Get rid of OpenGL 1.x engine and platform code from QtOpenGL.

Change-Id: I646b8e26d5e7214432a044866764d57cc11b2390
Reviewed-on: http://codereview.qt.nokia.com/3006
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Jørgen Lind <jorgen.lind@nokia.com>

1 files changed, 0 insertions, 403 deletions

diff --git a/src/opengl/qglpixelbuffer_win.cpp b/src/opengl/qglpixelbuffer_win.cpp
deleted file mode 100644
index 80ce99219e..0000000000
--- a/src/opengl/qglpixelbuffer_win.cpp
+++ /dev/null
@@ -1,403 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtOpenGL module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <qglpixelbuffer.h>
-#include <qgl.h>
-#include <private/qgl_p.h>
-
-#include <private/qglpixelbuffer_p.h>
-
-#include <qimage.h>
-#include <qdebug.h>
-
-QT_BEGIN_NAMESPACE
-
-/* WGL_WGLEXT_PROTOTYPES */
-typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc);
-typedef HPBUFFERARB (WINAPI * PFNWGLCREATEPBUFFERARBPROC) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList);
-typedef HDC (WINAPI * PFNWGLGETPBUFFERDCARBPROC) (HPBUFFERARB hPbuffer);
-typedef int (WINAPI * PFNWGLRELEASEPBUFFERDCARBPROC) (HPBUFFERARB hPbuffer, HDC hDC);
-typedef BOOL (WINAPI * PFNWGLDESTROYPBUFFERARBPROC) (HPBUFFERARB hPbuffer);
-typedef BOOL (WINAPI * PFNWGLQUERYPBUFFERARBPROC) (HPBUFFERARB hPbuffer, int iAttribute, int *piValue);
-typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVARBPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, int *piValues);
-typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBFVARBPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, FLOAT *pfValues);
-typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATARBPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
-typedef BOOL (WINAPI * PFNWGLBINDTEXIMAGEARBPROC) (HPBUFFERARB hPbuffer, int iBuffer);
-typedef BOOL (WINAPI * PFNWGLRELEASETEXIMAGEARBPROC) (HPBUFFERARB hPbuffer, int iBuffer);
-typedef BOOL (WINAPI * PFNWGLSETPBUFFERATTRIBARBPROC) (HPBUFFERARB hPbuffer, const int * piAttribList);
-
-#ifndef WGL_ARB_pbuffer
-#define WGL_DRAW_TO_PBUFFER_ARB        0x202D
-#define WGL_MAX_PBUFFER_PIXELS_ARB     0x202E
-#define WGL_MAX_PBUFFER_WIDTH_ARB      0x202F
-#define WGL_MAX_PBUFFER_HEIGHT_ARB     0x2030
-#define WGL_PBUFFER_LARGEST_ARB        0x2033
-#define WGL_PBUFFER_WIDTH_ARB          0x2034
-#define WGL_PBUFFER_HEIGHT_ARB         0x2035
-#define WGL_PBUFFER_LOST_ARB           0x2036
-#endif
-
-#ifndef WGL_ARB_pixel_format
-#define WGL_NUMBER_PIXEL_FORMATS_ARB   0x2000
-#define WGL_DRAW_TO_WINDOW_ARB         0x2001
-#define WGL_DRAW_TO_BITMAP_ARB         0x2002
-#define WGL_ACCELERATION_ARB           0x2003
-#define WGL_NEED_PALETTE_ARB           0x2004
-#define WGL_NEED_SYSTEM_PALETTE_ARB    0x2005
-#define WGL_SWAP_LAYER_BUFFERS_ARB     0x2006
-#define WGL_SWAP_METHOD_ARB            0x2007
-#define WGL_NUMBER_OVERLAYS_ARB        0x2008
-#define WGL_NUMBER_UNDERLAYS_ARB       0x2009
-#define WGL_TRANSPARENT_ARB            0x200A
-#define WGL_TRANSPARENT_RED_VALUE_ARB  0x2037
-#define WGL_TRANSPARENT_GREEN_VALUE_ARB 0x2038
-#define WGL_TRANSPARENT_BLUE_VALUE_ARB 0x2039
-#define WGL_TRANSPARENT_ALPHA_VALUE_ARB 0x203A
