#include <assert.h>
#include <stdlib.h>
#include <string.h>
+#include "egldefines.h"
#include "egldisplay.h"
#include "egldriver.h"
#include "eglcontext.h"
#include "egllog.h"
#include "eglsurface.h"
-
-static void
-_eglClampSwapInterval(_EGLSurface *surf, EGLint interval)
-{
- EGLint bound = surf->Config->MaxSwapInterval;
- if (interval >= bound) {
- interval = bound;
- }
- else {
- bound = surf->Config->MinSwapInterval;
- if (interval < bound)
- interval = bound;
- }
- surf->SwapInterval = interval;
-}
-
+#include "util/macros.h"
/**
* Parse the list of surface attributes and return the proper error code.
static EGLint
_eglParseSurfaceAttribList(_EGLSurface *surf, const EGLint *attrib_list)
{
- _EGLDisplay *dpy = surf->Resource.Display;
+ _EGLDisplay *disp = surf->Resource.Display;
EGLint type = surf->Type;
EGLint texture_type = EGL_PBUFFER_BIT;
EGLint i, err = EGL_SUCCESS;
- EGLint tex_target = -1;
- EGLint tex_format = -1;
+ EGLint attr = EGL_NONE;
+ EGLint val = EGL_NONE;
if (!attrib_list)
return EGL_SUCCESS;
- if (dpy->Extensions.NOK_texture_from_pixmap)
+ if (disp->Extensions.NOK_texture_from_pixmap)
texture_type |= EGL_PIXMAP_BIT;
for (i = 0; attrib_list[i] != EGL_NONE; i++) {
- EGLint attr = attrib_list[i++];
- EGLint val = attrib_list[i];
+ attr = attrib_list[i++];
+ val = attrib_list[i];
switch (attr) {
/* common attributes */
case EGL_GL_COLORSPACE_KHR:
- if (!dpy->Extensions.KHR_gl_colorspace) {
+ if (!disp->Extensions.KHR_gl_colorspace) {
err = EGL_BAD_ATTRIBUTE;
break;
}
break;
surf->GLColorspace = val;
break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_RX_EXT:
+ if (!disp->Extensions.EXT_surface_SMPTE2086_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.display_primary_r.x = val;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_RY_EXT:
+ if (!disp->Extensions.EXT_surface_SMPTE2086_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.display_primary_r.y = val;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_GX_EXT:
+ if (!disp->Extensions.EXT_surface_SMPTE2086_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.display_primary_g.x = val;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_GY_EXT:
+ if (!disp->Extensions.EXT_surface_SMPTE2086_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.display_primary_g.y = val;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_BX_EXT:
+ if (!disp->Extensions.EXT_surface_SMPTE2086_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.display_primary_b.x = val;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_BY_EXT:
+ if (!disp->Extensions.EXT_surface_SMPTE2086_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.display_primary_b.y = val;
+ break;
+ case EGL_SMPTE2086_WHITE_POINT_X_EXT:
+ if (!disp->Extensions.EXT_surface_SMPTE2086_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.white_point.x = val;
+ break;
+ case EGL_SMPTE2086_WHITE_POINT_Y_EXT:
+ if (!disp->Extensions.EXT_surface_SMPTE2086_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.white_point.y = val;
+ break;
+ case EGL_SMPTE2086_MAX_LUMINANCE_EXT:
+ if (!disp->Extensions.EXT_surface_SMPTE2086_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.max_luminance = val;
+ break;
+ case EGL_SMPTE2086_MIN_LUMINANCE_EXT:
+ if (!disp->Extensions.EXT_surface_SMPTE2086_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.min_luminance = val;
+ break;
+ case EGL_CTA861_3_MAX_CONTENT_LIGHT_LEVEL_EXT:
+ if (!disp->Extensions.EXT_surface_CTA861_3_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.max_cll = val;
+ break;
+ case EGL_CTA861_3_MAX_FRAME_AVERAGE_LEVEL_EXT:
+ if (!disp->Extensions.EXT_surface_CTA861_3_metadata) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+ surf->HdrMetadata.max_fall = val;
+ break;
case EGL_VG_COLORSPACE:
switch (val) {
case EGL_VG_COLORSPACE_sRGB:
err = EGL_BAD_ATTRIBUTE;
break;
}
- surf->RenderBuffer = val;
+ surf->RequestedRenderBuffer = val;
+ if (surf->Config->SurfaceType & EGL_MUTABLE_RENDER_BUFFER_BIT_KHR) {
+ /* Unlike normal EGLSurfaces, one with a mutable render buffer
+ * uses the application-chosen render buffer.
