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perf: Enable 512KB LVGL image cache on PSRAM and move modified lvgl to local components

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This commit is contained in:
Adolfo Reyna
2026-07-09 22:27:55 -04:00
parent df93252281
commit c4ec7ead55
3999 changed files with 813776 additions and 0 deletions
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components/lvgl__lvgl/src/draw/opengles/lv_draw_opengles.c
+634
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@@ -0,0 +1,634 @@
/**
* @file lv_draw_opengles.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_draw_opengles.h"
#if LV_USE_DRAW_OPENGLES
#include "../lv_draw_private.h"
#include "../../misc/cache/lv_cache_entry_private.h"
#include "../../drivers/glfw/lv_opengles_debug.h"
#include "../../drivers/glfw/lv_opengles_texture.h"
#include "../../drivers/glfw/lv_opengles_driver.h"
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#include "../../draw/lv_draw_label.h"
#include "../../draw/lv_draw_rect.h"
#include "../../draw/lv_draw_arc.h"
#include "../../draw/lv_draw_image.h"
#include "../../draw/lv_draw_triangle.h"
#include "../../draw/lv_draw_line.h"
#include "../../draw/lv_draw_3d.h"
#include "../../core/lv_obj.h"
#include "../../core/lv_refr_private.h"
#include "../../display/lv_display_private.h"
#include "../../stdlib/lv_string.h"
#include "../../misc/lv_area_private.h"
/*********************
* DEFINES
*********************/
#define DRAW_UNIT_ID_OPENGLES 6
/**********************
* TYPEDEFS
**********************/
typedef struct {
lv_draw_unit_t base_unit;
lv_draw_task_t * task_act;
lv_cache_t * texture_cache;
unsigned int framebuffer;
lv_draw_buf_t render_draw_buf;
} lv_draw_opengles_unit_t;
typedef struct {
lv_draw_dsc_base_t * draw_dsc;
int32_t w;
int32_t h;
unsigned int texture;
} cache_data_t;
/**********************
* STATIC PROTOTYPES
**********************/
static bool opengles_texture_cache_create_cb(cache_data_t * cached_data, void * user_data);
static void opengles_texture_cache_free_cb(cache_data_t * cached_data, void * user_data);
static lv_cache_compare_res_t opengles_texture_cache_compare_cb(const cache_data_t * lhs, const cache_data_t * rhs);
static void blend_texture_layer(lv_draw_task_t * t);
static void draw_from_cached_texture(lv_draw_task_t * t);
static void execute_drawing(lv_draw_opengles_unit_t * u);
static int32_t dispatch(lv_draw_unit_t * draw_unit, lv_layer_t * layer);
static int32_t evaluate(lv_draw_unit_t * draw_unit, lv_draw_task_t * task);
static bool draw_to_texture(lv_draw_opengles_unit_t * u, cache_data_t * cache_data);
static unsigned int layer_get_texture(lv_layer_t * layer);
static unsigned int get_framebuffer(lv_draw_opengles_unit_t * u);
static unsigned int create_texture(int32_t w, int32_t h, const void * data);
