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-rw-r--r--src/mesa/tnl/t_context.h4
-rw-r--r--src/mesa/tnl/t_draw.c58
-rw-r--r--src/mesa/tnl/t_rasterpos.c25
-rw-r--r--src/mesa/tnl/t_vb_program.c8
-rw-r--r--src/mesa/tnl/t_vb_vertex.c24
5 files changed, 89 insertions, 30 deletions
diff --git a/src/mesa/tnl/t_context.h b/src/mesa/tnl/t_context.h
index c19eb3df3c..6137c2d2fe 100644
--- a/src/mesa/tnl/t_context.h
+++ b/src/mesa/tnl/t_context.h
@@ -548,4 +548,8 @@ typedef struct
#define MAX_TYPES TYPE_IDX(GL_DOUBLE)+1 /* 0xa + 1 */
+extern void
+tnl_clip_prepare(GLcontext *ctx);
+
+
#endif
diff --git a/src/mesa/tnl/t_draw.c b/src/mesa/tnl/t_draw.c
index c64c2c2077..04fa106300 100644
--- a/src/mesa/tnl/t_draw.c
+++ b/src/mesa/tnl/t_draw.c
@@ -316,22 +316,27 @@ static void bind_indices( GLcontext *ctx,
ptr = ADD_POINTERS(ib->obj->Pointer, ib->ptr);
- if (ib->type == GL_UNSIGNED_INT) {
+ if (ib->type == GL_UNSIGNED_INT && VB->Primitive[0].basevertex == 0) {
VB->Elts = (GLuint *) ptr;
}
else {
GLuint *elts = (GLuint *)get_space(ctx, ib->count * sizeof(GLuint));
VB->Elts = elts;
- if (ib->type == GL_UNSIGNED_SHORT) {
+ if (ib->type == GL_UNSIGNED_INT) {
+ const GLuint *in = (GLuint *)ptr;
+ for (i = 0; i < ib->count; i++)
+ *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
+ }
+ else if (ib->type == GL_UNSIGNED_SHORT) {
const GLushort *in = (GLushort *)ptr;
for (i = 0; i < ib->count; i++)
- *elts++ = (GLuint)(*in++);
+ *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
}
else {
const GLubyte *in = (GLubyte *)ptr;
for (i = 0; i < ib->count; i++)
- *elts++ = (GLuint)(*in++);
+ *elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
}
}
}
@@ -390,10 +395,14 @@ void _tnl_draw_prims( GLcontext *ctx,
TNLcontext *tnl = TNL_CONTEXT(ctx);
const GLuint TEST_SPLIT = 0;
const GLint max = TEST_SPLIT ? 8 : tnl->vb.Size - MAX_CLIPPED_VERTICES;
+ GLuint max_basevertex = prim->basevertex;
+ GLuint i;
+
+ for (i = 1; i < nr_prims; i++)
+ max_basevertex = MAX2(max_basevertex, prim[i].basevertex);
if (0)
{
- GLuint i;
_mesa_printf("%s %d..%d\n", __FUNCTION__, min_index, max_index);
for (i = 0; i < nr_prims; i++)
_mesa_printf("prim %d: %s start %d count %d\n", i,
@@ -410,7 +419,7 @@ void _tnl_draw_prims( GLcontext *ctx,
_tnl_vbo_draw_prims );
return;
}
- else if (max_index > max) {
+ else if (max_index + max_basevertex > max) {
/* The software TNL pipeline has a fixed amount of storage for
* vertices and it is necessary to split incoming drawing commands
* if they exceed that limit.
@@ -424,7 +433,7 @@ void _tnl_draw_prims( GLcontext *ctx,
* recursively call back into this function.
*/
vbo_split_prims( ctx, arrays, prim, nr_prims, ib,
- 0, max_index,
+ 0, max_index + prim->basevertex,
_tnl_vbo_draw_prims,
&limits );
}
@@ -435,17 +444,34 @@ void _tnl_draw_prims( GLcontext *ctx,
struct gl_buffer_object *bo[VERT_ATTRIB_MAX + 1];
GLuint nr_bo = 0;
- /* Binding inputs may imply mapping some vertex buffer objects.
- * They will need to be unmapped below.
- */
- bind_inputs(ctx, arrays, max_index+1, bo, &nr_bo);
- bind_indices(ctx, ib, bo, &nr_bo);
- bind_prims(ctx, prim, nr_prims );
+ for (i = 0; i < nr_prims;) {
+ GLuint this_nr_prims;
+
+ /* Our SW TNL pipeline doesn't handle basevertex yet, so bind_indices
+ * will rebase the elements to the basevertex, and we'll only
+ * emit strings of prims with the same basevertex in one draw call.
+ */
+ for (this_nr_prims = 1; i + this_nr_prims < nr_prims;
+ this_nr_prims++) {
+ if (prim[i].basevertex != prim[i + this_nr_prims].basevertex)
+ break;
+ }
+
+ /* Binding inputs may imply mapping some vertex buffer objects.
+ * They will need to be unmapped below.
+ */
+ bind_prims(ctx, &prim[i], this_nr_prims);
+ bind_inputs(ctx, arrays, max_index + prim[i].basevertex + 1,
+ bo, &nr_bo);
+ bind_indices(ctx, ib, bo, &nr_bo);
- TNL_CONTEXT(ctx)->Driver.RunPipeline(ctx);
+ TNL_CONTEXT(ctx)->Driver.RunPipeline(ctx);
- unmap_vbos(ctx, bo, nr_bo);
- free_space(ctx);
+ unmap_vbos(ctx, bo, nr_bo);
+ free_space(ctx);
+
+ i += this_nr_prims;
+ }
}
}
diff --git a/src/mesa/tnl/t_rasterpos.c b/src/mesa/tnl/t_rasterpos.c
index f1fdddf0f5..99b6787455 100644
--- a/src/mesa/tnl/t_rasterpos.c
+++ b/src/mesa/tnl/t_rasterpos.c
@@ -46,11 +46,10 @@
* \return zero if outside view volume, or one if inside.
