Remove the GLES 2 dependency for eglfs and kms

Change-Id: If7b80487e01db726367f5a67d2860073f60a0844
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>

src/plugins/platforms/eglfs/qeglfsbackingstore.cpp

@@ -139,6 +139,7 @@ void QEglFSBackingStore::resize(const QSize &size, const QRegion &staticContents
     m_window->create();
 
     rootWin->screen()->rootContext()->makeCurrent(rootWin->window());
+    initializeOpenGLFunctions();
 
     if (m_texture)
         glDeleteTextures(1, &m_texture);

src/plugins/platforms/eglfs/qeglfsbackingstore.h

@@ -43,6 +43,7 @@
 #define QEGLFSBACKINGSTORE_H
 
 #include <qpa/qplatformbackingstore.h>
+#include <QtGui/QOpenGLFunctions>
 
 #include <QImage>
 #include <QRegion>
@@ -52,7 +53,7 @@ QT_BEGIN_NAMESPACE
 class QOpenGLPaintDevice;
 class QEglFSWindow;
 
-class QEglFSBackingStore : public QPlatformBackingStore
+class QEglFSBackingStore : public QPlatformBackingStore, public QOpenGLFunctions
 {
 public:
     QEglFSBackingStore(QWindow *window);

src/plugins/platforms/eglfs/qeglfscompositor.cpp

@@ -53,7 +53,8 @@ static QEglFSCompositor *compositor = 0;
 
 QEglFSCompositor::QEglFSCompositor()
     : m_screen(0),
-      m_program(0)
+      m_program(0),
+      m_initialized(false)
 {
     Q_ASSERT(!compositor);
     m_updateTimer.setSingleShot(true);
@@ -86,6 +87,10 @@ void QEglFSCompositor::renderAll()
     Q_ASSERT(context);
 
     context->makeCurrent(rootWin->window());
+    if (!m_initialized) {
+        initializeOpenGLFunctions();
+        m_initialized = true;
+    }
     ensureProgram();
     m_program->bind();
 

src/plugins/platforms/eglfs/qeglfscompositor.h

@@ -42,7 +42,8 @@
 #ifndef QEGLFSCOMPOSITOR_H
 #define QEGLFSCOMPOSITOR_H
 
-#include <QTimer>
+#include <QtCore/QTimer>
+#include <QtGui/QOpenGLFunctions>
 
 QT_BEGIN_NAMESPACE
 
@@ -50,7 +51,7 @@ class QEglFSScreen;
 class QEglFSWindow;
 class QOpenGLShaderProgram;
 
-class QEglFSCompositor : public QObject
+class QEglFSCompositor : public QObject, public QOpenGLFunctions
 {
     Q_OBJECT
 
@@ -76,6 +77,7 @@ private:
     int m_vertexCoordEntry;
     int m_textureCoordEntry;
     int m_isRasterEntry;
+    bool m_initialized;
 };
 
 QT_END_NAMESPACE

src/plugins/platforms/eglfs/qeglfscursor.cpp

@@ -79,7 +79,7 @@ void QEglFSCursor::resetResources()
     m_cursorAtlas.texture = 0;
 }
 
-static GLuint createShader(GLenum shaderType, const char *program)
+GLuint QEglFSCursor::createShader(GLenum shaderType, const char *program)
 {
     GLuint shader = glCreateShader(shaderType);
     glShaderSource(shader, 1 /* count */, &program, NULL /* lengths */);
@@ -98,7 +98,7 @@ static GLuint createShader(GLenum shaderType, const char *program)
     return 0;
 }
 
-static GLuint createProgram(GLuint vshader, GLuint fshader)
+GLuint QEglFSCursor::createProgram(GLuint vshader, GLuint fshader)
 {
     GLuint program = glCreateProgram();
     glAttachShader(program, vshader);
@@ -286,6 +286,7 @@ void QEglFSCursor::draw(const QRectF &r)
 {
     if (!m_program) {
         // one time initialization
+        initializeOpenGLFunctions();
         createShaderPrograms();
 
         if (!m_cursorAtlas.texture) {

src/plugins/platforms/eglfs/qeglfscursor.h

@@ -43,15 +43,15 @@
 #define QEGLFSCURSOR_H
 
 #include <qpa/qplatformcursor.h>
+#include <QtGui/QOpenGLFunctions>
 #include "qeglfsscreen.h"
-#include <GLES2/gl2.h>
 
 QT_BEGIN_NAMESPACE
 
 class QOpenGLShaderProgram;
 class QEglFSScreen;
 
-class QEglFSCursor : public QPlatformCursor
+class QEglFSCursor : public QPlatformCursor, public QOpenGLFunctions
 {
 public:
     QEglFSCursor(QEglFSScreen *screen);
@@ -78,6 +78,9 @@ protected:
     void draw(const QRectF &rect);
     void update(const QRegion &region);
 
+    GLuint createShader(GLenum shaderType, const char *program);
+    GLuint createProgram(GLuint vshader, GLuint fshader);
+
     QEglFSScreen *m_screen;
 
     // current cursor information

src/plugins/platforms/kms/qkmsbackingstore.cpp

@@ -52,6 +52,7 @@ QKmsBackingStore::QKmsBackingStore(QWindow *window)
     , m_context(new QOpenGLContext)
     , m_texture(0)
     , m_program(0)
+    , m_initialized(false)
 {
     m_context->setFormat(window->requestedFormat());
     m_context->setScreen(window->screen());
@@ -85,6 +86,11 @@ void QKmsBackingStore::flush(QWindow *window, const QRegion &region, const QPoin
 
     m_context->makeCurrent(window);
 
+    if (!m_initialized) {
+        initializeOpenGLFunctions();
+        m_initialized = true;
+    }
+
     if (!m_program) {
         static const char *textureVertexProgram =
             "attribute highp vec2 vertexCoordEntry;\n"

src/plugins/platforms/kms/qkmsbackingstore.h

@@ -43,6 +43,7 @@
 #define QBACKINGSTORE_KMS_H
 
 #include <qpa/qplatformbackingstore.h>
+#include <QtGui/QOpenGLFunctions>
 #include <QImage>
 
 QT_BEGIN_NAMESPACE
@@ -50,7 +51,7 @@ QT_BEGIN_NAMESPACE
 class QOpenGLContext;
 class QOpenGLShaderProgram;
 
-class QKmsBackingStore : public QPlatformBackingStore
+class QKmsBackingStore : public QPlatformBackingStore, public QOpenGLFunctions
 {
 public:
     QKmsBackingStore(QWindow *window);
@@ -69,6 +70,7 @@ private:
     uint m_texture;
     QOpenGLShaderProgram *m_program;
     QRegion m_dirty;
+    bool m_initialized;
 };
 
 QT_END_NAMESPACE

src/plugins/platforms/kms/qkmsscreen.h

@@ -55,8 +55,7 @@ extern "C" {
 
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
-#include <GLES2/gl2.h>
-#include <GLES2/gl2ext.h>
+#include <QtGui/qopengl.h>
 
 #include <qpa/qplatformscreen.h>