mirrors/SFML
1
0
Fork 0
mirror of https://github.com/SFML/SFML.git synced 2024-11-25 04:41:05 +08:00
Code Issues Packages Projects Releases Wiki Activity

Added methods to get the currently active context, query whether an OpenGL extension is available and query the actual OpenGL version of a context, made context switches during initialization of texture and shader static values unnecessary, fixed code style in loaders.

Browse Source
This commit is contained in:
binary1248 2015-08-13 18:25:43 +02:00 committed by Lukas Dürrenberger
parent b7d7ac44f3
commit 2752bbcfb0
16 changed files with 1670 additions and 725 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
examples/opengl/OpenGL.cpp
View File

@ -36,13 +36,6 @@ int main()
text.setColor(sf::Color(255, 255, 255, 170));
text.setPosition(250.f, 450.f);
// Make the window the active target for OpenGL calls
// Note: If using sf::Texture or sf::Shader with OpenGL,
// be sure to call sf::Texture::getMaximumSize() and/or
// sf::Shader::isAvailable() at least once before calling
// setActive(), as those functions will cause a context switch
window.setActive();
// Load an OpenGL texture.
// We could directly use a sf::Texture as an OpenGL texture (with its Bind() member function),
// but here we want more control on it (generate mipmaps, ...) so we create a new one from an image

3
include/SFML/Graphics/Shader.hpp
View File

@ -498,9 +498,6 @@ public:
/// the shader features. If it returns false, then
/// any attempt to use sf::Shader will fail.
///
/// Note: The first call to this function, whether by your
/// code or SFML will result in a context switch.
///
/// \return True if shaders are supported, false otherwise
///
////////////////////////////////////////////////////////////

3
include/SFML/Graphics/Texture.hpp
View File

@ -472,9 +472,6 @@ public:
/// You can expect a value of 512 pixels for low-end graphics
/// card, and up to 8192 pixels or more for newer hardware.
///
/// Note: The first call to this function, whether by your
/// code or SFML will result in a context switch.
///
/// \return Maximum size allowed for textures, in pixels
///
////////////////////////////////////////////////////////////

31
include/SFML/Window/Context.hpp
View File

@ -77,7 +77,28 @@ public:
////////////////////////////////////////////////////////////
bool setActive(bool active);
public:
////////////////////////////////////////////////////////////
/// \brief Get the settings of the context
///
/// Note that these settings may be different than the ones
/// passed to the constructor; they are indeed adjusted if the
/// original settings are not directly supported by the system.
///
/// \return Structure containing the settings
///
////////////////////////////////////////////////////////////
const ContextSettings& getSettings() const;
////////////////////////////////////////////////////////////
/// \brief Check whether a given OpenGL extension is available
///
/// \param name Name of the extension to check for
///
/// \return True if available, false if unavailable
///
////////////////////////////////////////////////////////////
static bool isExtensionAvailable(const char* name);
////////////////////////////////////////////////////////////
/// \brief Get the address of an OpenGL function
///
@ -88,6 +109,14 @@ public:
////////////////////////////////////////////////////////////
static GlFunctionPointer getFunction(const char* name);
////////////////////////////////////////////////////////////
/// \brief Get the currently active context
///
/// \return The currently active context or NULL if none is active
///
////////////////////////////////////////////////////////////
static const Context* getActiveContext();
////////////////////////////////////////////////////////////
/// \brief Construct a in-memory context
///

10
src/SFML/Graphics/GLExtensions.cpp
View File

@ -26,6 +26,7 @@
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Graphics/GLExtensions.hpp>
#include <SFML/Window/Context.hpp>
#include <SFML/System/Err.hpp>
@ -40,9 +41,16 @@ void ensureExtensionsInit()
static bool initialized = false;
if (!initialized)
{
const Context* context = Context::getActiveContext();
if (!context)
return;
sfogl_LoadFunctions();
if (!sfogl_IsVersionGEQ(1, 1))
ContextSettings settings = context->getSettings();
if ((settings.majorVersion < 1) || ((settings.majorVersion == 1) && (settings.minorVersion < 1)))
{
err() << "sfml-graphics requires support for OpenGL 1.1 or greater" << std::endl;
err() << "Ensure that hardware acceleration is enabled if available" << std::endl;

6
src/SFML/Graphics/GLExtensions.txt
View File

@ -1,10 +1,8 @@
// Created with:
// https://bitbucket.org/KhronosGroup/glloadgen
// Commit d143d66ac90d538ed06f806188714861b8e8e2f9
// lua LoadGen.lua -style=pointer_c -spec=gl -version=1.1 -indent=space -prefix=sf -extfile=GLExtensions.txt GLLoader
// lua LoadGen.lua
SGIS_texture_edge_clamp
//EXT_texture_edge_clamp
EXT_texture_edge_clamp
EXT_blend_minmax
EXT_blend_subtract
ARB_multitexture

