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rasterizer_storage_gles2.cpp
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/*************************************************************************/
/* rasterizer_storage_gles2.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 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. */
/*************************************************************************/
#include "rasterizer_storage_gles2.h"
#include "core/math/transform.h"
#include "core/project_settings.h"
#include "rasterizer_canvas_gles2.h"
#include "rasterizer_scene_gles2.h"
#include "servers/visual/shader_language.h"
GLuint RasterizerStorageGLES2::system_fbo = 0;
/* TEXTURE API */
#define _EXT_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1
#define _EXT_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
#define _EXT_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
#define _EXT_COMPRESSED_RED_RGTC1_EXT 0x8DBB
#define _EXT_COMPRESSED_RED_RGTC1 0x8DBB
#define _EXT_COMPRESSED_SIGNED_RED_RGTC1 0x8DBC
#define _EXT_COMPRESSED_RG_RGTC2 0x8DBD
#define _EXT_COMPRESSED_SIGNED_RG_RGTC2 0x8DBE
#define _EXT_COMPRESSED_SIGNED_RED_RGTC1_EXT 0x8DBC
#define _EXT_COMPRESSED_RED_GREEN_RGTC2_EXT 0x8DBD
#define _EXT_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT 0x8DBE
#define _EXT_ETC1_RGB8_OES 0x8D64
#define _EXT_COMPRESSED_RGB_PVRTC_4BPPV1_IMG 0x8C00
#define _EXT_COMPRESSED_RGB_PVRTC_2BPPV1_IMG 0x8C01
#define _EXT_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG 0x8C02
#define _EXT_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG 0x8C03
#define _EXT_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT 0x8A54
#define _EXT_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT 0x8A55
#define _EXT_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT 0x8A56
#define _EXT_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT 0x8A57
#define _EXT_COMPRESSED_RGBA_BPTC_UNORM 0x8E8C
#define _EXT_COMPRESSED_SRGB_ALPHA_BPTC_UNORM 0x8E8D
#define _EXT_COMPRESSED_RGB_BPTC_SIGNED_FLOAT 0x8E8E
#define _EXT_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT 0x8E8F
#define _GL_TEXTURE_EXTERNAL_OES 0x8D65
#ifdef GLES_OVER_GL
#define _GL_HALF_FLOAT_OES 0x140B
#else
#define _GL_HALF_FLOAT_OES 0x8D61
#endif
#define _EXT_TEXTURE_CUBE_MAP_SEAMLESS 0x884F
#define _GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE
#define _GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF
#define _RED_OES 0x1903
#define _DEPTH_COMPONENT24_OES 0x81A6
#ifndef GLES_OVER_GL
#define glClearDepth glClearDepthf
// enable extensions manually for android and ios
#ifndef UWP_ENABLED
#include <dlfcn.h> // needed to load extensions
#endif
#ifdef IPHONE_ENABLED
#include <OpenGLES/ES2/glext.h>
//void *glRenderbufferStorageMultisampleAPPLE;
//void *glResolveMultisampleFramebufferAPPLE;
#define glRenderbufferStorageMultisample glRenderbufferStorageMultisampleAPPLE
#elif defined(ANDROID_ENABLED)
#include <GLES2/gl2ext.h>
PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC glRenderbufferStorageMultisampleEXT;
PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEEXTPROC glFramebufferTexture2DMultisampleEXT;
#define glRenderbufferStorageMultisample glRenderbufferStorageMultisampleEXT
#define glFramebufferTexture2DMultisample glFramebufferTexture2DMultisampleEXT
#elif defined(UWP_ENABLED)
#include <GLES2/gl2ext.h>
#define glRenderbufferStorageMultisample glRenderbufferStorageMultisampleANGLE
#define glFramebufferTexture2DMultisample glFramebufferTexture2DMultisampleANGLE
#endif
#define GL_TEXTURE_3D 0x806F
#define GL_MAX_SAMPLES 0x8D57
#endif //!GLES_OVER_GL
void RasterizerStorageGLES2::bind_quad_array() const {
glBindBuffer(GL_ARRAY_BUFFER, resources.quadie);
glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, nullptr);
glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, CAST_INT_TO_UCHAR_PTR(8));
glEnableVertexAttribArray(VS::ARRAY_VERTEX);
glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
}
Ref<Image> RasterizerStorageGLES2::_get_gl_image_and_format(const Ref<Image> &p_image, Image::Format p_format, uint32_t p_flags, 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 {
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: {
r_gl_internal_format = GL_LUMINANCE;
r_gl_format = GL_LUMINANCE;
r_gl_type = GL_UNSIGNED_BYTE;
} break;
case Image::FORMAT_LA8: {
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_ALPHA;
r_gl_format = GL_ALPHA;
r_gl_type = GL_UNSIGNED_BYTE;
} break;
case Image::FORMAT_RG8: {
ERR_PRINT("RG texture not supported, converting to RGB8.");
if (image.is_valid()) {
image->convert(Image::FORMAT_RGB8);
}
r_real_format = Image::FORMAT_RGB8;
r_gl_internal_format = GL_RGB;
r_gl_format = GL_RGB;
r_gl_type = GL_UNSIGNED_BYTE;
} break;
case Image::FORMAT_RGB8: {
r_gl_internal_format = GL_RGB;
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_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
} break;
case Image::FORMAT_RGBA4444: {
r_gl_internal_format = GL_RGBA;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_SHORT_4_4_4_4;
} break;
case Image::FORMAT_RGBA5551: {
r_gl_internal_format = GL_RGB5_A1;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_SHORT_5_5_5_1;
} break;
case Image::FORMAT_RF: {
if (!config.float_texture_supported) {
ERR_PRINT("R float texture not supported, converting to RGB8.");
if (image.is_valid()) {
image->convert(Image::FORMAT_RGB8);
}
r_real_format = Image::FORMAT_RGB8;
r_gl_internal_format = GL_RGB;
r_gl_format = GL_RGB;
r_gl_type = GL_UNSIGNED_BYTE;
} else {
r_gl_internal_format = GL_ALPHA;
r_gl_format = GL_ALPHA;
r_gl_type = GL_FLOAT;
}
} break;
case Image::FORMAT_RGF: {
ERR_PRINT("RG float texture not supported, converting to RGB8.");
if (image.is_valid()) {
image->convert(Image::FORMAT_RGB8);
}
r_real_format = Image::FORMAT_RGB8;
r_gl_internal_format = GL_RGB;
r_gl_format = GL_RGB;
r_gl_type = GL_UNSIGNED_BYTE;
} break;
case Image::FORMAT_RGBF: {
if (!config.float_texture_supported) {
ERR_PRINT("RGB float texture not supported, converting to RGB8.");
if (image.is_valid()) {
image->convert(Image::FORMAT_RGB8);
}
r_real_format = Image::FORMAT_RGB8;
r_gl_internal_format = GL_RGB;
r_gl_format = GL_RGB;
r_gl_type = GL_UNSIGNED_BYTE;
} else {
r_gl_internal_format = GL_RGB;
r_gl_format = GL_RGB;
r_gl_type = GL_FLOAT;
}
} break;
case Image::FORMAT_RGBAF: {
if (!config.float_texture_supported) {
ERR_PRINT("RGBA float texture not supported, converting to RGBA8.");
if (image.is_valid()) {
image->convert(Image::FORMAT_RGBA8);
}
r_real_format = Image::FORMAT_RGBA8;
r_gl_internal_format = GL_RGBA;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
} else {
r_gl_internal_format = GL_RGBA;
r_gl_format = GL_RGBA;
r_gl_type = GL_FLOAT;
}
} break;
case Image::FORMAT_RH: {
need_decompress = true;
} break;
case Image::FORMAT_RGH: {
need_decompress = true;
} break;
case Image::FORMAT_RGBH: {
need_decompress = true;
} break;
case Image::FORMAT_RGBAH: {
need_decompress = true;
} break;
case Image::FORMAT_RGBE9995: {
r_gl_internal_format = GL_RGB;
r_gl_format = GL_RGB;
r_gl_type = GL_UNSIGNED_BYTE;
if (image.is_valid()) {
image = image->rgbe_to_srgb();
}
return image;
} 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_PVRTC2: {
if (config.pvrtc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_PVRTC2A: {
if (config.pvrtc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_PVRTC4: {
if (config.pvrtc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_PVRTC4A: {
if (config.pvrtc_supported) {
r_gl_internal_format = _EXT_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ETC: {
