From 07dc690837f6a665490e370e8a07410e970384d7 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Thu, 16 Mar 2023 23:23:04 +0000
Subject: Simplify calculation of texture position fraction
---
assetFactory/assetFactory.cpp | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
(limited to 'assetFactory')
diff --git a/assetFactory/assetFactory.cpp b/assetFactory/assetFactory.cpp
index 77dd554..ed1af58 100644
--- a/assetFactory/assetFactory.cpp
+++ b/assetFactory/assetFactory.cpp
@@ -123,12 +123,7 @@ AssetFactory::createTexutre() const
std::inserter(textureFragmentPositions, textureFragmentPositions.end()),
[position = layout.begin(), image = images.begin(), size = imageSizes.begin(),
outSize = glm::vec2 {outSize}](const auto & tf) mutable {
- glm::vec4 positionFraction {
- static_cast<float>(position->x) / outSize.x,
- static_cast<float>(position->y) / outSize.y,
- static_cast<float>(position->x + size->x) / outSize.x,
- static_cast<float>(position->y + size->y) / outSize.y,
- };
+ const auto positionFraction = glm::vec4 {*position, *position + *size} / outSize.xyxy();
glTexSubImage2D(GL_TEXTURE_2D, 0, static_cast<GLint>(position->x), static_cast<GLint>(position->y),
static_cast<GLint>(size->x), static_cast<GLint>(size->y), GL_RGBA, GL_UNSIGNED_BYTE,
image->get()->data.data());
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