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-rw-r--r--src/mesa/swrast/s_aalinetemp.h36
-rw-r--r--src/mesa/swrast/s_aatriangle.c4
-rw-r--r--src/mesa/swrast/s_aatritemp.h17
-rw-r--r--src/mesa/swrast/s_context.c5
-rw-r--r--src/mesa/swrast/s_lines.c16
-rw-r--r--src/mesa/swrast/s_pixeltex.c12
-rw-r--r--src/mesa/swrast/s_pointtemp.h21
-rw-r--r--src/mesa/swrast/s_span.c350
-rw-r--r--src/mesa/swrast/s_span.h17
-rw-r--r--src/mesa/swrast/s_triangle.c12
10 files changed, 118 insertions, 372 deletions
diff --git a/src/mesa/swrast/s_aalinetemp.h b/src/mesa/swrast/s_aalinetemp.h
index 337a9606ac..4ffa5b81fb 100644
--- a/src/mesa/swrast/s_aalinetemp.h
+++ b/src/mesa/swrast/s_aalinetemp.h
@@ -30,6 +30,8 @@
/*
* Function to render each fragment in the AA line.
+ * \param ix - integer fragment window X coordiante
+ * \param iy - integer fragment window Y coordiante
*/
static void
NAME(plot)(GLcontext *ctx, struct LineInfo *line, int ix, int iy)
@@ -77,34 +79,46 @@ NAME(plot)(GLcontext *ctx, struct LineInfo *line, int ix, int iy)
#endif
#ifdef DO_TEX
{
- const GLfloat invQ = solve_plane_recip(fx, fy, line->vPlane[0]);
+ GLfloat invQ;
+ if (ctx->FragmentProgram._Enabled) {
+ invQ = 1.0F;
+ }
+ else {
+ invQ = solve_plane_recip(fx, fy, line->vPlane[0]);
+ }
line->span.array->texcoords[0][i][0] = solve_plane(fx, fy, line->sPlane[0]) * invQ;
line->span.array->texcoords[0][i][1] = solve_plane(fx, fy, line->tPlane[0]) * invQ;
line->span.array->texcoords[0][i][2] = solve_plane(fx, fy, line->uPlane[0]) * invQ;
- line->span.array->lambda[0][i] = compute_lambda(line->sPlane[0], line->tPlane[0], invQ,
- line->texWidth[0], line->texHeight[0]);
+ line->span.array->lambda[0][i] = compute_lambda(line->sPlane[0],
+ line->tPlane[0], invQ,
+ line->texWidth[0],
+ line->texHeight[0]);
}
#elif defined(DO_MULTITEX)
{
GLuint unit;
for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
if (ctx->Texture.Unit[unit]._ReallyEnabled) {
- const GLfloat invQ = solve_plane_recip(fx, fy, line->vPlane[unit]);
+ GLfloat invQ;
+ if (ctx->FragmentProgram._Enabled) {
+ invQ = 1.0F;
+ }
+ else {
+ invQ = solve_plane_recip(fx, fy, line->vPlane[unit]);
+ }
line->span.array->texcoords[unit][i][0] = solve_plane(fx, fy, line->sPlane[unit]) * invQ;
line->span.array->texcoords[unit][i][1] = solve_plane(fx, fy, line->tPlane[unit]) * invQ;
line->span.array->texcoords[unit][i][2] = solve_plane(fx, fy, line->uPlane[unit]) * invQ;
line->span.array->lambda[unit][i] = compute_lambda(line->sPlane[unit],
- line->tPlane[unit], invQ,
- line->texWidth[unit], line->texHeight[unit]);
+ line->tPlane[unit], invQ,
+ line->texWidth[unit], line->texHeight[unit]);
}
}
}
#endif
if (line->span.end == MAX_WIDTH) {
-#if defined(DO_TEX) || defined(DO_MULTITEX)
- _swrast_write_texture_span(ctx, &(line->span));
-#elif defined(DO_RGBA)
