stencil.stencil[0].func = PIPE_FUNC_ALWAYS;
depth_stencil.stencil[0].fail_op = PIPE_STENCIL_OP_REPLACE;
depth_stencil.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
depth_stencil.stencil[0].zfail_op = PIPE_STENCIL_OP_REPLACE;
depth_stencil.stencil[0].valuemask = 0xff;
depth_stencil.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;
stencil_ref.ref_value[0] = ctx->Stencil.Clear;
cso_set_stencil_ref(st->cso_context, &stencil_ref);
}
cso_set_depth_stencil_alpha(st->cso_context, &depth_stencil);
}
cso_set_vertex_elements(st->cso_context, 2, st->velems_util_draw);
cso_set_stream_outputs(st->cso_context, 0, NULL, NULL);
cso_set_sample_mask(st->cso_context, ~0);
cso_set_rasterizer(st->cso_context, &st->clear.raster);
/* viewport state: viewport matching window dims */
{
const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);
struct pipe_viewport_state vp;
vp.scale[0] = 0.5f * fb_width;
vp.scale[1] = fb_height * (invert ? -0.5f : 0.5f);
vp.scale[2] = 1.0f;
vp.scale[3] = 1.0f;
vp.translate[0] = 0.5f * fb_width;
vp.translate[1] = 0.5f * fb_height;
vp.translate[2] = 0.0f;
vp.translate[3] = 0.0f;
cso_set_viewport(st->cso_context, &vp);
}
set_fragment_shader(st);
cso_set_geometry_shader_handle(st->cso_context, NULL);
if (num_layers > 1)
set_vertex_shader_layered(st);
else
set_vertex_shader(st);
/* We can't translate the clear color to the colorbuffer format,
* because different colorbuffers may have different formats.
*/
/* draw quad matching scissor rect */
draw_quad(st, x0, y0, x1, y1, (GLfloat) ctx->Depth.Clear, num_layers,
(union pipe_color_union*)&ctx->Color.ClearColor);
/* Restore pipe state */
cso_restore_blend(st->cso_context);
cso_restore_stencil_ref(st->cso_context);
cso_restore_depth_stencil_alpha(st->cso_context);
cso_restore_rasterizer(st->cso_context);
cso_restore_sample_mask(st->cso_context);
cso_restore_viewport(st->cso_context);
cso_restore_fragment_shader(st->cso_context);
cso_restore_vertex_shader(st->cso_context);
cso_restore_geometry_shader(st->cso_context);
cso_restore_vertex_elements(st->cso_context);
cso_restore_aux_vertex_buffer_slot(st->cso_context);
cso_restore_stream_outputs(st->cso_context);
}
/**
* Update framebuffer state (color, depth, stencil, etc. buffers)
*/
void
st_update_framebuffer_state( struct st_context *st )
{
struct pipe_framebuffer_state framebuffer;
struct gl_framebuffer *fb = st->ctx->DrawBuffer;
struct st_renderbuffer *strb;
GLuint i;
st_flush_bitmap_cache(st);
st_invalidate_readpix_cache(st);
st->state.fb_orientation = st_fb_orientation(fb);
/**
* Quantize the derived default number of samples:
*
* A query to the driver of supported MSAA values the
* hardware supports is done as to legalize the number
* of application requested samples, NumSamples.
* See commit eb9cf3c for more information.
