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virtualx-engine/drivers/gles3/storage/texture_storage.cpp
clayjohn 9ce57050a5 Add GPUParticles to the OpenGL3 renderer. 
This includes collision (2D SDF, Box, Sphere, Heightmap),
attraction (Box, Sphere), and all sorting modes.

This does not include 3D SDF collisions, trails, or
manual emission.
2022-11-14 23:28:25 -08:00

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/*************************************************************************/
/* texture_storage.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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. */
/*************************************************************************/
#ifdef GLES3_ENABLED
#include "texture_storage.h"
#include "config.h"
#include "drivers/gles3/effects/copy_effects.h"
#ifdef ANDROID_ENABLED
#define glFramebufferTextureMultiviewOVR GLES3::Config::get_singleton()->eglFramebufferTextureMultiviewOVR
#endif
using namespace GLES3;
TextureStorage *TextureStorage::singleton = nullptr;
TextureStorage *TextureStorage::get_singleton() {
return singleton;
}
static const GLenum _cube_side_enum[6] = {
GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
GL_TEXTURE_CUBE_MAP_POSITIVE_X,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
};
TextureStorage::TextureStorage() {
singleton = this;
system_fbo = 0;
{ //create default textures
{ // White Textures
Ref<Image> image = Image::create_empty(4, 4, true, Image::FORMAT_RGBA8);
image->fill(Color(1, 1, 1, 1));
image->generate_mipmaps();
default_gl_textures[DEFAULT_GL_TEXTURE_WHITE] = texture_allocate();
texture_2d_initialize(default_gl_textures[DEFAULT_GL_TEXTURE_WHITE], image);
Vector<Ref<Image>> images;
images.push_back(image);
default_gl_textures[DEFAULT_GL_TEXTURE_2D_ARRAY_WHITE] = texture_allocate();
texture_2d_layered_initialize(default_gl_textures[DEFAULT_GL_TEXTURE_2D_ARRAY_WHITE], images, RS::TEXTURE_LAYERED_2D_ARRAY);
for (int i = 0; i < 3; i++) {
images.push_back(image);
}
default_gl_textures[DEFAULT_GL_TEXTURE_3D_WHITE] = texture_allocate();
texture_3d_initialize(default_gl_textures[DEFAULT_GL_TEXTURE_3D_WHITE], image->get_format(), 4, 4, 4, false, images);
for (int i = 0; i < 2; i++) {
images.push_back(image);
}
default_gl_textures[DEFAULT_GL_TEXTURE_CUBEMAP_WHITE] = texture_allocate();
texture_2d_layered_initialize(default_gl_textures[DEFAULT_GL_TEXTURE_CUBEMAP_WHITE], images, RS::TEXTURE_LAYERED_CUBEMAP);
}
{ // black
Ref<Image> image = Image::create_empty(4, 4, true, Image::FORMAT_RGBA8);
image->fill(Color(0, 0, 0, 1));
image->generate_mipmaps();
default_gl_textures[DEFAULT_GL_TEXTURE_BLACK] = texture_allocate();
texture_2d_initialize(default_gl_textures[DEFAULT_GL_TEXTURE_BLACK], image);
Vector<Ref<Image>> images;
for (int i = 0; i < 4; i++) {
images.push_back(image);
}
default_gl_textures[DEFAULT_GL_TEXTURE_3D_BLACK] = texture_allocate();
texture_3d_initialize(default_gl_textures[DEFAULT_GL_TEXTURE_3D_BLACK], image->get_format(), 4, 4, 4, false, images);
for (int i = 0; i < 2; i++) {
images.push_back(image);
}
default_gl_textures[DEFAULT_GL_TEXTURE_CUBEMAP_BLACK] = texture_allocate();
texture_2d_layered_initialize(default_gl_textures[DEFAULT_GL_TEXTURE_CUBEMAP_BLACK], images, RS::TEXTURE_LAYERED_CUBEMAP);
}
{ // transparent black
Ref<Image> image = Image::create_empty(4, 4, true, Image::FORMAT_RGBA8);
image->fill(Color(0, 0, 0, 0));
image->generate_mipmaps();
default_gl_textures[DEFAULT_GL_TEXTURE_TRANSPARENT] = texture_allocate();
texture_2d_initialize(default_gl_textures[DEFAULT_GL_TEXTURE_TRANSPARENT], image);
}
{
Ref<Image> image = Image::create_empty(4, 4, true, Image::FORMAT_RGBA8);
image->fill(Color(0.5, 0.5, 1, 1));
image->generate_mipmaps();
default_gl_textures[DEFAULT_GL_TEXTURE_NORMAL] = texture_allocate();
texture_2d_initialize(default_gl_textures[DEFAULT_GL_TEXTURE_NORMAL], image);
}
{
Ref<Image> image = Image::create_empty(4, 4, true, Image::FORMAT_RGBA8);
image->fill(Color(1.0, 0.5, 1, 1));
image->generate_mipmaps();
default_gl_textures[DEFAULT_GL_TEXTURE_ANISO] = texture_allocate();
texture_2d_initialize(default_gl_textures[DEFAULT_GL_TEXTURE_ANISO], image);
}
{
unsigned char pixel_data[4 * 4 * 4];
for (int i = 0; i < 16; i++) {
pixel_data[i * 4 + 0] = 0;
pixel_data[i * 4 + 1] = 0;
pixel_data[i * 4 + 2] = 0;
pixel_data[i * 4 + 3] = 0;
}
default_gl_textures[DEFAULT_GL_TEXTURE_2D_UINT] = texture_allocate();
Texture texture;
texture.width = 4;
texture.height = 4;
texture.format = Image::FORMAT_RGBA8;
texture.type = Texture::TYPE_2D;
texture.target = GL_TEXTURE_2D;
texture.active = true;
glGenTextures(1, &texture.tex_id);
texture_owner.initialize_rid(default_gl_textures[DEFAULT_GL_TEXTURE_2D_UINT], texture);
glBindTexture(GL_TEXTURE_2D, texture.tex_id);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8UI, 4, 4, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, pixel_data);
texture.gl_set_filter(RS::CANVAS_ITEM_TEXTURE_FILTER_NEAREST);
}
{
uint16_t pixel_data[4 * 4];
for (int i = 0; i < 16; i++) {
pixel_data[i] = Math::make_half_float(1.0f);
}
default_gl_textures[DEFAULT_GL_TEXTURE_DEPTH] = texture_allocate();
Texture texture;
texture.width = 4;
texture.height = 4;
texture.format = Image::FORMAT_RGBA8;
texture.type = Texture::TYPE_2D;
texture.target = GL_TEXTURE_2D;
texture.active = true;
glGenTextures(1, &texture.tex_id);
texture_owner.initialize_rid(default_gl_textures[DEFAULT_GL_TEXTURE_DEPTH], texture);
glBindTexture(GL_TEXTURE_2D, texture.tex_id);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT16, 4, 4, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, pixel_data);
texture.gl_set_filter(RS::CANVAS_ITEM_TEXTURE_FILTER_NEAREST);
}
}
glBindTexture(GL_TEXTURE_2D, 0);
{ // Atlas Texture initialize.
