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rasterizer_canvas_gles3.cpp
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/**************************************************************************/
/* rasterizer_canvas_gles3.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "rasterizer_canvas_gles3.h"
#ifdef GLES3_ENABLED
#include "rasterizer_gles3.h"
#include "rasterizer_scene_gles3.h"
#include "core/config/project_settings.h"
#include "core/math/geometry_2d.h"
#include "core/math/transform_interpolator.h"
#include "servers/rendering/rendering_server_default.h"
#include "storage/config.h"
#include "storage/material_storage.h"
#include "storage/mesh_storage.h"
#include "storage/particles_storage.h"
#include "storage/texture_storage.h"
void RasterizerCanvasGLES3::_update_transform_2d_to_mat4(const Transform2D &p_transform, float *p_mat4) {
p_mat4[0] = p_transform.columns[0][0];
p_mat4[1] = p_transform.columns[0][1];
p_mat4[2] = 0;
p_mat4[3] = 0;
p_mat4[4] = p_transform.columns[1][0];
p_mat4[5] = p_transform.columns[1][1];
p_mat4[6] = 0;
p_mat4[7] = 0;
p_mat4[8] = 0;
p_mat4[9] = 0;
p_mat4[10] = 1;
p_mat4[11] = 0;
p_mat4[12] = p_transform.columns[2][0];
p_mat4[13] = p_transform.columns[2][1];
p_mat4[14] = 0;
p_mat4[15] = 1;
}
void RasterizerCanvasGLES3::_update_transform_2d_to_mat2x4(const Transform2D &p_transform, float *p_mat2x4) {
p_mat2x4[0] = p_transform.columns[0][0];
p_mat2x4[1] = p_transform.columns[1][0];
p_mat2x4[2] = 0;
p_mat2x4[3] = p_transform.columns[2][0];
p_mat2x4[4] = p_transform.columns[0][1];
p_mat2x4[5] = p_transform.columns[1][1];
p_mat2x4[6] = 0;
p_mat2x4[7] = p_transform.columns[2][1];
}
void RasterizerCanvasGLES3::_update_transform_2d_to_mat2x3(const Transform2D &p_transform, float *p_mat2x3) {
p_mat2x3[0] = p_transform.columns[0][0];
p_mat2x3[1] = p_transform.columns[0][1];
p_mat2x3[2] = p_transform.columns[1][0];
p_mat2x3[3] = p_transform.columns[1][1];
p_mat2x3[4] = p_transform.columns[2][0];
p_mat2x3[5] = p_transform.columns[2][1];
}
void RasterizerCanvasGLES3::_update_transform_to_mat4(const Transform3D &p_transform, float *p_mat4) {
p_mat4[0] = p_transform.basis.rows[0][0];
p_mat4[1] = p_transform.basis.rows[1][0];
p_mat4[2] = p_transform.basis.rows[2][0];
p_mat4[3] = 0;
p_mat4[4] = p_transform.basis.rows[0][1];
p_mat4[5] = p_transform.basis.rows[1][1];
p_mat4[6] = p_transform.basis.rows[2][1];
p_mat4[7] = 0;
p_mat4[8] = p_transform.basis.rows[0][2];
p_mat4[9] = p_transform.basis.rows[1][2];
p_mat4[10] = p_transform.basis.rows[2][2];
p_mat4[11] = 0;
p_mat4[12] = p_transform.origin.x;
p_mat4[13] = p_transform.origin.y;
p_mat4[14] = p_transform.origin.z;
p_mat4[15] = 1;
}
void RasterizerCanvasGLES3::canvas_render_items(RID p_to_render_target, Item *p_item_list, const Color &p_modulate, Light *p_light_list, Light *p_directional_light_list, const Transform2D &p_canvas_transform, RS::CanvasItemTextureFilter p_default_filter, RS::CanvasItemTextureRepeat p_default_repeat, bool p_snap_2d_vertices_to_pixel, bool &r_sdf_used, RenderingMethod::RenderInfo *r_render_info) {
GLES3::TextureStorage *texture_storage = GLES3::TextureStorage::get_singleton();
GLES3::MaterialStorage *material_storage = GLES3::MaterialStorage::get_singleton();
GLES3::MeshStorage *mesh_storage = GLES3::MeshStorage::get_singleton();
Transform2D canvas_transform_inverse = p_canvas_transform.affine_inverse();
// Clear out any state that may have been left from the 3D pass.
reset_canvas();
if (state.canvas_instance_data_buffers[state.current_data_buffer_index].fence != GLsync()) {
GLint syncStatus;
glGetSynciv(state.canvas_instance_data_buffers[state.current_data_buffer_index].fence, GL_SYNC_STATUS, 1, nullptr, &syncStatus);
if (syncStatus == GL_UNSIGNALED) {
// If older than 2 frames, wait for sync OpenGL can have up to 3 frames in flight, any more and we need to sync anyway.
if (state.canvas_instance_data_buffers[state.current_data_buffer_index].last_frame_used < RSG::rasterizer->get_frame_number() - 2) {
#ifndef WEB_ENABLED
// On web, we do nothing as the glSubBufferData will force a sync anyway and WebGL does not like waiting.
glClientWaitSync(state.canvas_instance_data_buffers[state.current_data_buffer_index].fence, 0, 100000000); // wait for up to 100ms
#endif
state.canvas_instance_data_buffers[state.current_data_buffer_index].last_frame_used = RSG::rasterizer->get_frame_number();
glDeleteSync(state.canvas_instance_data_buffers[state.current_data_buffer_index].fence);
state.canvas_instance_data_buffers[state.current_data_buffer_index].fence = GLsync();
} else {
// Used in last frame or frame before that. OpenGL can get up to two frames behind, so these buffers may still be in use
// Allocate a new buffer and use that.