if (config.etc1_supported) {
r_gl_internal_format = _EXT_ETC1_RGB8_OES;
r_gl_format = GL_RGBA;
r_gl_type = GL_UNSIGNED_BYTE;
r_compressed = true;
} else {
need_decompress = true;
}
} break;
case Image::FORMAT_ETC2_R11: {
need_decompress = true;
} break;
case Image::FORMAT_ETC2_R11S: {
need_decompress = true;
} break;
case Image::FORMAT_ETC2_RG11: {
need_decompress = true;
} break;
case Image::FORMAT_ETC2_RG11S: {
need_decompress = true;
} break;
case Image::FORMAT_ETC2_RGB8: {
need_decompress = true;
} break;
case Image::FORMAT_ETC2_RGBA8: {
need_decompress = true;
} break;
case Image::FORMAT_ETC2_RGB8A1: {
need_decompress = true;
} break;
default: {
ERR_FAIL_V(Ref<Image>());
}
}
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;
}
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,
};
RID RasterizerStorageGLES2::texture_create() {
Texture *texture = memnew(Texture);
ERR_FAIL_COND_V(!texture, RID());
glGenTextures(1, &texture->tex_id);
texture->active = false;
texture->total_data_size = 0;
return texture_owner.make_rid(texture);
}
void RasterizerStorageGLES2::texture_allocate(RID p_texture, int p_width, int p_height, int p_depth_3d, Image::Format p_format, VisualServer::TextureType p_type, uint32_t p_flags) {
GLenum format;
GLenum internal_format;
GLenum type;
bool compressed = false;
if (p_flags & VS::TEXTURE_FLAG_USED_FOR_STREAMING) {
p_flags &= ~VS::TEXTURE_FLAG_MIPMAPS; // no mipies for video
}
Texture *texture = texture_owner.getornull(p_texture);
ERR_FAIL_COND(!texture);
texture->width = p_width;
texture->height = p_height;
texture->format = p_format;
if (texture->width > config.max_texture_size || texture->height > config.max_texture_size) {
WARN_PRINT("Cannot create texture larger than maximum hardware supported size of " + itos(config.max_texture_size) + ". Setting size to maximum.");
texture->width = MIN(texture->width, config.max_texture_size);
texture->height = MIN(texture->height, config.max_texture_size);
}
texture->flags = p_flags;
texture->stored_cube_sides = 0;
texture->type = p_type;
switch (p_type) {
case VS::TEXTURE_TYPE_2D: {
texture->target = GL_TEXTURE_2D;
texture->images.resize(1);
} break;
case VS::TEXTURE_TYPE_EXTERNAL: {
#ifdef ANDROID_ENABLED
texture->target = _GL_TEXTURE_EXTERNAL_OES;
#else
texture->target = GL_TEXTURE_2D;
#endif
texture->images.resize(0);
} break;
case VS::TEXTURE_TYPE_CUBEMAP: {
texture->target = GL_TEXTURE_CUBE_MAP;
texture->images.resize(6);
} break;
case VS::TEXTURE_TYPE_2D_ARRAY:
case VS::TEXTURE_TYPE_3D: {
texture->target = GL_TEXTURE_3D;
ERR_PRINT("3D textures and Texture Arrays are not supported in GLES2. Please switch to the GLES3 backend.");
return;
} break;
default: {
ERR_PRINT("Unknown texture type!");
return;
}
}
if (p_type != VS::TEXTURE_TYPE_EXTERNAL) {
texture->alloc_width = texture->width;
texture->alloc_height = texture->height;
texture->resize_to_po2 = false;
if (!config.support_npot_repeat_mipmap) {
int po2_width = next_power_of_2(p_width);
int po2_height = next_power_of_2(p_height);
bool is_po2 = p_width == po2_width && p_height == po2_height;
if (!is_po2 && (p_flags & VS::TEXTURE_FLAG_REPEAT || p_flags & VS::TEXTURE_FLAG_MIPMAPS)) {
if (p_flags & VS::TEXTURE_FLAG_USED_FOR_STREAMING) {
//not supported
ERR_PRINT("Streaming texture for non power of 2 or has mipmaps on this hardware: " + texture->path + "'. Mipmaps and repeat disabled.");
texture->flags &= ~(VS::TEXTURE_FLAG_REPEAT | VS::TEXTURE_FLAG_MIPMAPS);
} else {
texture->alloc_height = po2_height;
texture->alloc_width = po2_width;
texture->resize_to_po2 = true;
}
}
}
Image::Format real_format;
_get_gl_image_and_format(Ref<Image>(),
texture->format,
texture->flags,
real_format,
format,
internal_format,
type,
compressed,
texture->resize_to_po2);
texture->gl_format_cache = format;
