From 990bc3f015a4f8fce2eb918375defcd44980a845 Mon Sep 17 00:00:00 2001 From: marha Date: Fri, 8 Jun 2012 09:33:13 +0200 Subject: Used synchronise script to update files --- mesalib/src/mesa/main/viewport.c | 370 +++++++++++++++++++-------------------- 1 file changed, 185 insertions(+), 185 deletions(-) (limited to 'mesalib/src/mesa/main/viewport.c') diff --git a/mesalib/src/mesa/main/viewport.c b/mesalib/src/mesa/main/viewport.c index 9186d1bb8..a58697ab3 100644 --- a/mesalib/src/mesa/main/viewport.c +++ b/mesalib/src/mesa/main/viewport.c @@ -1,185 +1,185 @@ -/* - * Mesa 3-D graphics library - * Version: 7.5 - * - * Copyright (C) 2009 VMware, Inc. 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. - */ - - -/** - * \file viewport.c - * glViewport and glDepthRange functions. - */ - - -#include "context.h" -#include "macros.h" -#include "mtypes.h" -#include "viewport.h" - - -/** - * Set the viewport. - * \sa Called via glViewport() or display list execution. - * - * Flushes the vertices and calls _mesa_set_viewport() with the given - * parameters. - */ -void GLAPIENTRY -_mesa_Viewport(GLint x, GLint y, GLsizei width, GLsizei height) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _mesa_set_viewport(ctx, x, y, width, height); -} - - -/** - * Set new viewport parameters and update derived state (the _WindowMap - * matrix). Usually called from _mesa_Viewport(). - * - * \param ctx GL context. - * \param x, y coordinates of the lower left corner of the viewport rectangle. - * \param width width of the viewport rectangle. - * \param height height of the viewport rectangle. - */ -void -_mesa_set_viewport(struct gl_context *ctx, GLint x, GLint y, - GLsizei width, GLsizei height) -{ - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glViewport %d %d %d %d\n", x, y, width, height); - - if (width < 0 || height < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glViewport(%d, %d, %d, %d)", x, y, width, height); - return; - } - - /* clamp width and height to the implementation dependent range */ - width = MIN2(width, (GLsizei) ctx->Const.MaxViewportWidth); - height = MIN2(height, (GLsizei) ctx->Const.MaxViewportHeight); - - ctx->Viewport.X = x; - ctx->Viewport.Width = width; - ctx->Viewport.Y = y; - ctx->Viewport.Height = height; - ctx->NewState |= _NEW_VIEWPORT; - -#if 1 - /* XXX remove this someday. Currently the DRI drivers rely on - * the WindowMap matrix being up to date in the driver's Viewport - * and DepthRange functions. - */ - _math_matrix_viewport(&ctx->Viewport._WindowMap, - ctx->Viewport.X, ctx->Viewport.Y, - ctx->Viewport.Width, ctx->Viewport.Height, - ctx->Viewport.Near, ctx->Viewport.Far, - ctx->DrawBuffer->_DepthMaxF); -#endif - - if (ctx->Driver.Viewport) { - /* Many drivers will use this call to check for window size changes - * and reallocate the z/stencil/accum/etc buffers if needed. - */ - ctx->Driver.Viewport(ctx, x, y, width, height); - } -} - - -/** - * Called by glDepthRange - * - * \param nearval specifies the Z buffer value which should correspond to - * the near clip plane - * \param farval specifies the Z buffer value which should correspond to - * the far clip plane - */ -void GLAPIENTRY -_mesa_DepthRange(GLclampd nearval, GLclampd farval) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (MESA_VERBOSE&VERBOSE_API) - _mesa_debug(ctx, "glDepthRange %f %f\n", nearval, farval); - - if (ctx->Viewport.Near == nearval && - ctx->Viewport.Far == farval) - return; - - ctx->Viewport.Near = (GLfloat) CLAMP(nearval, 0.0, 1.0); - ctx->Viewport.Far = (GLfloat) CLAMP(farval, 0.0, 1.0); - ctx->NewState |= _NEW_VIEWPORT; - -#if 1 - /* XXX remove this someday. Currently the DRI drivers rely on - * the WindowMap matrix being up to date in the driver's Viewport - * and DepthRange functions. - */ - _math_matrix_viewport(&ctx->Viewport._WindowMap, - ctx->Viewport.X, ctx->Viewport.Y, - ctx->Viewport.Width, ctx->Viewport.Height, - ctx->Viewport.Near, ctx->Viewport.Far, - ctx->DrawBuffer->_DepthMaxF); -#endif - - if (ctx->Driver.DepthRange) { - ctx->Driver.DepthRange(ctx, nearval, farval); - } -} - -void GLAPIENTRY -_mesa_DepthRangef(GLclampf nearval, GLclampf farval) -{ - _mesa_DepthRange(nearval, farval); -} - -/** - * Initialize the context viewport attribute group. - * \param ctx the GL context. - */ -void _mesa_init_viewport(struct gl_context *ctx) -{ - GLfloat depthMax = 65535.0F; /* sorf of arbitrary */ - - /* Viewport group */ - ctx->Viewport.X = 0; - ctx->Viewport.Y = 0; - ctx->Viewport.Width = 0; - ctx->Viewport.Height = 0; - ctx->Viewport.Near = 0.0; - ctx->Viewport.Far = 1.0; - _math_matrix_ctr(&ctx->Viewport._WindowMap); - - _math_matrix_viewport(&ctx->Viewport._WindowMap, 0, 0, 0, 0, - 0.0F, 1.0F, depthMax); -} - - -/** - * Free the context viewport attribute group data. - * \param ctx the GL context. - */ -void _mesa_free_viewport_data(struct gl_context *ctx) -{ - _math_matrix_dtr(&ctx->Viewport._WindowMap); -} - +/* + * Mesa 3-D graphics library + * Version: 7.5 + * + * Copyright (C) 2009 VMware, Inc. 