0ad/source/renderer/backend/gl/Device.cpp
bb 157c6af18e Make the space in 0 A.D. non-breaking throughout the codebase.
Avoid cases of filenames
Update years in terms and other legal(ish) documents
Don't update years in license headers, since change is not meaningful

Will add linter rule in seperate commit

Happy recompiling everyone!

Original Patch By: Nescio
Comment By: Gallaecio
Differential Revision: D2620
This was SVN commit r27786.
2023-07-27 20:54:46 +00:00

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/* Copyright (C) 2023 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#include "precompiled.h"
#include "Device.h"
#include "lib/external_libraries/libsdl.h"
#include "lib/hash.h"
#include "lib/ogl.h"
#include "ps/CLogger.h"
#include "ps/ConfigDB.h"
#include "ps/Profile.h"
#include "renderer/backend/gl/DeviceCommandContext.h"
#include "renderer/backend/gl/PipelineState.h"
#include "renderer/backend/gl/Texture.h"
#include "scriptinterface/JSON.h"
#include "scriptinterface/Object.h"
#include "scriptinterface/ScriptInterface.h"
#include "scriptinterface/ScriptRequest.h"
#if OS_WIN
// We can't include wutil directly because GL headers conflict with Windows
// until we use a proper GL loader.
extern void* wutil_GetAppHDC();
#endif
#include <algorithm>
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
#if !CONFIG2_GLES && (defined(SDL_VIDEO_DRIVER_X11) || defined(SDL_VIDEO_DRIVER_WAYLAND))
#if defined(SDL_VIDEO_DRIVER_X11)
#include <glad/glx.h>
#endif
#if defined(SDL_VIDEO_DRIVER_WAYLAND)
#include <glad/egl.h>
#endif
#include <SDL_syswm.h>
#endif // !CONFIG2_GLES && (defined(SDL_VIDEO_DRIVER_X11) || defined(SDL_VIDEO_DRIVER_WAYLAND))
namespace Renderer
{
namespace Backend
{
namespace GL
{
namespace
{
std::string GetNameImpl()
{
// GL_VENDOR+GL_RENDERER are good enough here, so we don't use WMI to detect the cards.
// On top of that WMI can cause crashes with Nvidia Optimus and some netbooks
// see http://trac.wildfiregames.com/ticket/1952
// http://trac.wildfiregames.com/ticket/1575
char cardName[128];
const char* vendor = reinterpret_cast<const char*>(glGetString(GL_VENDOR));
const char* renderer = reinterpret_cast<const char*>(glGetString(GL_RENDERER));
// Happens if called before GL initialization.
if (!vendor || !renderer)
return {};
sprintf_s(cardName, std::size(cardName), "%s %s", vendor, renderer);
// Remove crap from vendor names. (don't dare touch the model name -
// it's too risky, there are too many different strings).
#define SHORTEN(what, charsToKeep) \
if (!strncmp(cardName, what, std::size(what) - 1)) \
memmove(cardName + charsToKeep, cardName + std::size(what) - 1, (strlen(cardName) - (std::size(what) - 1) + 1) * sizeof(char));
SHORTEN("ATI Technologies Inc.", 3);
SHORTEN("NVIDIA Corporation", 6);
SHORTEN("S3 Graphics", 2); // returned by EnumDisplayDevices
SHORTEN("S3 Graphics, Incorporated", 2); // returned by GL_VENDOR
#undef SHORTEN
return cardName;
}
std::string GetVersionImpl()
{
return reinterpret_cast<const char*>(glGetString(GL_VERSION));
}
std::string GetDriverInformationImpl()
{
// Usually GL_VERSION contains both OpenGL and driver versions.
