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Render.cpp
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Render.cpp
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// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "VideoBackends/OGL/Render.h"
#include <algorithm>
#include <cinttypes>
#include <cmath>
#include <cstdio>
#include <memory>
#include <string>
#include <tuple>
#include <vector>
#include "Common/Assert.h"
#include "Common/Atomic.h"
#include "Common/CommonTypes.h"
#include "Common/GL/GLContext.h"
#include "Common/GL/GLUtil.h"
#include "Common/Logging/LogManager.h"
#include "Common/MathUtil.h"
#include "Common/MsgHandler.h"
#include "Common/StringUtil.h"
#include "Core/Config/GraphicsSettings.h"
#include "Core/Core.h"
#include "VideoBackends/OGL/BoundingBox.h"
#include "VideoBackends/OGL/OGLPipeline.h"
#include "VideoBackends/OGL/OGLShader.h"
#include "VideoBackends/OGL/OGLTexture.h"
#include "VideoBackends/OGL/ProgramShaderCache.h"
#include "VideoBackends/OGL/SamplerCache.h"
#include "VideoBackends/OGL/StreamBuffer.h"
#include "VideoBackends/OGL/VertexManager.h"
#include "VideoCommon/BPFunctions.h"
#include "VideoCommon/DriverDetails.h"
#include "VideoCommon/FramebufferManager.h"
#include "VideoCommon/IndexGenerator.h"
#include "VideoCommon/OnScreenDisplay.h"
#include "VideoCommon/PixelEngine.h"
#include "VideoCommon/PostProcessing.h"
#include "VideoCommon/RenderState.h"
#include "VideoCommon/ShaderGenCommon.h"
#include "VideoCommon/VertexShaderManager.h"
#include "VideoCommon/VideoBackendBase.h"
#include "VideoCommon/VideoConfig.h"
#include "VideoCommon/XFMemory.h"
namespace OGL
{
VideoConfig g_ogl_config;
static void APIENTRY ErrorCallback(GLenum source, GLenum type, GLuint id, GLenum severity,
GLsizei length, const char* message, const void* userParam)
{
const char* s_source;
const char* s_type;
// Performance - DualCore driver performance warning:
// DualCore application thread syncing with server thread
if (id == 0x200b0)
return;
switch (source)
{
case GL_DEBUG_SOURCE_API_ARB:
s_source = "API";
break;
case GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB:
s_source = "Window System";
break;
case GL_DEBUG_SOURCE_SHADER_COMPILER_ARB:
s_source = "Shader Compiler";
break;
case GL_DEBUG_SOURCE_THIRD_PARTY_ARB:
s_source = "Third Party";
break;
case GL_DEBUG_SOURCE_APPLICATION_ARB:
s_source = "Application";
break;
case GL_DEBUG_SOURCE_OTHER_ARB:
s_source = "Other";
break;
default:
s_source = "Unknown";
break;
}
switch (type)
{
case GL_DEBUG_TYPE_ERROR_ARB:
s_type = "Error";
break;
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB:
s_type = "Deprecated";
break;
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB:
s_type = "Undefined";
break;
case GL_DEBUG_TYPE_PORTABILITY_ARB:
s_type = "Portability";
break;
case GL_DEBUG_TYPE_PERFORMANCE_ARB:
s_type = "Performance";
break;
case GL_DEBUG_TYPE_OTHER_ARB:
s_type = "Other";
break;
default:
s_type = "Unknown";
break;
}
switch (severity)
{
case GL_DEBUG_SEVERITY_HIGH_ARB:
ERROR_LOG(HOST_GPU, "id: %x, source: %s, type: %s - %s", id, s_source, s_type, message);
break;
case GL_DEBUG_SEVERITY_MEDIUM_ARB:
WARN_LOG(HOST_GPU, "id: %x, source: %s, type: %s - %s", id, s_source, s_type, message);
break;
case GL_DEBUG_SEVERITY_LOW_ARB:
DEBUG_LOG(HOST_GPU, "id: %x, source: %s, type: %s - %s", id, s_source, s_type, message);
break;
case GL_DEBUG_SEVERITY_NOTIFICATION:
DEBUG_LOG(HOST_GPU, "id: %x, source: %s, type: %s - %s", id, s_source, s_type, message);
break;
default:
ERROR_LOG(HOST_GPU, "id: %x, source: %s, type: %s - %s", id, s_source, s_type, message);
break;
}
}
// Two small Fallbacks to avoid GL_ARB_ES2_compatibility
static void APIENTRY DepthRangef(GLfloat neardepth, GLfloat fardepth)
{
glDepthRange(neardepth, fardepth);
}
static void APIENTRY ClearDepthf(GLfloat depthval)
{
glClearDepth(depthval);
}
static void InitDriverInfo()
{
std::string svendor = std::string(g_ogl_config.gl_vendor);
std::string srenderer = std::string(g_ogl_config.gl_renderer);
std::string sversion = std::string(g_ogl_config.gl_version);
DriverDetails::Vendor vendor = DriverDetails::VENDOR_UNKNOWN;
DriverDetails::Driver driver = DriverDetails::DRIVER_UNKNOWN;
DriverDetails::Family family = DriverDetails::Family::UNKNOWN;
double version = 0.0;
// Get the vendor first
if (svendor == "NVIDIA Corporation" && srenderer != "NVIDIA Tegra")
{
vendor = DriverDetails::VENDOR_NVIDIA;
}
else if (svendor == "ATI Technologies Inc." || svendor == "Advanced Micro Devices, Inc.")