uint8_t pixel_data[4 * 4 * 4];
for (int i = 0; i < 16; i++) {
pixel_data[i * 4 + 0] = 0;
pixel_data[i * 4 + 1] = 0;
pixel_data[i * 4 + 2] = 0;
pixel_data[i * 4 + 3] = 255;
}
glGenTextures(1, &texture_atlas.texture);
glBindTexture(GL_TEXTURE_2D, texture_atlas.texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixel_data);
}
glBindTexture(GL_TEXTURE_2D, 0);
{
sdf_shader.shader.initialize();
sdf_shader.shader_version = sdf_shader.shader.version_create();
}
#ifdef GLES_OVER_GL
glEnable(GL_PROGRAM_POINT_SIZE);
#endif
}
TextureStorage::~TextureStorage() {
singleton = nullptr;
for (int i = 0; i < DEFAULT_GL_TEXTURE_MAX; i++) {
texture_free(default_gl_textures[i]);
}
glDeleteTextures(1, &texture_atlas.texture);
texture_atlas.texture = 0;
glDeleteFramebuffers(1, &texture_atlas.framebuffer);
texture_atlas.framebuffer = 0;
sdf_shader.shader.version_free(sdf_shader.shader_version);
}
//TODO, move back to storage
bool TextureStorage::can_create_resources_async() const {
return false;
}
/* Canvas Texture API */
RID TextureStorage::canvas_texture_allocate() {
return canvas_texture_owner.allocate_rid();
}
void TextureStorage::canvas_texture_initialize(RID p_rid) {
canvas_texture_owner.initialize_rid(p_rid);
}
void TextureStorage::canvas_texture_free(RID p_rid) {
canvas_texture_owner.free(p_rid);
}
void TextureStorage::canvas_texture_set_channel(RID p_canvas_texture, RS::CanvasTextureChannel p_channel, RID p_texture) {
CanvasTexture *ct = canvas_texture_owner.get_or_null(p_canvas_texture);
switch (p_channel) {
case RS::CANVAS_TEXTURE_CHANNEL_DIFFUSE: {
ct->diffuse = p_texture;
} break;
case RS::CANVAS_TEXTURE_CHANNEL_NORMAL: {
ct->normal_map = p_texture;
} break;
case RS::CANVAS_TEXTURE_CHANNEL_SPECULAR: {
ct->specular = p_texture;
} break;
}
}
void TextureStorage::canvas_texture_set_shading_parameters(RID p_canvas_texture, const Color &p_specular_color, float p_shininess) {
CanvasTexture *ct = canvas_texture_owner.get_or_null(p_canvas_texture);
ct->specular_color.r = p_specular_color.r;
ct->specular_color.g = p_specular_color.g;
ct->specular_color.b = p_specular_color.b;
ct->specular_color.a = p_shininess;
}
void TextureStorage::canvas_texture_set_texture_filter(RID p_canvas_texture, RS::CanvasItemTextureFilter p_filter) {
CanvasTexture *ct = canvas_texture_owner.get_or_null(p_canvas_texture);
ct->texture_filter = p_filter;
}
void TextureStorage::canvas_texture_set_texture_repeat(RID p_canvas_texture, RS::CanvasItemTextureRepeat p_repeat) {
CanvasTexture *ct = canvas_texture_owner.get_or_null(p_canvas_texture);
ct->texture_repeat = p_repeat;
}
/* Texture API */
Ref<Image> TextureStorage::_get_gl_image_and_format(const Ref<Image> &p_image, Image::Format p_format, Image::Format &r_real_format, GLenum &r_gl_format, GLenum &r_gl_internal_format, GLenum &r_gl_type, bool &r_compressed, bool p_force_decompress) const {
Config *config = Config::get_singleton();
r_gl_format = 0;
Ref<Image> image = p_image;
r_compressed = false;
r_real_format = p_format;
bool need_decompress = false;
switch (p_format) {
case Image::FORMAT_L8: {
#ifdef GLES_OVER_GL
r_gl_internal_format = GL_R8;
r_gl_format = GL_RED;
r_gl_type = GL_UNSIGNED_BYTE;
#else
r_gl_internal_format = GL_LUMINANCE;
r_gl_format = GL_LUMINANCE;
r_gl_type = GL_UNSIGNED_BYTE;
#endif
} break;
case Image::FORMAT_LA8: {
#ifdef GLES_OVER_GL
r_gl_internal_format = GL_RG8;
r_gl_format = GL_RG;
r_gl_type = GL_UNSIGNED_BYTE;
#else
r_gl_internal_format = GL_LUMINANCE_ALPHA;
r_gl_format = GL_LUMINANCE_ALPHA;
r_gl_type = GL_UNSIGNED_BYTE;
#endif
} break;
case Image::FORMAT_R8: {
r_gl_internal_format = GL_R8;
r_gl_format = GL_RED;
r_gl_type = GL_UNSIGNED_BYTE;
} break;
case Image::FORMAT_RG8: {
r_gl_internal_format = GL_RG8;
r_gl_format = GL_RG;
r_gl_type = GL_UNSIGNED_BYTE;
} break;
case Image::FORMAT_RGB8: {
r_gl_internal_format = GL_RGB8;
r_gl_format = GL_RGB;
r_gl_type = GL_UNSIGNED_BYTE;
} break;
case Image::FORMAT_RGBA8: {
r_gl_format = GL_RGBA;
r_gl_internal_format = GL_RGBA8;
r_gl_type = GL_UNSIGNED_BYTE;
} break;
case Image::FORMAT_RGBA4444: {
r_gl_internal_format = GL_RGBA4;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_SHORT_4_4_4_4;
} break;
case Image::FORMAT_RF: {
r_gl_internal_format = GL_R32F;
r_gl_format = GL_RED;
r_gl_type = GL_FLOAT;
} break;
case Image::FORMAT_RGF: {
r_gl_internal_format = GL_RG32F;
r_gl_format = GL_RG;
r_gl_type = GL_FLOAT;
} break;
case Image::FORMAT_RGBF: {
r_gl_internal_format = GL_RGB32F;
r_gl_format = GL_RGB;
r_gl_type = GL_FLOAT;
} break;
case Image::FORMAT_RGBAF: {
r_gl_internal_format = GL_RGBA32F;
r_gl_format = GL_RGBA;
r_gl_type = GL_FLOAT;
} break;
case Image::FORMAT_RH: {
r_gl_internal_format = GL_R16F;
r_gl_format = GL_RED;
r_gl_type = GL_HALF_FLOAT;
} break;
case Image::FORMAT_RGH: {
r_gl_internal_format = GL_RG16F;
r_gl_format = GL_RG;
r_gl_type = GL_HALF_FLOAT;
} break;
case Image::FORMAT_RGBH: {
r_gl_internal_format = GL_RGB16F;
r_gl_format = GL_RGB;
r_gl_type = GL_HALF_FLOAT;
} break;
case Image::FORMAT_RGBAH: {
r_gl_internal_format = GL_RGBA16F;
r_gl_format = GL_RGBA;
r_gl_type = GL_HALF_FLOAT;
} break;
case Image::FORMAT_RGBE9995: {
r_gl_internal_format = GL_RGB9_E5;
r_gl_format = GL_RGB;
r_gl_type = GL_UNSIGNED_INT_5_9_9_9_REV;
} break;
case Image::FORMAT_DXT1: {
if (config->s3tc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGBA_S3TC_DXT1_EXT;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_DXT3: {
if (config->s3tc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGBA_S3TC_DXT3_EXT;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_DXT5: {
if (config->s3tc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGBA_S3TC_DXT5_EXT;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_RGTC_R: {
if (config->rgtc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RED_RGTC1_EXT;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_RGTC_RG: {
if (config->rgtc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RED_GREEN_RGTC2_EXT;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_BPTC_RGBA: {
if (config->bptc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGBA_BPTC_UNORM;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_BPTC_RGBF: {
if (config->bptc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGB_BPTC_SIGNED_FLOAT;
r_gl_format = GL_RGB;
r_gl_type = GL_FLOAT;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_BPTC_RGBFU: {
if (config->bptc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT;
r_gl_format = GL_RGB;
r_gl_type = GL_FLOAT;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ETC2_R11: {
if (config->etc2_supported) {
r_gl_internal_format = _EXT_COMPRESSED_R11_EAC;
r_gl_format = GL_RED;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ETC2_R11S: {
if (config->etc2_supported) {
r_gl_internal_format = _EXT_COMPRESSED_SIGNED_R11_EAC;
r_gl_format = GL_RED;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ETC2_RG11: {
if (config->etc2_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RG11_EAC;
r_gl_format = GL_RG;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ETC2_RG11S: {
if (config->etc2_supported) {
r_gl_internal_format = _EXT_COMPRESSED_SIGNED_RG11_EAC;
r_gl_format = GL_RG;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ETC:
case Image::FORMAT_ETC2_RGB8: {
if (config->etc2_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGB8_ETC2;
r_gl_format = GL_RGB;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ETC2_RGBA8: {
if (config->etc2_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGBA8_ETC2_EAC;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ETC2_RGB8A1: {
if (config->etc2_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
default: {
ERR_FAIL_V_MSG(Ref<Image>(), "Image Format: " + itos(p_format) + " is not supported by the OpenGL3 Renderer");
}
}
if (need_decompress || p_force_decompress) {
if (!image.is_null()) {
image = image->duplicate();
image->decompress();
ERR_FAIL_COND_V(image->is_compressed(), image);
switch (image->get_format()) {
case Image::FORMAT_RGB8: {
r_gl_format = GL_RGB;
r_gl_internal_format = GL_RGB;
r_gl_type = GL_UNSIGNED_BYTE;
r_real_format = Image::FORMAT_RGB8;
r_compressed = false;
} break;
case Image::FORMAT_RGBA8: {
r_gl_format = GL_RGBA;
r_gl_internal_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_real_format = Image::FORMAT_RGBA8;
r_compressed = false;
} break;
default: {
image->convert(Image::FORMAT_RGBA8);
r_gl_format = GL_RGBA;
r_gl_internal_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_real_format = Image::FORMAT_RGBA8;
r_compressed = false;
} break;
}
}
return image;
}
return p_image;
}
RID TextureStorage::texture_allocate() {
return texture_owner.allocate_rid();
}
void TextureStorage::texture_free(RID p_texture) {
Texture *t = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND(!t);
ERR_FAIL_COND(t->is_render_target);
if (t->canvas_texture) {
memdelete(t->canvas_texture);
}
if (t->tex_id != 0) {
if (!t->is_external) {
glDeleteTextures(1, &t->tex_id);
}
t->tex_id = 0;
}
if (t->is_proxy && t->proxy_to.is_valid()) {
Texture *proxy_to = texture_owner.get_or_null(t->proxy_to);
if (proxy_to) {
proxy_to->proxies.erase(p_texture);
}
}
texture_atlas_remove_texture(p_texture);
for (int i = 0; i < t->proxies.size(); i++) {
Texture *p = texture_owner.get_or_null(t->proxies[i]);
ERR_CONTINUE(!p);
p->proxy_to = RID();
p->tex_id = 0;
}
texture_owner.free(p_texture);
}
void TextureStorage::texture_2d_initialize(RID p_texture, const Ref<Image> &p_image) {
ERR_FAIL_COND(p_image.is_null());
Texture texture;
texture.width = p_image->get_width();
texture.height = p_image->get_height();
texture.alloc_width = texture.width;
texture.alloc_height = texture.height;
texture.mipmaps = p_image->get_mipmap_count() + 1;
texture.format = p_image->get_format();
texture.type = Texture::TYPE_2D;
texture.target = GL_TEXTURE_2D;
_get_gl_image_and_format(Ref<Image>(), texture.format, texture.real_format, texture.gl_format_cache, texture.gl_internal_format_cache, texture.gl_type_cache, texture.compressed, false);
//texture.total_data_size = p_image->get_image_data_size(); // verify that this returns size in bytes
texture.active = true;
glGenTextures(1, &texture.tex_id);
texture_owner.initialize_rid(p_texture, texture);
texture_set_data(p_texture, p_image);
}
void TextureStorage::texture_2d_layered_initialize(RID p_texture, const Vector<Ref<Image>> &p_layers, RS::TextureLayeredType p_layered_type) {
texture_owner.initialize_rid(p_texture, Texture());
}
void TextureStorage::texture_3d_initialize(RID p_texture, Image::Format, int p_width, int p_height, int p_depth, bool p_mipmaps, const Vector<Ref<Image>> &p_data) {
texture_owner.initialize_rid(p_texture, Texture());
}
// Called internally when texture_proxy_create(p_base) is called.
