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video_core: implement GLES depth/stencil downloads

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video_core: disable depth/stencil texture download on OpenGL ES

Disable deptch stencil shader in texture_downloader_es for now

enable_depth_stencil

DepthStencil

remove GL_DEBUG_OUTPUT_SYNCHRONOUS
This commit is contained in:
BreadFish64
2020-03-24 10:44:44 -05:00
committed by SachinVin
parent 91f52c2fdb
commit 54b8af1444
9 changed files with 359 additions and 103 deletions
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254
src/video_core/renderer_opengl/texture_downloader_es.cpp Normal file
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// Copyright 2020 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <chrono>
#include <vector>
#include <fmt/chrono.h>
#include "common/logging/log.h"
#include "video_core/renderer_opengl/gl_rasterizer_cache.h"
#include "video_core/renderer_opengl/gl_state.h"
#include "video_core/renderer_opengl/gl_vars.h"
#include "video_core/renderer_opengl/texture_downloader_es.h"
#include "shaders/depth_to_color.frag"
#include "shaders/depth_to_color.vert"
#include "shaders/ds_to_color.frag"
namespace OpenGL {
/**
* Self tests for the texture downloader
*/
void TextureDownloaderES::Test() {
auto cur_state = OpenGLState::GetCurState();
OpenGLState state;
{
GLint range[2];
GLint precision;
#define PRECISION_TEST(type) \
glGetShaderPrecisionFormat(GL_FRAGMENT_SHADER, type, range, &precision); \
LOG_INFO(Render_OpenGL, #type " range: [{}, {}], precision: {}", range[0], range[1], precision);
PRECISION_TEST(GL_LOW_INT);
PRECISION_TEST(GL_MEDIUM_INT);
PRECISION_TEST(GL_HIGH_INT);
PRECISION_TEST(GL_LOW_FLOAT);
PRECISION_TEST(GL_MEDIUM_FLOAT);
PRECISION_TEST(GL_HIGH_FLOAT);
#undef PRECISION_TEST
}
glActiveTexture(GL_TEXTURE0);
const auto test = [this, &state](FormatTuple tuple, auto original_data, std::size_t tex_size,
auto data_generator) {
OGLTexture texture;
texture.Create();
state.texture_units[0].texture_2d = texture.handle;
state.Apply();
original_data.resize(tex_size * tex_size);
for (std::size_t idx = 0; idx < original_data.size(); ++idx)
original_data[idx] = data_generator(idx);
glTexStorage2D(GL_TEXTURE_2D, 1, tuple.internal_format, tex_size, tex_size);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, tex_size, tex_size, tuple.format, tuple.type,
original_data.data());
decltype(original_data) new_data(original_data.size());
glFinish();
auto start = std::chrono::high_resolution_clock::now();
GetTexImage(GL_TEXTURE_2D, 0, tuple.format, tuple.type, tex_size, tex_size,
new_data.data());
glFinish();
auto time = std::chrono::high_resolution_clock::now() - start;
LOG_INFO(Render_OpenGL, "test took {}", std::chrono::duration<double, std::milli>(time));
int diff = 0;
for (std::size_t idx = 0; idx < original_data.size(); ++idx)
if (new_data[idx] - original_data[idx] != diff) {
diff = new_data[idx] - original_data[idx];
// every time the error between the real and expected value changes, log it
// some error is expected in D24 due to floating point precision
LOG_WARNING(Render_OpenGL, "difference changed at {:#X}: {:#X} -> {:#X}", idx,
original_data[idx], new_data[idx]);
}
};
LOG_INFO(Render_OpenGL, "GL_DEPTH24_STENCIL8 download test starting");
test(depth_format_tuples[3], std::vector<u32>{}, 4096,
[](std::size_t idx) { return static_cast<u32>((idx << 8) | (idx & 0xFF)); });
LOG_INFO(Render_OpenGL, "GL_DEPTH_COMPONENT24 download test starting");
test(depth_format_tuples[2], std::vector<u32>{}, 4096,
[](std::size_t idx) { return static_cast<u32>(idx << 8); });
LOG_INFO(Render_OpenGL, "GL_DEPTH_COMPONENT16 download test starting");
test(depth_format_tuples[0], std::vector<u16>{}, 256,
[](std::size_t idx) { return static_cast<u16>(idx); });
cur_state.Apply();
}
TextureDownloaderES::TextureDownloaderES(bool enable_depth_stencil) {
vao.Create();
read_fbo_generic.Create();
depth32_fbo.Create();
r32ui_renderbuffer.Create();
depth16_fbo.Create();
r16_renderbuffer.Create();
const auto init_program = [](ConversionShader& converter, std::string_view frag) {
converter.program.Create(depth_to_color_vert.data(), frag.data());
converter.lod_location = glGetUniformLocation(converter.program.handle, "lod");
};
// xperia64: The depth stencil shader currently uses a GLES extension that is not supported
// across all devices Reportedly broken on Tegra devices and the Nexus 6P, so enabling it can be
// toggled
if (enable_depth_stencil) {
init_program(d24s8_r32ui_conversion_shader, ds_to_color_frag);
}
