void vbo_exec_init( struct gl_context *ctx )
{
struct vbo_exec_context *exec = &vbo_context(ctx)->exec;
exec->ctx = ctx;
/* Initialize the arrayelt helper
*/
if (!ctx->aelt_context &&
!_ae_create_context( ctx ))
return;
vbo_exec_vtx_init( exec );
ctx->Driver.NeedFlush = 0;
ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;
ctx->Driver.BeginVertices = vbo_exec_BeginVertices;
ctx->Driver.FlushVertices = vbo_exec_FlushVertices;
vbo_exec_invalidate_state( ctx, ~0 );
}
void _vbo_InvalidateState( struct gl_context *ctx, GLuint new_state )
{
vbo_exec_invalidate_state(ctx, new_state);
}
void _vbo_InvalidateState( GLcontext *ctx, GLuint new_state )
{
_ae_invalidate_state(ctx, new_state);
vbo_exec_invalidate_state(ctx, new_state);
}
/**
* Compute derived GL state.
* If __struct gl_contextRec::NewState is non-zero then this function \b must
* be called before rendering anything.
*
* Calls dd_function_table::UpdateState to perform any internal state
* management necessary.
*
* \sa _mesa_update_modelview_project(), _mesa_update_texture(),
* _mesa_update_buffer_bounds(),
* _mesa_update_lighting() and _mesa_update_tnl_spaces().
*/
void
_mesa_update_state_locked( struct gl_context *ctx )
{
GLbitfield new_state = ctx->NewState;
GLbitfield new_prog_state = 0x0;
const GLbitfield computed_states = ~(_NEW_CURRENT_ATTRIB | _NEW_LINE);
/* we can skip a bunch of state validation checks if the dirty
* state matches one or more bits in 'computed_states'.
*/
if ((new_state & computed_states) == 0)
goto out;
if (MESA_VERBOSE & VERBOSE_STATE)
_mesa_print_state("_mesa_update_state", new_state);
if (new_state & _NEW_BUFFERS)
_mesa_update_framebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer);
/* Handle Core and Compatibility contexts separately. */
if (ctx->API == API_OPENGL_COMPAT ||
ctx->API == API_OPENGLES) {
GLbitfield prog_flags = _NEW_PROGRAM;
/* Determine which state flags effect vertex/fragment program state */
if (ctx->FragmentProgram._MaintainTexEnvProgram) {
prog_flags |= (_NEW_BUFFERS | _NEW_TEXTURE_OBJECT | _NEW_FOG |
_NEW_VARYING_VP_INPUTS | _NEW_LIGHT | _NEW_POINT |
_NEW_RENDERMODE | _NEW_PROGRAM | _NEW_FRAG_CLAMP |
_NEW_COLOR | _NEW_TEXTURE_STATE);
}
if (ctx->VertexProgram._MaintainTnlProgram) {
prog_flags |= (_NEW_VARYING_VP_INPUTS | _NEW_TEXTURE_OBJECT |
_NEW_TEXTURE_MATRIX | _NEW_TRANSFORM | _NEW_POINT |
_NEW_FOG | _NEW_LIGHT | _NEW_TEXTURE_STATE |
_MESA_NEW_NEED_EYE_COORDS);
}
/*
* Now update derived state info
*/
if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION))
_mesa_update_modelview_project( ctx, new_state );
if (new_state & _NEW_TEXTURE_MATRIX)
_mesa_update_texture_matrices(ctx);
if (new_state & (_NEW_TEXTURE_OBJECT | _NEW_TEXTURE_STATE | _NEW_PROGRAM))
_mesa_update_texture_state(ctx);
if (new_state & _NEW_LIGHT)
_mesa_update_lighting(ctx);
if (new_state & _NEW_PIXEL)
_mesa_update_pixel( ctx );
/* ctx->_NeedEyeCoords is now up to date.
*
* If the truth value of this variable has changed, update for the
* new lighting space and recompute the positions of lights and the
* normal transform.
*
* If the lighting space hasn't changed, may still need to recompute
* light positions & normal transforms for other reasons.
*/
if (new_state & _MESA_NEW_NEED_EYE_COORDS)
_mesa_update_tnl_spaces( ctx, new_state );
if (new_state & prog_flags) {
/* When we generate programs from fixed-function vertex/fragment state
* this call may generate/bind a new program. If so, we need to
* propogate the _NEW_PROGRAM flag to the driver.
*/
new_prog_state |= update_program(ctx);
}
} else {
/* GL Core and GLES 2/3 contexts */
if (new_state & (_NEW_TEXTURE_OBJECT | _NEW_PROGRAM))
_mesa_update_texture_state(ctx);
if (new_state & _NEW_PROGRAM)
update_program(ctx);
}
out:
new_prog_state |= update_program_constants(ctx);
ctx->NewState |= new_prog_state;
vbo_exec_invalidate_state(ctx);
/*
* Give the driver a chance to act upon the new_state flags.
* The driver might plug in different span functions, for example.
* Also, this is where the driver can invalidate the state of any
* active modules (such as swrast_setup, swrast, tnl, etc).
*/
ctx->Driver.UpdateState(ctx);
ctx->NewState = 0;
}
