luboslenco
123 lines
3.0 KiB
C
123 lines
3.0 KiB
C
#pragma once
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#include <kinc/global.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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/*! \file image.h
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\brief Functionality for creating and loading images. Image loading supports PNG, JPEG and the custom K format. K files can contain image data that uses
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texture-compression (see kinc_image_compression).
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*/
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typedef enum kinc_image_compression {
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KINC_IMAGE_COMPRESSION_NONE,
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KINC_IMAGE_COMPRESSION_DXT5,
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KINC_IMAGE_COMPRESSION_ASTC,
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KINC_IMAGE_COMPRESSION_PVRTC
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} kinc_image_compression_t;
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typedef enum kinc_image_format {
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KINC_IMAGE_FORMAT_RGBA32,
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KINC_IMAGE_FORMAT_GREY8,
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KINC_IMAGE_FORMAT_RGB24,
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KINC_IMAGE_FORMAT_RGBA128,
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KINC_IMAGE_FORMAT_RGBA64,
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KINC_IMAGE_FORMAT_A32,
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KINC_IMAGE_FORMAT_BGRA32,
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KINC_IMAGE_FORMAT_A16
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} kinc_image_format_t;
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typedef struct kinc_image {
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int width, height;
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kinc_image_format_t format;
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unsigned internal_format;
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kinc_image_compression_t compression;
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void *data;
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size_t data_size;
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} kinc_image_t;
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size_t kinc_image_init(kinc_image_t *image, void *memory, int width, int height, kinc_image_format_t format);
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void kinc_image_init_from_bytes(kinc_image_t *image, void *data, int width, int height, kinc_image_format_t format);
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void kinc_image_destroy(kinc_image_t *image);
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uint8_t *kinc_image_get_pixels(kinc_image_t *image);
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int kinc_image_format_sizeof(kinc_image_format_t format);
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#ifdef KINC_IMPLEMENTATION_ROOT
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#define KINC_IMPLEMENTATION
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#endif
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#ifdef KINC_IMPLEMENTATION
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#include "image.h"
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#include <lz4x.h>
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#ifdef KINC_IMPLEMENTATION_ROOT
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#undef KINC_IMPLEMENTATION
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#endif
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#include <kinc/log.h>
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#ifdef KINC_IMPLEMENTATION_ROOT
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#define KINC_IMPLEMENTATION
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#endif
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#undef KINC_IMPLEMENTATION
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#include <kinc/graphics4/graphics.h>
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#include <kinc/io/filereader.h>
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#include <kinc/math/core.h>
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#define KINC_IMPLEMENTATION
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#include <string.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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int kinc_image_format_sizeof(kinc_image_format_t format) {
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switch (format) {
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case KINC_IMAGE_FORMAT_RGBA128:
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return 16;
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case KINC_IMAGE_FORMAT_RGBA32:
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case KINC_IMAGE_FORMAT_BGRA32:
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return 4;
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case KINC_IMAGE_FORMAT_RGBA64:
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return 8;
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case KINC_IMAGE_FORMAT_A32:
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return 4;
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case KINC_IMAGE_FORMAT_A16:
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return 2;
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case KINC_IMAGE_FORMAT_GREY8:
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return 1;
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case KINC_IMAGE_FORMAT_RGB24:
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return 3;
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}
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return -1;
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}
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size_t kinc_image_init(kinc_image_t *image, void *memory, int width, int height, kinc_image_format_t format) {
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image->width = width;
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image->height = height;
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image->format = format;
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image->compression = KINC_IMAGE_COMPRESSION_NONE;
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image->data = memory;
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return width * height * kinc_image_format_sizeof(format);
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}
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void kinc_image_init_from_bytes(kinc_image_t *image, void *data, int width, int height, kinc_image_format_t format) {
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image->width = width;
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image->height = height;
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image->format = format;
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image->compression = KINC_IMAGE_COMPRESSION_NONE;
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image->data = data;
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}
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void kinc_image_destroy(kinc_image_t *image) {
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// user has to free the data
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image->data = NULL;
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}
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uint8_t *kinc_image_get_pixels(kinc_image_t *image) {
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return (uint8_t *)image->data;
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}
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#endif
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