diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/stencil.c')
-rw-r--r-- | nx-X11/extras/Mesa/src/mesa/main/stencil.c | 466 |
1 files changed, 0 insertions, 466 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/stencil.c b/nx-X11/extras/Mesa/src/mesa/main/stencil.c deleted file mode 100644 index dfda4aa8f..000000000 --- a/nx-X11/extras/Mesa/src/mesa/main/stencil.c +++ /dev/null @@ -1,466 +0,0 @@ -/** - * \file stencil.c - * Stencil operations. - */ - -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "imports.h" -#include "context.h" -#include "depth.h" -#include "macros.h" -#include "stencil.h" -#include "mtypes.h" -#include "enable.h" - - -/** - * Set the clear value for the stencil buffer. - * - * \param s clear value. - * - * \sa glClearStencil(). - * - * Updates gl_stencil_attrib::Clear. On change - * flushes the vertices and notifies the driver via - * the dd_function_table::ClearStencil callback. - */ -void GLAPIENTRY -_mesa_ClearStencil( GLint s ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (ctx->Stencil.Clear == (GLstencil) s) - return; - - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.Clear = (GLstencil) s; - - if (ctx->Driver.ClearStencil) { - (*ctx->Driver.ClearStencil)( ctx, s ); - } -} - - -/** - * 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 - * __GLcontextRec::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 face = ctx->Stencil.ActiveFace; - GLint maxref; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (func) { - case GL_NEVER: - case GL_LESS: - case GL_LEQUAL: - case GL_GREATER: - case GL_GEQUAL: - case GL_EQUAL: - case GL_NOTEQUAL: - case GL_ALWAYS: - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glStencilFunc" ); - return; - } - - maxref = (1 << STENCIL_BITS) - 1; - ref = (GLstencil) CLAMP( ref, 0, maxref ); - - if (ctx->Stencil.Function[face] == func && - ctx->Stencil.ValueMask[face] == (GLstencil) 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] = (GLstencil) mask; - - if (ctx->Driver.StencilFunc) { - (*ctx->Driver.StencilFunc)( ctx, func, ref, mask ); - } -} - - -/** - * Set the stencil writing mask. - * - * \param mask bit-mask to enable/disable writing of individual bits in the - * stencil planes. - * - * \sa glStencilMask(). - * - * Updates gl_stencil_attrib::WriteMask. On change flushes the vertices and - * notifies the driver via the dd_function_table::StencilMask callback. - */ -void GLAPIENTRY -_mesa_StencilMask( GLuint mask ) -{ - GET_CURRENT_CONTEXT(ctx); - const GLint face = ctx->Stencil.ActiveFace; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (ctx->Stencil.WriteMask[face] == (GLstencil) mask) - return; - - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.WriteMask[face] = (GLstencil) mask; - - if (ctx->Driver.StencilMask) { - (*ctx->Driver.StencilMask)( ctx, mask ); - } -} - - -/** - * Set the stencil test actions. - * - * \param fail action to take when stencil test fails. - * \param zfail action to take when stencil test passes, but the depth test fails. - * \param zpass action to take when stencil test passes and the depth test - * passes (or depth testing is not enabled). - * - * \sa glStencilOp(). - * - * Verifies the parameters and updates the respective fields in - * __GLcontextRec::Stencil. On change flushes the vertices