/**
* \param input one of VERT_ATTRIB_x tokens.
*/
static struct ureg register_input( struct tnl_program *p, GLuint input )
{
assert(input < VERT_ATTRIB_MAX);
if (p->state->varying_vp_inputs & VERT_BIT(input)) {
p->program->Base.InputsRead |= VERT_BIT(input);
return make_ureg(PROGRAM_INPUT, input);
}
else {
return register_param3( p, STATE_INTERNAL, STATE_CURRENT_ATTRIB, input );
}
}
/**
* See GL_ARB_instanced_arrays.
* Note that the instance divisor only applies to generic arrays, not
* the legacy vertex arrays.
*/
void GLAPIENTRY
_mesa_VertexAttribDivisor(GLuint index, GLuint divisor)
{
struct gl_client_array *array;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (!ctx->Extensions.ARB_instanced_arrays) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glVertexAttribDivisor()");
return;
}
if (index >= ctx->Const.VertexProgram.MaxAttribs) {
_mesa_error(ctx, GL_INVALID_ENUM, "glVertexAttribDivisor(index = %u)",
index);
return;
}
ASSERT(VERT_ATTRIB_GENERIC(index) < Elements(ctx->Array.ArrayObj->VertexAttrib));
array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(index)];
if (array->InstanceDivisor != divisor) {
FLUSH_VERTICES(ctx, _NEW_ARRAY);
array->InstanceDivisor = divisor;
ctx->Array.ArrayObj->NewArrays |= VERT_BIT(VERT_ATTRIB_GENERIC(index));
}
}
/**
* Do error checking and update state for glVertex/Color/TexCoord/...Pointer
* functions.
*
* \param func name of calling function used for error reporting
* \param attrib the attribute array index to update
* \param legalTypes bitmask of *_BIT above indicating legal datatypes
* \param sizeMin min allowable size value
* \param sizeMax max allowable size value
* \param size components per element (1, 2, 3 or 4)
* \param type datatype of each component (GL_FLOAT, GL_INT, etc)
* \param stride stride between elements, in elements
* \param normalized are integer types converted to floats in [-1, 1]?
* \param integer integer-valued values (will not be normalized to [-1,1])
* \param ptr the address (or offset inside VBO) of the array data
*/
static void
update_array(struct gl_context *ctx,
const char *func,
GLuint attrib, GLbitfield legalTypesMask,
GLint sizeMin, GLint sizeMax,
GLint size, GLenum type, GLsizei stride,
GLboolean normalized, GLboolean integer,
const GLvoid *ptr)
{
struct gl_client_array *array;
GLbitfield typeBit;
GLsizei elementSize;
typeBit = type_to_bit(ctx, type);
if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) {
_mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)",
func, _mesa_lookup_enum_by_nr(type));
return;
}
/* Do size parameter checking. */
if (size < sizeMin || size > sizeMax || size > 4) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size);
return;
}
ASSERT(size <= 4);
if (stride < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride );
return;
}
if (ctx->Array.ArrayObj->ARBsemantics &&
!_mesa_is_bufferobj(ctx->Array.ArrayBufferObj)) {
/* GL_ARB_vertex_array_object requires that all arrays reside in VBOs.
* Generate GL_INVALID_OPERATION if that's not true.
*/
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(non-VBO array)", func);
return;
}
elementSize = _mesa_sizeof_type(type) * size;
array = &ctx->Array.ArrayObj->VertexAttrib[attrib];
array->Size = size;
array->Type = type;
array->Stride = stride;
array->StrideB = stride ? stride : elementSize;
array->Normalized = normalized;
array->Integer = integer;
array->Ptr = (const GLubyte *) ptr;
array->_ElementSize = elementSize;
_mesa_reference_buffer_object(ctx, &array->BufferObj,
ctx->Array.ArrayBufferObj);
ctx->NewState |= _NEW_ARRAY;
ctx->Array.NewState |= VERT_BIT(attrib);
}
/**
* Do error checking and update state for glVertex/Color/TexCoord/...Pointer
* functions.