return reinterpret_cast<const char*>(glGetString(GL_VERSION));
}
std::vector<std::string> GetExtensionsImpl()
{
std::vector<std::string> extensions;
const std::string exts = ogl_ExtensionString();
boost::split(extensions, exts, boost::algorithm::is_space(), boost::token_compress_on);
std::sort(extensions.begin(), extensions.end());
return extensions;
}
void GLAD_API_PTR OnDebugMessage(
GLenum source, GLenum type, GLuint id, GLenum severity,
GLsizei UNUSED(length), const GLchar* message, const void* UNUSED(user_param))
{
std::string debugSource = "unknown";
std::string debugType = "unknown";
std::string debugSeverity = "unknown";
switch (source)
{
case GL_DEBUG_SOURCE_API:
debugSource = "the API";
break;
case GL_DEBUG_SOURCE_WINDOW_SYSTEM:
debugSource = "the window system";
break;
case GL_DEBUG_SOURCE_SHADER_COMPILER:
debugSource = "the shader compiler";
break;
case GL_DEBUG_SOURCE_THIRD_PARTY:
debugSource = "a third party";
break;
case GL_DEBUG_SOURCE_APPLICATION:
debugSource = "the application";
break;
case GL_DEBUG_SOURCE_OTHER:
debugSource = "somewhere";
break;
}
switch (type)
{
case GL_DEBUG_TYPE_ERROR:
debugType = "error";
break;
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR:
debugType = "deprecated behaviour";
break;
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR:
debugType = "undefined behaviour";
break;
case GL_DEBUG_TYPE_PORTABILITY:
debugType = "portability";
break;
case GL_DEBUG_TYPE_PERFORMANCE:
debugType = "performance";
break;
case GL_DEBUG_TYPE_OTHER:
debugType = "other";
break;
case GL_DEBUG_TYPE_MARKER:
debugType = "marker";
break;
case GL_DEBUG_TYPE_PUSH_GROUP:
debugType = "push group";
break;
case GL_DEBUG_TYPE_POP_GROUP:
debugType = "pop group";
break;
}
switch (severity)
{
case GL_DEBUG_SEVERITY_HIGH:
debugSeverity = "high";
break;
case GL_DEBUG_SEVERITY_MEDIUM:
debugSeverity = "medium";
break;
case GL_DEBUG_SEVERITY_LOW:
debugSeverity = "low";
break;
case GL_DEBUG_SEVERITY_NOTIFICATION:
debugSeverity = "notification";
break;
}
if (severity == GL_DEBUG_SEVERITY_NOTIFICATION)
{
debug_printf(
"OpenGL | %s: %s source: %s id %u: %s\n", debugSeverity.c_str(), debugType.c_str(), debugSource.c_str(), id, message);
}
else
{
LOGWARNING(
"OpenGL | %s: %s source: %s id %u: %s\n", debugSeverity.c_str(), debugType.c_str(), debugSource.c_str(), id, message);
}
}
} // anonymous namespace
// static
std::unique_ptr<IDevice> CDevice::Create(SDL_Window* window, const bool arb)
{
std::unique_ptr<CDevice> device(new CDevice());
if (window)
{
// According to https://wiki.libsdl.org/SDL_CreateWindow we don't need to
// call SDL_GL_LoadLibrary if we have a window with SDL_WINDOW_OPENGL,
// because it'll be called internally for the first created window.
device->m_Window = window;
device->m_Context = SDL_GL_CreateContext(device->m_Window);
if (!device->m_Context)
{
LOGERROR("SDL_GL_CreateContext failed: '%s'", SDL_GetError());
return nullptr;
}
SDL_GL_GetDrawableSize(window, &device->m_SurfaceDrawableWidth, &device->m_SurfaceDrawableHeight);
#if OS_WIN
ogl_Init(SDL_GL_GetProcAddress, wutil_GetAppHDC());
#elif (defined(SDL_VIDEO_DRIVER_X11) || defined(SDL_VIDEO_DRIVER_WAYLAND)) && !CONFIG2_GLES
SDL_SysWMinfo wminfo;
// The info structure must be initialized with the SDL version.
SDL_VERSION(&wminfo.version);
if (!SDL_GetWindowWMInfo(window, &wminfo))
{
LOGERROR("Failed to query SDL WM info: %s", SDL_GetError());
return nullptr;
}
switch (wminfo.subsystem)
{
#if defined(SDL_VIDEO_DRIVER_WAYLAND)
case SDL_SYSWM_WAYLAND:
// TODO: maybe we need to load X11 functions
// dynamically as well.
ogl_Init(SDL_GL_GetProcAddress,
GetWaylandDisplay(device->m_Window),
static_cast<int>(wminfo.subsystem));
break;
#endif
#if defined(SDL_VIDEO_DRIVER_X11)
case SDL_SYSWM_X11:
ogl_Init(SDL_GL_GetProcAddress,
GetX11Display(device->m_Window),
static_cast<int>(wminfo.subsystem));
break;
#endif
default:
ogl_Init(SDL_GL_GetProcAddress, nullptr,
static_cast<int>(wminfo.subsystem));
break;
}
#else
ogl_Init(SDL_GL_GetProcAddress);
#endif
}
else
{
#if OS_WIN
ogl_Init(SDL_GL_GetProcAddress, wutil_GetAppHDC());
#elif (defined(SDL_VIDEO_DRIVER_X11) || defined(SDL_VIDEO_DRIVER_WAYLAND)) && !CONFIG2_GLES
bool initialized = false;
// Currently we don't have access to the backend type without
// the window. So we use hack to detect X11.
#if defined(SDL_VIDEO_DRIVER_X11)
Display* display = XOpenDisplay(NULL);
if (display)
{
ogl_Init(SDL_GL_GetProcAddress, display, static_cast<int>(SDL_SYSWM_X11));
initialized = true;
}
#endif
#if defined(SDL_VIDEO_DRIVER_WAYLAND)
if (!initialized)
{
// glad will find default EGLDisplay internally.
ogl_Init(SDL_GL_GetProcAddress, nullptr, static_cast<int>(SDL_SYSWM_WAYLAND));
initialized = true;
}
#endif
if (!initialized)
{
LOGERROR("Can't initialize GL");
return nullptr;
}
#else
ogl_Init(SDL_GL_GetProcAddress);
#endif
#if OS_WIN || defined(SDL_VIDEO_DRIVER_X11) && !CONFIG2_GLES
// Hack to stop things looking very ugly when scrolling in Atlas.