1110
src/SFML/Graphics/GLLoader.cpp
View File

File diff suppressed because it is too large Load Diff

801
src/SFML/Graphics/GLLoader.hpp
View File

File diff suppressed because it is too large Load Diff

14
src/SFML/Graphics/Shader.cpp
View File

@ -119,6 +119,8 @@ namespace
// Create a temporary context in case the user checks
// before a GlResource is created, thus initializing
// the shared context
if (!sf::Context::getActiveContext())
{
sf::Context context;
// Make sure that extensions are initialized
@ -132,6 +134,18 @@ namespace
return available;
}
// Make sure that extensions are initialized
sf::priv::ensureExtensionsInit();
bool available = GLEXT_multitexture &&
GLEXT_shading_language_100 &&
GLEXT_shader_objects &&
GLEXT_vertex_shader &&
GLEXT_fragment_shader;
return available;
}
}

8
src/SFML/Graphics/Texture.cpp
View File

@ -58,6 +58,8 @@ namespace
// Create a temporary context in case the user queries
// the size before a GlResource is created, thus
// initializing the shared context
if (!sf::Context::getActiveContext())
{
sf::Context context;
GLint size;
@ -65,6 +67,12 @@ namespace
return static_cast<unsigned int>(size);
}
GLint size;
glCheck(glGetIntegerv(GL_MAX_TEXTURE_SIZE, &size));
return static_cast<unsigned int>(size);
}
}

108
src/SFML/Window/Context.cpp
View File

@ -27,7 +27,32 @@
////////////////////////////////////////////////////////////
#include <SFML/Window/Context.hpp>
#include <SFML/Window/GlContext.hpp>
#include <SFML/System/ThreadLocalPtr.hpp>
#include <SFML/OpenGL.hpp>
#include <algorithm>
#include <vector>
#include <string>
#if defined(SFML_SYSTEM_WINDOWS)
typedef const GLubyte* (APIENTRY *glGetStringiFuncType)(GLenum, GLuint);
#else
typedef const GLubyte* (*glGetStringiFuncType)(GLenum, GLuint);
#endif
#if !defined(GL_NUM_EXTENSIONS)
#define GL_NUM_EXTENSIONS 0x821D
#endif
namespace
{
// This per-thread variable holds the current context for each thread
sf::ThreadLocalPtr<sf::Context> currentContext(NULL);
}
namespace sf
{
@ -42,6 +67,7 @@ Context::Context()
////////////////////////////////////////////////////////////
Context::~Context()
{
setActive(false);
delete m_context;
}
@ -49,7 +75,26 @@ Context::~Context()
////////////////////////////////////////////////////////////
bool Context::setActive(bool active)
{
return m_context->setActive(active);
bool result = m_context->setActive(active);
if (result)
currentContext = (active ? this : NULL);
return result;
}
////////////////////////////////////////////////////////////
const ContextSettings& Context::getSettings() const
{
return m_context->getSettings();
}
////////////////////////////////////////////////////////////
const Context* Context::getActiveContext()
{
return currentContext;
}
@ -60,6 +105,67 @@ GlFunctionPointer Context::getFunction(const char* name)
}
////////////////////////////////////////////////////////////
bool Context::isExtensionAvailable(const char* name)
{
static std::vector<std::string> extensions;
static bool loaded = false;
if (!loaded)
{
const Context* context = getActiveContext();
if (!context)
return false;
const char* extensionString = NULL;
if(context->getSettings().majorVersion < 3)
{
// Try to load the < 3.0 way
extensionString = reinterpret_cast<const char*>(glGetString(GL_EXTENSIONS));
do
{
const char* extension = extensionString;
while(*extensionString && (*extensionString != ' '))
extensionString++;
extensions.push_back(std::string(extension, extensionString));
}
while (*extensionString++);
}
else
{
// Try to load the >= 3.0 way
glGetStringiFuncType glGetStringiFunc = NULL;
glGetStringiFunc = reinterpret_cast<glGetStringiFuncType>(getFunction("glGetStringi"));
if (glGetStringiFunc)
{
int numExtensions = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &numExtensions);
if (numExtensions)
{
for (unsigned int i = 0; i < static_cast<unsigned int>(numExtensions); ++i)
{
extensionString = reinterpret_cast<const char*>(glGetStringiFunc(GL_EXTENSIONS, i));
extensions.push_back(extensionString);
}
}
}
}
loaded = true;
}
return std::find(extensions.begin(), extensions.end(), name) != extensions.end();
}
////////////////////////////////////////////////////////////
Context::Context(const ContextSettings& settings, unsigned int width, unsigned int height)
{

