/*
* Mesa 3-D graphics library
- * Version: 6.3
+ * Version: 6.5
*
- * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
+ * 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"),
#ifndef SWRAST_H
#define SWRAST_H
-#include "mtypes.h"
+#include "main/mtypes.h"
+#include "swrast/s_chan.h"
+
+
+/**
+ * If non-zero use GLdouble for walking triangle edges, for better accuracy.
+ */
+#define TRIANGLE_WALK_DOUBLE 0
+
+
+/**
+ * Bits per depth buffer value (max is 32).
+ */
+#ifndef DEFAULT_SOFTWARE_DEPTH_BITS
+#define DEFAULT_SOFTWARE_DEPTH_BITS 16
+#endif
+/** Depth buffer data type */
+#if DEFAULT_SOFTWARE_DEPTH_BITS <= 16
+#define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort
+#else
+#define DEFAULT_SOFTWARE_DEPTH_TYPE GLuint
+#endif
+
+
+/**
+ * Max image/surface/texture size.
+ */
+#define SWRAST_MAX_WIDTH 16384
+#define SWRAST_MAX_HEIGHT 16384
+
/**
* \struct SWvertex
* 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.
* primitives unaccelerated), hook in swrast_setup instead.
*/
typedef struct {
- /** win[0], win[1] are the screen-coords of SWvertex. win[2] is the
- * z-coord. what is win[3]? */
- GLfloat win[4];
- GLfloat texcoord[MAX_TEXTURE_COORD_UNITS][4];
- GLchan color[4];
- GLchan specular[4];
- GLfloat fog;
- GLfloat index;
+ 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 void
-_swrast_use_read_buffer( GLcontext *ctx );
-
-extern void
-_swrast_use_draw_buffer( GLcontext *ctx );
extern GLboolean
-_swrast_CreateContext( GLcontext *ctx );
+_swrast_CreateContext( struct gl_context *ctx );
extern void
-_swrast_DestroyContext( GLcontext *ctx );
+_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( GLcontext *ctx );
+_swrast_GetDeviceDriverReference( struct gl_context *ctx );
extern void
-_swrast_Bitmap( GLcontext *ctx,
+_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( GLcontext *ctx,
+_swrast_CopyPixels( struct gl_context *ctx,
GLint srcx, GLint srcy,
GLint destx, GLint desty,
GLsizei width, GLsizei height,
GLenum type );
+extern GLboolean
+swrast_fast_copy_pixels(struct gl_context *ctx,
+ GLint srcX, GLint srcY, GLsizei width, GLsizei height,
+ GLint dstX, GLint dstY, GLenum type);
+
extern void
-_swrast_DrawPixels( GLcontext *ctx,
+_swrast_DrawPixels( struct gl_context *ctx,
GLint x, GLint y,
GLsizei width, GLsizei height,
GLenum format, GLenum type,
const GLvoid *pixels );
extern void
-_swrast_ReadPixels( GLcontext *ctx,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- GLvoid *pixels );
-
-extern void
-_swrast_Clear( GLcontext *ctx, GLbitfield mask, GLboolean all,
- GLint x, GLint y, GLint width, GLint height );
+_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_Accum( GLcontext *ctx, GLenum op,
- GLfloat value, GLint xpos, GLint ypos,
- GLint width, GLint height );
-
+_swrast_Clear(struct gl_context *ctx, GLbitfield buffers);
-extern void
-_swrast_DrawBuffer( GLcontext *ctx, GLenum mode );
+/* Reset the stipple counter
+ */
extern void
-_swrast_DrawBuffers( GLcontext *ctx, GLsizei n, const GLenum *buffers );
-
+_swrast_ResetLineStipple( struct gl_context *ctx );
-/* Reset the stipple counter
+/**
+ * Indicates front/back facing for subsequent points/lines when drawing
+ * unfilled polygons. Needed for two-side stencil.
*/
extern void
-_swrast_ResetLineStipple( GLcontext *ctx );
+_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( GLcontext *ctx, const SWvertex *v );
+_swrast_Point( struct gl_context *ctx, const SWvertex *v );
extern void
-_swrast_Line( GLcontext *ctx, const SWvertex *v0, const SWvertex *v1 );
+_swrast_Line( struct gl_context *ctx, const SWvertex *v0, const SWvertex *v1 );
extern void
-_swrast_Triangle( GLcontext *ctx, const SWvertex *v0,
+_swrast_Triangle( struct gl_context *ctx, const SWvertex *v0,
const SWvertex *v1, const SWvertex *v2 );
extern void
-_swrast_Quad( GLcontext *ctx,
+_swrast_Quad( struct gl_context *ctx,
const SWvertex *v0, const SWvertex *v1,
const SWvertex *v2, const SWvertex *v3);
extern void
-_swrast_flush( GLcontext *ctx );
+_swrast_flush( struct gl_context *ctx );
extern void
-_swrast_render_primitive( GLcontext *ctx, GLenum mode );
+_swrast_render_primitive( struct gl_context *ctx, GLenum mode );
extern void
-_swrast_render_start( GLcontext *ctx );
+_swrast_render_start( struct gl_context *ctx );
extern void
-_swrast_render_finish( GLcontext *ctx );
+_swrast_render_finish( struct gl_context *ctx );
+
+extern struct gl_texture_image *
+_swrast_new_texture_image( struct gl_context *ctx );
-/* Tell the software rasterizer about core state changes.
