diff options
Diffstat (limited to 'mesalib/src/mesa/swrast')
| -rw-r--r-- | mesalib/src/mesa/swrast/s_span.h | 448 | ||||
| -rw-r--r-- | mesalib/src/mesa/swrast/s_texfetch_tmp.h | 2 | ||||
| -rw-r--r-- | mesalib/src/mesa/swrast/swrast.h | 1 |
3 files changed, 227 insertions, 224 deletions
diff --git a/mesalib/src/mesa/swrast/s_span.h b/mesalib/src/mesa/swrast/s_span.h index d3cce304f..382c3d2eb 100644 --- a/mesalib/src/mesa/swrast/s_span.h +++ b/mesalib/src/mesa/swrast/s_span.h @@ -1,223 +1,225 @@ -/*
- * Mesa 3-D graphics library
- * Version: 7.5
- *
- * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
- * 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.
- */
-
-
-#ifndef S_SPAN_H
-#define S_SPAN_H
-
-
-#include "main/config.h"
-#include "main/glheader.h"
-#include "main/mtypes.h"
-
-struct gl_context;
-struct gl_renderbuffer;
-
-
-/**
- * \defgroup SpanFlags
- * Special bitflags to describe span data.
- *
- * In general, the point/line/triangle functions interpolate/emit the
- * attributes specified by swrast->_ActiveAttribs (i.e. FRAT_BIT_* values).
- * Some things don't fit into that, though, so we have these flags.
- */
-/*@{*/
-#define SPAN_RGBA 0x01 /**< interpMask and arrayMask */
-#define SPAN_Z 0x02 /**< interpMask and arrayMask */
-#define SPAN_FLAT 0x04 /**< interpMask: flat shading? */
-#define SPAN_XY 0x08 /**< array.x[], y[] valid? */
-#define SPAN_MASK 0x10 /**< was array.mask[] filled in by caller? */
-#define SPAN_LAMBDA 0x20 /**< array.lambda[] valid? */
-#define SPAN_COVERAGE 0x40 /**< array.coverage[] valid? */
-/*@}*/
-
-
-/**
- * \sw_span_arrays
- * \brief Arrays of fragment values.
- *
- * These will either be computed from the span x/xStep values or
- * filled in by glDraw/CopyPixels, etc.
- * These arrays are separated out of sw_span to conserve memory.
- */
-typedef struct sw_span_arrays
-{
- /** Per-fragment attributes (indexed by FRAG_ATTRIB_* tokens) */
- /* XXX someday look at transposing first two indexes for better memory
- * access pattern.
- */
- GLfloat attribs[FRAG_ATTRIB_MAX][MAX_WIDTH][4];
-
- /** This mask indicates which fragments are alive or culled */
- GLubyte mask[MAX_WIDTH];
-
- GLenum ChanType; /**< Color channel type, GL_UNSIGNED_BYTE, GL_FLOAT */
-
- /** Attribute arrays that don't fit into attribs[] array above */
- /*@{*/
- GLubyte rgba8[MAX_WIDTH][4];
- GLushort rgba16[MAX_WIDTH][4];
- GLchan (*rgba)[4]; /** either == rgba8 or rgba16 */
- GLint x[MAX_WIDTH]; /**< fragment X coords */
- GLint y[MAX_WIDTH]; /**< fragment Y coords */
- GLuint z[MAX_WIDTH]; /**< fragment Z coords */
- GLuint index[MAX_WIDTH]; /**< Color indexes */
- GLfloat lambda[MAX_TEXTURE_COORD_UNITS][MAX_WIDTH]; /**< Texture LOD */
- GLfloat coverage[MAX_WIDTH]; /**< Fragment coverage for AA/smoothing */
- /*@}*/
-} SWspanarrays;
-
-
-/**
- * The SWspan structure describes the colors, Z, fogcoord, texcoords,
- * etc for either a horizontal run or an array of independent pixels.
- * We can either specify a base/step to indicate interpolated values, or
- * fill in explicit arrays of values. The interpMask and arrayMask bitfields
- * indicate which attributes are active interpolants or arrays, respectively.
- *
- * It would be interesting to experiment with multiprocessor rasterization
- * with this structure. The triangle rasterizer could simply emit a
- * stream of these structures which would be consumed by one or more
- * span-processing threads which could run in parallel.