_allocate_instance_data_buffer();
}
} else {
// Already finished all rendering commands, we can use it.
state.canvas_instance_data_buffers[state.current_data_buffer_index].last_frame_used = RSG::rasterizer->get_frame_number();
glDeleteSync(state.canvas_instance_data_buffers[state.current_data_buffer_index].fence);
state.canvas_instance_data_buffers[state.current_data_buffer_index].fence = GLsync();
}
}
//setup directional lights if exist
uint32_t light_count = 0;
uint32_t directional_light_count = 0;
{
Light *l = p_directional_light_list;
uint32_t index = 0;
while (l) {
if (index == data.max_lights_per_render) {
l->render_index_cache = -1;
l = l->next_ptr;
continue;
}
CanvasLight *clight = canvas_light_owner.get_or_null(l->light_internal);
if (!clight) { //unused or invalid texture
l->render_index_cache = -1;
l = l->next_ptr;
ERR_CONTINUE(!clight);
}
Vector2 canvas_light_dir = l->xform_cache.columns[1].normalized();
state.light_uniforms[index].position[0] = -canvas_light_dir.x;
state.light_uniforms[index].position[1] = -canvas_light_dir.y;
_update_transform_2d_to_mat2x4(clight->shadow.directional_xform, state.light_uniforms[index].shadow_matrix);
state.light_uniforms[index].height = l->height; //0..1 here
for (int i = 0; i < 4; i++) {
state.light_uniforms[index].shadow_color[i] = uint8_t(CLAMP(int32_t(l->shadow_color[i] * 255.0), 0, 255));
state.light_uniforms[index].color[i] = l->color[i];
}
state.light_uniforms[index].color[3] *= l->energy; //use alpha for energy, so base color can go separate
if (state.shadow_fb != 0) {
state.light_uniforms[index].shadow_pixel_size = (1.0 / state.shadow_texture_size) * (1.0 + l->shadow_smooth);
state.light_uniforms[index].shadow_z_far_inv = 1.0 / clight->shadow.z_far;
state.light_uniforms[index].shadow_y_ofs = clight->shadow.y_offset;
} else {
state.light_uniforms[index].shadow_pixel_size = 1.0;
state.light_uniforms[index].shadow_z_far_inv = 1.0;
state.light_uniforms[index].shadow_y_ofs = 0;
}
state.light_uniforms[index].flags = l->blend_mode << LIGHT_FLAGS_BLEND_SHIFT;
state.light_uniforms[index].flags |= l->shadow_filter << LIGHT_FLAGS_FILTER_SHIFT;
if (clight->shadow.enabled) {
state.light_uniforms[index].flags |= LIGHT_FLAGS_HAS_SHADOW;
}
l->render_index_cache = index;
index++;
l = l->next_ptr;
}
light_count = index;
directional_light_count = light_count;
state.using_directional_lights = directional_light_count > 0;
}
//setup lights if exist
{
Light *l = p_light_list;
uint32_t index = light_count;
while (l) {
if (index == data.max_lights_per_render) {
l->render_index_cache = -1;
l = l->next_ptr;
continue;
}
CanvasLight *clight = canvas_light_owner.get_or_null(l->light_internal);
if (!clight) { //unused or invalid texture
l->render_index_cache = -1;
l = l->next_ptr;
ERR_CONTINUE(!clight);
}
Transform2D final_xform;
if (!RSG::canvas->_interpolation_data.interpolation_enabled || !l->interpolated) {
final_xform = l->xform_curr;
} else {
real_t f = Engine::get_singleton()->get_physics_interpolation_fraction();
TransformInterpolator::interpolate_transform_2d(l->xform_prev, l->xform_curr, final_xform, f);
}
// Convert light position to canvas coordinates, as all computation is done in canvas coordinates to avoid precision loss.
