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-rw-r--r--src/mesa/pipe/softpipe/sp_context.c11
-rw-r--r--src/mesa/pipe/softpipe/sp_context.h3
-rw-r--r--src/mesa/pipe/softpipe/sp_quad.c7
-rw-r--r--src/mesa/pipe/softpipe/sp_quad.h1
-rw-r--r--src/mesa/pipe/softpipe/sp_quad_stencil.c134
-rw-r--r--src/mesa/pipe/softpipe/sp_state.h23
-rw-r--r--src/mesa/pipe/softpipe/sp_state_blend.c11
7 files changed, 174 insertions, 16 deletions
diff --git a/src/mesa/pipe/softpipe/sp_context.c b/src/mesa/pipe/softpipe/sp_context.c
index 9becab4918d..6afc0c1320f 100644
--- a/src/mesa/pipe/softpipe/sp_context.c
+++ b/src/mesa/pipe/softpipe/sp_context.c
@@ -65,20 +65,21 @@ struct pipe_context *softpipe_create( void )
struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
softpipe->pipe.destroy = softpipe_destroy;
- softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
softpipe->pipe.set_alpha_test_state = softpipe_set_alpha_test_state;
- softpipe->pipe.set_blend_state = softpipe_set_blend_state;
softpipe->pipe.set_blend_color = softpipe_set_blend_color;
+ softpipe->pipe.set_blend_state = softpipe_set_blend_state;
softpipe->pipe.set_clip_state = softpipe_set_clip_state;
softpipe->pipe.set_clear_color_state = softpipe_set_clear_color_state;
softpipe->pipe.set_depth_state = softpipe_set_depth_test_state;
- softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
- softpipe->pipe.set_setup_state = softpipe_set_setup_state;
- softpipe->pipe.set_scissor_state = softpipe_set_scissor_state;
+ softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
softpipe->pipe.set_fs_state = softpipe_set_fs_state;
softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple;
softpipe->pipe.set_sampler_state = softpipe_set_sampler_state;
+ softpipe->pipe.set_scissor_state = softpipe_set_scissor_state;
+ softpipe->pipe.set_setup_state = softpipe_set_setup_state;
+ softpipe->pipe.set_stencil_state = softpipe_set_stencil_state;
softpipe->pipe.set_texture_state = softpipe_set_texture_state;
+ softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
softpipe->pipe.draw_vb = softpipe_draw_vb;
softpipe->pipe.clear = softpipe_clear;
diff --git a/src/mesa/pipe/softpipe/sp_context.h b/src/mesa/pipe/softpipe/sp_context.h
index c6046624a19..2379a99b81f 100644
--- a/src/mesa/pipe/softpipe/sp_context.h
+++ b/src/mesa/pipe/softpipe/sp_context.h
@@ -63,6 +63,7 @@ enum interp_mode {
#define SP_NEW_DEPTH_TEST 0x200
#define SP_NEW_SAMPLER 0x400
#define SP_NEW_TEXTURE 0x800
+#define SP_NEW_STENCIL 0x1000
struct softpipe_context {
@@ -82,6 +83,7 @@ struct softpipe_context {
struct pipe_scissor_state scissor;
struct pipe_sampler_state sampler[PIPE_MAX_SAMPLERS];
struct pipe_setup_state setup;
+ struct pipe_stencil_state stencil;
struct pipe_texture_object *texture[PIPE_MAX_SAMPLERS];
struct pipe_viewport_state viewport;
GLuint dirty;
@@ -117,6 +119,7 @@ struct softpipe_context {
struct {
struct quad_stage *shade;
struct quad_stage *alpha_test;
+ struct quad_stage *stencil_test;
struct quad_stage *depth_test;
struct quad_stage *blend;
struct quad_stage *output;