{
vendor = DriverDetails::VENDOR_ATI;
}
else if (std::string::npos != sversion.find("Mesa"))
{
vendor = DriverDetails::VENDOR_MESA;
}
else if (std::string::npos != svendor.find("Intel"))
{
vendor = DriverDetails::VENDOR_INTEL;
}
else if (svendor == "ARM")
{
vendor = DriverDetails::VENDOR_ARM;
}
else if (svendor == "http://limadriver.org/")
{
vendor = DriverDetails::VENDOR_ARM;
driver = DriverDetails::DRIVER_LIMA;
}
else if (svendor == "Qualcomm")
{
vendor = DriverDetails::VENDOR_QUALCOMM;
}
else if (svendor == "Imagination Technologies")
{
vendor = DriverDetails::VENDOR_IMGTEC;
}
else if (svendor == "NVIDIA Corporation" && srenderer == "NVIDIA Tegra")
{
vendor = DriverDetails::VENDOR_TEGRA;
}
else if (svendor == "Vivante Corporation")
{
vendor = DriverDetails::VENDOR_VIVANTE;
}
// Get device family and driver version...if we care about it
switch (vendor)
{
case DriverDetails::VENDOR_QUALCOMM:
{
driver = DriverDetails::DRIVER_QUALCOMM;
double glVersion;
sscanf(g_ogl_config.gl_version, "OpenGL ES %lg V@%lg", &glVersion, &version);
}
break;
case DriverDetails::VENDOR_ARM:
// Currently the Mali-T line has two families in it.
// Mali-T6xx and Mali-T7xx
// These two families are similar enough that they share bugs in their drivers.
//
// Mali drivers provide no way to explicitly find out what video driver is running.
// This is similar to how we can't find the Nvidia driver version in Windows.
// Good thing is that ARM introduces a new video driver about once every two years so we can
// find the driver version by the features it exposes.
// r2p0 - No OpenGL ES 3.0 support (We don't support this)
// r3p0 - OpenGL ES 3.0 support
// r4p0 - Supports 'GL_EXT_shader_pixel_local_storage' extension.
driver = DriverDetails::DRIVER_ARM;
if (GLExtensions::Supports("GL_EXT_shader_pixel_local_storage"))
version = 400;
else
version = 300;
break;
case DriverDetails::VENDOR_MESA:
{
if (svendor == "nouveau")
{
driver = DriverDetails::DRIVER_NOUVEAU;
}
else if (svendor == "Intel Open Source Technology Center")
{
driver = DriverDetails::DRIVER_I965;
if (srenderer.find("Sandybridge") != std::string::npos)
family = DriverDetails::Family::INTEL_SANDY;
else if (srenderer.find("Ivybridge") != std::string::npos)
family = DriverDetails::Family::INTEL_IVY;
}
else if (std::string::npos != srenderer.find("AMD") ||
std::string::npos != srenderer.find("ATI"))
{
driver = DriverDetails::DRIVER_R600;
}
int major = 0;
int minor = 0;
int release = 0;
sscanf(g_ogl_config.gl_version, "%*s (Core Profile) Mesa %d.%d.%d", &major, &minor, &release);
version = 100 * major + 10 * minor + release;
}
break;
case DriverDetails::VENDOR_INTEL: // Happens in OS X/Windows
{
u32 market_name;
sscanf(g_ogl_config.gl_renderer, "Intel HD Graphics %d", &market_name);
switch (market_name)
{
case 2000:
case 3000:
family = DriverDetails::Family::INTEL_SANDY;
break;
case 2500:
case 4000:
family = DriverDetails::Family::INTEL_IVY;
break;
default:
family = DriverDetails::Family::UNKNOWN;
break;
};
#ifdef _WIN32
int glmajor = 0;
int glminor = 0;
int major = 0;
int minor = 0;
int release = 0;
int revision = 0;
// Example version string: '4.3.0 - Build 10.18.10.3907'
sscanf(g_ogl_config.gl_version, "%d.%d.0 - Build %d.%d.%d.%d", &glmajor, &glminor, &major,
&minor, &release, &revision);
version = 100000000 * major + 1000000 * minor + 10000 * release + revision;
version /= 10000;
#endif
}
break;
case DriverDetails::VENDOR_NVIDIA:
{
int glmajor = 0;
int glminor = 0;
int glrelease = 0;
int major = 0;
int minor = 0;
// TODO: this is known to be broken on Windows
// Nvidia seems to have removed their driver version from this string, so we can't get it.