ogl_SetVsyncEnabled(true);
#endif
}
// If we don't have GL2.0 then we don't have GLSL in core.
if (!arb && !ogl_HaveVersion(2, 0))
return nullptr;
if ((ogl_HaveExtensions(0, "GL_ARB_vertex_program", "GL_ARB_fragment_program", nullptr) // ARB
&& !ogl_HaveVersion(2, 0)) // GLSL
|| !ogl_HaveExtension("GL_ARB_vertex_buffer_object") // VBO
|| ogl_HaveExtensions(0, "GL_ARB_multitexture", "GL_EXT_draw_range_elements", nullptr)
|| (!ogl_HaveExtension("GL_EXT_framebuffer_object") && !ogl_HaveExtension("GL_ARB_framebuffer_object")))
{
// It doesn't make sense to continue working here, because we're not
// able to display anything.
DEBUG_DISPLAY_FATAL_ERROR(
L"Your graphics card doesn't appear to be fully compatible with OpenGL shaders."
L" The game does not support pre-shader graphics cards."
L" You are advised to try installing newer drivers and/or upgrade your graphics card."
L" For more information, please see http://www.wildfiregames.com/forum/index.php?showtopic=16734"
);
}
device->m_ARB = arb;
device->m_Name = GetNameImpl();
device->m_Version = GetVersionImpl();
device->m_DriverInformation = GetDriverInformationImpl();
device->m_Extensions = GetExtensionsImpl();
// Set packing parameters for uploading and downloading data.
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glEnable(GL_TEXTURE_2D);
// glEnable(GL_TEXTURE_2D) is deprecated and might trigger an error. But we
// still support pre 2.0 drivers pretending to support 2.0.
ogl_SquelchError(GL_INVALID_ENUM);
if (arb)
{
#if !CONFIG2_GLES
glEnable(GL_VERTEX_PROGRAM_ARB);
glEnable(GL_FRAGMENT_PROGRAM_ARB);
#endif
}
// Some drivers might invalidate an incorrect surface which leads to artifacts.
bool enableFramebufferInvalidating = false;
CFG_GET_VAL("renderer.backend.gl.enableframebufferinvalidating", enableFramebufferInvalidating);
if (enableFramebufferInvalidating)
{
#if CONFIG2_GLES
device->m_UseFramebufferInvalidating = ogl_HaveExtension("GL_EXT_discard_framebuffer");
#else
device->m_UseFramebufferInvalidating = !arb && ogl_HaveExtension("GL_ARB_invalidate_subdata");
#endif
}
Capabilities& capabilities = device->m_Capabilities;
capabilities.ARBShaders = !ogl_HaveExtensions(0, "GL_ARB_vertex_program", "GL_ARB_fragment_program", nullptr);
if (capabilities.ARBShaders)
capabilities.ARBShadersShadow = ogl_HaveExtension("GL_ARB_fragment_program_shadow");
capabilities.computeShaders = ogl_HaveVersion(4, 3) || ogl_HaveExtension("GL_ARB_compute_shader");
#if CONFIG2_GLES
// Some GLES implementations have GL_EXT_texture_compression_dxt1
// but that only supports DXT1 so we can't use it.
capabilities.S3TC = ogl_HaveExtensions(0, "GL_EXT_texture_compression_s3tc", nullptr) == 0;
#else
// Note: we don't bother checking for GL_S3_s3tc - it is incompatible
// and irrelevant (was never widespread).
capabilities.S3TC = ogl_HaveExtensions(0, "GL_ARB_texture_compression", "GL_EXT_texture_compression_s3tc", nullptr) == 0;
#endif
#if CONFIG2_GLES
capabilities.multisampling = false;
capabilities.maxSampleCount = 1;
#else
capabilities.multisampling =
ogl_HaveVersion(3, 3) &&
ogl_HaveExtension("GL_ARB_multisample") &&
ogl_HaveExtension("GL_ARB_texture_multisample");
if (capabilities.multisampling)
{
// By default GL_MULTISAMPLE should be enabled, but enable it for buggy drivers.
glEnable(GL_MULTISAMPLE);
GLint maxSamples = 1;
glGetIntegerv(GL_MAX_SAMPLES, &maxSamples);
capabilities.maxSampleCount = maxSamples;
}
#endif
capabilities.anisotropicFiltering = ogl_HaveExtension("GL_EXT_texture_filter_anisotropic");
if (capabilities.anisotropicFiltering)
{
GLfloat maxAnisotropy = 1.0f;
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &maxAnisotropy);
capabilities.maxAnisotropy = maxAnisotropy;
}
GLint maxTextureSize = 1024;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
capabilities.maxTextureSize = maxTextureSize;
#if CONFIG2_GLES
const bool isDebugInCore = ogl_HaveVersion(3, 2);
#else
const bool isDebugInCore = ogl_HaveVersion(4, 3);
#endif
const bool hasDebug = isDebugInCore || ogl_HaveExtension("GL_KHR_debug");
if (hasDebug)
{
#ifdef NDEBUG
bool enableDebugMessages = false;
CFG_GET_VAL("renderer.backend.debugmessages", enableDebugMessages);
capabilities.debugLabels = false;
CFG_GET_VAL("renderer.backend.debuglabels", capabilities.debugLabels);
capabilities.debugScopedLabels = false;
CFG_GET_VAL("renderer.backend.debugscopedlabels", capabilities.debugScopedLabels);
#else
const bool enableDebugMessages = true;
capabilities.debugLabels = true;
capabilities.debugScopedLabels = true;
#endif
if (enableDebugMessages)
{
glEnable(GL_DEBUG_OUTPUT);
#if !CONFIG2_GLES
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
#else
#warning GLES without GL_DEBUG_OUTPUT_SYNCHRONOUS might call the callback from different threads which might be unsafe.