-#define WGL_TRANSPARENT_INDEX_VALUE_ARB 0x203B
-#define WGL_SHARE_DEPTH_ARB            0x200C
-#define WGL_SHARE_STENCIL_ARB          0x200D
-#define WGL_SHARE_ACCUM_ARB            0x200E
-#define WGL_SUPPORT_GDI_ARB            0x200F
-#define WGL_SUPPORT_OPENGL_ARB         0x2010
-#define WGL_DOUBLE_BUFFER_ARB          0x2011
-#define WGL_STEREO_ARB                 0x2012
-#define WGL_PIXEL_TYPE_ARB             0x2013
-#define WGL_COLOR_BITS_ARB             0x2014
-#define WGL_RED_BITS_ARB               0x2015
-#define WGL_RED_SHIFT_ARB              0x2016
-#define WGL_GREEN_BITS_ARB             0x2017
-#define WGL_GREEN_SHIFT_ARB            0x2018
-#define WGL_BLUE_BITS_ARB              0x2019
-#define WGL_BLUE_SHIFT_ARB             0x201A
-#define WGL_ALPHA_BITS_ARB             0x201B
-#define WGL_ALPHA_SHIFT_ARB            0x201C
-#define WGL_ACCUM_BITS_ARB             0x201D
-#define WGL_ACCUM_RED_BITS_ARB         0x201E
-#define WGL_ACCUM_GREEN_BITS_ARB       0x201F
-#define WGL_ACCUM_BLUE_BITS_ARB        0x2020
-#define WGL_ACCUM_ALPHA_BITS_ARB       0x2021
-#define WGL_DEPTH_BITS_ARB             0x2022
-#define WGL_STENCIL_BITS_ARB           0x2023
-#define WGL_AUX_BUFFERS_ARB            0x2024
-#define WGL_NO_ACCELERATION_ARB        0x2025
-#define WGL_GENERIC_ACCELERATION_ARB   0x2026
-#define WGL_FULL_ACCELERATION_ARB      0x2027
-#define WGL_SWAP_EXCHANGE_ARB          0x2028
-#define WGL_SWAP_COPY_ARB              0x2029
-#define WGL_SWAP_UNDEFINED_ARB         0x202A
-#define WGL_TYPE_RGBA_ARB              0x202B
-#define WGL_TYPE_COLORINDEX_ARB        0x202C
-#endif
-
-#ifndef WGL_ARB_render_texture
-#define WGL_BIND_TO_TEXTURE_RGB_ARB        0x2070
-#define WGL_BIND_TO_TEXTURE_RGBA_ARB       0x2071
-#define WGL_TEXTURE_FORMAT_ARB             0x2072
-#define WGL_TEXTURE_TARGET_ARB             0x2073
-#define WGL_MIPMAP_TEXTURE_ARB             0x2074
-#define WGL_TEXTURE_RGB_ARB                0x2075
-#define WGL_TEXTURE_RGBA_ARB               0x2076
-#define WGL_NO_TEXTURE_ARB                 0x2077
-#define WGL_TEXTURE_CUBE_MAP_ARB           0x2078
-#define WGL_TEXTURE_1D_ARB                 0x2079
-#define WGL_TEXTURE_2D_ARB                 0x207A
-#define WGL_MIPMAP_LEVEL_ARB               0x207B
-#define WGL_CUBE_MAP_FACE_ARB              0x207C
-#define WGL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB 0x207D
-#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB 0x207E
-#define WGL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB 0x207F
-#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB 0x2080
-#define WGL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB 0x2081
-#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB 0x2082
-#define WGL_FRONT_LEFT_ARB                 0x2083
-#define WGL_FRONT_RIGHT_ARB                0x2084
-#define WGL_BACK_LEFT_ARB                  0x2085
-#define WGL_BACK_RIGHT_ARB                 0x2086
-#define WGL_AUX0_ARB                       0x2087
-#define WGL_AUX1_ARB                       0x2088
-#define WGL_AUX2_ARB                       0x2089
-#define WGL_AUX3_ARB                       0x208A
