141 lines
5.9 KiB
C
141 lines
5.9 KiB
C
#pragma once
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#include <kinc/global.h>
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#include <kinc/backend/graphics5/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_g5_constant_buffer {
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uint8_t *data;
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ConstantBuffer5Impl impl;
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} kinc_g5_constant_buffer_t;
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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_g5_constant_buffer_init(kinc_g5_constant_buffer_t *buffer, int 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_g5_constant_buffer_destroy(kinc_g5_constant_buffer_t *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 void kinc_g5_constant_buffer_lock_all(kinc_g5_constant_buffer_t *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 void kinc_g5_constant_buffer_lock(kinc_g5_constant_buffer_t *buffer, int start, int 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_g5_constant_buffer_unlock(kinc_g5_constant_buffer_t *buffer);
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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 int kinc_g5_constant_buffer_size(kinc_g5_constant_buffer_t *buffer);
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/// <summary>
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/// Assigns a bool at an offset in a constant-buffer.
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/// </summary>
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/// <param name="offset">The offset at which to write the data</param>
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/// <param name="value">The value to write into the buffer</param>
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KINC_FUNC void kinc_g5_constant_buffer_set_bool(kinc_g5_constant_buffer_t *buffer, int offset, bool value);
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/// <summary>
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/// Assigns an integer at an offset in a constant-buffer.
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/// </summary>
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/// <param name="offset">The offset at which to write the data</param>
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/// <param name="value">The value to assign to the constant/uniform</param>
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KINC_FUNC void kinc_g5_constant_buffer_set_int(kinc_g5_constant_buffer_t *buffer, int offset, int value);
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/// <summary>
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/// Assigns a float at an offset in a constant-buffer.
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/// </summary>
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/// <param name="offset">The offset at which to write the data</param>
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/// <param name="value">The value to write into the buffer</param>
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KINC_FUNC void kinc_g5_constant_buffer_set_float(kinc_g5_constant_buffer_t *buffer, int offset, float value);
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/// <summary>
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/// Assigns two floats at an offset in a constant-buffer.
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/// </summary>
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/// <param name="offset">The offset at which to write the data</param>
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/// <param name="value1">The first value to write into the buffer</param>
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/// <param name="value2">The second value to write into the buffer</param>
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KINC_FUNC void kinc_g5_constant_buffer_set_float2(kinc_g5_constant_buffer_t *buffer, int offset, float value1, float value2);
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/// <summary>
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/// Assigns three floats at an offset in a constant-buffer.
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/// </summary>
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/// <param name="offset">The offset at which to write the data</param>
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/// <param name="value1">The first value to write into the buffer</param>
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/// <param name="value2">The second value to write into the buffer</param>
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/// <param name="value3">The third value to write into the buffer/param>
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KINC_FUNC void kinc_g5_constant_buffer_set_float3(kinc_g5_constant_buffer_t *buffer, int offset, float value1, float value2, float value3);
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/// <summary>
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/// Assigns four floats at an offset in a constant-buffer.
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/// </summary>
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/// <param name="offset">The offset at which to write the data</param>
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/// <param name="value1">The first value to write into the buffer</param>
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/// <param name="value2">The second value to write into the buffer</param>
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/// <param name="value3">The third value to write into the buffer/param>
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/// <param name="value4">The fourth value to write into the buffer</param>
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KINC_FUNC void kinc_g5_constant_buffer_set_float4(kinc_g5_constant_buffer_t *buffer, int offset, float value1, float value2, float value3, float value4);
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/// <summary>
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/// Assigns a bunch of floats at an offset in a constant-buffer.
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/// </summary>
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/// <param name="location">The location of the constant/uniform to assign the values to</param>
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/// <param name="value">The values to write into the buffer</param>
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/// <param name="value">The number of values to write into the buffer</param>
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KINC_FUNC void kinc_g5_constant_buffer_set_floats(kinc_g5_constant_buffer_t *buffer, int offset, float *values, int count);
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/// <summary>
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/// Assigns a 3x3-matrix at an offset in a constant-buffer.
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/// </summary>
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/// <param name="offset">The offset at which to write the data</param>
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/// <param name="value">The value to write into the buffer</param>
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KINC_FUNC void kinc_g5_constant_buffer_set_matrix3(kinc_g5_constant_buffer_t *buffer, int offset, kinc_matrix3x3_t *value);
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/// <summary>
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/// Assigns a 4x4-matrix at an offset in a constant-buffer.
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/// </summary>
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/// <param name="offset">The offset at which to write the data</param>
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/// <param name="value">The value to write into the buffer</param>
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KINC_FUNC void kinc_g5_constant_buffer_set_matrix4(kinc_g5_constant_buffer_t *buffer, int offset, kinc_matrix4x4_t *value);
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KINC_FUNC extern bool kinc_g5_transposeMat3;
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KINC_FUNC extern bool kinc_g5_transposeMat4;
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#ifdef __cplusplus
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}
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#endif
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