+ */
+ surf->ActiveRenderBuffer = val;
+ }
break;
case EGL_POST_SUB_BUFFER_SUPPORTED_NV:
- if (!dpy->Extensions.NV_post_sub_buffer ||
+ if (!disp->Extensions.NV_post_sub_buffer ||
type != EGL_WINDOW_BIT) {
err = EGL_BAD_ATTRIBUTE;
break;
break;
}
- tex_format = val;
switch (val) {
case EGL_TEXTURE_RGB:
case EGL_TEXTURE_RGBA:
break;
}
- tex_target = val;
switch (val) {
case EGL_TEXTURE_2D:
case EGL_NO_TEXTURE:
break;
}
- if (type == EGL_PBUFFER_BIT) {
- if ((tex_target == EGL_NO_TEXTURE && tex_format != EGL_NO_TEXTURE) ||
- (tex_format == EGL_NO_TEXTURE && tex_target != EGL_NO_TEXTURE)) {
- err = EGL_BAD_MATCH;
- }
- }
-
- if (err != EGL_SUCCESS) {
- _eglLog(_EGL_WARNING, "bad surface attribute 0x%04x", attr);
+ if (err != EGL_SUCCESS)
break;
+ }
+
+ if (err == EGL_SUCCESS && type == EGL_PBUFFER_BIT) {
+ if ((surf->TextureTarget == EGL_NO_TEXTURE && surf->TextureFormat != EGL_NO_TEXTURE) ||
+ (surf->TextureFormat == EGL_NO_TEXTURE && surf->TextureTarget != EGL_NO_TEXTURE)) {
+ attr = surf->TextureTarget == EGL_NO_TEXTURE ? EGL_TEXTURE_TARGET : EGL_TEXTURE_FORMAT;
+ err = EGL_BAD_MATCH;
}
}
+ if (err != EGL_SUCCESS)
+ _eglLog(_EGL_WARNING, "bad surface attribute 0x%04x", attr);
+
return err;
}
* \return EGL_TRUE if no errors, EGL_FALSE otherwise.
*/
EGLBoolean
-_eglInitSurface(_EGLSurface *surf, _EGLDisplay *dpy, EGLint type,
- _EGLConfig *conf, const EGLint *attrib_list)
+_eglInitSurface(_EGLSurface *surf, _EGLDisplay *disp, EGLint type,
+ _EGLConfig *conf, const EGLint *attrib_list,
+ void *native_surface)
{
const char *func;
EGLint renderBuffer = EGL_BACK_BUFFER;
- EGLint swapBehavior = EGL_BUFFER_PRESERVED;
+ EGLint swapBehavior = EGL_BUFFER_DESTROYED;
EGLint err;
+ /* Swap behavior can be preserved only if config supports this. */
+ if (conf->SurfaceType & EGL_SWAP_BEHAVIOR_PRESERVED_BIT)
+ swapBehavior = EGL_BUFFER_PRESERVED;
+
switch (type) {
case EGL_WINDOW_BIT:
func = "eglCreateWindowSurface";
return EGL_FALSE;
}
- if ((conf->SurfaceType & type) == 0) {
+ if ((conf->SurfaceType & type) == 0)
/* The config can't be used to create a surface of this type */
- _eglError(EGL_BAD_CONFIG, func);
- return EGL_FALSE;
- }
+ return _eglError(EGL_BAD_MATCH, func);
- _eglInitResource(&surf->Resource, sizeof(*surf), dpy);
+ _eglInitResource(&surf->Resource, sizeof(*surf), disp);
surf->Type = type;
surf->Config = conf;
+ surf->Lost = EGL_FALSE;
surf->Width = 0;
surf->Height = 0;
surf->TextureTarget = EGL_NO_TEXTURE;
surf->MipmapTexture = EGL_FALSE;
surf->LargestPbuffer = EGL_FALSE;
- surf->RenderBuffer = renderBuffer;
+ surf->RequestedRenderBuffer = renderBuffer;
+ surf->ActiveRenderBuffer = renderBuffer;
surf->VGAlphaFormat = EGL_VG_ALPHA_FORMAT_NONPRE;
surf->VGColorspace = EGL_VG_COLORSPACE_sRGB;
surf->GLColorspace = EGL_GL_COLORSPACE_LINEAR_KHR;
surf->AspectRatio = EGL_UNKNOWN;
surf->PostSubBufferSupportedNV = EGL_FALSE;
+ surf->SetDamageRegionCalled = EGL_FALSE;
+ surf->BufferAgeRead = EGL_FALSE;
/* the default swap interval is 1 */
