/**
- * Special-case Z testing for 16-bit Zbuffer, PIPE_FUNC_LESS and
- * Z buffer writes enabled.
- *
- * NOTE: there's no guarantee that the quads are sequentially side by
- * side. The fragment shader may have culled some quads, etc. Sliver
- * triangles may generate non-sequential quads.
+ * Special-case Z testing for 16-bit Zbuffer and Z buffer writes enabled.
*/
-static void
-depth_interp_z16_less_write(struct quad_stage *qs,
- struct quad_header *quads[],
- unsigned nr)
-{
- unsigned i, pass = 0;
- const unsigned ix = quads[0]->input.x0;
- const unsigned iy = quads[0]->input.y0;
- const float fx = (float) ix;
- const float fy = (float) iy;
- const float dzdx = quads[0]->posCoef->dadx[2];
- const float dzdy = quads[0]->posCoef->dady[2];
- const float z0 = quads[0]->posCoef->a0[2] + dzdx * fx + dzdy * fy;
- struct softpipe_cached_tile *tile;
- ushort (*depth16)[TILE_SIZE];
- ushort init_idepth[4], idepth[4], depth_step;
- const float scale = 65535.0;
-
- /* compute scaled depth of the four pixels in first quad */
- init_idepth[0] = (ushort)((z0) * scale);
- init_idepth[1] = (ushort)((z0 + dzdx) * scale);
- init_idepth[2] = (ushort)((z0 + dzdy) * scale);
- init_idepth[3] = (ushort)((z0 + dzdx + dzdy) * scale);
-
- depth_step = (ushort)(dzdx * scale);
-
- tile = sp_get_cached_tile(qs->softpipe->zsbuf_cache, ix, iy);
-
- for (i = 0; i < nr; i++) {
- const unsigned outmask = quads[i]->inout.mask;
- const int dx = quads[i]->input.x0 - ix;
- unsigned mask = 0;
-
- /* compute depth for this quad */
- idepth[0] = init_idepth[0] + dx * depth_step;
- idepth[1] = init_idepth[1] + dx * depth_step;
- idepth[2] = init_idepth[2] + dx * depth_step;
- idepth[3] = init_idepth[3] + dx * depth_step;
-
- depth16 = (ushort (*)[TILE_SIZE])
- &tile->data.depth16[iy % TILE_SIZE][(ix + dx)% TILE_SIZE];
-
- if ((outmask & 1) && idepth[0] < depth16[0][0]) {
- depth16[0][0] = idepth[0];
- mask |= (1 << 0);
- }
-
- if ((outmask & 2) && idepth[1] < depth16[0][1]) {
- depth16[0][1] = idepth[1];
- mask |= (1 << 1);
- }
-
- if ((outmask & 4) && idepth[2] < depth16[1][0]) {
- depth16[1][0] = idepth[2];
- mask |= (1 << 2);
- }
-
- if ((outmask & 8) && idepth[3] < depth16[1][1]) {
- depth16[1][1] = idepth[3];
- mask |= (1 << 3);
- }
-
- quads[i]->inout.mask = mask;
- if (quads[i]->inout.mask)
- quads[pass++] = quads[i];
- }
-
- if (pass)
- qs->next->run(qs->next, quads, pass);
-
-}
-
-
-/**
- * Special-case Z testing for 16-bit Zbuffer, PIPE_FUNC_LEQUAL and
- * Z buffer writes enabled.
- *
- * NOTE: there's no guarantee that the quads are sequentially side by
- * side. The fragment shader may have culled some quads, etc. Sliver
- * triangles may generate non-sequential quads.