Vector2 canvas_light_pos = p_canvas_transform.xform(final_xform.get_origin());
state.light_uniforms[index].position[0] = canvas_light_pos.x;
state.light_uniforms[index].position[1] = canvas_light_pos.y;
_update_transform_2d_to_mat2x4(l->light_shader_xform.affine_inverse(), state.light_uniforms[index].matrix);
_update_transform_2d_to_mat2x4(l->xform_cache.affine_inverse(), state.light_uniforms[index].shadow_matrix);
state.light_uniforms[index].height = l->height * (p_canvas_transform.columns[0].length() + p_canvas_transform.columns[1].length()) * 0.5; //approximate height conversion to the canvas size, since all calculations are done in canvas coords to avoid precision loss
for (int i = 0; i < 4; i++) {
state.light_uniforms[index].shadow_color[i] = uint8_t(CLAMP(int32_t(l->shadow_color[i] * 255.0), 0, 255));
state.light_uniforms[index].color[i] = l->color[i];
}
state.light_uniforms[index].color[3] *= l->energy; //use alpha for energy, so base color can go separate
if (state.shadow_fb != 0) {
state.light_uniforms[index].shadow_pixel_size = (1.0 / state.shadow_texture_size) * (1.0 + l->shadow_smooth);
state.light_uniforms[index].shadow_z_far_inv = 1.0 / clight->shadow.z_far;
state.light_uniforms[index].shadow_y_ofs = clight->shadow.y_offset;
} else {
state.light_uniforms[index].shadow_pixel_size = 1.0;
state.light_uniforms[index].shadow_z_far_inv = 1.0;
state.light_uniforms[index].shadow_y_ofs = 0;
}
state.light_uniforms[index].flags = l->blend_mode << LIGHT_FLAGS_BLEND_SHIFT;
state.light_uniforms[index].flags |= l->shadow_filter << LIGHT_FLAGS_FILTER_SHIFT;
if (clight->shadow.enabled) {
state.light_uniforms[index].flags |= LIGHT_FLAGS_HAS_SHADOW;
}
if (clight->texture.is_valid()) {
Rect2 atlas_rect = GLES3::TextureStorage::get_singleton()->texture_atlas_get_texture_rect(clight->texture);
state.light_uniforms[index].atlas_rect[0] = atlas_rect.position.x;
state.light_uniforms[index].atlas_rect[1] = atlas_rect.position.y;
state.light_uniforms[index].atlas_rect[2] = atlas_rect.size.width;
state.light_uniforms[index].atlas_rect[3] = atlas_rect.size.height;
} else {
state.light_uniforms[index].atlas_rect[0] = 0;
state.light_uniforms[index].atlas_rect[1] = 0;
state.light_uniforms[index].atlas_rect[2] = 0;
state.light_uniforms[index].atlas_rect[3] = 0;
}
l->render_index_cache = index;
index++;
l = l->next_ptr;
}
light_count = index;
}
if (light_count > 0) {
glBindBufferBase(GL_UNIFORM_BUFFER, LIGHT_UNIFORM_LOCATION, state.canvas_instance_data_buffers[state.current_data_buffer_index].light_ubo);
#ifdef WEB_ENABLED
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(LightUniform) * light_count, state.light_uniforms);
#else
// On Desktop and mobile we map the memory without synchronizing for maximum speed.
void *ubo = glMapBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(LightUniform) * light_count, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
memcpy(ubo, state.light_uniforms, sizeof(LightUniform) * light_count);
glUnmapBuffer(GL_UNIFORM_BUFFER);
#endif
GLuint texture_atlas = texture_storage->texture_atlas_get_texture();
if (texture_atlas == 0) {
GLES3::Texture *tex = texture_storage->get_texture(texture_storage->texture_gl_get_default(GLES3::DEFAULT_GL_TEXTURE_WHITE));
texture_atlas = tex->tex_id;
}
glActiveTexture(GL_TEXTURE0 + GLES3::Config::get_singleton()->max_texture_image_units - 2);
glBindTexture(GL_TEXTURE_2D, texture_atlas);
GLuint shadow_tex = state.shadow_texture;
if (shadow_tex == 0) {
GLES3::Texture *tex = texture_storage->get_texture(texture_storage->texture_gl_get_default(GLES3::DEFAULT_GL_TEXTURE_WHITE));
shadow_tex = tex->tex_id;
}
glActiveTexture(GL_TEXTURE0 + GLES3::Config::get_singleton()->max_texture_image_units - 3);
glBindTexture(GL_TEXTURE_2D, shadow_tex);
}
{
//update canvas state uniform buffer
StateBuffer state_buffer;
Size2i ssize = texture_storage->render_target_get_size(p_to_render_target);
// If we've overridden the render target's color texture, then we need
// to invert the Y axis, so 2D texture appear right side up.
// We're probably rendering directly to an XR device.
float y_scale = texture_storage->render_target_get_override_color(p_to_render_target).is_valid() ? -2.0f : 2.0f;
Transform3D screen_transform;
screen_transform.translate_local(-(ssize.width / 2.0f), -(ssize.height / 2.0f), 0.0f);
screen_transform.scale(Vector3(2.0f / ssize.width, y_scale / ssize.height, 1.0f));
_update_transform_to_mat4(screen_transform, state_buffer.screen_transform);
_update_transform_2d_to_mat4(p_canvas_transform, state_buffer.canvas_transform);
Transform2D normal_transform = p_canvas_transform;
normal_transform.columns[0].normalize();
normal_transform.columns[1].normalize();
normal_transform.columns[2] = Vector2();
_update_transform_2d_to_mat4(normal_transform, state_buffer.canvas_normal_transform);
state_buffer.canvas_modulate[0] = p_modulate.r;
state_buffer.canvas_modulate[1] = p_modulate.g;
state_buffer.canvas_modulate[2] = p_modulate.b;
state_buffer.canvas_modulate[3] = p_modulate.a;
Size2 render_target_size = texture_storage->render_target_get_size(p_to_render_target);
state_buffer.screen_pixel_size[0] = 1.0 / render_target_size.x;
state_buffer.screen_pixel_size[1] = 1.0 / render_target_size.y;
state_buffer.time = state.time;
state_buffer.use_pixel_snap = p_snap_2d_vertices_to_pixel;
state_buffer.directional_light_count = directional_light_count;
Vector2 canvas_scale = p_canvas_transform.get_scale();
state_buffer.sdf_to_screen[0] = render_target_size.width / canvas_scale.x;