16
src/SFML/Window/GlContext.cpp
View File

@ -131,8 +131,8 @@ namespace
ContextType* sharedContext = NULL;
// Internal contexts
sf::ThreadLocalPtr<sf::priv::GlContext> internalContext(NULL);
std::set<sf::priv::GlContext*> internalContexts;
sf::ThreadLocalPtr<sf::Context> internalContext(NULL);
std::set<sf::Context*> internalContexts;
sf::Mutex internalContextsMutex;
// Check if the internal context of the current thread is valid
@ -148,11 +148,11 @@ namespace
}
// Retrieve the internal context for the current thread
sf::priv::GlContext* getInternalContext()
sf::Context* getInternalContext()
{
if (!hasInternalContext())
{
internalContext = sf::priv::GlContext::create();
internalContext = new sf::Context;
sf::Lock lock(internalContextsMutex);
internalContexts.insert(internalContext);
}
@ -171,6 +171,9 @@ void GlContext::globalInit()
{
Lock lock(mutex);
if (sharedContext)
return;
// Create the shared context
sharedContext = new ContextType(NULL);
sharedContext->initialize();
@ -187,13 +190,16 @@ void GlContext::globalCleanup()
{
Lock lock(mutex);
if (!sharedContext)
return;
// Destroy the shared context
delete sharedContext;
sharedContext = NULL;
// Destroy the internal contexts
Lock internalContextsLock(internalContextsMutex);
for (std::set<GlContext*>::iterator it = internalContexts.begin(); it != internalContexts.end(); ++it)
for (std::set<Context*>::iterator it = internalContexts.begin(); it != internalContexts.end(); ++it)
delete *it;
internalContexts.clear();
}