*
* \param func name of calling function used for error reporting
* \param attrib the attribute array index to update
* \param legalTypes bitmask of *_BIT above indicating legal datatypes
* \param sizeMin min allowable size value
* \param sizeMax max allowable size value
* \param size components per element (1, 2, 3 or 4)
* \param type datatype of each component (GL_FLOAT, GL_INT, etc)
* \param stride stride between elements, in elements
* \param normalized are integer types converted to floats in [-1, 1]?
* \param integer integer-valued values (will not be normalized to [-1,1])
* \param ptr the address (or offset inside VBO) of the array data
*/
static void
update_array(struct gl_context *ctx,
const char *func,
GLuint attrib, GLbitfield legalTypesMask,
GLint sizeMin, GLint sizeMax,
GLint size, GLenum type, GLsizei stride,
GLboolean normalized, GLboolean integer,
const GLvoid *ptr)
{
struct gl_client_array *array;
GLbitfield typeBit;
GLsizei elementSize;
typeBit = type_to_bit(ctx, type);
if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) {
_mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)",
func, _mesa_lookup_enum_by_nr(type));
return;
}
/* Do size parameter checking. */
if (size < sizeMin || size > sizeMax || size > 4) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size);
return;
}
ASSERT(size <= 4);
if (stride < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride );
return;
}
elementSize = _mesa_sizeof_type(type) * size;
array = &ctx->Array.VertexAttrib[attrib];
array->Size = size;
array->Type = type;
array->Stride = stride;
array->StrideB = stride ? stride : elementSize;
array->Normalized = normalized;
array->Integer = integer;
array->Ptr = (const GLubyte *) ptr;
array->_ElementSize = elementSize;
ctx->NewState |= _NEW_ARRAY;
ctx->Array.NewState |= VERT_BIT(attrib);
}
/**
* 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;
}
/* TODO: populate these as the vertex is defined:
*/
static void
vbo_exec_bind_arrays( struct gl_context *ctx )
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
struct gl_client_array *arrays = exec->vtx.arrays;
const GLuint count = exec->vtx.vert_count;
const GLuint *map;
GLuint attr;
GLbitfield64 varying_inputs = 0x0;
/* Install the default (ie Current) attributes first, then overlay
* all active ones.
*/
switch (get_program_mode(exec->ctx)) {
case VP_NONE:
for (attr = 0; attr < VERT_ATTRIB_FF_MAX; attr++) {
exec->vtx.inputs[attr] = &vbo->legacy_currval[attr];
}
for (attr = 0; attr < MAT_ATTRIB_MAX; attr++) {
ASSERT(VERT_ATTRIB_GENERIC(attr) < Elements(exec->vtx.inputs));
exec->vtx.inputs[VERT_ATTRIB_GENERIC(attr)] = &vbo->mat_currval[attr];
}
map = vbo->map_vp_none;
break;
case VP_NV:
case VP_ARB:
/* The aliasing of attributes for NV vertex programs has already
* occurred. NV vertex programs cannot access material values,
* nor attributes greater than VERT_ATTRIB_TEX7.
*/
for (attr = 0; attr < VERT_ATTRIB_FF_MAX; attr++) {
exec->vtx.inputs[attr] = &vbo->legacy_currval[attr];
}
for (attr = 0; attr < VERT_ATTRIB_GENERIC_MAX; attr++) {
ASSERT(VERT_ATTRIB_GENERIC(attr) < Elements(exec->vtx.inputs));
exec->vtx.inputs[VERT_ATTRIB_GENERIC(attr)] = &vbo->generic_currval[attr];
}
map = vbo->map_vp_arb;
/* check if VERT_ATTRIB_POS is not read but VERT_BIT_GENERIC0 is read.