#endif
glDebugMessageCallback(OnDebugMessage, nullptr);
// Filter out our own debug group messages
const GLuint id = 0x0AD;
glDebugMessageControl(
GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_PUSH_GROUP, GL_DONT_CARE, 1, &id, GL_FALSE);
glDebugMessageControl(
GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_POP_GROUP, GL_DONT_CARE, 1, &id, GL_FALSE);
}
}
#if CONFIG2_GLES
capabilities.instancing = false;
#else
capabilities.instancing =
!device->m_ARB &&
(ogl_HaveVersion(3, 3) ||
(ogl_HaveExtension("GL_ARB_draw_instanced") &&
ogl_HaveExtension("GL_ARB_instanced_arrays")));
#endif
return device;
}
CDevice::CDevice() = default;
CDevice::~CDevice()
{
if (m_Context)
SDL_GL_DeleteContext(m_Context);
}
void CDevice::Report(const ScriptRequest& rq, JS::HandleValue settings)
{
const char* errstr = "(error)";
Script::SetProperty(rq, settings, "name", m_ARB ? "glarb" : "gl");
#define INTEGER(id) do { \
GLint i = -1; \
glGetIntegerv(GL_##id, &i); \
if (ogl_SquelchError(GL_INVALID_ENUM)) \
Script::SetProperty(rq, settings, "GL_" #id, errstr); \
else \
Script::SetProperty(rq, settings, "GL_" #id, i); \
} while (false)
#define INTEGER2(id) do { \
GLint i[2] = { -1, -1 }; \
glGetIntegerv(GL_##id, i); \
if (ogl_SquelchError(GL_INVALID_ENUM)) { \
Script::SetProperty(rq, settings, "GL_" #id "[0]", errstr); \
Script::SetProperty(rq, settings, "GL_" #id "[1]", errstr); \
} else { \
Script::SetProperty(rq, settings, "GL_" #id "[0]", i[0]); \
Script::SetProperty(rq, settings, "GL_" #id "[1]", i[1]); \
} \
} while (false)
#define FLOAT(id) do { \
GLfloat f = std::numeric_limits<GLfloat>::quiet_NaN(); \
glGetFloatv(GL_##id, &f); \
if (ogl_SquelchError(GL_INVALID_ENUM)) \
Script::SetProperty(rq, settings, "GL_" #id, errstr); \
else \
Script::SetProperty(rq, settings, "GL_" #id, f); \
} while (false)
#define FLOAT2(id) do { \
GLfloat f[2] = { std::numeric_limits<GLfloat>::quiet_NaN(), std::numeric_limits<GLfloat>::quiet_NaN() }; \
glGetFloatv(GL_##id, f); \
if (ogl_SquelchError(GL_INVALID_ENUM)) { \
Script::SetProperty(rq, settings, "GL_" #id "[0]", errstr); \
Script::SetProperty(rq, settings, "GL_" #id "[1]", errstr); \
} else { \
Script::SetProperty(rq, settings, "GL_" #id "[0]", f[0]); \
Script::SetProperty(rq, settings, "GL_" #id "[1]", f[1]); \
} \
} while (false)
#define STRING(id) do { \
const char* c = (const char*)glGetString(GL_##id); \
if (!c) c = ""; \
if (ogl_SquelchError(GL_INVALID_ENUM)) c = errstr; \
Script::SetProperty(rq, settings, "GL_" #id, std::string(c)); \
} while (false)
#define QUERY(target, pname) do { \
GLint i = -1; \
glGetQueryivARB(GL_##target, GL_##pname, &i); \
if (ogl_SquelchError(GL_INVALID_ENUM)) \
Script::SetProperty(rq, settings, "GL_" #target ".GL_" #pname, errstr); \
else \
Script::SetProperty(rq, settings, "GL_" #target ".GL_" #pname, i); \
} while (false)
#define VERTEXPROGRAM(id) do { \
GLint i = -1; \
glGetProgramivARB(GL_VERTEX_PROGRAM_ARB, GL_##id, &i); \
if (ogl_SquelchError(GL_INVALID_ENUM)) \
Script::SetProperty(rq, settings, "GL_VERTEX_PROGRAM_ARB.GL_" #id, errstr); \
else \
Script::SetProperty(rq, settings, "GL_VERTEX_PROGRAM_ARB.GL_" #id, i); \
} while (false)
#define FRAGMENTPROGRAM(id) do { \
GLint i = -1; \
glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_##id, &i); \
if (ogl_SquelchError(GL_INVALID_ENUM)) \
Script::SetProperty(rq, settings, "GL_FRAGMENT_PROGRAM_ARB.GL_" #id, errstr); \
