#define LP_BLD_SAMPLE_H
+#include "pipe/p_format.h"
+#include "util/u_debug.h"
#include "gallivm/lp_bld.h"
+#include "gallivm/lp_bld_type.h"
+#include "gallivm/lp_bld_swizzle.h"
+
struct pipe_resource;
+struct pipe_sampler_view;
struct pipe_sampler_state;
struct util_format_description;
struct lp_type;
/**
- * Sampler static state.
+ * Helper struct holding all derivatives needed for sampling
+ */
+struct lp_derivatives
+{
+ LLVMValueRef ddx[3];
+ LLVMValueRef ddy[3];
+};
+
+
+enum lp_sampler_lod_property {
+ LP_SAMPLER_LOD_SCALAR,
+ LP_SAMPLER_LOD_PER_ELEMENT,
+ LP_SAMPLER_LOD_PER_QUAD
+};
+
+
+/**
+ * Texture static state.
*
- * These are the bits of state from pipe_resource and pipe_sampler_state that
+ * These are the bits of state from pipe_resource/pipe_sampler_view that
* are embedded in the generated code.
*/
-struct lp_sampler_static_state
+struct lp_static_texture_state
{
- /* pipe_texture's state */
+ /* pipe_sampler_view's state */
enum pipe_format format;
- unsigned target:2;
- unsigned pot_width:1;
+ unsigned swizzle_r:3; /**< PIPE_SWIZZLE_* */
+ unsigned swizzle_g:3;
+ unsigned swizzle_b:3;
+ unsigned swizzle_a:3;
+
+ /* pipe_texture's state */
+ unsigned target:4; /**< PIPE_TEXTURE_* */
+ unsigned pot_width:1; /**< is the width a power of two? */
unsigned pot_height:1;
unsigned pot_depth:1;
+ unsigned level_zero_only:1;
+};
+
+/**
+ * Sampler static state.
+ *
+ * These are the bits of state from pipe_sampler_state that
+ * are embedded in the generated code.
+ */
+struct lp_static_sampler_state
+{
/* pipe_sampler_state's state */
unsigned wrap_s:3;
unsigned wrap_t:3;
unsigned compare_mode:1;
unsigned compare_func:3;
unsigned normalized_coords:1;
- float lod_bias, min_lod, max_lod;
- float border_color[4];
+ unsigned min_max_lod_equal:1; /**< min_lod == max_lod ? */
+ unsigned lod_bias_non_zero:1;
+ unsigned apply_min_lod:1; /**< min_lod > 0 ? */
+ unsigned apply_max_lod:1; /**< max_lod < last_level ? */
+
+ /* Hacks */
+ unsigned force_nearest_s:1;
+ unsigned force_nearest_t:1;
};
/**
* Sampler dynamic state.
*
- * These are the bits of state from pipe_resource and pipe_sampler_state that
- * are computed in runtime.
+ * These are the bits of state from pipe_resource/pipe_sampler_view
+ * as well as from sampler state that are computed at runtime.