#if LV_USE_3DTEXTURE
static void lv_draw_opengles_3d(lv_draw_task_t * t, const lv_draw_3d_dsc_t * dsc, const lv_area_t * coords);
#endif
/**********************
* STATIC VARIABLES
**********************/
static lv_draw_opengles_unit_t * g_unit;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void lv_draw_opengles_init(void)
{
lv_draw_opengles_unit_t * draw_opengles_unit = lv_draw_create_unit(sizeof(lv_draw_opengles_unit_t));
draw_opengles_unit->base_unit.dispatch_cb = dispatch;
draw_opengles_unit->base_unit.evaluate_cb = evaluate;
draw_opengles_unit->base_unit.name = "OPENGLES";
draw_opengles_unit->texture_cache = lv_cache_create(&lv_cache_class_lru_rb_count,
sizeof(cache_data_t), 128, (lv_cache_ops_t) {
.compare_cb = (lv_cache_compare_cb_t)opengles_texture_cache_compare_cb,
.create_cb = (lv_cache_create_cb_t)opengles_texture_cache_create_cb,
.free_cb = (lv_cache_free_cb_t)opengles_texture_cache_free_cb,
});
lv_cache_set_name(draw_opengles_unit->texture_cache, "OPENGLES_TEXTURE");
lv_draw_buf_init(&draw_opengles_unit->render_draw_buf, 0, 0, LV_COLOR_FORMAT_ARGB8888, LV_STRIDE_AUTO, NULL, 0);
g_unit = draw_opengles_unit;
}
void lv_draw_opengles_deinit(void)
{
lv_free(g_unit->render_draw_buf.unaligned_data);
lv_cache_destroy(g_unit->texture_cache, g_unit);
if(g_unit->framebuffer != 0) {
GL_CALL(glBindFramebuffer(GL_FRAMEBUFFER, 0));
GL_CALL(glDeleteFramebuffers(1, &g_unit->framebuffer));
}
g_unit = NULL;
}
/**********************
* STATIC FUNCTIONS
**********************/
static bool opengles_texture_cache_create_cb(cache_data_t * cached_data, void * user_data)
{
return draw_to_texture((lv_draw_opengles_unit_t *)user_data, cached_data);
}
static void opengles_texture_cache_free_cb(cache_data_t * cached_data, void * user_data)
{
LV_UNUSED(user_data);
lv_free(cached_data->draw_dsc);
GL_CALL(glDeleteTextures(1, &cached_data->texture));
cached_data->draw_dsc = NULL;
cached_data->texture = 0;
}
static lv_cache_compare_res_t opengles_texture_cache_compare_cb(const cache_data_t * lhs, const cache_data_t * rhs)
{
if(lhs == rhs) return 0;
if(lhs->w != rhs->w) {
return lhs->w > rhs->w ? 1 : -1;
}
if(lhs->h != rhs->h) {
return lhs->h > rhs->h ? 1 : -1;
}
uint32_t lhs_dsc_size = lhs->draw_dsc->dsc_size;
uint32_t rhs_dsc_size = rhs->draw_dsc->dsc_size;
if(lhs_dsc_size != rhs_dsc_size) {
return lhs_dsc_size > rhs_dsc_size ? 1 : -1;
}
const uint8_t * left_draw_dsc = (const uint8_t *)lhs->draw_dsc;
const uint8_t * right_draw_dsc = (const uint8_t *)rhs->draw_dsc;
left_draw_dsc += sizeof(lv_draw_dsc_base_t);
right_draw_dsc += sizeof(lv_draw_dsc_base_t);
int cmp_res = lv_memcmp(left_draw_dsc, right_draw_dsc, lhs->draw_dsc->dsc_size - sizeof(lv_draw_dsc_base_t));
if(cmp_res != 0) {
return cmp_res > 0 ? 1 : -1;
}
return 0;
}
static int32_t dispatch(lv_draw_unit_t * draw_unit, lv_layer_t * layer)