+#if defined(DO_RGBA)
_swrast_write_rgba_span(ctx, &(line->span));
#else
_swrast_write_index_span(ctx, &(line->span));
@@ -295,9 +309,7 @@ NAME(line)(GLcontext *ctx, const SWvertex *v0, const SWvertex *v1)
segment(ctx, &line, NAME(plot), 0.0, 1.0);
}
-#if defined(DO_TEX) || defined(DO_MULTITEX)
- _swrast_write_texture_span(ctx, &(line.span));
-#elif defined(DO_RGBA)
+#if defined(DO_RGBA)
_swrast_write_rgba_span(ctx, &(line.span));
#else
_swrast_write_index_span(ctx, &(line.span));
diff --git a/src/mesa/swrast/s_aatriangle.c b/src/mesa/swrast/s_aatriangle.c
index 1bcaa95d33..5509f34c95 100644
--- a/src/mesa/swrast/s_aatriangle.c
+++ b/src/mesa/swrast/s_aatriangle.c
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 5.1
+ * Version: 6.3
*
- * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 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"),
diff --git a/src/mesa/swrast/s_aatritemp.h b/src/mesa/swrast/s_aatritemp.h
index 53dd59fa9f..16e26d3f8a 100644
--- a/src/mesa/swrast/s_aatritemp.h
+++ b/src/mesa/swrast/s_aatritemp.h
@@ -1,9 +1,8 @@
-
/*
* Mesa 3-D graphics library
- * Version: 5.1
+ * Version: 6.3
*
- * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 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"),
@@ -348,11 +347,9 @@
span.y = iy;
span.end = (GLuint) ix - (GLuint) startX;
ASSERT(span.interpMask == 0);
-#if defined(DO_MULTITEX) || defined(DO_TEX)
- _swrast_write_texture_span(ctx, &span);
-#elif defined(DO_RGBA)
+#if defined(DO_RGBA)
_swrast_write_rgba_span(ctx, &span);
-#elif defined(DO_INDEX)
+#else
_swrast_write_index_span(ctx, &span);
#endif
}
@@ -509,11 +506,9 @@
span.y = iy;
span.end = n;
ASSERT(span.interpMask == 0);
-#if defined(DO_MULTITEX) || defined(DO_TEX)
- _swrast_write_texture_span(ctx, &span);
-#elif defined(DO_RGBA)
+#if defined(DO_RGBA)
_swrast_write_rgba_span(ctx, &span);
-#elif defined(DO_INDEX)
+#else
_swrast_write_index_span(ctx, &span);
#endif
}
diff --git a/src/mesa/swrast/s_context.c b/src/mesa/swrast/s_context.c
index a8716d80f5..f81fc11835 100644
--- a/src/mesa/swrast/s_context.c
+++ b/src/mesa/swrast/s_context.c
@@ -692,10 +692,7 @@ _swrast_flush( GLcontext *ctx )
/* flush any pending fragments from rendering points */
if (swrast->PointSpan.end > 0) {
if (ctx->Visual.rgbMode) {
- if (ctx->Texture._EnabledCoordUnits)
- _swrast_write_texture_span(ctx, &(swrast->PointSpan));
- else
- _swrast_write_rgba_span(ctx, &(swrast->PointSpan));
+ _swrast_write_rgba_span(ctx, &(swrast->PointSpan));
}
else {
_swrast_write_index_span(ctx, &(swrast->PointSpan));
diff --git a/src/mesa/swrast/s_lines.c b/src/mesa/swrast/s_lines.c
index a5a612335e..20d32b25a0 100644
--- a/src/mesa/swrast/s_lines.c
+++ b/src/mesa/swrast/s_lines.c
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 5.1
+ * Version: 6.3