*
* There are obtained through callbacks, as we don't want to tie the texture
* sampling code generation logic to any particular texture layout or pipe
*/
struct lp_sampler_dynamic_state
{
+ /* First callbacks for sampler view state */
- /** Obtain the base texture width. */
+ /** Obtain the base texture width (or number of elements) (returns int32) */
LLVMValueRef
- (*width)( struct lp_sampler_dynamic_state *state,
- LLVMBuilderRef builder,
- unsigned unit);
+ (*width)( const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm,
+ unsigned texture_unit);
- /** Obtain the base texture height. */
+ /** Obtain the base texture height (returns int32) */
LLVMValueRef
- (*height)( struct lp_sampler_dynamic_state *state,
- LLVMBuilderRef builder,
- unsigned unit);
+ (*height)( const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm,
+ unsigned texture_unit);
- /** Obtain the base texture depth. */
+ /** Obtain the base texture depth (or array size) (returns int32) */
LLVMValueRef
- (*depth)( struct lp_sampler_dynamic_state *state,
- LLVMBuilderRef builder,
- unsigned unit);
+ (*depth)( const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm,
+ unsigned texture_unit);
- /** Obtain the number of mipmap levels (minus one). */
+ /** Obtain the first mipmap level (base level) (returns int32) */
LLVMValueRef
- (*last_level)( struct lp_sampler_dynamic_state *state,
- LLVMBuilderRef builder,
- unsigned unit);
+ (*first_level)( const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm,
+ unsigned texture_unit);
+ /** Obtain the number of mipmap levels minus one (returns int32) */
LLVMValueRef
- (*row_stride)( struct lp_sampler_dynamic_state *state,
- LLVMBuilderRef builder,
- unsigned unit);
+ (*last_level)( const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm,
+ unsigned texture_unit);
+ /** Obtain stride in bytes between image rows/blocks (returns int32) */
LLVMValueRef
- (*data_ptr)( struct lp_sampler_dynamic_state *state,
- LLVMBuilderRef builder,
- unsigned unit);
+ (*row_stride)( const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm,
+ unsigned texture_unit);
+
+ /** Obtain stride in bytes between image slices (returns int32) */
+ LLVMValueRef
+ (*img_stride)( const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm,
+ unsigned texture_unit);
+
+ /** Obtain pointer to base of texture */
+ LLVMValueRef
+ (*base_ptr)( const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm,
+ unsigned texture_unit);
+
+ /** Obtain pointer to array of mipmap offsets */
+ LLVMValueRef
+ (*mip_offsets)( const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm,
+ unsigned texture_unit);
+
+ /* These are callbacks for sampler state */
+ /** Obtain texture min lod (returns float) */
+ LLVMValueRef
+ (*min_lod)(const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm, unsigned sampler_unit);
+
+ /** Obtain texture max lod (returns float) */
+ LLVMValueRef
+ (*max_lod)(const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm, unsigned sampler_unit);
+
+ /** Obtain texture lod bias (returns float) */
+ LLVMValueRef
+ (*lod_bias)(const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm, unsigned sampler_unit);
+
+ /** Obtain texture border color (returns ptr to float[4]) */
+ LLVMValueRef
+ (*border_color)(const struct lp_sampler_dynamic_state *state,
+ struct gallivm_state *gallivm, unsigned sampler_unit);
};
+/**
+ * Keep all information for sampling code generation in a single place.
+ */
+struct lp_build_sample_context
+{
+ struct gallivm_state *gallivm;
+
+ const struct lp_static_texture_state *static_texture_state;
+ const struct lp_static_sampler_state *static_sampler_state;
+
+ struct lp_sampler_dynamic_state *dynamic_state;
+
+ const struct util_format_description *format_desc;
+
+ /* See texture_dims() */
+ unsigned dims;
+
+ /** SIMD vector width */
+ unsigned vector_width;
+
+ /** number of lod values (valid are 1, length/4, length) */
+ unsigned num_lods;
+
+ /** regular scalar float type */
+ struct lp_type float_type;
+ struct lp_build_context float_bld;
+
+ /** float vector type */
+ struct lp_build_context float_vec_bld;
+
+ /** regular scalar int type */
+ struct lp_type int_type;
+ struct lp_build_context int_bld;
+
+ /** Incoming coordinates type and build context */
+ struct lp_type coord_type;
+ struct lp_build_context coord_bld;
+
+ /** Signed integer coordinates */
+ struct lp_type int_coord_type;
+ struct lp_build_context int_coord_bld;
+
+ /** Unsigned integer texture size */
+ struct lp_type int_size_in_type;
+ struct lp_build_context int_size_in_bld;
+
+ /** Float incoming texture size */
+ struct lp_type float_size_in_type;
+ struct lp_build_context float_size_in_bld;
+
+ /** Unsigned integer texture size (might be per quad) */
+ struct lp_type int_size_type;
+ struct lp_build_context int_size_bld;
+
+ /** Float texture size (might be per quad) */
+ struct lp_type float_size_type;
+ struct lp_build_context float_size_bld;
+
+ /** Output texels type and build context */
+ struct lp_type texel_type;
+ struct lp_build_context texel_bld;
+
+ /** Float level type */
+ struct lp_type levelf_type;
+ struct lp_build_context levelf_bld;
+
+ /** Int level type */
+ struct lp_type leveli_type;
+ struct lp_build_context leveli_bld;
+
+ /* Common dynamic state values */
+ LLVMValueRef row_stride_array;
+ LLVMValueRef img_stride_array;
+ LLVMValueRef base_ptr;
+ LLVMValueRef mip_offsets;
+
+ /** Integer vector with texture width, height, depth */
+ LLVMValueRef int_size;
+
+ LLVMValueRef border_color_clamped;
+};
+
+
+
+/**
+ * We only support a few wrap modes in lp_build_sample_wrap_linear_int() at
+ * this time. Return whether the given mode is supported by that function.
