rpi-firmware-e1050e94821a70b2e4c72b318d6c6c968552e9a2.tar.gz

OpenVG 1.1 Reference Implementation ----------------------------------- Copyright (c) 2007 The Khronos Group Inc. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and /or associated documentation files (the "Materials "), to deal in the Materials without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Materials, and to permit persons to whom the Materials are furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Materials. THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. Version ------- Official RI for OpenVG 1.1 Released: May 13, 2008 Release Notes ------------- This release is based on OpenVG 1.1 and EGL 1.3 specifications. This release is Windows-only, although the source code compiles at least on Mac OS X 10.5 and Cygwin. Project files are provided for MSVC 6. This archive contains sources for OpenVG RI, VGU and EGL. There's also a precompiled libOpenVG.dll that contains OpenVG and EGL implementations. Package Structure ----------------- bin win32 libOpenVG.dll OpenVG Windows .dll tiger.exe Windows executable of the Tiger sample lib libOpenVG.lib MSVC 6 dll import library ri openvg_ri.dsp MSVC 6 project file for libOpenVG.dll src .cpp and .h -files of the reference implementation win32 Windows backend for EGL macosx Mac OS X backend for EGL null null backend for EGL include Public OpenVG and EGL headers EGL egl.h VG openvg.h vgu.h samples samples.dsw MSVC 6 workspace file for tiger sample and libOpenVG.dll samples.dsp MSVC 6 project file for tiger.exe tiger main.c tiger.c tiger.h readme.txt license.txt Samples ------- Tiger The release contains a sample application that renders an image of a tiger. Note that the sample doesn't start immediately, since it takes a few seconds to render the image. Resizing the window rerenders the image in the new resolution. Known Issues ------------ -EGL functionality is incomplete (some functions lack proper error checking, some attribs may not be processed, etc.) -When opening samples.dsw, MSVC may complain about missing Perforce connection. Just ignore that. Changes ------- Nov 25, 2008 -Clamp color transform scale to [-127, 127] and bias to [-1, 1] May 13, 2008 - Changed 8 sample MSAA configs into 32 sample configs - Changed max gaussian std deviation to 16 (was 128) - VG_DRAW_IMAGE_MULTIPLY converts luminance to RGB if either paint or image color is RGB - Fixes A40102 by storing input floats as is February 12, 2008 - fixed arc transformation. - fixed point along path corner cases. - partially fixed A40102 by not filtering invalid float input. December 12, 2007 - fixed an overflow bug in vgFillMaskLayer error handling. - increased accuracy for Gaussian blur. The new code avoids an infinite loop with a very small std dev. - fixed a bug in Font::find that caused deleted fonts to be returned. November 20, 2007 - reimplemented 1,2 & 4 bits per pixel images - fixed vgGetParameter for paint - fixed https://cvs.khronos.org/bugzilla/show_bug.cgi?id=1095 RI handling of child images with shared storage -vgGetParent: return closest valid ancestor, or image itself if no ancestor was found. - EGL refactoring & clean up - divided OS native parts of EGL into separate files that should be included in that platform's build - added a generic OS backend for EGL (not thread safe, no window rendering) - fixed https://cvs.khronos.org/bugzilla/show_bug.cgi?id=1943 RI does not handle channel mask correctly for lL/sL/BW1 - removed EGL_IMAGE_IN_USE_ERROR from vgDrawGlyph(s) - added configs without an alpha mask to facilitate CTS reference image creation - implemented more accurate stroking by rendering each stroke part into a coverage buffer and compositing from there -fixes https://cvs.khronos.org/bugzilla/show_bug.cgi?id=2221 RI errors at end of curved strokes. - bugfix: joins used path midpoints, interpolateStroke and caps didn't => seams (visible in some G60101 cases) - vgCreateMaskLayer returns VG_INVALID_HANDLE if the current surface doesn't have a mask layer - vgRenderToMask bugfix: temp buffer is now cleared between fill and stroke - bugfix: vgCreateImage returns an error if allowedQuality is zero - bugfix: vgSetPaint returns an error if paintModes is zero - bugfix: vgCreateFont doesn't return an error if capacityHint is zero - bugfix: writeFilteredPixel writes also into luminance formats October 12, 2007 -Upgrade to OpenVG 1.1, including -Implemented MSAA, added 4 and 8 sample EGLConfigs -Implemented VG_A_4 and VG_A_1 image formats and EGLConfigs -Implemented Glyph API -Implemented new masking functions -Implemented color transform -Implemented native EGL backends for Windows & Mac OS X => Fix for bugzilla 1376 RI uses non-standard EGL implementation *RI now works with CTS generation's native_w32.c (native_ri.c can be removed). *dependency on GLUT has been removed. GLUT code is still included and can be compiled in instead of native by defining RI_USE_GLUT. -16 bit EGLConfigs now expose 4 mask bits, 8 bit configs 8, 4 bit configs 4, and 1 bit configs 1. MSAA configs expose one bit per sample. -EGL now works with any display, not just EGL_DEFAULT_DISPLAY -Simplification: removed code to handle less than 8 bits per pixel. Smaller bit depths always allocate 8 bits per pixel. -Changed rasterizer data types to RScalar and RVector2 so that it's possible to alter RIfloat precision without affecting rasterization. -Accuracy: increased circularLerp precision -Bugfix: matrix inversion now checks if the input matrix is affine and forces the inverted matrix to be affine as well -Bugfix: fixed eglCopyBuffers (copied from dst to dst) -Bugfix: fixed eglCreatePixmapSurface (allowed only VG_sRGBA_8888, didn't give an error if config had more than one sample per pixel) -Bugfix: bugzilla 2465: RI asserts when setting maximum amount of gradient stops February 27, 2007 -changed to MIT open source license. -bugfix, bugzilla 820: RGB and luminance are now treated as different color spaces. -bugfix, bugzilla 1094/1095: vgGetParent now returns the input image in case its parent is already destroyed. December 1, 2006 -bugfix, bugzilla 649: allowed image quality is now taken into account when deciding resampling filter. -bugfix, bugzilla 650, bad stroking accuracy reported by TK Chan and Mika Tuomi: curve tessellation is now increased from 64 to 256. RI_MAX_EDGES has been increased from 100000 to 262144 to facilitate the increased number of edges. -bugfix, reported by Chris Wynn, affects I30206: degenerate gradients in repeat mode now render the first stop color instead of the last one. -changed float to RIfloat, added an option to compile RIfloat into a class to test reduced precision float ops September 6, 2006 -bugfix, bugzilla 591: CLOSE_PATH followed by a MOVE_TO doesn't produce an extra end cap anymore -abs values of arc axis lengths are taken only just before rendering -undefined bits of bitfields are now ignored in the API September 1, 2006 -changed colorToInt to use mathematical round-to-nearest as recommended by new language in section 3.4.4. -implemented VG_PAINT_COLOR_RAMP_PREMULTIPLIED -implemented VG_STROKE_D