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pcsx2/plugins/GSdx/GLLoader.cpp

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/* * Copyright (C) 2011-2014 Gregory hainaut
* Copyright (C) 2007-2009 Gabest
*
* This Program 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, or (at your option)
* any later version.
*
* This Program 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "stdafx.h"
#include "GLLoader.h"
#include "GSdx.h"
#ifndef ENABLE_GLES
PFNGLACTIVETEXTUREPROC gl_ActiveTexture = NULL;
PFNGLBLENDCOLORPROC gl_BlendColor = NULL;
PFNGLATTACHSHADERPROC gl_AttachShader = NULL;
PFNGLBINDBUFFERPROC gl_BindBuffer = NULL;
PFNGLBINDBUFFERBASEPROC gl_BindBufferBase = NULL;
PFNGLBINDFRAMEBUFFERPROC gl_BindFramebuffer = NULL;
PFNGLBINDSAMPLERPROC gl_BindSampler = NULL;
PFNGLBINDVERTEXARRAYPROC gl_BindVertexArray = NULL;
PFNGLBLENDEQUATIONSEPARATEIARBPROC gl_BlendEquationSeparateiARB = NULL;
PFNGLBLENDFUNCSEPARATEIARBPROC gl_BlendFuncSeparateiARB = NULL;
PFNGLBLITFRAMEBUFFERPROC gl_BlitFramebuffer = NULL;
PFNGLBUFFERDATAPROC gl_BufferData = NULL;
PFNGLCHECKFRAMEBUFFERSTATUSPROC gl_CheckFramebufferStatus = NULL;
PFNGLCLEARBUFFERFVPROC gl_ClearBufferfv = NULL;
PFNGLCLEARBUFFERIVPROC gl_ClearBufferiv = NULL;
PFNGLCLEARBUFFERUIVPROC gl_ClearBufferuiv = NULL;
PFNGLCOLORMASKIPROC gl_ColorMaski = NULL;
PFNGLCOMPILESHADERPROC gl_CompileShader = NULL;
PFNGLCREATEPROGRAMPROC gl_CreateProgram = NULL;
PFNGLCREATESHADERPROC gl_CreateShader = NULL;
PFNGLCREATESHADERPROGRAMVPROC gl_CreateShaderProgramv = NULL;
PFNGLDELETEBUFFERSPROC gl_DeleteBuffers = NULL;
PFNGLDELETEFRAMEBUFFERSPROC gl_DeleteFramebuffers = NULL;
PFNGLDELETEPROGRAMPROC gl_DeleteProgram = NULL;
PFNGLDELETESAMPLERSPROC gl_DeleteSamplers = NULL;
PFNGLDELETESHADERPROC gl_DeleteShader = NULL;
PFNGLDELETEVERTEXARRAYSPROC gl_DeleteVertexArrays = NULL;
PFNGLDETACHSHADERPROC gl_DetachShader = NULL;
PFNGLDRAWBUFFERSPROC gl_DrawBuffers = NULL;
PFNGLDRAWELEMENTSBASEVERTEXPROC gl_DrawElementsBaseVertex = NULL;
PFNGLENABLEVERTEXATTRIBARRAYPROC gl_EnableVertexAttribArray = NULL;
PFNGLFRAMEBUFFERRENDERBUFFERPROC gl_FramebufferRenderbuffer = NULL;
PFNGLFRAMEBUFFERTEXTURE2DPROC gl_FramebufferTexture2D = NULL;
PFNGLGENBUFFERSPROC gl_GenBuffers = NULL;
PFNGLGENFRAMEBUFFERSPROC gl_GenFramebuffers = NULL;
PFNGLGENSAMPLERSPROC gl_GenSamplers = NULL;
