/*
* Try to clear one color buffer of the attached fb, either by binning a clear
* command or queuing up the clear for later (when binning is started).
*/
static boolean
lp_setup_try_clear_color_buffer(struct lp_setup_context *setup,
const union pipe_color_union *color,
unsigned cbuf)
{
union lp_rast_cmd_arg clearrb_arg;
union util_color uc;
enum pipe_format format = setup->fb.cbufs[cbuf]->format;
LP_DBG(DEBUG_SETUP, "%s state %d\n", __FUNCTION__, setup->state);
if (util_format_is_pure_integer(format)) {
/*
* We expect int/uint clear values here, though some APIs
* might disagree (but in any case util_pack_color()
* couldn't handle it)...
*/
if (util_format_is_pure_sint(format)) {
util_format_write_4i(format, color->i, 0, &uc, 0, 0, 0, 1, 1);
}
else {
assert(util_format_is_pure_uint(format));
util_format_write_4ui(format, color->ui, 0, &uc, 0, 0, 0, 1, 1);
}
}
else {
util_pack_color(color->f, format, &uc);
}
if (setup->state == SETUP_ACTIVE) {
struct lp_scene *scene = setup->scene;
/* Add the clear to existing scene. In the unusual case where
* both color and depth-stencil are being cleared when there's
* already been some rendering, we could discard the currently
* binned scene and start again, but I don't see that as being
* a common usage.
*/
struct lp_rast_clear_rb *cc_scene =
(struct lp_rast_clear_rb *)
lp_scene_alloc_aligned(scene, sizeof(struct lp_rast_clear_rb), 8);
if (!cc_scene) {
return FALSE;
}
cc_scene->cbuf = cbuf;
cc_scene->color_val = uc;
clearrb_arg.clear_rb = cc_scene;
if (!lp_scene_bin_everywhere(scene,
LP_RAST_OP_CLEAR_COLOR,
clearrb_arg))
return FALSE;
}
else {
/* Put ourselves into the 'pre-clear' state, specifically to try
* and accumulate multiple clears to color and depth_stencil
* buffers which the app or state-tracker might issue
* separately.
*/
set_scene_state( setup, SETUP_CLEARED, __FUNCTION__ );
assert(PIPE_CLEAR_COLOR0 == (1 << 2));
setup->clear.flags |= 1 << (cbuf + 2);
setup->clear.color_val[cbuf] = uc;
}
return TRUE;
}
/**
* Called by vbuf code when we're about to draw something.
*/
static boolean
try_update_scene_state( struct lp_setup_context *setup )
{
boolean new_scene = (setup->fs.stored == NULL);
struct lp_scene *scene = setup->scene;
assert(scene);
if(setup->dirty & LP_SETUP_NEW_BLEND_COLOR) {
uint8_t *stored;
unsigned i, j;
stored = lp_scene_alloc_aligned(scene, 4 * 16, 16);
if (!stored) {
assert(!new_scene);
return FALSE;
}
/* smear each blend color component across 16 ubyte elements */
for (i = 0; i < 4; ++i) {
uint8_t c = float_to_ubyte(setup->blend_color.current.color[i]);
for (j = 0; j < 16; ++j)
stored[i*16 + j] = c;
}
setup->blend_color.stored = stored;
setup->fs.current.jit_context.blend_color = setup->blend_color.stored;
setup->dirty |= LP_SETUP_NEW_FS;
}
if(setup->dirty & LP_SETUP_NEW_CONSTANTS) {
struct pipe_resource *buffer = setup->constants.current;
if(buffer) {
unsigned current_size = buffer->width0;
const void *current_data = llvmpipe_resource_data(buffer);
/* TODO: copy only the actually used constants? */
if(setup->constants.stored_size != current_size ||
!setup->constants.stored_data ||
memcmp(setup->constants.stored_data,
current_data,
current_size) != 0) {
void *stored;
stored = lp_scene_alloc(scene, current_size);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(stored,
current_data,
current_size);
setup->constants.stored_size = current_size;
setup->constants.stored_data = stored;
}
}
else {
setup->constants.stored_size = 0;
setup->constants.stored_data = NULL;
}
setup->fs.current.jit_context.constants = setup->constants.stored_data;
setup->dirty |= LP_SETUP_NEW_FS;
}
if (setup->dirty & LP_SETUP_NEW_FS) {
if (!setup->fs.stored ||
memcmp(setup->fs.stored,
&setup->fs.current,
sizeof setup->fs.current) != 0)
{
struct lp_rast_state *stored;
uint i;
/* The fs state that's been stored in the scene is different from
* the new, current state. So allocate a new lp_rast_state object
* and append it to the bin's setup data buffer.