{
lv_draw_opengles_unit_t * draw_opengles_unit = (lv_draw_opengles_unit_t *) draw_unit;
/*Return immediately if it's busy with a draw task*/
if(draw_opengles_unit->task_act) return 0;
lv_draw_task_t * t = NULL;
t = lv_draw_get_available_task(layer, NULL, DRAW_UNIT_ID_OPENGLES);
if(t == NULL) return -1;
unsigned int texture = layer_get_texture(layer);
if(texture == 0) {
lv_display_t * disp = lv_refr_get_disp_refreshing();
if(layer != disp->layer_head) {
void * buf = lv_draw_layer_alloc_buf(layer);
if(buf == NULL) return -1;
int32_t w = lv_area_get_width(&layer->buf_area);
int32_t h = lv_area_get_height(&layer->buf_area);
texture = create_texture(w, h, NULL);
layer->user_data = (void *)(uintptr_t)texture;
}
else {
layer->user_data = (void *)(uintptr_t)lv_opengles_texture_get_texture_id(disp);
}
}
t->state = LV_DRAW_TASK_STATE_IN_PROGRESS;
draw_opengles_unit->task_act = t;
execute_drawing(draw_opengles_unit);
draw_opengles_unit->task_act->state = LV_DRAW_TASK_STATE_READY;
draw_opengles_unit->task_act = NULL;
/*The draw unit is free now. Request a new dispatching as it can get a new task*/
lv_draw_dispatch_request();
return 1;
}
static int32_t evaluate(lv_draw_unit_t * draw_unit, lv_draw_task_t * task)
{
LV_UNUSED(draw_unit);
if(task->type == LV_DRAW_TASK_TYPE_IMAGE &&
((lv_draw_image_dsc_t *)task->draw_dsc)->header.cf >= LV_COLOR_FORMAT_PROPRIETARY_START) {
return 0;
}
/*If not refreshing the display probably it's a canvas rendering
*which his not supported in OpenGL as it's not a texture.*/
if(lv_refr_get_disp_refreshing() == NULL) return 0;
if(((lv_draw_dsc_base_t *)task->draw_dsc)->user_data == NULL) {
task->preference_score = 0;
task->preferred_draw_unit_id = DRAW_UNIT_ID_OPENGLES;
}
return 0;
}
static bool draw_to_texture(lv_draw_opengles_unit_t * u, cache_data_t * cache_data)
{
lv_draw_task_t * task = u->task_act;
lv_layer_t dest_layer;
lv_layer_init(&dest_layer);
int32_t texture_w = lv_area_get_width(&task->_real_area);
int32_t texture_h = lv_area_get_height(&task->_real_area);
if(NULL == lv_draw_buf_reshape(&u->render_draw_buf, LV_COLOR_FORMAT_ARGB8888, texture_w, texture_h, LV_STRIDE_AUTO)) {
uint8_t * data = u->render_draw_buf.unaligned_data;
uint32_t data_size = LV_DRAW_BUF_SIZE(texture_w, texture_h, LV_COLOR_FORMAT_ARGB8888);
data = lv_realloc(data, data_size);
LV_ASSERT_MALLOC(data);
lv_result_t init_result = lv_draw_buf_init(&u->render_draw_buf, texture_w, texture_h, LV_COLOR_FORMAT_ARGB8888,
LV_STRIDE_AUTO, data, data_size);
LV_ASSERT(init_result == LV_RESULT_OK);
}
dest_layer.draw_buf = &u->render_draw_buf;
dest_layer.color_format = LV_COLOR_FORMAT_ARGB8888;
dest_layer.buf_area = task->_real_area;
dest_layer._clip_area = task->_real_area;
dest_layer.phy_clip_area = task->_real_area;
lv_memzero(u->render_draw_buf.data, lv_area_get_size(&task->_real_area) * 4);
