Differential D3336 Diff 8232 libkwineffects/kwinglutils_funcs.cpp

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libkwineffects/kwinglutils_funcs.cpp

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16 16​
17You should have received a copy of the GNU General Public License 17​You should have received a copy of the GNU General Public License
18along with this program. If not, see <http://www.gnu.org/licenses/>. 18​along with this program. If not, see <http://www.gnu.org/licenses/>.
19*********************************************************************/ 19​*********************************************************************/
20 20​
21#include "kwinglutils.h" 21​#include "kwinglutils.h"
22#include "kwinglplatform.h" 22​#include "kwinglplatform.h"
23 23​
24#include <dlfcn.h> ​
25#if HAVE_EPOXY_GLX ​
26#include <epoxy/glx.h> ​
27#endif ​
28 ​
29 24​
30// Resolves given function, using getProcAddress 25​// Resolves given function, using getProcAddress
31#define GL_RESOLVE( function ) \ ​
32 if (platformInterface == GlxPlatformInterface) \ ​
33 function = (function ## _func)getProcAddress( #function ); \ ​
34 else if (platformInterface == EglPlatformInterface) \ ​
35 function = (function ## _func)eglGetProcAddress( #function ); ​
36// Same as above but tries to use function "symbolName" ​
37// Useful when functionality is defined in an extension with a different name 26​// Useful when functionality is defined in an extension with a different name
broulikUnsubmitted
Done

There's nothing above anymore

broulik: There's nothing above anymore
38#define GL_RESOLVE_WITH_EXT( function, symbolName ) \ 27​#define GL_RESOLVE_WITH_EXT( function, symbolName ) \
39 if (platformInterface == GlxPlatformInterface) { \ 28​ function = (function ## _func)resolveFunction( #symbolName );
40 function = (function ## _func)getProcAddress( #symbolName ); \ ​
41 } else if (platformInterface == EglPlatformInterface) { \ ​
42 function = (function ## _func)eglGetProcAddress( #symbolName ); \ ​
43 } ​
44 29​
45namespace KWin 30​namespace KWin
46{ 31​{
47 32​
48static GLenum GetGraphicsResetStatus(); 33​static GLenum GetGraphicsResetStatus();
49static void ReadnPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, 34​static void ReadnPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format,
50 GLenum type, GLsizei bufSize, GLvoid *data); 35​ GLenum type, GLsizei bufSize, GLvoid *data);
51static void GetnUniformfv(GLuint program, GLint location, GLsizei bufSize, GLfloat *params); 36​static void GetnUniformfv(GLuint program, GLint location, GLsizei bufSize, GLfloat *params);
52 37​
53// GL_ARB_robustness / GL_EXT_robustness 38​// GL_ARB_robustness / GL_EXT_robustness
54glGetGraphicsResetStatus_func glGetGraphicsResetStatus; 39​glGetGraphicsResetStatus_func glGetGraphicsResetStatus;
55glReadnPixels_func glReadnPixels; 40​glReadnPixels_func glReadnPixels;
56glGetnUniformfv_func glGetnUniformfv; 41​glGetnUniformfv_func glGetnUniformfv;
57 42​
58typedef void (*glXFuncPtr)(); ​
59 ​
60static glXFuncPtr getProcAddress(const char* name) ​
61{ ​
62 glXFuncPtr ret = nullptr; ​
63#if HAVE_EPOXY_GLX ​
64 ret = glXGetProcAddress((const GLubyte*) name); ​
65#endif ​
66 if (ret == nullptr) ​
67 ret = (glXFuncPtr) dlsym(RTLD_DEFAULT, name); ​
68 return ret; ​
69} ​
70 ​
71void eglResolveFunctions() 43​void eglResolveFunctions()
72{ 44​{
73} 45​}
74 46​
75void glResolveFunctions(OpenGLPlatformInterface platformInterface) 47​void glResolveFunctions(std::function<resolveFuncPtr(const char*)> resolveFunction)
76{ 48​{
77 const bool haveArbRobustness = hasGLExtension(QByteArrayLiteral("GL_ARB_robustness")); 49​ const bool haveArbRobustness = hasGLExtension(QByteArrayLiteral("GL_ARB_robustness"));
78 const bool haveExtRobustness = hasGLExtension(QByteArrayLiteral("GL_EXT_robustness")); 50​ const bool haveExtRobustness = hasGLExtension(QByteArrayLiteral("GL_EXT_robustness"));
79 bool robustContext = false; 51​ bool robustContext = false;
80 if (GLPlatform::instance()->isGLES()) { 52​ if (GLPlatform::instance()->isGLES()) {
81 if (haveExtRobustness) { 53​ if (haveExtRobustness) {
82 GLint value = 0; 54​ GLint value = 0;
83 glGetIntegerv(GL_CONTEXT_ROBUST_ACCESS_EXT, &value); 55​ glGetIntegerv(GL_CONTEXT_ROBUST_ACCESS_EXT, &value);
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98 } 70​ }
99 if (robustContext && haveArbRobustness) { 71​ if (robustContext && haveArbRobustness) {
100 // See http://www.opengl.org/registry/specs/ARB/robustness.txt 72​ // See http://www.opengl.org/registry/specs/ARB/robustness.txt
101 GL_RESOLVE_WITH_EXT(glGetGraphicsResetStatus, glGetGraphicsResetStatusARB); 73​ GL_RESOLVE_WITH_EXT(glGetGraphicsResetStatus, glGetGraphicsResetStatusARB);
102 GL_RESOLVE_WITH_EXT(glReadnPixels, glReadnPixelsARB); 74​ GL_RESOLVE_WITH_EXT(glReadnPixels, glReadnPixelsARB);
103 GL_RESOLVE_WITH_EXT(glGetnUniformfv, glGetnUniformfvARB); 75​ GL_RESOLVE_WITH_EXT(glGetnUniformfv, glGetnUniformfvARB);
104 } else if (robustContext && haveExtRobustness) { 76​ } else if (robustContext && haveExtRobustness) {
105 // See http://www.khronos.org/registry/gles/extensions/EXT/EXT_robustness.txt 77​ // See http://www.khronos.org/registry/gles/extensions/EXT/EXT_robustness.txt
106 glGetGraphicsResetStatus = (glGetGraphicsResetStatus_func) eglGetProcAddress("glGetGraphicsResetStatusEXT"); 78​ glGetGraphicsResetStatus = (glGetGraphicsResetStatus_func) resolveFunction("glGetGraphicsResetStatusEXT");
107 glReadnPixels = (glReadnPixels_func) eglGetProcAddress("glReadnPixelsEXT"); 79​ glReadnPixels = (glReadnPixels_func) resolveFunction("glReadnPixelsEXT");
108 glGetnUniformfv = (glGetnUniformfv_func) eglGetProcAddress("glGetnUniformfvEXT"); 80​ glGetnUniformfv = (glGetnUniformfv_func) resolveFunction("glGetnUniformfvEXT");
109 } else { 81​ } else {
110 glGetGraphicsResetStatus = KWin::GetGraphicsResetStatus; 82​ glGetGraphicsResetStatus = KWin::GetGraphicsResetStatus;
111 glReadnPixels = KWin::ReadnPixels; 83​ glReadnPixels = KWin::ReadnPixels;
112 glGetnUniformfv = KWin::GetnUniformfv; 84​ glGetnUniformfv = KWin::GetnUniformfv;
113 } 85​ }
114} 86​}
115 87​
116static GLenum GetGraphicsResetStatus() 88​static GLenum GetGraphicsResetStatus()
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