* In that case we effectively need to route the data from
* glVertexAttrib(0, val) calls to feed into the GENERIC0 input.
*/
if ((ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_POS) == 0 &&
(ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_GENERIC0)) {
exec->vtx.inputs[VERT_ATTRIB_GENERIC0] = exec->vtx.inputs[0];
exec->vtx.attrsz[VERT_ATTRIB_GENERIC0] = exec->vtx.attrsz[0];
exec->vtx.attrptr[VERT_ATTRIB_GENERIC0] = exec->vtx.attrptr[0];
exec->vtx.attrsz[0] = 0;
}
break;
default:
assert(0);
}
/* Make all active attributes (including edgeflag) available as
* arrays of floats.
*/
for (attr = 0; attr < VERT_ATTRIB_MAX ; attr++) {
const GLuint src = map[attr];
if (exec->vtx.attrsz[src]) {
GLsizeiptr offset = (GLbyte *)exec->vtx.attrptr[src] -
(GLbyte *)exec->vtx.vertex;
/* override the default array set above */
ASSERT(attr < Elements(exec->vtx.inputs));
ASSERT(attr < Elements(exec->vtx.arrays)); /* arrays[] */
exec->vtx.inputs[attr] = &arrays[attr];
if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
/* a real buffer obj: Ptr is an offset, not a pointer*/
assert(exec->vtx.bufferobj->Pointer); /* buf should be mapped */
assert(offset >= 0);
arrays[attr].Ptr = (GLubyte *)exec->vtx.bufferobj->Offset + offset;
}
else {
/* Ptr into ordinary app memory */
arrays[attr].Ptr = (GLubyte *)exec->vtx.buffer_map + offset;
}
arrays[attr].Size = exec->vtx.attrsz[src];
arrays[attr].StrideB = exec->vtx.vertex_size * sizeof(GLfloat);
arrays[attr].Stride = exec->vtx.vertex_size * sizeof(GLfloat);
arrays[attr].Type = GL_FLOAT;
arrays[attr].Format = GL_RGBA;
arrays[attr].Enabled = 1;
arrays[attr]._ElementSize = arrays[attr].Size * sizeof(GLfloat);
_mesa_reference_buffer_object(ctx,
&arrays[attr].BufferObj,
exec->vtx.bufferobj);
arrays[attr]._MaxElement = count; /* ??? */
varying_inputs |= VERT_BIT(attr);
ctx->NewState |= _NEW_ARRAY;
}
}
_mesa_set_varying_vp_inputs( ctx, varying_inputs );
}
/**
* Treat the vertex storage as a VBO, define vertex arrays pointing
* into it:
*/
static void vbo_bind_vertex_list(struct gl_context *ctx,
const struct vbo_save_vertex_list *node)
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_save_context *save = &vbo->save;
struct gl_client_array *arrays = save->arrays;
GLuint buffer_offset = node->buffer_offset;
const GLuint *map;
GLuint attr;
GLubyte node_attrsz[VBO_ATTRIB_MAX]; /* copy of node->attrsz[] */
GLenum node_attrtype[VBO_ATTRIB_MAX]; /* copy of node->attrtype[] */
GLbitfield64 varying_inputs = 0x0;
memcpy(node_attrsz, node->attrsz, sizeof(node->attrsz));
memcpy(node_attrtype, node->attrtype, sizeof(node->attrtype));
/* Install the default (ie Current) attributes first, then overlay
* all active ones.