lv_display_t * disp = lv_refr_get_disp_refreshing();
lv_obj_t * obj = ((lv_draw_dsc_base_t *)task->draw_dsc)->obj;
bool original_send_draw_task_event = false;
if(obj) {
original_send_draw_task_event = lv_obj_has_flag(obj, LV_OBJ_FLAG_SEND_DRAW_TASK_EVENTS);
lv_obj_remove_flag(obj, LV_OBJ_FLAG_SEND_DRAW_TASK_EVENTS);
}
lv_draw_dsc_base_t * base_dsc = task->draw_dsc;
cache_data->draw_dsc = lv_malloc(base_dsc->dsc_size);
lv_memcpy((void *)cache_data->draw_dsc, base_dsc, base_dsc->dsc_size);
switch(task->type) {
case LV_DRAW_TASK_TYPE_FILL: {
lv_draw_fill_dsc_t * fill_dsc = task->draw_dsc;
lv_draw_rect_dsc_t rect_dsc;
lv_draw_rect_dsc_init(&rect_dsc);
rect_dsc.base.user_data = (void *)(uintptr_t)1;
rect_dsc.bg_color = fill_dsc->color;
rect_dsc.bg_grad = fill_dsc->grad;
rect_dsc.radius = fill_dsc->radius;
rect_dsc.bg_opa = fill_dsc->opa;
lv_draw_rect(&dest_layer, &rect_dsc, &task->area);
}
break;
case LV_DRAW_TASK_TYPE_BORDER: {
lv_draw_border_dsc_t * border_dsc = task->draw_dsc;
lv_draw_rect_dsc_t rect_dsc;
lv_draw_rect_dsc_init(&rect_dsc);
rect_dsc.base.user_data = (void *)(uintptr_t)1;
rect_dsc.bg_opa = LV_OPA_TRANSP;
rect_dsc.radius = border_dsc->radius;
rect_dsc.border_color = border_dsc->color;
rect_dsc.border_opa = border_dsc->opa;
rect_dsc.border_side = border_dsc->side;
rect_dsc.border_width = border_dsc->width;
lv_draw_rect(&dest_layer, &rect_dsc, &task->area);
break;
}
case LV_DRAW_TASK_TYPE_BOX_SHADOW: {
lv_draw_box_shadow_dsc_t * box_shadow_dsc = task->draw_dsc;
lv_draw_rect_dsc_t rect_dsc;
lv_draw_rect_dsc_init(&rect_dsc);
rect_dsc.base.user_data = (void *)(uintptr_t)1;
rect_dsc.bg_opa = LV_OPA_0;
rect_dsc.radius = box_shadow_dsc->radius;
rect_dsc.bg_color = box_shadow_dsc->color;
rect_dsc.shadow_opa = box_shadow_dsc->opa;
rect_dsc.shadow_width = box_shadow_dsc->width;
rect_dsc.shadow_spread = box_shadow_dsc->spread;
rect_dsc.shadow_offset_x = box_shadow_dsc->ofs_x;
rect_dsc.shadow_offset_y = box_shadow_dsc->ofs_y;
lv_draw_rect(&dest_layer, &rect_dsc, &task->area);
break;
}
case LV_DRAW_TASK_TYPE_LABEL: {
lv_draw_label_dsc_t label_dsc;
lv_memcpy(&label_dsc, task->draw_dsc, sizeof(label_dsc));
label_dsc.base.user_data = (void *)(uintptr_t)1;
lv_draw_label(&dest_layer, &label_dsc, &task->area);
}
break;
case LV_DRAW_TASK_TYPE_ARC: {
lv_draw_arc_dsc_t arc_dsc;
lv_memcpy(&arc_dsc, task->draw_dsc, sizeof(arc_dsc));
arc_dsc.base.user_data = (void *)(uintptr_t)1;
lv_draw_arc(&dest_layer, &arc_dsc);
}
break;
case LV_DRAW_TASK_TYPE_LINE: {
lv_draw_line_dsc_t line_dsc;
lv_memcpy(&line_dsc, task->draw_dsc, sizeof(line_dsc));
line_dsc.base.user_data = (void *)(uintptr_t)1;
lv_draw_line(&dest_layer, &line_dsc);
}
break;
case LV_DRAW_TASK_TYPE_TRIANGLE: {
lv_draw_triangle_dsc_t triangle_dsc;
lv_memcpy(&triangle_dsc, task->draw_dsc, sizeof(triangle_dsc));
triangle_dsc.base.user_data = (void *)(uintptr_t)1;
