/* OpenGL 2.0 */
void GLAPIENTRY
_mesa_StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)
{
GET_CURRENT_CONTEXT(ctx);
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glStencilFuncSeparate()\n");
if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
_mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(face)");
return;
}
if (!validate_stencil_func(ctx, func)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(func)");
return;
}
FLUSH_VERTICES(ctx, _NEW_STENCIL);
if (face != GL_BACK) {
/* set front */
ctx->Stencil.Function[0] = func;
ctx->Stencil.Ref[0] = ref;
ctx->Stencil.ValueMask[0] = mask;
}
if (face != GL_FRONT) {
/* set back */
ctx->Stencil.Function[1] = func;
ctx->Stencil.Ref[1] = ref;
ctx->Stencil.ValueMask[1] = mask;
}
if (ctx->Driver.StencilFuncSeparate) {
ctx->Driver.StencilFuncSeparate(ctx, face, func, ref, mask);
}
}
/**
* Set the function and reference value for stencil testing.
*
* \param func test function.
* \param ref reference value.
* \param mask bitmask.
*
* \sa glStencilFunc().
*
* Verifies the parameters and updates the respective values in
* __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the
* driver via the dd_function_table::StencilFunc callback.
*/
void GLAPIENTRY
_mesa_StencilFunc( GLenum func, GLint ref, GLuint mask )
{
GET_CURRENT_CONTEXT(ctx);
const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
const GLint face = ctx->Stencil.ActiveFace;
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glStencilFunc()\n");
if (!validate_stencil_func(ctx, func)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glStencilFunc(func)");
return;
}
ref = CLAMP( ref, 0, stencilMax );
if (face != 0) {
if (ctx->Stencil.Function[face] == func &&
ctx->Stencil.ValueMask[face] == mask &&
ctx->Stencil.Ref[face] == ref)
return;
FLUSH_VERTICES(ctx, _NEW_STENCIL);
ctx->Stencil.Function[face] = func;
ctx->Stencil.Ref[face] = ref;
ctx->Stencil.ValueMask[face] = mask;
/* Only propagate the change to the driver if EXT_stencil_two_side
* is enabled.
*/
if (ctx->Driver.StencilFuncSeparate && ctx->Stencil.TestTwoSide) {
ctx->Driver.StencilFuncSeparate(ctx, GL_BACK, func, ref, mask);
}
}
else {
/* set both front and back state */
if (ctx->Stencil.Function[0] == func &&
ctx->Stencil.Function[1] == func &&
ctx->Stencil.ValueMask[0] == mask &&
ctx->Stencil.ValueMask[1] == mask &&
ctx->Stencil.Ref[0] == ref &&
ctx->Stencil.Ref[1] == ref)
return;
FLUSH_VERTICES(ctx, _NEW_STENCIL);
ctx->Stencil.Function[0] = ctx->Stencil.Function[1] = func;
ctx->Stencil.Ref[0] = ctx->Stencil.Ref[1] = ref;
ctx->Stencil.ValueMask[0] = ctx->Stencil.ValueMask[1] = mask;
if (ctx->Driver.StencilFuncSeparate) {
ctx->Driver.StencilFuncSeparate(ctx,
((ctx->Stencil.TestTwoSide)
? GL_FRONT : GL_FRONT_AND_BACK),
func, ref, mask);
}
}
}
/**
* Set the function and reference value for stencil testing.
*
* \param frontfunc front test function.
* \param backfunc back test function.
* \param ref front and back reference value.
* \param mask front and back bitmask.
*
* \sa glStencilFunc().
*
* Verifies the parameters and updates the respective values in
* __struct gl_contextRec::Stencil. On change flushes the vertices and notifies the
* driver via the dd_function_table::StencilFunc callback.
*/
void GLAPIENTRY
_mesa_StencilFuncSeparateATI( GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask )
{
GET_CURRENT_CONTEXT(ctx);
const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glStencilFuncSeparateATI()\n");
if (!validate_stencil_func(ctx, frontfunc)) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glStencilFuncSeparateATI(frontfunc)");
return;
}
if (!validate_stencil_func(ctx, backfunc)) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glStencilFuncSeparateATI(backfunc)");
return;
}
ref = CLAMP( ref, 0, stencilMax );
/* set both front and back state */
if (ctx->Stencil.Function[0] == frontfunc &&
ctx->Stencil.Function[1] == backfunc &&
ctx->Stencil.ValueMask[0] == mask &&
ctx->Stencil.ValueMask[1] == mask &&
ctx->Stencil.Ref[0] == ref &&
ctx->Stencil.Ref[1] == ref)
return;
FLUSH_VERTICES(ctx, _NEW_STENCIL);
ctx->Stencil.Function[0] = frontfunc;
ctx->Stencil.Function[1] = backfunc;
ctx->Stencil.Ref[0] = ctx->Stencil.Ref[1] = ref;
ctx->Stencil.ValueMask[0] = ctx->Stencil.ValueMask[1] = mask;
if (ctx->Driver.StencilFuncSeparate) {
ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
frontfunc, ref, mask);
ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
backfunc, ref, mask);
}
}
/* OpenGL 2.0 */
void GLAPIENTRY
_mesa_StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)
{
GET_CURRENT_CONTEXT(ctx);
const GLint stencilMax = (1 << ctx->DrawBuffer->Visual.stencilBits) - 1;
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glStencilFuncSeparate()\n");
if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) {
_mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(face)");
return;
}
if (!validate_stencil_func(ctx, func)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(func)");
return;
}
ref = CLAMP(ref, 0, stencilMax);
FLUSH_VERTICES(ctx, _NEW_STENCIL);
if (face != GL_BACK) {
/* set front */
ctx->Stencil.Function[0] = func;
ctx->Stencil.Ref[0] = ref;
ctx->Stencil.ValueMask[0] = mask;
}
if (face != GL_FRONT) {
/* set back */
ctx->Stencil.Function[1] = func;
ctx->Stencil.Ref[1] = ref;
ctx->Stencil.ValueMask[1] = mask;
}
if (ctx->Driver.StencilFuncSeparate) {
ctx->Driver.StencilFuncSeparate(ctx, face, func, ref, mask);
}
}