state_buffer.sdf_to_screen[1] = render_target_size.height / canvas_scale.y;
state_buffer.screen_to_sdf[0] = 1.0 / state_buffer.sdf_to_screen[0];
state_buffer.screen_to_sdf[1] = 1.0 / state_buffer.sdf_to_screen[1];
Rect2 sdf_rect = texture_storage->render_target_get_sdf_rect(p_to_render_target);
Rect2 sdf_tex_rect(sdf_rect.position / canvas_scale, sdf_rect.size / canvas_scale);
state_buffer.sdf_to_tex[0] = 1.0 / sdf_tex_rect.size.width;
state_buffer.sdf_to_tex[1] = 1.0 / sdf_tex_rect.size.height;
state_buffer.sdf_to_tex[2] = -sdf_tex_rect.position.x / sdf_tex_rect.size.width;
state_buffer.sdf_to_tex[3] = -sdf_tex_rect.position.y / sdf_tex_rect.size.height;
state_buffer.tex_to_sdf = 1.0 / ((canvas_scale.x + canvas_scale.y) * 0.5);
glBindBufferBase(GL_UNIFORM_BUFFER, BASE_UNIFORM_LOCATION, state.canvas_instance_data_buffers[state.current_data_buffer_index].state_ubo);
glBufferData(GL_UNIFORM_BUFFER, sizeof(StateBuffer), &state_buffer, GL_STREAM_DRAW);
GLuint global_buffer = material_storage->global_shader_parameters_get_uniform_buffer();
glBindBufferBase(GL_UNIFORM_BUFFER, GLOBAL_UNIFORM_LOCATION, global_buffer);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
}
glActiveTexture(GL_TEXTURE0 + GLES3::Config::get_singleton()->max_texture_image_units - 5);
glBindTexture(GL_TEXTURE_2D, texture_storage->render_target_get_sdf_texture(p_to_render_target));
{
state.default_filter = p_default_filter;
state.default_repeat = p_default_repeat;
}
Size2 render_target_size = texture_storage->render_target_get_size(p_to_render_target);
glViewport(0, 0, render_target_size.x, render_target_size.y);
r_sdf_used = false;
int item_count = 0;
bool backbuffer_cleared = false;
bool time_used = false;
bool material_screen_texture_cached = false;
bool material_screen_texture_mipmaps_cached = false;
Rect2 back_buffer_rect;
bool backbuffer_copy = false;
bool backbuffer_gen_mipmaps = false;
bool update_skeletons = false;
Item *ci = p_item_list;
Item *canvas_group_owner = nullptr;
bool skip_item = false;
state.last_item_index = 0;
while (ci) {
if (ci->copy_back_buffer && canvas_group_owner == nullptr) {
backbuffer_copy = true;
if (ci->copy_back_buffer->full) {
back_buffer_rect = Rect2();
} else {
back_buffer_rect = ci->copy_back_buffer->rect;
}
}
// Check material for something that may change flow of rendering, but do not bind for now.
RID material = ci->material_owner == nullptr ? ci->material : ci->material_owner->material;
if (material.is_valid()) {
GLES3::CanvasMaterialData *md = static_cast<GLES3::CanvasMaterialData *>(material_storage->material_get_data(material, RS::SHADER_CANVAS_ITEM));
if (md && md->shader_data->valid) {
if (md->shader_data->uses_screen_texture && canvas_group_owner == nullptr) {
if (!material_screen_texture_cached) {
backbuffer_copy = true;
back_buffer_rect = Rect2();
backbuffer_gen_mipmaps = md->shader_data->uses_screen_texture_mipmaps;
} else if (!material_screen_texture_mipmaps_cached) {
backbuffer_gen_mipmaps = md->shader_data->uses_screen_texture_mipmaps;
}
}
if (md->shader_data->uses_sdf) {
r_sdf_used = true;
}
if (md->shader_data->uses_time) {
time_used = true;
}
}
}
if (ci->skeleton.is_valid()) {
const Item::Command *c = ci->commands;
while (c) {
if (c->type == Item::Command::TYPE_MESH) {
const Item::CommandMesh *cm = static_cast<const Item::CommandMesh *>(c);
if (cm->mesh_instance.is_valid()) {
mesh_storage->mesh_instance_check_for_update(cm->mesh_instance);
mesh_storage->mesh_instance_set_canvas_item_transform(cm->mesh_instance, canvas_transform_inverse * ci->final_transform);
update_skeletons = true;
}
}
c = c->next;
}
}
if (ci->canvas_group_owner != nullptr) {
if (canvas_group_owner == nullptr) {
if (update_skeletons) {
mesh_storage->update_mesh_instances();
update_skeletons = false;
}
// Canvas group begins here, render until before this item
_render_items(p_to_render_target, item_count, canvas_transform_inverse, p_light_list, r_sdf_used, false, r_render_info, material_screen_texture_mipmaps_cached);
item_count = 0;
if (ci->canvas_group_owner->canvas_group->mode != RS::CANVAS_GROUP_MODE_TRANSPARENT) {
Rect2i group_rect = ci->canvas_group_owner->global_rect_cache;
texture_storage->render_target_copy_to_back_buffer(p_to_render_target, group_rect, false);
if (ci->canvas_group_owner->canvas_group->mode == RS::CANVAS_GROUP_MODE_CLIP_AND_DRAW) {
ci->canvas_group_owner->use_canvas_group = false;
items[item_count++] = ci->canvas_group_owner;
}
} else if (!backbuffer_cleared) {
texture_storage->render_target_clear_back_buffer(p_to_render_target, Rect2i(), Color(0, 0, 0, 0));
backbuffer_cleared = true;
}
backbuffer_copy = false;
canvas_group_owner = ci->canvas_group_owner; //continue until owner found
}
ci->canvas_group_owner = nullptr; //must be cleared
}
if (canvas_group_owner == nullptr && ci->canvas_group != nullptr && ci->canvas_group->mode != RS::CANVAS_GROUP_MODE_CLIP_AND_DRAW) {
skip_item = true;
}
if (ci == canvas_group_owner) {
if (update_skeletons) {
mesh_storage->update_mesh_instances();
update_skeletons = false;
}
_render_items(p_to_render_target, item_count, canvas_transform_inverse, p_light_list, r_sdf_used, true, r_render_info, material_screen_texture_mipmaps_cached);
item_count = 0;
if (ci->canvas_group->blur_mipmaps) {
texture_storage->render_target_gen_back_buffer_mipmaps(p_to_render_target, ci->global_rect_cache);
}
canvas_group_owner = nullptr;
// Backbuffer is dirty now and needs to be re-cleared if another CanvasGroup needs it.