-#define WGL_AUX4_ARB                       0x208B
-#define WGL_AUX5_ARB                       0x208C
-#define WGL_AUX6_ARB                       0x208D
-#define WGL_AUX7_ARB                       0x208E
-#define WGL_AUX8_ARB                       0x208F
-#define WGL_AUX9_ARB                       0x2090
-#endif
-
-#ifndef WGL_FLOAT_COMPONENTS_NV
-#define WGL_FLOAT_COMPONENTS_NV        0x20B0
-#endif
-
-#ifndef WGL_ARB_multisample
-#define WGL_SAMPLE_BUFFERS_ARB         0x2041
-#define WGL_SAMPLES_ARB                0x2042
-#endif
-
-#ifndef GL_SAMPLES_ARB
-#define GL_SAMPLES_ARB 0x80A9
-#endif
-
-QGLFormat pfiToQGLFormat(HDC hdc, int pfi);
-
-static void qt_format_to_attrib_list(bool has_render_texture, const QGLFormat &f, int attribs[])
-{
-    int i = 0;
-    attribs[i++] = WGL_SUPPORT_OPENGL_ARB;
-    attribs[i++] = TRUE;
-    attribs[i++] = WGL_DRAW_TO_PBUFFER_ARB;
-    attribs[i++] = TRUE;
-
-    if (has_render_texture) {
-        attribs[i++] = WGL_BIND_TO_TEXTURE_RGBA_ARB;
-        attribs[i++] = TRUE;
-    }
-
-    attribs[i++] = WGL_COLOR_BITS_ARB;
-    attribs[i++] = 32;
-    attribs[i++] = WGL_DOUBLE_BUFFER_ARB;
-    attribs[i++] = FALSE;
-
-    if (f.stereo()) {
-        attribs[i++] = WGL_STEREO_ARB;
-        attribs[i++] = TRUE;
-    }
-    if (f.depth()) {
-        attribs[i++] = WGL_DEPTH_BITS_ARB;
-        attribs[i++] = f.depthBufferSize() == -1 ? 24 : f.depthBufferSize();
-    }
-    if (f.redBufferSize() != -1) {
-        attribs[i++] = WGL_RED_BITS_ARB;
-        attribs[i++] = f.redBufferSize();
-    }
-    if (f.greenBufferSize() != -1) {
-        attribs[i++] = WGL_GREEN_BITS_ARB;
-        attribs[i++] = f.greenBufferSize();
-    }
-    if (f.blueBufferSize() != -1) {
-        attribs[i++] = WGL_BLUE_BITS_ARB;
-        attribs[i++] = f.blueBufferSize();
-    }
-    if (f.alpha()) {
-        attribs[i++] = WGL_ALPHA_BITS_ARB;
-        attribs[i++] = f.alphaBufferSize() == -1 ? 8 : f.alphaBufferSize();
-    }
-    if (f.accum()) {
-        attribs[i++] = WGL_ACCUM_BITS_ARB;
-        attribs[i++] = f.accumBufferSize() == -1 ? 16 : f.accumBufferSize();
-    }
-    if (f.stencil()) {
-        attribs[i++] = WGL_STENCIL_BITS_ARB;
-        attribs[i++] = f.stencilBufferSize() == -1 ? 8 : f.stencilBufferSize();
-    }
-    if ((f.redBufferSize() > 8 || f.greenBufferSize() > 8
-         || f.blueBufferSize() > 8 || f.alphaBufferSize() > 8)
-        && (QGLExtensions::glExtensions() & QGLExtensions::NVFloatBuffer))
-    {
-        attribs[i++] = WGL_FLOAT_COMPONENTS_NV;
-        attribs[i++] = TRUE;
-    }
-    if (f.sampleBuffers()) {
-        attribs[i++] = WGL_SAMPLE_BUFFERS_ARB;
-        attribs[i++] = 1;
-        attribs[i++] = WGL_SAMPLES_ARB;
-        attribs[i++] = f.samples() == -1 ? 16 : f.samples();
-    }
-    attribs[i] = 0;
-}
-
-bool QGLPixelBufferPrivate::init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget)
-{
-    QGLTemporaryContext tempContext;
-
-    PFNWGLCREATEPBUFFERARBPROC wglCreatePbufferARB =
-        (PFNWGLCREATEPBUFFERARBPROC) wglGetProcAddress("wglCreatePbufferARB");
-    PFNWGLGETPBUFFERDCARBPROC wglGetPbufferDCARB =
-        (PFNWGLGETPBUFFERDCARBPROC) wglGetProcAddress("wglGetPbufferDCARB");
