diff options
Diffstat (limited to 'linuxgraphicsdrivers.lyx')
| -rw-r--r-- | linuxgraphicsdrivers.lyx | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/linuxgraphicsdrivers.lyx b/linuxgraphicsdrivers.lyx index 8ad801e..5901748 100644 --- a/linuxgraphicsdrivers.lyx +++ b/linuxgraphicsdrivers.lyx @@ -9153,8 +9153,8 @@ Winsys \end_layout \begin_layout Standard -The name Winsys is actually a bit of a misnaming, but it wasn't changed - since Gallium was introduced. +The name Winsys is actually a bit of a misnomer, but it hasn't changed since + Gallium was introduced. The Winsys provides the hardware drivers with an internal fixed interface to talk to the operating system. You can easily imagine a driver for the same hardware working on different @@ -9175,10 +9175,9 @@ Pipe driver \begin_layout Standard \lang english -Pipe drivers are the components that are actually implementing the Gallium - interface. - They are talking directly to the hardware, through the Winsys or direct - usage of the respective operating system routines. +Pipe drivers are the components that actually implement the Gallium interface. + They talk directly to the hardware, through the Winsys or direct usage + of the respective operating system routines. The pipe driver has to fully hide how your hardware works internally. \end_layout @@ -9191,10 +9190,10 @@ State trackers \begin_layout Standard \lang english -State trackers are sitting on top of the Gallium interface and implement - a specific API like OpenGL, OpenCL or other custom APIs that use the GPU - to accelerate something. - They do so by turning the API calls into hardware independent acceleration +State trackers sit on top of the Gallium interface and implement a specific + API like OpenGL, OpenCL or other custom APIs that use the GPU to accelerate + something. + They do so by turning the API calls into hardware-independent acceleration operations covered by Gallium. \end_layout @@ -9202,9 +9201,9 @@ State trackers are sitting on top of the Gallium interface and implement \begin_layout Standard \lang english -Gallium abstracts away most of the internals of the GPU, however it can - not hide the different featuresets exposed by the large numbers of GPUs - used today. +Gallium abstracts away most of the internals of the GPU, however it cannot + hide the different featuresets exposed by the large numbers of GPUs used + today. Some things are hidden internally, like some drivers using a JIT compiler to do fallbacks when the GPU can't execute a specific shader and it seems worthwhile to do a software fallback, but mostly the differences in capabilitie @@ -9267,15 +9266,16 @@ In order to operate shaders, Gallium features an internal shader description In particular, v.x is the first component of vector v, v.xyzw are all 4 component s of v in that order, and swizzling is allowed, for example v.wzyx reverses the component order. - It is also legal to replicate a component, for example v.xxxx means four - times the x component of v and v.yyzz means two times y and two times z. + It is also legal to replicate a component, for example v.xxxx means the + x component of v is cloned to all four components and v.yyzz means two identical + y and two identical z. \end_layout \begin_layout Standard \lang english -These components usually carry no semantics, and despite their name they - can very well carry a color or an opacity value indifferently. +These components usually carry no semantics, and despite their coordinate + names they can just as easily represent a color or an opacity value. \end_layout |