init_program(d24_r32ui_conversion_shader, depth_to_color_frag);
init_program(d16_r16_conversion_shader, R"(
out highp float color;
uniform highp sampler2D depth;
uniform int lod;
void main(){
color = texelFetch(depth, ivec2(gl_FragCoord.xy), lod).x;
}
)");
sampler.Create();
glSamplerParameteri(sampler.handle, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glSamplerParameteri(sampler.handle, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
auto cur_state = OpenGLState::GetCurState();
auto state = cur_state;
state.draw.shader_program = d24s8_r32ui_conversion_shader.program.handle;
state.draw.draw_framebuffer = depth32_fbo.handle;
state.renderbuffer = r32ui_renderbuffer.handle;
state.Apply();
glRenderbufferStorage(GL_RENDERBUFFER, GL_R32UI, max_size, max_size);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER,
r32ui_renderbuffer.handle);
glUniform1i(glGetUniformLocation(d24s8_r32ui_conversion_shader.program.handle, "depth"), 1);
state.draw.draw_framebuffer = depth16_fbo.handle;
state.renderbuffer = r16_renderbuffer.handle;
state.Apply();
glRenderbufferStorage(GL_RENDERBUFFER, GL_R16, max_size, max_size);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER,
r16_renderbuffer.handle);
cur_state.Apply();
}
/**
* OpenGL ES does not support glReadBuffer for depth/stencil formats
* This gets around it by converting to a Red surface before downloading
*/
GLuint TextureDownloaderES::ConvertDepthToColor(GLuint level, GLenum& format, GLenum& type,
GLint height, GLint width) {
ASSERT(width <= max_size && height <= max_size);
const OpenGLState cur_state = OpenGLState::GetCurState();
OpenGLState state;
state.texture_units[0] = {cur_state.texture_units[0].texture_2d, sampler.handle};
state.draw.vertex_array = vao.handle;
OGLTexture texture_view;
const ConversionShader* converter;
switch (type) {
case GL_UNSIGNED_SHORT:
state.draw.draw_framebuffer = depth16_fbo.handle;
converter = &d16_r16_conversion_shader;
format = GL_RED;
break;
case GL_UNSIGNED_INT:
state.draw.draw_framebuffer = depth32_fbo.handle;
converter = &d24_r32ui_conversion_shader;
format = GL_RED_INTEGER;
break;
case GL_UNSIGNED_INT_24_8:
state.draw.draw_framebuffer = depth32_fbo.handle;
converter = &d24s8_r32ui_conversion_shader;
format = GL_RED_INTEGER;
type = GL_UNSIGNED_INT;
break;
default:
UNREACHABLE_MSG("Destination type not recognized");
}
state.draw.shader_program = converter->program.handle;
state.viewport = {0, 0, width, height};
state.Apply();
if (converter->program.handle == d24s8_r32ui_conversion_shader.program.handle) {
// TODO BreadFish64: the ARM framebuffer reading extension is probably not the most optimal
// way to do this, search for another solution
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D,
state.texture_units[0].texture_2d, level);
}
glUniform1i(converter->lod_location, level);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
if (texture_view.handle) {
glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_STENCIL_TEXTURE_MODE, GL_DEPTH_COMPONENT);
}
return state.draw.draw_framebuffer;
}
/**
* OpenGL ES does not support glGetTexImage. Obtain the pixels by attaching the
* texture to a framebuffer.
* Originally from https://github.com/apitrace/apitrace/blob/master/retrace/glstate_images.cpp
* Depth texture download assumes that the texture's format tuple matches what is found
* OpenGL::depth_format_tuples
*/
void TextureDownloaderES::GetTexImage(GLenum target, GLuint level, GLenum format, GLenum type,
GLint height, GLint width, void* pixels) {
OpenGLState state = OpenGLState::GetCurState();
GLuint texture;
const GLuint old_read_buffer = state.draw.read_framebuffer;
switch (target) {
case GL_TEXTURE_2D:
texture = state.texture_units[0].texture_2d;
break;
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
texture = state.texture_cube_unit.texture_cube;
break;
default:
UNIMPLEMENTED_MSG("Unexpected target {:x}", target);
}
switch (format) {
case GL_DEPTH_COMPONENT:
case GL_DEPTH_STENCIL:
// unfortunately, the accurate way is too slow for release
return;
state.draw.read_framebuffer = ConvertDepthToColor(level, format, type, height, width);
state.Apply();
break;
default:
state.draw.read_framebuffer = read_fbo_generic.handle;
state.Apply();
glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture,
level);
}
GLenum status = glCheckFramebufferStatus(GL_READ_FRAMEBUFFER);
if (status != GL_FRAMEBUFFER_COMPLETE) {
LOG_DEBUG(Render_OpenGL, "Framebuffer is incomplete, status: {:X}", status);
}
glReadPixels(0, 0, width, height, format, type, pixels);
state.draw.read_framebuffer = old_read_buffer;
state.Apply();
}
} // namespace OpenGL