else \
Script::SetProperty(rq, settings, "GL_FRAGMENT_PROGRAM_ARB.GL_" #id, i); \
} while (false)
#define BOOL(id) INTEGER(id)
ogl_WarnIfError();
// Core OpenGL 1.3:
// (We don't bother checking extension strings for anything older than 1.3;
// it'll just produce harmless warnings)
STRING(VERSION);
STRING(VENDOR);
STRING(RENDERER);
STRING(EXTENSIONS);
#if !CONFIG2_GLES
INTEGER(MAX_CLIP_PLANES);
#endif
INTEGER(SUBPIXEL_BITS);
#if !CONFIG2_GLES
INTEGER(MAX_3D_TEXTURE_SIZE);
#endif
INTEGER(MAX_TEXTURE_SIZE);
INTEGER(MAX_CUBE_MAP_TEXTURE_SIZE);
INTEGER2(MAX_VIEWPORT_DIMS);
#if !CONFIG2_GLES
BOOL(RGBA_MODE);
BOOL(INDEX_MODE);
BOOL(DOUBLEBUFFER);
BOOL(STEREO);
#endif
FLOAT2(ALIASED_POINT_SIZE_RANGE);
FLOAT2(ALIASED_LINE_WIDTH_RANGE);
#if !CONFIG2_GLES
INTEGER(MAX_ELEMENTS_INDICES);
INTEGER(MAX_ELEMENTS_VERTICES);
INTEGER(MAX_TEXTURE_UNITS);
#endif
INTEGER(SAMPLE_BUFFERS);
INTEGER(SAMPLES);
// TODO: compressed texture formats
INTEGER(RED_BITS);
INTEGER(GREEN_BITS);
INTEGER(BLUE_BITS);
INTEGER(ALPHA_BITS);
#if !CONFIG2_GLES
INTEGER(INDEX_BITS);
#endif
INTEGER(DEPTH_BITS);
INTEGER(STENCIL_BITS);
#if !CONFIG2_GLES
// Core OpenGL 2.0 (treated as extensions):
if (ogl_HaveExtension("GL_EXT_texture_lod_bias"))
{
FLOAT(MAX_TEXTURE_LOD_BIAS_EXT);
}
if (ogl_HaveExtension("GL_ARB_occlusion_query"))
{
QUERY(SAMPLES_PASSED, QUERY_COUNTER_BITS);
}
if (ogl_HaveExtension("GL_ARB_shading_language_100"))
{
STRING(SHADING_LANGUAGE_VERSION_ARB);
}
if (ogl_HaveExtension("GL_ARB_vertex_shader"))
{
INTEGER(MAX_VERTEX_ATTRIBS_ARB);
INTEGER(MAX_VERTEX_UNIFORM_COMPONENTS_ARB);
INTEGER(MAX_VARYING_FLOATS_ARB);
INTEGER(MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB);
INTEGER(MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB);
}
if (ogl_HaveExtension("GL_ARB_fragment_shader"))
{
INTEGER(MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB);
}
if (ogl_HaveExtension("GL_ARB_vertex_shader") || ogl_HaveExtension("GL_ARB_fragment_shader") ||
ogl_HaveExtension("GL_ARB_vertex_program") || ogl_HaveExtension("GL_ARB_fragment_program"))
{
INTEGER(MAX_TEXTURE_IMAGE_UNITS_ARB);
INTEGER(MAX_TEXTURE_COORDS_ARB);
}
if (ogl_HaveExtension("GL_ARB_draw_buffers"))
{
INTEGER(MAX_DRAW_BUFFERS_ARB);
}
// Core OpenGL 3.0:
if (ogl_HaveExtension("GL_EXT_gpu_shader4"))
{
INTEGER(MIN_PROGRAM_TEXEL_OFFSET_EXT); // no _EXT version of these in glext.h
INTEGER(MAX_PROGRAM_TEXEL_OFFSET_EXT);
}
if (ogl_HaveExtension("GL_EXT_framebuffer_object"))
{
INTEGER(MAX_COLOR_ATTACHMENTS_EXT);
INTEGER(MAX_RENDERBUFFER_SIZE_EXT);
}
if (ogl_HaveExtension("GL_EXT_framebuffer_multisample"))
{
INTEGER(MAX_SAMPLES_EXT);
}
if (ogl_HaveExtension("GL_EXT_texture_array"))
{
INTEGER(MAX_ARRAY_TEXTURE_LAYERS_EXT);
}
if (ogl_HaveExtension("GL_EXT_transform_feedback"))
{
INTEGER(MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT);
INTEGER(MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT);
INTEGER(MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT);
}
// Other interesting extensions:
if (ogl_HaveExtension("GL_EXT_timer_query") || ogl_HaveExtension("GL_ARB_timer_query"))
{
QUERY(TIME_ELAPSED, QUERY_COUNTER_BITS);
}
if (ogl_HaveExtension("GL_ARB_timer_query"))
{
QUERY(TIMESTAMP, QUERY_COUNTER_BITS);
}
if (ogl_HaveExtension("GL_EXT_texture_filter_anisotropic"))
{
FLOAT(MAX_TEXTURE_MAX_ANISOTROPY_EXT);
}
if (ogl_HaveExtension("GL_ARB_texture_rectangle"))
{
INTEGER(MAX_RECTANGLE_TEXTURE_SIZE_ARB);