PFNGLGENVERTEXARRAYSPROC gl_GenVertexArrays = NULL;
PFNGLGETBUFFERPARAMETERIVPROC gl_GetBufferParameteriv = NULL;
PFNGLGETDEBUGMESSAGELOGARBPROC gl_GetDebugMessageLogARB = NULL;
PFNGLDEBUGMESSAGECALLBACKPROC gl_DebugMessageCallback = NULL;
PFNGLGETPROGRAMINFOLOGPROC gl_GetProgramInfoLog = NULL;
PFNGLGETPROGRAMIVPROC gl_GetProgramiv = NULL;
PFNGLGETSHADERIVPROC gl_GetShaderiv = NULL;
PFNGLGETSTRINGIPROC gl_GetStringi = NULL;
PFNGLISFRAMEBUFFERPROC gl_IsFramebuffer = NULL;
PFNGLLINKPROGRAMPROC gl_LinkProgram = NULL;
PFNGLMAPBUFFERPROC gl_MapBuffer = NULL;
PFNGLMAPBUFFERRANGEPROC gl_MapBufferRange = NULL;
PFNGLPROGRAMPARAMETERIPROC gl_ProgramParameteri = NULL;
PFNGLSAMPLERPARAMETERFPROC gl_SamplerParameterf = NULL;
PFNGLSAMPLERPARAMETERIPROC gl_SamplerParameteri = NULL;
PFNGLSHADERSOURCEPROC gl_ShaderSource = NULL;
PFNGLUNIFORM1IPROC gl_Uniform1i = NULL;
PFNGLUNMAPBUFFERPROC gl_UnmapBuffer = NULL;
PFNGLUSEPROGRAMSTAGESPROC gl_UseProgramStages = NULL;
PFNGLVERTEXATTRIBIPOINTERPROC gl_VertexAttribIPointer = NULL;
PFNGLVERTEXATTRIBPOINTERPROC gl_VertexAttribPointer = NULL;
PFNGLBUFFERSUBDATAPROC gl_BufferSubData = NULL;
PFNGLFENCESYNCPROC gl_FenceSync = NULL;
PFNGLDELETESYNCPROC gl_DeleteSync = NULL;
PFNGLCLIENTWAITSYNCPROC gl_ClientWaitSync = NULL;
PFNGLFLUSHMAPPEDBUFFERRANGEPROC gl_FlushMappedBufferRange = NULL;
// GL4.0
PFNGLUNIFORMSUBROUTINESUIVPROC gl_UniformSubroutinesuiv = NULL;
// GL4.1
PFNGLBINDPROGRAMPIPELINEPROC gl_BindProgramPipeline = NULL;
PFNGLGENPROGRAMPIPELINESPROC gl_GenProgramPipelines = NULL;
PFNGLDELETEPROGRAMPIPELINESPROC gl_DeleteProgramPipelines = NULL;
PFNGLGETPROGRAMPIPELINEIVPROC gl_GetProgramPipelineiv = NULL;
PFNGLVALIDATEPROGRAMPIPELINEPROC gl_ValidateProgramPipeline = NULL;
PFNGLGETPROGRAMPIPELINEINFOLOGPROC gl_GetProgramPipelineInfoLog = NULL;
// NO GL4.1
PFNGLUSEPROGRAMPROC gl_UseProgram = NULL;
PFNGLGETSHADERINFOLOGPROC gl_GetShaderInfoLog = NULL;
PFNGLPROGRAMUNIFORM1IPROC gl_ProgramUniform1i = NULL;
// GL4.3
PFNGLCOPYIMAGESUBDATAPROC gl_CopyImageSubData = NULL;
PFNGLINVALIDATETEXIMAGEPROC gl_InvalidateTexImage = NULL;
// GL4.2
PFNGLBINDIMAGETEXTUREPROC gl_BindImageTexture = NULL;
PFNGLMEMORYBARRIERPROC gl_MemoryBarrier = NULL;
PFNGLTEXSTORAGE2DPROC gl_TexStorage2D = NULL;
// GL4.4
PFNGLBUFFERSTORAGEPROC gl_BufferStorage = NULL;
// GL_ARB_bindless_texture (GL5?)