*/
stored = (struct lp_rast_state *) lp_scene_alloc(scene, sizeof *stored);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(stored,
&setup->fs.current,
sizeof setup->fs.current);
setup->fs.stored = stored;
/* The scene now references the textures in the rasterization
* state record. Note that now.
*/
for (i = 0; i < Elements(setup->fs.current_tex); i++) {
if (setup->fs.current_tex[i]) {
if (!lp_scene_add_resource_reference(scene,
setup->fs.current_tex[i],
new_scene)) {
assert(!new_scene);
return FALSE;
}
}
}
}
}
if (setup->dirty & LP_SETUP_NEW_SCISSOR) {
setup->draw_region = setup->framebuffer;
if (setup->scissor_test) {
u_rect_possible_intersection(&setup->scissor,
&setup->draw_region);
}
}
setup->dirty = 0;
assert(setup->fs.stored);
return TRUE;
}
/**
* Called by vbuf code when we're about to draw something.
*
* This function stores all dirty state in the current scene's display list
* memory, via lp_scene_alloc(). We can not pass pointers of mutable state to
* the JIT functions, as the JIT functions will be called later on, most likely
* on a different thread.
*
* When processing dirty state it is imperative that we don't refer to any
* pointers previously allocated with lp_scene_alloc() in this function (or any
* function) as they may belong to a scene freed since then.
*/
static boolean
try_update_scene_state( struct lp_setup_context *setup )
{
static const float fake_const_buf[4];
boolean new_scene = (setup->fs.stored == NULL);
struct lp_scene *scene = setup->scene;
unsigned i;
assert(scene);
if (setup->dirty & LP_SETUP_NEW_VIEWPORTS) {
/*
* Record new depth range state for changes due to viewport updates.
*
* TODO: Collapse the existing viewport and depth range information
* into one structure, for access by JIT.
*/
struct lp_jit_viewport *stored;
stored = (struct lp_jit_viewport *)
lp_scene_alloc(scene, sizeof setup->viewports);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(stored, setup->viewports, sizeof setup->viewports);
setup->fs.current.jit_context.viewports = stored;
setup->dirty |= LP_SETUP_NEW_FS;
}
if(setup->dirty & LP_SETUP_NEW_BLEND_COLOR) {
uint8_t *stored;
float* fstored;
unsigned i, j;
unsigned size;
/* Alloc u8_blend_color (16 x i8) and f_blend_color (4 or 8 x f32) */
size = 4 * 16 * sizeof(uint8_t);
size += (LP_MAX_VECTOR_LENGTH / 4) * sizeof(float);
stored = lp_scene_alloc_aligned(scene, size, LP_MIN_VECTOR_ALIGN);
if (!stored) {
assert(!new_scene);
return FALSE;
}
/* Store floating point colour */
fstored = (float*)(stored + 4*16);
for (i = 0; i < (LP_MAX_VECTOR_LENGTH / 4); ++i) {
fstored[i] = setup->blend_color.current.color[i % 4];
}
/* smear each blend color component across 16 ubyte elements */
for (i = 0; i < 4; ++i) {
uint8_t c = float_to_ubyte(setup->blend_color.current.color[i]);
for (j = 0; j < 16; ++j)
stored[i*16 + j] = c;
}
setup->blend_color.stored = stored;
setup->fs.current.jit_context.u8_blend_color = stored;
