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b93983b50a
dolphin/Source/Core/VideoBackends/OGL/OGLRender.cpp
JosJuice b93983b50a Remove Atomic.h 
The STL has everything we need nowadays.

I have tried to not alter any behavior or semantics with this
change wherever possible. In particular, WriteLow and WriteHigh
in CommandProcessor retain the ability to accidentally undo
another thread's write to the upper half or lower half
respectively. If that should be fixed, it should be done in a
separate commit for clarity. One thing did change: The places
where we were using += on a volatile variable (not an atomic
operation) are now using fetch_add (actually an atomic operation).

Tested with single core and dual core on x86-64 and AArch64.
2021-05-13 18:56:27 +02:00

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// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "VideoBackends/OGL/OGLRender.h"
#include <algorithm>
#include <cinttypes>
#include <cmath>
#include <cstdio>
#include <memory>
#include <string>
#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 "VideoBackends/OGL/OGLBoundingBox.h"
#include "VideoBackends/OGL/OGLPipeline.h"
#include "VideoBackends/OGL/OGLShader.h"
#include "VideoBackends/OGL/OGLTexture.h"
#include "VideoBackends/OGL/OGLVertexManager.h"
#include "VideoBackends/OGL/ProgramShaderCache.h"
#include "VideoBackends/OGL/SamplerCache.h"
#include "VideoCommon/BPFunctions.h"
#include "VideoCommon/DriverDetails.h"
#include "VideoCommon/FramebufferManager.h"
#include "VideoCommon/OnScreenDisplay.h"
#include "VideoCommon/PostProcessing.h"
#include "VideoCommon/RenderState.h"
#include "VideoCommon/VideoCommon.h"
#include "VideoCommon/VideoConfig.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_FMT(HOST_GPU, "id: {:x}, source: {}, type: {} - {}", id, s_source, s_type, message);
break;
case GL_DEBUG_SEVERITY_MEDIUM_ARB:
WARN_LOG_FMT(HOST_GPU, "id: {:x}, source: {}, type: {} - {}", id, s_source, s_type, message);
break;
case GL_DEBUG_SEVERITY_LOW_ARB:
DEBUG_LOG_FMT(HOST_GPU, "id: {:x}, source: {}, type: {} - {}", id, s_source, s_type, message);
break;
case GL_DEBUG_SEVERITY_NOTIFICATION:
DEBUG_LOG_FMT(HOST_GPU, "id: {:x}, source: {}, type: {} - {}", id, s_source, s_type, message);
break;
default:
ERROR_LOG_FMT(HOST_GPU, "id: {:x}, source: {}, type: {} - {}", 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()
{
const std::string_view svendor(g_ogl_config.gl_vendor);
const std::string_view srenderer(g_ogl_config.gl_renderer);
const std::string_view sversion(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")
{
if (srenderer != "NVIDIA Tegra")
{
vendor = DriverDetails::VENDOR_NVIDIA;
}
else
{
vendor = DriverDetails::VENDOR_TEGRA;
}
}
else if (svendor == "ATI Technologies Inc." || svendor == "Advanced Micro Devices, Inc.")
{
vendor = DriverDetails::VENDOR_ATI;
}
else if (sversion.find("Mesa") != std::string::npos)
{
vendor = DriverDetails::VENDOR_MESA;
}
else if (svendor.find("Intel") != std::string::npos)
{
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 == "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 (srenderer.find("AMD") != std::string::npos ||
srenderer.find("ATI") != std::string::npos)
{
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_FMT(VIDEO, "Version changeID overflow - change:{} scale:{}", 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.
PanicAlertFmtT("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.
PanicAlertFmtT("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.
PanicAlertFmtT("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
PanicAlertFmtT("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))
{
PanicAlertFmtT(
"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.
PanicAlertFmtT("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.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;
// glReadPixels() can't be used with non-color formats. But, if we support
// ARB_get_texture_sub_image (unlikely, except maybe on NVIDIA), we can use that instead.
g_Config.backend_info.bSupportsDepthReadback = g_ogl_config.bSupportsTextureSubImage;
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)
{
PanicAlertFmtT("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 {0}",
reinterpret_cast<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);
}
g_Config.backend_info.bSupportsBBox = g_Config.backend_info.bSupportsFragmentStoresAndAtomics;
// 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 (Common::Log::LogManager::GetInstance()->IsEnabled(Common::Log::HOST_GPU,
Common::Log::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.