// hopefully we'll never have to workaround Nvidia bugs
sscanf(g_ogl_config.gl_version, "%d.%d.%d NVIDIA %d.%d", &glmajor, &glminor, &glrelease, &major,
&minor);
version = 100 * major + minor;
}
break;
case DriverDetails::VENDOR_IMGTEC:
{
// Example version string:
// "OpenGL ES 3.2 build 1.9@4850625"
// Ends up as "109.4850625" - "1.9" being the branch, "4850625" being the build's change ID
// The change ID only makes sense to compare within a branch
driver = DriverDetails::DRIVER_IMGTEC;
double gl_version;
int major, minor, change;
constexpr double change_scale = 10000000;
sscanf(g_ogl_config.gl_version, "OpenGL ES %lg build %d.%d@%d", &gl_version, &major, &minor,
&change);
version = 100 * major + minor;
if (change >= change_scale)
{
ERROR_LOG(VIDEO, "Version changeID overflow - change:%d scale:%f", change, change_scale);
}
else
{
version += static_cast<double>(change) / change_scale;
}
}
break;
// We don't care about these
default:
break;
}
DriverDetails::Init(DriverDetails::API_OPENGL, vendor, driver, version, family);
}
// Init functions
Renderer::Renderer(std::unique_ptr<GLContext> main_gl_context, float backbuffer_scale)
: ::Renderer(static_cast<int>(std::max(main_gl_context->GetBackBufferWidth(), 1u)),
static_cast<int>(std::max(main_gl_context->GetBackBufferHeight(), 1u)),
backbuffer_scale, AbstractTextureFormat::RGBA8),
m_main_gl_context(std::move(main_gl_context)),
m_current_rasterization_state(RenderState::GetInvalidRasterizationState()),
m_current_depth_state(RenderState::GetInvalidDepthState()),
m_current_blend_state(RenderState::GetInvalidBlendingState())
{
// Create the window framebuffer.
if (!m_main_gl_context->IsHeadless())
{
m_system_framebuffer = std::make_unique<OGLFramebuffer>(
nullptr, nullptr, AbstractTextureFormat::RGBA8, AbstractTextureFormat::Undefined,
std::max(m_main_gl_context->GetBackBufferWidth(), 1u),
std::max(m_main_gl_context->GetBackBufferHeight(), 1u), 1, 1, 0);
m_current_framebuffer = m_system_framebuffer.get();
}
bool bSuccess = true;
bool supports_glsl_cache = false;
g_ogl_config.gl_vendor = (const char*)glGetString(GL_VENDOR);
g_ogl_config.gl_renderer = (const char*)glGetString(GL_RENDERER);
g_ogl_config.gl_version = (const char*)glGetString(GL_VERSION);
InitDriverInfo();
if (!m_main_gl_context->IsGLES())
{
if (!GLExtensions::Supports("GL_ARB_framebuffer_object"))
{
// We want the ogl3 framebuffer instead of the ogl2 one for better blitting support.
// It's also compatible with the gles3 one.
PanicAlert("GPU: ERROR: Need GL_ARB_framebuffer_object for multiple render targets.\n"
"GPU: Does your video card support OpenGL 3.0?");
bSuccess = false;
}
if (!GLExtensions::Supports("GL_ARB_vertex_array_object"))
{
// This extension is used to replace lots of pointer setting function.
// Also gles3 requires to use it.
PanicAlert("GPU: OGL ERROR: Need GL_ARB_vertex_array_object.\n"
"GPU: Does your video card support OpenGL 3.0?");
bSuccess = false;
}
if (!GLExtensions::Supports("GL_ARB_map_buffer_range"))
{
// ogl3 buffer mapping for better streaming support.
// The ogl2 one also isn't in gles3.
PanicAlert("GPU: OGL ERROR: Need GL_ARB_map_buffer_range.\n"
"GPU: Does your video card support OpenGL 3.0?");
bSuccess = false;
}
if (!GLExtensions::Supports("GL_ARB_uniform_buffer_object"))
{
// ubo allow us to keep the current constants on shader switches
// we also can stream them much nicer and pack into it whatever we want to
PanicAlert("GPU: OGL ERROR: Need GL_ARB_uniform_buffer_object.\n"
"GPU: Does your video card support OpenGL 3.1?");
bSuccess = false;
}
else if (DriverDetails::HasBug(DriverDetails::BUG_BROKEN_UBO))
{
PanicAlert(
"Buggy GPU driver detected.\n"
"Please either install the closed-source GPU driver or update your Mesa 3D version.");
bSuccess = false;
}
if (!GLExtensions::Supports("GL_ARB_sampler_objects"))
{
// Our sampler cache uses this extension. It could easyly be workaround and it's by far the
// highest requirement, but it seems that no driver lacks support for it.
PanicAlert("GPU: OGL ERROR: Need GL_ARB_sampler_objects.\n"
"GPU: Does your video card support OpenGL 3.3?");
bSuccess = false;
}
// OpenGL 3 doesn't provide GLES like float functions for depth.
// They are in core in OpenGL 4.1, so almost every driver should support them.
