diff options
| -rw-r--r-- | src/mesa/swrast/s_context.h | 46 |
1 files changed, 22 insertions, 24 deletions
diff --git a/src/mesa/swrast/s_context.h b/src/mesa/swrast/s_context.h index 947d48e3af..30c2315ba0 100644 --- a/src/mesa/swrast/s_context.h +++ b/src/mesa/swrast/s_context.h @@ -37,30 +37,6 @@ /** - * \struct sw_span - * \brief Contains data for either a horizontal line or a set of - * pixels that are passed through a pipeline of functions before being - * drawn. - * - * The sw_span structure describes the colors, Z, fogcoord, texcoords, - * etc for either a horizontal run or a set of independent pixels. We - * can either specify a base/step to indicate interpolated values, or - * fill in arrays of values. The interpMask and arrayMask bitfields - * indicate which are active. - * - * With this structure it's easy to hand-off span rasterization to - * subroutines instead of doing it all inline in the triangle functions - * like we used to do. - * It also cleans up the local variable namespace a great deal. - * - * It would be interesting to experiment with multiprocessor rasterization - * with this structure. The triangle rasterizer could simply emit a - * stream of these structures which would be consumed by one or more - * span-processing threads which could run in parallel. - */ - - -/** * \defgroup SpanFlags SPAN_XXX-flags * Bitmasks to indicate which span_arrays need to be computed * (sw_span::interpMask) or have already been filled @@ -109,6 +85,28 @@ struct span_arrays { }; +/** + * \struct sw_span + * \brief Contains data for either a horizontal line or a set of + * pixels that are passed through a pipeline of functions before being + * drawn. + * + * The sw_span structure describes the colors, Z, fogcoord, texcoords, + * etc for either a horizontal run or an array of independent pixels. + * We can either specify a base/step to indicate interpolated values, or + * fill in arrays of values. The interpMask and arrayMask bitfields + * indicate which are active. + * + * With this structure it's easy to hand-off span rasterization to + * subroutines instead of doing it all inline in the triangle functions + * like we used to do. + * It also cleans up the local variable namespace a great deal. + * + * It would be interesting to experiment with multiprocessor rasterization + * with this structure. The triangle rasterizer could simply emit a + * stream of these structures which would be consumed by one or more + * span-processing threads which could run in parallel. + */ struct sw_span { GLint x, y; |