1 files changed, 140 insertions, 0 deletions
diff --git a/slideshow/source/engine/OGLTrans/OGLTrans_Shaders.cxx b/slideshow/source/engine/OGLTrans/OGLTrans_Shaders.cxx
new file mode 100644
index 000000000000..8c47f2f730b3
--- /dev/null
+++ b/slideshow/source/engine/OGLTrans/OGLTrans_Shaders.cxx
@@ -0,0 +1,140 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#include <osl/diagnose.hxx>
+
+#include "OGLTrans_Shaders.hxx"
+
+namespace unx
+{
+#include <GL/glx.h>
+#include <GL/glxext.h>
+}
+
+bool OGLShaders::cbInitialized = false;
+
+#ifdef GL_VERSION_2_0
+
+PFNGLCREATESHADERPROC OGLShaders::glCreateShader = NULL;
+PFNGLSHADERSOURCEPROC OGLShaders::glShaderSource = NULL;
+PFNGLCOMPILESHADERPROC OGLShaders::glCompileShader = NULL;
+PFNGLGETSHADERIVPROC OGLShaders::glGetShaderiv = NULL;
+PFNGLGETSHADERINFOLOGPROC OGLShaders::glGetShaderInfoLog = NULL;
+PFNGLDELETESHADERPROC OGLShaders::glDeleteShader = NULL;
+PFNGLCREATEPROGRAMPROC OGLShaders::glCreateProgram = NULL;
+PFNGLATTACHSHADERPROC OGLShaders::glAttachShader = NULL;
+PFNGLLINKPROGRAMPROC OGLShaders::glLinkProgram = NULL;
+PFNGLGETPROGRAMIVPROC OGLShaders::glGetProgramiv = NULL;
+PFNGLGETPROGRAMINFOLOGPROC OGLShaders::glGetProgramInfoLog = NULL;
+PFNGLUSEPROGRAMPROC OGLShaders::glUseProgram = NULL;
+PFNGLDELETEPROGRAMPROC OGLShaders::glDeleteProgram = NULL;
+PFNGLGETUNIFORMLOCATIONPROC OGLShaders::glGetUniformLocation = NULL;
+PFNGLUNIFORM1IPROC OGLShaders::glUniform1i = NULL;
+PFNGLUNIFORM1FPROC OGLShaders::glUniform1f = NULL;
+#endif
+
+bool OGLShaders::Initialize()
+{
+#ifdef GL_VERSION_2_0
+    if( !cbInitialized ) {
+        glCreateShader = (PFNGLCREATESHADERPROC) unx::glXGetProcAddress( (unsigned char *) "glCreateShader" );
+        glShaderSource = (PFNGLSHADERSOURCEPROC) unx::glXGetProcAddress( (unsigned char *) "glShaderSource" );
+        glCompileShader = (PFNGLCOMPILESHADERPROC) unx::glXGetProcAddress( (unsigned char *) "glCompileShader" );
+        glGetShaderiv = (PFNGLGETSHADERIVPROC) unx::glXGetProcAddress( (unsigned char *) "glGetShaderiv" );
+        glGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC) unx::glXGetProcAddress( (unsigned char *) "glGetShaderInfoLog" );
+        glDeleteShader = (PFNGLDELETESHADERPROC) unx::glXGetProcAddress( (unsigned char *) "glDeleteShader" );
+        glCreateProgram = (PFNGLCREATEPROGRAMPROC) unx::glXGetProcAddress( (unsigned char *) "glCreateProgram" );
+        glAttachShader = (PFNGLATTACHSHADERPROC) unx::glXGetProcAddress( (unsigned char *) "glAttachShader" );
+        glLinkProgram = (PFNGLLINKPROGRAMPROC) unx::glXGetProcAddress( (unsigned char *) "glLinkProgram" );
+        glGetProgramiv = (PFNGLGETPROGRAMIVPROC) unx::glXGetProcAddress( (unsigned char *) "glGetProgramiv" );
+        glGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC) unx::glXGetProcAddress( (unsigned char *) "glGetProgramInfoLog" );
+        glUseProgram = (PFNGLUSEPROGRAMPROC) unx::glXGetProcAddress( (unsigned char *) "glUseProgram" );
+        glDeleteProgram = (PFNGLDELETEPROGRAMPROC) unx::glXGetProcAddress( (unsigned char *) "glDeleteProgram" );
+        glGetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC) unx::glXGetProcAddress( (unsigned char *) "glGetUniformLocation" );
+        glUniform1i = (PFNGLUNIFORM1IPROC) unx::glXGetProcAddress( (unsigned char *) "glUniform1i" );
+        glUniform1f = (PFNGLUNIFORM1FPROC) unx::glXGetProcAddress( (unsigned char *) "glUniform1f" );
+        cbInitialized = true;
+    }
+
+    return glCreateShader != NULL;
+#else
+    return false;
+#endif
+}
+
+GLuint OGLShaders::LinkProgram( const char *vertexShader, const char *fragmentShader )
+{
+#ifdef GL_VERSION_2_0
+    if( !Initialize() )
+        return 0;
+
+    GLhandleARB vertexObject, fragmentObject, programObject;
+    GLint vertexCompiled, fragmentCompiled, programLinked;
+    char log[1024];
+
+    vertexObject = glCreateShader( GL_VERTEX_SHADER );
+    fragmentObject = glCreateShader( GL_FRAGMENT_SHADER );
+    OSL_TRACE("checkpoint 1: shaders created (%d) vertex: %d fragment: %d", glGetError() == GL_NO_ERROR, vertexObject, fragmentObject );
+
+
+    glShaderSource( vertexObject, 1, &vertexShader, NULL );
+    glShaderSource( fragmentObject, 1, &fragmentShader, NULL );
+
+    glCompileShader( vertexObject );
+    glGetShaderInfoLog( vertexObject, sizeof( log ), NULL, log );
+    OSL_TRACE("vertex compile log: %s", log);
+    glGetShaderiv( vertexObject, GL_COMPILE_STATUS, &vertexCompiled );
+    glCompileShader( fragmentObject );
+    glGetShaderInfoLog( fragmentObject, sizeof( log ), NULL, log );
+    OSL_TRACE("fragment compile log: %s", log);
+    glGetShaderiv( fragmentObject, GL_COMPILE_STATUS, &fragmentCompiled );
+
+    if( !vertexCompiled || !fragmentCompiled )
+        return 0;
+
+    OSL_TRACE("checkpoint 2: shaders compiled (%d)", glGetError() == GL_NO_ERROR);
+
+    programObject = glCreateProgram();
+    glAttachShader( programObject, vertexObject );
+    glAttachShader( programObject, fragmentObject );
+
+    glLinkProgram( programObject );
+    glGetProgramInfoLog( programObject, sizeof( log ), NULL, log );
+    OSL_TRACE("program link log: %s", log);
+    glGetProgramiv( programObject, GL_LINK_STATUS, &programLinked );
+
+    if( !programLinked )
+        return 0;
+
+    OSL_TRACE("checkpoint 3: program linked (%d)", glGetError() == GL_NO_ERROR);
+
+    return programObject;
+#else
+    return 0;
+#endif
+}
+