From a0c4815433ccd57322f4f7703ca35e9ccfa59250 Mon Sep 17 00:00:00 2001 From: marha Date: Thu, 8 Oct 2009 13:15:52 +0000 Subject: Added MesaLib-7.6 --- mesalib/docs/intro.html | 315 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 315 insertions(+) create mode 100644 mesalib/docs/intro.html (limited to 'mesalib/docs/intro.html') diff --git a/mesalib/docs/intro.html b/mesalib/docs/intro.html new file mode 100644 index 000000000..aae2e6e19 --- /dev/null +++ b/mesalib/docs/intro.html @@ -0,0 +1,315 @@ + + +Mesa Introduction + + + + + +

Introduction

+ +

+Mesa is an open-source implementation of the +OpenGL specification - +a system for rendering interactive 3D graphics. +

+ +

+A variety of device drivers allows Mesa to be used in many different +environments ranging from software emulation to complete hardware acceleration +for modern GPUs. +

+ +

+Mesa ties into several other open-source projects: the +Direct Rendering +Infrastructure and X.org to +provide OpenGL support to users of X on Linux, FreeBSD and other operating +systems. +

+ + + +

Project History

+ +

+The Mesa project was originally started by Brian Paul. +Here's a short history of the project. +

+ +

+August, 1993: I begin working on Mesa in my spare time. The project +has no name at that point. I was simply interested in writing a simple +3D graphics library that used the then-new OpenGL API. I was partially +inspired by the VOGL library which emulated a subset of IRIS GL. +I had been programming with IRIS GL since 1991. +

+ +

+November 1994: I contact SGI to ask permission to distribute my OpenGL-like +graphics library on the internet. SGI was generally receptive to the +idea and after negotiations with SGI's legal department, I get permission +to release it. +

+ +

+February 1995: Mesa 1.0 is released on the internet. I expected that +a few people would be interested in it, but not thousands. +I was soon receiving patches, new features and thank-you notes on a +daily basis. That encouraged me to continue working on Mesa. The +name Mesa just popped into my head one day. SGI had asked me not to use +the terms "Open" or "GL" in the project name and I didn't +want to make up a new acronym. Later, I heard of the Mesa programming +language and the Mesa spreadsheet for NeXTStep. +

+ +

+In the early days, OpenGL wasn't available on too many systems. +It even took a while for SGI to support it across their product line. +Mesa filled a big hole during that time. +For a lot of people, Mesa was their first introduction to OpenGL. +I think SGI recognized that Mesa actually helped to promote +the OpenGL API, so they didn't feel threatened by the project. +

+ + +

+1995-1996: I continue working on Mesa both during my spare time and during +my work hours at the Space Science and Engineering Center at the University +of Wisconsin in Madison. My supervisor, Bill Hibbard, lets me do this because +Mesa is now being using for the Vis5D project. +

+October 1996: Mesa 2.0 is released. It implements the OpenGL 1.1 specification. +

+ +

+March 1997: Mesa 2.2 is released. It supports the new 3dfx Voodoo graphics +card via the Glide library. It's the first really popular hardware OpenGL +implementation for Linux. +

+ +

+September 1998: Mesa 3.0 is released. It's the first publicly-available +implementation of the OpenGL 1.2 API. +

+ +

+March 1999: I attend my first OpenGL ARB meeting. I contribute to the +development of several official OpenGL extensions over the years. +

+ +

+September 1999: I'm hired by Precision Insight, Inc. Mesa is a key +component of 3D hardware acceleration in the new DRI project for XFree86. +Drivers for 3dfx, 3dLabs, Intel, Matrox and ATI hardware soon follow. +

+ +

+October 2001: Mesa 4.0 is released. +It implements the OpenGL 1.3 specification. +

+ + +

+November 2001: I cofound +Tungsten Graphics, Inc. with Keith Whitwell, Jens Owen, David Dawes and +Frank LaMonica. +I continue to develop Mesa as part of my resposibilities with Tungsten +Graphics and as a spare-time project. +

+ +

+November 2002: Mesa 5.0 is released. +It implements the OpenGL 1.4 specification. +

+ +

+January 2003: Mesa 6.0 is released. It implements the OpenGL 1.5 +specification as well as the GL_ARB_vertex_program and +GL_ARB_fragment_program extensions. +

+ +

+June 2007: Mesa 7.0 is released, implementing the OpenGL 2.1 specification +and OpenGL Shading Language. +

+ + +

+Ongoing: Mesa is used as the core of many hardware OpenGL drivers for +the XFree86 and X.org X servers within the +DRI project. +I continue to enhance Mesa with new extensions and features. +