*/
static GLuint
-viewclip_point( const GLfloat v[] )
+viewclip_point_xy( const GLfloat v[] )
{
if ( v[0] > v[3] || v[0] < -v[3]
- || v[1] > v[3] || v[1] < -v[3]
- || v[2] > v[3] || v[2] < -v[3] ) {
+ || v[1] > v[3] || v[1] < -v[3] ) {
return 0;
}
else {
@@ -408,18 +407,18 @@ _tnl_RasterPos(GLcontext *ctx, const GLfloat vObj[4])
/* apply projection matrix: clip = Proj * eye */
TRANSFORM_POINT( clip, ctx->ProjectionMatrixStack.Top->m, eye );
- /* clip to view volume */
- if (ctx->Transform.RasterPositionUnclipped) {
- /* GL_IBM_rasterpos_clip: only clip against Z */
+ /* clip to view volume. */
+ if (!ctx->Transform.DepthClamp) {
if (viewclip_point_z(clip) == 0) {
ctx->Current.RasterPosValid = GL_FALSE;
return;
}
}
- else if (viewclip_point(clip) == 0) {
- /* Normal OpenGL behaviour */
- ctx->Current.RasterPosValid = GL_FALSE;
- return;
+ if (!ctx->Transform.RasterPositionUnclipped) {
+ if (viewclip_point_xy(clip) == 0) {
+ ctx->Current.RasterPosValid = GL_FALSE;
+ return;
+ }
}
/* clip to user clipping planes */
@@ -443,6 +442,12 @@ _tnl_RasterPos(GLcontext *ctx, const GLfloat vObj[4])
/ ctx->DrawBuffer->_DepthMaxF;
ctx->Current.RasterPos[3] = clip[3];
+ if (ctx->Transform.DepthClamp) {
+ ctx->Current.RasterPos[3] = CLAMP(ctx->Current.RasterPos[3],
+ ctx->Viewport.Near,
+ ctx->Viewport.Far);
+ }
+
/* compute raster distance */
if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT)
ctx->Current.RasterDistance = ctx->Current.Attrib[VERT_ATTRIB_FOG][0];
diff --git a/src/mesa/tnl/t_vb_program.c b/src/mesa/tnl/t_vb_program.c
index dc954bcba1..c10a27614f 100644
--- a/src/mesa/tnl/t_vb_program.c
+++ b/src/mesa/tnl/t_vb_program.c
@@ -131,13 +131,16 @@ do_ndc_cliptest(GLcontext *ctx, struct vp_stage_data *store)
store->ormask = 0;
store->andmask = CLIP_FRUSTUM_BITS;
+ tnl_clip_prepare(ctx);
+
if (tnl->NeedNdcCoords) {
VB->NdcPtr =
_mesa_clip_tab[VB->ClipPtr->size]( VB->ClipPtr,
&store->ndcCoords,
store->clipmask,
&store->ormask,
- &store->andmask );
+ &store->andmask,
+ !ctx->Transform.DepthClamp );
}
else {
VB->NdcPtr = NULL;
@@ -145,7 +148,8 @@ do_ndc_cliptest(GLcontext *ctx, struct vp_stage_data *store)
NULL,
store->clipmask,
&store->ormask,
- &store->andmask );
+ &store->andmask,
+ !ctx->Transform.DepthClamp );
}
if (store->andmask) {
diff --git a/src/mesa/tnl/t_vb_vertex.c b/src/mesa/tnl/t_vb_vertex.c
index 30aa7c4086..4734754ea4 100644
--- a/src/mesa/tnl/t_vb_vertex.c
+++ b/src/mesa/tnl/t_vb_vertex.c
@@ -118,6 +118,22 @@ static void (*(usercliptab[5]))( GLcontext *,
};
+void
+tnl_clip_prepare(GLcontext *ctx)
+{
+ /* Neither the x86 nor sparc asm cliptest functions have been updated
+ * for ARB_depth_clamp, so force the C paths.
+ */
+ if (ctx->Transform.DepthClamp) {
+ static GLboolean c_funcs_installed = GL_FALSE;
+ if (!c_funcs_installed) {
+ init_c_cliptest();
+ c_funcs_installed = GL_TRUE;
+ }
+ }
+}
+
+
static GLboolean run_vertex_stage( GLcontext *ctx,
struct tnl_pipeline_stage *stage )
@@ -129,6 +145,8 @@ static GLboolean run_vertex_stage( GLcontext *ctx,
if (ctx->VertexProgram._Current)
return GL_TRUE;
+ tnl_clip_prepare(ctx);
+
if (ctx->_NeedEyeCoords) {
/* Separate modelview transformation:
* Use combined ModelProject to avoid some depth artifacts
@@ -173,7 +191,8 @@ static GLboolean run_vertex_stage( GLcontext *ctx,
&store->proj,
store->clipmask,
&store->ormask,
- &store->andmask );
+ &store->andmask,
+ !ctx->Transform.DepthClamp );
}
else {
VB->NdcPtr = NULL;
@@ -181,7 +200,8 @@ static GLboolean run_vertex_stage( GLcontext *ctx,
NULL,
store->clipmask,
&store->ormask,
- &store->andmask );
+ &store->andmask,
+ !ctx->Transform.DepthClamp );
}
if (store->andmask)
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-19 12:27:33 +0000