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author | marha <marha@users.sourceforge.net> | 2011-06-14 08:12:46 +0200 |
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committer | marha <marha@users.sourceforge.net> | 2011-06-14 08:12:46 +0200 |
commit | 4d74e36f359d22b50302c82a922b79ac24dd3e23 (patch) | |
tree | fb8a1645c35cdbe7ac484fbd240c0c9993750b7c /mesalib/src/mesa/swrast/swrast.h | |
parent | f4babb3a422e27cd33fba36f7a21eb67b7dee25d (diff) | |
download | vcxsrv-4d74e36f359d22b50302c82a922b79ac24dd3e23.tar.gz vcxsrv-4d74e36f359d22b50302c82a922b79ac24dd3e23.tar.bz2 vcxsrv-4d74e36f359d22b50302c82a922b79ac24dd3e23.zip |
libxcb mesa xkeyboard-config git update 14 June 2011
Diffstat (limited to 'mesalib/src/mesa/swrast/swrast.h')
-rw-r--r-- | mesalib/src/mesa/swrast/swrast.h | 474 |
1 files changed, 242 insertions, 232 deletions
diff --git a/mesalib/src/mesa/swrast/swrast.h b/mesalib/src/mesa/swrast/swrast.h index 2db536c7b..27b74c324 100644 --- a/mesalib/src/mesa/swrast/swrast.h +++ b/mesalib/src/mesa/swrast/swrast.h @@ -1,232 +1,242 @@ -/*
- * Mesa 3-D graphics library
- * Version: 6.5
- *
- * Copyright (C) 1999-2006 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.
- *
- */
-
-/**
- * \file swrast/swrast.h
- * \brief Public interface to the software rasterization functions.
- * \author Keith Whitwell <keith@tungstengraphics.com>
- */
-
-#ifndef SWRAST_H
-#define SWRAST_H
-
-#include "main/mtypes.h"
-
-/**
- * \struct SWvertex
- * \brief Data-structure to handle vertices in the software rasterizer.
- *
- * The software rasterizer now uses this format for vertices. Thus a
- * 'RasterSetup' stage or other translation is required between the
- * tnl module and the swrast rasterization functions. This serves to
- * isolate the swrast module from the internals of the tnl module, and
- * improve its usefulness as a fallback mechanism for hardware
- * drivers.
- *
- * wpos = attr[FRAG_ATTRIB_WPOS] and MUST BE THE FIRST values in the
- * vertex because of the tnl clipping code.
-
- * wpos[0] and [1] are the screen-coords of SWvertex.
- * wpos[2] is the z-buffer coord (if 16-bit Z buffer, in range [0,65535]).
- * wpos[3] is 1/w where w is the clip-space W coord. This is the value
- * that clip{XYZ} were multiplied by to get ndc{XYZ}.
- *
- * Full software drivers:
- * - Register the rastersetup and triangle functions from
- * utils/software_helper.
- * - On statechange, update the rasterization pointers in that module.
- *
- * Rasterization hardware drivers:
- * - Keep native rastersetup.
- * - Implement native twoside,offset and unfilled triangle setup.
- * - Implement a translator from native vertices to swrast vertices.
- * - On partial fallback (mix of accelerated and unaccelerated
- * prims), call a pass-through function which translates native
- * vertices to SWvertices and calls the appropriate swrast function.
- * - On total fallback (vertex format insufficient for state or all
- * primitives unaccelerated), hook in swrast_setup instead.
- */
-typedef struct {
- GLfloat attrib[FRAG_ATTRIB_MAX][4];
- GLchan color[4]; /** integer color */
- GLfloat pointSize;
-} SWvertex;
-
-
-#define FRAG_ATTRIB_CI FRAG_ATTRIB_COL0
-
-
-struct swrast_device_driver;
-
-
-/* These are the public-access functions exported from swrast.
- */
-
-extern GLboolean
-_swrast_CreateContext( struct gl_context *ctx );
-
-extern void
-_swrast_DestroyContext( struct gl_context *ctx );
-
-/* Get a (non-const) reference to the device driver struct for swrast.
