86 lines
3.5 KiB
C++
86 lines
3.5 KiB
C++
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/************************************************************************
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* Copyright (c) 2005-2006 tok@openlinux.org.uk *
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* *
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* This software is provided as-is, without any express or implied *
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* warranty. In no event will the authors be held liable for any *
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* damages arising from the use of this software. *
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* *
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* Permission is granted to anyone to use this software for any purpose, *
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* including commercial applications, and to alter it and redistribute *
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* it freely, subject to the following restrictions: *
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* *
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* 1. The origin of this software must not be misrepresented; you must *
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* not claim that you wrote the original software. If you use this *
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* software in a product, an acknowledgment in the product documentation *
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* would be appreciated but is not required. *
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* *
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* 2. Altered source versions must be plainly marked as such, and must *
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* not be misrepresented as being the original software. *
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* *
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* 3. This notice may not be removed or altered from any source *
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* distribution. *
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************************************************************************/
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#include "gl_base.h"
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#include <SDL_opengl.h>
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#include "common_sdl_gl.h"
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#include "log.h"
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using namespace Util;
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namespace OpenGL {
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template<class T> void ImmediateRenderer<T>::assertCorrectPrimitive(GLenum newType) {
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if (!insideBegin) {
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WARN << "Missing glBegin() call" << std::endl;
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}
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else {
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if (currentPrimitiveType == newType)
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return;
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WARN << "Forcing switch of primitive type" << std::endl;
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glEnd();
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}
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glBegin(newType);
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currentPrimitiveType = newType;
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insideBegin = true;
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}
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template<class T> void ImmediateRenderer<T>::begin(GLenum type) {
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// FIXME: check !insideBegin
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currentPrimitiveType = type;
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insideBegin = true;
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}
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template<class T> void ImmediateRenderer<T>::end() {
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insideBegin = false;
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}
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template<class T> GLenum ImmediateRenderer<T>::currentPrimitiveType = GL_POINTS;
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template<> void ImmediateRenderer<Quad2Int>::draw(const Quad2Int & quad) {
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//assertCorrectPrimitive(quad.primitiveType);
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for (int i = 0; i < 4; i++)
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glVertex2i(quad.vertices[i][0], quad.vertices[i][1]);
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}
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template<> void ImmediateRenderer<ColoredQuad2Int>::draw(const ColoredQuad2Int & quad) {
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//assertCorrectPrimitive(quad.primitiveType);
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for (int i = 0; i < 4; i++) {
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glColor3f(quad.colors[i][0], quad.colors[i][1], quad.colors[i][2]);
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glVertex2i(quad.vertices[i][0], quad.vertices[i][1]);
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}
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}
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template<> void ImmediateRenderer<FontQuad>::draw(const FontQuad & quad) {
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glBindTexture(GL_TEXTURE_2D, quad.texId);
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glBegin(quad.primitiveType);
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for (int i = 0; i < 4; i++) {
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glTexCoord2f(quad.texCoords[i][0], quad.texCoords[i][1]);
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glVertex2i(quad.vertices[i][0], quad.vertices[i][1]);
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}
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glEnd();
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}
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/*
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template<> void ImmediateRenderer<OpenGTA::Map::BlockInfo>::draw(const OpenGTA::Map::BlockInfo & info) {
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for (int i = 0; i < 4; ++i) {
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}
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}
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*/
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}
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