texture->gl_type_cache = type;
texture->gl_internal_format_cache = internal_format;
texture->data_size = 0;
texture->mipmaps = 1;
texture->compressed = compressed;
}
glActiveTexture(GL_TEXTURE0);
glBindTexture(texture->target, texture->tex_id);
if (p_type == VS::TEXTURE_TYPE_EXTERNAL) {
glTexParameteri(texture->target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(texture->target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(texture->target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(texture->target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
} else if (p_flags & VS::TEXTURE_FLAG_USED_FOR_STREAMING) {
//prealloc if video
glTexImage2D(texture->target, 0, internal_format, texture->alloc_width, texture->alloc_height, 0, format, type, nullptr);
}
texture->active = true;
}
void RasterizerStorageGLES2::texture_set_data(RID p_texture, const Ref<Image> &p_image, int p_layer) {
Texture *texture = texture_owner.getornull(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->render_target);
ERR_FAIL_COND(texture->format != p_image->get_format());
ERR_FAIL_COND(p_image.is_null());
ERR_FAIL_COND(texture->type == VS::TEXTURE_TYPE_EXTERNAL);
GLenum type;
GLenum format;
GLenum internal_format;
bool compressed = false;
if (config.keep_original_textures && !(texture->flags & VS::TEXTURE_FLAG_USED_FOR_STREAMING)) {
texture->images.write[p_layer] = p_image;
}
Image::Format real_format;
Ref<Image> img = _get_gl_image_and_format(p_image, p_image->get_format(), texture->flags, real_format, format, internal_format, type, compressed, texture->resize_to_po2);
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, texture->flags & VS::TEXTURE_FLAG_FILTER ? Image::INTERPOLATE_BILINEAR : Image::INTERPOLATE_NEAREST);
}
if (config.shrink_textures_x2 && (p_image->has_mipmaps() || !p_image->is_compressed()) && !(texture->flags & VS::TEXTURE_FLAG_USED_FOR_STREAMING)) {
texture->alloc_height = MAX(1, texture->alloc_height / 2);
texture->alloc_width = MAX(1, texture->alloc_width / 2);
if (texture->alloc_width == img->get_width() / 2 && texture->alloc_height == img->get_height() / 2) {
img->shrink_x2();
} else if (img->get_format() <= Image::FORMAT_RGBA8) {
img->resize(texture->alloc_width, texture->alloc_height, Image::INTERPOLATE_BILINEAR);
}
}
GLenum blit_target = (texture->target == GL_TEXTURE_CUBE_MAP) ? _cube_side_enum[p_layer] : GL_TEXTURE_2D;
texture->data_size = img->get_data().size();
PoolVector<uint8_t>::Read read = img->get_data().read();
ERR_FAIL_COND(!read.ptr());
glActiveTexture(GL_TEXTURE0);
glBindTexture(texture->target, texture->tex_id);
texture->ignore_mipmaps = compressed && !img->has_mipmaps();
if ((texture->flags & VS::TEXTURE_FLAG_MIPMAPS) && !texture->ignore_mipmaps) {
if (texture->flags & VS::TEXTURE_FLAG_FILTER) {
glTexParameteri(texture->target, GL_TEXTURE_MIN_FILTER, config.use_fast_texture_filter ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR_MIPMAP_LINEAR);
} else {
glTexParameteri(texture->target, GL_TEXTURE_MIN_FILTER, config.use_fast_texture_filter ? GL_NEAREST_MIPMAP_NEAREST : GL_NEAREST_MIPMAP_LINEAR);
}
} else {
if (texture->flags & VS::TEXTURE_FLAG_FILTER) {
glTexParameteri(texture->target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
} else {
glTexParameteri(texture->target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
}
}
if (texture->flags & VS::TEXTURE_FLAG_FILTER) {
glTexParameteri(texture->target, GL_TEXTURE_MAG_FILTER, GL_LINEAR); // Linear Filtering
} else {
glTexParameteri(texture->target, GL_TEXTURE_MAG_FILTER, GL_NEAREST); // raw Filtering
}
if (((texture->flags & VS::TEXTURE_FLAG_REPEAT) || (texture->flags & VS::TEXTURE_FLAG_MIRRORED_REPEAT)) && texture->target != GL_TEXTURE_CUBE_MAP) {
if (texture->flags & VS::TEXTURE_FLAG_MIRRORED_REPEAT) {
