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Replaced the GLee OpenGL function loader with a modified version of GLAD (resolves issue #728.)

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--HG--
branch : minor
This commit is contained in:
Alex Szpakowski
2014-08-18 21:35:52 -03:00
parent 0c1b73e2ca
commit 5f6ee50541
12 changed files with 18236 additions and 50038 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/libraries/glad/glad.cpp
+6890
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src/libraries/glad/glad.hpp
+8896
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src/libraries/glad/gladfuncs.hpp
+2358
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src/modules/graphics/opengl/Canvas.cpp
+18 -18
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@@ -275,7 +275,7 @@ struct FramebufferStrategyPackedEXT : public FramebufferStrategy
virtual bool createMSAABuffer(int width, int height, int &samples, GLenum internalformat, GLuint &buffer)
{
if (!GLEE_EXT_framebuffer_multisample)
if (!GLAD_EXT_framebuffer_multisample)
return false;
glGenRenderbuffersEXT(1, &buffer);
@@ -406,11 +406,11 @@ static void getStrategy()
{
if (!strategy)
{
if (GLEE_VERSION_3_0 || GLEE_ARB_framebuffer_object)
if (GLAD_VERSION_3_0 || GLAD_ARB_framebuffer_object)
strategy = &strategyGL3;
else if (GLEE_EXT_framebuffer_object && GLEE_EXT_packed_depth_stencil)
else if (GLAD_EXT_framebuffer_object && GLAD_EXT_packed_depth_stencil)
strategy = &strategyPackedEXT;
else if (GLEE_EXT_framebuffer_object && strategyEXT.isSupported())
else if (GLAD_EXT_framebuffer_object && strategyEXT.isSupported())
strategy = &strategyEXT;
else
strategy = &strategyNone;
@@ -550,8 +550,8 @@ bool Canvas::loadVolatile()
}
int max_samples = 0;
if (GLEE_VERSION_3_0 || GLEE_ARB_framebuffer_object
|| GLEE_EXT_framebuffer_multisample)
if (GLAD_VERSION_3_0 || GLAD_ARB_framebuffer_object
|| GLAD_EXT_framebuffer_multisample)
{
glGetIntegerv(GL_MAX_SAMPLES, &max_samples);
}
@@ -803,7 +803,7 @@ void Canvas::clear(Color c)
// We don't need to worry about multiple FBO attachments or global clear
// color state when OpenGL 3.0+ is supported.
if (GLEE_VERSION_3_0)
if (GLAD_VERSION_3_0)
{
glClearBufferfv(GL_COLOR, 0, glcolor);
@@ -873,9 +873,9 @@ love::image::ImageData *Canvas::getImageData(love::image::Image *image)
GLubyte *pixels = new GLubyte[size];
// Our texture is attached to 'resolve_fbo' when we use MSAA.
if (msaa_samples > 1 && (GLEE_VERSION_3_0 || GLEE_ARB_framebuffer_object))
if (msaa_samples > 1 && (GLAD_VERSION_3_0 || GLAD_ARB_framebuffer_object))
glBindFramebuffer(GL_READ_FRAMEBUFFER, resolve_fbo);
else if (msaa_samples > 1 && GLEE_EXT_framebuffer_multisample)
else if (msaa_samples > 1 && GLAD_EXT_framebuffer_multisample)
glBindFramebufferEXT(GL_READ_FRAMEBUFFER, resolve_fbo);
else
strategy->bindFBO(fbo);
@@ -900,9 +900,9 @@ void Canvas::getPixel(unsigned char* pixel_rgba, int x, int y)
resolveMSAA();
// Our texture is attached to 'resolve_fbo' when we use MSAA.
if (msaa_samples > 1 && (GLEE_VERSION_3_0 || GLEE_ARB_framebuffer_object))
if (msaa_samples > 1 && (GLAD_VERSION_3_0 || GLAD_ARB_framebuffer_object))
glBindFramebuffer(GL_READ_FRAMEBUFFER, resolve_fbo);
else if (msaa_samples > 1 && GLEE_EXT_framebuffer_multisample)
else if (msaa_samples > 1 && GLAD_EXT_framebuffer_multisample)
glBindFramebufferEXT(GL_READ_FRAMEBUFFER, resolve_fbo);
else if (current != this)
strategy->bindFBO(fbo);
@@ -928,14 +928,14 @@ bool Canvas::resolveMSAA()
previous = current->fbo;
// Do the MSAA resolve by blitting the MSAA renderbuffer to the texture.