*/
switch (get_program_mode(ctx)) {
case VP_NONE:
for (attr = 0; attr < VERT_ATTRIB_FF_MAX; attr++) {
save->inputs[attr] = &vbo->currval[VBO_ATTRIB_POS+attr];
}
for (attr = 0; attr < MAT_ATTRIB_MAX; attr++) {
save->inputs[VERT_ATTRIB_GENERIC(attr)] =
&vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT+attr];
}
map = vbo->map_vp_none;
break;
case VP_ARB:
for (attr = 0; attr < VERT_ATTRIB_FF_MAX; attr++) {
save->inputs[attr] = &vbo->currval[VBO_ATTRIB_POS+attr];
}
for (attr = 0; attr < VERT_ATTRIB_GENERIC_MAX; attr++) {
save->inputs[VERT_ATTRIB_GENERIC(attr)] =
&vbo->currval[VBO_ATTRIB_GENERIC0+attr];
}
map = vbo->map_vp_arb;
/* check if VERT_ATTRIB_POS is not read but VERT_BIT_GENERIC0 is read.
* In that case we effectively need to route the data from
* glVertexAttrib(0, val) calls to feed into the GENERIC0 input.
*/
if ((ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_POS) == 0 &&
(ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_GENERIC0)) {
save->inputs[VERT_ATTRIB_GENERIC0] = save->inputs[0];
node_attrsz[VERT_ATTRIB_GENERIC0] = node_attrsz[0];
node_attrtype[VERT_ATTRIB_GENERIC0] = node_attrtype[0];
node_attrsz[0] = 0;
}
break;
default:
assert(0);
}
for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) {
const GLuint src = map[attr];
if (node_attrsz[src]) {
/* override the default array set above */
save->inputs[attr] = &arrays[attr];
arrays[attr].Ptr = (const GLubyte *) NULL + buffer_offset;
arrays[attr].Size = node_attrsz[src];
arrays[attr].StrideB = node->vertex_size * sizeof(GLfloat);
arrays[attr].Type = node_attrtype[src];
arrays[attr].Integer =
vbo_attrtype_to_integer_flag(node_attrtype[src]);
arrays[attr].Format = GL_RGBA;
arrays[attr]._ElementSize = arrays[attr].Size * sizeof(GLfloat);
_mesa_reference_buffer_object(ctx,
&arrays[attr].BufferObj,
node->vertex_store->bufferobj);
assert(arrays[attr].BufferObj->Name);
buffer_offset += node_attrsz[src] * sizeof(GLfloat);
varying_inputs |= VERT_BIT(attr);
}
}
_mesa_set_varying_vp_inputs( ctx, varying_inputs );
ctx->NewDriverState |= ctx->DriverFlags.NewArray;
}
/**
* Do error checking and update state for glVertex/Color/TexCoord/...Pointer
* functions.
*
* \param func name of calling function used for error reporting
* \param attrib the attribute array index to update
* \param legalTypes bitmask of *_BIT above indicating legal datatypes
* \param sizeMin min allowable size value
* \param sizeMax max allowable size value (may also be BGRA_OR_4)
* \param size components per element (1, 2, 3 or 4)
* \param type datatype of each component (GL_FLOAT, GL_INT, etc)
* \param stride stride between elements, in elements
* \param normalized are integer types converted to floats in [-1, 1]?
* \param integer integer-valued values (will not be normalized to [-1,1])
* \param ptr the address (or offset inside VBO) of the array data
*/
static void
update_array(struct gl_context *ctx,
const char *func,
GLuint attrib, GLbitfield legalTypesMask,
GLint sizeMin, GLint sizeMax,
GLint size, GLenum type, GLsizei stride,
GLboolean normalized, GLboolean integer,
const GLvoid *ptr)
{
struct gl_client_array *array;
GLbitfield typeBit;
GLsizei elementSize;
GLenum format = GL_RGBA;
if (_mesa_is_gles(ctx)) {
/* Once Mesa gets support for GL_OES_vertex_half_float this mask will
* change. Adding support for this extension isn't quite as trivial as
* we'd like because ES uses a different enum value for GL_HALF_FLOAT.
*/
legalTypesMask &= ~(FIXED_GL_BIT | HALF_BIT | DOUBLE_BIT);
/* GL_INT and GL_UNSIGNED_INT data is not allowed in OpenGL ES until
* 3.0. The 2_10_10_10 types are added in OpenGL ES 3.0 or
* GL_OES_vertex_type_10_10_10_2.