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
} else {
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
} else {
//glTexParameterf( texture->target, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE );
glTexParameterf(texture->target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(texture->target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
if (config.use_anisotropic_filter) {
if (texture->flags & VS::TEXTURE_FLAG_ANISOTROPIC_FILTER) {
glTexParameterf(texture->target, _GL_TEXTURE_MAX_ANISOTROPY_EXT, config.anisotropic_level);
} else {
glTexParameterf(texture->target, _GL_TEXTURE_MAX_ANISOTROPY_EXT, 1);
}
}
int mipmaps = ((texture->flags & VS::TEXTURE_FLAG_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->flags & VS::TEXTURE_FLAG_USED_FOR_STREAMING) {
glTexSubImage2D(blit_target, i, 0, 0, w, h, 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;
texture->total_data_size = tsize;
info.texture_mem += texture->total_data_size;
// 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);
if ((texture->flags & VS::TEXTURE_FLAG_MIPMAPS) && mipmaps == 1 && !texture->ignore_mipmaps && (texture->type != VS::TEXTURE_TYPE_CUBEMAP || texture->stored_cube_sides == (1 << 6) - 1)) {
//generate mipmaps if they were requested and the image does not contain them
glGenerateMipmap(texture->target);
}
texture->mipmaps = mipmaps;
}
void RasterizerStorageGLES2::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) {
// TODO
ERR_PRINT("Not implemented (ask Karroffel to do it :p)");
}
Ref<Image> RasterizerStorageGLES2::texture_get_data(RID p_texture, int p_layer) const {
Texture *texture = texture_owner.getornull(p_texture);
ERR_FAIL_COND_V(!texture, Ref<Image>());
ERR_FAIL_COND_V(!texture->active, Ref<Image>());
ERR_FAIL_COND_V(texture->data_size == 0 && !texture->render_target, Ref<Image>());
if (texture->type == VS::TEXTURE_TYPE_CUBEMAP && p_layer < 6 && p_layer >= 0 && !texture->images[p_layer].is_null()) {
return texture->images[p_layer];
}
#ifdef GLES_OVER_GL
Image::Format real_format;
GLenum gl_format;
GLenum gl_internal_format;
GLenum gl_type;
bool compressed;
_get_gl_image_and_format(Ref<Image>(), texture->format, texture->flags, real_format, gl_format, gl_internal_format, gl_type, compressed, false);
PoolVector<uint8_t> data;
int data_size = Image::get_image_data_size(texture->alloc_width, texture->alloc_height, real_format, texture->mipmaps > 1);
data.resize(data_size * 2); //add some memory at the end, just in case for buggy drivers
PoolVector<uint8_t>::Write wb = data.write();
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, real_format, i);
if (texture->compressed) {
glPixelStorei(GL_PACK_ALIGNMENT, 4);
glGetCompressedTexImage(texture->target, i, &wb[ofs]);
} else {
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glGetTexImage(texture->target, i, texture->gl_format_cache, texture->gl_type_cache, &wb[ofs]);
}
}
wb.release();
data.resize(data_size);
Image *img = memnew(Image(texture->alloc_width, texture->alloc_height, texture->mipmaps > 1, real_format, data));
return Ref<Image>(img);
#else
Image::Format real_format;
GLenum gl_format;
GLenum gl_internal_format;
GLenum gl_type;
bool compressed;
_get_gl_image_and_format(Ref<Image>(), texture->format, texture->flags, real_format, gl_format, gl_internal_format, gl_type, compressed, texture->resize_to_po2);
PoolVector<uint8_t> data;
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
PoolVector<uint8_t>::Write wb = data.write();
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);
shaders.copy.bind();
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
bind_quad_array();
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glReadPixels(0, 0, texture->alloc_width, texture->alloc_height, GL_RGBA, GL_UNSIGNED_BYTE, &wb[0]);