backbuffer_cleared = false;
// Tell the renderer to paint this as a canvas group
ci->use_canvas_group = true;
} else {
ci->use_canvas_group = false;
}
if (backbuffer_copy) {
if (update_skeletons) {
mesh_storage->update_mesh_instances();
update_skeletons = false;
}
//render anything pending, including clearing if no items
_render_items(p_to_render_target, item_count, canvas_transform_inverse, p_light_list, r_sdf_used, false, r_render_info, material_screen_texture_mipmaps_cached);
item_count = 0;
texture_storage->render_target_copy_to_back_buffer(p_to_render_target, back_buffer_rect, backbuffer_gen_mipmaps);
backbuffer_copy = false;
material_screen_texture_cached = true; // After a backbuffer copy, screen texture makes no further copies.
material_screen_texture_mipmaps_cached = backbuffer_gen_mipmaps;
backbuffer_gen_mipmaps = false;
}
if (backbuffer_gen_mipmaps) {
texture_storage->render_target_gen_back_buffer_mipmaps(p_to_render_target, back_buffer_rect);
backbuffer_gen_mipmaps = false;
material_screen_texture_mipmaps_cached = true;
}
// just add all items for now
if (skip_item) {
skip_item = false;
} else {
items[item_count++] = ci;
}
if (!ci->next || item_count == MAX_RENDER_ITEMS - 1) {
if (update_skeletons) {
mesh_storage->update_mesh_instances();
update_skeletons = false;
}
_render_items(p_to_render_target, item_count, canvas_transform_inverse, p_light_list, r_sdf_used, canvas_group_owner != nullptr, r_render_info, material_screen_texture_mipmaps_cached);
//then reset
item_count = 0;
}
ci = ci->next;
}
if (time_used) {
RenderingServerDefault::redraw_request();
}
state.canvas_instance_data_buffers[state.current_data_buffer_index].fence = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
// Clear out state used in 2D pass
reset_canvas();
state.current_data_buffer_index = (state.current_data_buffer_index + 1) % state.canvas_instance_data_buffers.size();
state.current_instance_buffer_index = 0;
}
void RasterizerCanvasGLES3::_render_items(RID p_to_render_target, int p_item_count, const Transform2D &p_canvas_transform_inverse, Light *p_lights, bool &r_sdf_used, bool p_to_backbuffer, RenderingMethod::RenderInfo *r_render_info, bool p_backbuffer_has_mipmaps) {
GLES3::MaterialStorage *material_storage = GLES3::MaterialStorage::get_singleton();
canvas_begin(p_to_render_target, p_to_backbuffer, p_backbuffer_has_mipmaps);
if (p_item_count <= 0) {
// Nothing to draw, just call canvas_begin() to clear the render target and return.
return;
}
uint32_t index = 0;
Item *current_clip = nullptr;
GLES3::CanvasShaderData *shader_data_cache = nullptr;
// Record Batches.
// First item always forms its own batch.
bool batch_broken = false;
_new_batch(batch_broken);
// Override the start position and index as we want to start from where we finished off last time.
state.canvas_instance_batches[state.current_batch_index].start = state.last_item_index;
index = 0;
for (int i = 0; i < p_item_count; i++) {
Item *ci = items[i];
if (ci->final_clip_owner != state.canvas_instance_batches[state.current_batch_index].clip) {
_new_batch(batch_broken);
state.canvas_instance_batches[state.current_batch_index].clip = ci->final_clip_owner;
current_clip = ci->final_clip_owner;
}
RID material = ci->material_owner == nullptr ? ci->material : ci->material_owner->material;
if (ci->use_canvas_group) {
if (ci->canvas_group->mode == RS::CANVAS_GROUP_MODE_CLIP_AND_DRAW) {
material = default_clip_children_material;
} else {
if (material.is_null()) {
if (ci->canvas_group->mode == RS::CANVAS_GROUP_MODE_CLIP_ONLY) {
material = default_clip_children_material;
} else {
material = default_canvas_group_material;
}
}
}
}
if (material != state.canvas_instance_batches[state.current_batch_index].material) {
_new_batch(batch_broken);
GLES3::CanvasMaterialData *material_data = nullptr;
if (material.is_valid()) {
material_data = static_cast<GLES3::CanvasMaterialData *>(material_storage->material_get_data(material, RS::SHADER_CANVAS_ITEM));
}
shader_data_cache = nullptr;
if (material_data) {
if (material_data->shader_data->version.is_valid() && material_data->shader_data->valid) {
shader_data_cache = material_data->shader_data;
}
}
state.canvas_instance_batches[state.current_batch_index].material = material;
state.canvas_instance_batches[state.current_batch_index].material_data = material_data;
if (shader_data_cache) {
state.canvas_instance_batches[state.current_batch_index].vertex_input_mask = shader_data_cache->vertex_input_mask;
}
}
GLES3::CanvasShaderData::BlendMode blend_mode = shader_data_cache ? shader_data_cache->blend_mode : GLES3::CanvasShaderData::BLEND_MODE_MIX;
if (!ci->repeat_size.x && !ci->repeat_size.y) {
_record_item_commands(ci, p_to_render_target, p_canvas_transform_inverse, current_clip, blend_mode, p_lights, index, batch_broken, r_sdf_used, Point2());
} else {
Point2 start_pos = ci->repeat_size * -(ci->repeat_times / 2);
Point2 offset;
int repeat_times_x = ci->repeat_size.x ? ci->repeat_times : 0;
int repeat_times_y = ci->repeat_size.y ? ci->repeat_times : 0;
for (int ry = 0; ry <= repeat_times_y; ry++) {
offset.y = start_pos.y + ry * ci->repeat_size.y;
for (int rx = 0; rx <= repeat_times_x; rx++) {
offset.x = start_pos.x + rx * ci->repeat_size.x;
_record_item_commands(ci, p_to_render_target, p_canvas_transform_inverse, current_clip, blend_mode, p_lights, index, batch_broken, r_sdf_used, offset);
}
}
}
}
if (index == 0) {
// Nothing to render, just return.