}
if (m_ARB)
{
if (ogl_HaveExtension("GL_ARB_vertex_program") || ogl_HaveExtension("GL_ARB_fragment_program"))
{
INTEGER(MAX_PROGRAM_MATRICES_ARB);
INTEGER(MAX_PROGRAM_MATRIX_STACK_DEPTH_ARB);
}
if (ogl_HaveExtension("GL_ARB_vertex_program"))
{
VERTEXPROGRAM(MAX_PROGRAM_ENV_PARAMETERS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_LOCAL_PARAMETERS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_INSTRUCTIONS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_TEMPORARIES_ARB);
VERTEXPROGRAM(MAX_PROGRAM_PARAMETERS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_ATTRIBS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_ADDRESS_REGISTERS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_NATIVE_TEMPORARIES_ARB);
VERTEXPROGRAM(MAX_PROGRAM_NATIVE_PARAMETERS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_NATIVE_ATTRIBS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB);
if (ogl_HaveExtension("GL_ARB_fragment_program"))
{
// The spec seems to say these should be supported, but
// Mesa complains about them so let's not bother
/*
VERTEXPROGRAM(MAX_PROGRAM_ALU_INSTRUCTIONS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_TEX_INSTRUCTIONS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_TEX_INDIRECTIONS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB);
VERTEXPROGRAM(MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB);
*/
}
}
if (ogl_HaveExtension("GL_ARB_fragment_program"))
{
FRAGMENTPROGRAM(MAX_PROGRAM_ENV_PARAMETERS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_LOCAL_PARAMETERS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_INSTRUCTIONS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_ALU_INSTRUCTIONS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_TEX_INSTRUCTIONS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_TEX_INDIRECTIONS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_TEMPORARIES_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_PARAMETERS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_ATTRIBS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_NATIVE_TEMPORARIES_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_NATIVE_PARAMETERS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_NATIVE_ATTRIBS_ARB);
if (ogl_HaveExtension("GL_ARB_vertex_program"))
{
// The spec seems to say these should be supported, but
// Intel drivers on Windows complain about them so let's not bother
/*
FRAGMENTPROGRAM(MAX_PROGRAM_ADDRESS_REGISTERS_ARB);
FRAGMENTPROGRAM(MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB);
*/
}
}
}
if (ogl_HaveExtension("GL_ARB_geometry_shader4"))
{
INTEGER(MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_ARB);
INTEGER(MAX_GEOMETRY_OUTPUT_VERTICES_ARB);
INTEGER(MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_ARB);
INTEGER(MAX_GEOMETRY_UNIFORM_COMPONENTS_ARB);
INTEGER(MAX_GEOMETRY_VARYING_COMPONENTS_ARB);
INTEGER(MAX_VERTEX_VARYING_COMPONENTS_ARB);
}
#else // CONFIG2_GLES
// Core OpenGL ES 2.0:
STRING(SHADING_LANGUAGE_VERSION);
INTEGER(MAX_VERTEX_ATTRIBS);
INTEGER(MAX_VERTEX_UNIFORM_VECTORS);
INTEGER(MAX_VARYING_VECTORS);
INTEGER(MAX_COMBINED_TEXTURE_IMAGE_UNITS);
INTEGER(MAX_VERTEX_TEXTURE_IMAGE_UNITS);
INTEGER(MAX_FRAGMENT_UNIFORM_VECTORS);
INTEGER(MAX_TEXTURE_IMAGE_UNITS);
INTEGER(MAX_RENDERBUFFER_SIZE);
#endif // CONFIG2_GLES
// TODO: Support OpenGL platforms which don't use GLX as well.