lv_draw_triangle(&dest_layer, &triangle_dsc);
}
break;
case LV_DRAW_TASK_TYPE_IMAGE: {
lv_draw_image_dsc_t image_dsc;
lv_memcpy(&image_dsc, task->draw_dsc, sizeof(image_dsc));
image_dsc.base.user_data = (void *)(uintptr_t)1;
lv_draw_image(&dest_layer, &image_dsc, &task->area);
break;
}
default:
/*The malloced cache_data->draw_dsc will be freed automatically on failure
*in opengles_texture_cache_free_cb*/
return false;
}
while(dest_layer.draw_task_head) {
lv_draw_dispatch_layer(disp, &dest_layer);
if(dest_layer.draw_task_head) {
lv_draw_dispatch_wait_for_request();
}
}
unsigned int texture = create_texture(texture_w, texture_h, u->render_draw_buf.data);
cache_data->w = texture_w;
cache_data->h = texture_h;
cache_data->texture = texture;
if(obj) {
lv_obj_set_flag(obj, LV_OBJ_FLAG_SEND_DRAW_TASK_EVENTS, original_send_draw_task_event);
}
return true;
}
static void blend_texture_layer(lv_draw_task_t * t)
{
lv_draw_image_dsc_t * draw_dsc = t->draw_dsc;
lv_draw_opengles_unit_t * u = (lv_draw_opengles_unit_t *)t->draw_unit;
lv_area_t area;
area.x1 = -draw_dsc->pivot.x;
area.y1 = -draw_dsc->pivot.y;
area.x1 = (area.x1 * draw_dsc->scale_x) / 256;
area.y1 = (area.y1 * draw_dsc->scale_y) / 256;
area.x1 += t->area.x1 + draw_dsc->pivot.x;
area.y1 += t->area.y1 + draw_dsc->pivot.y;
lv_area_set_width(&area, lv_area_get_width(&t->area) * draw_dsc->scale_x / 256);
lv_area_set_height(&area, lv_area_get_height(&t->area) * draw_dsc->scale_y / 256);
lv_layer_t * src_layer = (lv_layer_t *)draw_dsc->src;
unsigned int src_texture = layer_get_texture(src_layer);
lv_layer_t * dest_layer = t->target_layer;
unsigned int target_texture = layer_get_texture(dest_layer);
LV_ASSERT(target_texture != 0);
int32_t targ_tex_w = lv_area_get_width(&dest_layer->buf_area);
int32_t targ_tex_h = lv_area_get_height(&dest_layer->buf_area);
GL_CALL(glBindTexture(GL_TEXTURE_2D, target_texture));
unsigned int framebuffer = get_framebuffer(u);
GL_CALL(glBindFramebuffer(GL_FRAMEBUFFER, framebuffer));
GL_CALL(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, target_texture, 0));
lv_opengles_viewport(0, 0, targ_tex_w, targ_tex_h);
// TODO rotation
lv_opengles_render_texture(src_texture, &area, draw_dsc->opa, targ_tex_w, targ_tex_h, &t->clip_area, false);
GL_CALL(glBindFramebuffer(GL_FRAMEBUFFER, 0));
GL_CALL(glBindTexture(GL_TEXTURE_2D, 0));
GL_CALL(glDeleteTextures(1, &src_texture));
}
static void draw_from_cached_texture(lv_draw_task_t * t)
{
lv_draw_opengles_unit_t * u = (lv_draw_opengles_unit_t *)t->draw_unit;
cache_data_t data_to_find;
data_to_find.draw_dsc = (lv_draw_dsc_base_t *)t->draw_dsc;
data_to_find.w = lv_area_get_width(&t->_real_area);
data_to_find.h = lv_area_get_height(&t->_real_area);
data_to_find.texture = 0;
/*user_data stores the renderer to differentiate it from SW rendered tasks.