- */
-static void
-depth_interp_z16_lequal_write(struct quad_stage *qs,
- struct quad_header *quads[],
- unsigned nr)
-{
- unsigned i, pass = 0;
- const unsigned ix = quads[0]->input.x0;
- const unsigned iy = quads[0]->input.y0;
- const float fx = (float) ix;
- const float fy = (float) iy;
- const float dzdx = quads[0]->posCoef->dadx[2];
- const float dzdy = quads[0]->posCoef->dady[2];
- const float z0 = quads[0]->posCoef->a0[2] + dzdx * fx + dzdy * fy;
- struct softpipe_cached_tile *tile;
- ushort (*depth16)[TILE_SIZE];
- ushort init_idepth[4], idepth[4], depth_step;
- const float scale = 65535.0;
-
- /* compute scaled depth of the four pixels in first quad */
- init_idepth[0] = (ushort)((z0) * scale);
- init_idepth[1] = (ushort)((z0 + dzdx) * scale);
- init_idepth[2] = (ushort)((z0 + dzdy) * scale);
- init_idepth[3] = (ushort)((z0 + dzdx + dzdy) * scale);
-
- depth_step = (ushort)(dzdx * scale);
-
- tile = sp_get_cached_tile(qs->softpipe->zsbuf_cache, ix, iy);
-
- for (i = 0; i < nr; i++) {
- const unsigned outmask = quads[i]->inout.mask;
- const int dx = quads[i]->input.x0 - ix;
- unsigned mask = 0;
-
- /* compute depth for this quad */
- idepth[0] = init_idepth[0] + dx * depth_step;
- idepth[1] = init_idepth[1] + dx * depth_step;
- idepth[2] = init_idepth[2] + dx * depth_step;
- idepth[3] = init_idepth[3] + dx * depth_step;
-
- depth16 = (ushort (*)[TILE_SIZE])
- &tile->data.depth16[iy % TILE_SIZE][(ix + dx)% TILE_SIZE];
- if ((outmask & 1) && idepth[0] <= depth16[0][0]) {
- depth16[0][0] = idepth[0];
- mask |= (1 << 0);
- }
-
- if ((outmask & 2) && idepth[1] <= depth16[0][1]) {
- depth16[0][1] = idepth[1];
- mask |= (1 << 1);
- }
+#define NAME depth_interp_z16_less_write
+#define OPERATOR <
+#include "sp_quad_depth_test_tmp.h"
- if ((outmask & 4) && idepth[2] <= depth16[1][0]) {
- depth16[1][0] = idepth[2];
- mask |= (1 << 2);
- }
+#define NAME depth_interp_z16_equal_write
+#define OPERATOR ==
+#include "sp_quad_depth_test_tmp.h"
- if ((outmask & 8) && idepth[3] <= depth16[1][1]) {
- depth16[1][1] = idepth[3];
- mask |= (1 << 3);
- }
+#define NAME depth_interp_z16_lequal_write
+#define OPERATOR <=
+#include "sp_quad_depth_test_tmp.h"
- depth16 = (ushort (*)[TILE_SIZE]) &depth16[0][2];
+#define NAME depth_interp_z16_greater_write
+#define OPERATOR >
+#include "sp_quad_depth_test_tmp.h"
- quads[i]->inout.mask = mask;
- if (quads[i]->inout.mask)
- quads[pass++] = quads[i];
- }
-
- if (pass)
- qs->next->run(qs->next, quads, pass);
-
-}
+#define NAME depth_interp_z16_notequal_write
+#define OPERATOR !=
+#include "sp_quad_depth_test_tmp.h"
+#define NAME depth_interp_z16_gequal_write
+#define OPERATOR >=
+#include "sp_quad_depth_test_tmp.h"
+#define NAME depth_interp_z16_always_write
+#define ALWAYS 1
+#include "sp_quad_depth_test_tmp.h"
boolean occlusion = qs->softpipe->active_query_count;
+ /* default */
+ qs->run = depth_test_quads_fallback;
+
+ /* look for special cases */
if (!alpha &&
!depth &&
!stencil) {
!occlusion &&
!stencil)
{
- switch (depthfunc) {
- case PIPE_FUNC_LESS:
- switch (qs->softpipe->framebuffer.zsbuf->format) {
- case PIPE_FORMAT_Z16_UNORM:
+ if (qs->softpipe->framebuffer.zsbuf->format == PIPE_FORMAT_Z16_UNORM) {
+ switch (depthfunc) {
+ case PIPE_FUNC_NEVER:
+ qs->run = depth_test_quads_fallback;
+ break;
+ case PIPE_FUNC_LESS:
qs->run = depth_interp_z16_less_write;
break;
- default:
- qs->run = depth_test_quads_fallback;
+ case PIPE_FUNC_EQUAL:
+ qs->run = depth_interp_z16_equal_write;
break;
- }
- break;
- case PIPE_FUNC_LEQUAL:
- switch (qs->softpipe->framebuffer.zsbuf->format) {
- case PIPE_FORMAT_Z16_UNORM:
+ case PIPE_FUNC_LEQUAL:
qs->run = depth_interp_z16_lequal_write;
break;
+ case PIPE_FUNC_GREATER:
+ qs->run = depth_interp_z16_greater_write;
+ break;
+ case PIPE_FUNC_NOTEQUAL:
+ qs->run = depth_interp_z16_notequal_write;
+ break;
+ case PIPE_FUNC_GEQUAL:
+ qs->run = depth_interp_z16_gequal_write;
+ break;
+ case PIPE_FUNC_ALWAYS:
+ qs->run = depth_interp_z16_always_write;
+ break;
default:
qs->run = depth_test_quads_fallback;
break;
}
- break;
- default:
- qs->run = depth_test_quads_fallback;
}
}
- else {
- qs->run = depth_test_quads_fallback;
- }
-
+ /* next quad/fragment stage */
qs->run( qs, quads, nr );
}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2010 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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 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.