*/
fb->DefaultGeometry._NumSamples =
framebuffer_quantize_num_samples(st, fb->DefaultGeometry.NumSamples);
framebuffer.width = _mesa_geometric_width(fb);
framebuffer.height = _mesa_geometric_height(fb);
framebuffer.samples = _mesa_geometric_samples(fb);
framebuffer.layers = _mesa_geometric_layers(fb);
/* Examine Mesa's ctx->DrawBuffer->_ColorDrawBuffers state
* to determine which surfaces to draw to
*/
framebuffer.nr_cbufs = fb->_NumColorDrawBuffers;
for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
framebuffer.cbufs[i] = NULL;
strb = st_renderbuffer(fb->_ColorDrawBuffers[i]);
if (strb) {
if (strb->is_rtt || (strb->texture &&
_mesa_get_format_color_encoding(strb->Base.Format) == GL_SRGB)) {
/* rendering to a GL texture, may have to update surface */
st_update_renderbuffer_surface(st, strb);
}
if (strb->surface) {
framebuffer.cbufs[i] = strb->surface;
update_framebuffer_size(&framebuffer, strb->surface);
}
strb->defined = GL_TRUE; /* we'll be drawing something */
}
}
for (i = framebuffer.nr_cbufs; i < PIPE_MAX_COLOR_BUFS; i++) {
framebuffer.cbufs[i] = NULL;
}
/* Remove trailing GL_NONE draw buffers. */
while (framebuffer.nr_cbufs &&
!framebuffer.cbufs[framebuffer.nr_cbufs-1]) {
framebuffer.nr_cbufs--;
}
/*
* Depth/Stencil renderbuffer/surface.
*/
strb = st_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer);
if (!strb)
strb = st_renderbuffer(fb->Attachment[BUFFER_STENCIL].Renderbuffer);
if (strb) {
if (strb->is_rtt) {
/* rendering to a GL texture, may have to update surface */
st_update_renderbuffer_surface(st, strb);
}
framebuffer.zsbuf = strb->surface;
update_framebuffer_size(&framebuffer, strb->surface);
}
else
framebuffer.zsbuf = NULL;
#ifdef DEBUG
/* Make sure the resource binding flags were set properly */
for (i = 0; i < framebuffer.nr_cbufs; i++) {
assert(!framebuffer.cbufs[i] ||
framebuffer.cbufs[i]->texture->bind & PIPE_BIND_RENDER_TARGET);
}
if (framebuffer.zsbuf) {
assert(framebuffer.zsbuf->texture->bind & PIPE_BIND_DEPTH_STENCIL);
}
#endif
if (framebuffer.width == USHRT_MAX)
framebuffer.width = 0;
if (framebuffer.height == USHRT_MAX)
framebuffer.height = 0;
cso_set_framebuffer(st->cso_context, &framebuffer);
st->state.fb_width = framebuffer.width;
st->state.fb_height = framebuffer.height;
st->state.fb_num_samples = util_framebuffer_get_num_samples(&framebuffer);
st->state.fb_num_layers = util_framebuffer_get_num_layers(&framebuffer);
st->state.fb_num_cb = framebuffer.nr_cbufs;
}
static void si_clear(struct pipe_context *ctx, unsigned buffers,
const union pipe_color_union *color,
double depth, unsigned stencil)
{
struct si_context *sctx = (struct si_context *)ctx;
struct pipe_framebuffer_state *fb = &sctx->framebuffer.state;
struct pipe_surface *zsbuf = fb->zsbuf;
struct r600_texture *zstex =
zsbuf ? (struct r600_texture*)zsbuf->texture : NULL;
if (buffers & PIPE_CLEAR_COLOR) {
evergreen_do_fast_color_clear(&sctx->b, fb,
&sctx->framebuffer.atom, &buffers,
&sctx->framebuffer.dirty_cbufs,
color);
if (!buffers)
return; /* all buffers have been fast cleared */
}
if (buffers & PIPE_CLEAR_COLOR) {
int i;
/* These buffers cannot use fast clear, make sure to disable expansion. */
for (i = 0; i < fb->nr_cbufs; i++) {
struct r600_texture *tex;
/* If not clearing this buffer, skip. */
if (!(buffers & (PIPE_CLEAR_COLOR0 << i)))
continue;