- */
extern void
-_swrast_InvalidateState( GLcontext *ctx, GLuint new_state );
+_swrast_delete_texture_image(struct gl_context *ctx,
+ struct gl_texture_image *texImage);
+
+extern GLboolean
+_swrast_alloc_texture_image_buffer(struct gl_context *ctx,
+ struct gl_texture_image *texImage);
-/* Configure software rasterizer to match hardware rasterizer characteristics:
- */
extern void
-_swrast_allow_vertex_fog( GLcontext *ctx, GLboolean value );
+_swrast_init_texture_image(struct gl_texture_image *texImage);
extern void
-_swrast_allow_pixel_fog( GLcontext *ctx, GLboolean value );
+_swrast_free_texture_image_buffer(struct gl_context *ctx,
+ struct gl_texture_image *texImage);
-/* Debug:
- */
extern void
-_swrast_print_vertex( GLcontext *ctx, const SWvertex *v );
+_swrast_map_teximage(struct gl_context *ctx,
+ struct gl_texture_image *texImage,
+ GLuint slice,
+ GLuint x, GLuint y, GLuint w, GLuint h,
+ GLbitfield mode,
+ GLubyte **mapOut,
+ GLint *rowStrideOut);
+extern void
+_swrast_unmap_teximage(struct gl_context *ctx,
+ struct gl_texture_image *texImage,
+ GLuint slice);
-/*
- * Imaging fallbacks (a better solution should be found, perhaps
- * moving all the imaging fallback code to a new module)
+/* Tell the software rasterizer about core state changes.
*/
extern void
-_swrast_CopyConvolutionFilter2D(GLcontext *ctx, GLenum target,
- GLenum internalFormat,
- GLint x, GLint y, GLsizei width,
- GLsizei height);
-extern void
-_swrast_CopyConvolutionFilter1D(GLcontext *ctx, GLenum target,
- GLenum internalFormat,
- GLint x, GLint y, GLsizei width);
-extern void
-_swrast_CopyColorSubTable( GLcontext *ctx,GLenum target, GLsizei start,
- GLint x, GLint y, GLsizei width);
+_swrast_InvalidateState( struct gl_context *ctx, GLbitfield new_state );
+
+/* Configure software rasterizer to match hardware rasterizer characteristics:
+ */
extern void
-_swrast_CopyColorTable( GLcontext *ctx,
- GLenum target, GLenum internalformat,
- GLint x, GLint y, GLsizei width);
+_swrast_allow_vertex_fog( struct gl_context *ctx, GLboolean value );
+extern void
+_swrast_allow_pixel_fog( struct gl_context *ctx, GLboolean value );
-/*
- * Texture fallbacks. Could also live in a new module
- * with the rest of the texture store fallbacks?
+/* Debug:
*/
extern void
-_swrast_copy_teximage1d(GLcontext *ctx, GLenum target, GLint level,
- GLenum internalFormat,
- GLint x, GLint y, GLsizei width, GLint border);
+_swrast_print_vertex( struct gl_context *ctx, const SWvertex *v );
-extern void
-_swrast_copy_teximage2d(GLcontext *ctx, GLenum target, GLint level,
- GLenum internalFormat,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLint border);
extern void
-_swrast_copy_texsubimage1d(GLcontext *ctx, GLenum target, GLint level,
- GLint xoffset, GLint x, GLint y, GLsizei width);
+_swrast_eject_texture_images(struct gl_context *ctx);
+
extern void
-_swrast_copy_texsubimage2d(GLcontext *ctx,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset,
- GLint x, GLint y, GLsizei width, GLsizei height);
+_swrast_render_texture(struct gl_context *ctx,
+ struct gl_framebuffer *fb,
+ struct gl_renderbuffer_attachment *att);
extern void
-_swrast_copy_texsubimage3d(GLcontext *ctx,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint x, GLint y, GLsizei width, GLsizei height);
+_swrast_finish_render_texture(struct gl_context *ctx,
+ struct gl_renderbuffer_attachment *att);
+
-/* The driver interface for the software rasterizer.
- * Unless otherwise noted, all functions are mandatory.
+extern GLboolean
+_swrast_AllocTextureStorage(struct gl_context *ctx,
+ struct gl_texture_object *texObj,
+ GLsizei levels, GLsizei width,
+ GLsizei height, GLsizei depth);
+
+
+/**
+ * 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 {
-#if OLD_RENDERBUFFER
- void (*SetBuffer)(GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit);
/*
- * Specifies the current color buffer for span/pixel writing/reading.
- * buffer indicates which window to write to / read from. Normally,
- * this'll be the buffer currently bound to the context, but it doesn't
- * have to be!
- * bufferBit indicates which color buffer, exactly one of:
- * DD_FRONT_LEFT_BIT - this buffer always exists
- * DD_BACK_LEFT_BIT - when double buffering
- * DD_FRONT_RIGHT_BIT - when using stereo
- * DD_BACK_RIGHT_BIT - when using stereo and double buffering
- * DD_AUXn_BIT - if aux buffers are implemented
- */
-#endif
-
- /***
- *** Functions for synchronizing access to the framebuffer:
- ***/
-
- void (*SpanRenderStart)(GLcontext *ctx);
- void (*SpanRenderFinish)(GLcontext *ctx);
- /* OPTIONAL.
+ * These are called before and after accessing renderbuffers during
+ * software rasterization.
*
- * Called before and after all rendering operations, including DrawPixels,
- * ReadPixels, Bitmap, span functions, and CopyTexImage, etc commands.
* 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);
};