winemac: Implement WGL_ARB_make_current_read.
This commit is contained in:
Ken Thomases
Alexandre Julliard
parent
3f3ee6393d
commit
8d0d95c033
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@ -57,7 +57,8 @@ struct wgl_context
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int format;
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macdrv_opengl_context context;
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CGLContextObj cglcontext;
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macdrv_view view;
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macdrv_view draw_view;
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macdrv_view read_view;
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BOOL has_been_current;
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BOOL sharing;
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};
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@ -70,6 +71,11 @@ static const char *opengl_func_names[] = { ALL_WGL_FUNCS };
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#undef USE_GL_FUNC
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static void (*pglCopyColorTable)(GLenum target, GLenum internalformat, GLint x, GLint y,
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GLsizei width);
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static void (*pglCopyPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum type);
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static void (*pglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height,
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GLenum format, GLenum type, void *pixels);
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static void (*pglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
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@ -1262,6 +1268,87 @@ void set_gl_view_parent(HWND hwnd, HWND parent)
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}
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/**********************************************************************
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* make_context_current
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*/
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static void make_context_current(struct wgl_context *context, BOOL read)
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{
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macdrv_view view = read ? context->read_view : context->draw_view;
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macdrv_make_context_current(context->context, view);
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}
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/**********************************************************************
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* macdrv_glCopyColorTable
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*
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* Hook into glCopyColorTable as part of the implementation of
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* wglMakeContextCurrentARB. If the context has a separate readable,
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* temporarily make that current, do glCopyColorTable, and then set it
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* back to the drawable. This is modeled after what Mesa GLX's Apple
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* implementation does.
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*/
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static void macdrv_glCopyColorTable(GLenum target, GLenum internalformat, GLint x, GLint y,
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GLsizei width)
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{
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struct wgl_context *context = NtCurrentTeb()->glContext;
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if (context->read_view)
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make_context_current(context, TRUE);
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pglCopyColorTable(target, internalformat, x, y, width);
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if (context->read_view)
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make_context_current(context, FALSE);
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}
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/**********************************************************************
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* macdrv_glCopyPixels
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*
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* Hook into glCopyPixels as part of the implementation of
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* wglMakeContextCurrentARB. If the context has a separate readable,
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* temporarily make that current, do glCopyPixels, and then set it back
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* to the drawable. This is modeled after what Mesa GLX's Apple
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* implementation does.
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*/
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static void macdrv_glCopyPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum type)
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{
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struct wgl_context *context = NtCurrentTeb()->glContext;
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if (context->read_view)
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make_context_current(context, TRUE);
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pglCopyPixels(x, y, width, height, type);
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if (context->read_view)
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make_context_current(context, FALSE);
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}
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/**********************************************************************
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* macdrv_glReadPixels
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*
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* Hook into glReadPixels as part of the implementation of
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* wglMakeContextCurrentARB. If the context has a separate readable,
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* temporarily make that current, do glReadPixels, and then set it back
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* to the drawable. This is modeled after what Mesa GLX's Apple
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* implementation does.
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*/
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static void macdrv_glReadPixels(GLint x, GLint y, GLsizei width, GLsizei height,
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GLenum format, GLenum type, void *pixels)
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{
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struct wgl_context *context = NtCurrentTeb()->glContext;
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if (context->read_view)
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make_context_current(context, TRUE);
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pglReadPixels(x, y, width, height, format, type, pixels);
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if (context->read_view)
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make_context_current(context, FALSE);
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}
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/**********************************************************************
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* macdrv_glViewport
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*
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@ -1304,6 +1391,89 @@ static const GLubyte *macdrv_wglGetExtensionsStringEXT(void)
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}
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/***********************************************************************
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* macdrv_wglMakeContextCurrentARB
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*
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* WGL_ARB_make_current_read: wglMakeContextCurrentARB
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*
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* This is not supported directly by OpenGL on the Mac. We emulate it
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* by hooking into glReadPixels, glCopyPixels, and glCopyColorTable to
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* temporarily swap the drawable. This follows the technique used in
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* the implementation of Mesa GLX for Apple.
