78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
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#pragma once
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#ifdef KINC_KONG
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#include <kinc/global.h>
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#include <kinc/backend/graphics4/constantbuffer.h>
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#include <kinc/math/matrix.h>
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#include <kinc/math/vector.h>
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/*! \file constantbuffer.h
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\brief Provides support for managing buffers of constant-data for shaders.
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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 struct kinc_g4_constant_buffer {
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kinc_g4_constant_buffer_impl impl;
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} kinc_g4_constant_buffer;
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/// <summary>
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/// Initializes a constant-buffer.
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/// </summary>
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/// <param name="buffer">The buffer to initialize</param>
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/// <param name="size">The size of the constant-data in the buffer in bytes</param>
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KINC_FUNC void kinc_g4_constant_buffer_init(kinc_g4_constant_buffer *buffer, size_t size);
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/// <summary>
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/// Destroys a buffer.
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/// </summary>
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/// <param name="buffer">The buffer to destroy</param>
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KINC_FUNC void kinc_g4_constant_buffer_destroy(kinc_g4_constant_buffer *buffer);
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/// <summary>
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/// Locks all of a constant-buffer to modify its contents.
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/// </summary>
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/// <param name="buffer">The buffer to lock</param>
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/// <returns>The contents of the buffer</returns>
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KINC_FUNC uint8_t *kinc_g4_constant_buffer_lock_all(kinc_g4_constant_buffer *buffer);
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/// <summary>
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/// Locks part of a constant-buffer to modify its contents.
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/// </summary>
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/// <param name="buffer">The buffer to lock</param>
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/// <param name="start">The offset of where to start the lock in bytes</param>
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/// <param name="count">The number of bytes to lock</param>
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/// <returns>The contents of the buffer, starting at start</returns>
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KINC_FUNC uint8_t *kinc_g4_constant_buffer_lock(kinc_g4_constant_buffer *buffer, size_t start, size_t count);
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/// <summary>
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/// Unlocks a constant-buffer so the changed contents can be used.
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/// </summary>
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/// <param name="buffer">The buffer to unlock</param>
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KINC_FUNC void kinc_g4_constant_buffer_unlock_all(kinc_g4_constant_buffer *buffer);
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/// <summary>
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/// Unlocks parts of a constant-buffer so the changed contents can be used.
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/// </summary>
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/// <param name="buffer">The buffer to unlock</param>
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/// /// <param name="count">The number of bytes to unlock, starting from the start-index from the previous lock-call</param>
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KINC_FUNC void kinc_g4_constant_buffer_unlock(kinc_g4_constant_buffer *buffer, size_t count);
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/// <summary>
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/// Figures out the size of the constant-data in the buffer.
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/// </summary>
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/// <param name="buffer">The buffer to figure out the size for</param>
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/// <returns>Returns the size of the constant-data in the buffer in bytes</returns>
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KINC_FUNC size_t kinc_g4_constant_buffer_size(kinc_g4_constant_buffer *buffer);
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#ifdef __cplusplus
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}
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#endif
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#endif
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