diff options
Diffstat (limited to 'drivers/gles3/rasterizer_gles3.cpp')
| -rw-r--r-- | drivers/gles3/rasterizer_gles3.cpp | 378 |
1 files changed, 378 insertions, 0 deletions
diff --git a/drivers/gles3/rasterizer_gles3.cpp b/drivers/gles3/rasterizer_gles3.cpp new file mode 100644 index 0000000000..10093d42a3 --- /dev/null +++ b/drivers/gles3/rasterizer_gles3.cpp @@ -0,0 +1,378 @@ +/*************************************************************************/ +/* rasterizer_gles3.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_gles3.h" + +#ifdef GLES3_BACKEND_ENABLED +#include "shader_gles3.h" + +#include "core/config/project_settings.h" +#include "core/os/os.h" + +#define _EXT_DEBUG_OUTPUT_SYNCHRONOUS_ARB 0x8242 +#define _EXT_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH_ARB 0x8243 +#define _EXT_DEBUG_CALLBACK_FUNCTION_ARB 0x8244 +#define _EXT_DEBUG_CALLBACK_USER_PARAM_ARB 0x8245 +#define _EXT_DEBUG_SOURCE_API_ARB 0x8246 +#define _EXT_DEBUG_SOURCE_WINDOW_SYSTEM_ARB 0x8247 +#define _EXT_DEBUG_SOURCE_SHADER_COMPILER_ARB 0x8248 +#define _EXT_DEBUG_SOURCE_THIRD_PARTY_ARB 0x8249 +#define _EXT_DEBUG_SOURCE_APPLICATION_ARB 0x824A +#define _EXT_DEBUG_SOURCE_OTHER_ARB 0x824B +#define _EXT_DEBUG_TYPE_ERROR_ARB 0x824C +#define _EXT_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB 0x824D +#define _EXT_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB 0x824E +#define _EXT_DEBUG_TYPE_PORTABILITY_ARB 0x824F +#define _EXT_DEBUG_TYPE_PERFORMANCE_ARB 0x8250 +#define _EXT_DEBUG_TYPE_OTHER_ARB 0x8251 +#define _EXT_MAX_DEBUG_MESSAGE_LENGTH_ARB 0x9143 +#define _EXT_MAX_DEBUG_LOGGED_MESSAGES_ARB 0x9144 +#define _EXT_DEBUG_LOGGED_MESSAGES_ARB 0x9145 +#define _EXT_DEBUG_SEVERITY_HIGH_ARB 0x9146 +#define _EXT_DEBUG_SEVERITY_MEDIUM_ARB 0x9147 +#define _EXT_DEBUG_SEVERITY_LOW_ARB 0x9148 +#define _EXT_DEBUG_OUTPUT 0x92E0 + +#ifndef GLAPIENTRY +#if defined(WINDOWS_ENABLED) && !defined(UWP_ENABLED) +#define GLAPIENTRY APIENTRY +#else +#define GLAPIENTRY +#endif +#endif + +#ifndef IPHONE_ENABLED +// We include EGL below to get debug callback on GLES2 platforms, +// but EGL is not available on iOS. +#define CAN_DEBUG +#endif + +#if !defined(GLES_OVER_GL) && defined(CAN_DEBUG) +#include <GLES3/gl3.h> +#include <GLES3/gl3ext.h> +#include <GLES3/gl3platform.h> + +#include <EGL/egl.h> +#include <EGL/eglext.h> +#endif + +#if defined(MINGW_ENABLED) || defined(_MSC_VER) +#define strcpy strcpy_s +#endif + +void RasterizerGLES3::begin_frame(double frame_step) { + frame++; + delta = frame_step; + + // from 3.2 + time_total += frame_step * time_scale; + + if (frame_step == 0) { + //to avoid hiccups + frame_step = 0.001; + } + + double time_roll_over = GLOBAL_GET("rendering/limits/time/time_rollover_secs"); + time_total = Math::fmod(time_total, time_roll_over); + + storage.frame.time[0] = time_total; + storage.frame.time[1] = Math::fmod(time_total, 3600); + storage.frame.time[2] = Math::fmod(time_total, 900); + storage.frame.time[3] = Math::fmod(time_total, 60); + storage.frame.count++; + storage.frame.delta = frame_step; + + storage.update_dirty_resources(); + + storage.info.render_final = storage.info.render; + storage.info.render.reset(); + + //scene->iteration(); +} + +void RasterizerGLES3::end_frame(bool p_swap_buffers) { + // if (OS::get_singleton()->is_layered_allowed()) { + // if (!OS::get_singleton()->get_window_per_pixel_transparency_enabled()) { + //clear alpha + // glColorMask(false, false, false, true); + // glClearColor(0.5, 0, 0, 1); + // glClear(GL_COLOR_BUFFER_BIT); + // glColorMask(true, true, true, true); + // } + // } + + // glClearColor(1, 0, 0, 1); + // glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_ACCUM_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); + + if (p_swap_buffers) + DisplayServer::get_singleton()->swap_buffers(); + else + glFinish(); +} + +#ifdef CAN_DEBUG +static void GLAPIENTRY _gl_debug_print(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const GLvoid *userParam) { + if (type == _EXT_DEBUG_TYPE_OTHER_ARB) + return; + + if (type == _EXT_DEBUG_TYPE_PERFORMANCE_ARB) + return; //these are ultimately annoying, so removing for now + + char debSource[256], debType[256], debSev[256]; + + if (source == _EXT_DEBUG_SOURCE_API_ARB) + strcpy(debSource, "OpenGL"); + else if (source == _EXT_DEBUG_SOURCE_WINDOW_SYSTEM_ARB) + strcpy(debSource, "Windows"); + else if (source == _EXT_DEBUG_SOURCE_SHADER_COMPILER_ARB) + strcpy(debSource, "Shader Compiler"); + else if (source == _EXT_DEBUG_SOURCE_THIRD_PARTY_ARB) + strcpy(debSource, "Third Party"); + else if (source == _EXT_DEBUG_SOURCE_APPLICATION_ARB) + strcpy(debSource, "Application"); + else if (source == _EXT_DEBUG_SOURCE_OTHER_ARB) + strcpy(debSource, "Other"); + + if (type == _EXT_DEBUG_TYPE_ERROR_ARB) + strcpy(debType, "Error"); + else if (type == _EXT_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB) + strcpy(debType, "Deprecated behavior"); + else if (type == _EXT_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB) + strcpy(debType, "Undefined behavior"); + else if (type == _EXT_DEBUG_TYPE_PORTABILITY_ARB) + strcpy(debType, "Portability"); + else if (type == _EXT_DEBUG_TYPE_PERFORMANCE_ARB) + strcpy(debType, "Performance"); + else if (type == _EXT_DEBUG_TYPE_OTHER_ARB) + strcpy(debType, "Other"); + + if (severity == _EXT_DEBUG_SEVERITY_HIGH_ARB) + strcpy(debSev, "High"); + else if (severity == _EXT_DEBUG_SEVERITY_MEDIUM_ARB) + strcpy(debSev, "Medium"); + else if (severity == _EXT_DEBUG_SEVERITY_LOW_ARB) + strcpy(debSev, "Low"); + + String output = String() + "GL ERROR: Source: " + debSource + "\tType: " + debType + "\tID: " + itos(id) + "\tSeverity: " + debSev + "\tMessage: " + message; + + ERR_PRINT(output); +} +#endif + +typedef void (*DEBUGPROCARB)(GLenum source, + GLenum type, + GLuint id, + GLenum severity, + GLsizei length, + const char *message, + const void *userParam); + +typedef void (*DebugMessageCallbackARB)(DEBUGPROCARB callback, const void *userParam); + +void RasterizerGLES3::initialize() { + print_verbose("Using OpenGL video driver"); + + storage._main_thread_id = Thread::get_caller_id(); + +#ifdef GLAD_ENABLED + if (!gladLoadGL()) { + ERR_PRINT("Error initializing GLAD"); + return; + } +#endif + +#ifdef