PFNGLGETTEXTURESAMPLERHANDLEARBPROC gl_GetTextureSamplerHandleARB = NULL;
PFNGLMAKETEXTUREHANDLERESIDENTARBPROC gl_MakeTextureHandleResidentARB = NULL;
PFNGLMAKETEXTUREHANDLENONRESIDENTARBPROC gl_MakeTextureHandleNonResidentARB = NULL;
PFNGLUNIFORMHANDLEUI64VARBPROC gl_UniformHandleui64vARB = NULL;
PFNGLPROGRAMUNIFORMHANDLEUI64VARBPROC gl_ProgramUniformHandleui64vARB = NULL;
// GL4.5
PFNGLCREATETEXTURESPROC gl_CreateTextures = NULL;
PFNGLTEXTURESTORAGE2DPROC gl_TextureStorage2D = NULL;
PFNGLTEXTURESUBIMAGE2DPROC gl_TextureSubImage2D = NULL;
PFNGLCOPYTEXTURESUBIMAGE2DPROC gl_CopyTextureSubImage2D = NULL;
PFNGLBINDTEXTUREUNITPROC gl_BindTextureUnit = NULL;
PFNGLGETTEXTUREIMAGEPROC gl_GetTextureImage = NULL;
PFNGLCREATEFRAMEBUFFERSPROC gl_CreateFramebuffers = NULL;
PFNGLCLEARNAMEDFRAMEBUFFERFVPROC gl_ClearNamedFramebufferfv = NULL;
PFNGLCLEARNAMEDFRAMEBUFFERIVPROC gl_ClearNamedFramebufferiv = NULL;
PFNGLCLEARNAMEDFRAMEBUFFERUIVPROC gl_ClearNamedFramebufferuiv = NULL;
PFNGLNAMEDFRAMEBUFFERTEXTUREPROC gl_NamedFramebufferTexture = NULL;
PFNGLNAMEDFRAMEBUFFERDRAWBUFFERSPROC gl_NamedFramebufferDrawBuffers = NULL;
PFNGLNAMEDFRAMEBUFFERREADBUFFERPROC gl_NamedFramebufferReadBuffer = NULL;
PFNGLCHECKNAMEDFRAMEBUFFERSTATUSPROC gl_CheckNamedFramebufferStatus = NULL;
PFNGLCREATEBUFFERSPROC gl_CreateBuffers = NULL;
PFNGLNAMEDBUFFERSTORAGEPROC gl_NamedBufferStorage = NULL;
PFNGLNAMEDBUFFERDATAPROC gl_NamedBufferData = NULL;
PFNGLNAMEDBUFFERSUBDATAPROC gl_NamedBufferSubData = NULL;
PFNGLMAPNAMEDBUFFERPROC gl_MapNamedBuffer = NULL;
PFNGLMAPNAMEDBUFFERRANGEPROC gl_MapNamedBufferRange = NULL;
PFNGLUNMAPNAMEDBUFFERPROC gl_UnmapNamedBuffer = NULL;
PFNGLFLUSHMAPPEDNAMEDBUFFERRANGEPROC gl_FlushMappedNamedBufferRange = NULL;
PFNGLCREATESAMPLERSPROC gl_CreateSamplers = NULL;
PFNGLCREATEPROGRAMPIPELINESPROC gl_CreateProgramPipelines = NULL;
PFNGLCLIPCONTROLPROC gl_ClipControl = NULL;
PFNGLTEXTUREBARRIERPROC gl_TextureBarrier = NULL;
#endif
namespace Emulate_DSA {
// Texture entry point
void APIENTRY BindTextureUnit(GLuint unit, GLuint texture) {
gl_ActiveTexture(GL_TEXTURE0 + unit);
glBindTexture(GL_TEXTURE_2D, texture);
}
void APIENTRY CreateTexture(GLenum target, GLsizei n, GLuint *textures) {
glGenTextures(1, textures);
}
void APIENTRY TextureStorage(GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height) {
BindTextureUnit(7, texture);
gl_TexStorage2D(GL_TEXTURE_2D, levels, internalformat, width, height);
}
void APIENTRY TextureSubImage(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels) {
BindTextureUnit(7, texture);
glTexSubImage2D(GL_TEXTURE_2D, level, xoffset, yoffset, width, height, format, type, pixels);
}
void APIENTRY CopyTextureSubImage(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height) {
BindTextureUnit(7, texture);
