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texture_storage.cpp
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texture_storage.cpp
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/**************************************************************************/
/* texture_storage.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. */
/**************************************************************************/
#ifdef GLES3_ENABLED
#include "texture_storage.h"
#include "../effects/copy_effects.h"
#include "../rasterizer_gles3.h"
#include "config.h"
#include "utilities.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);
GLES3::Utilities::get_singleton()->texture_allocated_data(texture.tex_id, 4 * 4 * 4, "Default uint texture");
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);
GLES3::Utilities::get_singleton()->texture_allocated_data(texture.tex_id, 4 * 4 * 2, "Default depth texture");
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);
GLES3::Utilities::get_singleton()->texture_allocated_data(texture_atlas.texture, 4 * 4 * 4, "Texture atlas (Default)");
}
glBindTexture(GL_TEXTURE_2D, 0);
{
sdf_shader.shader.initialize();
sdf_shader.shader_version = sdf_shader.shader.version_create();
}
#ifdef GL_API_ENABLED
if (RasterizerGLES3::is_gles_over_gl()) {
glEnable(GL_PROGRAM_POINT_SIZE);
}
#endif // GL_API_ENABLED
}
TextureStorage::~TextureStorage() {
singleton = nullptr;
for (int i = 0; i < DEFAULT_GL_TEXTURE_MAX; i++) {
texture_free(default_gl_textures[i]);
}
if (texture_atlas.texture != 0) {
GLES3::Utilities::get_singleton()->texture_free_data(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);
ERR_FAIL_NULL(ct);
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);
ERR_FAIL_NULL(ct);
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);
ERR_FAIL_NULL(ct);
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);
ERR_FAIL_NULL(ct);
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;
bool decompress_ra_to_rg = false;
switch (p_format) {
case Image::FORMAT_L8: {
if (RasterizerGLES3::is_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;
}
} break;
case Image::FORMAT_LA8: {
if (RasterizerGLES3::is_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;
}
} 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;
case Image::FORMAT_ETC2_RA_AS_RG: {
#ifndef WEB_ENABLED
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
#endif
{
need_decompress = true;
}
decompress_ra_to_rg = true;
} break;
case Image::FORMAT_DXT5_RA_AS_RG: {
#ifndef WEB_ENABLED
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
#endif
{
need_decompress = true;
}
decompress_ra_to_rg = true;
} break;
case Image::FORMAT_ASTC_4x4: {
if (config->astc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGBA_ASTC_4x4_KHR;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ASTC_4x4_HDR: {
if (config->astc_hdr_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGBA_ASTC_4x4_KHR;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ASTC_8x8: {
if (config->astc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGBA_ASTC_8x8_KHR;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ASTC_8x8_HDR: {
if (config->astc_hdr_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGBA_ASTC_8x8_KHR;
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>(), "The image format " + itos(p_format) + " is not supported by the GL Compatibility rendering backend.");
}
}
if (need_decompress || p_force_decompress) {
if (!image.is_null()) {
image = image->duplicate();
image->decompress();
ERR_FAIL_COND_V(image->is_compressed(), image);
if (decompress_ra_to_rg) {
image->convert_ra_rgba8_to_rg();
image->convert(Image::FORMAT_RG8);
}
switch (image->get_format()) {
case Image::FORMAT_RG8: {
r_gl_format = GL_RG;
r_gl_internal_format = GL_RG8;
r_gl_type = GL_UNSIGNED_BYTE;
r_real_format = Image::FORMAT_RG8;
r_compressed = false;
} break;
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_NULL(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) {
GLES3::Utilities::get_singleton()->texture_free_data(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(texture.width, texture.height, texture.format, texture.mipmaps);
texture.active = true;
glGenTextures(1, &texture.tex_id);
GLES3::Utilities::get_singleton()->texture_allocated_data(texture.tex_id, texture.total_data_size, "Texture 2D");
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) {
ERR_FAIL_COND(p_layers.is_empty());
ERR_FAIL_COND(p_layered_type == RS::TEXTURE_LAYERED_CUBEMAP && p_layers.size() != 6);
ERR_FAIL_COND_MSG(p_layered_type == RS::TEXTURE_LAYERED_CUBEMAP_ARRAY, "Cubemap Arrays are not supported in the GL Compatibility backend.");
Ref<Image> image = p_layers[0];
{
int valid_width = 0;
int valid_height = 0;
bool valid_mipmaps = false;
Image::Format valid_format = Image::FORMAT_MAX;
for (int i = 0; i < p_layers.size(); i++) {
ERR_FAIL_COND(p_layers[i]->is_empty());
if (i == 0) {
valid_width = p_layers[i]->get_width();
valid_height = p_layers[i]->get_height();
valid_format = p_layers[i]->get_format();
valid_mipmaps = p_layers[i]->has_mipmaps();
} else {
ERR_FAIL_COND(p_layers[i]->get_width() != valid_width);
ERR_FAIL_COND(p_layers[i]->get_height() != valid_height);
ERR_FAIL_COND(p_layers[i]->get_format() != valid_format);
ERR_FAIL_COND(p_layers[i]->has_mipmaps() != valid_mipmaps);
}
}
}
Texture texture;
texture.width = image->get_width();
texture.height = image->get_height();
texture.alloc_width = texture.width;
texture.alloc_height = texture.height;
texture.mipmaps = image->get_mipmap_count() + 1;
texture.format = image->get_format();
texture.type = Texture::TYPE_LAYERED;
texture.layered_type = p_layered_type;
texture.target = p_layered_type == RS::TEXTURE_LAYERED_CUBEMAP ? GL_TEXTURE_CUBE_MAP : GL_TEXTURE_2D_ARRAY;
texture.layers = p_layers.size();
_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_layers[0]->get_image_data_size(texture.width, texture.height, texture.format, texture.mipmaps) * texture.layers;
texture.active = true;
glGenTextures(1, &texture.tex_id);
GLES3::Utilities::get_singleton()->texture_allocated_data(texture.tex_id, texture.total_data_size, "Texture Layered");
texture_owner.initialize_rid(p_texture, texture);
for (int i = 0; i < p_layers.size(); i++) {
_texture_set_data(p_texture, p_layers[i], i, i == 0);
}
}
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_NULL(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(GLES3::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);
Texture *tex = texture_owner.get_or_null(p_texture);
ERR_FAIL_NULL(tex);
GLES3::Utilities::get_singleton()->texture_resize_data(tex->tex_id, tex->total_data_size);
#ifdef TOOLS_ENABLED
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_NULL(tex);
ERR_FAIL_COND(!tex->is_proxy);
Texture *proxy_to = texture_owner.get_or_null(p_proxy_to);
ERR_FAIL_NULL(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_NULL(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();
tex->canvas_texture = nullptr;
tex->tex_id = 0;
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_NULL_V(texture, Ref<Image>());
#ifdef TOOLS_ENABLED
if (texture->image_cache_2d.is_valid() && !texture->is_render_target) {
return texture->image_cache_2d;
}
#endif
Ref<Image> image;
#ifdef GL_API_ENABLED
if (RasterizerGLES3::is_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>());
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);
}
}
#endif // GL_API_ENABLED
#ifdef GLES_API_ENABLED
if (!RasterizerGLES3::is_gles_over_gl()) {
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);