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virtualx-engine/drivers/gles2/rasterizer_gles2.cpp
Marcin Zawiejski bd5ff205b2 Revert "Batch GLES2 draw calls" 
This reverts commit f55039b194.

The GLES2 batching seems to require more testing and tweaking in order
to actually make the performance better on Android devices. It's been
proved with #21184 that the current implementation has it's drawbacks
therefore I suggest reverting the commit for now.
2018-08-20 02:10:14 +02:00

430 lines
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/*************************************************************************/
/* rasterizer_gles2.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 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_gles2.h"
#include "gl_context/context_gl.h"
#include "os/os.h"
#include "project_settings.h"
#include <string.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
#if (defined WINDOWS_ENABLED) && !(defined UWP_ENABLED)
#define GLAPIENTRY APIENTRY
#else
#define GLAPIENTRY
#endif
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_PRINTS(output);
}
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);
RasterizerStorage *RasterizerGLES2::get_storage() {
return storage;
}
RasterizerCanvas *RasterizerGLES2::get_canvas() {
return canvas;
}
RasterizerScene *RasterizerGLES2::get_scene() {
return scene;
}
void RasterizerGLES2::initialize() {
if (OS::get_singleton()->is_stdout_verbose()) {
print_line("Using GLES2 video driver");
}
#ifdef GLAD_ENABLED
if (!gladLoadGL()) {
ERR_PRINT("Error initializing GLAD");
}
// GLVersion seems to be used for both GL and GL ES, so we need different version checks for them
#ifdef OPENGL_ENABLED // OpenGL 2.1 Profile required
if (GLVersion.major < 2) {
#else // OpenGL ES 3.0
if (GLVersion.major < 2) {
#endif
ERR_PRINT("Your system's graphic drivers seem not to support OpenGL 2.1 / OpenGL ES 2.0, sorry :(\n"
"Try a drivers update, buy a new GPU or try software rendering on Linux; Godot will now crash with a segmentation fault.");
OS::get_singleton()->alert("Your system's graphic drivers seem not to support OpenGL 2.1 / OpenGL ES 2.0, sorry :(\n"
"Godot Engine will self-destruct as soon as you acknowledge this error message.",
"Fatal error: Insufficient OpenGL / GLES driver support");
}
#ifdef GLES_OVER_GL
//Test GL_ARB_framebuffer_object extension
if (!GLAD_GL_ARB_framebuffer_object) {
//Try older GL_EXT_framebuffer_object extension
if (GLAD_GL_EXT_framebuffer_object) {
glIsRenderbuffer = glIsRenderbufferEXT;
glBindRenderbuffer = glBindRenderbufferEXT;
glDeleteRenderbuffers = glDeleteRenderbuffersEXT;
glGenRenderbuffers = glGenRenderbuffersEXT;
glRenderbufferStorage = glRenderbufferStorageEXT;
glGetRenderbufferParameteriv = glGetRenderbufferParameterivEXT;
glIsFramebuffer = glIsFramebufferEXT;
glBindFramebuffer = glBindFramebufferEXT;
glDeleteFramebuffers = glDeleteFramebuffersEXT;
glGenFramebuffers = glGenFramebuffersEXT;
glCheckFramebufferStatus = glCheckFramebufferStatusEXT;
glFramebufferTexture1D = glFramebufferTexture1DEXT;
glFramebufferTexture2D = glFramebufferTexture2DEXT;
glFramebufferTexture3D = glFramebufferTexture3DEXT;
glFramebufferRenderbuffer = glFramebufferRenderbufferEXT;
glGetFramebufferAttachmentParameteriv = glGetFramebufferAttachmentParameterivEXT;
glGenerateMipmap = glGenerateMipmapEXT;
} else {
ERR_PRINT("Your system's graphic drivers seem not to support GL_ARB(EXT)_framebuffer_object OpenGL extension, sorry :(\n"
"Try a drivers update, buy a new GPU or try software rendering on Linux; Godot will now crash with a segmentation fault.");
OS::get_singleton()->alert("Your system's graphic drivers seem not to support GL_ARB(EXT)_framebuffer_object OpenGL extension, sorry :(\n"
"Godot Engine will self-destruct as soon as you acknowledge this error message.",
"Fatal error: Insufficient OpenGL / GLES driver support");
}
}
#endif
if (true || 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 GLES_OVER_GL
if (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");
*/
}
#endif
const GLubyte *renderer = glGetString(GL_RENDERER);
print_line("OpenGL ES 2.0 Renderer: " + String((const char *)renderer));
storage->initialize();
canvas->initialize();
scene->initialize();
}
void RasterizerGLES2::begin_frame(double frame_step) {
time_total += frame_step;
if (frame_step == 0) {
//to avoid hiccups
frame_step = 0.001;
}
// double time_roll_over = GLOBAL_GET("rendering/limits/time/time_rollover_secs");
// if (time_total > time_roll_over)
// time_total = 0; //roll over every day (should be customz
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 RasterizerGLES2::set_current_render_target(RID p_render_target) {
if (!p_render_target.is_valid() && storage->frame.current_rt && storage->frame.clear_request) {
// pending clear request. Do that first.
glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->fbo);
glClearColor(storage->frame.clear_request_color.r,
storage->frame.clear_request_color.g,
storage->frame.clear_request_color.b,
storage->frame.clear_request_color.a);
glClear(GL_COLOR_BUFFER_BIT);
}
if (p_render_target.is_valid()) {
RasterizerStorageGLES2::RenderTarget *rt = storage->render_target_owner.getornull(p_render_target);
storage->frame.current_rt = rt;
ERR_FAIL_COND(!rt);
storage->frame.clear_request = false;
glViewport(0, 0, rt->width, rt->height);
} else {
storage->frame.current_rt = NULL;
storage->frame.clear_request = false;
glViewport(0, 0, OS::get_singleton()->get_window_size().width, OS::get_singleton()->get_window_size().height);
glBindFramebuffer(GL_FRAMEBUFFER, RasterizerStorageGLES2::system_fbo);
}
}
void RasterizerGLES2::restore_render_target() {
ERR_FAIL_COND(storage->frame.current_rt == NULL);
RasterizerStorageGLES2::RenderTarget *rt = storage->frame.current_rt;
glBindFramebuffer(GL_FRAMEBUFFER, rt->fbo);
glViewport(0, 0, rt->width, rt->height);
}
void RasterizerGLES2::clear_render_target(const Color &p_color) {
ERR_FAIL_COND(!storage->frame.current_rt);
storage->frame.clear_request = true;
storage->frame.clear_request_color = p_color;
}
void RasterizerGLES2::set_boot_image(const Ref<Image> &p_image, const Color &p_color, bool p_scale) {
if (p_image.is_null() || p_image->empty())
return;
int window_w = OS::get_singleton()->get_video_mode(0).width;
int window_h = 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 (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, VS::TEXTURE_FLAG_FILTER);
storage->texture_set_data(texture, p_image);
Rect2 imgrect(0, 0, p_image->get_width(), p_image->get_height());
Rect2 screenrect;
screenrect = imgrect;
screenrect.position += ((Size2(window_w, window_h) - screenrect.size) / 2.0).floor();
RasterizerStorageGLES2::Texture *t = storage->texture_owner.get(texture);
glActiveTexture(GL_TEXTURE0);
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);
}
void RasterizerGLES2::blit_render_target_to_screen(RID p_render_target, const Rect2 &p_screen_rect, int p_screen) {
ERR_FAIL_COND(storage->frame.current_rt);
RasterizerStorageGLES2::RenderTarget *rt = storage->render_target_owner.getornull(p_render_target);
ERR_FAIL_COND(!rt);
canvas->state.canvas_shader.set_conditional(CanvasShaderGLES2::USE_TEXTURE_RECT, true);
canvas->state.canvas_shader.set_conditional(CanvasShaderGLES2::USE_UV_ATTRIBUTE, false);
canvas->state.canvas_shader.set_custom_shader(0);
canvas->state.canvas_shader.bind();
canvas->canvas_begin();
glDisable(GL_BLEND);
glBindFramebuffer(GL_FRAMEBUFFER, RasterizerStorageGLES2::system_fbo);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, rt->color);
// TODO normals
canvas->draw_generic_textured_rect(p_screen_rect, Rect2(0, 0, 1, -1));
glBindTexture(GL_TEXTURE_2D, 0);
canvas->canvas_end();
}
void RasterizerGLES2::end_frame(bool p_swap_buffers) {
if (OS::get_singleton()->is_layered_allowed()) {
if (OS::get_singleton()->get_window_per_pixel_transparency_enabled()) {
#if (defined WINDOWS_ENABLED) && !(defined UWP_ENABLED)
Size2 wndsize = OS::get_singleton()->get_layered_buffer_size();
uint8_t *data = OS::get_singleton()->get_layered_buffer_data();
if (data) {
glReadPixels(0, 0, wndsize.x, wndsize.y, GL_BGRA, GL_UNSIGNED_BYTE, data);
OS::get_singleton()->swap_layered_buffer();
return;
}
#endif
} else {
//clear alpha
glColorMask(false, false, false, true);
glClearColor(0, 0, 0, 1);
glClear(GL_COLOR_BUFFER_BIT);
glColorMask(true, true, true, true);
}
}
if (p_swap_buffers)
OS::get_singleton()->swap_buffers();
else
glFinish();
}
void RasterizerGLES2::finalize() {
}
Rasterizer *RasterizerGLES2::_create_current() {
return memnew(RasterizerGLES2);
}
void RasterizerGLES2::make_current() {
_create_func = _create_current;
}
void RasterizerGLES2::register_config() {
}
RasterizerGLES2::RasterizerGLES2() {
storage = memnew(RasterizerStorageGLES2);
canvas = memnew(RasterizerCanvasGLES2);
scene = memnew(RasterizerSceneGLES2);
canvas->storage = storage;
canvas->scene_render = scene;
storage->canvas = canvas;
scene->storage = storage;
storage->scene = scene;
time_total = 0;
}
RasterizerGLES2::~RasterizerGLES2() {
memdelete(storage);
memdelete(canvas);
}
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