glCopyTexSubImage2D(GL_TEXTURE_2D, level, xoffset, yoffset, x, y, width, height);
}
void APIENTRY GetTexureImage(GLuint texture, GLint level, GLenum format, GLenum type, GLsizei bufSize, void *pixels) {
BindTextureUnit(7, texture);
glGetTexImage(GL_TEXTURE_2D, level, format, type, pixels);
}
// Framebuffer entry point
GLenum fb_target = 0;
void SetFramebufferTarget(GLenum target) {
fb_target = target;
}
void APIENTRY CreateFramebuffers(GLsizei n, GLuint *framebuffers) {
gl_GenFramebuffers(n, framebuffers);
}
void APIENTRY ClearNamedFramebufferfv(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLfloat *value) {
gl_BindFramebuffer(fb_target, framebuffer);
gl_ClearBufferfv(buffer, drawbuffer, value);
}
void APIENTRY ClearNamedFramebufferiv(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLint *value) {
gl_BindFramebuffer(fb_target, framebuffer);
gl_ClearBufferiv(buffer, drawbuffer, value);
}
void APIENTRY ClearNamedFramebufferuiv(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLuint *value) {
gl_BindFramebuffer(fb_target, framebuffer);
gl_ClearBufferuiv(buffer, drawbuffer, value);
}
void APIENTRY NamedFramebufferTexture(GLuint framebuffer, GLenum attachment, GLuint texture, GLint level) {
gl_BindFramebuffer(fb_target, framebuffer);
gl_FramebufferTexture2D(fb_target, attachment, GL_TEXTURE_2D, texture, level);
}
void APIENTRY NamedFramebufferDrawBuffers(GLuint framebuffer, GLsizei n, const GLenum *bufs) {
gl_BindFramebuffer(fb_target, framebuffer);
gl_DrawBuffers(n, bufs);
}
void APIENTRY NamedFramebufferReadBuffer(GLuint framebuffer, GLenum src) {
gl_BindFramebuffer(fb_target, framebuffer);
glReadBuffer(src);
}
GLenum APIENTRY CheckNamedFramebufferStatus(GLuint framebuffer, GLenum target) {
gl_BindFramebuffer(fb_target, framebuffer);
return gl_CheckFramebufferStatus(fb_target);
}
// Buffer entry point
GLenum buffer_target = 0;
void SetBufferTarget(GLenum target) {
buffer_target = target;
}
void APIENTRY CreateBuffers(GLsizei n, GLuint *buffers) {
gl_GenBuffers(1, buffers);
}
void APIENTRY NamedBufferStorage(GLuint buffer, GLsizei size, const void *data, GLbitfield flags) {
gl_BindBuffer(buffer_target, buffer);
gl_BufferStorage(buffer_target, size, data, flags);
}
void APIENTRY NamedBufferData(GLuint buffer, GLsizei size, const void *data, GLenum usage) {
gl_BindBuffer(buffer_target, buffer);
gl_BufferData(buffer_target, size, data, usage);
}
void APIENTRY NamedBufferSubData(GLuint buffer, GLintptr offset, GLsizei size, const void *data) {
gl_BindBuffer(buffer_target, buffer);
gl_BufferSubData(buffer_target, offset, size, data);
}
void *APIENTRY MapNamedBuffer(GLuint buffer, GLenum access) {
gl_BindBuffer(buffer_target, buffer);
return gl_MapBuffer(buffer_target, access);
}
void *APIENTRY MapNamedBufferRange(GLuint buffer, GLintptr offset, GLsizei length, GLbitfield access) {
