/*
* Mesa 3-D graphics library
- * Version: 6.5
*
* Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
*
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
+ * Keith Whitwell <keithw@vmware.com>
*/
#include "main/glheader.h"
-#include "main/colormac.h"
-#include "main/context.h"
#include "main/macros.h"
#include "main/imports.h"
#include "main/mtypes.h"
#include "math/m_xform.h"
+#include "util/bitscan.h"
+
#include "t_context.h"
#include "t_pipeline.h"
GLvector4f eye;
GLvector4f clip;
GLvector4f proj;
- GLfloat *clipdistance[MAX_CLIP_PLANES];
GLubyte *clipmask;
GLubyte ormask;
GLubyte andmask;
/* This function implements cliptesting for user-defined clip planes.
* The clipping of primitives to these planes is implemented in
- * t_vp_cliptmp.h.
+ * t_render_clip.h.
*/
#define USER_CLIPTEST(NAME, SZ) \
-static void NAME( GLcontext *ctx, \
+static void NAME( struct gl_context *ctx, \
GLvector4f *clip, \
- GLfloat *clipdistances[MAX_CLIP_PLANES], \
GLubyte *clipmask, \
GLubyte *clipormask, \
GLubyte *clipandmask ) \
{ \
- GLuint p; \
- \
- for (p = 0; p < ctx->Const.MaxClipPlanes; p++) \
- if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { \
- GLuint nr, i; \
- const GLfloat a = ctx->Transform._ClipUserPlane[p][0]; \
- const GLfloat b = ctx->Transform._ClipUserPlane[p][1]; \
- const GLfloat c = ctx->Transform._ClipUserPlane[p][2]; \
- const GLfloat d = ctx->Transform._ClipUserPlane[p][3]; \
- GLfloat *coord = (GLfloat *)clip->data; \
- GLuint stride = clip->stride; \
- GLuint count = clip->count; \
+ GLbitfield mask = ctx->Transform.ClipPlanesEnabled; \
+ while (mask) { \
+ const int p = u_bit_scan(&mask); \
+ GLuint nr, i; \
+ const GLfloat a = ctx->Transform._ClipUserPlane[p][0]; \
+ const GLfloat b = ctx->Transform._ClipUserPlane[p][1]; \
+ const GLfloat c = ctx->Transform._ClipUserPlane[p][2]; \
+ const GLfloat d = ctx->Transform._ClipUserPlane[p][3]; \
+ GLfloat *coord = (GLfloat *)clip->data; \
+ GLuint stride = clip->stride; \
+ GLuint count = clip->count; \
\
- for (nr = 0, i = 0 ; i < count ; i++) { \
- GLfloat dp = coord[0] * a + coord[1] * b; \
- if (SZ > 2) dp += coord[2] * c; \
- if (SZ > 3) dp += coord[3] * d; else dp += d; \
+ for (nr = 0, i = 0 ; i < count ; i++) { \
+ GLfloat dp = coord[0] * a + coord[1] * b; \
+ if (SZ > 2) dp += coord[2] * c; \
+ if (SZ > 3) dp += coord[3] * d; else dp += d; \
\
- if (dp < 0) { \
- nr++; \
- clipmask[i] |= CLIP_USER_BIT; \
- } \
+ if (dp < 0) { \
+ nr++; \
+ clipmask[i] |= CLIP_USER_BIT; \
+ } \
\
- clipdistances[p][i] = dp; \
+ STRIDE_F(coord, stride); \
+ } \
\
- STRIDE_F(coord, stride); \
- } \
- \
- if (nr > 0) { \
- *clipormask |= CLIP_USER_BIT; \
- if (nr == count) { \
- *clipandmask |= CLIP_USER_BIT; \
- return; \
- } \
- } \
+ if (nr > 0) { \
+ *clipormask |= CLIP_USER_BIT; \
+ if (nr == count) { \
+ *clipandmask |= CLIP_USER_BIT; \
+ return; \
+ } \
} \
+ } \
}
USER_CLIPTEST(userclip3, 3)
USER_CLIPTEST(userclip4, 4)
-static void (*(usercliptab[5]))( GLcontext *,
- GLvector4f *,
- GLfloat *[MAX_CLIP_PLANES],
- GLubyte *, GLubyte *, GLubyte * ) =
+static void (*(usercliptab[5]))( struct gl_context *,
+ GLvector4f *, GLubyte *,
+ GLubyte *, GLubyte * ) =
{
NULL,
NULL,
void
-tnl_clip_prepare(GLcontext *ctx)