// Note: p_base is the root and p_texture is the proxy.
void TextureStorage::texture_proxy_initialize(RID p_texture, RID p_base) {
Texture *texture = texture_owner.get_or_null(p_base);
ERR_FAIL_COND(!texture);
Texture proxy_tex;
proxy_tex.copy_from(*texture);
proxy_tex.proxy_to = p_base;
proxy_tex.is_render_target = false;
proxy_tex.is_proxy = true;
proxy_tex.proxies.clear();
texture->proxies.push_back(p_texture);
texture_owner.initialize_rid(p_texture, proxy_tex);
}
RID TextureStorage::texture_create_external(Texture::Type p_type, Image::Format p_format, unsigned int p_image, int p_width, int p_height, int p_depth, int p_layers, RS::TextureLayeredType p_layered_type) {
Texture texture;
texture.active = true;
texture.is_external = true;
texture.type = p_type;
switch (p_type) {
case Texture::TYPE_2D: {
texture.target = GL_TEXTURE_2D;
} break;
case Texture::TYPE_3D: {
texture.target = GL_TEXTURE_3D;
} break;
case Texture::TYPE_LAYERED: {
texture.target = GL_TEXTURE_2D_ARRAY;
} break;
}
texture.real_format = texture.format = p_format;
texture.tex_id = p_image;
texture.alloc_width = texture.width = p_width;
texture.alloc_height = texture.height = p_height;
texture.depth = p_depth;
texture.layers = p_layers;
texture.layered_type = p_layered_type;
return texture_owner.make_rid(texture);
}
void TextureStorage::texture_2d_update(RID p_texture, const Ref<Image> &p_image, int p_layer) {
texture_set_data(p_texture, p_image, p_layer);
#ifdef TOOLS_ENABLED
Texture *tex = texture_owner.get_or_null(p_texture);
tex->image_cache_2d.unref();
#endif
}
void TextureStorage::texture_proxy_update(RID p_texture, RID p_proxy_to) {
Texture *tex = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND(!tex);
ERR_FAIL_COND(!tex->is_proxy);
Texture *proxy_to = texture_owner.get_or_null(p_proxy_to);
ERR_FAIL_COND(!proxy_to);
ERR_FAIL_COND(proxy_to->is_proxy);
if (tex->proxy_to.is_valid()) {
Texture *prev_tex = texture_owner.get_or_null(tex->proxy_to);
ERR_FAIL_COND(!prev_tex);
prev_tex->proxies.erase(p_texture);
}
*tex = *proxy_to;
tex->proxy_to = p_proxy_to;
tex->is_render_target = false;
tex->is_proxy = true;
tex->proxies.clear();
proxy_to->proxies.push_back(p_texture);
}
void TextureStorage::texture_2d_placeholder_initialize(RID p_texture) {
//this could be better optimized to reuse an existing image , done this way
//for now to get it working
Ref<Image> image = Image::create_empty(4, 4, false, Image::FORMAT_RGBA8);
image->fill(Color(1, 0, 1, 1));
texture_2d_initialize(p_texture, image);
}
void TextureStorage::texture_2d_layered_placeholder_initialize(RID p_texture, RenderingServer::TextureLayeredType p_layered_type) {
//this could be better optimized to reuse an existing image , done this way
//for now to get it working
Ref<Image> image = Image::create_empty(4, 4, false, Image::FORMAT_RGBA8);
image->fill(Color(1, 0, 1, 1));
Vector<Ref<Image>> images;
if (p_layered_type == RS::TEXTURE_LAYERED_2D_ARRAY) {
images.push_back(image);
} else {
//cube
for (int i = 0; i < 6; i++) {
images.push_back(image);
}
}
texture_2d_layered_initialize(p_texture, images, p_layered_type);
}
void TextureStorage::texture_3d_placeholder_initialize(RID p_texture) {
//this could be better optimized to reuse an existing image , done this way
//for now to get it working
Ref<Image> image = Image::create_empty(4, 4, false, Image::FORMAT_RGBA8);
image->fill(Color(1, 0, 1, 1));
Vector<Ref<Image>> images;
//cube
for (int i = 0; i < 4; i++) {
images.push_back(image);
}
texture_3d_initialize(p_texture, Image::FORMAT_RGBA8, 4, 4, 4, false, images);
}
Ref<Image> TextureStorage::texture_2d_get(RID p_texture) const {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND_V(!texture, Ref<Image>());
#ifdef TOOLS_ENABLED
if (texture->image_cache_2d.is_valid() && !texture->is_render_target) {
return texture->image_cache_2d;
}
#endif
#ifdef GLES_OVER_GL
// OpenGL 3.3 supports glGetTexImage which is faster and simpler than glReadPixels.
// It also allows for reading compressed textures, mipmaps, and more formats.
Vector<uint8_t> data;
int data_size = Image::get_image_data_size(texture->alloc_width, texture->alloc_height, texture->real_format, texture->mipmaps > 1);
data.resize(data_size * 2); //add some memory at the end, just in case for buggy drivers
uint8_t *w = data.ptrw();
glActiveTexture(GL_TEXTURE0);
glBindTexture(texture->target, texture->tex_id);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
for (int i = 0; i < texture->mipmaps; i++) {
int ofs = Image::get_image_mipmap_offset(texture->alloc_width, texture->alloc_height, texture->real_format, i);
if (texture->compressed) {
glPixelStorei(GL_PACK_ALIGNMENT, 4);
glGetCompressedTexImage(texture->target, i, &w[ofs]);
} else {
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glGetTexImage(texture->target, i, texture->gl_format_cache, texture->gl_type_cache, &w[ofs]);
}
}
data.resize(data_size);
ERR_FAIL_COND_V(data.size() == 0, Ref<Image>());
Ref<Image> image = Image::create_from_data(texture->width, texture->height, texture->mipmaps > 1, texture->real_format, data);
ERR_FAIL_COND_V(image->is_empty(), Ref<Image>());
if (texture->format != texture->real_format) {
image->convert(texture->format);
}
#else
Vector<uint8_t> data;
// On web and mobile we always read an RGBA8 image with no mipmaps.