gl_BindBuffer(buffer_target, buffer);
return gl_MapBufferRange(buffer_target, offset, length, access);
}
GLboolean APIENTRY UnmapNamedBuffer(GLuint buffer) {
gl_BindBuffer(buffer_target, buffer);
return gl_UnmapBuffer(buffer_target);
}
void APIENTRY FlushMappedNamedBufferRange(GLuint buffer, GLintptr offset, GLsizei length) {
gl_BindBuffer(buffer_target, buffer);
gl_FlushMappedBufferRange(buffer_target, offset, length);
}
// Misc entry point
// (only purpose is to have a consistent API otherwise it is useless)
void APIENTRY CreateProgramPipelines(GLsizei n, GLuint *pipelines) {
gl_GenProgramPipelines(n, pipelines);
}
void APIENTRY CreateSamplers(GLsizei n, GLuint *samplers) {
gl_GenSamplers(n, samplers);
}
// Replace function pointer to emulate DSA behavior
void Init() {
fprintf(stderr, "DSA is not supported. Replace GL function pointer to emulate it\n");
gl_BindTextureUnit = BindTextureUnit;
gl_CreateTextures = CreateTexture;
gl_TextureStorage2D = TextureStorage;
gl_TextureSubImage2D = TextureSubImage;
gl_CopyTextureSubImage2D = CopyTextureSubImage;
gl_GetTextureImage = GetTexureImage;
gl_CreateFramebuffers = CreateFramebuffers;
gl_ClearNamedFramebufferfv = ClearNamedFramebufferfv;
gl_ClearNamedFramebufferiv = ClearNamedFramebufferiv;
gl_ClearNamedFramebufferuiv = ClearNamedFramebufferuiv;
gl_NamedFramebufferDrawBuffers = NamedFramebufferDrawBuffers;
gl_NamedFramebufferReadBuffer = NamedFramebufferReadBuffer;
gl_CheckNamedFramebufferStatus = CheckNamedFramebufferStatus;
gl_CreateBuffers = CreateBuffers;
gl_NamedBufferStorage = NamedBufferStorage;
gl_NamedBufferData = NamedBufferData;
gl_NamedBufferSubData = NamedBufferSubData;
gl_MapNamedBuffer = MapNamedBuffer;
gl_MapNamedBufferRange = MapNamedBufferRange;
gl_UnmapNamedBuffer = UnmapNamedBuffer;
gl_FlushMappedNamedBufferRange = FlushMappedNamedBufferRange;
gl_CreateProgramPipelines = CreateProgramPipelines;
gl_CreateSamplers = CreateSamplers;
}
}
namespace GLLoader {
bool fglrx_buggy_driver = false;
bool mesa_amd_buggy_driver = false;
bool nvidia_buggy_driver = false;
bool intel_buggy_driver = false;
bool in_replayer = false;
// Optional
bool found_GL_ARB_separate_shader_objects = false; // Issue with Mesa and Catalyst...
bool found_geometry_shader = true; // we require GL3.3 so geometry must be supported by default
// Note: except Apple, all drivers support explicit uniform location
bool found_GL_ARB_explicit_uniform_location = false; // need by subroutine and bindless texture
// GL4 hardware
bool found_GL_ARB_buffer_storage = false;
bool found_GL_ARB_copy_image = false; // Not sure actually maybe GL3 GPU can do it
bool found_GL_ARB_gpu_shader5 = false;
bool found_GL_ARB_shader_image_load_store = false; // GLES3.1
bool found_GL_ARB_shader_subroutine = false;
bool found_GL_ARB_bindless_texture = false; // GL5 GPU?
