winewayland.drv: Implement wglCreateContextAttribsARB.
This commit is contained in:
Alexandros Frantzis
Alexandre Julliard
parent
3042c7100c
commit
ac32f0a81d
1 changed files with 98 additions and 4 deletions
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@ -24,6 +24,7 @@
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#include "config.h"
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#include <assert.h>
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#include <dlfcn.h>
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#include <stdlib.h>
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#include <string.h>
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@ -92,6 +93,7 @@ struct wgl_context
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EGLConfig config;
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EGLContext context;
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struct wayland_gl_drawable *draw, *read, *new_draw, *new_read;
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EGLint attribs[16];
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};
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/* lookup the existing drawable for a window, gl_object_mutex must be held */
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@ -320,6 +322,68 @@ static BOOL wgl_context_make_current(struct wgl_context *ctx, HWND draw_hwnd,
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return ret;
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}
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static BOOL wgl_context_populate_attribs(struct wgl_context *ctx, const int *wgl_attribs)
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{
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EGLint *attribs_end = ctx->attribs;
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if (!wgl_attribs) goto out;
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for (; wgl_attribs[0] != 0; wgl_attribs += 2)
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{
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EGLint name;
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TRACE("%#x %#x\n", wgl_attribs[0], wgl_attribs[1]);
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/* Find the EGL attribute names corresponding to the WGL names.
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* For all of the attributes below, the values match between the two
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* systems, so we can use them directly. */
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switch (wgl_attribs[0])
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{
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case WGL_CONTEXT_MAJOR_VERSION_ARB:
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name = EGL_CONTEXT_MAJOR_VERSION_KHR;
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break;
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case WGL_CONTEXT_MINOR_VERSION_ARB:
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name = EGL_CONTEXT_MINOR_VERSION_KHR;
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break;
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case WGL_CONTEXT_FLAGS_ARB:
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name = EGL_CONTEXT_FLAGS_KHR;
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break;
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case WGL_CONTEXT_OPENGL_NO_ERROR_ARB:
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name = EGL_CONTEXT_OPENGL_NO_ERROR_KHR;
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break;
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case WGL_CONTEXT_PROFILE_MASK_ARB:
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if (wgl_attribs[1] & WGL_CONTEXT_ES2_PROFILE_BIT_EXT)
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{
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ERR("OpenGL ES contexts are not supported\n");
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return FALSE;
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}
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name = EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR;
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break;
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default:
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name = EGL_NONE;
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FIXME("Unhandled attributes: %#x %#x\n", wgl_attribs[0], wgl_attribs[1]);
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}
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if (name != EGL_NONE)
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{
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EGLint *dst = ctx->attribs;
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/* Check if we have already set the same attribute and replace it. */
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for (; dst != attribs_end && *dst != name; dst += 2) continue;
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/* Our context attribute array should have enough space for all the
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* attributes we support (we merge repetitions), plus EGL_NONE. */
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assert(dst - ctx->attribs <= ARRAY_SIZE(ctx->attribs) - 3);
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dst[0] = name;
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dst[1] = wgl_attribs[1];
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if (dst == attribs_end) attribs_end += 2;
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}
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}
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out:
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*attribs_end = EGL_NONE;
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return TRUE;
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}
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static void wgl_context_refresh(struct wgl_context *ctx)
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{
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BOOL refresh = FALSE;
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@ -381,7 +445,8 @@ static BOOL set_pixel_format(HDC hdc, int format, BOOL internal)
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return TRUE;
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}
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static struct wgl_context *create_context(HDC hdc)
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static struct wgl_context *create_context(HDC hdc, struct wgl_context *share,
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const int *attribs)
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{
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struct wayland_gl_drawable *gl;
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struct wgl_context *ctx;
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@ -394,8 +459,23 @@ static struct wgl_context *create_context(HDC hdc)
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goto out;
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}
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if (!wgl_context_populate_attribs(ctx, attribs))
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{
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ctx->attribs[0] = EGL_NONE;
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goto out;
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}
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/* For now only OpenGL is supported. It's enough to set the API only for
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* context creation, since:
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* 1. the default API is EGL_OPENGL_ES_API
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* 2. the EGL specification says in section 3.7:
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* > EGL_OPENGL_API and EGL_OPENGL_ES_API are interchangeable for all
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* > purposes except eglCreateContext.
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*/
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p_eglBindAPI(EGL_OPENGL_API);
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ctx->context = p_eglCreateContext(egl_display, EGL_NO_CONFIG_KHR,
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EGL_NO_CONTEXT, NULL);
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share ? share->context : EGL_NO_CONTEXT,
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ctx->attribs);
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pthread_mutex_lock(&gl_object_mutex);
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list_add_head(&gl_contexts, &ctx->entry);
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@ -427,8 +507,15 @@ static BOOL wayland_wglCopyContext(struct wgl_context *src,
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static struct wgl_context *wayland_wglCreateContext(HDC hdc)
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{
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TRACE("hdc=%p\n", hdc);
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p_eglBindAPI(EGL_OPENGL_API);
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return create_context(hdc);
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return create_context(hdc, NULL, NULL);
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}
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static struct wgl_context *wayland_wglCreateContextAttribsARB(HDC hdc,
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struct wgl_context *share,
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const int *attribs)
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{
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TRACE("hdc=%p share=%p attribs=%p\n", hdc, share, attribs);
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return create_context(hdc, share, attribs);
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}
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static BOOL wayland_wglDeleteContext(struct wgl_context *ctx)
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@ -623,6 +710,11 @@ static BOOL init_opengl_funcs(void)
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opengl_funcs.ext.p_wglGetCurrentReadDCARB = (void *)1; /* never called */
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opengl_funcs.ext.p_wglMakeContextCurrentARB = wayland_wglMakeContextCurrentARB;
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register_extension("WGL_ARB_create_context");
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register_extension("WGL_ARB_create_context_no_error");
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register_extension("WGL_ARB_create_context_profile");
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opengl_funcs.ext.p_wglCreateContextAttribsARB = wayland_wglCreateContextAttribsARB;
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return TRUE;
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}
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@ -751,6 +843,8 @@ static void init_opengl(void)
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if (!has_extension(egl_exts, #ext)) \
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{ ERR("Failed to find required extension %s\n", #ext); goto err; } \
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} while(0)
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REQUIRE_EXT(EGL_KHR_create_context);
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REQUIRE_EXT(EGL_KHR_create_context_no_error);
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REQUIRE_EXT(EGL_KHR_no_config_context);
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#undef REQUIRE_EXT
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