*However the cached texture is independent from the renderer so use NULL user_data*/
void * user_data_saved = data_to_find.draw_dsc->user_data;
data_to_find.draw_dsc->user_data = NULL;
/*img_dsc->image_area is an absolute coordinate so it's different
*for the same image on a different position. So make it relative before using for cache. */
lv_area_t a = t->area;
if(t->type == LV_DRAW_TASK_TYPE_IMAGE) {
lv_draw_image_dsc_t * img_dsc = (lv_draw_image_dsc_t *)data_to_find.draw_dsc;
lv_area_move(&img_dsc->image_area, -t->area.x1, -t->area.y1);
}
else if(t->type == LV_DRAW_TASK_TYPE_TRIANGLE) {
lv_draw_triangle_dsc_t * tri_dsc = (lv_draw_triangle_dsc_t *)data_to_find.draw_dsc;
tri_dsc->p[0].x -= t->area.x1;
tri_dsc->p[0].y -= t->area.y1;
tri_dsc->p[1].x -= t->area.x1;
tri_dsc->p[1].y -= t->area.y1;
tri_dsc->p[2].x -= t->area.x1;
tri_dsc->p[2].y -= t->area.y1;
}
else if(t->type == LV_DRAW_TASK_TYPE_LINE) {
lv_draw_line_dsc_t * line_dsc = (lv_draw_line_dsc_t *)data_to_find.draw_dsc;
line_dsc->p1.x -= t->area.x1;
line_dsc->p1.y -= t->area.y1;
line_dsc->p2.x -= t->area.x1;
line_dsc->p2.y -= t->area.y1;
}
else if(t->type == LV_DRAW_TASK_TYPE_ARC) {
lv_draw_arc_dsc_t * arc_dsc = (lv_draw_arc_dsc_t *)data_to_find.draw_dsc;
arc_dsc->center.x -= t->area.x1;
arc_dsc->center.y -= t->area.y1;
}
lv_area_move(&t->area, -a.x1, -a.y1);
lv_area_move(&t->_real_area, -a.x1, -a.y1);
lv_cache_entry_t * entry_cached = lv_cache_acquire_or_create(u->texture_cache, &data_to_find, u);
lv_area_move(&t->area, a.x1, a.y1);
lv_area_move(&t->_real_area, a.x1, a.y1);
if(!entry_cached) {
return;
}
data_to_find.draw_dsc->user_data = user_data_saved;
cache_data_t * data_cached = lv_cache_entry_get_data(entry_cached);
unsigned int texture = data_cached->texture;
lv_layer_t * dest_layer = t->target_layer;
unsigned int target_texture = layer_get_texture(dest_layer);
LV_ASSERT(target_texture != 0);
int32_t targ_tex_w = lv_area_get_width(&dest_layer->buf_area);
int32_t targ_tex_h = lv_area_get_height(&dest_layer->buf_area);
GL_CALL(glBindTexture(GL_TEXTURE_2D, target_texture));
unsigned int framebuffer = get_framebuffer(u);
GL_CALL(glBindFramebuffer(GL_FRAMEBUFFER, framebuffer));
GL_CALL(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, target_texture, 0));
lv_opengles_viewport(0, 0, targ_tex_w, targ_tex_h);
lv_area_move(&t->clip_area, -dest_layer->buf_area.x1, -dest_layer->buf_area.y1);
lv_area_t render_area = t->_real_area;
lv_area_move(&render_area, -dest_layer->buf_area.x1, -dest_layer->buf_area.y1);
lv_opengles_render_texture(texture, &render_area, 0xff, targ_tex_w, targ_tex_h, &t->clip_area, true);
GL_CALL(glBindFramebuffer(GL_FRAMEBUFFER, 0));
lv_cache_release(u->texture_cache, entry_cached, u);
/*Do not cache non static (const) texts as the text's pointer can be freed/reallocated
*at any time resulting in a wild pointer in the cached draw dsc. */
if(t->type == LV_DRAW_TASK_TYPE_LABEL) {
lv_draw_label_dsc_t * label_dsc = t->draw_dsc;
if(!label_dsc->text_static) {
lv_cache_drop(u->texture_cache, &data_to_find, u);
}
}
}
static void execute_drawing(lv_draw_opengles_unit_t * u)
{
lv_draw_task_t * t = u->task_act;
t->draw_unit = (lv_draw_unit_t *)u;
if(t->type == LV_DRAW_TASK_TYPE_FILL) {
lv_draw_fill_dsc_t * fill_dsc = t->draw_dsc;
if(fill_dsc->radius == 0 && fill_dsc->grad.dir == LV_GRAD_DIR_NONE) {
lv_layer_t * layer = t->target_layer;
lv_area_t fill_area = t->area;
lv_area_intersect(&fill_area, &fill_area, &t->clip_area);
lv_area_move(&fill_area, -layer->buf_area.x1, -layer->buf_area.y1);