if (!fb->cbufs[i])
continue;
tex = (struct r600_texture *)fb->cbufs[i]->texture;
if (tex->fmask.size == 0)
tex->dirty_level_mask &= ~(1 << fb->cbufs[i]->u.tex.level);
}
}
if (zstex && zstex->htile_buffer &&
zsbuf->u.tex.level == 0 &&
zsbuf->u.tex.first_layer == 0 &&
zsbuf->u.tex.last_layer == util_max_layer(&zstex->resource.b.b, 0)) {
if (buffers & PIPE_CLEAR_DEPTH) {
/* Need to disable EXPCLEAR temporarily if clearing
* to a new value. */
if (!zstex->depth_cleared || zstex->depth_clear_value != depth) {
sctx->db_depth_disable_expclear = true;
}
zstex->depth_clear_value = depth;
sctx->framebuffer.dirty_zsbuf = true;
si_mark_atom_dirty(sctx, &sctx->framebuffer.atom); /* updates DB_DEPTH_CLEAR */
sctx->db_depth_clear = true;
si_mark_atom_dirty(sctx, &sctx->db_render_state);
}
if (buffers & PIPE_CLEAR_STENCIL) {
stencil &= 0xff;
/* Need to disable EXPCLEAR temporarily if clearing
* to a new value. */
if (!zstex->stencil_cleared || zstex->stencil_clear_value != stencil) {
sctx->db_stencil_disable_expclear = true;
}
zstex->stencil_clear_value = stencil;
sctx->framebuffer.dirty_zsbuf = true;
si_mark_atom_dirty(sctx, &sctx->framebuffer.atom); /* updates DB_STENCIL_CLEAR */
sctx->db_stencil_clear = true;
si_mark_atom_dirty(sctx, &sctx->db_render_state);
}
}
si_blitter_begin(ctx, SI_CLEAR);
util_blitter_clear(sctx->blitter, fb->width, fb->height,
util_framebuffer_get_num_layers(fb),
buffers, color, depth, stencil);
si_blitter_end(ctx);
if (sctx->db_depth_clear) {
sctx->db_depth_clear = false;
sctx->db_depth_disable_expclear = false;
zstex->depth_cleared = true;
si_mark_atom_dirty(sctx, &sctx->db_render_state);
}
if (sctx->db_stencil_clear) {
sctx->db_stencil_clear = false;
sctx->db_stencil_disable_expclear = false;
zstex->stencil_cleared = true;
si_mark_atom_dirty(sctx, &sctx->db_render_state);
}
}
/**
* Do glClear by drawing a quadrilateral.
* The vertices of the quad will be computed from the
* ctx->DrawBuffer->_X/Ymin/max fields.
*/
static void
clear_with_quad(struct gl_context *ctx, unsigned clear_buffers)
{
struct st_context *st = st_context(ctx);
struct cso_context *cso = st->cso_context;
const struct gl_framebuffer *fb = ctx->DrawBuffer;
const GLfloat fb_width = (GLfloat) fb->Width;
const GLfloat fb_height = (GLfloat) fb->Height;
const GLfloat x0 = (GLfloat) ctx->DrawBuffer->_Xmin / fb_width * 2.0f - 1.0f;
const GLfloat x1 = (GLfloat) ctx->DrawBuffer->_Xmax / fb_width * 2.0f - 1.0f;
const GLfloat y0 = (GLfloat) ctx->DrawBuffer->_Ymin / fb_height * 2.0f - 1.0f;
const GLfloat y1 = (GLfloat) ctx->DrawBuffer->_Ymax / fb_height * 2.0f - 1.0f;
unsigned num_layers =
util_framebuffer_get_num_layers(&st->state.framebuffer);
/*
printf("%s %s%s%s %f,%f %f,%f\n", __func__,
color ? "color, " : "",
depth ? "depth, " : "",
stencil ? "stencil" : "",
x0, y0,
x1, y1);
*/
cso_save_state(cso, (CSO_BIT_BLEND |
CSO_BIT_STENCIL_REF |
CSO_BIT_DEPTH_STENCIL_ALPHA |
CSO_BIT_RASTERIZER |
CSO_BIT_SAMPLE_MASK |
CSO_BIT_MIN_SAMPLES |
CSO_BIT_VIEWPORT |
CSO_BIT_STREAM_OUTPUTS |
CSO_BIT_VERTEX_ELEMENTS |
CSO_BIT_AUX_VERTEX_BUFFER_SLOT |
CSO_BIT_PAUSE_QUERIES |
CSO_BITS_ALL_SHADERS));
/* blend state: RGBA masking */
{
struct pipe_blend_state blend;
memset(&blend, 0, sizeof(blend));
if (clear_buffers & PIPE_CLEAR_COLOR) {
int num_buffers = ctx->Extensions.EXT_draw_buffers2 ?
