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panfrost: Add a panfrost_sampler_desc_init() helper

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It just makes sense to group all HW descriptor initilization logic in
pan_cmdstream.c, so let's move this code out of
panfrost_create_sampler_state().

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4083>
This commit is contained in:
Boris Brezillon
2020-03-05 16:26:56 +01:00
parent b02f97c875
commit 2b946a1d2b
3 changed files with 78 additions and 86 deletions
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76
src/gallium/drivers/panfrost/pan_cmdstream.c
View File

@@ -120,7 +120,7 @@ panfrost_shader_meta_init(struct panfrost_context *ctx,
meta->midgard1.uniform_buffer_count = panfrost_ubo_count(ctx, st);
}
unsigned
static unsigned
panfrost_translate_compare_func(enum pipe_compare_func in)
{
switch (in) {
@@ -186,6 +186,80 @@ panfrost_translate_stencil_op(enum pipe_stencil_op in)
}
}
static unsigned
translate_tex_wrap(enum pipe_tex_wrap w)
{
switch (w) {
case PIPE_TEX_WRAP_REPEAT:
return MALI_WRAP_REPEAT;
case PIPE_TEX_WRAP_CLAMP:
return MALI_WRAP_CLAMP;
case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
return MALI_WRAP_CLAMP_TO_EDGE;
case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
return MALI_WRAP_CLAMP_TO_BORDER;
case PIPE_TEX_WRAP_MIRROR_REPEAT:
return MALI_WRAP_MIRRORED_REPEAT;
case PIPE_TEX_WRAP_MIRROR_CLAMP:
return MALI_WRAP_MIRRORED_CLAMP;
case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
return MALI_WRAP_MIRRORED_CLAMP_TO_EDGE;
case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
return MALI_WRAP_MIRRORED_CLAMP_TO_BORDER;
default:
unreachable("Invalid wrap");
}
}
void panfrost_sampler_desc_init(const struct pipe_sampler_state *cso,
struct mali_sampler_descriptor *hw)
{
unsigned func = panfrost_translate_compare_func(cso->compare_func);
bool min_nearest = cso->min_img_filter == PIPE_TEX_FILTER_NEAREST;
bool mag_nearest = cso->mag_img_filter == PIPE_TEX_FILTER_NEAREST;
bool mip_linear = cso->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR;
unsigned min_filter = min_nearest ? MALI_SAMP_MIN_NEAREST : 0;
unsigned mag_filter = mag_nearest ? MALI_SAMP_MAG_NEAREST : 0;
unsigned mip_filter = mip_linear ?
(MALI_SAMP_MIP_LINEAR_1 | MALI_SAMP_MIP_LINEAR_2) : 0;
unsigned normalized = cso->normalized_coords ? MALI_SAMP_NORM_COORDS : 0;
*hw = (struct mali_sampler_descriptor) {
.filter_mode = min_filter | mag_filter | mip_filter |
normalized,
.wrap_s = translate_tex_wrap(cso->wrap_s),
.wrap_t = translate_tex_wrap(cso->wrap_t),
.wrap_r = translate_tex_wrap(cso->wrap_r),
.compare_func = panfrost_flip_compare_func(func),
.border_color = {
cso->border_color.f[0],
cso->border_color.f[1],
cso->border_color.f[2],
cso->border_color.f[3]
},
.min_lod = FIXED_16(cso->min_lod, false), /* clamp at 0 */
.max_lod = FIXED_16(cso->max_lod, false),
.lod_bias = FIXED_16(cso->lod_bias, true), /* can be negative */
.seamless_cube_map = cso->seamless_cube_map,
};
/* If necessary, we disable mipmapping in the sampler descriptor by
* clamping the LOD as tight as possible (from 0 to epsilon,
* essentially -- remember these are fixed point numbers, so
* epsilon=1/256) */
if (cso->min_mip_filter == PIPE_TEX_MIPFILTER_NONE)
hw->max_lod = hw->min_lod + 1;
}
static void
panfrost_make_stencil_state(const struct pipe_stencil_state *in,
struct mali_stencil_test *out)