PanicAlertFmtT(
"The graphics driver is forcibly enabling anti-aliasing for Dolphin. You need to "
"turn this off in the graphics driver's settings in order for Dolphin to work.\n\n"
"(MSAA with {0} samples found on default framebuffer)",
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(fmt::format("Video Info: {}, {}, {}", 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(fmt::format("Your OpenGL driver does not support {}_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_FMT(VIDEO, "Missing OGL Extensions: {}{}{}{}{}{}{}{}{}{}{}{}{}{}",
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());
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 MathUtil::Rectangle<int>& target_rc,
const AbstractTexture* source_texture,
const MathUtil::Rectangle<int>& source_rc)
{
// Quad-buffered stereo is annoying on GL.
if (g_ActiveConfig.stereo_mode != StereoMode::QuadBuffer)
return ::Renderer::RenderXFBToScreen(target_rc, source_texture, source_rc);
glDrawBuffer(GL_BACK_LEFT);
m_post_processor->BlitFromTexture(target_rc, source_rc, source_texture, 0);
glDrawBuffer(GL_BACK_RIGHT);
m_post_processor->BlitFromTexture(target_rc, source_rc, source_texture, 1);
glDrawBuffer(GL_BACK);
}
void Renderer::SetFramebuffer(AbstractFramebuffer* framebuffer)
{
if (m_current_framebuffer == framebuffer)
return;
glBindFramebuffer(GL_FRAMEBUFFER, static_cast<OGLFramebuffer*>(framebuffer)->GetFBO());
m_current_framebuffer = framebuffer;
}
void Renderer::SetAndDiscardFramebuffer(AbstractFramebuffer* framebuffer)
{
// EXT_discard_framebuffer could be used here to save bandwidth on tilers.
SetFramebuffer(framebuffer);
}
void Renderer::SetAndClearFramebuffer(AbstractFramebuffer* framebuffer,
const ClearColor& color_value, float depth_value)
{
SetFramebuffer(framebuffer);
glDisable(GL_SCISSOR_TEST);
GLbitfield clear_mask = 0;
if (framebuffer->HasColorBuffer())
{
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glClearColor(color_value[0], color_value[1], color_value[2], color_value[3]);
clear_mask |= GL_COLOR_BUFFER_BIT;
}
if (framebuffer->HasDepthBuffer())
{
glDepthMask(GL_TRUE);
glClearDepthf(depth_value);
clear_mask |= GL_DEPTH_BUFFER_BIT;
}
glClear(clear_mask);
glEnable(GL_SCISSOR_TEST);
// Restore color/depth mask.
if (framebuffer->HasColorBuffer())
{
glColorMask(m_current_blend_state.colorupdate, m_current_blend_state.colorupdate,
m_current_blend_state.colorupdate, m_current_blend_state.alphaupdate);
}
if (framebuffer->HasDepthBuffer())
glDepthMask(m_current_depth_state.updateenable);
}
void Renderer::BindBackbuffer(const ClearColor& clear_color)
{
CheckForSurfaceChange();
CheckForSurfaceResize();
SetAndClearFramebuffer(m_system_framebuffer.get(), clear_color);
}
void Renderer::PresentBackbuffer()
{
if (g_ogl_config.bSupportsDebug)
{
if (Common::Log::LogManager::GetInstance()->IsEnabled(Common::Log::HOST_GPU,
Common::Log::LERROR))
{
glEnable(GL_DEBUG_OUTPUT);
}
else
{
glDisable(GL_DEBUG_OUTPUT);
}
}
// Swap the back and front buffers, presenting the image.
m_main_gl_context->Swap();
}
void Renderer::OnConfigChanged(u32 bits)
{
if (bits & CONFIG_CHANGE_BIT_VSYNC && !DriverDetails::HasBug(DriverDetails::BUG_BROKEN_VSYNC))
m_main_gl_context->SwapInterval(g_ActiveConfig.bVSyncActive);
if (bits & CONFIG_CHANGE_BIT_ANISOTROPY)
g_sampler_cache->Clear();
}
void Renderer::Flush()
{
// ensure all commands are sent to the GPU.
// Otherwise the driver could batch several frames together.
glFlush();
}
void Renderer::WaitForGPUIdle()
{
glFinish();
}
void Renderer::CheckForSurfaceChange()
{
if (!m_surface_changed.TestAndClear())
return;
m_main_gl_context->UpdateSurface(m_new_surface_handle);
m_new_surface_handle = nullptr;
// With a surface change, the window likely has new dimensions.
