* Keith Whitwell <keithw@vmware.com>
*/
+#include <stdio.h>
#include "main/glheader.h"
#include "main/bufferobj.h"
#include "main/compiler.h"
GLuint i;
printf("%s: %u vertices %d primitives, %d vertsize\n",
- __FUNCTION__,
+ __func__,
count,
exec->vtx.prim_count,
exec->vtx.vertex_size);
for (i = 0 ; i < exec->vtx.prim_count ; i++) {
struct _mesa_prim *prim = &exec->vtx.prim[i];
printf(" prim %d: %s%s %d..%d %s %s\n",
- i,
+ i,
_mesa_lookup_prim_by_nr(prim->mode),
prim->weak ? " (weak)" : "",
- prim->start,
+ prim->start,
prim->start + prim->count,
prim->begin ? "BEGIN" : "(wrap)",
prim->end ? "END" : "(wrap)");
}
-/*
- * NOTE: Need to have calculated primitives by this point -- do it on the fly.
- * NOTE: Old 'parity' issue is gone.
+/**
+ * Copy zero, one or two vertices from the current vertex buffer into
+ * the temporary "copy" buffer.
+ * This is used when a single primitive overflows a vertex buffer and
+ * we need to continue the primitive in a new vertex buffer.
+ * The temporary "copy" buffer holds the vertices which need to get
+ * copied from the old buffer to the new one.
*/
static GLuint
vbo_copy_vertices( struct vbo_exec_context *exec )
{
- GLuint nr = exec->vtx.prim[exec->vtx.prim_count-1].count;
+ struct _mesa_prim *last_prim = &exec->vtx.prim[exec->vtx.prim_count - 1];
+ const GLuint nr = last_prim->count;
GLuint ovf, i;
- GLuint sz = exec->vtx.vertex_size;
+ const GLuint sz = exec->vtx.vertex_size;
fi_type *dst = exec->vtx.copied.buffer;
- const fi_type *src = (exec->vtx.buffer_map +
- exec->vtx.prim[exec->vtx.prim_count-1].start *
- exec->vtx.vertex_size);
-
+ const fi_type *src = exec->vtx.buffer_map + last_prim->start * sz;
switch (exec->ctx->Driver.CurrentExecPrimitive) {
case GL_POINTS:
return 1;
}
case GL_LINE_LOOP:
+ if (last_prim->begin == 0) {
+ /* We're dealing with the second or later section of a split/wrapped
+ * GL_LINE_LOOP. Since we're converting line loops to line strips,
+ * we've already increment the last_prim->start counter by one to
+ * skip the 0th vertex in the loop. We need to undo that (effectively
+ * subtract one from last_prim->start) so that we copy the 0th vertex
+ * to the next vertex buffer.
+ */
+ assert(last_prim->start > 0);
+ src -= sz;
+ }
+ /* fall-through */
case GL_TRIANGLE_FAN:
case GL_POLYGON:
if (nr == 0) {
case GL_TRIANGLE_STRIP:
/* no parity issue, but need to make sure the tri is not drawn twice */
if (nr & 1) {
- exec->vtx.prim[exec->vtx.prim_count-1].count--;
+ last_prim->count--;
}
/* fallthrough */
case GL_QUAD_STRIP:
exec->vtx.inputs[attr] = &arrays[attr];
if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
- /* a real buffer obj: Ptr is an offset, not a pointer*/
+ /* a real buffer obj: Ptr is an offset, not a pointer */
assert(exec->vtx.bufferobj->Mappings[MAP_INTERNAL].Pointer);
assert(offset >= 0);
arrays[attr].Ptr = (GLubyte *)
{
if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
struct gl_context *ctx = exec->ctx;
-
+
if (ctx->Driver.FlushMappedBufferRange) {
GLintptr offset = exec->vtx.buffer_used -
exec->vtx.bufferobj->Mappings[MAP_INTERNAL].Offset;
assert(exec->vtx.buffer_used <= VBO_VERT_BUFFER_SIZE);
assert(exec->vtx.buffer_ptr != NULL);
-
+
ctx->Driver.UnmapBuffer(ctx, exec->vtx.bufferobj, MAP_INTERNAL);
exec->vtx.buffer_map = NULL;
exec->vtx.buffer_ptr = NULL;
GL_MAP_FLUSH_EXPLICIT_BIT |
MESA_MAP_NOWAIT_BIT;
const GLenum usage = GL_STREAM_DRAW_ARB;
-
+
if (!_mesa_is_bufferobj(exec->vtx.bufferobj))
return;
exec->vtx.buffer_ptr = exec->vtx.buffer_map = NULL;
}
}
-
+
if (!exec->vtx.buffer_map) {
/* Need to allocate a new VBO */
exec->vtx.buffer_used = 0;
if (0)
vbo_exec_debug_verts( exec );
- if (exec->vtx.prim_count &&
+ if (exec->vtx.prim_count &&
exec->vtx.vert_count) {
- exec->vtx.copied.nr = vbo_copy_vertices( exec );
+ exec->vtx.copied.nr = vbo_copy_vertices( exec );
if (exec->vtx.copied.nr != exec->vtx.vert_count) {
struct gl_context *ctx = exec->ctx;
-
+
/* Before the update_state() as this may raise _NEW_VARYING_VP_INPUTS
* from _mesa_set_varying_vp_inputs().
*/
}
if (0)
- printf("%s %d %d\n", __FUNCTION__, exec->vtx.prim_count,
+ printf("%s %d %d\n", __func__, exec->vtx.prim_count,
exec->vtx.vert_count);
- vbo_context(ctx)->draw_prims( ctx,
+ vbo_context(ctx)->draw_prims( ctx,
exec->vtx.prim,
exec->vtx.prim_count,
NULL,
GL_TRUE,
0,
exec->vtx.vert_count - 1,
- NULL, NULL);
+ NULL, 0, NULL);
/* If using a real VBO, get new storage -- unless asked not to.
*/
if (keepUnmapped || exec->vtx.vertex_size == 0)
exec->vtx.max_vert = 0;
else
- exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) /
- (exec->vtx.vertex_size * sizeof(GLfloat)));
+ exec->vtx.max_vert = vbo_compute_max_verts(exec);
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
exec->vtx.prim_count = 0;
projects / mesa.git / blobdiff