diff --git a/src/mesa/pipe/softpipe/sp_quad.c b/src/mesa/pipe/softpipe/sp_quad.c
index 63126a4da38..31278f529d7 100644
--- a/src/mesa/pipe/softpipe/sp_quad.c
+++ b/src/mesa/pipe/softpipe/sp_quad.c
@@ -16,7 +16,12 @@ sp_build_quad_pipeline(struct softpipe_context *sp)
sp->quad.first = sp->quad.blend;
}
- if (sp->depth_test.enabled) {
+ if ( sp->stencil.front_enabled
+ || sp->stencil.front_enabled) {
+ sp->quad.stencil_test->next = sp->quad.first;
+ sp->quad.first = sp->quad.stencil_test;
+ }
+ else if (sp->depth_test.enabled) {
sp->quad.depth_test->next = sp->quad.first;
sp->quad.first = sp->quad.depth_test;
}
diff --git a/src/mesa/pipe/softpipe/sp_quad.h b/src/mesa/pipe/softpipe/sp_quad.h
index 79f52721a3f..c09905c2498 100644
--- a/src/mesa/pipe/softpipe/sp_quad.h
+++ b/src/mesa/pipe/softpipe/sp_quad.h
@@ -48,6 +48,7 @@ struct quad_stage {
struct quad_stage *sp_quad_shade_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_alpha_test_stage( struct softpipe_context *softpipe );
+struct quad_stage *sp_quad_stencil_test_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_depth_test_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_blend_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_output_stage( struct softpipe_context *softpipe );
diff --git a/src/mesa/pipe/softpipe/sp_quad_stencil.c b/src/mesa/pipe/softpipe/sp_quad_stencil.c
new file mode 100644
index 00000000000..9f59d09906c
--- /dev/null
+++ b/src/mesa/pipe/softpipe/sp_quad_stencil.c
@@ -0,0 +1,134 @@
+
+/**
+ * \brief Quad stencil testing
+ */
+
+
+#include "main/glheader.h"
+#include "main/imports.h"
+#include "sp_context.h"
+#include "sp_headers.h"
+#include "sp_surface.h"
+#include "sp_quad.h"
+#include "pipe/p_defines.h"
+
+
+static void
+stencil_test_quad(struct quad_stage *qs, struct quad_header *quad)
+{
+ struct softpipe_context *softpipe = qs->softpipe;
+ struct softpipe_surface *sps = softpipe_surface(softpipe->framebuffer.zbuf);
+ GLuint bzzzz[QUAD_SIZE]; /**< Z values fetched from depth buffer */
+ GLuint qzzzz[QUAD_SIZE]; /**< Z values from the quad */
+ GLuint zmask = 0;
+ GLuint j;
+ GLfloat scale;
+
+ assert(sps); /* shouldn't get here if there's no zbuffer */
+
+ /*
+ * 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...
+ */
+ if (sps->surface.format == PIPE_FORMAT_U_Z16)
+ scale = 65535.0;
+ else
+ assert(0); /* XXX fix this someday */
+
+ /*
+ * Convert quad's float depth values to int depth values.
+ * If the Z buffer stores integer values, we _have_ to do the depth
+ * compares with integers (not floats). Otherwise, the float->int->float
+ * conversion of Z values (which isn't an identity function) will cause
+ * Z-fighting errors.
+ */
+ for (j = 0; j < QUAD_SIZE; j++) {
+ qzzzz[j] = (GLuint) (quad->outputs.depth[j] * scale);
+ }
+
+ /* get zquad from zbuffer */
+ sps->read_quad_z(sps, quad->x0, quad->y0, bzzzz);
+
+ switch (softpipe->depth_test.func) {
+ case PIPE_FUNC_NEVER:
+ /* zmask = 0 */
+ break;
+ case PIPE_FUNC_LESS:
+ /* Note this is pretty much a single sse or cell instruction.