*/
if (ctx->Version < 30) {
legalTypesMask &= ~(UNSIGNED_INT_BIT
| INT_BIT
| UNSIGNED_INT_2_10_10_10_REV_BIT
| INT_2_10_10_10_REV_BIT);
}
/* BGRA ordering is not supported in ES contexts.
*/
if (sizeMax == BGRA_OR_4)
sizeMax = 4;
} else {
legalTypesMask &= ~FIXED_ES_BIT;
if (!ctx->Extensions.ARB_ES2_compatibility)
legalTypesMask &= ~FIXED_GL_BIT;
if (!ctx->Extensions.ARB_vertex_type_2_10_10_10_rev)
legalTypesMask &= ~(UNSIGNED_INT_2_10_10_10_REV_BIT |
INT_2_10_10_10_REV_BIT);
}
typeBit = type_to_bit(ctx, type);
if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) {
_mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)",
func, _mesa_lookup_enum_by_nr(type));
return;
}
/* Do size parameter checking.
* If sizeMax = BGRA_OR_4 it means that size = GL_BGRA is legal and
* must be handled specially.
*/
if (ctx->Extensions.EXT_vertex_array_bgra &&
sizeMax == BGRA_OR_4 &&
size == GL_BGRA) {
GLboolean bgra_error = GL_FALSE;
if (ctx->Extensions.ARB_vertex_type_2_10_10_10_rev) {
if (type != GL_UNSIGNED_INT_2_10_10_10_REV &&
type != GL_INT_2_10_10_10_REV &&
type != GL_UNSIGNED_BYTE)
bgra_error = GL_TRUE;
} else if (type != GL_UNSIGNED_BYTE)
bgra_error = GL_TRUE;
if (bgra_error) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(GL_BGRA/GLubyte)", func);
return;
}
format = GL_BGRA;
size = 4;
}
else if (size < sizeMin || size > sizeMax || size > 4) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size);
return;
}
if (ctx->Extensions.ARB_vertex_type_2_10_10_10_rev &&
(type == GL_UNSIGNED_INT_2_10_10_10_REV ||
type == GL_INT_2_10_10_10_REV) && size != 4) {
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(size=%d)", func, size);
return;
}
ASSERT(size <= 4);
if (stride < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride );
return;
}
if (ctx->Array.ArrayObj->ARBsemantics &&
!_mesa_is_bufferobj(ctx->Array.ArrayBufferObj)) {
/* GL_ARB_vertex_array_object requires that all arrays reside in VBOs.
* Generate GL_INVALID_OPERATION if that's not true.
*/
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(non-VBO array)", func);
return;
}
elementSize = _mesa_sizeof_type(type) * size;
array = &ctx->Array.ArrayObj->VertexAttrib[attrib];
array->Size = size;
array->Type = type;
array->Format = format;
array->Stride = stride;
array->StrideB = stride ? stride : elementSize;
array->Normalized = normalized;
array->Integer = integer;
array->Ptr = (const GLubyte *) ptr;
array->_ElementSize = elementSize;
_mesa_reference_buffer_object(ctx, &array->BufferObj,
ctx->Array.ArrayBufferObj);
ctx->NewState |= _NEW_ARRAY;
ctx->Array.ArrayObj->NewArrays |= VERT_BIT(attrib);
}
/* TODO: populate these as the vertex is defined:
*/
static void
vbo_exec_bind_arrays( struct gl_context *ctx )
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
struct gl_client_array *arrays = exec->vtx.arrays;
const GLuint *map;
GLuint attr;
GLbitfield64 varying_inputs = 0x0;
/* Install the default (ie Current) attributes first, then overlay
* all active ones.
