From f5c4671bfbad96bf346bd7e9a21fc4317b4959df Mon Sep 17 00:00:00 2001 From: Indrajith K L Date: Sat, 3 Dec 2022 17:00:20 +0530 Subject: Adds most of the tools --- v_windows/v/vlib/stbi/stbi.c.v | 87 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 v_windows/v/vlib/stbi/stbi.c.v (limited to 'v_windows/v/vlib/stbi') diff --git a/v_windows/v/vlib/stbi/stbi.c.v b/v_windows/v/vlib/stbi/stbi.c.v new file mode 100644 index 0000000..da72dca --- /dev/null +++ b/v_windows/v/vlib/stbi/stbi.c.v @@ -0,0 +1,87 @@ +// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved. +// Use of this source code is governed by an MIT license +// that can be found in the LICENSE file. + +module stbi + +#flag -I @VEXEROOT/thirdparty/stb_image +#include "stb_image.h" +#flag @VEXEROOT/thirdparty/stb_image/stbi.o + +pub struct Image { +pub mut: + width int + height int + nr_channels int + ok bool + data voidptr + ext string +} + +fn C.stbi_load(filename &char, x &int, y &int, channels_in_file &int, desired_channels int) &byte + +fn C.stbi_load_from_file(f voidptr, x &int, y &int, channels_in_file &int, desired_channels int) &byte + +fn C.stbi_load_from_memory(buffer &byte, len int, x &int, y &int, channels_in_file &int, desired_channels int) &byte + +fn C.stbi_image_free(retval_from_stbi_load &byte) + +fn C.stbi_set_flip_vertically_on_load(should_flip int) + +fn init() { + set_flip_vertically_on_load(false) +} + +pub fn load(path string) ?Image { + ext := path.all_after_last('.') + mut res := Image{ + ok: true + ext: ext + data: 0 + } + // flag := if ext == 'png' { C.STBI_rgb_alpha } else { 0 } + desired_channels := if ext == 'png' { 4 } else { 0 } + res.data = C.stbi_load(&char(path.str), &res.width, &res.height, &res.nr_channels, + desired_channels) + if desired_channels == 4 && res.nr_channels == 3 { + // Fix an alpha png bug + res.nr_channels = 4 + } + if isnil(res.data) { + return error('stbi image failed to load from "$path"') + } + return res +} + +pub fn load_from_memory(buf &byte, bufsize int) ?Image { + mut res := Image{ + ok: true + data: 0 + } + flag := C.STBI_rgb_alpha + res.data = C.stbi_load_from_memory(buf, bufsize, &res.width, &res.height, &res.nr_channels, + flag) + if isnil(res.data) { + return error('stbi image failed to load from memory') + } + return res +} + +pub fn (img &Image) free() { + C.stbi_image_free(img.data) +} + +/* +pub fn (img Image) tex_image_2d() { + mut rgb_flag := C.GL_RGB + if img.ext == 'png' { + rgb_flag = C.GL_RGBA + } + C.glTexImage2D(C.GL_TEXTURE_2D, 0, rgb_flag, img.width, img.height, 0, + rgb_flag, C.GL_UNSIGNED_BYTE, img.data) +} +*/ + +pub fn set_flip_vertically_on_load(val bool) { + C.stbi_set_flip_vertically_on_load(val) +} -- cgit v1.2.3