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ilo: emit 3DSTATE_STENCIL_BUFFER on GEN7+

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Whether HiZ is enalbed or not, separate stencil is supported and enforced on
GEN7+.  Now that we support separate stencil resources, we know how to emit
3DSTATE_STENCIL_BUFFER.
This commit is contained in:
Chia-I Wu
2013-05-10 15:21:27 +08:00
parent 6b894e6900
commit 435aea6f32
2 changed files with 21 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/gallium/drivers/ilo/ilo_3d_pipeline_gen7.c
+8 -1
View File
@@ -545,10 +545,17 @@ gen7_pipeline_wm(struct ilo_3d_pipeline *p,
/* 3DSTATE_DEPTH_BUFFER and 3DSTATE_CLEAR_PARAMS */
if (DIRTY(FRAMEBUFFER) || DIRTY(DEPTH_STENCIL_ALPHA) ||
session->state_bo_changed) {
const bool hiz = false;
p->gen7_3DSTATE_DEPTH_BUFFER(p->dev,
ilo->framebuffer.zsbuf,
ilo->depth_stencil_alpha,
false, p->cp);
hiz, p->cp);
p->gen6_3DSTATE_HIER_DEPTH_BUFFER(p->dev,
(hiz) ? ilo->framebuffer.zsbuf : NULL, p->cp);
p->gen6_3DSTATE_STENCIL_BUFFER(p->dev, ilo->framebuffer.zsbuf, p->cp);
/* TODO */
p->gen6_3DSTATE_CLEAR_PARAMS(p->dev, 0, p->cp);
src/gallium/drivers/ilo/ilo_gpe_gen6.c
+13 -6
View File
@@ -2640,12 +2640,16 @@ gen6_emit_3DSTATE_STENCIL_BUFFER(const struct ilo_dev_info *dev,
ILO_GPE_CMD(0x3, 0x1, 0x0e);
const uint8_t cmd_len = 3;
struct ilo_texture *tex;
uint32_t slice_offset;
uint32_t slice_offset, x_offset, y_offset;
int pitch;
ILO_GPE_VALID_GEN(dev, 6, 7);
if (!surface) {
tex = (surface) ? ilo_texture(surface->texture) : NULL;
if (tex && surface->format != PIPE_FORMAT_S8_UINT)
tex = tex->separate_s8;
if (!tex) {
ilo_cp_begin(cp, cmd_len);
ilo_cp_write(cp, cmd | (cmd_len - 2));
ilo_cp_write(cp, 0);
@@ -2655,16 +2659,19 @@ gen6_emit_3DSTATE_STENCIL_BUFFER(const struct ilo_dev_info *dev,
return;
}
tex = ilo_texture(surface->texture);
/* TODO */
slice_offset = 0;
slice_offset = ilo_texture_get_slice_offset(tex,
surface->u.tex.level, surface->u.tex.first_layer,
&x_offset, &y_offset);
/* XXX X/Y offsets inherit from 3DSTATE_DEPTH_BUFFER */
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 329:
*
* "The pitch must be set to 2x the value computed based on width, as
* the stencil buffer is stored with two rows interleaved."
*
* According to the classic driver, we need to do the same for GEN7+ even
* though the Ivy Bridge PRM does not say anything about it.
*/
pitch = 2 * tex->bo_stride;
assert(pitch > 0 && pitch < 128 * 1024 && pitch % 128 == 0);