+ * Like this: quad->mask &= (quad->outputs.depth < zzzz);
+ */
+ for (j = 0; j < QUAD_SIZE; j++) {
+ if (qzzzz[j] < bzzzz[j])
+ zmask |= 1 << j;
+ }
+ break;
+ case PIPE_FUNC_EQUAL:
+ for (j = 0; j < QUAD_SIZE; j++) {
+ if (qzzzz[j] == bzzzz[j])
+ zmask |= 1 << j;
+ }
+ break;
+ case PIPE_FUNC_LEQUAL:
+ for (j = 0; j < QUAD_SIZE; j++) {
+ if (qzzzz[j] <= bzzzz[j])
+ zmask |= (1 << j);
+ }
+ break;
+ case PIPE_FUNC_GREATER:
+ for (j = 0; j < QUAD_SIZE; j++) {
+ if (qzzzz[j] > bzzzz[j])
+ zmask |= (1 << j);
+ }
+ break;
+ case PIPE_FUNC_NOTEQUAL:
+ for (j = 0; j < QUAD_SIZE; j++) {
+ if (qzzzz[j] != bzzzz[j])
+ zmask |= (1 << j);
+ }
+ break;
+ case PIPE_FUNC_GEQUAL:
+ for (j = 0; j < QUAD_SIZE; j++) {
+ if (qzzzz[j] >= bzzzz[j])
+ zmask |= (1 << j);
+ }
+ break;
+ case PIPE_FUNC_ALWAYS:
+ zmask = MASK_ALL;
+ break;
+ default:
+ abort();
+ }
+
+ quad->mask &= zmask;
+
+ if (softpipe->depth_test.writemask) {
+
+ /* This is also efficient with sse / spe instructions:
+ */
+ for (j = 0; j < QUAD_SIZE; j++) {
+ if (quad->mask & (1 << j)) {
+ bzzzz[j] = qzzzz[j];
+ }
+ }
+
+ /* write updated zquad to zbuffer */
+ sps->write_quad_z(sps, quad->x0, quad->y0, bzzzz);
+ }
+
+ if (quad->mask)
+ qs->next->run(qs->next, quad);
+}
+
+
+
+
+struct quad_stage *sp_quad_stencil_test_stage( struct softpipe_context *softpipe )
+{
+ struct quad_stage *stage = CALLOC_STRUCT(quad_stage);
+
+ stage->softpipe = softpipe;
+ stage->run = stencil_test_quad;
+
+ return stage;
+}
diff --git a/src/mesa/pipe/softpipe/sp_state.h b/src/mesa/pipe/softpipe/sp_state.h
index 38a212b79ad..71c1a2d9ba0 100644
--- a/src/mesa/pipe/softpipe/sp_state.h
+++ b/src/mesa/pipe/softpipe/sp_state.h
@@ -56,8 +56,14 @@ void softpipe_set_clip_state( struct pipe_context *,
void softpipe_set_depth_test_state( struct pipe_context *,
const struct pipe_depth_state * );
-void softpipe_set_viewport_state( struct pipe_context *,
- const struct pipe_viewport_state * );
+void softpipe_set_fs_state( struct pipe_context *,
+ const struct pipe_fs_state * );
+
+void softpipe_set_polygon_stipple( struct pipe_context *,
+ const struct pipe_poly_stipple * );
+
+void softpipe_set_scissor_state( struct pipe_context *,
+ const struct pipe_scissor_state * );
void softpipe_set_setup_state( struct pipe_context *,
const struct pipe_setup_state * );
@@ -66,18 +72,15 @@ void softpipe_set_sampler_state( struct pipe_context *,
GLuint unit,
const struct pipe_sampler_state * );
+void softpipe_set_stencil_state( struct pipe_context *,
+ const struct pipe_stencil_state * );
+
void softpipe_set_texture_state( struct pipe_context *,
GLuint unit,
struct pipe_texture_object * );
-void softpipe_set_scissor_state( struct pipe_context *,
- const struct pipe_scissor_state * );
-
-void softpipe_set_fs_state( struct pipe_context *,
- const struct pipe_fs_state * );
-
-void softpipe_set_polygon_stipple( struct pipe_context *,
- const struct pipe_poly_stipple * );
+void softpipe_set_viewport_state( struct pipe_context *,
+ const struct pipe_viewport_state * );
void softpipe_update_derived( struct softpipe_context *softpipe );
diff --git a/src/mesa/pipe/softpipe/sp_state_blend.c b/src/mesa/pipe/softpipe/sp_state_blend.c
index ae8950e386e..8bc22b0efc0 100644
--- a/src/mesa/pipe/softpipe/sp_state_blend.c
+++ b/src/mesa/pipe/softpipe/sp_state_blend.c
@@ -80,3 +80,14 @@ softpipe_set_alpha_test_state(struct pipe_context *pipe,
softpipe->dirty |= SP_NEW_ALPHA_TEST;
}
+void
+softpipe_set_stencil_state(struct pipe_context *pipe,
+ const struct pipe_stencil_state *stencil)
+{
+ struct softpipe_context *softpipe = softpipe_context(pipe);
+
+ softpipe->stencil = *stencil;
+
+ softpipe->dirty |= SP_NEW_STENCIL;
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 21:57:46 +0000