+ */
+static INLINE boolean
+lp_is_simple_wrap_mode(unsigned mode)
+{
+ switch (mode) {
+ case PIPE_TEX_WRAP_REPEAT:
+ case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+
+static INLINE void
+apply_sampler_swizzle(struct lp_build_sample_context *bld,
+ LLVMValueRef *texel)
+{
+ unsigned char swizzles[4];
+
+ swizzles[0] = bld->static_texture_state->swizzle_r;
+ swizzles[1] = bld->static_texture_state->swizzle_g;
+ swizzles[2] = bld->static_texture_state->swizzle_b;
+ swizzles[3] = bld->static_texture_state->swizzle_a;
+
+ lp_build_swizzle_soa_inplace(&bld->texel_bld, texel, swizzles);
+}
+
+/*
+ * not really dimension as such, this indicates the amount of
+ * "normal" texture coords subject to minification, wrapping etc.
+ */
+static INLINE unsigned
+texture_dims(enum pipe_texture_target tex)
+{
+ switch (tex) {
+ case PIPE_TEXTURE_1D:
+ case PIPE_TEXTURE_1D_ARRAY:
+ case PIPE_BUFFER:
+ return 1;
+ case PIPE_TEXTURE_2D:
+ case PIPE_TEXTURE_2D_ARRAY:
+ case PIPE_TEXTURE_RECT:
+ case PIPE_TEXTURE_CUBE:
+ return 2;
+ case PIPE_TEXTURE_CUBE_ARRAY:
+ assert(0);
+ return 2;
+ case PIPE_TEXTURE_3D:
+ return 3;
+ default:
+ assert(0 && "bad texture target in texture_dims()");
+ return 2;
+ }
+}
+
+
+boolean
+lp_sampler_wrap_mode_uses_border_color(unsigned mode,
+ unsigned min_img_filter,
+ unsigned mag_img_filter);
+
/**
* Derive the sampler static state.
*/
void
-lp_sampler_static_state(struct lp_sampler_static_state *state,
- const struct pipe_resource *texture,
- const struct pipe_sampler_state *sampler);
+lp_sampler_static_sampler_state(struct lp_static_sampler_state *state,
+ const struct pipe_sampler_state *sampler);
+
+
+void
+lp_sampler_static_texture_state(struct lp_static_texture_state *state,
+ const struct pipe_sampler_view *view);
+
+
+void
+lp_build_lod_selector(struct lp_build_sample_context *bld,
+ unsigned texture_index,
+ unsigned sampler_index,
+ LLVMValueRef s,
+ LLVMValueRef t,
+ LLVMValueRef r,
+ LLVMValueRef cube_rho,
+ const struct lp_derivatives *derivs,
+ LLVMValueRef lod_bias, /* optional */
+ LLVMValueRef explicit_lod, /* optional */
+ unsigned mip_filter,
+ LLVMValueRef *out_lod_ipart,
+ LLVMValueRef *out_lod_fpart,
+ LLVMValueRef *out_lod_positive);
+void
+lp_build_nearest_mip_level(struct lp_build_sample_context *bld,
+ unsigned texture_unit,
+ LLVMValueRef lod,
+ LLVMValueRef *level_out,
+ LLVMValueRef *out_of_bounds);
+
+void
+lp_build_linear_mip_levels(struct lp_build_sample_context *bld,
+ unsigned texture_unit,
+ LLVMValueRef lod_ipart,
+ LLVMValueRef *lod_fpart_inout,
+ LLVMValueRef *level0_out,
+ LLVMValueRef *level1_out);
LLVMValueRef
-lp_build_gather(LLVMBuilderRef builder,
- unsigned length,
- unsigned src_width,
- unsigned dst_width,
- LLVMValueRef base_ptr,
- LLVMValueRef offsets);
+lp_build_get_mipmap_level(struct lp_build_sample_context *bld,
+ LLVMValueRef level);
LLVMValueRef
+lp_build_get_mip_offsets(struct lp_build_sample_context *bld,
+ LLVMValueRef level);
+
+
+void
