79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
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#pragma once
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#include <kinc/backend/graphics5/sampler.h>
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#include <kinc/graphics5/pipeline.h>
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/*! \file sampler.h
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\brief Provides functions for sampler objects.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum kinc_g5_texture_addressing {
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KINC_G5_TEXTURE_ADDRESSING_REPEAT,
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KINC_G5_TEXTURE_ADDRESSING_MIRROR,
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KINC_G5_TEXTURE_ADDRESSING_CLAMP,
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KINC_G5_TEXTURE_ADDRESSING_BORDER
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} kinc_g5_texture_addressing_t;
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typedef enum kinc_g5_texture_filter {
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KINC_G5_TEXTURE_FILTER_POINT,
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KINC_G5_TEXTURE_FILTER_LINEAR,
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KINC_G5_TEXTURE_FILTER_ANISOTROPIC
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} kinc_g5_texture_filter_t;
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typedef enum kinc_g5_mipmap_filter {
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KINC_G5_MIPMAP_FILTER_NONE,
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KINC_G5_MIPMAP_FILTER_POINT,
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KINC_G5_MIPMAP_FILTER_LINEAR // linear texture filter + linear mip filter -> trilinear filter
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} kinc_g5_mipmap_filter_t;
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typedef struct kinc_g5_sampler_options {
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kinc_g5_texture_addressing_t u_addressing;
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kinc_g5_texture_addressing_t v_addressing;
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kinc_g5_texture_addressing_t w_addressing;
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kinc_g5_texture_filter_t minification_filter;
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kinc_g5_texture_filter_t magnification_filter;
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kinc_g5_mipmap_filter_t mipmap_filter;
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float lod_min_clamp;
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float lod_max_clamp;
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uint16_t max_anisotropy;
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bool is_comparison;
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kinc_g5_compare_mode_t compare_mode;
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} kinc_g5_sampler_options_t;
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typedef struct kinc_g5_sampler {
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kinc_g5_sampler_impl_t impl;
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} kinc_g5_sampler_t;
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/// <summary>
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/// Initializes the passed options-object with the default-options.
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/// </summary>
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/// <param name="options">The options-object for which the default-options will be set</param>
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KINC_FUNC void kinc_g5_sampler_options_set_defaults(kinc_g5_sampler_options_t *options);
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/// <summary>
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/// Creates a sampler-object.
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///
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/// On platforms such as older OpenGL not all sampler attributes may be available.
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/// </summary>
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/// <param name="sampler">Pointer to the sampler object to initialize</param>
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/// <param name="descriptor">Options for the sampler</param>
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KINC_FUNC void kinc_g5_sampler_init(kinc_g5_sampler_t *sampler, const kinc_g5_sampler_options_t *options);
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/// <summary>
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/// Destroys a sampler-object.
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/// </summary>
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/// <param name="sampler">The sampler-object to destroy</param>
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KINC_FUNC void kinc_g5_sampler_destroy(kinc_g5_sampler_t *sampler);
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#ifdef __cplusplus
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}
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#endif
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