*
- * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 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"),
@@ -88,9 +88,7 @@ draw_wide_line( GLcontext *ctx, struct sw_span *span, GLboolean xMajor )
for (i = 0; i < span->end; i++)
y[i]++;
}
- if ((span->interpMask | span->arrayMask) & SPAN_TEXTURE)
- _swrast_write_texture_span(ctx, span);
- else if ((span->interpMask | span->arrayMask) & SPAN_RGBA)
+ if (ctx->Visual.rgbMode)
_swrast_write_rgba_span(ctx, span);
else
_swrast_write_index_span(ctx, span);
@@ -109,9 +107,7 @@ draw_wide_line( GLcontext *ctx, struct sw_span *span, GLboolean xMajor )
for (i = 0; i < span->end; i++)
x[i]++;
}
- if ((span->interpMask | span->arrayMask) & SPAN_TEXTURE)
- _swrast_write_texture_span(ctx, span);
- else if ((span->interpMask | span->arrayMask) & SPAN_RGBA)
+ if (ctx->Visual.rgbMode)
_swrast_write_rgba_span(ctx, span);
else
_swrast_write_index_span(ctx, span);
@@ -191,7 +187,7 @@ draw_wide_line( GLcontext *ctx, struct sw_span *span, GLboolean xMajor )
draw_wide_line(ctx, &span, (GLboolean)(dx > dy)); \
} \
else { \
- _swrast_write_texture_span(ctx, &span); \
+ _swrast_write_rgba_span(ctx, &span); \
}
#include "s_linetemp.h"
@@ -212,7 +208,7 @@ draw_wide_line( GLcontext *ctx, struct sw_span *span, GLboolean xMajor )
draw_wide_line(ctx, &span, (GLboolean)(dx > dy)); \
} \
else { \
- _swrast_write_texture_span(ctx, &span); \
+ _swrast_write_rgba_span(ctx, &span); \
}
#include "s_linetemp.h"
diff --git a/src/mesa/swrast/s_pixeltex.c b/src/mesa/swrast/s_pixeltex.c
index 776a38c915..1c65290d40 100644
--- a/src/mesa/swrast/s_pixeltex.c
+++ b/src/mesa/swrast/s_pixeltex.c
@@ -1,9 +1,8 @@
-
/*
* Mesa 3-D graphics library
- * Version: 4.1
+ * Version: 6.3
*
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 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"),
@@ -95,6 +94,7 @@ _swrast_pixel_texture(GLcontext *ctx, struct sw_span *span)
ASSERT(!(span->arrayMask & SPAN_TEXTURE));
span->arrayMask |= SPAN_TEXTURE;
+ span->interpMask &= ~SPAN_TEXTURE;
/* convert colors into texture coordinates */
pixeltexgen( ctx, span->end,
@@ -108,10 +108,4 @@ _swrast_pixel_texture(GLcontext *ctx, struct sw_span *span)
span->end * 4 * sizeof(GLfloat) );
}
}
-
- /* apply texture mapping */
- _swrast_texture_span( ctx, span );
-
- /* this is a work-around to be fixed by initializing again span */
- span->arrayMask &= ~SPAN_TEXTURE;
}
diff --git a/src/mesa/swrast/s_pointtemp.h b/src/mesa/swrast/s_pointtemp.h
index 25a6a31772..ef48d239ec 100644
--- a/src/mesa/swrast/s_pointtemp.h
+++ b/src/mesa/swrast/s_pointtemp.h
@@ -216,12 +216,7 @@ NAME ( GLcontext *ctx, const SWvertex *vert )
/* check if we need to flush */
if (span->end + (xmax-xmin+1) * (ymax-ymin+1) >= MAX_WIDTH ||
(swrast->_RasterMask & (BLEND_BIT | LOGIC_OP_BIT | MASKING_BIT))) {
