diff options
Diffstat (limited to 'src/mesa/swrast/s_span.c')
| -rw-r--r-- | src/mesa/swrast/s_span.c | 43 |
1 files changed, 21 insertions, 22 deletions
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c index 736049f7b9..28b6718905 100644 --- a/src/mesa/swrast/s_span.c +++ b/src/mesa/swrast/s_span.c @@ -1,4 +1,4 @@ -/* $Id: s_span.c,v 1.30 2002/02/02 21:40:33 brianp Exp $ */ +/* $Id: s_span.c,v 1.31 2002/02/04 15:59:29 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -25,12 +25,13 @@ */ -/* - * pixel span rasterization: - * These functions implement the rasterization pipeline. +/** + * \file vpstate.c + * \brief Span processing functions used by all rasterization functions. + * This is where all the per-fragment tests are performed + * \author Brian Paul */ - #include "glheader.h" #include "colormac.h" #include "context.h" @@ -50,7 +51,7 @@ #include "s_texture.h" -/* +/** * Init span's Z interpolation values to the RasterPos Z. * Used during setup for glDraw/CopyPixels. */ @@ -66,7 +67,7 @@ _mesa_span_default_z( GLcontext *ctx, struct sw_span *span ) } -/* +/** * Init span's fog interpolation values to the RasterPos fog. * Used during setup for glDraw/CopyPixels. */ @@ -82,7 +83,7 @@ _mesa_span_default_fog( GLcontext *ctx, struct sw_span *span ) } -/* +/** * Init span's color or index interpolation values to the RasterPos color. * Used during setup for glDraw/CopyPixels. */ @@ -382,7 +383,7 @@ interpolate_texcoords(GLcontext *ctx, struct sw_span *span) } -/* +/** * Apply the current polygon stipple pattern to a span of pixels. */ static void @@ -410,7 +411,7 @@ stipple_polygon_span( GLcontext *ctx, struct sw_span *span ) } -/* +/** * Clip a pixel span to the current buffer/window boundaries: * DrawBuffer->_Xmin, _Xmax, _Ymin, _Ymax. This will accomplish * window clipping and scissoring. @@ -479,7 +480,7 @@ clip_span( GLcontext *ctx, struct sw_span *span ) -/* +/** * Draw to more than one color buffer (or none). */ static void @@ -533,7 +534,7 @@ multi_write_index_span( GLcontext *ctx, struct sw_span *span ) } -/* +/** * Draw to more than one RGBA color buffer (or none). * All fragment operations, up to (but not) blending/logicop should * have been done first. @@ -620,7 +621,7 @@ multi_write_rgba_span( GLcontext *ctx, struct sw_span *span ) -/* +/** * This function may modify any of the array values in the span. * span->interpMask and span->arrayMask may be changed but will be restored * to their original values before returning. @@ -679,14 +680,14 @@ _mesa_write_index_span( GLcontext *ctx, struct sw_span *span, interpolate_z(ctx, span); if (ctx->Stencil.Enabled) { - if (_mesa_stencil_and_ztest_span(ctx, span) == GL_FALSE) { + if (!_mesa_stencil_and_ztest_span(ctx, span)) { span->arrayMask = origArrayMask; return; } } else { ASSERT(ctx->Depth.Test); - if (_mesa_depth_test_span(ctx, span) == 0) { + if (!_mesa_depth_test_span(ctx, span)) { span->arrayMask = origArrayMask; return; } @@ -782,7 +783,7 @@ _mesa_write_index_span( GLcontext *ctx, struct sw_span *span, } -/* +/** * This function may modify any of the array values in the span. * span->interpMask and span->arrayMask may be changed but will be restored * to their original values before returning. @@ -992,7 +993,7 @@ _mesa_write_rgba_span( GLcontext *ctx, struct sw_span *span, } -/* +/** * Add specular color to base color. This is used only when * GL_LIGHT_MODEL_COLOR_CONTROL = GL_SEPARATE_SPECULAR_COLOR. */ @@ -1018,7 +1019,7 @@ add_colors(GLuint n, GLchan rgba[][4], GLchan specular[][4] ) } -/* +/** * This function may modify any of the array values in the span. * span->interpMask and span->arrayMask may be changed but will be restored * to their original values before returning. @@ -1225,7 +1226,7 @@ _mesa_write_texture_span( GLcontext *ctx, struct sw_span *span, -/* +/** * Read RGBA pixels from frame buffer. Clipping will be done to prevent * reading ouside the buffer's boundaries. */ @@ -1277,9 +1278,7 @@ _mesa_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer, } - - -/* +/** * Read CI pixels from frame buffer. Clipping will be done to prevent * reading ouside the buffer's boundaries. */ |