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#define NCINE_INCLUDE_OPENGL
#include "../CommonHeaders.h"
#include "GfxCapabilities.h"
#include "../../Main.h"
#include <cstdio> // for sscanf()
#include <cstring> // for checkGLExtension()
#include <Containers/ArrayView.h>
using namespace Death::Containers;
namespace nCine
{
GfxCapabilities::GfxCapabilities()
: glMajorVersion_(0), glMinorVersion_(0), glReleaseVersion_(0)
{
for (std::int32_t i = 0; i < (std::int32_t)GLIntValues::Count; i++) {
glIntValues_[i] = 0;
}
for (std::int32_t i = 0; i < (std::int32_t)GLExtensions::Count; i++) {
glExtensions_[i] = false;
}
for (std::int32_t i = 0; i < MaxProgramBinaryFormats; i++) {
programBinaryFormats_[i] = -1;
}
Init();
}
std::int32_t GfxCapabilities::GetGLVersion(IGfxCapabilities::GLVersion version) const
{
switch (version) {
case GLVersion::Major: return glMajorVersion_;
case GLVersion::Minor: return glMinorVersion_;
case GLVersion::Release: return glReleaseVersion_;
default: return 0;
}
}
std::int32_t GfxCapabilities::GetValue(GLIntValues valueName) const
{
std::int32_t value = 0;
if (valueName >= (GLIntValues)0 && valueName < GLIntValues::Count) {
value = glIntValues_[(std::int32_t)valueName];
}
return value;
}
std::int32_t GfxCapabilities::GetArrayValue(GLArrayIntValues valueName, std::uint32_t index) const
{
std::int32_t value = 0;
if (valueName == GLArrayIntValues::PROGRAM_BINARY_FORMATS && index < std::uint32_t(glIntValues_[(std::int32_t)GLIntValues::NUM_PROGRAM_BINARY_FORMATS])) {
value = programBinaryFormats_[index];
}
return value;
}
bool GfxCapabilities::HasExtension(GLExtensions extensionName) const
{
bool extensionAvailable = false;
if (extensionName >= (GLExtensions)0 && extensionName < GLExtensions::Count) {
extensionAvailable = glExtensions_[(std::int32_t)extensionName];
}
return extensionAvailable;
}
void GfxCapabilities::Init()
{
const char* version = reinterpret_cast<const char*>(glGetString(GL_VERSION));
if (version != nullptr) {
#if defined(WITH_OPENGLES) || defined(DEATH_TARGET_EMSCRIPTEN)
# if defined(DEATH_TARGET_MSVC)
sscanf_s(version, "OpenGL ES %2d.%2d", &glMajorVersion_, &glMinorVersion_);
# else
sscanf(version, "OpenGL ES %2d.%2d", &glMajorVersion_, &glMinorVersion_);
# endif
#else
# if defined(DEATH_TARGET_MSVC)
sscanf_s(version, "%2d.%2d.%2d", &glMajorVersion_, &glMinorVersion_, &glReleaseVersion_);
# else
sscanf(version, "%2d.%2d.%2d", &glMajorVersion_, &glMinorVersion_, &glReleaseVersion_);
# endif
#endif
}
glInfoStrings_.vendor = reinterpret_cast<const char*>(glGetString(GL_VENDOR));
glInfoStrings_.renderer = reinterpret_cast<const char*>(glGetString(GL_RENDERER));
glInfoStrings_.glVersion = reinterpret_cast<const char*>(glGetString(GL_VERSION));
glInfoStrings_.glslVersion = reinterpret_cast<const char*>(glGetString(GL_SHADING_LANGUAGE_VERSION));
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &glIntValues_[(std::int32_t)GLIntValues::MAX_TEXTURE_SIZE]);
glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &glIntValues_[(std::int32_t)GLIntValues::MAX_TEXTURE_IMAGE_UNITS]);
glGetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE, &glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE]);
glGetIntegerv(GL_MAX_UNIFORM_BUFFER_BINDINGS, &glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BUFFER_BINDINGS]);
glGetIntegerv(GL_MAX_VERTEX_UNIFORM_BLOCKS, &glIntValues_[(std::int32_t)GLIntValues::MAX_VERTEX_UNIFORM_BLOCKS]);
glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_BLOCKS, &glIntValues_[(std::int32_t)GLIntValues::MAX_FRAGMENT_UNIFORM_BLOCKS]);
glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &glIntValues_[(std::int32_t)GLIntValues::UNIFORM_BUFFER_OFFSET_ALIGNMENT]);
#if !defined(DEATH_TARGET_EMSCRIPTEN) && !(defined(DEATH_TARGET_APPLE) && defined(DEATH_TARGET_ARM)) && (!defined(WITH_OPENGLES) || (defined(WITH_OPENGLES) && GL_ES_VERSION_3_1))
glGetIntegerv(GL_MAX_VERTEX_ATTRIB_STRIDE, &glIntValues_[(std::int32_t)GLIntValues::MAX_VERTEX_ATTRIB_STRIDE]);
#endif
glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &glIntValues_[(std::int32_t)GLIntValues::MAX_COLOR_ATTACHMENTS]);
// MAX_UNIFORM_BLOCK_SIZE is sometimes not reported correctly, so try to adjust it here
glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE_NORMALIZED] = glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE];
if (glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE_NORMALIZED] > 64 * 1024) {
glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE_NORMALIZED] = 64 * 1024;
} else if (glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE_NORMALIZED] <= 0) {
glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE_NORMALIZED] = 16 * 1024;
}
const char* ExtensionNames[] = {
"GL_KHR_debug", "GL_ARB_texture_storage", "GL_ARB_get_program_binary",
#if defined(WITH_OPENGLES) && !defined(DEATH_TARGET_EMSCRIPTEN) && !defined(DEATH_TARGET_SWITCH) && !defined(DEATH_TARGET_UNIX)
"GL_OES_get_program_binary",
#endif
#if defined(DEATH_TARGET_EMSCRIPTEN)
"WEBGL_compressed_texture_s3tc", "WEBGL_compressed_texture_atc", "WEBGL_compressed_texture_pvrtc", "WEBGL_compressed_texture_astc"
#else
"GL_EXT_texture_compression_s3tc", "GL_AMD_compressed_ATC_texture", "GL_IMG_texture_compression_pvrtc", "GL_KHR_texture_compression_astc_ldr"
#endif
#if defined(DEATH_TARGET_EMSCRIPTEN)
, "WEBGL_compressed_texture_etc1",
#elif defined(WITH_OPENGLES)
, "GL_OES_compressed_ETC1_RGB8_texture",
#endif
};
static_assert(std::int32_t(arraySize(ExtensionNames)) == (std::int32_t)GLExtensions::Count, "GLExtensions count mismatch");
CheckGLExtensions(ExtensionNames, glExtensions_, (std::int32_t)GLExtensions::Count);
#if defined(WITH_OPENGLES) && !defined(DEATH_TARGET_EMSCRIPTEN) && !defined(DEATH_TARGET_SWITCH) && !defined(DEATH_TARGET_UNIX)
if (HasExtension(GLExtensions::OES_GET_PROGRAM_BINARY)) {
glGetIntegerv(GL_NUM_PROGRAM_BINARY_FORMATS_OES, &glIntValues_[(std::int32_t)GLIntValues::NUM_PROGRAM_BINARY_FORMATS]);
DEATH_ASSERT(glIntValues_[(std::int32_t)GLIntValues::NUM_PROGRAM_BINARY_FORMATS] <= MaxProgramBinaryFormats);
glGetIntegerv(GL_PROGRAM_BINARY_FORMATS_OES, programBinaryFormats_);
} else
#endif
if (HasExtension(GLExtensions::ARB_GET_PROGRAM_BINARY)) {
glGetIntegerv(GL_NUM_PROGRAM_BINARY_FORMATS, &glIntValues_[(std::int32_t)GLIntValues::NUM_PROGRAM_BINARY_FORMATS]);
DEATH_ASSERT(glIntValues_[(std::int32_t)GLIntValues::NUM_PROGRAM_BINARY_FORMATS] <= MaxProgramBinaryFormats);
glGetIntegerv(GL_PROGRAM_BINARY_FORMATS, programBinaryFormats_);
}
#if defined(DEATH_TRACE)
// Log OpenGL device info
LOGI("--- OpenGL device info ---");
LOGI("Vendor: {}", glInfoStrings_.vendor);
LOGI("Renderer: {}", glInfoStrings_.renderer);
LOGI("OpenGL Version: {}", glInfoStrings_.glVersion);
LOGI("GLSL Version: {}", glInfoStrings_.glslVersion);
//LOGI("--- OpenGL device info ---");
// Capabilities
LOGI("--- OpenGL device capabilities ---");
LOGI("GL_MAX_TEXTURE_SIZE: {}", glIntValues_[(std::int32_t)GLIntValues::MAX_TEXTURE_SIZE]);
LOGI("GL_MAX_TEXTURE_IMAGE_UNITS: {}", glIntValues_[(std::int32_t)GLIntValues::MAX_TEXTURE_IMAGE_UNITS]);
if (glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE] != glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE_NORMALIZED]) {