// But for the oldest ones, we provide fallbacks to the old double functions.
if (!GLExtensions::Supports("GL_ARB_ES2_compatibility"))
{
glDepthRangef = DepthRangef;
glClearDepthf = ClearDepthf;
}
}
// Copy the GPU name to g_Config, so Analytics can see it.
g_Config.backend_info.AdapterName = g_ogl_config.gl_renderer;
g_Config.backend_info.bSupportsDualSourceBlend =
(GLExtensions::Supports("GL_ARB_blend_func_extended") ||
GLExtensions::Supports("GL_EXT_blend_func_extended"));
g_Config.backend_info.bSupportsPrimitiveRestart =
!DriverDetails::HasBug(DriverDetails::BUG_PRIMITIVE_RESTART) &&
((GLExtensions::Version() >= 310) || GLExtensions::Supports("GL_NV_primitive_restart"));
g_Config.backend_info.bSupportsFragmentStoresAndAtomics =
GLExtensions::Supports("GL_ARB_shader_storage_buffer_object");
g_Config.backend_info.bSupportsBBox = g_Config.backend_info.bSupportsFragmentStoresAndAtomics;
g_Config.backend_info.bSupportsGSInstancing = GLExtensions::Supports("GL_ARB_gpu_shader5");
g_Config.backend_info.bSupportsSSAA = GLExtensions::Supports("GL_ARB_gpu_shader5") &&
GLExtensions::Supports("GL_ARB_sample_shading");
g_Config.backend_info.bSupportsGeometryShaders =
GLExtensions::Version() >= 320 &&
!DriverDetails::HasBug(DriverDetails::BUG_BROKEN_GEOMETRY_SHADERS);
g_Config.backend_info.bSupportsPaletteConversion =
GLExtensions::Supports("GL_ARB_texture_buffer_object") ||
GLExtensions::Supports("GL_OES_texture_buffer") ||
GLExtensions::Supports("GL_EXT_texture_buffer");
g_Config.backend_info.bSupportsClipControl = GLExtensions::Supports("GL_ARB_clip_control");
g_ogl_config.bSupportsCopySubImage =
(GLExtensions::Supports("GL_ARB_copy_image") || GLExtensions::Supports("GL_NV_copy_image") ||
GLExtensions::Supports("GL_EXT_copy_image") ||
GLExtensions::Supports("GL_OES_copy_image")) &&
!DriverDetails::HasBug(DriverDetails::BUG_BROKEN_COPYIMAGE);
g_ogl_config.bSupportsTextureSubImage = GLExtensions::Supports("ARB_get_texture_sub_image");
// Desktop OpenGL supports the binding layout if it supports 420pack
// OpenGL ES 3.1 supports it implicitly without an extension
g_Config.backend_info.bSupportsBindingLayout =
GLExtensions::Supports("GL_ARB_shading_language_420pack");
// Clip distance support is useless without a method to clamp the depth range
g_Config.backend_info.bSupportsDepthClamp = GLExtensions::Supports("GL_ARB_depth_clamp");
// Desktop OpenGL supports bitfield manulipation and dynamic sampler indexing if it supports
// shader5. OpenGL ES 3.1 supports it implicitly without an extension
g_Config.backend_info.bSupportsBitfield = GLExtensions::Supports("GL_ARB_gpu_shader5");
g_Config.backend_info.bSupportsDynamicSamplerIndexing =
GLExtensions::Supports("GL_ARB_gpu_shader5");
g_ogl_config.bIsES = m_main_gl_context->IsGLES();
supports_glsl_cache = GLExtensions::Supports("GL_ARB_get_program_binary");
g_ogl_config.bSupportsGLPinnedMemory = GLExtensions::Supports("GL_AMD_pinned_memory");
g_ogl_config.bSupportsGLSync = GLExtensions::Supports("GL_ARB_sync");
g_ogl_config.bSupportsGLBaseVertex = GLExtensions::Supports("GL_ARB_draw_elements_base_vertex") ||
GLExtensions::Supports("GL_EXT_draw_elements_base_vertex") ||
GLExtensions::Supports("GL_OES_draw_elements_base_vertex");
g_ogl_config.bSupportsGLBufferStorage = GLExtensions::Supports("GL_ARB_buffer_storage") ||
GLExtensions::Supports("GL_EXT_buffer_storage");
g_ogl_config.bSupportsMSAA = GLExtensions::Supports("GL_ARB_texture_multisample");
g_ogl_config.bSupportViewportFloat = GLExtensions::Supports("GL_ARB_viewport_array");
g_ogl_config.bSupportsDebug =
GLExtensions::Supports("GL_KHR_debug") || GLExtensions::Supports("GL_ARB_debug_output");
g_ogl_config.bSupportsTextureStorage = GLExtensions::Supports("GL_ARB_texture_storage");
g_ogl_config.bSupports3DTextureStorageMultisample =
GLExtensions::Supports("GL_ARB_texture_storage_multisample") ||
GLExtensions::Supports("GL_OES_texture_storage_multisample_2d_array");
g_ogl_config.bSupports2DTextureStorageMultisample =
GLExtensions::Supports("GL_ARB_texture_storage_multisample");
g_ogl_config.bSupportsImageLoadStore = GLExtensions::Supports("GL_ARB_shader_image_load_store");
g_ogl_config.bSupportsConservativeDepth = GLExtensions::Supports("GL_ARB_conservative_depth");
g_ogl_config.bSupportsAniso = GLExtensions::Supports("GL_EXT_texture_filter_anisotropic");
g_Config.backend_info.bSupportsComputeShaders = GLExtensions::Supports("GL_ARB_compute_shader");
g_Config.backend_info.bSupportsST3CTextures =
GLExtensions::Supports("GL_EXT_texture_compression_s3tc");
g_Config.backend_info.bSupportsBPTCTextures =
GLExtensions::Supports("GL_ARB_texture_compression_bptc");
if (m_main_gl_context->IsGLES())
{
g_ogl_config.SupportedESPointSize =
GLExtensions::Supports("GL_OES_geometry_point_size") ?