state.current_batch_index = 0;
state.canvas_instance_batches.clear();
return;
}
// Copy over all data needed for rendering.
glBindBuffer(GL_ARRAY_BUFFER, state.canvas_instance_data_buffers[state.current_data_buffer_index].instance_buffers[state.current_instance_buffer_index]);
#ifdef WEB_ENABLED
glBufferSubData(GL_ARRAY_BUFFER, state.last_item_index * sizeof(InstanceData), sizeof(InstanceData) * index, state.instance_data_array);
#else
// On Desktop and mobile we map the memory without synchronizing for maximum speed.
void *buffer = glMapBufferRange(GL_ARRAY_BUFFER, state.last_item_index * sizeof(InstanceData), index * sizeof(InstanceData), GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
memcpy(buffer, state.instance_data_array, index * sizeof(InstanceData));
glUnmapBuffer(GL_ARRAY_BUFFER);
#endif
glDisable(GL_SCISSOR_TEST);
current_clip = nullptr;
GLES3::CanvasShaderData::BlendMode last_blend_mode = GLES3::CanvasShaderData::BLEND_MODE_MIX;
Color last_blend_color;
state.current_tex = RID();
const uint64_t base_specialization = GLES3::Config::get_singleton()->float_texture_supported ? 0 : CanvasShaderGLES3::USE_RGBA_SHADOWS;
for (uint32_t i = 0; i <= state.current_batch_index; i++) {
// Skipping when there is no instances.
if (state.canvas_instance_batches[i].instance_count == 0) {
continue;
}
//setup clip
if (current_clip != state.canvas_instance_batches[i].clip) {
current_clip = state.canvas_instance_batches[i].clip;
if (current_clip) {
glEnable(GL_SCISSOR_TEST);
glScissor(current_clip->final_clip_rect.position.x, current_clip->final_clip_rect.position.y, current_clip->final_clip_rect.size.x, current_clip->final_clip_rect.size.y);
} else {
glDisable(GL_SCISSOR_TEST);
}
}
GLES3::CanvasMaterialData *material_data = state.canvas_instance_batches[i].material_data;
CanvasShaderGLES3::ShaderVariant variant = CanvasShaderGLES3::MODE_DEFAULT;
uint64_t specialization = state.canvas_instance_batches[i].specialization;
specialization |= base_specialization;
RID shader_version = data.canvas_shader_default_version;
if (material_data) {
if (material_data->shader_data->version.is_valid() && material_data->shader_data->valid) {
// Bind uniform buffer and textures
material_data->bind_uniforms();
shader_version = material_data->shader_data->version;
}
}
bool success = material_storage->shaders.canvas_shader.version_bind_shader(shader_version, variant, specialization);
if (!success) {
continue;
}
// Bind per-batch uniforms.
material_storage->shaders.canvas_shader.version_set_uniform(CanvasShaderGLES3::BATCH_FLAGS, state.canvas_instance_batches[i].flags, shader_version, variant, specialization);
material_storage->shaders.canvas_shader.version_set_uniform(CanvasShaderGLES3::SPECULAR_SHININESS_IN, state.canvas_instance_batches[i].specular_shininess, shader_version, variant, specialization);
GLES3::CanvasShaderData::BlendMode blend_mode = state.canvas_instance_batches[i].blend_mode;
Color blend_color = state.canvas_instance_batches[i].blend_color;
if (last_blend_mode != blend_mode || last_blend_color != blend_color) {
if (last_blend_mode == GLES3::CanvasShaderData::BLEND_MODE_DISABLED) {
// re-enable it
glEnable(GL_BLEND);
} else if (blend_mode == GLES3::CanvasShaderData::BLEND_MODE_DISABLED) {
// disable it
glDisable(GL_BLEND);
}
switch (blend_mode) {
case GLES3::CanvasShaderData::BLEND_MODE_DISABLED: {
// Nothing to do here.