#if defined(SDL_VIDEO_DRIVER_X11) && !CONFIG2_GLES
#define GLXQCR_INTEGER(id) do { \
unsigned int i = UINT_MAX; \
if (glXQueryCurrentRendererIntegerMESA(id, &i)) \
Script::SetProperty(rq, settings, #id, i); \
} while (false)
#define GLXQCR_INTEGER2(id) do { \
unsigned int i[2] = { UINT_MAX, UINT_MAX }; \
if (glXQueryCurrentRendererIntegerMESA(id, i)) { \
Script::SetProperty(rq, settings, #id "[0]", i[0]); \
Script::SetProperty(rq, settings, #id "[1]", i[1]); \
} \
} while (false)
#define GLXQCR_INTEGER3(id) do { \
unsigned int i[3] = { UINT_MAX, UINT_MAX, UINT_MAX }; \
if (glXQueryCurrentRendererIntegerMESA(id, i)) { \
Script::SetProperty(rq, settings, #id "[0]", i[0]); \
Script::SetProperty(rq, settings, #id "[1]", i[1]); \
Script::SetProperty(rq, settings, #id "[2]", i[2]); \
} \
} while (false)
#define GLXQCR_STRING(id) do { \
const char* str = glXQueryCurrentRendererStringMESA(id); \
if (str) \
Script::SetProperty(rq, settings, #id ".string", str); \
} while (false)
SDL_SysWMinfo wminfo;
SDL_VERSION(&wminfo.version);
const int ret = SDL_GetWindowWMInfo(m_Window, &wminfo);
if (ret && wminfo.subsystem == SDL_SYSWM_X11)
{
Display* dpy = wminfo.info.x11.display;
int scrnum = DefaultScreen(dpy);
const char* glxexts = glXQueryExtensionsString(dpy, scrnum);
Script::SetProperty(rq, settings, "glx_extensions", glxexts);
if (strstr(glxexts, "GLX_MESA_query_renderer") && glXQueryCurrentRendererIntegerMESA && glXQueryCurrentRendererStringMESA)
{
GLXQCR_INTEGER(GLX_RENDERER_VENDOR_ID_MESA);
GLXQCR_INTEGER(GLX_RENDERER_DEVICE_ID_MESA);
GLXQCR_INTEGER3(GLX_RENDERER_VERSION_MESA);
GLXQCR_INTEGER(GLX_RENDERER_ACCELERATED_MESA);
GLXQCR_INTEGER(GLX_RENDERER_VIDEO_MEMORY_MESA);
GLXQCR_INTEGER(GLX_RENDERER_UNIFIED_MEMORY_ARCHITECTURE_MESA);
GLXQCR_INTEGER(GLX_RENDERER_PREFERRED_PROFILE_MESA);
GLXQCR_INTEGER2(GLX_RENDERER_OPENGL_CORE_PROFILE_VERSION_MESA);
GLXQCR_INTEGER2(GLX_RENDERER_OPENGL_COMPATIBILITY_PROFILE_VERSION_MESA);
GLXQCR_INTEGER2(GLX_RENDERER_OPENGL_ES_PROFILE_VERSION_MESA);
GLXQCR_INTEGER2(GLX_RENDERER_OPENGL_ES2_PROFILE_VERSION_MESA);
GLXQCR_STRING(GLX_RENDERER_VENDOR_ID_MESA);
GLXQCR_STRING(GLX_RENDERER_DEVICE_ID_MESA);
}
}
#endif // SDL_VIDEO_DRIVER_X11
}
std::unique_ptr<IDeviceCommandContext> CDevice::CreateCommandContext()
{
std::unique_ptr<CDeviceCommandContext> commandContet = CDeviceCommandContext::Create(this);
m_ActiveCommandContext = commandContet.get();
return commandContet;
}
std::unique_ptr<IGraphicsPipelineState> CDevice::CreateGraphicsPipelineState(
const SGraphicsPipelineStateDesc& pipelineStateDesc)
{
return CGraphicsPipelineState::Create(this, pipelineStateDesc);
}
std::unique_ptr<IVertexInputLayout> CDevice::CreateVertexInputLayout(
const PS::span<const SVertexAttributeFormat> attributes)
{
return std::make_unique<CVertexInputLayout>(this, attributes);
}
std::unique_ptr<ITexture> CDevice::CreateTexture(
const char* name, const ITexture::Type type, const uint32_t usage,
const Format format, const uint32_t width, const uint32_t height,
const Sampler::Desc& defaultSamplerDesc, const uint32_t MIPLevelCount, const uint32_t sampleCount)
{
return CTexture::Create(this, name, type, usage,
format, width, height, defaultSamplerDesc, MIPLevelCount, sampleCount);
}
std::unique_ptr<ITexture> CDevice::CreateTexture2D(
const char* name, const uint32_t usage,
const Format format, const uint32_t width, const uint32_t height,
const Sampler::Desc& defaultSamplerDesc, const uint32_t MIPLevelCount, const uint32_t sampleCount)
{
return CreateTexture(name, CTexture::Type::TEXTURE_2D, usage,
format, width, height, defaultSamplerDesc, MIPLevelCount, sampleCount);
}
std::unique_ptr<IFramebuffer> CDevice::CreateFramebuffer(
const char* name, SColorAttachment* colorAttachment,
SDepthStencilAttachment* depthStencilAttachment)
{
return CFramebuffer::Create(
this, name, colorAttachment, depthStencilAttachment);
}
std::unique_ptr<IBuffer> CDevice::CreateBuffer(
