From c3eea71370eb94cff1fd96185458643fab6eb2c5 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Thu, 3 Nov 2022 19:47:46 +0000
Subject: Restructure how shaders are worked with

Needs a tidy-up
---
 gfx/gl/uiShader.cpp | 31 +++++++++++--------------------
 1 file changed, 11 insertions(+), 20 deletions(-)

(limited to 'gfx/gl/uiShader.cpp')

diff --git a/gfx/gl/uiShader.cpp b/gfx/gl/uiShader.cpp
index fbcdd15..78e0064 100644
--- a/gfx/gl/uiShader.cpp
+++ b/gfx/gl/uiShader.cpp
@@ -1,6 +1,6 @@
 #include "uiShader.h"
-#include <gfx/gl/glSource.h>
-#include <gfx/gl/programHandle.h>
+#include <gfx/gl/program.h>
+#include <gfx/gl/shader.h>
 #include <gfx/gl/shaders/fs-uiShader.h>
 #include <gfx/gl/shaders/fs-uiShaderFont.h>
 #include <gfx/gl/shaders/vs-uiShader.h>
@@ -8,30 +8,21 @@
 #include <glm/gtc/type_ptr.hpp>
 #include <initializer_list>
 
-UIShader::UIShader(size_t width, size_t height) :
-	progDefault {uiShader_vs.compile(), uiShader_fs.compile()}, progText {uiShader_vs.compile(),
-																		uiShaderFont_fs.compile()}
+UIShader::IconProgram::IconProgram(const glm::mat4 & vp) : UIProgram {vp, uiShader_vs, uiShader_fs} { }
+UIShader::TextProgram::TextProgram(const glm::mat4 & vp) :
+	UIProgram {vp, uiShader_vs, uiShaderFont_fs}, colorLoc {*this, "colour"}
 {
-	for (const auto prog : {&progDefault, &progText}) {
-		if (auto loc = glGetUniformLocation(prog->m_program, "uiProjection"); loc >= 0) {
-			glUseProgram(prog->m_program);
-			const auto uiProjection = glm::ortho<float>(0, static_cast<float>(width), 0, static_cast<float>(height));
-			glUniformMatrix4fv(loc, 1, GL_FALSE, glm::value_ptr(uiProjection));
-		}
-	}
 }
 
-void
-UIShader::useDefault() const
+UIShader::UIShader(size_t width, size_t height) :
+	UIShader {glm::ortho<float>(0, static_cast<float>(width), 0, static_cast<float>(height))}
 {
-	glUseProgram(progDefault.m_program);
 }
+UIShader::UIShader(const glm::mat4 & viewProjection) : icon {viewProjection}, text {viewProjection} { }
 
 void
-UIShader::useText(glm::vec3 colour) const
+UIShader::TextProgram::use(const glm::vec3 & colour) const
 {
-	glUseProgram(progText.m_program);
-	if (auto loc = glGetUniformLocation(progText.m_program, "colour"); loc >= 0) {
-		glUniform3fv(loc, 1, glm::value_ptr(colour));
-	}
+	Program::use();
+	glUniform3fv(colorLoc, 1, glm::value_ptr(colour));
 }
-- 
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