bool found_GL_ARB_texture_barrier = false; // Well maybe supported by older hardware I don't know
// GL4.5 for the future (dx10/dx11 compatibility)
bool found_GL_ARB_clip_control = false;
bool found_GL_ARB_direct_state_access = false;
// Mandatory for opengl ES (allow to use GL code)
bool found_GL_EXT_shader_io_blocks = false;
// Mandatory
bool found_GL_ARB_texture_storage = false;
bool found_GL_ARB_shading_language_420pack = false;
static bool status_and_override(bool& found, const std::string& name, bool mandatory = false)
{
if (!found) {
if(mandatory) {
fprintf(stderr, "ERROR: %s is NOT SUPPORTED\n", name.c_str());
return false;
} else {
fprintf(stderr, "INFO: %s is NOT SUPPORTED\n", name.c_str());
}
} else {
fprintf(stderr, "INFO: %s is available\n", name.c_str());
}
std::string opt("override_");
opt += name;
if (theApp.GetConfig(opt.c_str(), -1) != -1) {
found = !!theApp.GetConfig(opt.c_str(), -1);
fprintf(stderr, "Override %s detection (%s)\n", name.c_str(), found ? "Enabled" : "Disabled");
}
return true;
}
bool check_gl_version(uint32 major, uint32 minor) {
const GLubyte* s = glGetString(GL_VERSION);
if (s == NULL) {
fprintf(stderr, "Error: GLLoader failed to get GL version\n");
return false;
}
const char* vendor = (const char*)glGetString(GL_VENDOR);
fprintf(stderr, "Supported Opengl version: %s on GPU: %s. Vendor: %s\n", s, glGetString(GL_RENDERER), vendor);
#ifndef ENABLE_GLES
fprintf(stderr, "Note: the maximal version supported by GSdx is 3.3 (even if you driver support more)!\n");
#endif
// Name change but driver is still bad!
if (strstr(vendor, "ATI") || strstr(vendor, "Advanced Micro Devices"))
fglrx_buggy_driver = true;
if (strstr(vendor, "NVIDIA Corporation"))
nvidia_buggy_driver = true;
if (strstr(vendor, "Intel"))
intel_buggy_driver = true;
if (strstr(vendor, "X.Org")) // Note: it might actually catch nouveau too, but bug are likely to be the same anyway
mesa_amd_buggy_driver = true;
if (strstr(vendor, "VMware")) // Assume worst case because I don't know the real status
mesa_amd_buggy_driver = intel_buggy_driver = true;
GLuint dot = 0;
while (s[dot] != '\0' && s[dot] != '.') dot++;
if (dot == 0) return false;
GLuint major_gl = s[dot-1]-'0';
GLuint minor_gl = s[dot+1]-'0';
#ifndef ENABLE_GLES
if (mesa_amd_buggy_driver || intel_buggy_driver) {
fprintf(stderr, "Buggy driver detected. Geometry shaders will be disabled\n");
found_geometry_shader = false;
}
if (theApp.GetConfig("override_geometry_shader", -1) != -1) {
found_geometry_shader = !!theApp.GetConfig("override_geometry_shader", -1);
fprintf(stderr, "Override geometry shaders detection\n");
}
#else
found_geometry_shader = false;
#endif
#ifndef ENABLE_GLES
if ( (major_gl < major) || ( major_gl == major && minor_gl < minor ) ) {
fprintf(stderr, "OPENGL %d.%d is not supported\n", major, minor);
return false;
}
#endif
return true;
}
bool check_gl_supported_extension() {
int max_ext = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &max_ext);
if (gl_GetStringi && max_ext) {
for (GLint i = 0; i < max_ext; i++) {
string ext((const char*)gl_GetStringi(GL_EXTENSIONS, i));
#ifndef ENABLE_GLES
// GL4.0
if (ext.compare("GL_ARB_gpu_shader5") == 0) found_GL_ARB_gpu_shader5 = true;
// GL4.1
if (ext.compare("GL_ARB_separate_shader_objects") == 0) {
if (!fglrx_buggy_driver && !mesa_amd_buggy_driver && !intel_buggy_driver) found_GL_ARB_separate_shader_objects = true;
else fprintf(stderr, "Buggy driver detected, GL_ARB_separate_shader_objects will be disabled\n");
}
#if 0
// Erratum: on nvidia implementation, gain is very nice : 42.5 fps => 46.5 fps
//
// Strangely it doesn't provide the speed boost as expected.
// Note: only atst/colclip was replaced with subroutine for the moment. It replace 2000 program switch on
// colin mcrae 3 by 2100 uniform, but code is slower!