- */
-extern struct swrast_device_driver *
-_swrast_GetDeviceDriverReference( struct gl_context *ctx );
-
-extern void
-_swrast_Bitmap( struct gl_context *ctx,
- GLint px, GLint py,
- GLsizei width, GLsizei height,
- const struct gl_pixelstore_attrib *unpack,
- const GLubyte *bitmap );
-
-extern void
-_swrast_CopyPixels( struct gl_context *ctx,
- GLint srcx, GLint srcy,
- GLint destx, GLint desty,
- GLsizei width, GLsizei height,
- GLenum type );
-
-extern void
-_swrast_DrawPixels( struct gl_context *ctx,
- GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid *pixels );
-
-extern void
-_swrast_ReadPixels( struct gl_context *ctx,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- GLvoid *pixels );
-
-extern void
-_swrast_BlitFramebuffer(struct gl_context *ctx,
- GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
- GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
- GLbitfield mask, GLenum filter);
-
-extern void
-_swrast_Clear(struct gl_context *ctx, GLbitfield buffers);
-
-extern void
-_swrast_Accum(struct gl_context *ctx, GLenum op, GLfloat value);
-
-
-
-/* Reset the stipple counter
- */
-extern void
-_swrast_ResetLineStipple( struct gl_context *ctx );
-
-/**
- * Indicates front/back facing for subsequent points/lines when drawing
- * unfilled polygons. Needed for two-side stencil.
- */
-extern void
-_swrast_SetFacing(struct gl_context *ctx, GLuint facing);
-
-/* These will always render the correct point/line/triangle for the
- * current state.
- *
- * For flatshaded primitives, the provoking vertex is the final one.
- */
-extern void
-_swrast_Point( struct gl_context *ctx, const SWvertex *v );
-
-extern void
-_swrast_Line( struct gl_context *ctx, const SWvertex *v0, const SWvertex *v1 );
-
-extern void
-_swrast_Triangle( struct gl_context *ctx, const SWvertex *v0,
- const SWvertex *v1, const SWvertex *v2 );
-
-extern void
-_swrast_Quad( struct gl_context *ctx,
- const SWvertex *v0, const SWvertex *v1,
- const SWvertex *v2, const SWvertex *v3);
-
-extern void
-_swrast_flush( struct gl_context *ctx );
-
-extern void
-_swrast_render_primitive( struct gl_context *ctx, GLenum mode );
-
-extern void
-_swrast_render_start( struct gl_context *ctx );
-
-extern void
-_swrast_render_finish( struct gl_context *ctx );
-
-/* Tell the software rasterizer about core state changes.
- */
-extern void
-_swrast_InvalidateState( struct gl_context *ctx, GLbitfield new_state );
-
-/* Configure software rasterizer to match hardware rasterizer characteristics:
- */
-extern void
-_swrast_allow_vertex_fog( struct gl_context *ctx, GLboolean value );
-
-extern void
-_swrast_allow_pixel_fog( struct gl_context *ctx, GLboolean value );
-
-/* Debug:
- */
-extern void
-_swrast_print_vertex( struct gl_context *ctx, const SWvertex *v );
-
-
-
-extern void
-_swrast_eject_texture_images(struct gl_context *ctx);
-
-
-
-/**
- * The driver interface for the software rasterizer.
- * XXX this may go away.
- * We may move these functions to ctx->Driver.RenderStart, RenderEnd.
- */
-struct swrast_device_driver {
- /*
- * These are called before and after accessing renderbuffers during
- * software rasterization.
- *
- * These are a suitable place for grabbing/releasing hardware locks.
- *
- * NOTE: The swrast triangle/line/point routines *DO NOT* call
- * these functions. Locking in that case must be organized by the
- * driver by other mechanisms.
- */
- void (*SpanRenderStart)(struct gl_context *ctx);
- void (*SpanRenderFinish)(struct gl_context *ctx);
-};
-
-
-
-#endif
+/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2006 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. + * + */ + +/** + * \file swrast/swrast.h + * \brief Public interface to the software rasterization functions. + * \author Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef SWRAST_H +#define SWRAST_H + +#include "main/mtypes.h" + +/** + * \struct SWvertex + * \brief Data-structure to handle vertices in the software rasterizer. + * + * The software rasterizer now uses this format for vertices. Thus a + * 'RasterSetup' stage or other translation is required between the + * tnl module and the swrast rasterization functions. This serves to + * isolate the swrast module from the internals of the tnl module, and + * improve its usefulness as a fallback mechanism for hardware + * drivers. + * + * wpos = attr[FRAG_ATTRIB_WPOS] and MUST BE THE FIRST values in the + * vertex because of the tnl clipping code. + + * wpos[0] and [1] are the screen-coords of SWvertex. + * wpos[2] is the z-buffer coord (if 16-bit Z buffer, in range [0,65535]). + * wpos[3] is 1/w where w is the clip-space W coord. This is the value + * that clip{XYZ} were multiplied by to get ndc{XYZ}. + * + * Full software drivers: + * - Register the rastersetup and triangle functions from + * utils/software_helper. + * - On statechange, update