GLAD_ENABLED + if (OS::get_singleton()->is_stdout_verbose()) { + if (GLAD_GL_ARB_debug_output) { + glEnable(_EXT_DEBUG_OUTPUT_SYNCHRONOUS_ARB); + glDebugMessageCallbackARB(_gl_debug_print, NULL); + glEnable(_EXT_DEBUG_OUTPUT); + } else { + print_line("OpenGL debugging not supported!"); + } + } +#endif // GLAD_ENABLED + + // For debugging +#ifdef CAN_DEBUG +#ifdef GLES_OVER_GL + if (OS::get_singleton()->is_stdout_verbose() && GLAD_GL_ARB_debug_output) { + glDebugMessageControlARB(_EXT_DEBUG_SOURCE_API_ARB, _EXT_DEBUG_TYPE_ERROR_ARB, _EXT_DEBUG_SEVERITY_HIGH_ARB, 0, NULL, GL_TRUE); + glDebugMessageControlARB(_EXT_DEBUG_SOURCE_API_ARB, _EXT_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB, _EXT_DEBUG_SEVERITY_HIGH_ARB, 0, NULL, GL_TRUE); + glDebugMessageControlARB(_EXT_DEBUG_SOURCE_API_ARB, _EXT_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB, _EXT_DEBUG_SEVERITY_HIGH_ARB, 0, NULL, GL_TRUE); + glDebugMessageControlARB(_EXT_DEBUG_SOURCE_API_ARB, _EXT_DEBUG_TYPE_PORTABILITY_ARB, _EXT_DEBUG_SEVERITY_HIGH_ARB, 0, NULL, GL_TRUE); + glDebugMessageControlARB(_EXT_DEBUG_SOURCE_API_ARB, _EXT_DEBUG_TYPE_PERFORMANCE_ARB, _EXT_DEBUG_SEVERITY_HIGH_ARB, 0, NULL, GL_TRUE); + glDebugMessageControlARB(_EXT_DEBUG_SOURCE_API_ARB, _EXT_DEBUG_TYPE_OTHER_ARB, _EXT_DEBUG_SEVERITY_HIGH_ARB, 0, NULL, GL_TRUE); + // glDebugMessageInsertARB( + // GL_DEBUG_SOURCE_API_ARB, + // GL_DEBUG_TYPE_OTHER_ARB, 1, + // GL_DEBUG_SEVERITY_HIGH_ARB, 5, "hello"); + } +#else + if (OS::get_singleton()->is_stdout_verbose()) { + DebugMessageCallbackARB callback = (DebugMessageCallbackARB)eglGetProcAddress("glDebugMessageCallback"); + if (!callback) { + callback = (DebugMessageCallbackARB)eglGetProcAddress("glDebugMessageCallbackKHR"); + } + + if (callback) { + print_line("godot: ENABLING GL DEBUG"); + glEnable(_EXT_DEBUG_OUTPUT_SYNCHRONOUS_ARB); + callback(_gl_debug_print, NULL); + glEnable(_EXT_DEBUG_OUTPUT); + } + } +#endif // GLES_OVER_GL +#endif // CAN_DEBUG + + print_line("OpenGL Renderer: " + RS::get_singleton()->get_video_adapter_name()); + storage.initialize(); + canvas.initialize(); + // scene.initialize(); + + // make sure the OS knows to only access the renderer from the main thread + OS::get_singleton()->set_render_main_thread_mode(OS::RENDER_MAIN_THREAD_ONLY); +} + +RasterizerGLES3::RasterizerGLES3() { + canvas.storage = &storage; + canvas.scene_render = &scene; + storage.canvas = &canvas; + //scene.storage = &storage; + storage.scene = &scene; +} + +void RasterizerGLES3::prepare_for_blitting_render_targets() { +} + +void RasterizerGLES3::_blit_render_target_to_screen(RID p_render_target, const Rect2 &p_screen_rect) { + ERR_FAIL_COND(storage.frame.current_rt); + + // print_line("_blit_render_target_to_screen " + itos (p_screen) + ", rect " + String(Variant(p_screen_rect))); + + RasterizerStorageGLES3::RenderTarget *rt = storage.render_target_owner.get_or_null(p_render_target); + ERR_FAIL_COND(!rt); + + canvas._set_texture_rect_mode(true); + canvas.state.canvas_shader.set_custom_shader(0); + canvas.state.canvas_shader.bind(); + + canvas.canvas_begin(); + + glDisable(GL_BLEND); + storage.bind_framebuffer_system(); + glActiveTexture(GL_TEXTURE0 + storage.config.max_texture_image_units - 1); + if (rt->external.fbo != 0) { + glBindTexture(GL_TEXTURE_2D, rt->external.color); + } else { + glBindTexture(GL_TEXTURE_2D, rt->color); + } + canvas.draw_generic_textured_rect(p_screen_rect, Rect2(0, 0, 1, -1)); + glBindTexture(GL_TEXTURE_2D, 0); + + canvas.canvas_end(); +} + +// is this p_screen useless in a multi window environment? +void RasterizerGLES3::blit_render_targets_to_screen(DisplayServer::WindowID p_screen, const BlitToScreen *p_render_targets, int p_amount) { + // do this once off for all blits + storage.bind_framebuffer_system(); + + storage.frame.current_rt = nullptr; + + for (int i = 0; i < p_amount; i++) { + const BlitToScreen &blit = p_render_targets[i]; + + RID rid_rt = blit.render_target; + + Rect2 dst_rect = blit.dst_rect; + _blit_render_target_to_screen(rid_rt, dst_rect); + } +} + +void RasterizerGLES3::set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale, bool p_use_filter) { + if (p_image.is_null() || p_image->is_empty()) + return; + + int window_w = 640; //OS::get_singleton()->get_video_mode(0).width; + int window_h = 480; //OS::get_singleton()->get_video_mode(0).height; + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + glViewport(0, 0, window_w, window_h); + glDisable(GL_BLEND); + glDepthMask(GL_FALSE); + if (false) { + // if (OS::get_singleton()->get_window_per_pixel_transparency_enabled()) { + glClearColor(0.0, 0.0, 0.0, 0.0); + } else { + glClearColor(p_color.r, p_color.g, p_color.b, 1.0); + } + glClear(GL_COLOR_BUFFER_BIT); + + canvas.canvas_begin(); + + RID texture = storage.texture_create(); + //storage.texture_allocate(texture, p_image->get_width(), p_image->get_height(), 0, p_image->get_format(), VS::TEXTURE_TYPE_2D, p_use_filter ? VS::TEXTURE_FLAG_FILTER : 0); + storage._texture_allocate_internal(texture, p_image->get_width(), p_image->get_height(), 0, p_image->get_format(), RenderingDevice::TEXTURE_TYPE_2D); + storage.texture_set_data(texture, p_image); + + Rect2 imgrect(0, 0, p_image->get_width(), p_image->get_height()); + Rect2 screenrect; + if (p_scale) { + if (window_w > window_h) { + //scale horizontally + screenrect.size.y = window_h; + screenrect.size.x = imgrect.size.x * window_h / imgrect.size.y; + screenrect.position.x = (window_w - screenrect.size.x) / 2; + + } else { + //scale vertically + screenrect.size.x = window_w; + screenrect.size.y = imgrect.size.y * window_w / imgrect.size.x; + screenrect.position.y = (window_h - screenrect.size.y) / 2; + } + } else { + screenrect = imgrect; + screenrect.position += ((Size2(window_w, window_h) - screenrect.size) / 2.0).floor(); + } + + RasterizerStorageGLES3::Texture *t = storage.texture_owner.get_or_null(texture); + glActiveTexture(GL_TEXTURE0 + storage.config.max_texture_image_units - 1); + glBindTexture(GL_TEXTURE_2D, t->tex_id); + canvas.draw_generic_textured_rect(screenrect, Rect2(0, 0, 1, 1)); + glBindTexture(GL_TEXTURE_2D, 0); + canvas.canvas_end(); + + storage.free(texture); + + end_frame(true); +} + +#endif // GLES3_BACKEND_ENABLED |