setup->fs.current.jit_context.f_blend_color = fstored;
setup->dirty |= LP_SETUP_NEW_FS;
}
if (setup->dirty & LP_SETUP_NEW_CONSTANTS) {
for (i = 0; i < ARRAY_SIZE(setup->constants); ++i) {
struct pipe_resource *buffer = setup->constants[i].current.buffer;
const unsigned current_size = MIN2(setup->constants[i].current.buffer_size,
LP_MAX_TGSI_CONST_BUFFER_SIZE);
const ubyte *current_data = NULL;
int num_constants;
STATIC_ASSERT(DATA_BLOCK_SIZE >= LP_MAX_TGSI_CONST_BUFFER_SIZE);
if (buffer) {
/* resource buffer */
current_data = (ubyte *) llvmpipe_resource_data(buffer);
}
else if (setup->constants[i].current.user_buffer) {
/* user-space buffer */
current_data = (ubyte *) setup->constants[i].current.user_buffer;
}
if (current_data) {
current_data += setup->constants[i].current.buffer_offset;
/* TODO: copy only the actually used constants? */
if (setup->constants[i].stored_size != current_size ||
!setup->constants[i].stored_data ||
memcmp(setup->constants[i].stored_data,
current_data,
current_size) != 0) {
void *stored;
stored = lp_scene_alloc(scene, current_size);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(stored,
current_data,
current_size);
setup->constants[i].stored_size = current_size;
setup->constants[i].stored_data = stored;
}
setup->fs.current.jit_context.constants[i] =
setup->constants[i].stored_data;
}
else {
setup->constants[i].stored_size = 0;
setup->constants[i].stored_data = NULL;
setup->fs.current.jit_context.constants[i] = fake_const_buf;
}
num_constants =
setup->constants[i].stored_size / (sizeof(float) * 4);
setup->fs.current.jit_context.num_constants[i] = num_constants;
setup->dirty |= LP_SETUP_NEW_FS;
}
}
if (setup->dirty & LP_SETUP_NEW_FS) {
if (!setup->fs.stored ||
memcmp(setup->fs.stored,
&setup->fs.current,
sizeof setup->fs.current) != 0)
{
struct lp_rast_state *stored;
/* The fs state that's been stored in the scene is different from
* the new, current state. So allocate a new lp_rast_state object
* and append it to the bin's setup data buffer.
*/
stored = (struct lp_rast_state *) lp_scene_alloc(scene, sizeof *stored);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(stored,
&setup->fs.current,
sizeof setup->fs.current);
setup->fs.stored = stored;
/* The scene now references the textures in the rasterization
* state record. Note that now.
*/
for (i = 0; i < ARRAY_SIZE(setup->fs.current_tex); i++) {
if (setup->fs.current_tex[i]) {
if (!lp_scene_add_resource_reference(scene,
setup->fs.current_tex[i],
new_scene)) {
assert(!new_scene);
return FALSE;
}
}
}
}
}
if (setup->dirty & LP_SETUP_NEW_SCISSOR) {
unsigned i;
for (i = 0; i < PIPE_MAX_VIEWPORTS; ++i) {
setup->draw_regions[i] = setup->framebuffer;
if (setup->scissor_test) {
u_rect_possible_intersection(&setup->scissors[i],
&setup->draw_regions[i]);
}
}
}
setup->dirty = 0;
assert(setup->fs.stored);
return TRUE;
}
/**
* Called by vbuf code when we're about to draw something.