+ + + +

Major Versions

+ +

+This is a summary of the major versions of Mesa. +Mesa's major version number has been incremented whenever a new version +of the OpenGL specification is implemented. +

+ + +

Version 7.x features

+Version 7.x of Mesa implements the OpenGL 2.1 API. The main feature +of OpenGL 2.x is the OpenGL Shading Language. +

+ + +

Version 6.x features

+Version 6.x of Mesa implements the OpenGL 1.5 API with the following +extensions incorporated as standard features: +

GL_ARB_occlusion_query +
GL_ARB_vertex_buffer_object +
GL_EXT_shadow_funcs +

+Also note that several OpenGL tokens were renamed in OpenGL 1.5 +for the sake of consistency. +The old tokens are still available. +

+New Token                   Old Token
+------------------------------------------------------------
+GL_FOG_COORD_SRC            GL_FOG_COORDINATE_SOURCE
+GL_FOG_COORD                GL_FOG_COORDINATE
+GL_CURRENT_FOG_COORD        GL_CURRENT_FOG_COORDINATE
+GL_FOG_COORD_ARRAY_TYPE     GL_FOG_COORDINATE_ARRAY_TYPE
+GL_FOG_COORD_ARRAY_STRIDE   GL_FOG_COORDINATE_ARRAY_STRIDE
+GL_FOG_COORD_ARRAY_POINTER  GL_FOG_COORDINATE_ARRAY_POINTER
+GL_FOG_COORD_ARRAY          GL_FOG_COORDINATE_ARRAY
+GL_SRC0_RGB                 GL_SOURCE0_RGB
+GL_SRC1_RGB                 GL_SOURCE1_RGB
+GL_SRC2_RGB                 GL_SOURCE2_RGB
+GL_SRC0_ALPHA               GL_SOURCE0_ALPHA
+GL_SRC1_ALPHA               GL_SOURCE1_ALPHA
+GL_SRC2_ALPHA               GL_SOURCE2_ALPHA
+

+See the + +OpenGL specification for more details. +

+ + + +

Version 5.x features

+Version 5.x of Mesa implements the OpenGL 1.4 API with the following +extensions incorporated as standard features: +

GL_ARB_depth_texture +
GL_ARB_shadow +
GL_ARB_texture_env_crossbar +
GL_ARB_texture_mirror_repeat +
GL_ARB_window_pos +
GL_EXT_blend_color +
GL_EXT_blend_func_separate +
GL_EXT_blend_logic_op +
GL_EXT_blend_minmax +
GL_EXT_blend_subtract +
GL_EXT_fog_coord +
GL_EXT_multi_draw_arrays +
GL_EXT_point_parameters +
GL_EXT_secondary_color +
GL_EXT_stencil_wrap +
GL_EXT_texture_lod_bias (plus, a per-texture LOD bias parameter) +
GL_SGIS_generate_mipmap +

+ + +

Version 4.x features

+ +

+Version 4.x of Mesa implements the OpenGL 1.3 API with the following +extensions incorporated as standard features: +

+ +

GL_ARB_multisample +
GL_ARB_multitexture +
GL_ARB_texture_border_clamp +
GL_ARB_texture_compression +
GL_ARB_texture_cube_map +
GL_ARB_texture_env_add +
GL_ARB_texture_env_combine +
GL_ARB_texture_env_dot3 +
GL_ARB_transpose_matrix +

+ +

Version 3.x features

+ +

+Version 3.x of Mesa implements the OpenGL 1.2 API with the following +features: +

BGR, BGRA and packed pixel formats +
New texture border clamp mode +
glDrawRangeElements() +
standard 3-D texturing +
advanced MIPMAP control +
separate specular color interpolation +

+ + +

Version 2.x features

+Version 2.x of Mesa implements the OpenGL 1.1 API with the following +features. +

Texture mapping: +
- glAreTexturesResident +
- glBindTexture +
- glCopyTexImage1D +
- glCopyTexImage2D +
- glCopyTexSubImage1D +
- glCopyTexSubImage2D +
- glDeleteTextures +
- glGenTextures +
- glIsTexture +
- glPrioritizeTextures +
- glTexSubImage1D +
- glTexSubImage2D +
+
Vertex Arrays: +
- glArrayElement +
- glColorPointer +
- glDrawElements +
- glEdgeFlagPointer +
- glIndexPointer +
- glInterleavedArrays +
- glNormalPointer +
- glTexCoordPointer +
- glVertexPointer +
+
Client state management: +
- glDisableClientState +
- glEnableClientState +
- glPopClientAttrib +
- glPushClientAttrib +
+
Misc: +
- glGetPointer +
- glIndexub +
- glIndexubv +
- glPolygonOffset +
+

+ + + + -- cgit v1.2.3