4
src/gallium/drivers/panfrost/pan_cmdstream.h
View File

@@ -32,8 +32,8 @@
#include "pan_job.h"
unsigned
panfrost_translate_compare_func(enum pipe_compare_func in);
void panfrost_sampler_desc_init(const struct pipe_sampler_state *cso,
struct mali_sampler_descriptor *hw);
void
panfrost_vt_attach_framebuffer(struct panfrost_context *ctx,

84
src/gallium/drivers/panfrost/pan_context.c
View File

@@ -174,39 +174,6 @@ panfrost_emit_vertex_payload(struct panfrost_context *ctx)
memcpy(&ctx->payloads[PIPE_SHADER_COMPUTE], &payload, sizeof(payload));
}
static unsigned
translate_tex_wrap(enum pipe_tex_wrap w)
{
switch (w) {
case PIPE_TEX_WRAP_REPEAT:
return MALI_WRAP_REPEAT;
case PIPE_TEX_WRAP_CLAMP:
return MALI_WRAP_CLAMP;
case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
return MALI_WRAP_CLAMP_TO_EDGE;
case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
return MALI_WRAP_CLAMP_TO_BORDER;
case PIPE_TEX_WRAP_MIRROR_REPEAT:
return MALI_WRAP_MIRRORED_REPEAT;
case PIPE_TEX_WRAP_MIRROR_CLAMP:
return MALI_WRAP_MIRRORED_CLAMP;
case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
return MALI_WRAP_MIRRORED_CLAMP_TO_EDGE;
case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
return MALI_WRAP_MIRRORED_CLAMP_TO_BORDER;
default:
unreachable("Invalid wrap");
}
}
bool
panfrost_writes_point_size(struct panfrost_context *ctx)
{
@@ -925,56 +892,7 @@ panfrost_create_sampler_state(
struct panfrost_sampler_state *so = CALLOC_STRUCT(panfrost_sampler_state);
so->base = *cso;
/* sampler_state corresponds to mali_sampler_descriptor, which we can generate entirely here */
bool min_nearest = cso->min_img_filter == PIPE_TEX_FILTER_NEAREST;
bool mag_nearest = cso->mag_img_filter == PIPE_TEX_FILTER_NEAREST;
bool mip_linear = cso->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR;
unsigned min_filter = min_nearest ? MALI_SAMP_MIN_NEAREST : 0;
unsigned mag_filter = mag_nearest ? MALI_SAMP_MAG_NEAREST : 0;
unsigned mip_filter = mip_linear ?
(MALI_SAMP_MIP_LINEAR_1 | MALI_SAMP_MIP_LINEAR_2) : 0;
unsigned normalized = cso->normalized_coords ? MALI_SAMP_NORM_COORDS : 0;
struct mali_sampler_descriptor sampler_descriptor = {
.filter_mode = min_filter | mag_filter | mip_filter | normalized,
.wrap_s = translate_tex_wrap(cso->wrap_s),
.wrap_t = translate_tex_wrap(cso->wrap_t),
.wrap_r = translate_tex_wrap(cso->wrap_r),
.compare_func = panfrost_flip_compare_func(
panfrost_translate_compare_func(
cso->compare_func)),
.border_color = {
cso->border_color.f[0],
cso->border_color.f[1],
cso->border_color.f[2],
cso->border_color.f[3]
},
.min_lod = FIXED_16(cso->min_lod, false), /* clamp at 0 */
.max_lod = FIXED_16(cso->max_lod, false),
.lod_bias = FIXED_16(cso->lod_bias, true), /* can be negative */
.seamless_cube_map = cso->seamless_cube_map,
};
/* If necessary, we disable mipmapping in the sampler descriptor by
* clamping the LOD as tight as possible (from 0 to epsilon,
* essentially -- remember these are fixed point numbers, so
* epsilon=1/256) */
if (cso->min_mip_filter == PIPE_TEX_MIPFILTER_NONE) {
sampler_descriptor.max_lod = sampler_descriptor.min_lod;
/* Enforce that there is something in the middle by adding epsilon*/
if (sampler_descriptor.min_lod == sampler_descriptor.max_lod)
sampler_descriptor.max_lod++;
/* Sanity check */
assert(sampler_descriptor.max_lod > sampler_descriptor.min_lod);
}
so->hw = sampler_descriptor;
panfrost_sampler_desc_init(cso, &so->hw);
return so;
}