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. + */ + + +/** + * \file viewport.c + * glViewport and glDepthRange functions. + */ + + +#include "context.h" +#include "macros.h" +#include "mtypes.h" +#include "viewport.h" + + +/** + * Set the viewport. + * \sa Called via glViewport() or display list execution. + * + * Flushes the vertices and calls _mesa_set_viewport() with the given + * parameters. + */ +void GLAPIENTRY +_mesa_Viewport(GLint x, GLint y, GLsizei width, GLsizei height) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + _mesa_set_viewport(ctx, x, y, width, height); +} + + +/** + * Set new viewport parameters and update derived state (the _WindowMap + * matrix). Usually called from _mesa_Viewport(). + * + * \param ctx GL context. + * \param x, y coordinates of the lower left corner of the viewport rectangle. + * \param width width of the viewport rectangle. + * \param height height of the viewport rectangle. + */ +void +_mesa_set_viewport(struct gl_context *ctx, GLint x, GLint y, + GLsizei width, GLsizei height) +{ + if (MESA_VERBOSE & VERBOSE_API) + _mesa_debug(ctx, "glViewport %d %d %d %d\n", x, y, width, height); + + if (width < 0 || height < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glViewport(%d, %d, %d, %d)", x, y, width, height); + return; + } + + /* clamp width and height to the implementation dependent range */ + width = MIN2(width, (GLsizei) ctx->Const.MaxViewportWidth); + height = MIN2(height, (GLsizei) ctx->Const.MaxViewportHeight); + + ctx->Viewport.X = x; + ctx->Viewport.Width = width; + ctx->Viewport.Y = y; + ctx->Viewport.Height = height; + ctx->NewState |= _NEW_VIEWPORT; + +#if 1 + /* XXX remove this someday. Currently the DRI drivers rely on + * the WindowMap matrix being up to date in the driver's Viewport + * and DepthRange functions. + */ + _math_matrix_viewport(&ctx->Viewport._WindowMap, + ctx->Viewport.X, ctx->Viewport.Y, + ctx->Viewport.Width, ctx->Viewport.Height, + ctx->Viewport.Near, ctx->Viewport.Far, + ctx->DrawBuffer->_DepthMaxF); +#endif + + if (ctx->Driver.Viewport) { + /* Many drivers will use this call to check for window size changes + * and reallocate the z/stencil/accum/etc buffers if needed. + */ + ctx->Driver.Viewport(ctx, x, y, width, height); + } +} + + +/** + * Called by glDepthRange + * + * \param nearval specifies the Z buffer value which should correspond to + * the near clip plane + * \param farval specifies the Z buffer value which should correspond to + * the far clip plane + */ +void GLAPIENTRY +_mesa_DepthRange(GLclampd nearval, GLclampd farval) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (MESA_VERBOSE&VERBOSE_API) + _mesa_debug(ctx, "glDepthRange %f %f\n", nearval, farval); + + if (ctx->Viewport.Near == nearval && + ctx->Viewport.Far == farval) + return; + + ctx->Viewport.Near = (GLfloat) CLAMP(nearval, 0.0, 1.0); + ctx->Viewport.Far = (GLfloat) CLAMP(farval, 0.0, 1.0); + ctx->NewState |= _NEW_VIEWPORT; + +#if 1 + /* XXX remove this someday. Currently the DRI drivers rely on + * the WindowMap matrix being up to date in the driver's Viewport + * and DepthRange functions. + */ + _math_matrix_viewport(&ctx->Viewport._WindowMap, + ctx->Viewport.X, ctx->Viewport.Y, + ctx->Viewport.Width, ctx->Viewport.Height, + ctx->Viewport.Near, ctx->Viewport.Far, + ctx->DrawBuffer->_DepthMaxF); +#endif + + if (ctx->Driver.DepthRange) { + ctx->Driver.DepthRange(ctx, nearval, farval); + } +} + +void GLAPIENTRY +_mesa_DepthRangef(GLclampf nearval, GLclampf farval) +{ + _mesa_DepthRange(nearval, farval); +} + +/** + * Initialize the context viewport attribute group. + * \param ctx the GL context. + */ +void _mesa_init_viewport(struct gl_context *ctx) +{ + GLfloat depthMax = 65535.0F; /* sorf of arbitrary */ + + /* Viewport group */ + ctx->Viewport.X = 0; + ctx->Viewport.Y = 0; + ctx->Viewport.Width = 0; + ctx->Viewport.Height = 0; + ctx->Viewport.Near = 0.0; + ctx->Viewport.Far = 1.0; + _math_matrix_ctr(&ctx->Viewport._WindowMap); + + _math_matrix_viewport(&ctx->Viewport._WindowMap, 0, 0, 0, 0, + 0.0F, 1.0F, depthMax); +} + + +/** + * Free the context viewport attribute group data. + * \param ctx the GL context. + */ +void _mesa_free_viewport_data(struct gl_context *ctx) +{ + _math_matrix_dtr(&ctx->Viewport._WindowMap); +} + -- cgit v1.2.3