-#if FLAGS & (TEXTURE | SPRITE)
- if (ctx->Texture._EnabledUnits)
- _swrast_write_texture_span(ctx, span);
- else
- _swrast_write_rgba_span(ctx, span);
-#elif FLAGS & RGBA
+#if FLAGS & RGBA
_swrast_write_rgba_span(ctx, span);
#else
_swrast_write_index_span(ctx, span);
@@ -238,12 +233,7 @@ NAME ( GLcontext *ctx, const SWvertex *vert )
/* check if we need to flush */
if (count + (xmax-xmin+1) >= MAX_WIDTH) {
span->end = count;
-#if FLAGS & (TEXTURE | SPRITE)
- if (ctx->Texture._EnabledUnits)
- _swrast_write_texture_span(ctx, span);
- else
- _swrast_write_rgba_span(ctx, span);
-#elif FLAGS & RGBA
+#if FLAGS & RGBA
_swrast_write_rgba_span(ctx, span);
#else
_swrast_write_index_span(ctx, span);
@@ -364,12 +354,7 @@ NAME ( GLcontext *ctx, const SWvertex *vert )
/* check if we need to flush */
if (span->end >= MAX_WIDTH ||
(swrast->_RasterMask & (BLEND_BIT | LOGIC_OP_BIT | MASKING_BIT))) {
-#if FLAGS & (TEXTURE | SPRITE)
- if (ctx->Texture._EnabledUnits)
- _swrast_write_texture_span(ctx, span);
- else
- _swrast_write_rgba_span(ctx, span);
-#elif FLAGS & RGBA
+#if FLAGS & RGBA
_swrast_write_rgba_span(ctx, span);
#else
_swrast_write_index_span(ctx, span);
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
index 247c7ee688..8441530956 100644
--- a/src/mesa/swrast/s_span.c
+++ b/src/mesa/swrast/s_span.c
@@ -80,7 +80,7 @@ _swrast_span_default_fog( GLcontext *ctx, struct sw_span *span )
/**
- * Init span's color or index interpolation values to the RasterPos color.
+ * Init span's rgba or index interpolation values to the RasterPos color.
* Used during setup for glDraw/CopyPixels.
*/
void
@@ -127,7 +127,10 @@ _swrast_span_default_texcoords( GLcontext *ctx, struct sw_span *span )
GLuint i;
for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
const GLfloat *tc = ctx->Current.RasterTexCoords[i];
- if (tc[3] > 0.0F) {
+ if (ctx->FragmentProgram._Enabled) {
+ COPY_4V(span->tex[i], tc);
+ }
+ else if (tc[3] > 0.0F) {
/* use (s/q, t/q, r/q, 1) */
span->tex[i][0] = tc[0] / tc[3];
span->tex[i][1] = tc[1] / tc[3];
@@ -884,7 +887,7 @@ _swrast_write_index_span( GLcontext *ctx, struct sw_span *span)
span->writeAll = GL_FALSE;
}
else {
- MEMSET(span->array->mask, 1, span->end);
+ _mesa_memset(span->array->mask, 1, span->end);
span->writeAll = GL_TRUE;
}
@@ -903,6 +906,7 @@ _swrast_write_index_span( GLcontext *ctx, struct sw_span *span)
}
#ifdef DEBUG
+ /* Make sure all fragments are within window bounds */
if (span->arrayMask & SPAN_XY) {
GLuint i;
for (i = 0; i < span->end; i++) {
@@ -1037,262 +1041,6 @@ _swrast_write_index_span( GLcontext *ctx, struct sw_span *span)
/**
- * This function may modify any of the array values in the span.
- * span->interpMask and span->arrayMask may be changed but will be restored
- * to their original values before returning.