int data_size = Image::get_image_data_size(texture->alloc_width, texture->alloc_height, Image::FORMAT_RGBA8, false);
data.resize(data_size * 2); //add some memory at the end, just in case for buggy drivers
uint8_t *w = data.ptrw();
GLuint temp_framebuffer;
glGenFramebuffers(1, &temp_framebuffer);
GLuint temp_color_texture;
glGenTextures(1, &temp_color_texture);
glBindFramebuffer(GL_FRAMEBUFFER, temp_framebuffer);
glBindTexture(GL_TEXTURE_2D, temp_color_texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, texture->alloc_width, texture->alloc_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, temp_color_texture, 0);
glDepthMask(GL_FALSE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_CULL_FACE);
glDisable(GL_BLEND);
glDepthFunc(GL_LEQUAL);
glColorMask(1, 1, 1, 1);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture->tex_id);
glViewport(0, 0, texture->alloc_width, texture->alloc_height);
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
CopyEffects::get_singleton()->copy_to_rect(Rect2i(0, 0, 1.0, 1.0));
glReadPixels(0, 0, texture->alloc_width, texture->alloc_height, GL_RGBA, GL_UNSIGNED_BYTE, &w[0]);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glDeleteTextures(1, &temp_color_texture);
glDeleteFramebuffers(1, &temp_framebuffer);
data.resize(data_size);
ERR_FAIL_COND_V(data.size() == 0, Ref<Image>());
Ref<Image> image = Image::create_from_data(texture->width, texture->height, false, Image::FORMAT_RGBA8, data);
ERR_FAIL_COND_V(image->is_empty(), Ref<Image>());
if (texture->format != Image::FORMAT_RGBA8) {
image->convert(texture->format);
}
if (texture->mipmaps > 1) {
image->generate_mipmaps();
}
#endif
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint() && !texture->is_render_target) {
texture->image_cache_2d = image;
}
#endif
return image;
}
void TextureStorage::texture_replace(RID p_texture, RID p_by_texture) {
Texture *tex_to = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND(!tex_to);
ERR_FAIL_COND(tex_to->is_proxy); //can't replace proxy
Texture *tex_from = texture_owner.get_or_null(p_by_texture);
ERR_FAIL_COND(!tex_from);
ERR_FAIL_COND(tex_from->is_proxy); //can't replace proxy
if (tex_to == tex_from) {
return;
}
if (tex_to->canvas_texture) {
memdelete(tex_to->canvas_texture);
tex_to->canvas_texture = nullptr;
}
if (tex_to->tex_id) {
glDeleteTextures(1, &tex_to->tex_id);
tex_to->tex_id = 0;
}
Vector<RID> proxies_to_update = tex_to->proxies;
Vector<RID> proxies_to_redirect = tex_from->proxies;
tex_to->copy_from(*tex_from);
tex_to->proxies = proxies_to_update; //restore proxies, so they can be updated
if (tex_to->canvas_texture) {
tex_to->canvas_texture->diffuse = p_texture; //update
}
for (int i = 0; i < proxies_to_update.size(); i++) {
texture_proxy_update(proxies_to_update[i], p_texture);
}
for (int i = 0; i < proxies_to_redirect.size(); i++) {
texture_proxy_update(proxies_to_redirect[i], p_texture);
}
//delete last, so proxies can be updated
texture_owner.free(p_by_texture);
texture_atlas_mark_dirty_on_texture(p_texture);
}
void TextureStorage::texture_set_size_override(RID p_texture, int p_width, int p_height) {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND(!texture);
ERR_FAIL_COND(texture->is_render_target);
ERR_FAIL_COND(p_width <= 0 || p_width > 16384);
ERR_FAIL_COND(p_height <= 0 || p_height > 16384);
//real texture size is in alloc width and height
texture->width = p_width;
texture->height = p_height;
}
void TextureStorage::texture_set_path(RID p_texture, const String &p_path) {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND(!texture);
texture->path = p_path;
}
String TextureStorage::texture_get_path(RID p_texture) const {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND_V(!texture, "");
return texture->path;
}
void TextureStorage::texture_set_detect_3d_callback(RID p_texture, RS::TextureDetectCallback p_callback, void *p_userdata) {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND(!texture);
texture->detect_3d_callback = p_callback;
texture->detect_3d_callback_ud = p_userdata;
}
void TextureStorage::texture_set_detect_srgb_callback(RID p_texture, RS::TextureDetectCallback p_callback, void *p_userdata) {
}
void TextureStorage::texture_set_detect_normal_callback(RID p_texture, RS::TextureDetectCallback p_callback, void *p_userdata) {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND(!texture);
texture->detect_normal_callback = p_callback;
texture->detect_normal_callback_ud = p_userdata;
}
void TextureStorage::texture_set_detect_roughness_callback(RID p_texture, RS::TextureDetectRoughnessCallback p_callback, void *p_userdata) {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND(!texture);
texture->detect_roughness_callback = p_callback;
texture->detect_roughness_callback_ud = p_userdata;
}
void TextureStorage::texture_debug_usage(List<RS::TextureInfo> *r_info) {
List<RID> textures;
texture_owner.get_owned_list(&textures);
for (List<RID>::Element *E = textures.front(); E; E = E->next()) {
Texture *t = texture_owner.get_or_null(E->get());
if (!t) {
continue;
}
RS::TextureInfo tinfo;
tinfo.path = t->path;
tinfo.format = t->format;
tinfo.width = t->alloc_width;
tinfo.height = t->alloc_height;
tinfo.depth = 0;
tinfo.bytes = t->total_data_size;
r_info->push_back(tinfo);
}
}
void TextureStorage::texture_set_force_redraw_if_visible(RID p_texture, bool p_enable) {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND(!texture);
texture->redraw_if_visible = p_enable;
}
Size2 TextureStorage::texture_size_with_proxy(RID p_texture) {
const Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND_V(!texture, Size2());
if (texture->is_proxy) {
const Texture *proxy = texture_owner.get_or_null(texture->proxy_to);
return Size2(proxy->width, proxy->height);
} else {
return Size2(texture->width, texture->height);
}
}
RID TextureStorage::texture_get_rd_texture_rid(RID p_texture, bool p_srgb) const {
return RID();
}
void TextureStorage::texture_set_data(RID p_texture, const Ref<Image> &p_image, int p_layer) {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND(!texture);
if (texture->target == GL_TEXTURE_3D) {
// Target is set to a 3D texture or array texture, exit early to avoid spamming errors
return;
}
ERR_FAIL_COND(!texture->active);
ERR_FAIL_COND(texture->is_render_target);
ERR_FAIL_COND(p_image.is_null());
ERR_FAIL_COND(texture->format != p_image->get_format());
ERR_FAIL_COND(!p_image->get_width());
ERR_FAIL_COND(!p_image->get_height());
// ERR_FAIL_COND(texture->type == RS::TEXTURE_TYPE_EXTERNAL);
GLenum type;
GLenum format;
GLenum internal_format;
bool compressed = false;
// print_line("texture_set_data width " + itos (p_image->get_width()) + " height " + itos(p_image->get_height()));
Image::Format real_format;
Ref<Image> img = _get_gl_image_and_format(p_image, p_image->get_format(), real_format, format, internal_format, type, compressed, texture->resize_to_po2);
ERR_FAIL_COND(img.is_null());
if (texture->resize_to_po2) {
if (p_image->is_compressed()) {
ERR_PRINT("Texture '" + texture->path + "' is required to be a power of 2 because it uses either mipmaps or repeat, so it was decompressed. This will hurt performance and memory usage.");
}
if (img == p_image) {
img = img->duplicate();
}
img->resize_to_po2(false);
}
GLenum blit_target = (texture->target == GL_TEXTURE_CUBE_MAP) ? _cube_side_enum[p_layer] : texture->target;
Vector<uint8_t> read = img->get_data();
glActiveTexture(GL_TEXTURE0);
glBindTexture(texture->target, texture->tex_id);
// set filtering and repeat state to default
texture->gl_set_filter(RS::CANVAS_ITEM_TEXTURE_FILTER_NEAREST);
texture->gl_set_repeat(RS::CANVAS_ITEM_TEXTURE_REPEAT_ENABLED);
//set swizle for older format compatibility
#ifdef GLES_OVER_GL
switch (texture->format) {
case Image::FORMAT_L8: {
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_R, GL_RED);
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_G, GL_RED);
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_B, GL_RED);
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_A, GL_ONE);
} break;
case Image::FORMAT_LA8: {
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_R, GL_RED);
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_G, GL_RED);
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_B, GL_RED);
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_A, GL_GREEN);
} break;
default: {
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_R, GL_RED);
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_G, GL_GREEN);
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_B, GL_BLUE);
glTexParameteri(texture->target, GL_TEXTURE_SWIZZLE_A, GL_ALPHA);
} break;
}
#endif
int mipmaps = img->has_mipmaps() ? img->get_mipmap_count() + 1 : 1;
int w = img->get_width();
int h = img->get_height();
int tsize = 0;
for (int i = 0; i < mipmaps; i++) {
int size, ofs;
img->get_mipmap_offset_and_size(i, ofs, size);
if (compressed) {
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
int bw = w;
int bh = h;
glCompressedTexImage2D(blit_target, i, internal_format, bw, bh, 0, size, &read[ofs]);
} else {
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
if (texture->target == GL_TEXTURE_2D_ARRAY) {
glTexSubImage3D(GL_TEXTURE_2D_ARRAY, i, 0, 0, p_layer, w, h, 0, format, type, &read[ofs]);
} else {
glTexImage2D(blit_target, i, internal_format, w, h, 0, format, type, &read[ofs]);
}
}
tsize += size;
w = MAX(1, w >> 1);
h = MAX(1, h >> 1);
}
// info.texture_mem -= texture->total_data_size; // TODO make this work again!!
texture->total_data_size = tsize;
// info.texture_mem += texture->total_data_size; // TODO make this work again!!