if (GLEE_VERSION_3_0 || GLEE_ARB_framebuffer_object)
if (GLAD_VERSION_3_0 || GLAD_ARB_framebuffer_object)
{
glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, resolve_fbo);
glBlitFramebuffer(0, 0, width, height, 0, 0, width, height,
GL_COLOR_BUFFER_BIT, GL_NEAREST);
}
else if (GLEE_EXT_framebuffer_multisample && GLEE_EXT_framebuffer_blit)
else if (GLAD_EXT_framebuffer_multisample && GLAD_EXT_framebuffer_blit)
{
glBindFramebufferEXT(GL_READ_FRAMEBUFFER, fbo);
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER, resolve_fbo);
@@ -1047,18 +1047,18 @@ bool Canvas::isFormatSupported(Canvas::Format format)
supported = true;
break;
case FORMAT_RGB565:
supported = GLEE_VERSION_4_2 || GLEE_ARB_ES2_compatibility;
supported = GLAD_VERSION_4_2 || GLAD_ARB_ES2_compatibility;
break;
case FORMAT_RG11B10F:
supported = GLEE_VERSION_3_0 || GLEE_EXT_packed_float;
supported = GLAD_VERSION_3_0 || GLAD_EXT_packed_float;
break;
case FORMAT_RGBA16F:
case FORMAT_RGBA32F:
supported = GLEE_VERSION_3_0 || GLEE_ARB_texture_float;
supported = GLAD_VERSION_3_0 || GLAD_ARB_texture_float;
break;
case FORMAT_SRGB:
supported = GLEE_VERSION_3_0 || ((GLEE_ARB_framebuffer_sRGB || GLEE_EXT_framebuffer_sRGB)
&& (GLEE_VERSION_2_1 || GLEE_EXT_texture_sRGB));
supported = GLAD_VERSION_3_0 || ((GLAD_ARB_framebuffer_sRGB || GLAD_EXT_framebuffer_sRGB)
&& (GLAD_VERSION_2_1 || GLAD_EXT_texture_sRGB));
break;
default:
supported = false;
src/modules/graphics/opengl/GLee.c
-25454
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src/modules/graphics/opengl/GLee.h
-24528
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src/modules/graphics/opengl/Graphics.cpp
+12 -12
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@@ -197,7 +197,7 @@ bool Graphics::setMode(int width, int height, bool &sRGB)
gl.initContext();
// Does the system meet LOVE's minimum requirements for graphics?
if (!(GLEE_VERSION_2_0 && Shader::isSupported() && Canvas::isSupported())
if (!(GLAD_VERSION_2_0 && Shader::isSupported() && Canvas::isSupported())
&& !displayedMinReqWarning)
{
love::window::Window::MessageBoxType type = love::window::Window::MESSAGEBOX_ERROR;
@@ -245,7 +245,7 @@ bool Graphics::setMode(int width, int height, bool &sRGB)
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
// Set whether drawing converts input from linear -> sRGB colorspace.
if (GLEE_VERSION_3_0 || GLEE_ARB_framebuffer_sRGB || GLEE_EXT_framebuffer_sRGB)
if (GLAD_VERSION_3_0 || GLAD_ARB_framebuffer_sRGB || GLAD_EXT_framebuffer_sRGB)
{
if (sRGB)
glEnable(GL_FRAMEBUFFER_SRGB);
@@ -259,7 +259,7 @@ bool Graphics::setMode(int width, int height, bool &sRGB)
bool enabledebug = false;
if (GLEE_VERSION_3_0)
if (GLAD_VERSION_3_0)
{
// Enable OpenGL's debug output if a debug context has been created.
