/**
* Set up the vbo->currval arrays to point at the context's current
* vertex attributes (with strides = 0).
*/
static void init_legacy_currval(struct gl_context *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
GLuint i;
/* Set up a constant (StrideB == 0) array for each current
* attribute:
*/
for (i = 0; i < VERT_ATTRIB_FF_MAX; i++) {
struct gl_vertex_array *cl = &vbo->currval[VERT_ATTRIB_FF(i)];
init_array(ctx, cl,
check_size(ctx->Current.Attrib[i]),
ctx->Current.Attrib[i]);
}
}
/**
* Set up the vbo->currval arrays to point at the context's current
* vertex attributes (with strides = 0).
*/
static void
init_legacy_currval(struct gl_context *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
GLuint i;
/* Set up a constant (Stride == 0) array for each current
* attribute:
*/
for (i = 0; i < VERT_ATTRIB_FF_MAX; i++) {
const unsigned attr = VERT_ATTRIB_FF(i);
struct gl_array_attributes *attrib = &vbo->current[attr];
init_array(ctx, attrib, check_size(ctx->Current.Attrib[attr]),
ctx->Current.Attrib[attr]);
}
}
/**
* Print info/data for glDrawArrays(), for debugging.
*/
static void
print_draw_arrays(struct gl_context *ctx,
GLenum mode, GLint start, GLsizei count)
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
int i;
printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n",
mode, start, count);
for (i = 0; i < 32; i++) {
struct gl_buffer_object *bufObj = exec->array.inputs[i]->BufferObj;
GLuint bufName = bufObj->Name;
GLint stride = exec->array.inputs[i]->Stride;
printf("attr %2d: size %d stride %d enabled %d "
"ptr %p Bufobj %u\n",
i,
exec->array.inputs[i]->Size,
stride,
/*exec->array.inputs[i]->Enabled,*/
arrayObj->VertexAttrib[VERT_ATTRIB_FF(i)].Enabled,
exec->array.inputs[i]->Ptr,
bufName);
if (bufName) {
GLubyte *p = ctx->Driver.MapBufferRange(ctx, 0, bufObj->Size,
GL_MAP_READ_BIT, bufObj);
int offset = (int) (GLintptr) exec->array.inputs[i]->Ptr;
float *f = (float *) (p + offset);
int *k = (int *) f;
int i;
int n = (count * stride) / 4;
if (n > 32)
n = 32;
printf(" Data at offset %d:\n", offset);
for (i = 0; i < n; i++) {
printf(" float[%d] = 0x%08x %f\n", i, k[i], f[i]);
}
ctx->Driver.UnmapBuffer(ctx, bufObj);
}
}
}
/**
* Called at context creation time.
*/
void vbo_save_init( struct gl_context *ctx )
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_save_context *save = &vbo->save;
save->ctx = ctx;
vbo_save_api_init( save );
vbo_save_callback_init(ctx);
{
struct gl_client_array *arrays = save->arrays;
unsigned i;
memcpy(arrays, &vbo->currval[VBO_ATTRIB_POS],
VERT_ATTRIB_FF_MAX * sizeof(arrays[0]));
for (i = 0; i < VERT_ATTRIB_FF_MAX; ++i) {
struct gl_client_array *array;
array = &arrays[VERT_ATTRIB_FF(i)];
array->BufferObj = NULL;
_mesa_reference_buffer_object(ctx, &arrays->BufferObj,
vbo->currval[VBO_ATTRIB_POS+i].BufferObj);
}
memcpy(arrays + VERT_ATTRIB_GENERIC(0),
&vbo->currval[VBO_ATTRIB_GENERIC0],
VERT_ATTRIB_GENERIC_MAX * sizeof(arrays[0]));
for (i = 0; i < VERT_ATTRIB_GENERIC_MAX; ++i) {
struct gl_client_array *array;
array = &arrays[VERT_ATTRIB_GENERIC(i)];
array->BufferObj = NULL;
_mesa_reference_buffer_object(ctx, &array->BufferObj,
vbo->currval[VBO_ATTRIB_GENERIC0+i].BufferObj);
}
}
ctx->Driver.CurrentSavePrimitive = PRIM_UNKNOWN;
}
/**
* Set the vbo->exec->inputs[] pointers to point to the enabled
* vertex arrays. This depends on the current vertex program/shader
* being executed because of whether or not generic vertex arrays
* alias the conventional vertex arrays.
* For arrays that aren't enabled, we set the input[attrib] pointer
* to point at a zero-stride current value "array".