- */
-typedef struct sw_span
-{
- /** Coord of first fragment in horizontal span/run */
- GLint x, y;
-
- /** Number of fragments in the span */
- GLuint end;
-
- /** for clipping left edge of spans */
- GLuint leftClip;
-
- /** This flag indicates that mask[] array is effectively filled with ones */
- GLboolean writeAll;
-
- /** either GL_POLYGON, GL_LINE, GL_POLYGON, GL_BITMAP */
- GLenum primitive;
-
- /** 0 = front-facing span, 1 = back-facing span (for two-sided stencil) */
- GLuint facing;
-
- /**
- * This bitmask (of \link SpanFlags SPAN_* flags\endlink) indicates
- * which of the attrStart/StepX/StepY variables are relevant.
- */
- GLbitfield interpMask;
-
- /** Fragment attribute interpolants */
- GLfloat attrStart[FRAG_ATTRIB_MAX][4]; /**< initial value */
- GLfloat attrStepX[FRAG_ATTRIB_MAX][4]; /**< dvalue/dx */
- GLfloat attrStepY[FRAG_ATTRIB_MAX][4]; /**< dvalue/dy */
-
- /* XXX the rest of these will go away eventually... */
-
- /* For horizontal spans, step is the partial derivative wrt X.
- * For lines, step is the delta from one fragment to the next.
- */
- GLfixed red, redStep;
- GLfixed green, greenStep;
- GLfixed blue, blueStep;
- GLfixed alpha, alphaStep;
- GLfixed index, indexStep;
- GLfixed z, zStep; /**< XXX z should probably be GLuint */
- GLfixed intTex[2], intTexStep[2]; /**< (s,t) for unit[0] only */
-
- /**
- * This bitmask (of \link SpanFlags SPAN_* flags\endlink) indicates
- * which of the fragment arrays in the span_arrays struct are relevant.
- */
- GLbitfield arrayMask;
-
- GLbitfield arrayAttribs;
-
- /**
- * We store the arrays of fragment values in a separate struct so
- * that we can allocate sw_span structs on the stack without using
- * a lot of memory. The span_arrays struct is about 1.4MB while the
- * sw_span struct is only about 512 bytes.
- */
- SWspanarrays *array;
-} SWspan;
-
-
-
-#define INIT_SPAN(S, PRIMITIVE) \
-do { \
- (S).primitive = (PRIMITIVE); \
- (S).interpMask = 0x0; \
- (S).arrayMask = 0x0; \
- (S).arrayAttribs = 0x0; \
- (S).end = 0; \
- (S).leftClip = 0; \
- (S).facing = 0; \
- (S).array = SWRAST_CONTEXT(ctx)->SpanArrays; \
-} while (0)
-
-
-
-extern void
-_swrast_span_default_attribs(struct gl_context *ctx, SWspan *span);
-
-extern void
-_swrast_span_interpolate_z( const struct gl_context *ctx, SWspan *span );
-
-extern GLfloat
-_swrast_compute_lambda(GLfloat dsdx, GLfloat dsdy, GLfloat dtdx, GLfloat dtdy,
- GLfloat dqdx, GLfloat dqdy, GLfloat texW, GLfloat texH,
- GLfloat s, GLfloat t, GLfloat q, GLfloat invQ);
-
-
-extern void
-_swrast_write_rgba_span( struct gl_context *ctx, SWspan *span);
-
-
-extern void
-_swrast_read_rgba_span(struct gl_context *ctx, struct gl_renderbuffer *rb,
- GLuint n, GLint x, GLint y, GLenum type, GLvoid *rgba);
-
-extern void
-_swrast_get_values(struct gl_context *ctx, struct gl_renderbuffer *rb,
- GLuint count, const GLint x[], const GLint y[],
- void *values, GLuint valueSize);
-
-extern void
-_swrast_put_row(struct gl_context *ctx, struct gl_renderbuffer *rb,
- GLuint count, GLint x, GLint y,
- const GLvoid *values, GLuint valueSize);
-
-extern void
-_swrast_get_row(struct gl_context *ctx, struct gl_renderbuffer *rb,
- GLuint count, GLint x, GLint y,
- GLvoid *values, GLuint valueSize);
-
-
-extern void *
-_swrast_get_dest_rgba(struct gl_context *ctx, struct gl_renderbuffer *rb,
- SWspan *span);
-
-#endif