1 :
GLExtensions::Supports("GL_EXT_geometry_point_size") ? 2 : 0;
g_ogl_config.SupportedESTextureBuffer = GLExtensions::Supports("VERSION_GLES_3_2") ?
EsTexbufType::TexbufCore :
GLExtensions::Supports("GL_OES_texture_buffer") ?
EsTexbufType::TexbufOes :
GLExtensions::Supports("GL_EXT_texture_buffer") ?
EsTexbufType::TexbufExt :
EsTexbufType::TexbufNone;
supports_glsl_cache = true;
g_ogl_config.bSupportsGLSync = true;
// TODO: Implement support for GL_EXT_clip_cull_distance when there is an extension for
// depth clamping.
g_Config.backend_info.bSupportsDepthClamp = false;
// GLES does not support logic op.
g_Config.backend_info.bSupportsLogicOp = false;
if (GLExtensions::Supports("GL_EXT_shader_framebuffer_fetch"))
{
g_ogl_config.SupportedFramebufferFetch = EsFbFetchType::FbFetchExt;
}
else if (GLExtensions::Supports("GL_ARM_shader_framebuffer_fetch"))
{
g_ogl_config.SupportedFramebufferFetch = EsFbFetchType::FbFetchArm;
}
else
{
g_ogl_config.SupportedFramebufferFetch = EsFbFetchType::FbFetchNone;
}
g_Config.backend_info.bSupportsFramebufferFetch =
g_ogl_config.SupportedFramebufferFetch != EsFbFetchType::FbFetchNone;
if (GLExtensions::Version() == 300)
{
g_ogl_config.eSupportedGLSLVersion = GlslEs300;
g_ogl_config.bSupportsAEP = false;
g_ogl_config.bSupportsTextureStorage = true;
g_Config.backend_info.bSupportsGeometryShaders = false;
}
else if (GLExtensions::Version() == 310)
{
g_ogl_config.eSupportedGLSLVersion = GlslEs310;
g_ogl_config.bSupportsAEP = GLExtensions::Supports("GL_ANDROID_extension_pack_es31a");
g_Config.backend_info.bSupportsBindingLayout = true;
g_ogl_config.bSupportsImageLoadStore = true;
g_Config.backend_info.bSupportsGeometryShaders = g_ogl_config.bSupportsAEP;
g_Config.backend_info.bSupportsComputeShaders = true;
g_Config.backend_info.bSupportsGSInstancing =
g_Config.backend_info.bSupportsGeometryShaders && g_ogl_config.SupportedESPointSize > 0;
g_Config.backend_info.bSupportsSSAA = g_ogl_config.bSupportsAEP;
g_Config.backend_info.bSupportsFragmentStoresAndAtomics = true;
g_ogl_config.bSupportsMSAA = true;
g_ogl_config.bSupportsTextureStorage = true;
g_ogl_config.bSupports2DTextureStorageMultisample = true;
g_Config.backend_info.bSupportsBitfield = true;
g_Config.backend_info.bSupportsDynamicSamplerIndexing = g_ogl_config.bSupportsAEP;
if (g_ActiveConfig.stereo_mode != StereoMode::Off && g_ActiveConfig.iMultisamples > 1 &&
!g_ogl_config.bSupports3DTextureStorageMultisample)
{
// GLES 3.1 can't support stereo rendering and MSAA
OSD::AddMessage("MSAA Stereo rendering isn't supported by your GPU.", 10000);
Config::SetCurrent(Config::GFX_MSAA, UINT32_C(1));
}
}
else
{
g_ogl_config.eSupportedGLSLVersion = GlslEs320;
g_ogl_config.bSupportsAEP = GLExtensions::Supports("GL_ANDROID_extension_pack_es31a");
g_Config.backend_info.bSupportsBindingLayout = true;
g_ogl_config.bSupportsImageLoadStore = true;
g_Config.backend_info.bSupportsGeometryShaders = true;
g_Config.backend_info.bSupportsComputeShaders = true;
g_Config.backend_info.bSupportsGSInstancing = g_ogl_config.SupportedESPointSize > 0;
g_Config.backend_info.bSupportsPaletteConversion = true;
g_Config.backend_info.bSupportsSSAA = true;
g_Config.backend_info.bSupportsFragmentStoresAndAtomics = true;
g_ogl_config.bSupportsCopySubImage = true;
g_ogl_config.bSupportsGLBaseVertex = true;
g_ogl_config.bSupportsDebug = true;
g_ogl_config.bSupportsMSAA = true;
g_ogl_config.bSupportsTextureStorage = true;
g_ogl_config.bSupports2DTextureStorageMultisample = true;
g_ogl_config.bSupports3DTextureStorageMultisample = true;
g_Config.backend_info.bSupportsBitfield = true;
g_Config.backend_info.bSupportsDynamicSamplerIndexing = true;
}
}
else
{
if (GLExtensions::Version() < 300)
{
PanicAlert("GPU: OGL ERROR: Need at least GLSL 1.30\n"
"GPU: Does your video card support OpenGL 3.0?\n"
"GPU: Your driver supports GLSL %s",
(const char*)glGetString(GL_SHADING_LANGUAGE_VERSION));
bSuccess = false;
}
else if (GLExtensions::Version() == 300)
{
g_ogl_config.eSupportedGLSLVersion = Glsl130;
g_ogl_config.bSupportsImageLoadStore = false; // layout keyword is only supported on glsl150+
g_ogl_config.bSupportsConservativeDepth =
false; // layout keyword is only supported on glsl150+
g_Config.backend_info.bSupportsGeometryShaders =
false; // geometry shaders are only supported on glsl150+
}
else if (GLExtensions::Version() == 310)
{
g_ogl_config.eSupportedGLSLVersion = Glsl140;
g_ogl_config.bSupportsImageLoadStore = false; // layout keyword is only supported on glsl150+
g_ogl_config.bSupportsConservativeDepth =
false; // layout keyword is only supported on glsl150+
g_Config.backend_info.bSupportsGeometryShaders =
false; // geometry shaders are only supported on glsl150+
}
else if (GLExtensions::Version() == 320)
{
g_ogl_config.eSupportedGLSLVersion = Glsl150;
}
else if (GLExtensions::Version() == 330)
{
g_ogl_config.eSupportedGLSLVersion = Glsl330;
}
else if (GLExtensions::Version() >= 430)
{
// TODO: We should really parse the GL_SHADING_LANGUAGE_VERSION token.