-    PFNWGLQUERYPBUFFERARBPROC wglQueryPbufferARB =
-        (PFNWGLQUERYPBUFFERARBPROC) wglGetProcAddress("wglQueryPbufferARB");
-    PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARB =
-        (PFNWGLCHOOSEPIXELFORMATARBPROC) wglGetProcAddress("wglChoosePixelFormatARB");
-
-    if (!wglCreatePbufferARB) // assumes that if one can be resolved, all of them can
-        return false;
-
-    dc = wglGetCurrentDC();
-    Q_ASSERT(dc);
-    has_render_texture = false;
-
-    // sample buffers doesn't work in conjunction with the render_texture extension
-    if (!f.sampleBuffers()) {
-        PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB =
-                (PFNWGLGETEXTENSIONSSTRINGARBPROC) wglGetProcAddress("wglGetExtensionsStringARB");
-
-        if (wglGetExtensionsStringARB) {
-            QString extensions(QLatin1String(wglGetExtensionsStringARB(dc)));
-            has_render_texture = extensions.contains(QLatin1String("WGL_ARB_render_texture"));
-        }
-    }
-
-    int attribs[40];
-    qt_format_to_attrib_list(has_render_texture, f, attribs);
-
-    // Find pbuffer capable pixel format.
-    unsigned int num_formats = 0;
-    int pixel_format;
-    wglChoosePixelFormatARB(dc, attribs, 0, 1, &pixel_format, &num_formats);
-
-    // some GL implementations don't support pbuffers with accum
-    // buffers, so try that before we give up
-    if (num_formats == 0 && f.accum()) {
-        QGLFormat tmp = f;
-        tmp.setAccum(false);
-        qt_format_to_attrib_list(has_render_texture, tmp, attribs);
-        wglChoosePixelFormatARB(dc, attribs, 0, 1, &pixel_format, &num_formats);
-    }
-
-    if (num_formats == 0) {
-        qWarning("QGLPixelBuffer: Unable to find a pixel format with pbuffer  - giving up.");
-        return false;
-    }
-    format = pfiToQGLFormat(dc, pixel_format);
-
-    // NB! The below ONLY works if the width/height are powers of 2.
-    // Set some pBuffer attributes so that we can use this pBuffer as
-    // a 2D RGBA texture target.
-    int pb_attribs[] = {WGL_TEXTURE_FORMAT_ARB, WGL_TEXTURE_RGBA_ARB,
-                        WGL_TEXTURE_TARGET_ARB, WGL_TEXTURE_2D_ARB, 0};
-
-    pbuf = wglCreatePbufferARB(dc, pixel_format, size.width(), size.height(),
-                               has_render_texture ? pb_attribs : 0);
-    if (!pbuf) {
-        // try again without the render_texture extension
-        pbuf = wglCreatePbufferARB(dc, pixel_format, size.width(), size.height(), 0);
-        has_render_texture = false;
-        if (!pbuf) {
-            qWarning("QGLPixelBuffer: Unable to create pbuffer [w=%d, h=%d] - giving up.", size.width(), size.height());
-            return false;
-        }
-    }
-
-    dc = wglGetPbufferDCARB(pbuf);
-    ctx = wglCreateContext(dc);
-    if (!dc || !ctx) {
-        qWarning("QGLPixelBuffer: Unable to create pbuffer context - giving up.");
-        return false;
-    }
-
-    // Explicitly disable the render_texture extension if we have a 
-    // multi-sampled pbuffer context. This seems to be a problem only with 
-    // ATI cards if multi-sampling is forced globally in the driver.