+/* + * Mesa 3-D graphics library + * Version: 7.5 + * + * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * 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. + */ + + +#ifndef S_SPAN_H +#define S_SPAN_H + + +#include "main/config.h" +#include "main/glheader.h" +#include "main/mtypes.h" +#include "swrast/s_chan.h" + + +struct gl_context; +struct gl_renderbuffer; + + +/** + * \defgroup SpanFlags + * Special bitflags to describe span data. + * + * In general, the point/line/triangle functions interpolate/emit the + * attributes specified by swrast->_ActiveAttribs (i.e. FRAT_BIT_* values). + * Some things don't fit into that, though, so we have these flags. + */ +/*@{*/ +#define SPAN_RGBA 0x01 /**< interpMask and arrayMask */ +#define SPAN_Z 0x02 /**< interpMask and arrayMask */ +#define SPAN_FLAT 0x04 /**< interpMask: flat shading? */ +#define SPAN_XY 0x08 /**< array.x[], y[] valid? */ +#define SPAN_MASK 0x10 /**< was array.mask[] filled in by caller? */ +#define SPAN_LAMBDA 0x20 /**< array.lambda[] valid? */ +#define SPAN_COVERAGE 0x40 /**< array.coverage[] valid? */ +/*@}*/ + + +/** + * \sw_span_arrays + * \brief Arrays of fragment values. + * + * These will either be computed from the span x/xStep values or + * filled in by glDraw/CopyPixels, etc. + * These arrays are separated out of sw_span to conserve memory. + */ +typedef struct sw_span_arrays +{ + /** Per-fragment attributes (indexed by FRAG_ATTRIB_* tokens) */ + /* XXX someday look at transposing first two indexes for better memory + * access pattern. + */ + GLfloat attribs[FRAG_ATTRIB_MAX][MAX_WIDTH][4]; + + /** This mask indicates which fragments are alive or culled */ + GLubyte mask[MAX_WIDTH]; + + GLenum ChanType; /**< Color channel type, GL_UNSIGNED_BYTE, GL_FLOAT */ + + /** Attribute arrays that don't fit into attribs[] array above */ + /*@{*/ + GLubyte rgba8[MAX_WIDTH][4]; + GLushort rgba16[MAX_WIDTH][4]; + GLchan (*rgba)[4]; /** either == rgba8 or rgba16 */ + GLint x[MAX_WIDTH]; /**< fragment X coords */ + GLint y[MAX_WIDTH]; /**< fragment Y coords */ + GLuint z[MAX_WIDTH]; /**< fragment Z coords */ + GLuint index[MAX_WIDTH]; /**< Color indexes */ + GLfloat lambda[MAX_TEXTURE_COORD_UNITS][MAX_WIDTH]; /**< Texture LOD */ + GLfloat coverage[MAX_WIDTH]; /**< Fragment coverage for AA/smoothing */ + /*@}*/ +} SWspanarrays; + + +/** + * The SWspan structure describes the colors, Z, fogcoord, texcoords, + * etc for either a horizontal run or an array of independent pixels. + * We can either specify a base/step to indicate interpolated values, or + * fill in explicit arrays of values. The interpMask and arrayMask bitfields + * indicate which attributes are active interpolants or arrays, respectively. + * + * It would be interesting to experiment with multiprocessor rasterization + * with this structure. The triangle rasterizer could simply emit a + * stream of these structures which would be consumed by one or more + * span-processing threads which could run in parallel. + */ +typedef struct sw_span +{ + /** Coord of first fragment in horizontal span/run */ + GLint x, y; + + /** Number of fragments in the span */ + GLuint end; + + /** for clipping left edge of spans */ + GLuint leftClip; + + /** This flag indicates that mask[] array is effectively filled with ones */ + GLboolean writeAll; + + /** either GL_POLYGON, GL_LINE, GL_POLYGON, GL_BITMAP */ + GLenum primitive; + + /** 0 = front-facing span, 1 = back-facing span (for two-sided stencil) */ + GLuint facing; + + /** + * This bitmask (of \link SpanFlags SPAN_* flags\endlink) indicates + * which of the attrStart/StepX/StepY variables are relevant. + */ + GLbitfield interpMask; + + /** Fragment attribute interpolants */ + GLfloat attrStart[FRAG_ATTRIB_MAX][4]; /**< initial