- _eglClampSwapInterval(surf, 1);
+ surf->SwapInterval = 1;
+
+ surf->HdrMetadata.display_primary_r.x = EGL_DONT_CARE;
+ surf->HdrMetadata.display_primary_r.y = EGL_DONT_CARE;
+ surf->HdrMetadata.display_primary_g.x = EGL_DONT_CARE;
+ surf->HdrMetadata.display_primary_g.y = EGL_DONT_CARE;
+ surf->HdrMetadata.display_primary_b.x = EGL_DONT_CARE;
+ surf->HdrMetadata.display_primary_b.y = EGL_DONT_CARE;
+ surf->HdrMetadata.white_point.x = EGL_DONT_CARE;
+ surf->HdrMetadata.white_point.y = EGL_DONT_CARE;
+ surf->HdrMetadata.max_luminance = EGL_DONT_CARE;
+ surf->HdrMetadata.min_luminance = EGL_DONT_CARE;
+ surf->HdrMetadata.max_cll = EGL_DONT_CARE;
+ surf->HdrMetadata.max_fall = EGL_DONT_CARE;
err = _eglParseSurfaceAttribList(surf, attrib_list);
if (err != EGL_SUCCESS)
surf->Height = MIN2(surf->Height, _EGL_MAX_PBUFFER_HEIGHT);
}
+ surf->NativeSurface = native_surface;
+
return EGL_TRUE;
}
EGLBoolean
-_eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
+_eglQuerySurface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surface,
EGLint attribute, EGLint *value)
{
switch (attribute) {
*value = surface->SwapBehavior;
break;
case EGL_RENDER_BUFFER:
- *value = surface->RenderBuffer;
+ /* From the EGL_KHR_mutable_render_buffer spec (v12):
+ *
+ * Querying EGL_RENDER_BUFFER returns the buffer which client API
+ * rendering is requested to use. For a window surface, this is the
+ * attribute value specified when the surface was created or last set
+ * via eglSurfaceAttrib.
+ *
+ * In other words, querying a window surface returns the value most
+ * recently *requested* by the user.
+ *
+ * The paragraph continues in the EGL 1.5 spec (2014.08.27):
+ *
+ * For a pbuffer surface, it is always EGL_BACK_BUFFER . For a pixmap
+ * surface, it is always EGL_SINGLE_BUFFER . To determine the actual
+ * buffer being rendered to by a context, call eglQueryContext.
+ */
+ switch (surface->Type) {
+ default:
+ unreachable("bad EGLSurface type");
+ case EGL_WINDOW_BIT:
+ *value = surface->RequestedRenderBuffer;
+ break;
+ case EGL_PBUFFER_BIT:
+ *value = EGL_BACK_BUFFER;
+ break;
+ case EGL_PIXMAP_BIT:
+ *value = EGL_SINGLE_BUFFER;
+ break;
+ }
break;
case EGL_PIXEL_ASPECT_RATIO:
*value = surface->AspectRatio;
*value = surface->VGColorspace;
break;
case EGL_GL_COLORSPACE_KHR:
- if (!dpy->Extensions.KHR_gl_colorspace) {
- _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
- return EGL_FALSE;
- }
+ if (!disp->Extensions.KHR_gl_colorspace)
+ return _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
+
*value = surface->GLColorspace;
break;
case EGL_POST_SUB_BUFFER_SUPPORTED_NV:
*value = surface->PostSubBufferSupportedNV;
break;
case EGL_BUFFER_AGE_EXT:
- if (!dpy->Extensions.EXT_buffer_age) {
- _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
+ /* Both EXT_buffer_age and KHR_partial_update accept EGL_BUFFER_AGE_EXT.
+ * To be precise, the KHR one accepts EGL_BUFFER_AGE_KHR which is an
+ * alias with the same numeric value.
