/**
* Deal with buffer wrapping where provoked by the vertex buffer
* filling up, as opposed to upgrade_vertex().
*/
static void
vbo_exec_vtx_wrap(struct vbo_exec_context *exec)
{
unsigned numComponents;
/* Run pipeline on current vertices, copy wrapped vertices
* to exec->vtx.copied.
*/
vbo_exec_wrap_buffers( exec );
if (!exec->vtx.buffer_ptr) {
/* probably ran out of memory earlier when allocating the VBO */
return;
}
/* Copy stored stored vertices to start of new list.
*/
assert(exec->vtx.max_vert - exec->vtx.vert_count > exec->vtx.copied.nr);
numComponents = exec->vtx.copied.nr * exec->vtx.vertex_size;
memcpy(exec->vtx.buffer_ptr,
exec->vtx.copied.buffer,
numComponents * sizeof(fi_type));
exec->vtx.buffer_ptr += numComponents;
exec->vtx.vert_count += exec->vtx.copied.nr;
exec->vtx.copied.nr = 0;
}
/**
* Deal with buffer wrapping where provoked by the vertex buffer
* filling up, as opposed to upgrade_vertex().
*/
void vbo_exec_vtx_wrap( struct vbo_exec_context *exec )
{
GLfloat *data = exec->vtx.copied.buffer;
GLuint i;
/* Run pipeline on current vertices, copy wrapped vertices
* to exec->vtx.copied.
*/
vbo_exec_wrap_buffers( exec );
if (!exec->vtx.buffer_ptr) {
/* probably ran out of memory earlier when allocating the VBO */
return;
}
/* Copy stored stored vertices to start of new list.
*/
assert(exec->vtx.max_vert - exec->vtx.vert_count > exec->vtx.copied.nr);
for (i = 0 ; i < exec->vtx.copied.nr ; i++) {
memcpy( exec->vtx.buffer_ptr, data,
exec->vtx.vertex_size * sizeof(GLfloat));
exec->vtx.buffer_ptr += exec->vtx.vertex_size;
data += exec->vtx.vertex_size;
exec->vtx.vert_count++;
}
exec->vtx.copied.nr = 0;
}
/**
* Deal with buffer wrapping where provoked by the vertex buffer
* filling up, as opposed to upgrade_vertex().
*/
void vbo_exec_vtx_wrap( struct vbo_exec_context *exec )
{
GLfloat *data = exec->vtx.copied.buffer;
GLuint i;
/* Run pipeline on current vertices, copy wrapped vertices
* to exec->vtx.copied.
*/
vbo_exec_wrap_buffers( exec );
/* Copy stored stored vertices to start of new list.
*/
assert(exec->vtx.max_vert - exec->vtx.vert_count > exec->vtx.copied.nr);
for (i = 0 ; i < exec->vtx.copied.nr ; i++) {
memcpy( exec->vtx.buffer_ptr, data,
exec->vtx.vertex_size * sizeof(GLfloat));
exec->vtx.buffer_ptr += exec->vtx.vertex_size;
data += exec->vtx.vertex_size;
exec->vtx.vert_count++;
}
exec->vtx.copied.nr = 0;
}
/**
* Flush existing data, set new attrib size, replay copied vertices.
* This is called when we transition from a small vertex attribute size
* to a larger one. Ex: glTexCoord2f -> glTexCoord4f.
* We need to go back over the previous 2-component texcoords and insert
* zero and one values.
*/
static void
vbo_exec_wrap_upgrade_vertex(struct vbo_exec_context *exec,
GLuint attr, GLuint newSize )
{
struct gl_context *ctx = exec->ctx;
struct vbo_context *vbo = vbo_context(ctx);
const GLint lastcount = exec->vtx.vert_count;
fi_type *old_attrptr[VBO_ATTRIB_MAX];
const GLuint old_vtx_size = exec->vtx.vertex_size; /* floats per vertex */
const GLuint oldSize = exec->vtx.attrsz[attr];
GLuint i;
/* Run pipeline on current vertices, copy wrapped vertices
* to exec->vtx.copied.
*/
vbo_exec_wrap_buffers( exec );
if (unlikely(exec->vtx.copied.nr)) {
/* We're in the middle of a primitive, keep the old vertex
* format around to be able to translate the copied vertices to
* the new format.
*/
memcpy(old_attrptr, exec->vtx.attrptr, sizeof(old_attrptr));
}
if (unlikely(oldSize)) {
/* Do a COPY_TO_CURRENT to ensure back-copying works for the
* case when the attribute already exists in the vertex and is
* having its size increased.
*/
vbo_exec_copy_to_current( exec );
}
/* Heuristic: Attempt to isolate attributes received outside
* begin/end so that they don't bloat the vertices.