value */ + GLfloat attrStepX[FRAG_ATTRIB_MAX][4]; /**< dvalue/dx */ + GLfloat attrStepY[FRAG_ATTRIB_MAX][4]; /**< dvalue/dy */ + + /* XXX the rest of these will go away eventually... */ + + /* For horizontal spans, step is the partial derivative wrt X. + * For lines, step is the delta from one fragment to the next. + */ + GLfixed red, redStep; + GLfixed green, greenStep; + GLfixed blue, blueStep; + GLfixed alpha, alphaStep; + GLfixed index, indexStep; + GLfixed z, zStep; /**< XXX z should probably be GLuint */ + GLfixed intTex[2], intTexStep[2]; /**< (s,t) for unit[0] only */ + + /** + * This bitmask (of \link SpanFlags SPAN_* flags\endlink) indicates + * which of the fragment arrays in the span_arrays struct are relevant. + */ + GLbitfield arrayMask; + + GLbitfield arrayAttribs; + + /** + * We store the arrays of fragment values in a separate struct so + * that we can allocate sw_span structs on the stack without using + * a lot of memory. The span_arrays struct is about 1.4MB while the + * sw_span struct is only about 512 bytes. + */ + SWspanarrays *array; +} SWspan; + + + +#define INIT_SPAN(S, PRIMITIVE) \ +do { \ + (S).primitive = (PRIMITIVE); \ + (S).interpMask = 0x0; \ + (S).arrayMask = 0x0; \ + (S).arrayAttribs = 0x0; \ + (S).end = 0; \ + (S).leftClip = 0; \ + (S).facing = 0; \ + (S).array = SWRAST_CONTEXT(ctx)->SpanArrays; \ +} while (0) + + + +extern void +_swrast_span_default_attribs(struct gl_context *ctx, SWspan *span); + +extern void +_swrast_span_interpolate_z( const struct gl_context *ctx, SWspan *span ); + +extern GLfloat +_swrast_compute_lambda(GLfloat dsdx, GLfloat dsdy, GLfloat dtdx, GLfloat dtdy, + GLfloat dqdx, GLfloat dqdy, GLfloat texW, GLfloat texH, + GLfloat s, GLfloat t, GLfloat q, GLfloat invQ); + + +extern void +_swrast_write_rgba_span( struct gl_context *ctx, SWspan *span); + + +extern void +_swrast_read_rgba_span(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLuint n, GLint x, GLint y, GLenum type, GLvoid *rgba); + +extern void +_swrast_get_values(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLuint count, const GLint x[], const GLint y[], + void *values, GLuint valueSize); + +extern void +_swrast_put_row(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLuint count, GLint x, GLint y, + const GLvoid *values, GLuint valueSize); + +extern void +_swrast_get_row(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLuint count, GLint x, GLint y, + GLvoid *values, GLuint valueSize); + + +extern void * +_swrast_get_dest_rgba(struct gl_context *ctx, struct gl_renderbuffer *rb, + SWspan *span); + +#endif diff --git a/mesalib/src/mesa/swrast/s_texfetch_tmp.h b/mesalib/src/mesa/swrast/s_texfetch_tmp.h index 3eebd13d7..c63b2043c 100644 --- a/mesalib/src/mesa/swrast/s_texfetch_tmp.h +++ b/mesalib/src/mesa/swrast/s_texfetch_tmp.h @@ -976,7 +976,7 @@ static void FETCH(f_rg88)( const struct swrast_texture_image *texImage, static void store_texel_rg88(struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, const void *texel) { - const GLchan *rgba = (const GLubyte *) texel; + const GLchan *rgba = (const GLchan *) texel; GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); GLubyte r = CHAN_TO_UBYTE(rgba[RCOMP]); GLubyte g = CHAN_TO_UBYTE(rgba[GCOMP]); diff --git a/mesalib/src/mesa/swrast/swrast.h b/mesalib/src/mesa/swrast/swrast.h index 390b42264..06cc65158 100644 --- a/mesalib/src/mesa/swrast/swrast.h +++ b/mesalib/src/mesa/swrast/swrast.h @@ -33,6 +33,7 @@ #define SWRAST_H #include "main/mtypes.h" +#include "swrast/s_chan.h" /** * \struct SWvertex |