+ */
+ if (!disp->Extensions.EXT_buffer_age &&
+ !disp->Extensions.KHR_partial_update)
+ return _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
+
+ _EGLContext *ctx = _eglGetCurrentContext();
+ EGLint result = drv->API.QueryBufferAge(drv, disp, surface);
+ /* error happened */
+ if (result < 0)
return EGL_FALSE;
- }
- *value = drv->API.QueryBufferAge(drv, dpy, surface);
+ if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
+ ctx->DrawSurface != surface)
+ return _eglError(EGL_BAD_SURFACE, "eglQuerySurface");
+
+ *value = result;
+ surface->BufferAgeRead = EGL_TRUE;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_RX_EXT:
+ *value = surface->HdrMetadata.display_primary_r.x;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_RY_EXT:
+ *value = surface->HdrMetadata.display_primary_r.y;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_GX_EXT:
+ *value = surface->HdrMetadata.display_primary_g.x;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_GY_EXT:
+ *value = surface->HdrMetadata.display_primary_g.y;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_BX_EXT:
+ *value = surface->HdrMetadata.display_primary_b.x;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_BY_EXT:
+ *value = surface->HdrMetadata.display_primary_b.y;
+ break;
+ case EGL_SMPTE2086_WHITE_POINT_X_EXT:
+ *value = surface->HdrMetadata.white_point.x;
+ break;
+ case EGL_SMPTE2086_WHITE_POINT_Y_EXT:
+ *value = surface->HdrMetadata.white_point.y;
+ break;
+ case EGL_SMPTE2086_MAX_LUMINANCE_EXT:
+ *value = surface->HdrMetadata.max_luminance;
+ break;
+ case EGL_SMPTE2086_MIN_LUMINANCE_EXT:
+ *value = surface->HdrMetadata.min_luminance;
+ break;
+ case EGL_CTA861_3_MAX_CONTENT_LIGHT_LEVEL_EXT:
+ *value = surface->HdrMetadata.max_cll;
+ break;
+ case EGL_CTA861_3_MAX_FRAME_AVERAGE_LEVEL_EXT:
+ *value = surface->HdrMetadata.max_fall;
break;
default:
- _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
- return EGL_FALSE;
+ return _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface");
}
return EGL_TRUE;
* Default fallback routine - drivers might override this.
*/
EGLBoolean
-_eglSurfaceAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
+_eglSurfaceAttrib(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surface,
EGLint attribute, EGLint value)
{
EGLint confval;
break;
surface->MultisampleResolve = value;
break;
+ case EGL_RENDER_BUFFER:
+ if (!disp->Extensions.KHR_mutable_render_buffer) {
+ err = EGL_BAD_ATTRIBUTE;
+ break;
+ }
+
+ if (value != EGL_BACK_BUFFER && value != EGL_SINGLE_BUFFER) {
+ err = EGL_BAD_PARAMETER;
+ break;
+ }
+
+ /* From the EGL_KHR_mutable_render_buffer spec (v12):
+ *
+ * If attribute is EGL_RENDER_BUFFER, and the EGL_SURFACE_TYPE
+ * attribute of the EGLConfig used to create surface does not contain
+ * EGL_MUTABLE_RENDER_BUFFER_BIT_KHR, [...] an EGL_BAD_MATCH error is
+ * generated [...].
+ */
+ if (!(surface->Config->SurfaceType & EGL_MUTABLE_RENDER_BUFFER_BIT_KHR)) {
+ err = EGL_BAD_MATCH;
+ break;
+ }
+
+ surface->RequestedRenderBuffer = value;
+ break;
case EGL_SWAP_BEHAVIOR:
switch (value) {
case EGL_BUFFER_DESTROYED:
break;
surface->SwapBehavior = value;
break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_RX_EXT:
+ surface->HdrMetadata.display_primary_r.x = value;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_RY_EXT:
+ surface->HdrMetadata.display_primary_r.y = value;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_GX_EXT:
+ surface->HdrMetadata.display_primary_g.x = value;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_GY_EXT:
+ surface->HdrMetadata.display_primary_g.y = value;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_BX_EXT:
+ surface->HdrMetadata.display_primary_b.x = value;
+ break;
+ case EGL_SMPTE2086_DISPLAY_PRIMARY_BY_EXT:
+ surface->HdrMetadata.display_primary_b.y = value;
+ break;
+ case EGL_SMPTE2086_WHITE_POINT_X_EXT:
+ surface->HdrMetadata.white_point.x = value;
+ break;
+ case EGL_SMPTE2086_WHITE_POINT_Y_EXT:
+ surface->HdrMetadata.white_point.y = value;
+ break;
+ case EGL_SMPTE2086_MAX_LUMINANCE_EXT:
+ surface->HdrMetadata.max_luminance = value;
+ break;
+ case EGL_SMPTE2086_MIN_LUMINANCE_EXT:
+ surface->HdrMetadata.min_luminance = value;
+ break;
+ case EGL_CTA861_3_MAX_CONTENT_LIGHT_LEVEL_EXT:
+ surface->HdrMetadata.max_cll = value;
+ break;
+ case EGL_CTA861_3_MAX_FRAME_AVERAGE_LEVEL_EXT:
+ surface->HdrMetadata.max_fall = value;
+ break;
default:
err = EGL_BAD_ATTRIBUTE;
break;
EGLBoolean
-_eglBindTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
+_eglBindTexImage(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surface,
EGLint buffer)
{
EGLint texture_type = EGL_PBUFFER_BIT;
* Drivers must implement the real stuff.
