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-rw-r--r--mesalib/src/mesa/tnl/NOTES102
-rw-r--r--mesalib/src/mesa/tnl/t_context.c2
-rw-r--r--mesalib/src/mesa/tnl/t_context.h4
-rw-r--r--mesalib/src/mesa/tnl/t_draw.c58
-rw-r--r--mesalib/src/mesa/tnl/t_rasterpos.c25
-rw-r--r--mesalib/src/mesa/tnl/t_vb_program.c16
-rw-r--r--mesalib/src/mesa/tnl/t_vb_vertex.c24
7 files changed, 94 insertions, 137 deletions
diff --git a/mesalib/src/mesa/tnl/NOTES b/mesalib/src/mesa/tnl/NOTES
deleted file mode 100644
index c39b43485..000000000
--- a/mesalib/src/mesa/tnl/NOTES
+++ /dev/null
@@ -1,102 +0,0 @@
-INTRODUCTION
-
-A generic, configurable software implementation of GL transformation &
-lighting.
-
-This module provides an implementation of the routines required by the
-'vtxfmt' mechanism of core mesa for tnl functionality in all
-combinations of compile and execute modes.
-
-Most current drivers use the tnl module exclusively to provide this
-functionality, though there is an experimental alternate
-implementation provided by the tnl_dd/t_dd_imm_* files which can
-handle a small subset of GL states in execute mode only.
-
-
-STATE
-
-To create and destroy the module:
-
- GLboolean _tnl_CreateContext( GLcontext *ctx );
- void _tnl_DestroyContext( GLcontext *ctx );
-
-The module is not active by default, and must be installed by calling
-_tnl_Wakeup(). This function installs internal tnl functions into all
-the vtxfmt dispatch hooks, thus taking over the task of transformation
-and lighting entirely:
-
- void _tnl_wakeup_exec( GLcontext *ctx );
- void _tnl_wakeup_save_exec( GLcontext *ctx );
-
-
-This module tracks state changes internally and maintains derived
-values based on the current state. For this to work, the driver
-ensure the following funciton is called whenever the state changes and
-the swsetup module is 'awake':
-
- void _tnl_InvalidateState( GLcontext *ctx, GLuint new_state );
-
-There is no explicit call to put the tnl module to sleep. Simply
-install other function pointers into all the vtxfmt dispatch slots,
-and (optionally) cease calling _tnl_InvalidateState().
-
-CUSTOMIZATION
-
-The module provides customizability through several mechanisms. The
-most important is by allowing drivers to specify the pipeline through
-which vertex data is passed, including its eventual transfer to
-rasterization hardware (or software).
-
-The default pipeline is specified in t_pipeline.c, and is usually a
-starting point for driver pipelines. Some drivers will remove a stage
-where hardware provides support for the implemented operation (for
-instance fog where per-pixel hardware fog is available, as in the dri
-tdfx driver), or add stages to shortcircuit latter operations (for
-example taking advantage of hardware support for strips and other
-higher-level primitives (for example the radeon driver).
-
-In addition, the following functions provide further tweaks:
-
-extern void
-_tnl_need_projected_coords( GLcontext *ctx, GLboolean flag );
-
- - Direct the default vertex transformation stage to
- produce/not produce projected clip coordinates.
-
-extern void
-_tnl_need_dlist_loopback( GLcontext *ctx, GLboolean flag );
-
- - Direct the display list component of the tnl module to
- replay display lists as 'glVertex' type calls, rather than
- passing the display list data directly into the tnl pipeline
- mechanism.
-
- This allows display lists to be replayed by the tnl module
- even when the module is not strictly active.
-
-
-extern void
-_tnl_need_dlist_norm_lengths( GLcontext *ctx, GLboolean flag );
-
- - Direct the display list component to enable/disable caching
- 1/length values for display list normals. Doing so is
- ususally helpful when lighting is performed in software, but
- wasteful otherwise.
-
-
-DRIVER INTERFACE
-
-The module itself offers a minimal driver interface:
-
- void (*RunPipeline)( GLcontext *ctx );
-
-Normally this is set to _tnl_RunPipeline(), however the driver can use
-this hook to wrap checks or other code around this call.