GLint flags = 0;
@@ -297,7 +297,7 @@ void Graphics::unSetMode()
created = false;
}
static void APIENTRY debugCB(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei /*len*/, const GLchar *msg, GLvoid* /*usr*/)
static void APIENTRY debugCB(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei /*len*/, const GLchar *msg, const GLvoid* /*usr*/)
{
// Human-readable strings for the debug info.
const char *sourceStr = OpenGL::debugSourceString(source);
@@ -312,14 +312,14 @@ void Graphics::setDebug(bool enable)
{
// Make sure debug output is supported. The AMD ext. is a bit different
// so we don't make use of it, since AMD drivers now support KHR_debug.
if (!(GLEE_VERSION_4_3 || GLEE_KHR_debug || GLEE_ARB_debug_output))
if (!(GLAD_VERSION_4_3 || GLAD_KHR_debug || GLAD_ARB_debug_output))
return;
// Ugly hack to reduce code duplication.
if (GLEE_ARB_debug_output && !(GLEE_VERSION_4_3 || GLEE_KHR_debug))
if (GLAD_ARB_debug_output && !(GLAD_VERSION_4_3 || GLAD_KHR_debug))
{
glDebugMessageCallback = (GLEEPFNGLDEBUGMESSAGECALLBACKPROC) glDebugMessageCallbackARB;
glDebugMessageControl = (GLEEPFNGLDEBUGMESSAGECONTROLPROC) glDebugMessageControlARB;
fp_glDebugMessageCallback = (pfn_glDebugMessageCallback) fp_glDebugMessageCallbackARB;
fp_glDebugMessageControl = (pfn_glDebugMessageControl) fp_glDebugMessageControlARB;
}
if (!enable)
@@ -328,7 +328,7 @@ void Graphics::setDebug(bool enable)
glDebugMessageCallback(nullptr, nullptr);
// We can disable debug output entirely with KHR_debug.
if (GLEE_VERSION_4_3 || GLEE_KHR_debug)
if (GLAD_VERSION_4_3 || GLAD_KHR_debug)
glDisable(GL_DEBUG_OUTPUT);
return;
@@ -346,7 +346,7 @@ void Graphics::setDebug(bool enable)
glDebugMessageControl(GL_DEBUG_SOURCE_API, GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR, GL_DONT_CARE, 0, 0, GL_FALSE);
glDebugMessageControl(GL_DEBUG_SOURCE_SHADER_COMPILER, GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR, GL_DONT_CARE, 0, 0, GL_FALSE);
if (GLEE_VERSION_4_3 || GLEE_KHR_debug)
if (GLAD_VERSION_4_3 || GLAD_KHR_debug)
glEnable(GL_DEBUG_OUTPUT);
::printf("OpenGL debug output enabled (LOVE_GRAPHICS_DEBUG=1)\n");
@@ -1219,8 +1219,8 @@ double Graphics::getSystemLimit(SystemLimit limittype) const
limit = (double) gl.getMaxRenderTargets();
break;
case Graphics::LIMIT_CANVAS_MSAA:
if (GLEE_VERSION_3_0 || GLEE_ARB_framebuffer_object
|| GLEE_EXT_framebuffer_multisample)
if (GLAD_VERSION_3_0 || GLAD_ARB_framebuffer_object
|| GLAD_EXT_framebuffer_multisample)
{
GLint intlimit = 0;
glGetIntegerv(GL_MAX_SAMPLES, &intlimit);
src/modules/graphics/opengl/Image.cpp
+6 -6
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@@ -233,7 +233,7 @@ void Image::uploadImageData()
"image does not have power-of-two dimensions.");
}
if (!GLEE_VERSION_3_0 && !GLEE_ARB_framebuffer_object)
if (!GLAD_VERSION_3_0 && !GLAD_ARB_framebuffer_object)
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
}
@@ -254,7 +254,7 @@ void Image::uploadImageData()
if (flags.mipmaps)
{
if (GLEE_VERSION_3_0 || GLEE_ARB_framebuffer_object)
if (GLAD_VERSION_3_0 || GLAD_ARB_framebuffer_object)
{
// Driver bug: http://www.opengl.org/wiki/Common_Mistakes#Automatic_mipmap_generation
if (gl.getVendor() == OpenGL::VENDOR_ATI_AMD)
@@ -471,7 +471,7 @@ GLenum Image::getCompressedFormat(image::CompressedData::Format cformat) const
bool Image::hasAnisotropicFilteringSupport()
{
return GLEE_EXT_texture_filter_anisotropic;
return GLAD_EXT_texture_filter_anisotropic;
}
bool Image::hasCompressedTextureSupport(image::CompressedData::Format format)
@@ -481,12 +481,12 @@ bool Image::hasCompressedTextureSupport(image::CompressedData::Format format)
case image::CompressedData::FORMAT_DXT1:
case image::CompressedData::FORMAT_DXT3:
