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zink: prepare for shadow-samplers

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Acked-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Erik Faye-Lund
2019-06-20 15:41:37 +02:00
parent 5dfa6be36e
commit 737a2bba35
1 changed files with 22 additions and 1 deletions
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src/gallium/drivers/zink/zink_context.c
+22 -1
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@@ -107,6 +107,22 @@ sampler_address_mode(enum pipe_tex_wrap filter)
unreachable("unexpected wrap");
}
static VkCompareOp
compare_op(enum pipe_compare_func op)
{
switch (op) {
case PIPE_FUNC_NEVER: return VK_COMPARE_OP_NEVER;
case PIPE_FUNC_LESS: return VK_COMPARE_OP_LESS;
case PIPE_FUNC_EQUAL: return VK_COMPARE_OP_EQUAL;
case PIPE_FUNC_LEQUAL: return VK_COMPARE_OP_LESS_OR_EQUAL;
case PIPE_FUNC_GREATER: return VK_COMPARE_OP_GREATER;
case PIPE_FUNC_NOTEQUAL: return VK_COMPARE_OP_NOT_EQUAL;
case PIPE_FUNC_GEQUAL: return VK_COMPARE_OP_GREATER_OR_EQUAL;
case PIPE_FUNC_ALWAYS: return VK_COMPARE_OP_ALWAYS;
}
unreachable("unexpected compare");
}
static void *
zink_create_sampler_state(struct pipe_context *pctx,
const struct pipe_sampler_state *state)
@@ -132,7 +148,12 @@ zink_create_sampler_state(struct pipe_context *pctx,
sci.addressModeV = sampler_address_mode(state->wrap_t);
sci.addressModeW = sampler_address_mode(state->wrap_r);
sci.mipLodBias = state->lod_bias;
sci.compareOp = VK_COMPARE_OP_NEVER; // TODO
if (state->compare_mode == PIPE_TEX_COMPARE_NONE)
sci.compareOp = VK_COMPARE_OP_NEVER;
else
sci.compareOp = compare_op(state->compare_func);
sci.borderColor = VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK; // TODO
sci.unnormalizedCoordinates = !state->normalized_coords;