diff options
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_quad_depth_test.c | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/src/gallium/drivers/softpipe/sp_quad_depth_test.c b/src/gallium/drivers/softpipe/sp_quad_depth_test.c index 5854cee1be..17cd5b8207 100644 --- a/src/gallium/drivers/softpipe/sp_quad_depth_test.c +++ b/src/gallium/drivers/softpipe/sp_quad_depth_test.c @@ -1,6 +1,7 @@ /************************************************************************** * * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * Copyright 2010 VMware, Inc. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a @@ -18,7 +19,7 @@ * THE SOFTWARE IS 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 NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS 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 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. @@ -26,7 +27,7 @@ **************************************************************************/ /** - * \brief Quad depth testing + * \brief Quad depth / stencil testing */ #include "pipe/p_defines.h" @@ -96,7 +97,9 @@ get_depth_stencil_values( struct depth_data *data, } } -/* If the shader has not been run, interpolate the depth values + +/** + * If the shader has not been run, interpolate the depth values * ourselves. */ static void @@ -115,6 +118,9 @@ interpolate_quad_depth( struct quad_header *quad ) } +/** + * Compute the depth_data::qzzzz[] values from the float fragment Z values. + */ static void convert_quad_depth( struct depth_data *data, const struct quad_header *quad ) @@ -173,6 +179,9 @@ convert_quad_depth( struct depth_data *data, +/** + * Write data->bzzzz[] values and data->stencilVals into the Z/stencil buffer. + */ static void write_depth_stencil_values( struct depth_data *data, struct quad_header *quad ) @@ -225,7 +234,6 @@ write_depth_stencil_values( struct depth_data *data, - /** Only 8-bit stencil supported */ #define STENCIL_MAX 0xff @@ -408,12 +416,11 @@ apply_stencil_op(struct depth_data *data, -/* +/** * To increase efficiency, we should probably have multiple versions * of this function that are specifically for Z16, Z32 and FP Z buffers. * Try to effectively do that with codegen... */ - static boolean depth_test_quad(struct quad_stage *qs, struct depth_data *data, @@ -523,7 +530,6 @@ depth_stencil_test_quad(struct quad_stage *qs, wrtMask = softpipe->depth_stencil->stencil[face].writemask; valMask = softpipe->depth_stencil->stencil[face].valuemask; - /* do the stencil test first */ { unsigned passMask, failMask; @@ -563,7 +569,7 @@ depth_stencil_test_quad(struct quad_stage *qs, #define ALPHATEST( FUNC, COMP ) \ - static int \ + static int \ alpha_test_quads_##FUNC( struct quad_stage *qs, \ struct quad_header *quads[], \ unsigned nr ) \ @@ -629,6 +635,7 @@ alpha_test_quads(struct quad_stage *qs, } } + static unsigned mask_count[16] = { 0, /* 0x0 */ @@ -665,6 +672,9 @@ get_depth_bits(struct quad_stage *qs) +/** + * General depth/stencil test function. Used when there's no fast-path. + */ static void depth_test_quads_fallback(struct quad_stage *qs, struct quad_header *quads[], @@ -712,7 +722,6 @@ depth_test_quads_fallback(struct quad_stage *qs, write_depth_stencil_values(&data, quads[i]); } - quads[pass++] = quads[i]; } @@ -848,22 +857,23 @@ choose_depth_test(struct quad_stage *qs, - - -static void depth_test_begin(struct quad_stage *qs) +static void +depth_test_begin(struct quad_stage *qs) { qs->run = choose_depth_test; qs->next->begin(qs->next); } -static void depth_test_destroy(struct quad_stage *qs) +static void +depth_test_destroy(struct quad_stage *qs) { FREE( qs ); } -struct quad_stage *sp_quad_depth_test_stage( struct softpipe_context *softpipe ) +struct quad_stage * +sp_quad_depth_test_stage(struct softpipe_context *softpipe) { struct quad_stage *stage = CALLOC_STRUCT(quad_stage); |