ctx->DrawBuffer->_NumColorDrawBuffers : 1;
int i;
blend.independent_blend_enable = num_buffers > 1;
for (i = 0; i < num_buffers; i++) {
if (!(clear_buffers & (PIPE_CLEAR_COLOR0 << i)))
continue;
if (ctx->Color.ColorMask[i][0])
blend.rt[i].colormask |= PIPE_MASK_R;
if (ctx->Color.ColorMask[i][1])
blend.rt[i].colormask |= PIPE_MASK_G;
if (ctx->Color.ColorMask[i][2])
blend.rt[i].colormask |= PIPE_MASK_B;
if (ctx->Color.ColorMask[i][3])
blend.rt[i].colormask |= PIPE_MASK_A;
}
if (ctx->Color.DitherFlag)
blend.dither = 1;
}
cso_set_blend(cso, &blend);
}
/* depth_stencil state: always pass/set to ref value */
{
struct pipe_depth_stencil_alpha_state depth_stencil;
memset(&depth_stencil, 0, sizeof(depth_stencil));
if (clear_buffers & PIPE_CLEAR_DEPTH) {
depth_stencil.depth.enabled = 1;
depth_stencil.depth.writemask = 1;
depth_stencil.depth.func = PIPE_FUNC_ALWAYS;
}
if (clear_buffers & PIPE_CLEAR_STENCIL) {
struct pipe_stencil_ref stencil_ref;
memset(&stencil_ref, 0, sizeof(stencil_ref));
depth_stencil.stencil[0].enabled = 1;
depth_stencil.stencil[0].func = PIPE_FUNC_ALWAYS;
depth_stencil.stencil[0].fail_op = PIPE_STENCIL_OP_REPLACE;
depth_stencil.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
depth_stencil.stencil[0].zfail_op = PIPE_STENCIL_OP_REPLACE;
depth_stencil.stencil[0].valuemask = 0xff;
depth_stencil.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;
stencil_ref.ref_value[0] = ctx->Stencil.Clear;
cso_set_stencil_ref(cso, &stencil_ref);
}
cso_set_depth_stencil_alpha(cso, &depth_stencil);
}
cso_set_vertex_elements(cso, 2, st->util_velems);
cso_set_stream_outputs(cso, 0, NULL, NULL);
cso_set_sample_mask(cso, ~0);
cso_set_min_samples(cso, 1);
cso_set_rasterizer(cso, &st->clear.raster);
/* viewport state: viewport matching window dims */
cso_set_viewport_dims(st->cso_context, fb_width, fb_height,
st_fb_orientation(fb) == Y_0_TOP);
set_fragment_shader(st);
cso_set_tessctrl_shader_handle(cso, NULL);
cso_set_tesseval_shader_handle(cso, NULL);
if (num_layers > 1)
set_vertex_shader_layered(st);
else
set_vertex_shader(st);
/* draw quad matching scissor rect.
*
* Note: if we're only clearing depth/stencil we still setup vertices
* with color, but they'll be ignored.
*
* We can't translate the clear color to the colorbuffer format,
* because different colorbuffers may have different formats.