and notifies the - * driver via the dd_function_table::StencilOp callback. - */ -void GLAPIENTRY -_mesa_StencilOp(GLenum fail, GLenum zfail, GLenum zpass) -{ - GET_CURRENT_CONTEXT(ctx); - const GLint face = ctx->Stencil.ActiveFace; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - switch (fail) { - case GL_KEEP: - case GL_ZERO: - case GL_REPLACE: - case GL_INCR: - case GL_DECR: - case GL_INVERT: - break; - case GL_INCR_WRAP_EXT: - case GL_DECR_WRAP_EXT: - if (ctx->Extensions.EXT_stencil_wrap) { - break; - } - /* FALL-THROUGH */ - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp"); - return; - } - switch (zfail) { - case GL_KEEP: - case GL_ZERO: - case GL_REPLACE: - case GL_INCR: - case GL_DECR: - case GL_INVERT: - break; - case GL_INCR_WRAP_EXT: - case GL_DECR_WRAP_EXT: - if (ctx->Extensions.EXT_stencil_wrap) { - break; - } - /* FALL-THROUGH */ - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp"); - return; - } - switch (zpass) { - case GL_KEEP: - case GL_ZERO: - case GL_REPLACE: - case GL_INCR: - case GL_DECR: - case GL_INVERT: - break; - case GL_INCR_WRAP_EXT: - case GL_DECR_WRAP_EXT: - if (ctx->Extensions.EXT_stencil_wrap) { - break; - } - /* FALL-THROUGH */ - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOp"); - return; - } - - if (ctx->Stencil.ZFailFunc[face] == zfail && - ctx->Stencil.ZPassFunc[face] == zpass && - ctx->Stencil.FailFunc[face] == fail) - return; - - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.ZFailFunc[face] = zfail; - ctx->Stencil.ZPassFunc[face] = zpass; - ctx->Stencil.FailFunc[face] = fail; - - if (ctx->Driver.StencilOp) { - (*ctx->Driver.StencilOp)(ctx, fail, zfail, zpass); - } -} - - - -#if _HAVE_FULL_GL -/* GL_EXT_stencil_two_side */ -void GLAPIENTRY -_mesa_ActiveStencilFaceEXT(GLenum face) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (face == GL_FRONT || face == GL_BACK) { - FLUSH_VERTICES(ctx, _NEW_STENCIL); - ctx->Stencil.ActiveFace = (face == GL_FRONT) ? 0 : 1; - } - - if (ctx->Driver.ActiveStencilFace) { - (*ctx->Driver.ActiveStencilFace)( ctx, (GLuint) ctx->Stencil.ActiveFace ); - } -} -#endif - - - -/** - * OpenGL 2.0 function. - * \todo Make StencilOp() call this function. And eventually remove the - * ctx->Driver.StencilOp function and use ctx->Driver.StencilOpSeparate - * instead. - */ -void GLAPIENTRY -_mesa_StencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(face)"); - return; - } - - switch (fail) { - case GL_KEEP: - case GL_ZERO: - case GL_REPLACE: - case GL_INCR: - case GL_DECR: - case GL_INVERT: - break; - case GL_INCR_WRAP_EXT: - case GL_DECR_WRAP_EXT: - if (ctx->Extensions.EXT_stencil_wrap) { - break; - } - /* FALL-THROUGH */ - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(fail)"); - return; - } - switch (zfail) { - case GL_KEEP: - case GL_ZERO: - case GL_REPLACE: - case GL_INCR: - case GL_DECR: - case GL_INVERT: - break; - case GL_INCR_WRAP_EXT: - case GL_DECR_WRAP_EXT: - if (ctx->Extensions.EXT_stencil_wrap) { - break; - } - /* FALL-THROUGH */ - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zfail)"); - return; - } - switch (zpass) { - case GL_KEEP: - case GL_ZERO: - case GL_REPLACE: - case GL_INCR: - case GL_DECR: - case GL_INVERT: - break; - case GL_INCR_WRAP_EXT: - case GL_DECR_WRAP_EXT: - if (ctx->Extensions.EXT_stencil_wrap) { - break; - } - /* FALL-THROUGH */ - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilOpSeparate(zpass)"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_STENCIL); - - if (face == GL_FRONT || face == GL_FRONT_AND_BACK) { - ctx->Stencil.FailFunc[0] = fail; - ctx->Stencil.ZFailFunc[0] = zfail; - ctx->Stencil.ZPassFunc[0] = zpass; - } - if (face == GL_BACK || face == GL_FRONT_AND_BACK) { - ctx->Stencil.FailFunc[1] = fail; - ctx->Stencil.ZFailFunc[1] = zfail; - ctx->Stencil.ZPassFunc[1] = zpass; - } - - if (ctx->Driver.StencilOpSeparate) { - ctx->Driver.StencilOpSeparate(ctx, face, fail, zfail, zpass); - } -} - - -/* OpenGL 2.0 */ -void GLAPIENTRY -_mesa_StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask) -{ - GET_CURRENT_CONTEXT(ctx); - GLint maxref; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(face)"); - return; - } - - switch (func) { - case GL_NEVER: - case GL_LESS: - case GL_LEQUAL: - case GL_GREATER: - case GL_GEQUAL: - case GL_EQUAL: - case GL_NOTEQUAL: - case GL_ALWAYS: - break; - default: - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilFuncSeparate(func)"); - return; - } - - maxref = (1 << STENCIL_BITS) - 1; - ref = (GLstencil) CLAMP(ref, 0, maxref); - - FLUSH_VERTICES(ctx, _NEW_STENCIL); - - if (face == GL_FRONT || face == GL_FRONT_AND_BACK) { - ctx->Stencil.Function[0] = func; - ctx->Stencil.Ref[0] = ref; - ctx->Stencil.ValueMask[0] = (GLstencil) mask; - } - if (face == GL_BACK || face == GL_FRONT_AND_BACK) { - ctx->Stencil.Function[1] = func; - ctx->Stencil.Ref[1] = ref; - ctx->Stencil.ValueMask[1] = (GLstencil) mask; - } - - if (ctx->Driver.StencilFuncSeparate) { - ctx->Driver.StencilFuncSeparate(ctx, face, func, ref, mask); - } -} - - -/* OpenGL 2.0 */ -void GLAPIENTRY -_mesa_StencilMaskSeparate(GLenum face, GLuint mask) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (face != GL_FRONT && face != GL_BACK && face != GL_FRONT_AND_BACK) { - _mesa_error(ctx, GL_INVALID_ENUM, "glStencilaMaskSeparate(face)"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_STENCIL); - - if (face == GL_FRONT || face == GL_FRONT_AND_BACK) { - ctx->Stencil.WriteMask[0] = (GLstencil) mask; - } - if (face == GL_BACK || face == GL_FRONT_AND_BACK) { - ctx->Stencil.WriteMask[1] = (GLstencil) mask; - } - - if (ctx->Driver.StencilMaskSeparate) { - ctx->Driver.StencilMaskSeparate(ctx, face, mask); - } -} - - -/** - * Initialize the context stipple state. - * - * \param ctx GL context. - * - * Initializes __GLcontextRec::Stencil attribute group. - */ -void _mesa_init_stencil( GLcontext * ctx ) -{ - - /* Stencil group */ - ctx->Stencil.Enabled = GL_FALSE; - ctx->Stencil.TestTwoSide = GL_FALSE; - ctx->Stencil.ActiveFace = 0; /* 0 = GL_FRONT, 1 = GL_BACK */ - ctx->Stencil.Function[0] = GL_ALWAYS; - ctx->Stencil.Function[1] = GL_ALWAYS; - ctx->Stencil.FailFunc[0] = GL_KEEP; - ctx->Stencil.FailFunc[1] = GL_KEEP; - ctx->Stencil.ZPassFunc[0] = GL_KEEP; - ctx->Stencil.ZPassFunc[1] = GL_KEEP; - ctx->Stencil.ZFailFunc[0] = GL_KEEP; - ctx->Stencil.ZFailFunc[1] = GL_KEEP; - ctx->Stencil.Ref[0] = 0; - ctx->Stencil.Ref[1] = 0; - ctx->Stencil.ValueMask[0] = STENCIL_MAX; - ctx->Stencil.ValueMask[1] = STENCIL_MAX; - ctx->Stencil.WriteMask[0] = STENCIL_MAX; - ctx->Stencil.WriteMask[1] = STENCIL_MAX; - ctx->Stencil.Clear = 0; -} |