g_ogl_config.eSupportedGLSLVersion = Glsl430;
g_ogl_config.bSupportsTextureStorage = true;
g_ogl_config.bSupportsImageLoadStore = true;
g_Config.backend_info.bSupportsSSAA = true;
// Compute shaders are core in GL4.3.
g_Config.backend_info.bSupportsComputeShaders = true;
if (GLExtensions::Version() >= 450)
g_ogl_config.bSupportsTextureSubImage = true;
}
else
{
g_ogl_config.eSupportedGLSLVersion = Glsl400;
g_Config.backend_info.bSupportsSSAA = true;
if (GLExtensions::Version() == 420)
{
// Texture storage and shader image load/store are core in GL4.2.
g_ogl_config.bSupportsTextureStorage = true;
g_ogl_config.bSupportsImageLoadStore = true;
}
}
// Desktop OpenGL can't have the Android Extension Pack
g_ogl_config.bSupportsAEP = false;
// Desktop GL requires GL_PROGRAM_POINT_SIZE set to use gl_PointSize in shaders.
// It is implicitly enabled in GLES.
glEnable(GL_PROGRAM_POINT_SIZE);
}
// Either method can do early-z tests. See PixelShaderGen for details.
g_Config.backend_info.bSupportsEarlyZ =
g_ogl_config.bSupportsImageLoadStore || g_ogl_config.bSupportsConservativeDepth;
glGetIntegerv(GL_MAX_SAMPLES, &g_ogl_config.max_samples);
if (g_ogl_config.max_samples < 1 || !g_ogl_config.bSupportsMSAA)
g_ogl_config.max_samples = 1;
g_ogl_config.bSupportsShaderThreadShuffleNV =
GLExtensions::Supports("GL_NV_shader_thread_shuffle");
// We require texel buffers, image load store, and compute shaders to enable GPU texture decoding.
// If the driver doesn't expose the extensions, but supports GL4.3/GLES3.1, it will still be
// enabled in the version check below.
g_Config.backend_info.bSupportsGPUTextureDecoding =
g_Config.backend_info.bSupportsPaletteConversion &&
g_Config.backend_info.bSupportsComputeShaders && g_ogl_config.bSupportsImageLoadStore;
// Background compiling is supported only when shared contexts aren't broken.
g_Config.backend_info.bSupportsBackgroundCompiling =
!DriverDetails::HasBug(DriverDetails::BUG_SHARED_CONTEXT_SHADER_COMPILATION);
// Program binaries are supported on GL4.1+, ARB_get_program_binary, or ES3.
if (supports_glsl_cache)
{
// We need to check the number of formats supported. If zero, don't bother getting the binaries.
GLint num_formats = 0;
glGetIntegerv(GL_NUM_PROGRAM_BINARY_FORMATS, &num_formats);
supports_glsl_cache = num_formats > 0;
}
g_Config.backend_info.bSupportsPipelineCacheData = supports_glsl_cache;
if (g_ogl_config.bSupportsDebug)
{
if (GLExtensions::Supports("GL_KHR_debug"))
{
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, nullptr, true);
glDebugMessageCallback(ErrorCallback, nullptr);
}
else
{
glDebugMessageControlARB(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, nullptr, true);
glDebugMessageCallbackARB(ErrorCallback, nullptr);
}
if (LogManager::GetInstance()->IsEnabled(LogTypes::HOST_GPU, LogTypes::LERROR))
{
glEnable(GL_DEBUG_OUTPUT);
}
else
{
glDisable(GL_DEBUG_OUTPUT);
}
}
int samples;
glGetIntegerv(GL_SAMPLES, &samples);
if (samples > 1)
{
// MSAA on default framebuffer isn't working because of glBlitFramebuffer.
// It also isn't useful as we don't render anything to the default framebuffer.
// We also try to get a non-msaa fb, so this only happens when forced by the driver.