*/
if (!_mesa_inside_begin_end(ctx) &&
!oldSize && lastcount > 8 && exec->vtx.vertex_size) {
vbo_exec_copy_to_current( exec );
reset_attrfv( exec );
}
/* Fix up sizes:
*/
exec->vtx.attrsz[attr] = newSize;
exec->vtx.vertex_size += newSize - oldSize;
exec->vtx.max_vert = vbo_compute_max_verts(exec);
exec->vtx.vert_count = 0;
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
exec->vtx.enabled |= BITFIELD64_BIT(attr);
if (unlikely(oldSize)) {
/* Size changed, recalculate all the attrptr[] values
*/
fi_type *tmp = exec->vtx.vertex;
for (i = 0 ; i < VBO_ATTRIB_MAX ; i++) {
if (exec->vtx.attrsz[i]) {
exec->vtx.attrptr[i] = tmp;
tmp += exec->vtx.attrsz[i];
}
else
exec->vtx.attrptr[i] = NULL; /* will not be dereferenced */
}
/* Copy from current to repopulate the vertex with correct
* values.
*/
vbo_exec_copy_from_current( exec );
}
else {
/* Just have to append the new attribute at the end */
exec->vtx.attrptr[attr] = exec->vtx.vertex +
exec->vtx.vertex_size - newSize;
}
/* Replay stored vertices to translate them
* to new format here.
*
* -- No need to replay - just copy piecewise
*/
if (unlikely(exec->vtx.copied.nr)) {
fi_type *data = exec->vtx.copied.buffer;
fi_type *dest = exec->vtx.buffer_ptr;
assert(exec->vtx.buffer_ptr == exec->vtx.buffer_map);
for (i = 0 ; i < exec->vtx.copied.nr ; i++) {
GLbitfield64 enabled = exec->vtx.enabled;
while (enabled) {
const int j = u_bit_scan64(&enabled);
GLuint sz = exec->vtx.attrsz[j];
GLint old_offset = old_attrptr[j] - exec->vtx.vertex;
GLint new_offset = exec->vtx.attrptr[j] - exec->vtx.vertex;
assert(sz);
if (j == attr) {
if (oldSize) {
fi_type tmp[4];
COPY_CLEAN_4V_TYPE_AS_UNION(tmp, oldSize,
data + old_offset,
exec->vtx.attrtype[j]);
COPY_SZ_4V(dest + new_offset, newSize, tmp);
} else {
fi_type *current = (fi_type *)vbo->currval[j].Ptr;
COPY_SZ_4V(dest + new_offset, sz, current);
}
}
else {
COPY_SZ_4V(dest + new_offset, sz, data + old_offset);
}
}
data += old_vtx_size;
dest += exec->vtx.vertex_size;
}
exec->vtx.buffer_ptr = dest;
exec->vtx.vert_count += exec->vtx.copied.nr;
exec->vtx.copied.nr = 0;
}
}
/**
* Flush existing data, set new attrib size, replay copied vertices.
* This is called when we transition from a small vertex attribute size
* to a larger one. Ex: glTexCoord2f -> glTexCoord4f.
* We need to go back over the previous 2-component texcoords and insert
* zero and one values.
*/
static void
vbo_exec_wrap_upgrade_vertex(struct vbo_exec_context *exec,
GLuint attr, GLuint newSize )
{
struct gl_context *ctx = exec->ctx;
struct vbo_context *vbo = vbo_context(ctx);
const GLint lastcount = exec->vtx.vert_count;
GLfloat *old_attrptr[VBO_ATTRIB_MAX];
const GLuint old_vtx_size = exec->vtx.vertex_size; /* floats per vertex */
const GLuint oldSize = exec->vtx.attrsz[attr];
GLuint i;
/* Run pipeline on current vertices, copy wrapped vertices
* to exec->vtx.copied.
*/
vbo_exec_wrap_buffers( exec );
if (unlikely(exec->vtx.copied.nr)) {
/* We're in the middle of a primitive, keep the old vertex
* format around to be able to translate the copied vertices to
* the new format.
*/
memcpy(old_attrptr, exec->vtx.attrptr, sizeof(old_attrptr));
}
if (unlikely(oldSize)) {
/* Do a COPY_TO_CURRENT to ensure back-copying works for the
* case when the attribute already exists in the vertex and is
* having its size increased.
*/
vbo_exec_copy_to_current( exec );
}
/* Heuristic: Attempt to isolate attributes received outside
* begin/end so that they don't bloat the vertices.
*/
if (ctx->Driver.CurrentExecPrimitive == PRIM_OUTSIDE_BEGIN_END &&
!oldSize && lastcount > 8 && exec->vtx.vertex_size) {
vbo_exec_copy_to_current( exec );
reset_attrfv( exec );
}
/* Fix up sizes:
*/
exec->vtx.attrsz[attr] = newSize;
exec->vtx.vertex_size += newSize - oldSize;
exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) /
(exec->vtx.vertex_size * sizeof(GLfloat)));
exec->vtx.vert_count = 0;
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
if (unlikely(oldSize)) {
/* Size changed, recalculate all the attrptr[] values
*/
GLfloat *tmp = exec->vtx.vertex;
for (i = 0 ; i < VBO_ATTRIB_MAX ; i++) {
if (exec->vtx.attrsz[i]) {
exec->vtx.attrptr[i] = tmp;
tmp += exec->vtx.attrsz[i];
}
else
exec->vtx.attrptr[i] = NULL; /* will not be dereferenced */
}
/* Copy from current to repopulate the vertex with correct
* values.