*/
static boolean
try_update_scene_state( struct lp_setup_context *setup )
{
boolean new_scene = (setup->fs.stored == NULL);
struct lp_scene *scene = setup->scene;
unsigned i;
assert(scene);
if(setup->dirty & LP_SETUP_NEW_BLEND_COLOR) {
uint8_t *stored;
float* fstored;
unsigned i, j;
unsigned size;
/* Alloc u8_blend_color (16 x i8) and f_blend_color (4 or 8 x f32) */
size = 4 * 16 * sizeof(uint8_t);
size += (LP_MAX_VECTOR_LENGTH / 4) * sizeof(float);
stored = lp_scene_alloc_aligned(scene, size, LP_MAX_VECTOR_LENGTH);
if (!stored) {
assert(!new_scene);
return FALSE;
}
/* Store floating point colour */
fstored = (float*)(stored + 4*16);
for (i = 0; i < (LP_MAX_VECTOR_LENGTH / 4); ++i) {
fstored[i] = setup->blend_color.current.color[i % 4];
}
/* smear each blend color component across 16 ubyte elements */
for (i = 0; i < 4; ++i) {
uint8_t c = float_to_ubyte(setup->blend_color.current.color[i]);
for (j = 0; j < 16; ++j)
stored[i*16 + j] = c;
}
setup->blend_color.stored = stored;
setup->fs.current.jit_context.u8_blend_color = stored;
setup->fs.current.jit_context.f_blend_color = fstored;
setup->dirty |= LP_SETUP_NEW_FS;
}
if (setup->dirty & LP_SETUP_NEW_CONSTANTS) {
for (i = 0; i < Elements(setup->constants); ++i) {
struct pipe_resource *buffer = setup->constants[i].current.buffer;
const unsigned current_size = setup->constants[i].current.buffer_size;
const ubyte *current_data = NULL;
if (buffer) {
/* resource buffer */
current_data = (ubyte *) llvmpipe_resource_data(buffer);
}
else if (setup->constants[i].current.user_buffer) {
/* user-space buffer */
current_data = (ubyte *) setup->constants[i].current.user_buffer;
}
if (current_data) {
current_data += setup->constants[i].current.buffer_offset;
/* TODO: copy only the actually used constants? */
if (setup->constants[i].stored_size != current_size ||
!setup->constants[i].stored_data ||
memcmp(setup->constants[i].stored_data,
current_data,
current_size) != 0) {
void *stored;
stored = lp_scene_alloc(scene, current_size);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(stored,
current_data,
current_size);
setup->constants[i].stored_size = current_size;
setup->constants[i].stored_data = stored;
}
}
else {
setup->constants[i].stored_size = 0;
setup->constants[i].stored_data = NULL;
}
setup->fs.current.jit_context.constants[i] = setup->constants[i].stored_data;
setup->dirty |= LP_SETUP_NEW_FS;
}
}
if (setup->dirty & LP_SETUP_NEW_FS) {
if (!setup->fs.stored ||
memcmp(setup->fs.stored,
&setup->fs.current,
sizeof setup->fs.current) != 0)
{
struct lp_rast_state *stored;
/* The fs state that's been stored in the scene is different from
* the new, current state. So allocate a new lp_rast_state object
* and append it to the bin's setup data buffer.
*/
stored = (struct lp_rast_state *) lp_scene_alloc(scene, sizeof *stored);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(stored,
&setup->fs.current,
sizeof setup->fs.current);
setup->fs.stored = stored;
/* The scene now references the textures in the rasterization
* state record. Note that now.
*/
for (i = 0; i < Elements(setup->fs.current_tex); i++) {
if (setup->fs.current_tex[i]) {
if (!lp_scene_add_resource_reference(scene,
setup->fs.current_tex[i],
new_scene)) {
assert(!new_scene);
return FALSE;
}
}
}
}
}
if (setup->dirty & LP_SETUP_NEW_SCISSOR) {
setup->draw_region = setup->framebuffer;
if (setup->scissor_test) {
u_rect_possible_intersection(&setup->scissor,
&setup->draw_region);
}
}
setup->dirty = 0;
assert(setup->fs.stored);
return TRUE;
}