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*/
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static BOOL macdrv_wglMakeContextCurrentARB(HDC draw_hdc, HDC read_hdc, struct wgl_context *context)
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{
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struct macdrv_win_data *data;
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HWND hwnd;
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TRACE("draw_hdc %p read_hdc %p context %p/%p/%p\n", draw_hdc, read_hdc, context,
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(context ? context->context : NULL), (context ? context->cglcontext : NULL));
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if (!context)
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{
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macdrv_make_context_current(NULL, NULL);
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NtCurrentTeb()->glContext = NULL;
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return TRUE;
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}
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if ((hwnd = WindowFromDC(draw_hdc)))
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{
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if (!(data = get_win_data(hwnd)))
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{
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FIXME("draw DC for window %p of other process: not implemented\n", hwnd);
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return FALSE;
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}
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if (!data->pixel_format)
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{
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WARN("no pixel format set\n");
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release_win_data(data);
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SetLastError(ERROR_INVALID_HANDLE);
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return FALSE;
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}
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if (context->format != data->pixel_format)
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{
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WARN("mismatched pixel format draw_hdc %p %u context %p %u\n", draw_hdc, data->pixel_format, context, context->format);
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release_win_data(data);
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SetLastError(ERROR_INVALID_PIXEL_FORMAT);
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return FALSE;
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}
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context->draw_view = data->gl_view;
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release_win_data(data);
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}
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else
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{
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WARN("no window for DC\n");
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SetLastError(ERROR_INVALID_HANDLE);
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return FALSE;
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}
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context->read_view = NULL;
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if (read_hdc && read_hdc != draw_hdc)
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{
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if ((hwnd = WindowFromDC(read_hdc)))
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{
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if ((data = get_win_data(hwnd)))
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{
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if (data->gl_view != context->draw_view)
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context->read_view = data->gl_view;
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release_win_data(data);
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}
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}
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}
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TRACE("making context current with draw_view %p read_view %p format %u\n",
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context->draw_view, context->read_view, context->format);
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make_context_current(context, FALSE);
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context->has_been_current = TRUE;
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NtCurrentTeb()->glContext = context;
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return TRUE;
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}
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/**********************************************************************
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* macdrv_wglSetPixelFormatWINE
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*
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@ -1332,6 +1502,10 @@ static void load_extensions(void)
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register_extension("WGL_ARB_extensions_string");
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opengl_funcs.ext.p_wglGetExtensionsStringARB = macdrv_wglGetExtensionsStringARB;
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register_extension("WGL_ARB_make_current_read");
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opengl_funcs.ext.p_wglGetCurrentReadDCARB = (void *)1; /* never called */
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opengl_funcs.ext.p_wglMakeContextCurrentARB = macdrv_wglMakeContextCurrentARB;
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/* TODO:
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WGL_ARB_create_context: wglCreateContextAttribsARB
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WGL_ARB_create_context_profile
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@ -1386,9 +1560,17 @@ static BOOL init_opengl(void)
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/* redirect some standard OpenGL functions */
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#define REDIRECT(func) \
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do { p##func = opengl_funcs.gl.p_##func; opengl_funcs.gl.p_##func = macdrv_##func; } while(0)
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REDIRECT(glCopyPixels);
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REDIRECT(glReadPixels);
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REDIRECT(glViewport);
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#undef REDIRECT
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/* redirect some OpenGL extension functions */
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#define REDIRECT(func) \
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do { if (opengl_funcs.ext.p_##func) { p##func = opengl_funcs.ext.p_##func; opengl_funcs.ext.p_##func = macdrv_##func; } } while(0)
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REDIRECT(glCopyColorTable);
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#undef REDIRECT
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if (!init_gl_info())
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goto failed;
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@ -1743,59 +1925,10 @@ static PROC macdrv_wglGetProcAddress(const char *proc)
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*/
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static BOOL macdrv_wglMakeCurrent(HDC hdc, struct wgl_context *context)
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{
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struct macdrv_win_data *data;
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HWND hwnd;
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TRACE("hdc %p context %p/%p/%p\n", hdc, context, (context ? context->context : NULL),
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(context ? context->cglcontext : NULL));
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if (!context)
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{
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macdrv_make_context_current(NULL, NULL);
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NtCurrentTeb()->glContext = NULL;
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return TRUE;
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}
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if ((hwnd = WindowFromDC(hdc)))
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{
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if (!(data = get_win_data(hwnd)))
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{
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FIXME("DC for window %p of other process: not implemented\n", hwnd);
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return FALSE;
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}
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if (!data->pixel_format)
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{
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WARN("no pixel format set\n");
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release_win_data(data);
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SetLastError(ERROR_INVALID_HANDLE);
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return FALSE;
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}
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if (context->format != data->pixel_format)
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{
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WARN("mismatched pixel format hdc %p %u context %p %u\n", hdc, data->pixel_format, context, context->format);
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release_win_data(data);
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SetLastError(ERROR_INVALID_PIXEL_FORMAT);
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return FALSE;
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}
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context->view = data->gl_view;
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release_win_data(data);
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}
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else
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{
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WARN("no window for DC\n");
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SetLastError(ERROR_INVALID_HANDLE);
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return FALSE;
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}
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TRACE("making context current with view %p format %u\n", context->view, context->format);
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macdrv_make_context_current(context->context, context->view);
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context->has_been_current = TRUE;
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NtCurrentTeb()->glContext = context;
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return TRUE;
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return macdrv_wglMakeContextCurrentARB(hdc, hdc, context);
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}
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/**********************************************************************
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