the rasterization pointers in that module. + * + * Rasterization hardware drivers: + * - Keep native rastersetup. + * - Implement native twoside,offset and unfilled triangle setup. + * - Implement a translator from native vertices to swrast vertices. + * - On partial fallback (mix of accelerated and unaccelerated + * prims), call a pass-through function which translates native + * vertices to SWvertices and calls the appropriate swrast function. + * - On total fallback (vertex format insufficient for state or all + * primitives unaccelerated), hook in swrast_setup instead. + */ +typedef struct { + GLfloat attrib[FRAG_ATTRIB_MAX][4]; + GLchan color[4]; /** integer color */ + GLfloat pointSize; +} SWvertex; + + +#define FRAG_ATTRIB_CI FRAG_ATTRIB_COL0 + + +struct swrast_device_driver; + + +/* These are the public-access functions exported from swrast. + */ + +extern GLboolean +_swrast_CreateContext( struct gl_context *ctx ); + +extern void +_swrast_DestroyContext( struct gl_context *ctx ); + +/* Get a (non-const) reference to the device driver struct for swrast. + */ +extern struct swrast_device_driver * +_swrast_GetDeviceDriverReference( struct gl_context *ctx ); + +extern void +_swrast_Bitmap( struct gl_context *ctx, + GLint px, GLint py, + GLsizei width, GLsizei height, + const struct gl_pixelstore_attrib *unpack, + const GLubyte *bitmap ); + +extern void +_swrast_CopyPixels( struct gl_context *ctx, + GLint srcx, GLint srcy, + GLint destx, GLint desty, + GLsizei width, GLsizei height, + GLenum type ); + +extern void +_swrast_DrawPixels( struct gl_context *ctx, + GLint x, GLint y, + GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + const GLvoid *pixels ); + +extern void +_swrast_ReadPixels( struct gl_context *ctx, + GLint x, GLint y, GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + GLvoid *pixels ); + +extern void +_swrast_BlitFramebuffer(struct gl_context *ctx, + GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, + GLbitfield mask, GLenum filter); + +extern void +_swrast_Clear(struct gl_context *ctx, GLbitfield buffers); + +extern void +_swrast_Accum(struct gl_context *ctx, GLenum op, GLfloat value); + + + +/* Reset the stipple counter + */ +extern void +_swrast_ResetLineStipple( struct gl_context *ctx ); + +/** + * Indicates front/back facing for subsequent points/lines when drawing + * unfilled polygons. Needed for two-side stencil. + */ +extern void +_swrast_SetFacing(struct gl_context *ctx, GLuint facing); + +/* These will always render the correct point/line/triangle for the + * current state. + * + * For flatshaded primitives, the provoking vertex is the final one. + */ +extern void +_swrast_Point( struct gl_context *ctx, const SWvertex *v ); + +extern void +_swrast_Line( struct gl_context *ctx, const SWvertex *v0, const SWvertex *v1 ); + +extern void +_swrast_Triangle( struct gl_context *ctx, const SWvertex *v0, + const SWvertex *v1, const SWvertex *v2 ); + +extern void +_swrast_Quad( struct gl_context *ctx, + const SWvertex *v0, const SWvertex *v1, + const SWvertex *v2, const SWvertex *v3); + +extern void +_swrast_flush( struct gl_context *ctx ); + +extern void +_swrast_render_primitive( struct gl_context *ctx, GLenum mode ); + +extern void +_swrast_render_start( struct gl_context *ctx ); + +extern void +_swrast_render_finish( struct gl_context *ctx ); + +/* Tell the software rasterizer about core state changes. + */ +extern void +_swrast_InvalidateState( struct gl_context *ctx, GLbitfield new_state ); + +/* Configure software rasterizer to match hardware rasterizer characteristics: + */ +extern void +_swrast_allow_vertex_fog( struct gl_context *ctx, GLboolean value ); + +extern void +_swrast_allow_pixel_fog( struct gl_context *ctx, GLboolean value ); + +/* Debug: + */ +extern void +_swrast_print_vertex( struct gl_context *ctx, const SWvertex *v ); + + + +extern void +_swrast_eject_texture_images(struct gl_context *ctx); + + +extern void +_swrast_render_texture(struct gl_context *ctx, + struct gl_framebuffer *fb, + struct gl_renderbuffer_attachment *att); + +extern void +_swrast_finish_render_texture(struct gl_context *ctx, + struct gl_renderbuffer_attachment *att); + + + +/** + * The driver interface for the software rasterizer. + * XXX this may go away. + * We may move these functions to ctx->Driver.RenderStart, RenderEnd. + */ +struct swrast_device_driver { + /* + * These are called before and after accessing renderbuffers during + * software rasterization. + * + * These are a suitable place for grabbing/releasing hardware locks. + * + * NOTE: The swrast triangle/line/point routines *DO NOT* call + * these functions. Locking in that case must be organized by the + * driver by other mechanisms. + */ + void (*SpanRenderStart)(struct gl_context *ctx); + void (*SpanRenderFinish)(struct gl_context *ctx); +}; + + + +#endif |