// printf("texture: %i x %i - size: %i - total: %i\n", texture->width, texture->height, tsize, info.texture_mem);
texture->stored_cube_sides |= (1 << p_layer);
texture->mipmaps = mipmaps;
}
void TextureStorage::texture_set_data_partial(RID p_texture, const Ref<Image> &p_image, int src_x, int src_y, int src_w, int src_h, int dst_x, int dst_y, int p_dst_mip, int p_layer) {
ERR_PRINT("Not implemented yet, sorry :(");
}
Image::Format TextureStorage::texture_get_format(RID p_texture) const {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND_V(!texture, Image::FORMAT_L8);
return texture->format;
}
uint32_t TextureStorage::texture_get_texid(RID p_texture) const {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND_V(!texture, 0);
return texture->tex_id;
}
uint32_t TextureStorage::texture_get_width(RID p_texture) const {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND_V(!texture, 0);
return texture->width;
}
uint32_t TextureStorage::texture_get_height(RID p_texture) const {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND_V(!texture, 0);
return texture->height;
}
uint32_t TextureStorage::texture_get_depth(RID p_texture) const {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND_V(!texture, 0);
return texture->depth;
}
void TextureStorage::texture_bind(RID p_texture, uint32_t p_texture_no) {
Texture *texture = texture_owner.get_or_null(p_texture);
ERR_FAIL_COND(!texture);
glActiveTexture(GL_TEXTURE0 + p_texture_no);
glBindTexture(texture->target, texture->tex_id);
}
RID TextureStorage::texture_create_radiance_cubemap(RID p_source, int p_resolution) const {
return RID();
}
/* TEXTURE ATLAS API */
void TextureStorage::texture_add_to_texture_atlas(RID p_texture) {
if (!texture_atlas.textures.has(p_texture)) {
TextureAtlas::Texture t;
t.users = 1;
texture_atlas.textures[p_texture] = t;
texture_atlas.dirty = true;
} else {
TextureAtlas::Texture *t = texture_atlas.textures.getptr(p_texture);
t->users++;
}
}
void TextureStorage::texture_remove_from_texture_atlas(RID p_texture) {
TextureAtlas::Texture *t = texture_atlas.textures.getptr(p_texture);
ERR_FAIL_COND(!t);
t->users--;
if (t->users == 0) {
texture_atlas.textures.erase(p_texture);
// Do not mark it dirty, there is no need to since it remains working.
}
}
void TextureStorage::texture_atlas_mark_dirty_on_texture(RID p_texture) {
if (texture_atlas.textures.has(p_texture)) {
texture_atlas.dirty = true; // Mark it dirty since it was most likely modified.
}
}
void TextureStorage::texture_atlas_remove_texture(RID p_texture) {
if (texture_atlas.textures.has(p_texture)) {
texture_atlas.textures.erase(p_texture);
// There is not much a point of making it dirty, texture can be removed next time the atlas is updated.
}
}
GLuint TextureStorage::texture_atlas_get_texture() const {
return texture_atlas.texture;
}
void TextureStorage::update_texture_atlas() {
CopyEffects *copy_effects = CopyEffects::get_singleton();
ERR_FAIL_NULL(copy_effects);
if (!texture_atlas.dirty) {
return; //nothing to do
}
texture_atlas.dirty = false;
if (texture_atlas.texture != 0) {
glDeleteTextures(1, &texture_atlas.texture);
texture_atlas.texture = 0;
glDeleteFramebuffers(1, &texture_atlas.framebuffer);
texture_atlas.framebuffer = 0;
}
const int border = 2;
if (texture_atlas.textures.size()) {
//generate atlas
Vector<TextureAtlas::SortItem> itemsv;
itemsv.resize(texture_atlas.textures.size());
int base_size = 8;
int idx = 0;
for (const KeyValue<RID, TextureAtlas::Texture> &E : texture_atlas.textures) {
TextureAtlas::SortItem &si = itemsv.write[idx];
Texture *src_tex = get_texture(E.key);
si.size.width = (src_tex->width / border) + 1;
si.size.height = (src_tex->height / border) + 1;
si.pixel_size = Size2i(src_tex->width, src_tex->height);
if (base_size < si.size.width) {
base_size = nearest_power_of_2_templated(si.size.width);
}
si.texture = E.key;
idx++;
}
//sort items by size
itemsv.sort();
//attempt to create atlas
int item_count = itemsv.size();
TextureAtlas::SortItem *items = itemsv.ptrw();
int atlas_height = 0;
while (true) {
Vector<int> v_offsetsv;
v_offsetsv.resize(base_size);
int *v_offsets = v_offsetsv.ptrw();
memset(v_offsets, 0, sizeof(int) * base_size);
int max_height = 0;
for (int i = 0; i < item_count; i++) {
//best fit
TextureAtlas::SortItem &si = items[i];
int best_idx = -1;
int best_height = 0x7FFFFFFF;
for (int j = 0; j <= base_size - si.size.width; j++) {
int height = 0;
for (int k = 0; k < si.size.width; k++) {
int h = v_offsets[k + j];
if (h > height) {
height = h;
if (height > best_height) {
break; //already bad
}
}
}
if (height < best_height) {
best_height = height;
best_idx = j;
}
}
//update
for (int k = 0; k < si.size.width; k++) {
v_offsets[k + best_idx] = best_height + si.size.height;
}
si.pos.x = best_idx;
si.pos.y = best_height;
if (si.pos.y + si.size.height > max_height) {
max_height = si.pos.y + si.size.height;
}
}
if (max_height <= base_size * 2) {
atlas_height = max_height;
break; //good ratio, break;
}
base_size *= 2;
}
texture_atlas.size.width = base_size * border;
texture_atlas.size.height = nearest_power_of_2_templated(atlas_height * border);
for (int i = 0; i < item_count; i++) {
TextureAtlas::Texture *t = texture_atlas.textures.getptr(items[i].texture);
t->uv_rect.position = items[i].pos * border + Vector2i(border / 2, border / 2);
t->uv_rect.size = items[i].pixel_size;
t->uv_rect.position /= Size2(texture_atlas.size);
t->uv_rect.size /= Size2(texture_atlas.size);
}
} else {
texture_atlas.size.width = 4;
texture_atlas.size.height = 4;
}
{ // Atlas Texture initialize.