} break;
case GLES3::CanvasShaderData::BLEND_MODE_LCD: {
glBlendEquation(GL_FUNC_ADD);
if (state.transparent_render_target) {
glBlendFuncSeparate(GL_CONSTANT_COLOR, GL_ONE_MINUS_SRC_COLOR, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
} else {
glBlendFuncSeparate(GL_CONSTANT_COLOR, GL_ONE_MINUS_SRC_COLOR, GL_ZERO, GL_ONE);
}
glBlendColor(blend_color.r, blend_color.g, blend_color.b, blend_color.a);
} break;
case GLES3::CanvasShaderData::BLEND_MODE_MIX: {
glBlendEquation(GL_FUNC_ADD);
if (state.transparent_render_target) {
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
} else {
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ZERO, GL_ONE);
}
} break;
case GLES3::CanvasShaderData::BLEND_MODE_ADD: {
glBlendEquation(GL_FUNC_ADD);
if (state.transparent_render_target) {
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE, GL_SRC_ALPHA, GL_ONE);
} else {
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE, GL_ZERO, GL_ONE);
}
} break;
case GLES3::CanvasShaderData::BLEND_MODE_SUB: {
glBlendEquation(GL_FUNC_REVERSE_SUBTRACT);
if (state.transparent_render_target) {
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE, GL_SRC_ALPHA, GL_ONE);
} else {
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE, GL_ZERO, GL_ONE);
}
} break;
case GLES3::CanvasShaderData::BLEND_MODE_MUL: {
glBlendEquation(GL_FUNC_ADD);
if (state.transparent_render_target) {
glBlendFuncSeparate(GL_DST_COLOR, GL_ZERO, GL_DST_ALPHA, GL_ZERO);
} else {
glBlendFuncSeparate(GL_DST_COLOR, GL_ZERO, GL_ZERO, GL_ONE);
}
} break;
case GLES3::CanvasShaderData::BLEND_MODE_PMALPHA: {
glBlendEquation(GL_FUNC_ADD);
if (state.transparent_render_target) {
glBlendFuncSeparate(GL_ONE, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
} else {
glBlendFuncSeparate(GL_ONE, GL_ONE_MINUS_SRC_ALPHA, GL_ZERO, GL_ONE);
}
} break;
}
last_blend_mode = blend_mode;
last_blend_color = blend_color;
}
_render_batch(p_lights, i, r_render_info);
}
glDisable(GL_SCISSOR_TEST);
state.current_batch_index = 0;
state.canvas_instance_batches.clear();
state.last_item_index += index;
}
void RasterizerCanvasGLES3::_record_item_commands(const Item *p_item, RID p_render_target, const Transform2D &p_canvas_transform_inverse, Item *¤t_clip, GLES3::CanvasShaderData::BlendMode p_blend_mode, Light *p_lights, uint32_t &r_index, bool &r_batch_broken, bool &r_sdf_used, const Point2 &p_repeat_offset) {
RenderingServer::CanvasItemTextureFilter texture_filter = p_item->texture_filter == RS::CANVAS_ITEM_TEXTURE_FILTER_DEFAULT ? state.default_filter : p_item->texture_filter;
const uint64_t specialization_command_mask = ~(CanvasShaderGLES3::USE_NINEPATCH | CanvasShaderGLES3::USE_PRIMITIVE | CanvasShaderGLES3::USE_ATTRIBUTES | CanvasShaderGLES3::USE_INSTANCING);
if (texture_filter != state.canvas_instance_batches[state.current_batch_index].filter) {
_new_batch(r_batch_broken);
state.canvas_instance_batches[state.current_batch_index].filter = texture_filter;
}
RenderingServer::CanvasItemTextureRepeat texture_repeat = p_item->texture_repeat == RS::CANVAS_ITEM_TEXTURE_REPEAT_DEFAULT ? state.default_repeat : p_item->texture_repeat;
if (texture_repeat != state.canvas_instance_batches[state.current_batch_index].repeat) {
_new_batch(r_batch_broken);
state.canvas_instance_batches[state.current_batch_index].repeat = texture_repeat;
}
Transform2D base_transform = p_item->final_transform;
if (p_item->repeat_source_item && (p_repeat_offset.x || p_repeat_offset.y)) {
base_transform.columns[2] += p_item->repeat_source_item->final_transform.basis_xform(p_repeat_offset);
}
base_transform = p_canvas_transform_inverse * base_transform;
Transform2D draw_transform; // Used by transform command
Color base_color = p_item->final_modulate;
uint32_t base_flags = 0;
Size2 texpixel_size;
bool reclip = false;
bool skipping = false;
// TODO: consider making lights a per-batch property and then baking light operations in the shader for better performance.
uint32_t lights[4] = { 0, 0, 0, 0 };
uint16_t light_count = 0;
uint16_t shadow_mask = 0;
{
Light *light = p_lights;
while (light) {
if (light->render_index_cache >= 0 && p_item->light_mask & light->item_mask && p_item->z_final >= light->z_min && p_item->z_final <= light->z_max && p_item->global_rect_cache.intersects(light->rect_cache)) {
uint32_t light_index = light->render_index_cache;
lights[light_count >> 2] |= light_index << ((light_count & 3) * 8);
if (p_item->light_mask & light->item_shadow_mask) {
shadow_mask |= 1 << light_count;
}
light_count++;
if (light_count == data.max_lights_per_item - 1) {
break;
}
}
light = light->next_ptr;
}
base_flags |= light_count << INSTANCE_FLAGS_LIGHT_COUNT_SHIFT;
base_flags |= shadow_mask << INSTANCE_FLAGS_SHADOW_MASKED_SHIFT;
}
bool lights_disabled = light_count == 0 && !state.using_directional_lights;
if (lights_disabled != bool(state.canvas_instance_batches[state.current_batch_index].specialization & CanvasShaderGLES3::DISABLE_LIGHTING)) {
_new_batch(r_batch_broken);
state.canvas_instance_batches[state.current_batch_index].specialization ^= CanvasShaderGLES3::DISABLE_LIGHTING;
}
const Item::Command *c = p_item->commands;
while (c) {
if (skipping && c->type != Item::Command::TYPE_ANIMATION_SLICE) {
c = c->next;
continue;
}
if (c->type != Item::Command::TYPE_MESH) {
// For Meshes, this gets updated below.