unsigned int target_texture = layer_get_texture(layer);
LV_ASSERT(target_texture != 0);
int32_t targ_tex_w = lv_area_get_width(&layer->buf_area);
int32_t targ_tex_h = lv_area_get_height(&layer->buf_area);
unsigned int framebuffer = get_framebuffer(u);
GL_CALL(glBindFramebuffer(GL_FRAMEBUFFER, framebuffer));
GL_CALL(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, target_texture, 0));
lv_opengles_viewport(0, 0, targ_tex_w, targ_tex_h);
lv_opengles_render_fill(fill_dsc->color, &fill_area, fill_dsc->opa, targ_tex_w, targ_tex_h);
GL_CALL(glBindFramebuffer(GL_FRAMEBUFFER, 0));
return;
}
}
if(t->type == LV_DRAW_TASK_TYPE_LAYER) {
blend_texture_layer(t);
return;
}
#if LV_USE_3DTEXTURE
if(t->type == LV_DRAW_TASK_TYPE_3D) {
lv_draw_opengles_3d(t, t->draw_dsc, &t->area);
return;
}
#endif
draw_from_cached_texture(t);
}
static unsigned int layer_get_texture(lv_layer_t * layer)
{
return (unsigned int)(uintptr_t)layer->user_data;
}
static unsigned int get_framebuffer(lv_draw_opengles_unit_t * u)
{
if(u->framebuffer == 0) {
GL_CALL(glGenFramebuffers(1, &u->framebuffer));
}
return u->framebuffer;
}
static unsigned int create_texture(int32_t w, int32_t h, const void * data)
{
unsigned int texture;
GL_CALL(glGenTextures(1, &texture));
GL_CALL(glBindTexture(GL_TEXTURE_2D, texture));
GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST));
GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST));
GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1));
/* LV_COLOR_DEPTH 32, 24, 16 are supported but the cached textures will always
* have full ARGB pixels since the alpha channel is required for blending.
*/
GL_CALL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_BGRA, GL_UNSIGNED_BYTE, data));
glGenerateMipmap(GL_TEXTURE_2D);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 20);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
return texture;
}
#if LV_USE_3DTEXTURE
static void lv_draw_opengles_3d(lv_draw_task_t * t, const lv_draw_3d_dsc_t * dsc, const lv_area_t * coords)
{
lv_draw_opengles_unit_t * u = (lv_draw_opengles_unit_t *) t->draw_unit;
lv_layer_t * dest_layer = t->target_layer;
unsigned int target_texture = layer_get_texture(dest_layer);
LV_ASSERT(target_texture != 0);
int32_t targ_tex_w = lv_area_get_width(&dest_layer->buf_area);
int32_t targ_tex_h = lv_area_get_height(&dest_layer->buf_area);
GL_CALL(glBindTexture(GL_TEXTURE_2D, target_texture));
unsigned int framebuffer = get_framebuffer(u);
GL_CALL(glBindFramebuffer(GL_FRAMEBUFFER, framebuffer));
GL_CALL(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, target_texture, 0));
lv_opengles_viewport(0, 0, targ_tex_w, targ_tex_h);
lv_area_t clip_area = t->clip_area;
lv_area_move(&clip_area, -dest_layer->buf_area.x1, -dest_layer->buf_area.y1);
lv_opengles_render_texture(dsc->tex_id, coords, dsc->opa, targ_tex_w, targ_tex_h, &clip_area, true);
GL_CALL(glBindFramebuffer(GL_FRAMEBUFFER, 0));
GL_CALL(glBindTexture(GL_TEXTURE_2D, 0));
}
#endif /*LV_USE_3DTEXTURE*/
#endif /*LV_USE_DRAW_OPENGLES*/
components/lvgl__lvgl/src/draw/opengles/lv_draw_opengles.h
+45
View File
@@ -0,0 +1,45 @@
/**
* @file lv_draw_opengles.h
*
*/
#ifndef LV_DRAW_OPENGLES_H
#define LV_DRAW_OPENGLES_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../../lv_conf_internal.h"
#if LV_USE_DRAW_OPENGLES
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
void lv_draw_opengles_init(void);
void lv_draw_opengles_deinit(void);
/**********************
* MACROS
**********************/
#endif /*LV_USE_DRAW_OPENGLES*/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_OPENGLES_H*/