// TODO validate texture atlas size with maximum texture size
glGenTextures(1, &texture_atlas.texture);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture_atlas.texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, texture_atlas.size.width, texture_atlas.size.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1);
glGenFramebuffers(1, &texture_atlas.framebuffer);
glBindFramebuffer(GL_FRAMEBUFFER, texture_atlas.framebuffer);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture_atlas.texture, 0);
GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (status != GL_FRAMEBUFFER_COMPLETE) {
glDeleteFramebuffers(1, &texture_atlas.framebuffer);
texture_atlas.framebuffer = 0;
glDeleteTextures(1, &texture_atlas.texture);
texture_atlas.texture = 0;
WARN_PRINT("Could not create texture atlas, status: " + get_framebuffer_error(status));
return;
}
glViewport(0, 0, texture_atlas.size.width, texture_atlas.size.height);
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
glBindTexture(GL_TEXTURE_2D, 0);
}
glDisable(GL_BLEND);
if (texture_atlas.textures.size()) {
for (const KeyValue<RID, TextureAtlas::Texture> &E : texture_atlas.textures) {
TextureAtlas::Texture *t = texture_atlas.textures.getptr(E.key);
Texture *src_tex = get_texture(E.key);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, src_tex->tex_id);
copy_effects->copy_to_rect(t->uv_rect);
}
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
/* DECAL API */
RID TextureStorage::decal_allocate() {
return RID();
}
void TextureStorage::decal_initialize(RID p_rid) {
}
void TextureStorage::decal_set_extents(RID p_decal, const Vector3 &p_extents) {
}
void TextureStorage::decal_set_texture(RID p_decal, RS::DecalTexture p_type, RID p_texture) {
}
void TextureStorage::decal_set_emission_energy(RID p_decal, float p_energy) {
}
void TextureStorage::decal_set_albedo_mix(RID p_decal, float p_mix) {
}
void TextureStorage::decal_set_modulate(RID p_decal, const Color &p_modulate) {
}
void TextureStorage::decal_set_cull_mask(RID p_decal, uint32_t p_layers) {
}
void TextureStorage::decal_set_distance_fade(RID p_decal, bool p_enabled, float p_begin, float p_length) {
}
void TextureStorage::decal_set_fade(RID p_decal, float p_above, float p_below) {
}
void TextureStorage::decal_set_normal_fade(RID p_decal, float p_fade) {
}
AABB TextureStorage::decal_get_aabb(RID p_decal) const {
return AABB();
}
/* DECAL INSTANCE API */
RID TextureStorage::decal_instance_create(RID p_decal) {
return RID();
}
void TextureStorage::decal_instance_free(RID p_decal_instance) {
}
void TextureStorage::decal_instance_set_transform(RID p_decal, const Transform3D &p_transform) {
}
/* RENDER TARGET API */
GLuint TextureStorage::system_fbo = 0;
void TextureStorage::_update_render_target(RenderTarget *rt) {
// do not allocate a render target with no size
if (rt->size.x <= 0 || rt->size.y <= 0) {
return;
}
// do not allocate a render target that is attached to the screen
if (rt->direct_to_screen) {
rt->fbo = system_fbo;
return;
}
Config *config = Config::get_singleton();
rt->color_internal_format = rt->is_transparent ? GL_RGBA8 : GL_RGB10_A2;
rt->color_format = GL_RGBA;
rt->color_type = rt->is_transparent ? GL_UNSIGNED_BYTE : GL_UNSIGNED_INT_2_10_10_10_REV;
rt->image_format = Image::FORMAT_RGBA8;
glDisable(GL_SCISSOR_TEST);
glColorMask(1, 1, 1, 1);
glDepthMask(GL_FALSE);
{
Texture *texture;
bool use_multiview = rt->view_count > 1 && config->multiview_supported;
GLenum texture_target = use_multiview ? GL_TEXTURE_2D_ARRAY : GL_TEXTURE_2D;
/* Front FBO */
glGenFramebuffers(1, &rt->fbo);
glBindFramebuffer(GL_FRAMEBUFFER, rt->fbo);
// color
if (rt->overridden.color.is_valid()) {
texture = get_texture(rt->overridden.color);
ERR_FAIL_COND(!texture);
rt->color = texture->tex_id;
rt->size = Size2i(texture->width, texture->height);
} else {
texture = get_texture(rt->texture);
ERR_FAIL_COND(!texture);
glGenTextures(1, &rt->color);
glBindTexture(texture_target, rt->color);
if (use_multiview) {
glTexImage3D(texture_target, 0, rt->color_internal_format, rt->size.x, rt->size.y, rt->view_count, 0, rt->color_format, rt->color_type, nullptr);
} else {
glTexImage2D(texture_target, 0, rt->color_internal_format, rt->size.x, rt->size.y, 0, rt->color_format, rt->color_type, nullptr);
}
glTexParameteri(texture_target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(texture_target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(texture_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(texture_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
if (use_multiview) {
glFramebufferTextureMultiviewOVR(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, rt->color, 0, 0, rt->view_count);
} else {
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->color, 0);
}
// depth
if (rt->overridden.depth.is_valid()) {
texture = get_texture(rt->overridden.depth);
ERR_FAIL_COND(!texture);
rt->depth = texture->tex_id;
} else {
glGenTextures(1, &rt->depth);
glBindTexture(texture_target, rt->depth);
if (use_multiview) {
glTexImage3D(texture_target, 0, GL_DEPTH_COMPONENT24, rt->size.x, rt->size.y, rt->view_count, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, nullptr);
} else {
glTexImage2D(texture_target, 0, GL_DEPTH_COMPONENT24, rt->size.x, rt->size.y, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, nullptr);
}
glTexParameteri(texture_target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(texture_target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(texture_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(texture_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
if (use_multiview) {
glFramebufferTextureMultiviewOVR(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, rt->depth, 0, 0, rt->view_count);
} else {
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, rt->depth, 0);
}
GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (status != GL_FRAMEBUFFER_COMPLETE) {
glDeleteFramebuffers(1, &rt->fbo);
glDeleteTextures(1, &rt->color);
rt->fbo = 0;
rt->size.x = 0;
rt->size.y = 0;
rt->color = 0;
rt->depth = 0;
if (rt->overridden.color.is_null()) {
texture->tex_id = 0;
texture->active = false;
}
WARN_PRINT("Could not create render target, status: " + get_framebuffer_error(status));
return;
}
if (rt->overridden.color.is_valid()) {
texture->is_render_target = true;
} else {
texture->format = rt->image_format;
texture->real_format = rt->image_format;
texture->target = texture_target;
if (rt->view_count > 1 && config->multiview_supported) {
texture->type = Texture::TYPE_LAYERED;
texture->layers = rt->view_count;
} else {
texture->type = Texture::TYPE_2D;
texture->layers = 1;
}
texture->gl_format_cache = rt->color_format;
texture->gl_type_cache = GL_UNSIGNED_BYTE;
texture->gl_internal_format_cache = rt->color_internal_format;
texture->tex_id = rt->color;
texture->width = rt->size.x;
texture->alloc_width = rt->size.x;
texture->height = rt->size.y;
texture->alloc_height = rt->size.y;
texture->active = true;
}
}
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, system_fbo);
}
void TextureStorage::_create_render_target_backbuffer(RenderTarget *rt) {
ERR_FAIL_COND_MSG(rt->backbuffer_fbo != 0, "Cannot allocate RenderTarget backbuffer: already initialized.");
ERR_FAIL_COND(rt->direct_to_screen);
// Allocate mipmap chains for full screen blur
// Limit mipmaps so smallest is 32x32 to avoid unnecessary framebuffer switches
int count = MAX(1, Image::get_image_required_mipmaps(rt->size.x, rt->size.y, Image::FORMAT_RGBA8) - 4);
if (rt->size.x > 40 && rt->size.y > 40) {
GLsizei width = rt->size.x;
GLsizei height = rt->size.y;
rt->mipmap_count = count;
glGenTextures(1, &rt->backbuffer);
glBindTexture(GL_TEXTURE_2D, rt->backbuffer);
for (int l = 0; l < count; l++) {
glTexImage2D(GL_TEXTURE_2D, l, rt->color_internal_format, width, height, 0, rt->color_format, rt->color_type, nullptr);
width = MAX(1, (width / 2));
height = MAX(1, (height / 2));
}
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, count - 1);
glGenFramebuffers(1, &rt->backbuffer_fbo);
glBindFramebuffer(GL_FRAMEBUFFER, rt->backbuffer_fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->backbuffer, 0);
GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (status != GL_FRAMEBUFFER_COMPLETE) {
WARN_PRINT_ONCE("Cannot allocate mipmaps for canvas screen blur. Status: " + get_framebuffer_error(status));
glBindFramebuffer(GL_FRAMEBUFFER, system_fbo);
return;
}
// Initialize all levels to opaque Magenta.