-    wglMakeCurrent(dc, ctx);
-    GLint samples = 0;
-    glGetIntegerv(GL_SAMPLES_ARB, &samples);
-    if (has_render_texture && samples != 0)
-        has_render_texture = false;
-
-    HGLRC share_ctx = shareWidget ? shareWidget->d_func()->glcx->d_func()->rc : 0;
-    if (share_ctx && !wglShareLists(share_ctx, ctx))
-        qWarning("QGLPixelBuffer: Unable to share display lists - with share widget.");
-
-    int width, height;
-    wglQueryPbufferARB(pbuf, WGL_PBUFFER_WIDTH_ARB, &width);
-    wglQueryPbufferARB(pbuf, WGL_PBUFFER_HEIGHT_ARB, &height);
-    return true;
-}
-
-bool QGLPixelBufferPrivate::cleanup()
-{
-    PFNWGLRELEASEPBUFFERDCARBPROC wglReleasePbufferDCARB =
-        (PFNWGLRELEASEPBUFFERDCARBPROC) wglGetProcAddress("wglReleasePbufferDCARB");
-    PFNWGLDESTROYPBUFFERARBPROC wglDestroyPbufferARB =
-        (PFNWGLDESTROYPBUFFERARBPROC) wglGetProcAddress("wglDestroyPbufferARB");
-    if (!invalid && wglReleasePbufferDCARB && wglDestroyPbufferARB) {
-        wglReleasePbufferDCARB(pbuf, dc);
-        wglDestroyPbufferARB(pbuf);
-    }
-    return true;
-}
-
-bool QGLPixelBuffer::bindToDynamicTexture(GLuint texture_id)
-{
-    Q_D(QGLPixelBuffer);
-    if (d->invalid || !d->has_render_texture)
-        return false;
-    PFNWGLBINDTEXIMAGEARBPROC wglBindTexImageARB =
-        (PFNWGLBINDTEXIMAGEARBPROC) wglGetProcAddress("wglBindTexImageARB");
-    if (wglBindTexImageARB) {
-        glBindTexture(GL_TEXTURE_2D, texture_id);
-        return wglBindTexImageARB(d->pbuf, WGL_FRONT_LEFT_ARB);
-    }
-    return false;
-}
-
-void QGLPixelBuffer::releaseFromDynamicTexture()
-{
-    Q_D(QGLPixelBuffer);
-    if (d->invalid || !d->has_render_texture)
-        return;
-    PFNWGLRELEASETEXIMAGEARBPROC wglReleaseTexImageARB =
-        (PFNWGLRELEASETEXIMAGEARBPROC) wglGetProcAddress("wglReleaseTexImageARB");
-    if (wglReleaseTexImageARB)
-        wglReleaseTexImageARB(d->pbuf, WGL_FRONT_LEFT_ARB);
-}
-
-bool QGLPixelBuffer::hasOpenGLPbuffers()
-{
-    bool ret = false;
-    QGLTemporaryContext *tmpContext = 0;
-    if (!QGLContext::currentContext())
-        tmpContext = new QGLTemporaryContext;
-    PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB =
-        (PFNWGLGETEXTENSIONSSTRINGARBPROC) wglGetProcAddress("wglGetExtensionsStringARB");
-    if (wglGetExtensionsStringARB) {
-        QString extensions(QLatin1String(wglGetExtensionsStringARB(wglGetCurrentDC())));
-        if (extensions.contains(QLatin1String("WGL_ARB_pbuffer"))
-            && extensions.contains(QLatin1String("WGL_ARB_pixel_format"))) {
-            ret = true;
-        }
-    }
-    if (tmpContext)
-        delete tmpContext;
-    return ret;
-}
-
-QT_END_NAMESPACE