153 lines
6.7 KiB
C++
153 lines
6.7 KiB
C++
/*************************************************************************/
|
|
/* config.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 "config.h"
|
|
#include "core/templates/vector.h"
|
|
|
|
using namespace GLES3;
|
|
|
|
Config *Config::singleton = nullptr;
|
|
|
|
Config::Config() {
|
|
singleton = this;
|
|
|
|
{
|
|
const GLubyte *extension_string = glGetString(GL_EXTENSIONS);
|
|
|
|
Vector<String> exts = String((const char *)extension_string).split(" ");
|
|
|
|
for (int i = 0; i < exts.size(); i++) {
|
|
extensions.insert(exts[i]);
|
|
}
|
|
}
|
|
|
|
keep_original_textures = true; // false
|
|
shrink_textures_x2 = false;
|
|
depth_internalformat = GL_DEPTH_COMPONENT;
|
|
depth_type = GL_UNSIGNED_INT;
|
|
|
|
#ifdef GLES_OVER_GL
|
|
float_texture_supported = true;
|
|
s3tc_supported = true;
|
|
etc_supported = false;
|
|
support_npot_repeat_mipmap = true;
|
|
depth_buffer_internalformat = GL_DEPTH_COMPONENT24;
|
|
#else
|
|
float_texture_supported = extensions.has("GL_ARB_texture_float") || extensions.has("GL_OES_texture_float");
|
|
s3tc_supported = extensions.has("GL_EXT_texture_compression_s3tc") || extensions.has("WEBGL_compressed_texture_s3tc");
|
|
etc_supported = extensions.has("GL_OES_compressed_ETC1_RGB8_texture") || extensions.has("WEBGL_compressed_texture_etc1");
|
|
support_npot_repeat_mipmap = extensions.has("GL_OES_texture_npot");
|
|
|
|
#ifdef JAVASCRIPT_ENABLED
|
|
// RenderBuffer internal format must be 16 bits in WebGL,
|
|
// but depth_texture should default to 32 always
|
|
// if the implementation doesn't support 32, it should just quietly use 16 instead
|
|
// https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/
|
|
depth_buffer_internalformat = GL_DEPTH_COMPONENT16;
|
|
depth_type = GL_UNSIGNED_INT;
|
|
#else
|
|
// on mobile check for 24 bit depth support for RenderBufferStorage
|
|
if (extensions.has("GL_OES_depth24")) {
|
|
depth_buffer_internalformat = _DEPTH_COMPONENT24_OES;
|
|
depth_type = GL_UNSIGNED_INT;
|
|
} else {
|
|
depth_buffer_internalformat = GL_DEPTH_COMPONENT16;
|
|
depth_type = GL_UNSIGNED_SHORT;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef GLES_OVER_GL
|
|
//TODO: causes huge problems with desktop video drivers. Making false for now, needs to be true to render SCREEN_TEXTURE mipmaps
|
|
render_to_mipmap_supported = false;
|
|
#else
|
|
//check if mipmaps can be used for SCREEN_TEXTURE and Glow on Mobile and web platforms
|
|
render_to_mipmap_supported = extensions.has("GL_OES_fbo_render_mipmap") && extensions.has("GL_EXT_texture_lod");
|
|
#endif
|
|
|
|
#ifdef GLES_OVER_GL
|
|
use_rgba_2d_shadows = false;
|
|
support_depth_texture = true;
|
|
use_rgba_3d_shadows = false;
|
|
support_depth_cubemaps = true;
|
|
#else
|
|
use_rgba_2d_shadows = !(float_texture_supported && extensions.has("GL_EXT_texture_rg"));
|
|
support_depth_texture = extensions.has("GL_OES_depth_texture") || extensions.has("WEBGL_depth_texture");
|
|
use_rgba_3d_shadows = !support_depth_texture;
|
|
support_depth_cubemaps = extensions.has("GL_OES_depth_texture_cube_map");
|
|
#endif
|
|
|
|
#ifdef GLES_OVER_GL
|
|
support_32_bits_indices = true;
|
|
#else
|
|
support_32_bits_indices = extensions.has("GL_OES_element_index_uint");
|
|
#endif
|
|
|
|
#ifdef GLES_OVER_GL
|
|
support_write_depth = true;
|
|
#elif defined(JAVASCRIPT_ENABLED)
|
|
support_write_depth = false;
|
|
#else
|
|
support_write_depth = extensions.has("GL_EXT_frag_depth");
|
|
#endif
|
|
|
|
support_half_float_vertices = true;
|
|
//every platform should support this except web, iOS has issues with their support, so add option to disable
|
|
#ifdef JAVASCRIPT_ENABLED
|
|
support_half_float_vertices = false;
|
|
#endif
|
|
bool disable_half_float = false; //GLOBAL_GET("rendering/opengl/compatibility/disable_half_float");
|
|
if (disable_half_float) {
|
|
support_half_float_vertices = false;
|
|
}
|
|
|
|
etc_supported = extensions.has("GL_OES_compressed_ETC1_RGB8_texture");
|
|
latc_supported = extensions.has("GL_EXT_texture_compression_latc");
|
|
bptc_supported = extensions.has("GL_ARB_texture_compression_bptc");
|
|
rgtc_supported = extensions.has("GL_EXT_texture_compression_rgtc") || extensions.has("GL_ARB_texture_compression_rgtc") || extensions.has("EXT_texture_compression_rgtc");
|
|
bptc_supported = extensions.has("GL_ARB_texture_compression_bptc") || extensions.has("EXT_texture_compression_bptc");
|
|
srgb_decode_supported = extensions.has("GL_EXT_texture_sRGB_decode");
|
|
|
|
glGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &max_vertex_texture_image_units);
|
|
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &max_texture_image_units);
|
|
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &max_texture_size);
|
|
|
|
force_vertex_shading = false; //GLOBAL_GET("rendering/quality/shading/force_vertex_shading");
|
|
use_fast_texture_filter = false; //GLOBAL_GET("rendering/quality/filters/use_nearest_mipmap_filter");
|
|
// should_orphan = GLOBAL_GET("rendering/options/api_usage_legacy/orphan_buffers");
|
|
}
|
|
|
|
Config::~Config() {
|
|
singleton = nullptr;
|
|
}
|
|
|
|
#endif // GLES3_ENABLED
|