From d7b65dd309ce9b91be9ef4f22d55f7f4009007a2 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Tue, 10 Jun 2014 20:51:32 +0300
Subject: In modernopengl add basic VAO usage.
---
src/render/modernopenglgraphics.cpp | 38 +++++++++++++++++++------------------
src/render/modernopenglgraphics.h | 1 +
2 files changed, 21 insertions(+), 18 deletions(-)
diff --git a/src/render/modernopenglgraphics.cpp b/src/render/modernopenglgraphics.cpp
index caa14cb33..c3e4fbba3 100644
--- a/src/render/modernopenglgraphics.cpp
+++ b/src/render/modernopenglgraphics.cpp
@@ -71,6 +71,7 @@ ModernOpenGLGraphics::ModernOpenGLGraphics() :
mTexAttrib(0),
mSimpleScreenUniform(0U),
mTextureScreenUniform(0U),
+ mVao(0U),
mColorAlpha(false),
mTextureDraw(false),
#ifdef DEBUG_BIND_TEXTURE
@@ -88,6 +89,8 @@ ModernOpenGLGraphics::~ModernOpenGLGraphics()
deleteArraysInternal();
if (mSimpleProgram)
mSimpleProgram->decRef();
+ if (mVao)
+ mglDeleteVertexArrays(1, &mVao);
}
void ModernOpenGLGraphics::initArrays(const int vertCount)
@@ -109,30 +112,29 @@ void ModernOpenGLGraphics::initArrays(const int vertCount)
void ModernOpenGLGraphics::postInit()
{
+ mglGenVertexArrays(1, &mVao);
+ mglBindVertexArray(mVao);
+
logger->log("Compiling shaders");
mSimpleProgram = shaders.getSimpleProgram();
mSimpleProgramId = mSimpleProgram->getProgramId();
mTextureProgram = shaders.getTextureProgram();
mTextureProgramId = mTextureProgram->getProgramId();
- if (mSimpleProgram && mTextureProgram)
- {
- logger->log("Shaders compilation done.");
- mglUseProgram(mSimpleProgramId);
- mSimplePosAttrib = mglGetAttribLocation(mSimpleProgramId, "position");
- mglEnableVertexAttribArray(mSimplePosAttrib);
- mSimpleColorUniform = mglGetUniformLocation(mSimpleProgramId, "color");
- mSimpleScreenUniform = mglGetUniformLocation(mSimpleProgramId, "screen");
-
- mTexturePosAttrib = mglGetAttribLocation(mTextureProgramId, "position");
- mTexAttrib = mglGetAttribLocation(mTextureProgramId, "texcoord");
- mTextureScreenUniform = mglGetUniformLocation(mTextureProgramId, "screen");
-
- screenResized();
- }
- else
- {
+ if (!mSimpleProgram || !mTextureProgram)
logger->error("Shaders compilation error.");
- }
+
+ logger->log("Shaders compilation done.");
+ mglUseProgram(mSimpleProgramId);
+ mSimplePosAttrib = mglGetAttribLocation(mSimpleProgramId, "position");
+ mglEnableVertexAttribArray(mSimplePosAttrib);
+ mSimpleColorUniform = mglGetUniformLocation(mSimpleProgramId, "color");
+ mSimpleScreenUniform = mglGetUniformLocation(mSimpleProgramId, "screen");
+
+ mTexturePosAttrib = mglGetAttribLocation(mTextureProgramId, "position");
+ mTexAttrib = mglGetAttribLocation(mTextureProgramId, "texcoord");
+ mTextureScreenUniform = mglGetUniformLocation(mTextureProgramId, "screen");
+
+ screenResized();
}
void ModernOpenGLGraphics::screenResized()
diff --git a/src/render/modernopenglgraphics.h b/src/render/modernopenglgraphics.h
index 3b3be8d85..b3a217ca2 100644
--- a/src/render/modernopenglgraphics.h
+++ b/src/render/modernopenglgraphics.h
@@ -99,6 +99,7 @@ class ModernOpenGLGraphics final : public Graphics
GLint mTexAttrib;
GLuint mSimpleScreenUniform;
GLuint mTextureScreenUniform;
+ GLuint mVao;
bool mColorAlpha;
bool mTextureDraw;
#ifdef DEBUG_BIND_TEXTURE
--
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