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ilo: add support for texture buffer objects 

Take care of sampler views that have buffers as the underlying resources.
Update caps related to TBOs.
This commit is contained in:
Chia-I Wu 2013-05-23 12:50:14 +08:00
parent 441aa9326a
commit fb40aca879
2 changed files with 32 additions and 10 deletions
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34
src/gallium/drivers/ilo/ilo_gpe_gen7.c
View File

@ -1708,19 +1708,37 @@ gen7_emit_view_SURFACE_STATE(const struct ilo_dev_info *dev,
const struct pipe_sampler_view *view,
struct ilo_cp *cp)
{
struct ilo_texture *tex = ilo_texture(view->texture);
struct intel_bo *bo;
uint32_t dw[8];
ILO_GPE_VALID_GEN(dev, 7, 7);
gen7_fill_normal_SURFACE_STATE(dev, tex, view->format,
view->u.tex.first_level,
view->u.tex.last_level - view->u.tex.first_level + 1,
view->u.tex.first_layer,
view->u.tex.last_layer - view->u.tex.first_layer + 1,
false, false, dw, Elements(dw));
if (view->texture->target == PIPE_BUFFER) {
const unsigned elem_size = util_format_get_blocksize(view->format);
const unsigned first_elem = view->u.buf.first_element;
const unsigned num_elems = view->u.buf.last_element - first_elem + 1;
struct ilo_buffer *buf = ilo_buffer(view->texture);
return gen7_emit_SURFACE_STATE(dev, tex->bo, false, dw, Elements(dw), cp);
gen7_fill_buffer_SURFACE_STATE(dev, buf,
first_elem * elem_size, num_elems * elem_size,
elem_size, view->format, false, false, dw, Elements(dw));
bo = buf->bo;
}
else {
struct ilo_texture *tex = ilo_texture(view->texture);
gen7_fill_normal_SURFACE_STATE(dev, tex, view->format,
view->u.tex.first_level,
view->u.tex.last_level - view->u.tex.first_level + 1,
view->u.tex.first_layer,
view->u.tex.last_layer - view->u.tex.first_layer + 1,
false, false, dw, Elements(dw));
bo = tex->bo;
}
return gen7_emit_SURFACE_STATE(dev, bo, false, dw, Elements(dw), cp);
}
static uint32_t

8
src/gallium/drivers/ilo/ilo_screen.c
View File

@ -404,10 +404,11 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
return 0; /* TODO */
case PIPE_CAP_CUBE_MAP_ARRAY:
case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
return false; /* TODO */
case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
return true;
case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
return 0; /* TODO */
return 1;
case PIPE_CAP_TGSI_TEXCOORD:
return false;
case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
@ -416,6 +417,9 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
return false; /* TODO */
case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
return 0;
case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
/* a BRW_SURFACE_BUFFER can have up to 2^27 elements */
return 1 << 27;
default:
return 0;