m_backbuffer_width = m_main_gl_context->GetBackBufferWidth();
m_backbuffer_height = m_main_gl_context->GetBackBufferHeight();
m_system_framebuffer->UpdateDimensions(m_backbuffer_width, m_backbuffer_height);
}
void Renderer::CheckForSurfaceResize()
{
if (!m_surface_resized.TestAndClear())
return;
m_main_gl_context->Update();
m_backbuffer_width = m_main_gl_context->GetBackBufferWidth();
m_backbuffer_height = m_main_gl_context->GetBackBufferHeight();
m_system_framebuffer->UpdateDimensions(m_backbuffer_width, m_backbuffer_height);
}
void Renderer::BeginUtilityDrawing()
{
::Renderer::BeginUtilityDrawing();
if (g_ActiveConfig.backend_info.bSupportsDepthClamp)
{
glDisable(GL_CLIP_DISTANCE0);
glDisable(GL_CLIP_DISTANCE1);
}
}
void Renderer::EndUtilityDrawing()
{
::Renderer::EndUtilityDrawing();
if (g_ActiveConfig.backend_info.bSupportsDepthClamp)
{
glEnable(GL_CLIP_DISTANCE0);
glEnable(GL_CLIP_DISTANCE1);
}
}
void Renderer::ApplyRasterizationState(const RasterizationState state)
{
if (m_current_rasterization_state == state)
return;
// none, ccw, cw, ccw
if (state.cullmode != CullMode::None)
{
// TODO: GX_CULL_ALL not supported, yet!
glEnable(GL_CULL_FACE);
glFrontFace(state.cullmode == CullMode::Front ? GL_CCW : GL_CW);
}
else
{
glDisable(GL_CULL_FACE);
}
m_current_rasterization_state = state;
}
void Renderer::ApplyDepthState(const DepthState state)
{
if (m_current_depth_state == state)
return;
const GLenum glCmpFuncs[8] = {GL_NEVER, GL_LESS, GL_EQUAL, GL_LEQUAL,
GL_GREATER, GL_NOTEQUAL, GL_GEQUAL, GL_ALWAYS};
if (state.testenable)
{
glEnable(GL_DEPTH_TEST);
glDepthMask(state.updateenable ? GL_TRUE : GL_FALSE);
glDepthFunc(glCmpFuncs[u32(state.func.Value())]);
}
else
{
// if the test is disabled write is disabled too
// TODO: When PE performance metrics are being emulated via occlusion queries, we should
// (probably?) enable depth test with depth function ALWAYS here
glDisable(GL_DEPTH_TEST);
glDepthMask(GL_FALSE);
}
m_current_depth_state = state;
}
void Renderer::ApplyBlendingState(const BlendingState state)
{
if (m_current_blend_state == state)
return;
bool useDualSource =
state.usedualsrc && g_ActiveConfig.backend_info.bSupportsDualSourceBlend &&
(!DriverDetails::HasBug(DriverDetails::BUG_BROKEN_DUAL_SOURCE_BLENDING) || state.dstalpha);
// Only use shader blend if we need to and we don't support dual-source blending directly
bool useShaderBlend = !useDualSource && state.usedualsrc && state.dstalpha &&
g_ActiveConfig.backend_info.bSupportsFramebufferFetch;
if (useShaderBlend)
{
glDisable(GL_BLEND);
}
else
{
const GLenum src_factors[8] = {GL_ZERO,
GL_ONE,
GL_DST_COLOR,
GL_ONE_MINUS_DST_COLOR,
useDualSource ? GL_SRC1_ALPHA : (GLenum)GL_SRC_ALPHA,
useDualSource ? GL_ONE_MINUS_SRC1_ALPHA :
(GLenum)GL_ONE_MINUS_SRC_ALPHA,
GL_DST_ALPHA,
GL_ONE_MINUS_DST_ALPHA};
const GLenum dst_factors[8] = {GL_ZERO,
GL_ONE,
GL_SRC_COLOR,
GL_ONE_MINUS_SRC_COLOR,
useDualSource ? GL_SRC1_ALPHA : (GLenum)GL_SRC_ALPHA,
useDualSource ? GL_ONE_MINUS_SRC1_ALPHA :
(GLenum)GL_ONE_MINUS_SRC_ALPHA,
GL_DST_ALPHA,
GL_ONE_MINUS_DST_ALPHA};
if (state.blendenable)
glEnable(GL_BLEND);
else
glDisable(GL_BLEND);
// Always call glBlendEquationSeparate and glBlendFuncSeparate, even when
// GL_BLEND is disabled, as a workaround for some bugs (possibly graphics
// driver issues?). See https://bugs.dolphin-emu.org/issues/10120 : "Sonic
// Adventure 2 Battle: graphics crash when loading first Dark level"
GLenum equation = state.subtract ? GL_FUNC_REVERSE_SUBTRACT : GL_FUNC_ADD;
GLenum equationAlpha = state.subtractAlpha ? GL_FUNC_REVERSE_SUBTRACT : GL_FUNC_ADD;