_update_transform_2d_to_mat2x3(base_transform * draw_transform, state.instance_data_array[r_index].world);
}
// Zero out most fields.
for (int i = 0; i < 4; i++) {
state.instance_data_array[r_index].modulation[i] = 0.0;
state.instance_data_array[r_index].ninepatch_margins[i] = 0.0;
state.instance_data_array[r_index].src_rect[i] = 0.0;
state.instance_data_array[r_index].dst_rect[i] = 0.0;
state.instance_data_array[r_index].lights[i] = uint32_t(0);
}
state.instance_data_array[r_index].color_texture_pixel_size[0] = 0.0;
state.instance_data_array[r_index].color_texture_pixel_size[1] = 0.0;
state.instance_data_array[r_index].lights[0] = lights[0];
state.instance_data_array[r_index].lights[1] = lights[1];
state.instance_data_array[r_index].lights[2] = lights[2];
state.instance_data_array[r_index].lights[3] = lights[3];
state.instance_data_array[r_index].flags = base_flags;
state.instance_data_array[r_index].instance_uniforms_ofs = p_item->instance_allocated_shader_uniforms_offset;
Color blend_color = base_color;
GLES3::CanvasShaderData::BlendMode blend_mode = p_blend_mode;
if (c->type == Item::Command::TYPE_RECT) {
const Item::CommandRect *rect = static_cast<const Item::CommandRect *>(c);
if (rect->flags & CANVAS_RECT_LCD) {
blend_mode = GLES3::CanvasShaderData::BLEND_MODE_LCD;
blend_color = rect->modulate * base_color;
}
}
if (blend_mode != state.canvas_instance_batches[state.current_batch_index].blend_mode || blend_color != state.canvas_instance_batches[state.current_batch_index].blend_color) {
_new_batch(r_batch_broken);
state.canvas_instance_batches[state.current_batch_index].blend_mode = blend_mode;
state.canvas_instance_batches[state.current_batch_index].blend_color = blend_color;
}
switch (c->type) {
case Item::Command::TYPE_RECT: {
const Item::CommandRect *rect = static_cast<const Item::CommandRect *>(c);
if (rect->flags & CANVAS_RECT_TILE && state.canvas_instance_batches[state.current_batch_index].repeat != RenderingServer::CanvasItemTextureRepeat::CANVAS_ITEM_TEXTURE_REPEAT_ENABLED) {
_new_batch(r_batch_broken);
state.canvas_instance_batches[state.current_batch_index].repeat = RenderingServer::CanvasItemTextureRepeat::CANVAS_ITEM_TEXTURE_REPEAT_ENABLED;
}
if (rect->texture != state.canvas_instance_batches[state.current_batch_index].tex || state.canvas_instance_batches[state.current_batch_index].command_type != Item::Command::TYPE_RECT) {
_new_batch(r_batch_broken);
state.canvas_instance_batches[state.current_batch_index].tex = rect->texture;
state.canvas_instance_batches[state.current_batch_index].command_type = Item::Command::TYPE_RECT;
state.canvas_instance_batches[state.current_batch_index].command = c;
state.canvas_instance_batches[state.current_batch_index].specialization &= specialization_command_mask;
state.canvas_instance_batches[state.current_batch_index].flags = 0;
}
_prepare_canvas_texture(rect->texture, state.canvas_instance_batches[state.current_batch_index].filter, state.canvas_instance_batches[state.current_batch_index].repeat, r_index, texpixel_size);
Rect2 src_rect;
Rect2 dst_rect;
if (rect->texture != RID()) {
src_rect = (rect->flags & CANVAS_RECT_REGION) ? Rect2(rect->source.position * texpixel_size, rect->source.size * texpixel_size) : Rect2(0, 0, 1, 1);
dst_rect = Rect2(rect->rect.position, rect->rect.size);
if (dst_rect.size.width < 0) {
dst_rect.position.x += dst_rect.size.width;
dst_rect.size.width *= -1;
}
if (dst_rect.size.height < 0) {
dst_rect.position.y += dst_rect.size.height;
dst_rect.size.height *= -1;
}
if (rect->flags & CANVAS_RECT_FLIP_H) {
src_rect.size.x *= -1;
}
if (rect->flags & CANVAS_RECT_FLIP_V) {
src_rect.size.y *= -1;
}
if (rect->flags & CANVAS_RECT_TRANSPOSE) {
state.instance_data_array[r_index].flags |= INSTANCE_FLAGS_TRANSPOSE_RECT;
}
if (rect->flags & CANVAS_RECT_CLIP_UV) {
state.instance_data_array[r_index].flags |= INSTANCE_FLAGS_CLIP_RECT_UV;
}
} else {
dst_rect = Rect2(rect->rect.position, rect->rect.size);
if (dst_rect.size.width < 0) {
dst_rect.position.x += dst_rect.size.width;
dst_rect.size.width *= -1;
}
if (dst_rect.size.height < 0) {
dst_rect.position.y += dst_rect.size.height;
dst_rect.size.height *= -1;
}
src_rect = Rect2(0, 0, 1, 1);
}