*/
static void
recalculate_input_bindings(struct gl_context *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
struct gl_client_array *vertexAttrib = ctx->Array.ArrayObj->VertexAttrib;
const struct gl_client_array **inputs = &exec->array.inputs[0];
GLbitfield64 const_inputs = 0x0;
GLuint i;
switch (get_program_mode(ctx)) {
case VP_NONE:
/* When no vertex program is active (or the vertex program is generated
* from fixed-function state). We put the material values into the
* generic slots. This is the only situation where material values
* are available as per-vertex attributes.
*/
for (i = 0; i < VERT_ATTRIB_FF_MAX; i++) {
if (vertexAttrib[VERT_ATTRIB_FF(i)].Enabled)
inputs[i] = &vertexAttrib[VERT_ATTRIB_FF(i)];
else {
inputs[i] = &vbo->currval[VBO_ATTRIB_POS+i];
const_inputs |= VERT_BIT(i);
}
}
for (i = 0; i < MAT_ATTRIB_MAX; i++) {
inputs[VERT_ATTRIB_GENERIC(i)] =
&vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT+i];
const_inputs |= VERT_BIT_GENERIC(i);
}
/* Could use just about anything, just to fill in the empty
* slots:
*/
for (i = MAT_ATTRIB_MAX; i < VERT_ATTRIB_GENERIC_MAX; i++) {
inputs[VERT_ATTRIB_GENERIC(i)] = &vbo->currval[VBO_ATTRIB_GENERIC0+i];
const_inputs |= VERT_BIT_GENERIC(i);
}
break;
case VP_ARB:
/* GL_ARB_vertex_program or GLSL vertex shader - Only the generic[0]
* attribute array aliases and overrides the legacy position array.
*
* Otherwise, legacy attributes available in the legacy slots,
* generic attributes in the generic slots and materials are not
* available as per-vertex attributes.
*/
if (vertexAttrib[VERT_ATTRIB_GENERIC0].Enabled)
inputs[0] = &vertexAttrib[VERT_ATTRIB_GENERIC0];
else if (vertexAttrib[VERT_ATTRIB_POS].Enabled)
inputs[0] = &vertexAttrib[VERT_ATTRIB_POS];
else {
inputs[0] = &vbo->currval[VBO_ATTRIB_POS];
const_inputs |= VERT_BIT_POS;
}
for (i = 1; i < VERT_ATTRIB_FF_MAX; i++) {
if (vertexAttrib[VERT_ATTRIB_FF(i)].Enabled)
inputs[i] = &vertexAttrib[VERT_ATTRIB_FF(i)];
else {
inputs[i] = &vbo->currval[VBO_ATTRIB_POS+i];
const_inputs |= VERT_BIT_FF(i);
}
}
for (i = 1; i < VERT_ATTRIB_GENERIC_MAX; i++) {
if (vertexAttrib[VERT_ATTRIB_GENERIC(i)].Enabled)
inputs[VERT_ATTRIB_GENERIC(i)] = &vertexAttrib[VERT_ATTRIB_GENERIC(i)];
else {
inputs[VERT_ATTRIB_GENERIC(i)] = &vbo->currval[VBO_ATTRIB_GENERIC0+i];
const_inputs |= VERT_BIT_GENERIC(i);
}
}
inputs[VERT_ATTRIB_GENERIC0] = inputs[0];
break;
}
_mesa_set_varying_vp_inputs( ctx, VERT_BIT_ALL & (~const_inputs) );
ctx->NewDriverState |= ctx->DriverFlags.NewArray;
}
void vbo_exec_vtx_init( struct vbo_exec_context *exec )
{
struct gl_context *ctx = exec->ctx;
struct vbo_context *vbo = vbo_context(ctx);
GLuint i;
/* Allocate a buffer object. Will just reuse this object
* continuously, unless vbo_use_buffer_objects() is called to enable
* use of real VBOs.