-
-In addition, the driver interface for the default render pipeline
-stage is housed in the tnl context struct (this could be cleaner).
-
-
-RENDER DRIVER INTERFACE
-
-See t_context.h for the definition and explanation of this. \ No newline at end of file
diff --git a/mesalib/src/mesa/tnl/t_context.c b/mesalib/src/mesa/tnl/t_context.c
index f2771cde0..db21b4589 100644
--- a/mesalib/src/mesa/tnl/t_context.c
+++ b/mesalib/src/mesa/tnl/t_context.c
@@ -171,7 +171,7 @@ _tnl_InvalidateState( GLcontext *ctx, GLuint new_state )
if (vp) {
GLuint i;
for (i = 0; i < MAX_VARYING; i++) {
- if (vp->Base.OutputsWritten & (1 << (VERT_RESULT_VAR0 + i))) {
+ if (vp->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_VAR0 + i)) {
RENDERINPUTS_SET(tnl->render_inputs_bitset,
_TNL_ATTRIB_GENERIC(i));
}
diff --git a/mesalib/src/mesa/tnl/t_context.h b/mesalib/src/mesa/tnl/t_context.h
index c19eb3df3..6137c2d2f 100644
--- a/mesalib/src/mesa/tnl/t_context.h
+++ b/mesalib/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/mesalib/src/mesa/tnl/t_draw.c b/mesalib/src/mesa/tnl/t_draw.c
index c64c2c207..04fa10630 100644
--- a/mesalib/src/mesa/tnl/t_draw.c
+++ b/mesalib/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/mesalib/src/mesa/tnl/t_rasterpos.c b/mesalib/src/mesa/tnl/t_rasterpos.c
index f1fdddf0f..99b678745 100644
--- a/mesalib/src/mesa/tnl/t_rasterpos.c
+++ b/mesalib/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/mesalib/src/mesa/tnl/t_vb_program.c b/mesalib/src/mesa/tnl/t_vb_program.c
index dc954bcba..e69f7d576 100644
--- a/mesalib/src/mesa/tnl/t_vb_program.c
+++ b/mesalib/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) {
@@ -325,7 +329,7 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
/* make list of outputs to save some time below */
numOutputs = 0;
for (i = 0; i < VERT_RESULT_MAX; i++) {
- if (program->Base.OutputsWritten & (1 << i)) {
+ if (program->Base.OutputsWritten & BITFIELD64_BIT(i)) {
outputs[numOutputs++] = i;
}
}
@@ -403,14 +407,14 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
/* Fixup fog and point size results if needed */
if (program->IsNVProgram) {
if (ctx->Fog.Enabled &&
- (program->Base.OutputsWritten & (1 << VERT_RESULT_FOGC)) == 0) {
+ (program->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_FOGC)) == 0) {
for (i = 0; i < VB->Count; i++) {
store->results[VERT_RESULT_FOGC].data[i][0] = 1.0;
}
}
if (ctx->VertexProgram.PointSizeEnabled &&
- (program->Base.OutputsWritten & (1 << VERT_RESULT_PSIZ)) == 0) {
+ (program->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_PSIZ)) == 0) {
for (i = 0; i < VB->Count; i++) {
store->results[VERT_RESULT_PSIZ].data[i][0] = ctx->Point.Size;
}
@@ -468,7 +472,7 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
}
for (i = 0; i < ctx->Const.MaxVarying; i++) {
- if (program->Base.OutputsWritten & (1 << (VERT_RESULT_VAR0 + i))) {
+ if (program->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_VAR0 + i)) {
/* Note: varying results get put into the generic attributes */
VB->AttribPtr[VERT_ATTRIB_GENERIC0+i]
= &store->results[VERT_RESULT_VAR0 + i];
diff --git a/mesalib/src/mesa/tnl/t_vb_vertex.c b/mesalib/src/mesa/tnl/t_vb_vertex.c
index 30aa7c408..4734754ea 100644
--- a/mesalib/src/mesa/tnl/t_vb_vertex.c
+++ b/mesalib/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)