+tnl_clip_prepare(struct gl_context *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) {
+ if (ctx->Transform.DepthClampNear && ctx->Transform.DepthClampFar) {
static GLboolean c_funcs_installed = GL_FALSE;
if (!c_funcs_installed) {
init_c_cliptest();
-static GLboolean run_vertex_stage( GLcontext *ctx,
+static GLboolean run_vertex_stage( struct gl_context *ctx,
struct tnl_pipeline_stage *stage )
{
struct vertex_stage_data *store = (struct vertex_stage_data *)stage->privatePtr;
* Use combined ModelProject to avoid some depth artifacts
*/
if (ctx->ModelviewMatrixStack.Top->type == MATRIX_IDENTITY)
- VB->EyePtr = VB->ObjPtr;
+ VB->EyePtr = VB->AttribPtr[_TNL_ATTRIB_POS];
else
VB->EyePtr = TransformRaw( &store->eye,
ctx->ModelviewMatrixStack.Top,
- VB->ObjPtr);
+ VB->AttribPtr[_TNL_ATTRIB_POS]);
}
VB->ClipPtr = TransformRaw( &store->clip,
&ctx->_ModelProjectMatrix,
- VB->ObjPtr );
+ VB->AttribPtr[_TNL_ATTRIB_POS] );
/* Drivers expect this to be clean to element 4...
*/
store->clipmask,
&store->ormask,
&store->andmask,
- !ctx->Transform.DepthClamp );
+ !(ctx->Transform.DepthClampNear &&
+ ctx->Transform.DepthClampFar) );
}
else {
VB->NdcPtr = NULL;
store->clipmask,
&store->ormask,
&store->andmask,
- !ctx->Transform.DepthClamp );
+ !(ctx->Transform.DepthClampNear &&
+ ctx->Transform.DepthClampFar) );
}
if (store->andmask)
if (ctx->Transform.ClipPlanesEnabled) {
usercliptab[VB->ClipPtr->size]( ctx,
VB->ClipPtr,
- store->clipdistance,
store->clipmask,
&store->ormask,
&store->andmask );
if (store->andmask)
return GL_FALSE;
-
- memcpy(VB->ClipDistancePtr, store->clipdistance,
- sizeof(store->clipdistance));
}
VB->ClipAndMask = store->andmask;
}
-static GLboolean init_vertex_stage( GLcontext *ctx,
+static GLboolean init_vertex_stage( struct gl_context *ctx,
struct tnl_pipeline_stage *stage )
{
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
struct vertex_stage_data *store;
GLuint size = VB->Size;
- unsigned i;
- stage->privatePtr = CALLOC(sizeof(*store));
+ stage->privatePtr = calloc(1, sizeof(*store));
store = VERTEX_STAGE_DATA(stage);
if (!store)
return GL_FALSE;
_mesa_vector4f_alloc( &store->clip, 0, size, 32 );
_mesa_vector4f_alloc( &store->proj, 0, size, 32 );
- store->clipmask = (GLubyte *) ALIGN_MALLOC(sizeof(GLubyte)*size, 32 );
- for (i = 0; i < MAX_CLIP_PLANES; i++)
- store->clipdistance[i] =
- (GLfloat *) ALIGN_MALLOC(sizeof(GLfloat) * size, 32);
+ store->clipmask = _mesa_align_malloc(sizeof(GLubyte)*size, 32 );
if (!store->clipmask ||
- !store->clipdistance[0] ||
- !store->clipdistance[1] ||
- !store->clipdistance[2] ||
- !store->clipdistance[3] ||
- !store->clipdistance[4] ||
- !store->clipdistance[5] ||
!store->eye.data ||
!store->clip.data ||
!store->proj.data)
struct vertex_stage_data *store = VERTEX_STAGE_DATA(stage);
if (store) {
- unsigned i;
-
_mesa_vector4f_free( &store->eye );
_mesa_vector4f_free( &store->clip );
_mesa_vector4f_free( &store->proj );
- ALIGN_FREE( store->clipmask );
-
- for (i = 0; i < MAX_CLIP_PLANES; i++)
- ALIGN_FREE(store->clipdistance[i]);
-
- FREE(store);
+ _mesa_align_free( store->clipmask );
+ free(store);
stage->privatePtr = NULL;
stage->run = init_vertex_stage;
}
projects / mesa.git / blobdiff