diff options
Diffstat (limited to 'drivers/gles3/storage/config.cpp')
| -rw-r--r-- | drivers/gles3/storage/config.cpp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/drivers/gles3/storage/config.cpp b/drivers/gles3/storage/config.cpp new file mode 100644 index 0000000000..1f66401427 --- /dev/null +++ b/drivers/gles3/storage/config.cpp @@ -0,0 +1,156 @@ +/*************************************************************************/ +/* 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; + should_orphan = true; +} + +Config::~Config() { + singleton = nullptr; +} + +void Config::initialize() { + { + 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"); +} + +#endif // GLES3_ENABLED |