91
src/SFML/Window/Unix/GlxExtensions.cpp
View File

@ -30,6 +30,7 @@
#include <cstdlib>
#include <cstring>
#include <cstddef>
#include <string>
static sf::GlFunctionPointer IntGetProcAddress(const char* name)
{
@ -43,13 +44,14 @@ int sfglx_ext_ARB_multisample = sfglx_LOAD_FAILED;
int sfglx_ext_ARB_create_context = sfglx_LOAD_FAILED;
int sfglx_ext_ARB_create_context_profile = sfglx_LOAD_FAILED;
void (CODEGEN_FUNCPTR *sf_ptrc_glXSwapIntervalEXT)(Display *, GLXDrawable, int) = NULL;
void (CODEGEN_FUNCPTR *sf_ptrc_glXSwapIntervalEXT)(Display*, GLXDrawable, int) = NULL;
static int Load_EXT_swap_control(void)
{
int numFailed = 0;
sf_ptrc_glXSwapIntervalEXT = (void (CODEGEN_FUNCPTR *)(Display *, GLXDrawable, int))IntGetProcAddress("glXSwapIntervalEXT");
if(!sf_ptrc_glXSwapIntervalEXT) numFailed++;
sf_ptrc_glXSwapIntervalEXT = reinterpret_cast<void (CODEGEN_FUNCPTR*)(Display*, GLXDrawable, int)>(IntGetProcAddress("glXSwapIntervalEXT"));
if (!sf_ptrc_glXSwapIntervalEXT)
numFailed++;
return numFailed;
}
@ -58,8 +60,9 @@ int (CODEGEN_FUNCPTR *sf_ptrc_glXSwapIntervalMESA)(int) = NULL;
static int Load_MESA_swap_control(void)
{
int numFailed = 0;
sf_ptrc_glXSwapIntervalMESA = (int (CODEGEN_FUNCPTR *)(int))IntGetProcAddress("glXSwapIntervalMESA");
if(!sf_ptrc_glXSwapIntervalMESA) numFailed++;
sf_ptrc_glXSwapIntervalMESA = reinterpret_cast<int (CODEGEN_FUNCPTR*)(int)>(IntGetProcAddress("glXSwapIntervalMESA"));
if (!sf_ptrc_glXSwapIntervalMESA)
numFailed++;
return numFailed;
}
@ -68,26 +71,28 @@ int (CODEGEN_FUNCPTR *sf_ptrc_glXSwapIntervalSGI)(int) = NULL;
static int Load_SGI_swap_control(void)
{
int numFailed = 0;
sf_ptrc_glXSwapIntervalSGI = (int (CODEGEN_FUNCPTR *)(int))IntGetProcAddress("glXSwapIntervalSGI");
if(!sf_ptrc_glXSwapIntervalSGI) numFailed++;
sf_ptrc_glXSwapIntervalSGI = reinterpret_cast<int (CODEGEN_FUNCPTR *)(int)>(IntGetProcAddress("glXSwapIntervalSGI"));
if (!sf_ptrc_glXSwapIntervalSGI)
numFailed++;
return numFailed;
}
GLXContext (CODEGEN_FUNCPTR *sf_ptrc_glXCreateContextAttribsARB)(Display *, GLXFBConfig, GLXContext, Bool, const int *) = NULL;
GLXContext (CODEGEN_FUNCPTR *sf_ptrc_glXCreateContextAttribsARB)(Display*, GLXFBConfig, GLXContext, Bool, const int*) = NULL;
static int Load_ARB_create_context(void)
{
int numFailed = 0;
sf_ptrc_glXCreateContextAttribsARB = (GLXContext (CODEGEN_FUNCPTR *)(Display *, GLXFBConfig, GLXContext, Bool, const int *))IntGetProcAddress("glXCreateContextAttribsARB");
if(!sf_ptrc_glXCreateContextAttribsARB) numFailed++;
sf_ptrc_glXCreateContextAttribsARB = reinterpret_cast<GLXContext (CODEGEN_FUNCPTR*)(Display*, GLXFBConfig, GLXContext, Bool, const int*)>(IntGetProcAddress("glXCreateContextAttribsARB"));
if (!sf_ptrc_glXCreateContextAttribsARB)
numFailed++;
return numFailed;
}
typedef int (*PFN_LOADFUNCPOINTERS)(void);
typedef struct sfglx_StrToExtMap_s
{
const char *extensionName;
int *extensionVariable;
const char* extensionName;
int* extensionVariable;
PFN_LOADFUNCPOINTERS LoadExtension;
} sfglx_StrToExtMap;
@ -102,19 +107,20 @@ static sfglx_StrToExtMap ExtensionMap[6] = {
static int g_extensionMapSize = 6;
static sfglx_StrToExtMap *FindExtEntry(const char *extensionName)
static sfglx_StrToExtMap* FindExtEntry(const char* extensionName)
{
int loop;
sfglx_StrToExtMap *currLoc = ExtensionMap;
for(loop = 0; loop < g_extensionMapSize; ++loop, ++currLoc)
sfglx_StrToExtMap* currLoc = ExtensionMap;
for (int loop = 0; loop < g_extensionMapSize; ++loop, ++currLoc)
{
if(strcmp(extensionName, currLoc->extensionName) == 0)
if (std::strcmp(extensionName, currLoc->extensionName) == 0)
return currLoc;
}
return NULL;
}
static void ClearExtensionVars(void)
{
sfglx_ext_EXT_swap_control = sfglx_LOAD_FAILED;
@ -126,16 +132,16 @@ static void ClearExtensionVars(void)
}
static void LoadExtByName(const char *extensionName)
static void LoadExtByName(const char* extensionName)
{
sfglx_StrToExtMap *entry = NULL;
sfglx_StrToExtMap* entry = NULL;
entry = FindExtEntry(extensionName);
if(entry)
if (entry)
{
if(entry->LoadExtension)
if (entry->LoadExtension)
{
int numFailed = entry->LoadExtension();
if(numFailed == 0)
if (numFailed == 0)
{
*(entry->extensionVariable) = sfglx_LOAD_SUCCEEDED;
}
@ -152,46 +158,25 @@ static void LoadExtByName(const char *extensionName)
}
static void ProcExtsFromExtString(const char *strExtList)
static void ProcExtsFromExtString(const char* strExtList)
{
size_t iExtListLen = strlen(strExtList);
const char *strExtListEnd = strExtList + iExtListLen;
const char *strCurrPos = strExtList;
char strWorkBuff[256];
while(*strCurrPos)
do
{
/*Get the extension at our position.*/
int iStrLen = 0;
const char *strEndStr = strchr(strCurrPos, ' ');
int iStop = 0;
if(strEndStr == NULL)
{
strEndStr = strExtListEnd;
iStop = 1;
}
const char* begin = strExtList;
iStrLen = (int)((ptrdiff_t)strEndStr - (ptrdiff_t)strCurrPos);
while ((*strExtList != ' ') && *strExtList)
strExtList++;
if(iStrLen > 255)
return;
strncpy(strWorkBuff, strCurrPos, iStrLen);
strWorkBuff[iStrLen] = '\0';
LoadExtByName(strWorkBuff);
strCurrPos = strEndStr + 1;
if(iStop) break;
}
LoadExtByName(std::string(begin, strExtList).c_str());
} while (*strExtList++);
}
int sfglx_LoadFunctions(Display *display, int screen)
int sfglx_LoadFunctions(Display* display, int screen)
{
ClearExtensionVars();
ProcExtsFromExtString((const char *)glXQueryExtensionsString(display, screen));
ProcExtsFromExtString(reinterpret_cast<const char*>(glXQueryExtensionsString(display, screen)));
return sfglx_LOAD_SUCCEEDED;
}