LOGI("GL_MAX_UNIFORM_BLOCK_SIZE: {} ({})", glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE], glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE_NORMALIZED]);
} else {
LOGI("GL_MAX_UNIFORM_BLOCK_SIZE: {}", glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BLOCK_SIZE]);
}
LOGI("GL_MAX_UNIFORM_BUFFER_BINDINGS: {}", glIntValues_[(std::int32_t)GLIntValues::MAX_UNIFORM_BUFFER_BINDINGS]);
LOGI("GL_MAX_VERTEX_UNIFORM_BLOCKS: {}", glIntValues_[(std::int32_t)GLIntValues::MAX_VERTEX_UNIFORM_BLOCKS]);
LOGI("GL_MAX_FRAGMENT_UNIFORM_BLOCKS: {}", glIntValues_[(std::int32_t)GLIntValues::MAX_FRAGMENT_UNIFORM_BLOCKS]);
LOGI("GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT: {}", glIntValues_[(std::int32_t)GLIntValues::UNIFORM_BUFFER_OFFSET_ALIGNMENT]);
#if !defined(DEATH_TARGET_EMSCRIPTEN) && !(defined(DEATH_TARGET_APPLE) && defined(DEATH_TARGET_ARM)) && (!defined(WITH_OPENGLES) || (defined(WITH_OPENGLES) && GL_ES_VERSION_3_1))
LOGI("GL_MAX_VERTEX_ATTRIB_STRIDE: {}", glIntValues_[(std::int32_t)GLIntValues::MAX_VERTEX_ATTRIB_STRIDE]);
#endif
LOGI("GL_MAX_COLOR_ATTACHMENTS: {}", glIntValues_[(std::int32_t)GLIntValues::MAX_COLOR_ATTACHMENTS]);
LOGI("GL_NUM_PROGRAM_BINARY_FORMATS: {}", glIntValues_[(std::int32_t)GLIntValues::NUM_PROGRAM_BINARY_FORMATS]);
LOGI("---");
LOGI("GL_KHR_debug: {}", glExtensions_[(std::int32_t)GLExtensions::KHR_DEBUG]);
LOGI("GL_ARB_texture_storage: {}", glExtensions_[(std::int32_t)GLExtensions::ARB_TEXTURE_STORAGE]);
LOGI("GL_ARB_get_program_binary: {}", glExtensions_[(std::int32_t)GLExtensions::ARB_GET_PROGRAM_BINARY]);
#if defined(WITH_OPENGLES) && !defined(DEATH_TARGET_EMSCRIPTEN) && !defined(DEATH_TARGET_SWITCH) && !defined(DEATH_TARGET_UNIX)
LOGI("GL_OES_get_program_binary: {}", glExtensions_[(std::int32_t)GLExtensions::OES_GET_PROGRAM_BINARY]);
#endif
LOGI("GL_EXT_texture_compression_s3tc: {}", glExtensions_[(std::int32_t)GLExtensions::EXT_TEXTURE_COMPRESSION_S3TC]);
#if defined(WITH_OPENGLES) || defined(DEATH_TARGET_EMSCRIPTEN)
LOGI("GL_OES_compressed_ETC1_RGB8_texture: {}", glExtensions_[(std::int32_t)GLExtensions::OES_COMPRESSED_ETC1_RGB8_TEXTURE]);
#endif
LOGI("GL_AMD_compressed_ATC_texture: {}", glExtensions_[(std::int32_t)GLExtensions::AMD_COMPRESSED_ATC_TEXTURE]);
LOGI("GL_IMG_texture_compression_pvrtc: {}", glExtensions_[(std::int32_t)GLExtensions::IMG_TEXTURE_COMPRESSION_PVRTC]);
LOGI("GL_KHR_texture_compression_astc_ldr: {}", glExtensions_[(std::int32_t)GLExtensions::KHR_TEXTURE_COMPRESSION_ASTC_LDR]);
//LOGI("--- OpenGL device capabilities ---");
LOGI("---");
// Extensions
/*GLint numExtensions;
glGetIntegerv(GL_NUM_EXTENSIONS, &numExtensions);
LOGI("--- OpenGL extensions ---");
for (GLuint i = 0; i < static_cast<GLuint>(numExtensions); i++) {
LOGI("Extension {}: {}", i, glGetStringi(GL_EXTENSIONS, i));
}
LOGI("--- OpenGL extensions ---");*/
#endif
}
void GfxCapabilities::CheckGLExtensions(const char* extensionNames[], bool results[], std::uint32_t numExtensionsToCheck) const
{
GLint numExtensions;
glGetIntegerv(GL_NUM_EXTENSIONS, &numExtensions);
if (numExtensions <= 0) {
return;
}
for (GLuint i = 0; i < static_cast<GLuint>(numExtensions); i++) {
const char* extension = reinterpret_cast<const char*>(glGetStringi(GL_EXTENSIONS, i));
const std::size_t extLength = std::strlen(extension);
for (std::uint32_t j = 0; j < numExtensionsToCheck; j++) {
const size_t nameLength = std::strlen(extensionNames[j]);
if (!results[j] && nameLength == extLength && strncmp(extensionNames[j], extension, extLength) == 0) {
results[j] = true;
}
}
}
}
}
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