+lp_build_mipmap_level_sizes(struct lp_build_sample_context *bld,
+ LLVMValueRef ilevel,
+ LLVMValueRef *out_size_vec,
+ LLVMValueRef *row_stride_vec,
+ LLVMValueRef *img_stride_vec);
+
+
+void
+lp_build_extract_image_sizes(struct lp_build_sample_context *bld,
+ struct lp_build_context *size_bld,
+ struct lp_type coord_type,
+ LLVMValueRef size,
+ LLVMValueRef *out_width,
+ LLVMValueRef *out_height,
+ LLVMValueRef *out_depth);
+
+
+void
+lp_build_unnormalized_coords(struct lp_build_sample_context *bld,
+ LLVMValueRef flt_size,
+ LLVMValueRef *s,
+ LLVMValueRef *t,
+ LLVMValueRef *r);
+
+
+void
+lp_build_cube_lookup(struct lp_build_sample_context *bld,
+ LLVMValueRef *coords,
+ const struct lp_derivatives *derivs, /* optional */
+ LLVMValueRef *rho,
+ boolean need_derivs);
+
+
+void
+lp_build_sample_partial_offset(struct lp_build_context *bld,
+ unsigned block_length,
+ LLVMValueRef coord,
+ LLVMValueRef stride,
+ LLVMValueRef *out_offset,
+ LLVMValueRef *out_i);
+
+
+void
lp_build_sample_offset(struct lp_build_context *bld,
const struct util_format_description *format_desc,
LLVMValueRef x,
LLVMValueRef y,
LLVMValueRef z,
LLVMValueRef y_stride,
- LLVMValueRef z_stride);
+ LLVMValueRef z_stride,
+ LLVMValueRef *out_offset,
+ LLVMValueRef *out_i,
+ LLVMValueRef *out_j);
void
-lp_build_sample_soa(LLVMBuilderRef builder,
- const struct lp_sampler_static_state *static_state,
- struct lp_sampler_dynamic_state *dynamic_state,
+lp_build_sample_soa(struct gallivm_state *gallivm,
+ const struct lp_static_texture_state *static_texture_state,
+ const struct lp_static_sampler_state *static_sampler_state,
+ struct lp_sampler_dynamic_state *dynamic_texture_state,
struct lp_type fp_type,
- unsigned unit,
- unsigned num_coords,
+ boolean is_fetch,
+ unsigned texture_index,
+ unsigned sampler_index,
+ const LLVMValueRef *coords,
+ const LLVMValueRef *offsets,
+ const struct lp_derivatives *derivs,
+ LLVMValueRef lod_bias,
+ LLVMValueRef explicit_lod,
+ enum lp_sampler_lod_property lod_property,
+ LLVMValueRef texel_out[4]);
+
+
+void
+lp_build_coord_repeat_npot_linear(struct lp_build_sample_context *bld,
+ LLVMValueRef coord_f,
+ LLVMValueRef length_i,
+ LLVMValueRef length_f,
+ LLVMValueRef *coord0_i,
+ LLVMValueRef *weight_f);
+
+
+void
+lp_build_size_query_soa(struct gallivm_state *gallivm,
+ const struct lp_static_texture_state *static_state,
+ struct lp_sampler_dynamic_state *dynamic_state,
+ struct lp_type int_type,
+ unsigned texture_unit,
+ unsigned target,
+ boolean is_sviewinfo,
+ enum lp_sampler_lod_property lod_property,
+ LLVMValueRef explicit_lod,
+ LLVMValueRef *sizes_out);
+
+void
+lp_build_sample_nop(struct gallivm_state *gallivm,
+ struct lp_type type,
const LLVMValueRef *coords,
- LLVMValueRef lodbias,
- LLVMValueRef *texel);
+ LLVMValueRef texel_out[4]);
+
+LLVMValueRef
+lp_build_minify(struct lp_build_context *bld,
+ LLVMValueRef base_size,
+ LLVMValueRef level);
#endif /* LP_BLD_SAMPLE_H */
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