PanicAlert("MSAA on default framebuffer isn't supported.\n"
"Please avoid forcing Dolphin to use MSAA by the driver.\n"
"%d samples on default framebuffer found.",
samples);
bSuccess = false;
}
if (!bSuccess)
{
// Not all needed extensions are supported, so we have to stop here.
// Else some of the next calls might crash.
return;
}
g_Config.VerifyValidity();
UpdateActiveConfig();
OSD::AddMessage(StringFromFormat("Video Info: %s, %s, %s", g_ogl_config.gl_vendor,
g_ogl_config.gl_renderer, g_ogl_config.gl_version),
5000);
if (!g_ogl_config.bSupportsGLBufferStorage && !g_ogl_config.bSupportsGLPinnedMemory)
{
OSD::AddMessage(StringFromFormat("Your OpenGL driver does not support %s_buffer_storage.",
m_main_gl_context->IsGLES() ? "EXT" : "ARB"),
60000);
OSD::AddMessage("This device's performance will be terrible.", 60000);
OSD::AddMessage("Please ask your device vendor for an updated OpenGL driver.", 60000);
}
WARN_LOG(VIDEO, "Missing OGL Extensions: %s%s%s%s%s%s%s%s%s%s%s%s%s%s",
g_ActiveConfig.backend_info.bSupportsDualSourceBlend ? "" : "DualSourceBlend ",
g_ActiveConfig.backend_info.bSupportsPrimitiveRestart ? "" : "PrimitiveRestart ",
g_ActiveConfig.backend_info.bSupportsEarlyZ ? "" : "EarlyZ ",
g_ogl_config.bSupportsGLPinnedMemory ? "" : "PinnedMemory ",
supports_glsl_cache ? "" : "ShaderCache ",
g_ogl_config.bSupportsGLBaseVertex ? "" : "BaseVertex ",
g_ogl_config.bSupportsGLBufferStorage ? "" : "BufferStorage ",
g_ogl_config.bSupportsGLSync ? "" : "Sync ", g_ogl_config.bSupportsMSAA ? "" : "MSAA ",
g_ActiveConfig.backend_info.bSupportsSSAA ? "" : "SSAA ",
g_ActiveConfig.backend_info.bSupportsGSInstancing ? "" : "GSInstancing ",
g_ActiveConfig.backend_info.bSupportsClipControl ? "" : "ClipControl ",
g_ogl_config.bSupportsCopySubImage ? "" : "CopyImageSubData ",
g_ActiveConfig.backend_info.bSupportsDepthClamp ? "" : "DepthClamp ");
// Handle VSync on/off
if (!DriverDetails::HasBug(DriverDetails::BUG_BROKEN_VSYNC))
m_main_gl_context->SwapInterval(g_ActiveConfig.bVSyncActive);
if (g_ActiveConfig.backend_info.bSupportsClipControl)
glClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE);
if (g_ActiveConfig.backend_info.bSupportsDepthClamp)
{
glEnable(GL_CLIP_DISTANCE0);
glEnable(GL_CLIP_DISTANCE1);
glEnable(GL_DEPTH_CLAMP);
}
glPixelStorei(GL_UNPACK_ALIGNMENT, 4); // 4-byte pixel alignment
glGenFramebuffers(1, &m_shared_read_framebuffer);
glGenFramebuffers(1, &m_shared_draw_framebuffer);
if (g_ActiveConfig.backend_info.bSupportsPrimitiveRestart)
GLUtil::EnablePrimitiveRestart(m_main_gl_context.get());
IndexGenerator::Init();
UpdateActiveConfig();
}
Renderer::~Renderer() = default;
bool Renderer::IsHeadless() const
{
return m_main_gl_context->IsHeadless();
}
bool Renderer::Initialize()
{
if (!::Renderer::Initialize())
return false;
return true;
}
void Renderer::Shutdown()
{
::Renderer::Shutdown();
glDeleteFramebuffers(1, &m_shared_draw_framebuffer);
glDeleteFramebuffers(1, &m_shared_read_framebuffer);
}
std::unique_ptr<AbstractTexture> Renderer::CreateTexture(const TextureConfig& config)
{
return std::make_unique<OGLTexture>(config);
}
std::unique_ptr<AbstractStagingTexture> Renderer::CreateStagingTexture(StagingTextureType type,
const TextureConfig& config)
{
return OGLStagingTexture::Create(type, config);
}
std::unique_ptr<AbstractFramebuffer> Renderer::CreateFramebuffer(AbstractTexture* color_attachment,
AbstractTexture* depth_attachment)
{
return OGLFramebuffer::Create(static_cast<OGLTexture*>(color_attachment),
static_cast<OGLTexture*>(depth_attachment));
}
std::unique_ptr<AbstractShader> Renderer::CreateShaderFromSource(ShaderStage stage,
std::string_view source)
{
return OGLShader::CreateFromSource(stage, source);
}
std::unique_ptr<AbstractShader> Renderer::CreateShaderFromBinary(ShaderStage stage,
const void* data, size_t length)
{
return nullptr;
}
std::unique_ptr<AbstractPipeline> Renderer::CreatePipeline(const AbstractPipelineConfig& config,
const void* cache_data,
size_t cache_data_length)
{
return OGLPipeline::Create(config, cache_data, cache_data_length);
}
void Renderer::SetScissorRect(const MathUtil::Rectangle<int>& rc)
