diff options
Diffstat (limited to 'src/opengl/qglpixelbuffer_win.cpp')
-rw-r--r-- | src/opengl/qglpixelbuffer_win.cpp | 403 |
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 |