40
src/SFML/Window/Unix/GlxExtensions.hpp
View File

@ -36,7 +36,7 @@
#include <GL/glx.h>
#ifdef CODEGEN_FUNCPTR
#undef CODEGEN_FUNCPTR
#endif /*CODEGEN_FUNCPTR*/
#endif // CODEGEN_FUNCPTR
#define CODEGEN_FUNCPTR
#ifndef GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS
@ -58,21 +58,21 @@ typedef double GLdouble;
typedef double GLclampd;
#define GLvoid void
#endif /*GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS*/
#endif // GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS
#ifndef GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS
#define GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS
#endif /*GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS*/
#endif // GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS
#ifndef GLEXT_64_TYPES_DEFINED
/* This code block is duplicated in glext.h, so must be protected */
// This code block is duplicated in glext.h, so must be protected
#define GLEXT_64_TYPES_DEFINED
/* Define int32_t, int64_t, and uint64_t types for UST/MSC */
/* (as used in the GLX_OML_sync_control extension). */
// Define int32_t, int64_t, and uint64_t types for UST/MSC
// (as used in the GLX_OML_sync_control extension).
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
#include <inttypes.h>
#elif defined(__sun__) || defined(__digital__)
@ -84,8 +84,8 @@ typedef unsigned long int uint64_t;
#else
typedef long long int int64_t;
typedef unsigned long long int uint64_t;
#endif /* __arch64__ */
#endif /* __STDC__ */
#endif // __arch64__
#endif // __STDC__
#elif defined( __VMS ) || defined(__sgi)
#include <inttypes.h>
#elif defined(__SCO__) || defined(__USLC__)
@ -101,7 +101,7 @@ typedef __int32 int32_t;
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#else
/* Fallback if nothing above works */
// Fallback if nothing above works
#include <inttypes.h>
#endif
#endif
@ -118,28 +118,28 @@ typedef unsigned __int64 uint64_t;
typedef struct __GLXFBConfigRec *GLXFBConfigSGIX;
typedef XID GLXPbufferSGIX;
typedef struct {
char pipeName[80]; /* Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX] */
char pipeName[80]; // Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX]
int networkId;
} GLXHyperpipeNetworkSGIX;
typedef struct {
char pipeName[80]; /* Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX] */
char pipeName[80]; // Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX]
int channel;
unsigned int participationType;
int timeSlice;
} GLXHyperpipeConfigSGIX;
typedef struct {
char pipeName[80]; /* Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX] */
char pipeName[80]; // Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX]
int srcXOrigin, srcYOrigin, srcWidth, srcHeight;
int destXOrigin, destYOrigin, destWidth, destHeight;
} GLXPipeRect;
typedef struct {
char pipeName[80]; /* Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX] */
char pipeName[80]; // Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX]
int XOrigin, YOrigin, maxHeight, maxWidth;
} GLXPipeRectLimits;
#ifdef __cplusplus
extern "C" {
#endif /*__cplusplus*/
#endif // __cplusplus
extern int sfglx_ext_EXT_swap_control;
extern int sfglx_ext_MESA_swap_control;
@ -168,7 +168,7 @@ extern int sfglx_ext_ARB_create_context_profile;
#define GLX_EXT_swap_control 1
extern void (CODEGEN_FUNCPTR *sf_ptrc_glXSwapIntervalEXT)(Display *, GLXDrawable, int);
#define glXSwapIntervalEXT sf_ptrc_glXSwapIntervalEXT
#endif /*GLX_EXT_swap_control*/
#endif // GLX_EXT_swap_control
// Declare entry point even if GLX header already provides glXSwapIntervalMESA
// We won't make use of an alias here
@ -178,13 +178,13 @@ extern int (CODEGEN_FUNCPTR *sf_ptrc_glXSwapIntervalMESA)(int);
#define GLX_SGI_swap_control 1
extern int (CODEGEN_FUNCPTR *sf_ptrc_glXSwapIntervalSGI)(int);
#define glXSwapIntervalSGI sf_ptrc_glXSwapIntervalSGI
#endif /*GLX_SGI_swap_control*/
#endif // GLX_SGI_swap_control
#ifndef GLX_ARB_create_context
#define GLX_ARB_create_context 1
extern GLXContext (CODEGEN_FUNCPTR *sf_ptrc_glXCreateContextAttribsARB)(Display *, GLXFBConfig, GLXContext, Bool, const int *);
extern GLXContext (CODEGEN_FUNCPTR *sf_ptrc_glXCreateContextAttribsARB)(Display*, GLXFBConfig, GLXContext, Bool, const int*);
#define glXCreateContextAttribsARB sf_ptrc_glXCreateContextAttribsARB
#endif /*GLX_ARB_create_context*/
#endif // GLX_ARB_create_context
enum sfglx_LoadStatus
@ -198,6 +198,6 @@ int sfglx_LoadFunctions(Display *display, int screen);
#ifdef __cplusplus
}
#endif /*__cplusplus*/
#endif // __cplusplus
#endif /* SF_POINTER_C_GENERATED_HEADER_GLXWIN_HPP */
#endif // SF_POINTER_C_GENERATED_HEADER_GLXWIN_HPP