const char* name, const IBuffer::Type type, const uint32_t size, const bool dynamic)
{
return CBuffer::Create(this, name, type, size, dynamic);
}
std::unique_ptr<IShaderProgram> CDevice::CreateShaderProgram(
const CStr& name, const CShaderDefines& defines)
{
return CShaderProgram::Create(this, name, defines);
}
bool CDevice::AcquireNextBackbuffer()
{
ENSURE(!m_BackbufferAcquired);
m_BackbufferAcquired = true;
return true;
}
size_t CDevice::BackbufferKeyHash::operator()(const BackbufferKey& key) const
{
size_t seed = 0;
hash_combine(seed, std::get<0>(key));
hash_combine(seed, std::get<1>(key));
hash_combine(seed, std::get<2>(key));
hash_combine(seed, std::get<3>(key));
return seed;
}
IFramebuffer* CDevice::GetCurrentBackbuffer(
const AttachmentLoadOp colorAttachmentLoadOp,
const AttachmentStoreOp colorAttachmentStoreOp,
const AttachmentLoadOp depthStencilAttachmentLoadOp,
const AttachmentStoreOp depthStencilAttachmentStoreOp)
{
const BackbufferKey key{
colorAttachmentLoadOp, colorAttachmentStoreOp,
depthStencilAttachmentLoadOp, depthStencilAttachmentStoreOp};
auto it = m_Backbuffers.find(key);
if (it == m_Backbuffers.end())
{
it = m_Backbuffers.emplace(key, CFramebuffer::CreateBackbuffer(
this, m_SurfaceDrawableWidth, m_SurfaceDrawableHeight,
colorAttachmentLoadOp, colorAttachmentStoreOp,
depthStencilAttachmentLoadOp, depthStencilAttachmentStoreOp)).first;
}
return it->second.get();
}
void CDevice::Present()
{
ENSURE(m_BackbufferAcquired);
m_BackbufferAcquired = false;
if (m_Window)
{
PROFILE3("swap buffers");
SDL_GL_SwapWindow(m_Window);
ogl_WarnIfError();
}
bool checkGLErrorAfterSwap = false;
CFG_GET_VAL("gl.checkerrorafterswap", checkGLErrorAfterSwap);
#if defined(NDEBUG)
if (!checkGLErrorAfterSwap)
return;
#endif
PROFILE3("error check");
// We have to check GL errors after SwapBuffer to avoid possible
// synchronizations during rendering.
if (GLenum err = glGetError())
ONCE(LOGERROR("GL error %s (0x%04x) occurred", ogl_GetErrorName(err), err));
}
void CDevice::OnWindowResize(const uint32_t width, const uint32_t height)
{
ENSURE(!m_BackbufferAcquired);
m_Backbuffers.clear();
m_SurfaceDrawableWidth = width;
m_SurfaceDrawableHeight = height;
}
bool CDevice::IsTextureFormatSupported(const Format format) const
{
bool supported = false;
switch (format)
{
case Format::UNDEFINED:
break;
case Format::R8G8B8_UNORM: FALLTHROUGH;
case Format::R8G8B8A8_UNORM: FALLTHROUGH;
case Format::A8_UNORM: FALLTHROUGH;
case Format::L8_UNORM:
supported = true;
break;
case Format::R32_SFLOAT: FALLTHROUGH;
case Format::R32G32_SFLOAT: FALLTHROUGH;
case Format::R32G32B32_SFLOAT: FALLTHROUGH;
case Format::R32G32B32A32_SFLOAT:
break;
case Format::D16_UNORM: FALLTHROUGH;
case Format::D24_UNORM: FALLTHROUGH;
case Format::D32_SFLOAT:
supported = true;
break;
case Format::D24_UNORM_S8_UINT:
#if !CONFIG2_GLES
supported = true;
#endif
break;
case Format::D32_SFLOAT_S8_UINT:
break;
case Format::BC1_RGB_UNORM: FALLTHROUGH;
case Format::BC1_RGBA_UNORM: FALLTHROUGH;
case Format::BC2_UNORM: FALLTHROUGH;
case Format::BC3_UNORM:
supported = m_Capabilities.S3TC;
break;
default:
break;
}
return supported;
}
bool CDevice::IsFramebufferFormatSupported(const Format format) const
{
bool supported = false;
switch (format)
{
case Format::UNDEFINED:
break;
#if !CONFIG2_GLES
case Format::R8_UNORM:
supported = ogl_HaveVersion(3, 0);
break;
#endif
case Format::R8G8B8A8_UNORM:
supported = true;
break;
default:
break;
}
return supported;
}
Format CDevice::GetPreferredDepthStencilFormat(
const uint32_t UNUSED(usage), const bool depth, const bool stencil) const
{
ENSURE(depth || stencil);
if (stencil)
#if CONFIG2_GLES
return Format::UNDEFINED;
#else
return Format::D24_UNORM_S8_UINT;
#endif
else
return Format::D24_UNORM;
}
std::unique_ptr<IDevice> CreateDevice(SDL_Window* window, const bool arb)
{
return GL::CDevice::Create(window, arb);
}
} // namespace GL
} // namespace Backend
} // namespace Renderer