{
glScissor(rc.left, rc.top, rc.GetWidth(), rc.GetHeight());
}
u16 Renderer::BBoxRead(int index)
{
// swap 2 and 3 for top/bottom
if (index >= 2)
index ^= 1;
int value = BoundingBox::Get(index);
if (index >= 2)
{
// up/down -- we have to swap up and down
value = EFB_HEIGHT - value;
}
return static_cast<u16>(value);
}
void Renderer::BBoxWrite(int index, u16 value)
{
s32 swapped_value = value;
if (index >= 2)
{
index ^= 1; // swap 2 and 3 for top/bottom
swapped_value = EFB_HEIGHT - swapped_value;
}
BoundingBox::Set(index, swapped_value);
}
void Renderer::SetViewport(float x, float y, float width, float height, float near_depth,
float far_depth)
{
if (g_ogl_config.bSupportViewportFloat)
{
glViewportIndexedf(0, x, y, width, height);
}
else
{
auto iceilf = [](float f) { return static_cast<GLint>(std::ceil(f)); };
glViewport(iceilf(x), iceilf(y), iceilf(width), iceilf(height));
}
glDepthRangef(near_depth, far_depth);
}
void Renderer::Draw(u32 base_vertex, u32 num_vertices)
{
glDrawArrays(static_cast<const OGLPipeline*>(m_current_pipeline)->GetGLPrimitive(), base_vertex,
num_vertices);
}
void Renderer::DrawIndexed(u32 base_index, u32 num_indices, u32 base_vertex)
{
if (g_ogl_config.bSupportsGLBaseVertex)
{
glDrawElementsBaseVertex(static_cast<const OGLPipeline*>(m_current_pipeline)->GetGLPrimitive(),
num_indices, GL_UNSIGNED_SHORT,
static_cast<u16*>(nullptr) + base_index, base_vertex);
}
else
{
glDrawElements(static_cast<const OGLPipeline*>(m_current_pipeline)->GetGLPrimitive(),
num_indices, GL_UNSIGNED_SHORT, static_cast<u16*>(nullptr) + base_index);
}
}
void Renderer::DispatchComputeShader(const AbstractShader* shader, u32 groups_x, u32 groups_y,
u32 groups_z)
{
glUseProgram(static_cast<const OGLShader*>(shader)->GetGLComputeProgramID());
glDispatchCompute(groups_x, groups_y, groups_z);
// We messed up the program binding, so restore it.
ProgramShaderCache::InvalidateLastProgram();
if (m_current_pipeline)
static_cast<const OGLPipeline*>(m_current_pipeline)->GetProgram()->shader.Bind();
// Barrier to texture can be used for reads.
if (m_bound_image_texture)
glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT);
}
void Renderer::ClearScreen(const MathUtil::Rectangle<int>& rc, bool colorEnable, bool alphaEnable,
bool zEnable, u32 color, u32 z)
{
g_framebuffer_manager->FlushEFBPokes();
g_framebuffer_manager->FlagPeekCacheAsOutOfDate();
u32 clear_mask = 0;
if (colorEnable || alphaEnable)
{
glColorMask(colorEnable, colorEnable, colorEnable, alphaEnable);
glClearColor(float((color >> 16) & 0xFF) / 255.0f, float((color >> 8) & 0xFF) / 255.0f,
float((color >> 0) & 0xFF) / 255.0f, float((color >> 24) & 0xFF) / 255.0f);
clear_mask = GL_COLOR_BUFFER_BIT;
}
if (zEnable)
{
glDepthMask(zEnable ? GL_TRUE : GL_FALSE);
glClearDepthf(float(z & 0xFFFFFF) / 16777216.0f);
clear_mask |= GL_DEPTH_BUFFER_BIT;
}
// Update rect for clearing the picture
// glColorMask/glDepthMask/glScissor affect glClear (glViewport does not)
const auto converted_target_rc =
ConvertFramebufferRectangle(ConvertEFBRectangle(rc), m_current_framebuffer);
SetScissorRect(converted_target_rc);
glClear(clear_mask);
// Restore color/depth mask.
if (colorEnable || alphaEnable)
{
glColorMask(m_current_blend_state.colorupdate, m_current_blend_state.colorupdate,
m_current_blend_state.colorupdate, m_current_blend_state.alphaupdate);
}
if (zEnable)
glDepthMask(m_current_depth_state.updateenable);
// Scissor rect must be restored.
BPFunctions::SetScissor();
}
void Renderer::RenderXFBToScreen(const AbstractTexture* texture, const MathUtil::Rectangle<int>& rc)
{
// Quad-buffered stereo is annoying on GL.
if (g_ActiveConfig.stereo_mode != StereoMode::QuadBuffer)
return ::Renderer::RenderXFBToScreen(texture, rc);
const auto target_rc = GetTargetRectangle();
glDrawBuffer(GL_BACK_LEFT);
m_post_processor->BlitFromTexture(target_rc, rc, texture, 0);
glDrawBuffer(GL_BACK_RIGHT);
m_post_processor->BlitFromTexture(target_rc, rc, texture, 1);
glDrawBuffer(GL_BACK);
}
void Renderer::SetFramebuffer(AbstractFramebuffer* framebuffer)
{
if (m_current_framebuffer == framebuffer)