for (int j = 0; j < count; j++) {
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->backbuffer, j);
glClearColor(1.0, 0.0, 1.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT);
}
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->backbuffer, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
}
void TextureStorage::_clear_render_target(RenderTarget *rt) {
// there is nothing to clear when DIRECT_TO_SCREEN is used
if (rt->direct_to_screen) {
return;
}
if (rt->fbo) {
glDeleteFramebuffers(1, &rt->fbo);
rt->fbo = 0;
}
if (rt->overridden.color.is_null()) {
glDeleteTextures(1, &rt->color);
rt->color = 0;
}
if (rt->overridden.depth.is_null()) {
glDeleteTextures(1, &rt->depth);
rt->depth = 0;
}
if (rt->texture.is_valid()) {
Texture *tex = get_texture(rt->texture);
tex->alloc_height = 0;
tex->alloc_width = 0;
tex->width = 0;
tex->height = 0;
tex->active = false;
}
if (rt->overridden.color.is_valid()) {
Texture *tex = get_texture(rt->overridden.color);
tex->is_render_target = false;
}
if (rt->backbuffer_fbo != 0) {
glDeleteFramebuffers(1, &rt->backbuffer_fbo);
glDeleteTextures(1, &rt->backbuffer);
rt->backbuffer = 0;
rt->backbuffer_fbo = 0;
}
_render_target_clear_sdf(rt);
}
void TextureStorage::_clear_render_target_overridden_fbo_cache(RenderTarget *rt) {
// Dispose of the cached fbo's and the allocated textures
for (KeyValue<uint32_t, RenderTarget::RTOverridden::FBOCacheEntry> &E : rt->overridden.fbo_cache) {
glDeleteTextures(E.value.allocated_textures.size(), E.value.allocated_textures.ptr());
glDeleteFramebuffers(1, &E.value.fbo);
}
rt->overridden.fbo_cache.clear();
}
RID TextureStorage::render_target_create() {
RenderTarget render_target;
//render_target.was_used = false;
render_target.clear_requested = false;
Texture t;
t.active = true;
t.render_target = &render_target;
t.is_render_target = true;
render_target.texture = texture_owner.make_rid(t);
_update_render_target(&render_target);
return render_target_owner.make_rid(render_target);
}
void TextureStorage::render_target_free(RID p_rid) {
RenderTarget *rt = render_target_owner.get_or_null(p_rid);
_clear_render_target(rt);
_clear_render_target_overridden_fbo_cache(rt);
Texture *t = get_texture(rt->texture);
if (t) {
t->is_render_target = false;
if (rt->overridden.color.is_null()) {
texture_free(rt->texture);
}
//memdelete(t);
}
render_target_owner.free(p_rid);
}
void TextureStorage::render_target_set_position(RID p_render_target, int p_x, int p_y) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
rt->position = Point2i(p_x, p_y);
}
Point2i TextureStorage::render_target_get_position(RID p_render_target) const {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, Point2i());
return rt->position;
};
void TextureStorage::render_target_set_size(RID p_render_target, int p_width, int p_height, uint32_t p_view_count) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
if (p_width == rt->size.x && p_height == rt->size.y && p_view_count == rt->view_count) {
return;
}
if (rt->overridden.color.is_valid()) {
return;
}
_clear_render_target(rt);
rt->size = Size2i(p_width, p_height);
rt->view_count = p_view_count;
_update_render_target(rt);
}
// TODO: convert to Size2i internally
Size2i TextureStorage::render_target_get_size(RID p_render_target) const {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, Size2i());
return rt->size;
}
void TextureStorage::render_target_set_override(RID p_render_target, RID p_color_texture, RID p_depth_texture, RID p_velocity_texture) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
ERR_FAIL_COND(rt->direct_to_screen);
rt->overridden.velocity = p_velocity_texture;
if (rt->overridden.color == p_color_texture && rt->overridden.depth == p_depth_texture) {
return;
}
if (p_color_texture.is_null() && p_depth_texture.is_null()) {
_clear_render_target(rt);
rt->overridden.is_overridden = false;
rt->overridden.color = RID();
rt->overridden.depth = RID();
rt->size = Size2i();
_clear_render_target_overridden_fbo_cache(rt);
return;
}
if (!rt->overridden.is_overridden) {
_clear_render_target(rt);
}
rt->overridden.color = p_color_texture;
rt->overridden.depth = p_depth_texture;
rt->overridden.is_overridden = true;
uint32_t hash_key = hash_murmur3_one_64(p_color_texture.get_id());
hash_key = hash_murmur3_one_64(p_depth_texture.get_id(), hash_key);
hash_key = hash_fmix32(hash_key);
RBMap<uint32_t, RenderTarget::RTOverridden::FBOCacheEntry>::Element *cache;
if ((cache = rt->overridden.fbo_cache.find(hash_key)) != nullptr) {
rt->fbo = cache->get().fbo;
rt->size = cache->get().size;
rt->texture = p_color_texture;
return;
}
_update_render_target(rt);
RenderTarget::RTOverridden::FBOCacheEntry new_entry;
new_entry.fbo = rt->fbo;
new_entry.size = rt->size;
// Keep track of any textures we had to allocate because they weren't overridden.
if (p_color_texture.is_null()) {
new_entry.allocated_textures.push_back(rt->color);
}
if (p_depth_texture.is_null()) {
new_entry.allocated_textures.push_back(rt->depth);
}
rt->overridden.fbo_cache.insert(hash_key, new_entry);
}
RID TextureStorage::render_target_get_override_color(RID p_render_target) const {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, RID());
return rt->overridden.color;
}
RID TextureStorage::render_target_get_override_depth(RID p_render_target) const {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, RID());
return rt->overridden.depth;
}
RID TextureStorage::render_target_get_override_velocity(RID p_render_target) const {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, RID());
return rt->overridden.velocity;
}
RID TextureStorage::render_target_get_texture(RID p_render_target) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, RID());
if (rt->overridden.color.is_valid()) {
return rt->overridden.color;
}
return rt->texture;
}
void TextureStorage::render_target_set_transparent(RID p_render_target, bool p_transparent) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
rt->is_transparent = p_transparent;
if (rt->overridden.color.is_null()) {
_clear_render_target(rt);
_update_render_target(rt);
}
}
bool TextureStorage::render_target_get_transparent(RID p_render_target) const {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, false);
return rt->is_transparent;
}
void TextureStorage::render_target_set_direct_to_screen(RID p_render_target, bool p_direct_to_screen) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
if (p_direct_to_screen == rt->direct_to_screen) {
return;
}
// When setting DIRECT_TO_SCREEN, you need to clear before the value is set, but allocate after as
// those functions change how they operate depending on the value of DIRECT_TO_SCREEN
_clear_render_target(rt);
rt->direct_to_screen = p_direct_to_screen;
if (rt->direct_to_screen) {
rt->overridden.color = RID();
rt->overridden.depth = RID();
rt->overridden.velocity = RID();
}
_update_render_target(rt);
}
bool TextureStorage::render_target_get_direct_to_screen(RID p_render_target) const {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, false);
return rt->direct_to_screen;
}
bool TextureStorage::render_target_was_used(RID p_render_target) const {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, false);
return rt->used_in_frame;
}
void TextureStorage::render_target_clear_used(RID p_render_target) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
rt->used_in_frame = false;
}
void TextureStorage::render_target_set_msaa(RID p_render_target, RS::ViewportMSAA p_msaa) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
if (p_msaa == rt->msaa) {
return;
}
WARN_PRINT("2D MSAA is not yet supported for GLES3.");
_clear_render_target(rt);
rt->msaa = p_msaa;
_update_render_target(rt);
}
RS::ViewportMSAA TextureStorage::render_target_get_msaa(RID p_render_target) const {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, RS::VIEWPORT_MSAA_DISABLED);
return rt->msaa;
}
void TextureStorage::render_target_request_clear(RID p_render_target, const Color &p_clear_color) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
rt->clear_requested = true;
rt->clear_color = p_clear_color;
}
bool TextureStorage::render_target_is_clear_requested(RID p_render_target) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, false);
return rt->clear_requested;
}
Color TextureStorage::render_target_get_clear_request_color(RID p_render_target) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, Color());
return rt->clear_color;
}
void TextureStorage::render_target_disable_clear_request(RID p_render_target) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
rt->clear_requested = false;
}
void TextureStorage::render_target_do_clear_request(RID p_render_target) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
if (!rt->clear_requested) {
return;
}
glBindFramebuffer(GL_FRAMEBUFFER, rt->fbo);
glClearBufferfv(GL_COLOR, 0, rt->clear_color.components);
rt->clear_requested = false;
glBindFramebuffer(GL_FRAMEBUFFER, system_fbo);
}
void TextureStorage::render_target_set_sdf_size_and_scale(RID p_render_target, RS::ViewportSDFOversize p_size, RS::ViewportSDFScale p_scale) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
if (rt->sdf_oversize == p_size && rt->sdf_scale == p_scale) {
return;
}
rt->sdf_oversize = p_size;
rt->sdf_scale = p_scale;
_render_target_clear_sdf(rt);
}
Rect2i TextureStorage::_render_target_get_sdf_rect(const RenderTarget *rt) const {
Size2i margin;
int scale;
switch (rt->sdf_oversize) {
case RS::VIEWPORT_SDF_OVERSIZE_100_PERCENT: {
scale = 100;
} break;
case RS::VIEWPORT_SDF_OVERSIZE_120_PERCENT: {
scale = 120;
} break;
case RS::VIEWPORT_SDF_OVERSIZE_150_PERCENT: {
scale = 150;
} break;
case RS::VIEWPORT_SDF_OVERSIZE_200_PERCENT: {
scale = 200;
