/*
  Copyright (c) 2015 Alex Diener
  
  This software is provided 'as-is', without any express or implied
  warranty. In no event will the authors be held liable for any damages
  arising from the use of this software.
  
  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:
  
  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.
  
  Alex Diener alex@ludobloom.com
*/

#include "testharness/TestHarness_globals.h"

unsigned int g_viewWidth = 1280;
unsigned int g_viewHeight = 720;
float g_viewRatio = 16.0f / 9.0f;
float g_scaleFactor = 1.0f;
bool g_spacebarDown = false;
bool g_fixedRandomSeed = false;
int g_randomSeed = 0;
Texture * g_blankTexture = NULL;
Texture * g_fontTexture = NULL;
BitmapFont * g_font = NULL;

struct drawStringContext {
	Color4f color;
	VertexIO * vertexIO;
};

static void writeVerticesGlyphCallback(BitmapFont * font, Rect4f vertexBounds, Rect4f textureBounds, void * context) {
	struct drawStringContext * contextStruct = context;
	Color4f color = contextStruct->color;
	struct vertex_p2f_t2f_c4f vertices[4], vertex = {{vertexBounds.xMin, vertexBounds.yMin}, {textureBounds.xMin, textureBounds.yMin}, {color.red, color.green, color.blue, color.alpha}};
	vertices[0] = vertex;
	vertex.position[0] = vertexBounds.xMax;
	vertex.texCoords[0] = textureBounds.xMax;
	vertices[1] = vertex;
	vertex.position[1] = vertexBounds.yMax;
	vertex.texCoords[1] = textureBounds.yMax;
	vertices[2] = vertex;
	vertex.position[0] = vertexBounds.xMin;
	vertex.texCoords[0] = textureBounds.xMin;
	vertices[3] = vertex;
	uint32_t indexes[6] = {0, 1, 2, 2, 3, 0};
	VertexIO_writeIndexedVertices(contextStruct->vertexIO, 4, vertices, 6, indexes);
}

void writeStringVertices(BitmapFont * font, const char * string, size_t length, float emSize, Vector2f offset, Vector2f relativeOrigin, BitmapFont_drawOptions drawOptions, Color4f color, VertexIO * vertexIO) {
	struct drawStringContext contextStruct = {color, vertexIO};
	BitmapFont_writeStringWithCallback(font, string, length, emSize, offset, relativeOrigin, drawOptions, writeVerticesGlyphCallback, &contextStruct);
}