*/
switch (get_program_mode(exec->ctx)) {
case VP_NONE:
for (attr = 0; attr < VERT_ATTRIB_FF_MAX; attr++) {
exec->vtx.inputs[attr] = &vbo->currval[VBO_ATTRIB_POS+attr];
}
for (attr = 0; attr < MAT_ATTRIB_MAX; attr++) {
ASSERT(VERT_ATTRIB_GENERIC(attr) < Elements(exec->vtx.inputs));
exec->vtx.inputs[VERT_ATTRIB_GENERIC(attr)] =
&vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT+attr];
}
map = vbo->map_vp_none;
break;
case VP_ARB:
for (attr = 0; attr < VERT_ATTRIB_FF_MAX; attr++) {
exec->vtx.inputs[attr] = &vbo->currval[VBO_ATTRIB_POS+attr];
}
for (attr = 0; attr < VERT_ATTRIB_GENERIC_MAX; attr++) {
ASSERT(VERT_ATTRIB_GENERIC(attr) < Elements(exec->vtx.inputs));
exec->vtx.inputs[VERT_ATTRIB_GENERIC(attr)] =
&vbo->currval[VBO_ATTRIB_GENERIC0+attr];
}
map = vbo->map_vp_arb;
/* check if VERT_ATTRIB_POS is not read but VERT_BIT_GENERIC0 is read.
* In that case we effectively need to route the data from
* glVertexAttrib(0, val) calls to feed into the GENERIC0 input.
*/
if ((ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_POS) == 0 &&
(ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_GENERIC0)) {
exec->vtx.inputs[VERT_ATTRIB_GENERIC0] = exec->vtx.inputs[0];
exec->vtx.attrsz[VERT_ATTRIB_GENERIC0] = exec->vtx.attrsz[0];
exec->vtx.attrptr[VERT_ATTRIB_GENERIC0] = exec->vtx.attrptr[0];
exec->vtx.attrsz[0] = 0;
}
break;
default:
assert(0);
}
for (attr = 0; attr < VERT_ATTRIB_MAX ; attr++) {
const GLuint src = map[attr];
if (exec->vtx.attrsz[src]) {
GLsizeiptr offset = (GLbyte *)exec->vtx.attrptr[src] -
(GLbyte *)exec->vtx.vertex;
/* override the default array set above */
ASSERT(attr < Elements(exec->vtx.inputs));
ASSERT(attr < Elements(exec->vtx.arrays)); /* arrays[] */
exec->vtx.inputs[attr] = &arrays[attr];
if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
/* 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 *)
exec->vtx.bufferobj->Mappings[MAP_INTERNAL].Offset + offset;
}
else {
/* Ptr into ordinary app memory */
arrays[attr].Ptr = (GLubyte *)exec->vtx.buffer_map + offset;
}
arrays[attr].Size = exec->vtx.attrsz[src];
arrays[attr].StrideB = exec->vtx.vertex_size * sizeof(GLfloat);
arrays[attr].Stride = exec->vtx.vertex_size * sizeof(GLfloat);
arrays[attr].Type = exec->vtx.attrtype[src];
arrays[attr].Integer =
vbo_attrtype_to_integer_flag(exec->vtx.attrtype[src]);
arrays[attr].Format = GL_RGBA;
arrays[attr].Enabled = 1;
arrays[attr]._ElementSize = arrays[attr].Size * sizeof(GLfloat);
_mesa_reference_buffer_object(ctx,
&arrays[attr].BufferObj,
exec->vtx.bufferobj);
varying_inputs |= VERT_BIT(attr);
}
}
_mesa_set_varying_vp_inputs( ctx, varying_inputs );
ctx->NewDriverState |= ctx->DriverFlags.NewArray;
}
/**
* Do error checking and update state for glVertex/Color/TexCoord/...Pointer
* functions.