109
src/SFML/Window/Win32/WglExtensions.cpp
View File

@ -30,6 +30,7 @@
#include <cstdlib>
#include <cstring>
#include <cstddef>
#include <string>
static sf::GlFunctionPointer IntGetProcAddress(const char* name)
{
@ -48,47 +49,53 @@ BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglSwapIntervalEXT)(int) = NULL;
static int Load_EXT_swap_control(void)
{
int numFailed = 0;
sf_ptrc_wglGetSwapIntervalEXT = (int (CODEGEN_FUNCPTR *)(void))IntGetProcAddress("wglGetSwapIntervalEXT");
if(!sf_ptrc_wglGetSwapIntervalEXT) numFailed++;
sf_ptrc_wglSwapIntervalEXT = (BOOL (CODEGEN_FUNCPTR *)(int))IntGetProcAddress("wglSwapIntervalEXT");
if(!sf_ptrc_wglSwapIntervalEXT) numFailed++;
sf_ptrc_wglGetSwapIntervalEXT = reinterpret_cast<int (CODEGEN_FUNCPTR*)(void)>(IntGetProcAddress("wglGetSwapIntervalEXT"));
if (!sf_ptrc_wglGetSwapIntervalEXT)
numFailed++;
sf_ptrc_wglSwapIntervalEXT = reinterpret_cast<BOOL (CODEGEN_FUNCPTR*)(int)>(IntGetProcAddress("wglSwapIntervalEXT"));
if (!sf_ptrc_wglSwapIntervalEXT)
numFailed++;
return numFailed;
}
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglChoosePixelFormatARB)(HDC, const int *, const FLOAT *, UINT, int *, UINT *) = NULL;
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglGetPixelFormatAttribfvARB)(HDC, int, int, UINT, const int *, FLOAT *) = NULL;
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglGetPixelFormatAttribivARB)(HDC, int, int, UINT, const int *, int *) = NULL;
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglChoosePixelFormatARB)(HDC, const int*, const FLOAT*, UINT, int*, UINT*) = NULL;
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglGetPixelFormatAttribfvARB)(HDC, int, int, UINT, const int*, FLOAT*) = NULL;
BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglGetPixelFormatAttribivARB)(HDC, int, int, UINT, const int*, int*) = NULL;
static int Load_ARB_pixel_format(void)
{
int numFailed = 0;
sf_ptrc_wglChoosePixelFormatARB = (BOOL (CODEGEN_FUNCPTR *)(HDC, const int *, const FLOAT *, UINT, int *, UINT *))IntGetProcAddress("wglChoosePixelFormatARB");
if(!sf_ptrc_wglChoosePixelFormatARB) numFailed++;
sf_ptrc_wglGetPixelFormatAttribfvARB = (BOOL (CODEGEN_FUNCPTR *)(HDC, int, int, UINT, const int *, FLOAT *))IntGetProcAddress("wglGetPixelFormatAttribfvARB");
if(!sf_ptrc_wglGetPixelFormatAttribfvARB) numFailed++;
sf_ptrc_wglGetPixelFormatAttribivARB = (BOOL (CODEGEN_FUNCPTR *)(HDC, int, int, UINT, const int *, int *))IntGetProcAddress("wglGetPixelFormatAttribivARB");
if(!sf_ptrc_wglGetPixelFormatAttribivARB) numFailed++;
sf_ptrc_wglChoosePixelFormatARB = reinterpret_cast<BOOL (CODEGEN_FUNCPTR*)(HDC, const int*, const FLOAT*, UINT, int*, UINT*)>(IntGetProcAddress("wglChoosePixelFormatARB"));
if (!sf_ptrc_wglChoosePixelFormatARB)
numFailed++;
sf_ptrc_wglGetPixelFormatAttribfvARB = reinterpret_cast<BOOL (CODEGEN_FUNCPTR *)(HDC, int, int, UINT, const int*, FLOAT*)>(IntGetProcAddress("wglGetPixelFormatAttribfvARB"));
if (!sf_ptrc_wglGetPixelFormatAttribfvARB)
numFailed++;
sf_ptrc_wglGetPixelFormatAttribivARB = reinterpret_cast<BOOL (CODEGEN_FUNCPTR*)(HDC, int, int, UINT, const int*, int*)>(IntGetProcAddress("wglGetPixelFormatAttribivARB"));
if (!sf_ptrc_wglGetPixelFormatAttribivARB)
numFailed++;
return numFailed;
}
HGLRC (CODEGEN_FUNCPTR *sf_ptrc_wglCreateContextAttribsARB)(HDC, HGLRC, const int *) = NULL;
HGLRC (CODEGEN_FUNCPTR *sf_ptrc_wglCreateContextAttribsARB)(HDC, HGLRC, const int*) = NULL;
static int Load_ARB_create_context(void)
{
int numFailed = 0;
sf_ptrc_wglCreateContextAttribsARB = (HGLRC (CODEGEN_FUNCPTR *)(HDC, HGLRC, const int *))IntGetProcAddress("wglCreateContextAttribsARB");
