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return true if one of the vertices has been clipped

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This commit is contained in:
Zack Rusin
2008-04-11 19:58:22 -04:00
committed by Keith Whitwell
parent aadbb1d7fb
commit 808f968f3a
4 changed files with 25 additions and 15 deletions
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2
src/gallium/auxiliary/draw/draw_private.h
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@@ -148,7 +148,7 @@ struct draw_vertex_shader {
/* Run the shader - this interface will get cleaned up in the /* Run the shader - this interface will get cleaned up in the
* future: * future:
*/ */
void (*run)( struct draw_vertex_shader *shader, boolean (*run)( struct draw_vertex_shader *shader,
struct draw_context *draw, struct draw_context *draw,
const unsigned *elts, const unsigned *elts,
unsigned count, unsigned count,

5
src/gallium/auxiliary/draw/draw_vs_exec.c
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@@ -64,7 +64,7 @@ vs_exec_prepare( struct draw_vertex_shader *shader,
* \param count number of vertices to shade [1..4] * \param count number of vertices to shade [1..4]
* \param vOut array of pointers to four output vertices * \param vOut array of pointers to four output vertices
*/ */
static void static boolean
vs_exec_run( struct draw_vertex_shader *shader, vs_exec_run( struct draw_vertex_shader *shader,
struct draw_context *draw, struct draw_context *draw,
const unsigned *elts, const unsigned *elts,
@@ -73,6 +73,7 @@ vs_exec_run( struct draw_vertex_shader *shader,
{ {
struct tgsi_exec_machine *machine = &draw->machine; struct tgsi_exec_machine *machine = &draw->machine;
unsigned int i, j; unsigned int i, j;
unsigned int clipped = 0;
ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_MAX_ATTRIBS); ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_MAX_ATTRIBS);
ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_MAX_ATTRIBS); ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_MAX_ATTRIBS);
@@ -120,6 +121,7 @@ vs_exec_run( struct draw_vertex_shader *shader,
if (!draw->rasterizer->bypass_clipping) { if (!draw->rasterizer->bypass_clipping) {
vOut[i + j]->clipmask = compute_clipmask(vOut[i + j]->clip, draw->plane, vOut[i + j]->clipmask = compute_clipmask(vOut[i + j]->clip, draw->plane,
draw->nr_planes); draw->nr_planes);
clipped += vOut[i + j]->clipmask;
/* divide by w */ /* divide by w */
w = 1.0f / w; w = 1.0f / w;
@@ -168,6 +170,7 @@ vs_exec_run( struct draw_vertex_shader *shader,
#endif #endif
} /* loop over vertices */ } /* loop over vertices */
} }
return clipped != 0;
} }

8
src/gallium/auxiliary/draw/draw_vs_llvm.c
View File

@@ -67,7 +67,7 @@ vs_llvm_prepare( struct draw_vertex_shader *base,
* \param count number of vertices to shade [1..4] * \param count number of vertices to shade [1..4]
* \param vOut array of pointers to four output vertices * \param vOut array of pointers to four output vertices
*/ */
static void static boolean
vs_llvm_run( struct draw_vertex_shader *base, vs_llvm_run( struct draw_vertex_shader *base,
struct draw_context *draw, struct draw_context *draw,
const unsigned *elts, const unsigned *elts,
@@ -79,6 +79,7 @@ vs_llvm_run( struct draw_vertex_shader *base,
struct tgsi_exec_machine *machine = &draw->machine; struct tgsi_exec_machine *machine = &draw->machine;
unsigned int j; unsigned int j;
unsigned int clipped = 0;
ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_MAX_ATTRIBS); ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_MAX_ATTRIBS);
ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_MAX_ATTRIBS); ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_MAX_ATTRIBS);
@@ -125,7 +126,9 @@ vs_llvm_run( struct draw_vertex_shader *base,
w = vOut[j]->clip[3] = machine->Outputs[0].xyzw[3].f[j]; w = vOut[j]->clip[3] = machine->Outputs[0].xyzw[3].f[j];
if (!draw->rasterizer->bypass_clipping) { if (!draw->rasterizer->bypass_clipping) {
vOut[j]->clipmask = compute_clipmask(vOut[j]->clip, draw->plane, draw->nr_planes); vOut[j]->clipmask = compute_clipmask(vOut[j]->clip, draw->plane,
draw->nr_planes);
clipped += vOut[j]->clipmask;
/* divide by w */ /* divide by w */
w = 1.0f / w; w = 1.0f / w;
@@ -162,6 +165,7 @@ vs_llvm_run( struct draw_vertex_shader *base,
vOut[j]->data[slot][3] = machine->Outputs[slot].xyzw[3].f[j]; vOut[j]->data[slot][3] = machine->Outputs[slot].xyzw[3].f[j];
} }
} /* loop over vertices */ } /* loop over vertices */
return clipped != 0;
} }
static void static void

5
src/gallium/auxiliary/draw/draw_vs_sse.c
View File

@@ -78,7 +78,7 @@ vs_sse_prepare( struct draw_vertex_shader *base,
* \param count number of vertices to shade [1..4] * \param count number of vertices to shade [1..4]
* \param vOut array of pointers to four output vertices * \param vOut array of pointers to four output vertices
*/ */
static void static boolean
vs_sse_run( struct draw_vertex_shader *base, vs_sse_run( struct draw_vertex_shader *base,
struct draw_context *draw, struct draw_context *draw,
const unsigned *elts, const unsigned *elts,
@@ -88,6 +88,7 @@ vs_sse_run( struct draw_vertex_shader *base,
struct draw_sse_vertex_shader *shader = (struct draw_sse_vertex_shader *)base; struct draw_sse_vertex_shader *shader = (struct draw_sse_vertex_shader *)base;
struct tgsi_exec_machine *machine = &draw->machine; struct tgsi_exec_machine *machine = &draw->machine;
unsigned int i, j; unsigned int i, j;
unsigned int clipped = 0;
ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_MAX_ATTRIBS); ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_MAX_ATTRIBS);
ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_MAX_ATTRIBS); ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_MAX_ATTRIBS);
@@ -143,6 +144,7 @@ vs_sse_run( struct draw_vertex_shader *base,
if (!draw->rasterizer->bypass_clipping) { if (!draw->rasterizer->bypass_clipping) {
vOut[i + j]->clipmask = compute_clipmask(vOut[i + j]->clip, draw->plane, vOut[i + j]->clipmask = compute_clipmask(vOut[i + j]->clip, draw->plane,
draw->nr_planes); draw->nr_planes);
clipped += vOut[i + j]->clipmask;
/* divide by w */ /* divide by w */
w = 1.0f / w; w = 1.0f / w;
@@ -180,6 +182,7 @@ vs_sse_run( struct draw_vertex_shader *base,
} }
} }
} }
return clipped != 0;
} }