*
* \param func name of calling function used for error reporting
* \param attrib the attribute array index to update
* \param legalTypes bitmask of *_BIT above indicating legal datatypes
* \param sizeMin min allowable size value
* \param sizeMax max allowable size value (may also be BGRA_OR_4)
* \param size components per element (1, 2, 3 or 4)
* \param type datatype of each component (GL_FLOAT, GL_INT, etc)
* \param stride stride between elements, in elements
* \param normalized are integer types converted to floats in [-1, 1]?
* \param integer integer-valued values (will not be normalized to [-1,1])
* \param ptr the address (or offset inside VBO) of the array data
*/
static void
update_array(struct gl_context *ctx,
const char *func,
GLuint attrib, GLbitfield legalTypesMask,
GLint sizeMin, GLint sizeMax,
GLint size, GLenum type, GLsizei stride,
GLboolean normalized, GLboolean integer,
const GLvoid *ptr)
{
struct gl_client_array *array;
GLbitfield typeBit;
GLsizei elementSize;
GLenum format = GL_RGBA;
if (ctx->API != API_OPENGLES && ctx->API != API_OPENGLES2) {
/* fixed point arrays / data is only allowed with OpenGL ES 1.x/2.0 */
legalTypesMask &= ~FIXED_ES_BIT;
}
if (!ctx->Extensions.ARB_ES2_compatibility) {
legalTypesMask &= ~FIXED_GL_BIT;
}
if (!ctx->Extensions.ARB_vertex_type_2_10_10_10_rev) {
legalTypesMask &= ~(UNSIGNED_INT_2_10_10_10_REV_BIT |
INT_2_10_10_10_REV_BIT);
}
typeBit = type_to_bit(ctx, type);
if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) {
_mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)",
func, _mesa_lookup_enum_by_nr(type));
return;
}
/* Do size parameter checking.
* If sizeMax = BGRA_OR_4 it means that size = GL_BGRA is legal and
* must be handled specially.
*/
if (ctx->Extensions.EXT_vertex_array_bgra &&
sizeMax == BGRA_OR_4 &&
size == GL_BGRA) {
GLboolean bgra_error = GL_FALSE;
if (ctx->Extensions.ARB_vertex_type_2_10_10_10_rev) {
if (type != GL_UNSIGNED_INT_2_10_10_10_REV &&
type != GL_INT_2_10_10_10_REV &&
type != GL_UNSIGNED_BYTE)
bgra_error = GL_TRUE;
} else if (type != GL_UNSIGNED_BYTE)
bgra_error = GL_TRUE;
if (bgra_error) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(GL_BGRA/GLubyte)", func);
return;
}
format = GL_BGRA;
size = 4;
}
else if (size < sizeMin || size > sizeMax || size > 4) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size);
return;
}
if (ctx->Extensions.ARB_vertex_type_2_10_10_10_rev &&
(type == GL_UNSIGNED_INT_2_10_10_10_REV ||
type == GL_INT_2_10_10_10_REV) && size != 4) {
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(size=%d)", func, size);
}
ASSERT(size <= 4);
if (stride < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride );
return;
}
if (ctx->Array.ArrayObj->ARBsemantics &&
!_mesa_is_bufferobj(ctx->Array.ArrayBufferObj)) {
/* GL_ARB_vertex_array_object requires that all arrays reside in VBOs.
* Generate GL_INVALID_OPERATION if that's not true.
*/
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(non-VBO array)", func);
return;
}
elementSize = _mesa_sizeof_type(type) * size;
array = &ctx->Array.ArrayObj->VertexAttrib[attrib];
array->Size = size;
array->Type = type;
array->Format = format;
array->Stride = stride;
array->StrideB = stride ? stride : elementSize;
array->Normalized = normalized;
array->Integer = integer;
array->Ptr = (const GLubyte *) ptr;
array->_ElementSize = elementSize;
_mesa_reference_buffer_object(ctx, &array->BufferObj,
ctx->Array.ArrayBufferObj);
ctx->NewState |= _NEW_ARRAY;
ctx->Array.NewState |= VERT_BIT(attrib);
}