*/
_mesa_reference_buffer_object(ctx,
&exec->vtx.bufferobj,
ctx->Shared->NullBufferObj);
assert(!exec->vtx.buffer_map);
exec->vtx.buffer_map = _mesa_align_malloc(VBO_VERT_BUFFER_SIZE, 64);
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
vbo_exec_vtxfmt_init( exec );
_mesa_noop_vtxfmt_init(&exec->vtxfmt_noop);
exec->vtx.enabled = 0;
for (i = 0 ; i < VBO_ATTRIB_MAX ; i++) {
assert(i < ARRAY_SIZE(exec->vtx.attrsz));
exec->vtx.attrsz[i] = 0;
assert(i < ARRAY_SIZE(exec->vtx.attrtype));
exec->vtx.attrtype[i] = GL_FLOAT;
assert(i < ARRAY_SIZE(exec->vtx.active_sz));
exec->vtx.active_sz[i] = 0;
}
for (i = 0 ; i < VERT_ATTRIB_MAX; i++) {
assert(i < ARRAY_SIZE(exec->vtx.inputs));
assert(i < ARRAY_SIZE(exec->vtx.arrays));
exec->vtx.inputs[i] = &exec->vtx.arrays[i];
}
{
struct gl_client_array *arrays = exec->vtx.arrays;
unsigned i;
memcpy(arrays, &vbo->currval[VBO_ATTRIB_POS],
VERT_ATTRIB_FF_MAX * sizeof(arrays[0]));
for (i = 0; i < VERT_ATTRIB_FF_MAX; ++i) {
struct gl_client_array *array;
array = &arrays[VERT_ATTRIB_FF(i)];
array->BufferObj = NULL;
_mesa_reference_buffer_object(ctx, &array->BufferObj,
vbo->currval[VBO_ATTRIB_POS+i].BufferObj);
}
memcpy(arrays + VERT_ATTRIB_GENERIC(0),
&vbo->currval[VBO_ATTRIB_GENERIC0],
VERT_ATTRIB_GENERIC_MAX * sizeof(arrays[0]));
for (i = 0; i < VERT_ATTRIB_GENERIC_MAX; ++i) {
struct gl_client_array *array;
array = &arrays[VERT_ATTRIB_GENERIC(i)];
array->BufferObj = NULL;
_mesa_reference_buffer_object(ctx, &array->BufferObj,
vbo->currval[VBO_ATTRIB_GENERIC0+i].BufferObj);
}
}
exec->vtx.vertex_size = 0;
exec->begin_vertices_flags = FLUSH_UPDATE_CURRENT;
}
void vbo_exec_vtx_init( struct vbo_exec_context *exec )
{
struct gl_context *ctx = exec->ctx;
struct vbo_context *vbo = vbo_context(ctx);
GLuint i;
/* Allocate a buffer object. Will just reuse this object
* continuously, unless vbo_use_buffer_objects() is called to enable
* use of real VBOs.
*/
_mesa_reference_buffer_object(ctx,
&exec->vtx.bufferobj,
ctx->Shared->NullBufferObj);
ASSERT(!exec->vtx.buffer_map);
exec->vtx.buffer_map = (GLfloat *)_mesa_align_malloc(VBO_VERT_BUFFER_SIZE, 64);
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
vbo_exec_vtxfmt_init( exec );
_mesa_noop_vtxfmt_init(&exec->vtxfmt_noop);
/* Hook our functions into the dispatch table.
*/
_mesa_install_exec_vtxfmt( ctx, &exec->vtxfmt );
for (i = 0 ; i < VBO_ATTRIB_MAX ; i++) {
ASSERT(i < Elements(exec->vtx.attrsz));
exec->vtx.attrsz[i] = 0;
ASSERT(i < Elements(exec->vtx.active_sz));
exec->vtx.active_sz[i] = 0;
}
for (i = 0 ; i < VERT_ATTRIB_MAX; i++) {
ASSERT(i < Elements(exec->vtx.inputs));
ASSERT(i < Elements(exec->vtx.arrays));
exec->vtx.inputs[i] = &exec->vtx.arrays[i];
}
{
struct gl_client_array *arrays = exec->vtx.arrays;
unsigned i;
memcpy(arrays, vbo->legacy_currval,
VERT_ATTRIB_FF_MAX * sizeof(arrays[0]));
for (i = 0; i < VERT_ATTRIB_FF_MAX; ++i) {
struct gl_client_array *array;
array = &arrays[VERT_ATTRIB_FF(i)];
array->BufferObj = NULL;
_mesa_reference_buffer_object(ctx, &arrays->BufferObj,
vbo->legacy_currval[i].BufferObj);
}
memcpy(arrays + VERT_ATTRIB_GENERIC(0), vbo->generic_currval,
VERT_ATTRIB_GENERIC_MAX * sizeof(arrays[0]));
for (i = 0; i < VERT_ATTRIB_GENERIC_MAX; ++i) {
struct gl_client_array *array;
array = &arrays[VERT_ATTRIB_GENERIC(i)];
array->BufferObj = NULL;
_mesa_reference_buffer_object(ctx, &array->BufferObj,
vbo->generic_currval[i].BufferObj);
}
}
exec->vtx.vertex_size = 0;
exec->begin_vertices_flags = FLUSH_UPDATE_CURRENT;
}