} break;
default: {
}
}
margin = (rt->size * scale / 100) - rt->size;
Rect2i r(Vector2i(), rt->size);
r.position -= margin;
r.size += margin * 2;
return r;
}
Rect2i TextureStorage::render_target_get_sdf_rect(RID p_render_target) const {
const RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, Rect2i());
return _render_target_get_sdf_rect(rt);
}
void TextureStorage::render_target_mark_sdf_enabled(RID p_render_target, bool p_enabled) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
rt->sdf_enabled = p_enabled;
}
bool TextureStorage::render_target_is_sdf_enabled(RID p_render_target) const {
const RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, false);
return rt->sdf_enabled;
}
GLuint TextureStorage::render_target_get_sdf_texture(RID p_render_target) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, 0);
if (rt->sdf_texture_read == 0) {
Texture *texture = texture_owner.get_or_null(default_gl_textures[DEFAULT_GL_TEXTURE_BLACK]);
return texture->tex_id;
}
return rt->sdf_texture_read;
}
void TextureStorage::_render_target_allocate_sdf(RenderTarget *rt) {
ERR_FAIL_COND(rt->sdf_texture_write_fb != 0);
Size2i size = _render_target_get_sdf_rect(rt).size;
glGenTextures(1, &rt->sdf_texture_write);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, rt->sdf_texture_write);
glTexImage2D(GL_TEXTURE_2D, 0, GL_R8, size.width, size.height, 0, GL_RED, GL_UNSIGNED_BYTE, nullptr);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glGenFramebuffers(1, &rt->sdf_texture_write_fb);
glBindFramebuffer(GL_FRAMEBUFFER, rt->sdf_texture_write_fb);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->sdf_texture_write, 0);
int scale;
switch (rt->sdf_scale) {
case RS::VIEWPORT_SDF_SCALE_100_PERCENT: {
scale = 100;
} break;
case RS::VIEWPORT_SDF_SCALE_50_PERCENT: {
scale = 50;
} break;
case RS::VIEWPORT_SDF_SCALE_25_PERCENT: {
scale = 25;
} break;
default: {
scale = 100;
} break;
}
rt->process_size = size * scale / 100;
rt->process_size.x = MAX(rt->process_size.x, 1);
rt->process_size.y = MAX(rt->process_size.y, 1);
glGenTextures(2, rt->sdf_texture_process);
glBindTexture(GL_TEXTURE_2D, rt->sdf_texture_process[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RG16I, rt->process_size.width, rt->process_size.height, 0, GL_RG_INTEGER, GL_SHORT, nullptr);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, rt->sdf_texture_process[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RG16I, rt->process_size.width, rt->process_size.height, 0, GL_RG_INTEGER, GL_SHORT, nullptr);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glGenTextures(1, &rt->sdf_texture_read);
glBindTexture(GL_TEXTURE_2D, rt->sdf_texture_read);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, rt->process_size.width, rt->process_size.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
void TextureStorage::_render_target_clear_sdf(RenderTarget *rt) {
if (rt->sdf_texture_write_fb != 0) {
glDeleteTextures(1, &rt->sdf_texture_read);
glDeleteTextures(1, &rt->sdf_texture_write);
glDeleteTextures(2, rt->sdf_texture_process);
glDeleteFramebuffers(1, &rt->sdf_texture_write_fb);
rt->sdf_texture_read = 0;
rt->sdf_texture_write = 0;
rt->sdf_texture_process[0] = 0;
rt->sdf_texture_process[1] = 0;
rt->sdf_texture_write_fb = 0;
}
}
GLuint TextureStorage::render_target_get_sdf_framebuffer(RID p_render_target) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND_V(!rt, 0);
if (rt->sdf_texture_write_fb == 0) {
_render_target_allocate_sdf(rt);
}
return rt->sdf_texture_write_fb;
}
void TextureStorage::render_target_sdf_process(RID p_render_target) {
CopyEffects *copy_effects = CopyEffects::get_singleton();
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
ERR_FAIL_COND(rt->sdf_texture_write_fb == 0);
Rect2i r = _render_target_get_sdf_rect(rt);
Size2i size = r.size;
int32_t shift = 0;
bool shrink = false;
switch (rt->sdf_scale) {
case RS::VIEWPORT_SDF_SCALE_50_PERCENT: {
size[0] >>= 1;
size[1] >>= 1;
shift = 1;
shrink = true;
} break;
case RS::VIEWPORT_SDF_SCALE_25_PERCENT: {
size[0] >>= 2;
size[1] >>= 2;
shift = 2;
shrink = true;
} break;
default: {
};
}
GLuint temp_fb;
glGenFramebuffers(1, &temp_fb);
glBindFramebuffer(GL_FRAMEBUFFER, temp_fb);
// Load
CanvasSdfShaderGLES3::ShaderVariant variant = shrink ? CanvasSdfShaderGLES3::MODE_LOAD_SHRINK : CanvasSdfShaderGLES3::MODE_LOAD;
bool success = sdf_shader.shader.version_bind_shader(sdf_shader.shader_version, variant);
if (!success) {
return;
}
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::BASE_SIZE, r.size, sdf_shader.shader_version, variant);
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::SIZE, size, sdf_shader.shader_version, variant);
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::STRIDE, 0, sdf_shader.shader_version, variant);
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::SHIFT, shift, sdf_shader.shader_version, variant);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, rt->sdf_texture_write);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->sdf_texture_process[0], 0);
glViewport(0, 0, size.width, size.height);
glEnable(GL_SCISSOR_TEST);
glScissor(0, 0, size.width, size.height);
copy_effects->draw_screen_triangle();
// Process
int stride = nearest_power_of_2_templated(MAX(size.width, size.height) / 2);
variant = CanvasSdfShaderGLES3::MODE_PROCESS;
success = sdf_shader.shader.version_bind_shader(sdf_shader.shader_version, variant);
if (!success) {
return;
}
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::BASE_SIZE, r.size, sdf_shader.shader_version, variant);
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::SIZE, size, sdf_shader.shader_version, variant);
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::STRIDE, stride, sdf_shader.shader_version, variant);
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::SHIFT, shift, sdf_shader.shader_version, variant);
bool swap = false;
//jumpflood
while (stride > 0) {
glBindTexture(GL_TEXTURE_2D, 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->sdf_texture_process[swap ? 0 : 1], 0);
glBindTexture(GL_TEXTURE_2D, rt->sdf_texture_process[swap ? 1 : 0]);
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::STRIDE, stride, sdf_shader.shader_version, variant);
copy_effects->draw_screen_triangle();
stride /= 2;
swap = !swap;
}
// Store
variant = shrink ? CanvasSdfShaderGLES3::MODE_STORE_SHRINK : CanvasSdfShaderGLES3::MODE_STORE;
success = sdf_shader.shader.version_bind_shader(sdf_shader.shader_version, variant);
if (!success) {
return;
}
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::BASE_SIZE, r.size, sdf_shader.shader_version, variant);
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::SIZE, size, sdf_shader.shader_version, variant);
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::STRIDE, stride, sdf_shader.shader_version, variant);
sdf_shader.shader.version_set_uniform(CanvasSdfShaderGLES3::SHIFT, shift, sdf_shader.shader_version, variant);
glBindTexture(GL_TEXTURE_2D, 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->sdf_texture_read, 0);
glBindTexture(GL_TEXTURE_2D, rt->sdf_texture_process[swap ? 1 : 0]);
copy_effects->draw_screen_triangle();
glBindTexture(GL_TEXTURE_2D, 0);
glBindFramebuffer(GL_FRAMEBUFFER, system_fbo);
glDeleteFramebuffers(1, &temp_fb);
glDisable(GL_SCISSOR_TEST);
}
void TextureStorage::render_target_copy_to_back_buffer(RID p_render_target, const Rect2i &p_region, bool p_gen_mipmaps) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
ERR_FAIL_COND(rt->direct_to_screen);
if (rt->backbuffer_fbo == 0) {
_create_render_target_backbuffer(rt);
}
Rect2i region;
if (p_region == Rect2i()) {
region.size = rt->size;
} else {
region = Rect2i(Size2i(), rt->size).intersection(p_region);
if (region.size == Size2i()) {
return; //nothing to do
}
}
glDisable(GL_BLEND);
//single texture copy for backbuffer
glBindFramebuffer(GL_FRAMEBUFFER, rt->backbuffer_fbo);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, rt->color);
GLES3::CopyEffects::get_singleton()->copy_screen();
if (p_gen_mipmaps) {
GLES3::CopyEffects::get_singleton()->bilinear_blur(rt->backbuffer, rt->mipmap_count, region);
glBindFramebuffer(GL_FRAMEBUFFER, rt->backbuffer_fbo);
}
glEnable(GL_BLEND); // 2D almost always uses blend.
}
void TextureStorage::render_target_clear_back_buffer(RID p_render_target, const Rect2i &p_region, const Color &p_color) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
ERR_FAIL_COND(rt->direct_to_screen);
if (rt->backbuffer_fbo == 0) {
_create_render_target_backbuffer(rt);
}
Rect2i region;
if (p_region == Rect2i()) {
// Just do a full screen clear;
glBindFramebuffer(GL_FRAMEBUFFER, rt->backbuffer_fbo);
glClearColor(p_color.r, p_color.g, p_color.b, p_color.a);
glClear(GL_COLOR_BUFFER_BIT);
} else {
region = Rect2i(Size2i(), rt->size).intersection(p_region);
if (region.size == Size2i()) {
return; //nothing to do
}
glBindFramebuffer(GL_FRAMEBUFFER, rt->backbuffer_fbo);
GLES3::CopyEffects::get_singleton()->set_color(p_color, region);
}
}
void TextureStorage::render_target_gen_back_buffer_mipmaps(RID p_render_target, const Rect2i &p_region) {
RenderTarget *rt = render_target_owner.get_or_null(p_render_target);
ERR_FAIL_COND(!rt);
if (rt->backbuffer_fbo == 0) {
_create_render_target_backbuffer(rt);
}
Rect2i region;
if (p_region == Rect2i()) {
region.size = rt->size;
} else {
region = Rect2i(Size2i(), rt->size).intersection(p_region);
if (region.size == Size2i()) {
return; //nothing to do
}
}
GLES3::CopyEffects::get_singleton()->bilinear_blur(rt->backbuffer, rt->mipmap_count, region);
glBindFramebuffer(GL_FRAMEBUFFER, rt->backbuffer_fbo);
}
#endif // GLES3_ENABLED
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