+ *
+ **************************************************************************/
+
+
+/*
+ * Template for generating Z test functions
+ * Only PIPE_FORMAT_Z16_UNORM supported at this time.
+ */
+
+
+#ifndef NAME
+#error "NAME is not defined!"
+#endif
+
+#if !defined(OPERATOR) && !defined(ALWAYS)
+#error "neither OPERATOR nor ALWAYS is defined!"
+#endif
+
+
+/*
+ * NOTE: there's no guarantee that the quads are sequentially side by
+ * side. The fragment shader may have culled some quads, etc. Sliver
+ * triangles may generate non-sequential quads.
+ */
+static void
+NAME(struct quad_stage *qs,
+ struct quad_header *quads[],
+ unsigned nr)
+{
+ unsigned i, pass = 0;
+ const unsigned ix = quads[0]->input.x0;
+ const unsigned iy = quads[0]->input.y0;
+ const float fx = (float) ix;
+ const float fy = (float) iy;
+ const float dzdx = quads[0]->posCoef->dadx[2];
+ const float dzdy = quads[0]->posCoef->dady[2];
+ const float z0 = quads[0]->posCoef->a0[2] + dzdx * fx + dzdy * fy;
+ struct softpipe_cached_tile *tile;
+ ushort (*depth16)[TILE_SIZE];
+ ushort init_idepth[4], idepth[4], depth_step;
+ const float scale = 65535.0;
+
+ /* compute scaled depth of the four pixels in first quad */
+ init_idepth[0] = (ushort)((z0) * scale);
+ init_idepth[1] = (ushort)((z0 + dzdx) * scale);
+ init_idepth[2] = (ushort)((z0 + dzdy) * scale);
+ init_idepth[3] = (ushort)((z0 + dzdx + dzdy) * scale);
+
+ depth_step = (ushort)(dzdx * scale);
+
+ tile = sp_get_cached_tile(qs->softpipe->zsbuf_cache, ix, iy);
+
+ for (i = 0; i < nr; i++) {
+ const unsigned outmask = quads[i]->inout.mask;
+ const int dx = quads[i]->input.x0 - ix;
+ unsigned mask = 0;
+
+ /* compute depth for this quad */
+ idepth[0] = init_idepth[0] + dx * depth_step;
+ idepth[1] = init_idepth[1] + dx * depth_step;
+ idepth[2] = init_idepth[2] + dx * depth_step;
+ idepth[3] = init_idepth[3] + dx * depth_step;
+
+ depth16 = (ushort (*)[TILE_SIZE])
+ &tile->data.depth16[iy % TILE_SIZE][(ix + dx)% TILE_SIZE];
+
+#ifdef ALWAYS
+ if (outmask & 1) {
+ depth16[0][0] = idepth[0];
+ mask |= (1 << 0);
+ }
+
+ if (outmask & 2) {
+ depth16[0][1] = idepth[1];
+ mask |= (1 << 1);
+ }
+
+ if (outmask & 4) {
+ depth16[1][0] = idepth[2];
+ mask |= (1 << 2);
+ }
+
+ if (outmask & 8) {
+ depth16[1][1] = idepth[3];
+ mask |= (1 << 3);
+ }
+#else
+ /* Note: OPERATOR appears here: */
+ if ((outmask & 1) && (idepth[0] OPERATOR depth16[0][0])) {
+ depth16[0][0] = idepth[0];
+ mask |= (1 << 0);
+ }
+
+ if ((outmask & 2) && (idepth[1] OPERATOR depth16[0][1])) {
+ depth16[0][1] = idepth[1];
+ mask |= (1 << 1);
+ }
+
+ if ((outmask & 4) && (idepth[2] OPERATOR depth16[1][0])) {
+ depth16[1][0] = idepth[2];
+ mask |= (1 << 2);
+ }
+
+ if ((outmask & 8) && (idepth[3] OPERATOR depth16[1][1])) {
+ depth16[1][1] = idepth[3];
+ mask |= (1 << 3);
+ }
+#endif
+
+ depth16 = (ushort (*)[TILE_SIZE]) &depth16[0][2];
+
+ quads[i]->inout.mask = mask;
+ if (quads[i]->inout.mask)
+ quads[pass++] = quads[i];
+ }
+
+ if (pass)
+ qs->next->run(qs->next, quads, pass);
+}
+
+
+#undef NAME
+#undef OPERATOR
+#undef ALWAYS
projects / mesa.git / commitdiff