- */
-void
-_swrast_write_rgba_span( GLcontext *ctx, struct sw_span *span)
-{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
- const GLuint colorMask = *((GLuint *) ctx->Color.ColorMask);
- const GLuint origInterpMask = span->interpMask;
- const GLuint origArrayMask = span->arrayMask;
- GLboolean monoColor;
-
- ASSERT(span->end <= MAX_WIDTH);
- ASSERT(span->primitive == GL_POINT || span->primitive == GL_LINE ||
- span->primitive == GL_POLYGON || span->primitive == GL_BITMAP);
- ASSERT((span->interpMask & span->arrayMask) == 0);
- ASSERT((span->interpMask | span->arrayMask) & SPAN_RGBA);
-#ifdef DEBUG
- if (ctx->Fog.Enabled)
- ASSERT((span->interpMask | span->arrayMask) & SPAN_FOG);
- if (ctx->Depth.Test)
- ASSERT((span->interpMask | span->arrayMask) & SPAN_Z);
-#endif
-
- if (span->arrayMask & SPAN_MASK) {
- /* mask was initialized by caller, probably glBitmap */
- span->writeAll = GL_FALSE;
- }
- else {
- MEMSET(span->array->mask, 1, span->end);
- span->writeAll = GL_TRUE;
- }
-
- /* Determine if we have mono-chromatic colors */
- monoColor = (span->interpMask & SPAN_RGBA) &&
- span->redStep == 0 && span->greenStep == 0 &&
- span->blueStep == 0 && span->alphaStep == 0;
-
- /* Clipping */
- if ((swrast->_RasterMask & CLIP_BIT) || (span->primitive != GL_POLYGON)) {
- if (!clip_span(ctx, span)) {
- return;
- }
- }
-
- /* Depth bounds test */
- if (ctx->Depth.BoundsTest && ctx->Visual.depthBits > 0) {
- if (!_swrast_depth_bounds_test(ctx, span)) {
- return;
- }
- }
-
-#ifdef DEBUG
- if (span->arrayMask & SPAN_XY) {
- GLuint i;
- for (i = 0; i < span->end; i++) {
- if (span->array->mask[i]) {
- assert(span->array->x[i] >= ctx->DrawBuffer->_Xmin);
- assert(span->array->x[i] < ctx->DrawBuffer->_Xmax);
- assert(span->array->y[i] >= ctx->DrawBuffer->_Ymin);
- assert(span->array->y[i] < ctx->DrawBuffer->_Ymax);
- }
- }
- }
-#endif
-
- /* Polygon Stippling */
- if (ctx->Polygon.StippleFlag && span->primitive == GL_POLYGON) {
- stipple_polygon_span(ctx, span);
- }
-
- /* Fragment program */
- if (ctx->FragmentProgram._Enabled) {
- /* Now we may need to interpolate the colors and texcoords */
- if ((span->interpMask & SPAN_RGBA) &&
- (span->arrayMask & SPAN_RGBA) == 0) {
- interpolate_colors(ctx, span);
- span->interpMask &= ~SPAN_RGBA;
- }
- if (span->interpMask & SPAN_SPEC) {
- interpolate_specular(ctx, span);
- }
- if ((span->interpMask & SPAN_TEXTURE)
- && (span->arrayMask & SPAN_TEXTURE) == 0)
- interpolate_texcoords(ctx, span);
- _swrast_exec_fragment_program(ctx, span);
- monoColor = GL_FALSE;
- }
-
- /* Do the alpha test */
- if (ctx->Color.AlphaEnabled) {
- if (!_swrast_alpha_test(ctx, span)) {
- span->interpMask = origInterpMask;
- span->arrayMask = origArrayMask;
- return;
- }
- }
-
- /* Stencil and Z testing */
- if (ctx->Stencil.Enabled || ctx->Depth.Test) {
- if (span->interpMask & SPAN_Z)
- _swrast_span_interpolate_z(ctx, span);
-
- if (ctx->Stencil.Enabled) {
- if (!_swrast_stencil_and_ztest_span(ctx, span)) {
- span->interpMask = origInterpMask;
- span->arrayMask = origArrayMask;
- return;
- }
- }
- else {
- ASSERT(ctx->Depth.Test);
- ASSERT(span->arrayMask & SPAN_Z);
- /* regular depth testing */
- if (!_swrast_depth_test_span(ctx, span)) {
- span->interpMask = origInterpMask;
- span->arrayMask = origArrayMask;
- return;
- }
- }
- }