//
// Current hypothesis: the validation of useprogram is done in the "driver thread" whereas the extra function calls
// are done on the overloaded main threads.
// Apitrace profiling shows faster GPU draw times
if (ext.compare("GL_ARB_shader_subroutine") == 0) found_GL_ARB_shader_subroutine = true;
#endif
// GL4.2
if (ext.compare("GL_ARB_shading_language_420pack") == 0) found_GL_ARB_shading_language_420pack = true;
if (ext.compare("GL_ARB_texture_storage") == 0) found_GL_ARB_texture_storage = true;
// Only enable this extension on nvidia
// It is too costly on perf (big upscaling), code need to updated to reduce the number of draw stage
//if (nvidia_buggy_driver && ext.compare("GL_ARB_shader_image_load_store") == 0) found_GL_ARB_shader_image_load_store = true;
// GL4.3
if (ext.compare("GL_ARB_copy_image") == 0) found_GL_ARB_copy_image = true;
if (ext.compare("GL_ARB_explicit_uniform_location") == 0) found_GL_ARB_explicit_uniform_location = true;
// GL4.4
if (ext.compare("GL_ARB_buffer_storage") == 0) found_GL_ARB_buffer_storage = true;
// FIXME: I have a crash when I hit pause (debug build)
//if (ext.compare("GL_ARB_bindless_texture") == 0) found_GL_ARB_bindless_texture = true;
// GL4.5
if (ext.compare("GL_ARB_direct_state_access") == 0) found_GL_ARB_direct_state_access = true;
if (ext.compare("GL_ARB_clip_control") == 0) found_GL_ARB_clip_control = true;
if (ext.compare("GL_ARB_texture_barrier") == 0) found_GL_ARB_texture_barrier = true;
#else // ENABLE_GLES
if (ext.compare("GL_EXT_shader_io_blocks") == 0) found_GL_EXT_shader_io_blocks = true;
#endif
//fprintf(stderr, "DEBUG ext: %s\n", ext.c_str());
}
}
bool status = true;
fprintf(stderr, "\n");
#ifndef ENABLE_GLES
// GL4.0
status &= status_and_override(found_GL_ARB_gpu_shader5,"GL_ARB_gpu_shader5");
// GL4.1
status &= status_and_override(found_GL_ARB_separate_shader_objects,"GL_ARB_separate_shader_objects");
status &= status_and_override(found_GL_ARB_shader_subroutine,"GL_ARB_shader_subroutine");
// GL4.2
status &= status_and_override(found_GL_ARB_shader_image_load_store,"GL_ARB_shader_image_load_store");
status &= status_and_override(found_GL_ARB_shading_language_420pack,"GL_ARB_shading_language_420pack", true);
status &= status_and_override(found_GL_ARB_texture_storage, "GL_ARB_texture_storage", true);
// GL4.3
status &= status_and_override(found_GL_ARB_explicit_uniform_location,"GL_ARB_explicit_uniform_location");
status &= status_and_override(found_GL_ARB_copy_image, "GL_ARB_copy_image");
// GL4.4
status &= status_and_override(found_GL_ARB_buffer_storage,"GL_ARB_buffer_storage");
status &= status_and_override(found_GL_ARB_bindless_texture,"GL_ARB_bindless_texture");
// GL4.5
status &= status_and_override(found_GL_ARB_clip_control, "GL_ARB_clip_control");
status &= status_and_override(found_GL_ARB_direct_state_access, "GL_ARB_direct_state_access");
status &= status_and_override(found_GL_ARB_texture_barrier, "GL_ARB_texture_barrier");
#else // ENABLE_GLES
status &= status_and_override(found_GL_EXT_shader_io_blocks, "GL_EXT_shader_io_blocks", true);
#endif
if (!found_GL_ARB_direct_state_access) {
Emulate_DSA::Init();
}
if (gl_BindTextureUnit == NULL) {
fprintf(stderr, "FATAL ERROR !!!! Failed to setup DSA function pointer!!!\n");
status = false;
}
fprintf(stderr, "\n");
return status;
}
}
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