*/
if (!st_draw_quad(st, x0, y0, x1, y1,
ctx->Depth.Clear * 2.0f - 1.0f,
0.0f, 0.0f, 0.0f, 0.0f,
(const float *) &ctx->Color.ClearColor.f,
num_layers)) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glClear");
}
/* Restore pipe state */
cso_restore_state(cso);
}
static void si_clear(struct pipe_context *ctx, unsigned buffers,
const union pipe_color_union *color,
double depth, unsigned stencil)
{
struct si_context *sctx = (struct si_context *)ctx;
struct pipe_framebuffer_state *fb = &sctx->framebuffer.state;
struct pipe_surface *zsbuf = fb->zsbuf;
struct si_texture *zstex =
zsbuf ? (struct si_texture*)zsbuf->texture : NULL;
if (buffers & PIPE_CLEAR_COLOR) {
si_do_fast_color_clear(sctx, &buffers, color);
if (!buffers)
return; /* all buffers have been fast cleared */
/* These buffers cannot use fast clear, make sure to disable expansion. */
for (unsigned i = 0; i < fb->nr_cbufs; i++) {
struct si_texture *tex;
/* If not clearing this buffer, skip. */
if (!(buffers & (PIPE_CLEAR_COLOR0 << i)) || !fb->cbufs[i])
continue;
tex = (struct si_texture *)fb->cbufs[i]->texture;
if (tex->surface.fmask_size == 0)
tex->dirty_level_mask &= ~(1 << fb->cbufs[i]->u.tex.level);
}
}
if (zstex &&
si_htile_enabled(zstex, zsbuf->u.tex.level) &&
zsbuf->u.tex.first_layer == 0 &&
zsbuf->u.tex.last_layer == util_max_layer(&zstex->buffer.b.b, 0)) {
/* TC-compatible HTILE only supports depth clears to 0 or 1. */
if (buffers & PIPE_CLEAR_DEPTH &&
(!zstex->tc_compatible_htile ||
depth == 0 || depth == 1)) {
/* Need to disable EXPCLEAR temporarily if clearing
* to a new value. */
if (!zstex->depth_cleared || zstex->depth_clear_value != depth) {
sctx->db_depth_disable_expclear = true;
}
if (zstex->depth_clear_value != (float)depth) {
/* Update DB_DEPTH_CLEAR. */
zstex->depth_clear_value = depth;
sctx->framebuffer.dirty_zsbuf = true;
si_mark_atom_dirty(sctx, &sctx->atoms.s.framebuffer);
}
sctx->db_depth_clear = true;
si_mark_atom_dirty(sctx, &sctx->atoms.s.db_render_state);
}
/* TC-compatible HTILE only supports stencil clears to 0. */
if (buffers & PIPE_CLEAR_STENCIL &&
(!zstex->tc_compatible_htile || stencil == 0)) {
stencil &= 0xff;
/* Need to disable EXPCLEAR temporarily if clearing
* to a new value. */
if (!zstex->stencil_cleared || zstex->stencil_clear_value != stencil) {
sctx->db_stencil_disable_expclear = true;
}
if (zstex->stencil_clear_value != (uint8_t)stencil) {
/* Update DB_STENCIL_CLEAR. */
zstex->stencil_clear_value = stencil;
sctx->framebuffer.dirty_zsbuf = true;
si_mark_atom_dirty(sctx, &sctx->atoms.s.framebuffer);
}
sctx->db_stencil_clear = true;
si_mark_atom_dirty(sctx, &sctx->atoms.s.db_render_state);
}
/* TODO: Find out what's wrong here. Fast depth clear leads to
* corruption in ARK: Survival Evolved, but that may just be
* a coincidence and the root cause is elsewhere.
*
* The corruption can be fixed by putting the DB flush before
* or after the depth clear. (surprisingly)
*
* https://bugs.freedesktop.org/show_bug.cgi?id=102955 (apitrace)
*
* This hack decreases back-to-back ClearDepth performance.
*/
if ((sctx->db_depth_clear || sctx->db_stencil_clear) &&
sctx->screen->options.clear_db_cache_before_clear)
sctx->flags |= SI_CONTEXT_FLUSH_AND_INV_DB;
}
si_blitter_begin(sctx, SI_CLEAR);
util_blitter_clear(sctx->blitter, fb->width, fb->height,
util_framebuffer_get_num_layers(fb),
buffers, color, depth, stencil);
si_blitter_end(sctx);
if (sctx->db_depth_clear) {
sctx->db_depth_clear = false;
sctx->db_depth_disable_expclear = false;
zstex->depth_cleared = true;
si_mark_atom_dirty(sctx, &sctx->atoms.s.db_render_state);
}
if (sctx->db_stencil_clear) {
sctx->db_stencil_clear = false;
sctx->db_stencil_disable_expclear = false;
zstex->stencil_cleared = true;
si_mark_atom_dirty(sctx, &sctx->atoms.s.db_render_state);
}
}