glBlendEquationSeparate(equation, equationAlpha);
glBlendFuncSeparate(src_factors[u32(state.srcfactor.Value())],
dst_factors[u32(state.dstfactor.Value())],
src_factors[u32(state.srcfactoralpha.Value())],
dst_factors[u32(state.dstfactoralpha.Value())]);
}
const GLenum logic_op_codes[16] = {
GL_CLEAR, GL_AND, GL_AND_REVERSE, GL_COPY, GL_AND_INVERTED, GL_NOOP,
GL_XOR, GL_OR, GL_NOR, GL_EQUIV, GL_INVERT, GL_OR_REVERSE,
GL_COPY_INVERTED, GL_OR_INVERTED, GL_NAND, GL_SET};
// Logic ops aren't available in GLES3
if (!IsGLES())
{
if (state.logicopenable)
{
glEnable(GL_COLOR_LOGIC_OP);
glLogicOp(logic_op_codes[u32(state.logicmode.Value())]);
}
else
{
glDisable(GL_COLOR_LOGIC_OP);
}
}
glColorMask(state.colorupdate, state.colorupdate, state.colorupdate, state.alphaupdate);
m_current_blend_state = state;
}
void Renderer::SetPipeline(const AbstractPipeline* pipeline)
{
if (m_current_pipeline == pipeline)
return;
if (pipeline)
{
ApplyRasterizationState(static_cast<const OGLPipeline*>(pipeline)->GetRasterizationState());
ApplyDepthState(static_cast<const OGLPipeline*>(pipeline)->GetDepthState());
ApplyBlendingState(static_cast<const OGLPipeline*>(pipeline)->GetBlendingState());
ProgramShaderCache::BindVertexFormat(
static_cast<const OGLPipeline*>(pipeline)->GetVertexFormat());
static_cast<const OGLPipeline*>(pipeline)->GetProgram()->shader.Bind();
}
else
{
ProgramShaderCache::InvalidateLastProgram();
glUseProgram(0);
}
m_current_pipeline = pipeline;
}
void Renderer::SetTexture(u32 index, const AbstractTexture* texture)
{
const OGLTexture* gl_texture = static_cast<const OGLTexture*>(texture);
if (m_bound_textures[index] == gl_texture)
return;
glActiveTexture(GL_TEXTURE0 + index);
if (gl_texture)
glBindTexture(gl_texture->GetGLTarget(), gl_texture->GetGLTextureId());
else
glBindTexture(GL_TEXTURE_2D_ARRAY, 0);
m_bound_textures[index] = gl_texture;
}
void Renderer::SetSamplerState(u32 index, const SamplerState& state)
{
g_sampler_cache->SetSamplerState(index, state);
}
void Renderer::SetComputeImageTexture(AbstractTexture* texture, bool read, bool write)
{
if (m_bound_image_texture == texture)
return;
if (texture)
{
const GLenum access = read ? (write ? GL_READ_WRITE : GL_READ_ONLY) : GL_WRITE_ONLY;
glBindImageTexture(0, static_cast<OGLTexture*>(texture)->GetGLTextureId(), 0, GL_TRUE, 0,
access, static_cast<OGLTexture*>(texture)->GetGLFormatForImageTexture());
}
else
{
glBindImageTexture(0, 0, 0, GL_FALSE, 0, GL_READ_ONLY, GL_RGBA8);
}
m_bound_image_texture = texture;
}
void Renderer::UnbindTexture(const AbstractTexture* texture)
{
for (size_t i = 0; i < m_bound_textures.size(); i++)
{
if (m_bound_textures[i] != texture)
continue;
glActiveTexture(static_cast<GLenum>(GL_TEXTURE0 + i));
glBindTexture(GL_TEXTURE_2D_ARRAY, 0);
m_bound_textures[i] = nullptr;
}
if (m_bound_image_texture == texture)
{
glBindImageTexture(0, 0, 0, GL_FALSE, 0, GL_READ_ONLY, GL_RGBA8);
m_bound_image_texture = nullptr;
}
}
std::unique_ptr<VideoCommon::AsyncShaderCompiler> Renderer::CreateAsyncShaderCompiler()
{
return std::make_unique<SharedContextAsyncShaderCompiler>();
}
void Renderer::BindSharedReadFramebuffer()
{
glBindFramebuffer(GL_READ_FRAMEBUFFER, m_shared_read_framebuffer);
}
void Renderer::BindSharedDrawFramebuffer()
{
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_shared_draw_framebuffer);
}
void Renderer::RestoreFramebufferBinding()
{
glBindFramebuffer(
GL_FRAMEBUFFER,
m_current_framebuffer ? static_cast<OGLFramebuffer*>(m_current_framebuffer)->GetFBO() : 0);
}
} // namespace OGL
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