if(!sf_ptrc_wglCreateContextAttribsARB) numFailed++;
sf_ptrc_wglCreateContextAttribsARB = reinterpret_cast<HGLRC (CODEGEN_FUNCPTR*)(HDC, HGLRC, const int*)>(IntGetProcAddress("wglCreateContextAttribsARB"));
if (!sf_ptrc_wglCreateContextAttribsARB)
numFailed++;
return numFailed;
}
static const char * (CODEGEN_FUNCPTR *sf_ptrc_wglGetExtensionsStringARB)(HDC) = NULL;
static const char* (CODEGEN_FUNCPTR *sf_ptrc_wglGetExtensionsStringARB)(HDC) = NULL;
typedef int (*PFN_LOADFUNCPOINTERS)(void);
typedef struct sfwgl_StrToExtMap_s
{
const char *extensionName;
int *extensionVariable;
const char* extensionName;
int* extensionVariable;
PFN_LOADFUNCPOINTERS LoadExtension;
} sfwgl_StrToExtMap;
@ -102,19 +109,20 @@ static sfwgl_StrToExtMap ExtensionMap[5] = {
static int g_extensionMapSize = 5;
static sfwgl_StrToExtMap *FindExtEntry(const char *extensionName)
static sfwgl_StrToExtMap* FindExtEntry(const char* extensionName)
{
int loop;
sfwgl_StrToExtMap *currLoc = ExtensionMap;
for(loop = 0; loop < g_extensionMapSize; ++loop, ++currLoc)
sfwgl_StrToExtMap* currLoc = ExtensionMap;
for (int loop = 0; loop < g_extensionMapSize; ++loop, ++currLoc)
{
if(strcmp(extensionName, currLoc->extensionName) == 0)
if (std::strcmp(extensionName, currLoc->extensionName) == 0)
return currLoc;
}
return NULL;
}
static void ClearExtensionVars(void)
{
sfwgl_ext_EXT_swap_control = sfwgl_LOAD_FAILED;
@ -125,16 +133,16 @@ static void ClearExtensionVars(void)
}
static void LoadExtByName(const char *extensionName)
static void LoadExtByName(const char* extensionName)
{
sfwgl_StrToExtMap *entry = NULL;
sfwgl_StrToExtMap* entry = NULL;
entry = FindExtEntry(extensionName);
if(entry)
if (entry)
{
if(entry->LoadExtension)
if (entry->LoadExtension)
{
int numFailed = entry->LoadExtension();
if(numFailed == 0)
if (numFailed == 0)
{
*(entry->extensionVariable) = sfwgl_LOAD_SUCCEEDED;
}
@ -151,48 +159,29 @@ static void LoadExtByName(const char *extensionName)
}
static void ProcExtsFromExtString(const char *strExtList)
static void ProcExtsFromExtString(const char* strExtList)
{
size_t iExtListLen = strlen(strExtList);
const char *strExtListEnd = strExtList + iExtListLen;
const char *strCurrPos = strExtList;
char strWorkBuff[256];
while(*strCurrPos)
do
{
/*Get the extension at our position.*/
int iStrLen = 0;
const char *strEndStr = strchr(strCurrPos, ' ');
int iStop = 0;
if(strEndStr == NULL)
{
strEndStr = strExtListEnd;
iStop = 1;
}
const char* begin = strExtList;
iStrLen = (int)((ptrdiff_t)strEndStr - (ptrdiff_t)strCurrPos);
while ((*strExtList != ' ') && *strExtList)
strExtList++;
if(iStrLen > 255)
return;
strncpy(strWorkBuff, strCurrPos, iStrLen);
strWorkBuff[iStrLen] = '\0';
LoadExtByName(strWorkBuff);
strCurrPos = strEndStr + 1;
if(iStop) break;
}
LoadExtByName(std::string(begin, strExtList).c_str());
} while (*strExtList++);
}
int sfwgl_LoadFunctions(HDC hdc)
{
ClearExtensionVars();
sf_ptrc_wglGetExtensionsStringARB = (const char * (CODEGEN_FUNCPTR *)(HDC))IntGetProcAddress("wglGetExtensionsStringARB");
if(!sf_ptrc_wglGetExtensionsStringARB) return sfwgl_LOAD_FAILED;
sf_ptrc_wglGetExtensionsStringARB = reinterpret_cast<const char* (CODEGEN_FUNCPTR*)(HDC)>(IntGetProcAddress("wglGetExtensionsStringARB"));
if (!sf_ptrc_wglGetExtensionsStringARB)
return sfwgl_LOAD_FAILED;
ProcExtsFromExtString((const char *)sf_ptrc_wglGetExtensionsStringARB(hdc));
ProcExtsFromExtString(reinterpret_cast<const char*>(sf_ptrc_wglGetExtensionsStringARB(hdc)));
return sfwgl_LOAD_SUCCEEDED;
}