glDeleteTextures(1, &temp_color_texture);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glDeleteFramebuffers(1, &temp_framebuffer);
wb.release();
data.resize(data_size);
Image *img = memnew(Image(texture->alloc_width, texture->alloc_height, false, Image::FORMAT_RGBA8, data));
if (!texture->compressed) {
img->convert(real_format);
}
return Ref<Image>(img);
#endif
}
void RasterizerStorageGLES2::texture_set_flags(RID p_texture, uint32_t p_flags) {
Texture *texture = texture_owner.getornull(p_texture);
ERR_FAIL_COND(!texture);
bool had_mipmaps = texture->flags & VS::TEXTURE_FLAG_MIPMAPS;
texture->flags = p_flags;
glActiveTexture(GL_TEXTURE0);
glBindTexture(texture->target, texture->tex_id);
if (((texture->flags & VS::TEXTURE_FLAG_REPEAT) || (texture->flags & VS::TEXTURE_FLAG_MIRRORED_REPEAT)) && texture->target != GL_TEXTURE_CUBE_MAP) {
if (texture->flags & VS::TEXTURE_FLAG_MIRRORED_REPEAT) {
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
} else {
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
} else {
//glTexParameterf( texture->target, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE );
glTexParameterf(texture->target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(texture->target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
if (config.use_anisotropic_filter) {
if (texture->flags & VS::TEXTURE_FLAG_ANISOTROPIC_FILTER) {
glTexParameterf(texture->target, _GL_TEXTURE_MAX_ANISOTROPY_EXT, config.anisotropic_level);
} else {
glTexParameterf(texture->target, _GL_TEXTURE_MAX_ANISOTROPY_EXT, 1);
}
}
if ((texture->flags & VS::TEXTURE_FLAG_MIPMAPS) && !texture->ignore_mipmaps) {
if (!had_mipmaps && texture->mipmaps == 1) {
glGenerateMipmap(texture->target);
}
if (texture->flags & VS::TEXTURE_FLAG_FILTER) {
glTexParameteri(texture->target, GL_TEXTURE_MIN_FILTER, config.use_fast_texture_filter ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR_MIPMAP_LINEAR);
} else {
glTexParameteri(texture->target, GL_TEXTURE_MIN_FILTER, config.use_fast_texture_filter ? GL_NEAREST_MIPMAP_NEAREST : GL_NEAREST_MIPMAP_LINEAR);
}
} else {
if (texture->flags & VS::TEXTURE_FLAG_FILTER) {
glTexParameteri(texture->target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
} else {
glTexParameteri(texture->target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
}
}
if (texture->flags & VS::TEXTURE_FLAG_FILTER) {
glTexParameteri(texture->target, GL_TEXTURE_MAG_FILTER, GL_LINEAR); // Linear Filtering
} else {
glTexParameteri(texture->target, GL_TEXTURE_MAG_FILTER, GL_NEAREST); // raw Filtering
}
}
uint32_t RasterizerStorageGLES2::texture_get_flags(RID p_texture) const {
Texture *texture = texture_owner.getornull(p_texture);
ERR_FAIL_COND_V(!texture, 0);
return texture->flags;
}
Image::Format RasterizerStorageGLES2::texture_get_format(RID p_texture) const {
Texture *texture = texture_owner.getornull(p_texture);
ERR_FAIL_COND_V(!texture, Image::FORMAT_L8);
return texture->format;
}
VisualServer::TextureType RasterizerStorageGLES2::texture_get_type(RID p_texture) const {
Texture *texture = texture_owner.getornull(p_texture);
ERR_FAIL_COND_V(!texture, VS::TEXTURE_TYPE_2D);
return texture->type;
}
uint32_t RasterizerStorageGLES2::texture_get_texid(RID p_texture) const {
Texture *texture = texture_owner.getornull(p_texture);
ERR_FAIL_COND_V(!texture, 0);
return texture->tex_id;
}
void RasterizerStorageGLES2::texture_bind(RID p_texture, uint32_t p_texture_no) {
Texture *texture = texture_owner.getornull(p_texture);
ERR_FAIL_COND(!texture);
glActiveTexture(GL_TEXTURE0 + p_texture_no);
glBindTexture(texture->target, texture->tex_id);
}
uint32_t RasterizerStorageGLES2::texture_get_width(RID p_texture) const {
Texture *texture = texture_owner.getornull(p_texture);
ERR_FAIL_COND_V(!texture, 0);
return texture->width;