*/
vbo_exec_copy_from_current( exec );
}
else {
/* Just have to append the new attribute at the end */
exec->vtx.attrptr[attr] = exec->vtx.vertex +
exec->vtx.vertex_size - newSize;
}
/* Replay stored vertices to translate them
* to new format here.
*
* -- No need to replay - just copy piecewise
*/
if (unlikely(exec->vtx.copied.nr)) {
GLfloat *data = exec->vtx.copied.buffer;
GLfloat *dest = exec->vtx.buffer_ptr;
GLuint j;
assert(exec->vtx.buffer_ptr == exec->vtx.buffer_map);
for (i = 0 ; i < exec->vtx.copied.nr ; i++) {
for (j = 0 ; j < VBO_ATTRIB_MAX ; j++) {
GLuint sz = exec->vtx.attrsz[j];
if (sz) {
GLint old_offset = old_attrptr[j] - exec->vtx.vertex;
GLint new_offset = exec->vtx.attrptr[j] - exec->vtx.vertex;
if (j == attr) {
if (oldSize) {
GLfloat tmp[4];
COPY_CLEAN_4V(tmp, oldSize, data + old_offset);
COPY_SZ_4V(dest + new_offset, newSize, tmp);
} else {
GLfloat *current = (GLfloat *)vbo->currval[j].Ptr;
COPY_SZ_4V(dest + new_offset, sz, current);
}
}
else {
COPY_SZ_4V(dest + new_offset, sz, data + old_offset);
}
}
}
data += old_vtx_size;
dest += exec->vtx.vertex_size;
}
exec->vtx.buffer_ptr = dest;
exec->vtx.vert_count += exec->vtx.copied.nr;
exec->vtx.copied.nr = 0;
}
}
/**
* Flush existing data, set new attrib size, replay copied vertices.
*/
static void vbo_exec_wrap_upgrade_vertex( struct vbo_exec_context *exec,
GLuint attr,
GLuint newsz )
{
GLcontext *ctx = exec->ctx;
struct vbo_context *vbo = vbo_context(ctx);
GLint lastcount = exec->vtx.vert_count;
GLfloat *tmp;
GLuint oldsz;
GLuint i;
/* Run pipeline on current vertices, copy wrapped vertices
* to exec->vtx.copied.
*/
vbo_exec_wrap_buffers( exec );
/* Do a COPY_TO_CURRENT to ensure back-copying works for the case
* when the attribute already exists in the vertex and is having
* its size increased.
*/
vbo_exec_copy_to_current( exec );
/* Heuristic: Attempt to isolate attributes received outside
* begin/end so that they don't bloat the vertices.
*/
if (ctx->Driver.CurrentExecPrimitive == PRIM_OUTSIDE_BEGIN_END &&
exec->vtx.attrsz[attr] == 0 &&
lastcount > 8 &&
exec->vtx.vertex_size) {
reset_attrfv( exec );
}
/* Fix up sizes:
*/
oldsz = exec->vtx.attrsz[attr];
exec->vtx.attrsz[attr] = newsz;
exec->vtx.vertex_size += newsz - oldsz;
exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) /
(exec->vtx.vertex_size * sizeof(GLfloat)));
exec->vtx.vert_count = 0;
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
/* Recalculate all the attrptr[] values
*/
for (i = 0, tmp = exec->vtx.vertex ; i < VBO_ATTRIB_MAX ; i++) {
if (exec->vtx.attrsz[i]) {
exec->vtx.attrptr[i] = tmp;
tmp += exec->vtx.attrsz[i];
}
else
exec->vtx.attrptr[i] = NULL; /* will not be dereferenced */
}
/* Copy from current to repopulate the vertex with correct values.
*/
vbo_exec_copy_from_current( exec );
/* Replay stored vertices to translate them
* to new format here.
*
* -- No need to replay - just copy piecewise
*/
if (exec->vtx.copied.nr)
{
GLfloat *data = exec->vtx.copied.buffer;
GLfloat *dest = exec->vtx.buffer_ptr;
GLuint j;
assert(exec->vtx.buffer_ptr == exec->vtx.buffer_map);
for (i = 0 ; i < exec->vtx.copied.nr ; i++) {
for (j = 0 ; j < VBO_ATTRIB_MAX ; j++) {
if (exec->vtx.attrsz[j]) {
if (j == attr) {
if (oldsz) {
COPY_CLEAN_4V( dest, oldsz, data );
data += oldsz;
dest += newsz;
} else {
const GLfloat *current = (const GLfloat *)vbo->currval[j].Ptr;
COPY_SZ_4V( dest, newsz, current );
dest += newsz;
}
}
else {
GLuint sz = exec->vtx.attrsz[j];
COPY_SZ_4V( dest, sz, data );
dest += sz;
data += sz;
}
}
}
}
exec->vtx.buffer_ptr = dest;
exec->vtx.vert_count += exec->vtx.copied.nr;
exec->vtx.copied.nr = 0;
}
}