*/
- if (dpy->Extensions.NOK_texture_from_pixmap)
+ if (disp->Extensions.NOK_texture_from_pixmap)
texture_type |= EGL_PIXMAP_BIT;
- if (!(surface->Type & texture_type)) {
- _eglError(EGL_BAD_SURFACE, "eglBindTexImage");
- return EGL_FALSE;
- }
+ if (!(surface->Type & texture_type))
+ return _eglError(EGL_BAD_SURFACE, "eglBindTexImage");
- if (surface->TextureFormat == EGL_NO_TEXTURE) {
- _eglError(EGL_BAD_MATCH, "eglBindTexImage");
- return EGL_FALSE;
- }
+ if (surface->TextureFormat == EGL_NO_TEXTURE)
+ return _eglError(EGL_BAD_MATCH, "eglBindTexImage");
- if (surface->TextureTarget == EGL_NO_TEXTURE) {
- _eglError(EGL_BAD_MATCH, "eglBindTexImage");
- return EGL_FALSE;
- }
+ if (surface->TextureTarget == EGL_NO_TEXTURE)
+ return _eglError(EGL_BAD_MATCH, "eglBindTexImage");
- if (buffer != EGL_BACK_BUFFER) {
- _eglError(EGL_BAD_PARAMETER, "eglBindTexImage");
- return EGL_FALSE;
- }
+ if (buffer != EGL_BACK_BUFFER)
+ return _eglError(EGL_BAD_PARAMETER, "eglBindTexImage");
surface->BoundToTexture = EGL_TRUE;
_eglReleaseTexImage(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
EGLint buffer)
{
- /* TODO: do basic error checking and return success/fail.
+ /* Just do basic error checking and return success/fail.
* Drivers must implement the real stuff.
*/
- return EGL_TRUE;
+ EGLint texture_type = EGL_PBUFFER_BIT;
+
+ if (surf == EGL_NO_SURFACE)
+ return _eglError(EGL_BAD_SURFACE, "eglReleaseTexImage");
+
+ if (!surf->BoundToTexture)
+ {
+ /* Not an error, simply nothing to do */
+ return EGL_TRUE;
+ }
+
+ if (surf->TextureFormat == EGL_NO_TEXTURE)
+ return _eglError(EGL_BAD_MATCH, "eglReleaseTexImage");
+
+ if (buffer != EGL_BACK_BUFFER)
+ return _eglError(EGL_BAD_PARAMETER, "eglReleaseTexImage");
+
+ if (disp->Extensions.NOK_texture_from_pixmap)
+ texture_type |= EGL_PIXMAP_BIT;
+
+ if (!(surf->Type & texture_type))
+ return _eglError(EGL_BAD_SURFACE, "eglReleaseTexImage");
+
+ surf->BoundToTexture = EGL_FALSE;
+
+ return EGL_TRUE;
}
EGLBoolean
-_eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
+_eglSwapInterval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
EGLint interval)
{
- _eglClampSwapInterval(surf, interval);
return EGL_TRUE;
}
+
+EGLBoolean
+_eglSurfaceHasMutableRenderBuffer(_EGLSurface *surf)
+{
+ return surf->Type == EGL_WINDOW_BIT &&
+ surf->Config &&
+ (surf->Config->SurfaceType & EGL_MUTABLE_RENDER_BUFFER_BIT_KHR);
+}
+
+EGLBoolean
+_eglSurfaceInSharedBufferMode(_EGLSurface *surf)
+{
+ return _eglSurfaceHasMutableRenderBuffer(surf) &&
+ surf->ActiveRenderBuffer == EGL_SINGLE_BUFFER;
+}