26
src/SFML/Window/Win32/WglExtensions.hpp
View File

@ -41,7 +41,7 @@
#ifdef CODEGEN_FUNCPTR
#undef CODEGEN_FUNCPTR
#endif /*CODEGEN_FUNCPTR*/
#endif // CODEGEN_FUNCPTR
#define CODEGEN_FUNCPTR WINAPI
#ifndef GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS
@ -63,14 +63,14 @@ typedef double GLdouble;
typedef double GLclampd;
#define GLvoid void
#endif /*GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS*/
#endif // GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS
#ifndef GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS
#define GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS
#endif /*GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS*/
#endif // GL_LOAD_GEN_BASIC_OPENGL_TYPEDEFS
struct _GPU_DEVICE {
@ -90,7 +90,7 @@ typedef struct _GPU_DEVICE *PGPU_DEVICE;
#ifdef __cplusplus
extern "C" {
#endif /*__cplusplus*/
#endif // __cplusplus
extern int sfwgl_ext_EXT_swap_control;
extern int sfwgl_ext_ARB_multisample;
@ -170,24 +170,24 @@ extern int (CODEGEN_FUNCPTR *sf_ptrc_wglGetSwapIntervalEXT)(void);
#define wglGetSwapIntervalEXT sf_ptrc_wglGetSwapIntervalEXT
extern BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglSwapIntervalEXT)(int);
#define wglSwapIntervalEXT sf_ptrc_wglSwapIntervalEXT
#endif /*WGL_EXT_swap_control*/
#endif // WGL_EXT_swap_control
#ifndef WGL_ARB_pixel_format
#define WGL_ARB_pixel_format 1
extern BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglChoosePixelFormatARB)(HDC, const int *, const FLOAT *, UINT, int *, UINT *);
extern BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglChoosePixelFormatARB)(HDC, const int*, const FLOAT*, UINT, int*, UINT*);
#define wglChoosePixelFormatARB sf_ptrc_wglChoosePixelFormatARB
extern BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglGetPixelFormatAttribfvARB)(HDC, int, int, UINT, const int *, FLOAT *);
extern BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglGetPixelFormatAttribfvARB)(HDC, int, int, UINT, const int*, FLOAT*);
#define wglGetPixelFormatAttribfvARB sf_ptrc_wglGetPixelFormatAttribfvARB
extern BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglGetPixelFormatAttribivARB)(HDC, int, int, UINT, const int *, int *);
extern BOOL (CODEGEN_FUNCPTR *sf_ptrc_wglGetPixelFormatAttribivARB)(HDC, int, int, UINT, const int*, int*);
#define wglGetPixelFormatAttribivARB sf_ptrc_wglGetPixelFormatAttribivARB
#endif /*WGL_ARB_pixel_format*/
#endif // WGL_ARB_pixel_format
#ifndef WGL_ARB_create_context
#define WGL_ARB_create_context 1
extern HGLRC (CODEGEN_FUNCPTR *sf_ptrc_wglCreateContextAttribsARB)(HDC, HGLRC, const int *);
extern HGLRC (CODEGEN_FUNCPTR *sf_ptrc_wglCreateContextAttribsARB)(HDC, HGLRC, const int*);
#define wglCreateContextAttribsARB sf_ptrc_wglCreateContextAttribsARB
#endif /*WGL_ARB_create_context*/
#endif // WGL_ARB_create_context
enum sfwgl_LoadStatus
@ -201,6 +201,6 @@ int sfwgl_LoadFunctions(HDC hdc);
#ifdef __cplusplus
}
#endif /*__cplusplus*/
#endif // __cplusplus
#endif /* SF_POINTER_C_GENERATED_HEADER_WINDOWSGL_HPP */
#endif // SF_POINTER_C_GENERATED_HEADER_WINDOWSGL_HPP