case image::CompressedData::FORMAT_DXT5:
return GLEE_EXT_texture_compression_s3tc;
return GLAD_EXT_texture_compression_s3tc;
case image::CompressedData::FORMAT_BC4:
case image::CompressedData::FORMAT_BC4s:
case image::CompressedData::FORMAT_BC5:
case image::CompressedData::FORMAT_BC5s:
return (GLEE_VERSION_3_0 || GLEE_ARB_texture_compression_rgtc || GLEE_EXT_texture_compression_rgtc);
return (GLAD_VERSION_3_0 || GLAD_ARB_texture_compression_rgtc || GLAD_EXT_texture_compression_rgtc);
default:
break;
}
@@ -496,7 +496,7 @@ bool Image::hasCompressedTextureSupport(image::CompressedData::Format format)
bool Image::hasSRGBSupport()
{
return GLEE_VERSION_2_1 || GLEE_EXT_texture_sRGB;
return GLAD_VERSION_2_1 || GLAD_EXT_texture_sRGB;
}
bool Image::getConstant(const char *in, FlagType &out)
src/modules/graphics/opengl/OpenGL.cpp
+12 -7
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@@ -52,16 +52,21 @@ OpenGL::OpenGL()
matrices.projection.reserve(2);
}
void OpenGL::initContext()
bool OpenGL::initContext()
{
if (contextInitialized)
return;
return true;
if (!gladLoadGL())
return false;
initOpenGLFunctions();
initVendor();
initMatrices();
contextInitialized = true;
return true;
}
void OpenGL::setupContext()
@@ -173,7 +178,7 @@ void OpenGL::initOpenGLFunctions()
void OpenGL::initMaxValues()
{
// We'll need this value to clamp anisotropy.
if (GLEE_EXT_texture_filter_anisotropic)
if (GLAD_EXT_texture_filter_anisotropic)
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &maxAnisotropy);
else
maxAnisotropy = 1.0f;
@@ -292,7 +297,7 @@ void OpenGL::drawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsize
{
Shader *shader = Shader::current;
if (GLEE_ARB_draw_instanced)
if (GLAD_ARB_draw_instanced)
glDrawArraysInstancedARB(mode, first, count, primcount);
else
{
@@ -316,7 +321,7 @@ void OpenGL::drawElementsInstanced(GLenum mode, GLsizei count, GLenum type, cons
{
Shader *shader = Shader::current;
if (GLEE_ARB_draw_instanced)
if (GLAD_ARB_draw_instanced)
glDrawElementsInstancedARB(mode, count, type, indices, primcount);
else
{
@@ -498,7 +503,7 @@ void OpenGL::setTextureFilter(graphics::Texture::Filter &f)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gmin);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gmag);
if (GLEE_EXT_texture_filter_anisotropic)
if (GLAD_EXT_texture_filter_anisotropic)
{
f.anisotropy = std::min(std::max(f.anisotropy, 1.0f), maxAnisotropy);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, f.anisotropy);
@@ -553,7 +558,7 @@ graphics::Texture::Filter OpenGL::getTextureFilter()
break;
}
if (GLEE_EXT_texture_filter_anisotropic)
if (GLAD_EXT_texture_filter_anisotropic)
glGetTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &f.anisotropy);
return f;
src/modules/graphics/opengl/OpenGL.h
+9 -3
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@@ -21,13 +21,14 @@
#ifndef LOVE_GRAPHICS_OPENGL_OPENGL_H
#define LOVE_GRAPHICS_OPENGL_OPENGL_H
#include "GLee.h"
// LOVE
#include "graphics/Color.h"
#include "graphics/Texture.h"
#include "common/Matrix.h"
// GLAD
#include "libraries/glad/gladfuncs.hpp"
// C++
#include <vector>
#include <stack>
@@ -42,6 +43,11 @@ namespace graphics
namespace opengl
{
// Awful, but the library uses the namespace in order to use the functions sanely
// with proper autocomplete in IDEs while having name mangling safety -
// no clashes with other GL libraries when linking, etc.
using namespace glad;
/**
* Thin layer between OpenGL and the rest of the program.
* Internally shadows some OpenGL context state for improved efficiency and
@@ -138,7 +144,7 @@ public:
/**
* Initializes the active OpenGL context.
**/
void initContext();
bool initContext();
/**
* Sets up some required context state based on current and default OpenGL