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-rw-r--r--mesalib/src/mesa/swrast/swrast.h474
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
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