-
- /* if we get here, something passed the depth test */
- if (ctx->Depth.OcclusionTest) {
- ctx->OcclusionResult = GL_TRUE;
- }
-
-#if FEATURE_ARB_occlusion_query
- if (ctx->Occlusion.Active) {
- /* update count of 'passed' fragments */
- GLuint i;
- for (i = 0; i < span->end; i++)
- ctx->Occlusion.PassedCounter += span->array->mask[i];
- }
-#endif
-
- /* can't abort span-writing until after occlusion testing */
- if (colorMask == 0x0) {
- span->interpMask = origInterpMask;
- span->arrayMask = origArrayMask;
- return;
- }
-
- /* Now we may need to interpolate the colors */
- if ((span->interpMask & SPAN_RGBA) && (span->arrayMask & SPAN_RGBA) == 0) {
- interpolate_colors(ctx, span);
- /* clear the bit - this allows the WriteMonoCISpan optimization below */
- span->interpMask &= ~SPAN_RGBA;
- }
-
- /* Fog */
- if (swrast->_FogEnabled) {
- _swrast_fog_rgba_span(ctx, span);
- monoColor = GL_FALSE;
- }
-
- /* Antialias coverage application */
- if (span->arrayMask & SPAN_COVERAGE) {
- GLchan (*rgba)[4] = span->array->rgba;
- GLfloat *coverage = span->array->coverage;
- GLuint i;
- for (i = 0; i < span->end; i++) {
- rgba[i][ACOMP] = (GLchan) (rgba[i][ACOMP] * coverage[i]);
- }
- monoColor = GL_FALSE;
- }
-
- if (swrast->_RasterMask & MULTI_DRAW_BIT) {
- multi_write_rgba_span(ctx, span);
- }
- else {
- /* normal: write to exactly one buffer */
- if (ctx->Color._LogicOpEnabled) {
- _swrast_logicop_rgba_span(ctx, span, span->array->rgba);
- monoColor = GL_FALSE;
- }
- else if (ctx->Color.BlendEnabled) {
- _swrast_blend_span(ctx, span, span->array->rgba);
- monoColor = GL_FALSE;
- }
-
- /* Color component masking */
- if (colorMask != 0xffffffff) {
- _swrast_mask_rgba_span(ctx, span, span->array->rgba);
- monoColor = GL_FALSE;
- }
-
- /* write pixels */
- if (span->arrayMask & SPAN_XY) {
- /* array of pixel coords */
- if (monoColor) {
- /* all pixels have same color */
- GLchan color[4];
- color[RCOMP] = FixedToChan(span->red);
- color[GCOMP] = FixedToChan(span->green);
- color[BCOMP] = FixedToChan(span->blue);
- color[ACOMP] = FixedToChan(span->alpha);
- (*swrast->Driver.WriteMonoRGBAPixels)(ctx, span->end,
- span->array->x, span->array->y, color, span->array->mask);
- if (SWRAST_CONTEXT(ctx)->_RasterMask & ALPHABUF_BIT) {
- _swrast_write_mono_alpha_pixels(ctx, span->end,
- span->array->x, span->array->y,
- color[ACOMP], span->array->mask);
- }
- }
- else {
- (*swrast->Driver.WriteRGBAPixels)(ctx, span->end,
- span->array->x, span->array->y,
- (const GLchan (*)[4]) span->array->rgba,
- span->array->mask);
- if (SWRAST_CONTEXT(ctx)->_RasterMask & ALPHABUF_BIT) {
- _swrast_write_alpha_pixels(ctx, span->end,
- span->array->x, span->array->y,
- (const GLchan (*)[4]) span->array->rgba,
- span->array->mask);
- }
- }
- }
- else {
- /* horizontal run of pixels */
- if (monoColor) {
- /* all pixels have same color */
- GLchan color[4];
- color[RCOMP] = FixedToChan(span->red);
- color[GCOMP] = FixedToChan(span->green);
- color[BCOMP] = FixedToChan(span->blue);
- color[ACOMP] = FixedToChan(span->alpha);
- (*swrast->Driver.WriteMonoRGBASpan)(ctx, span->end, span->x,
- span->y, color, span->array->mask);
- if (swrast->_RasterMask & ALPHABUF_BIT) {
- _swrast_write_mono_alpha_span(ctx, span->end, span->x, span->y,
- color[ACOMP],
- span->writeAll ? ((const GLubyte *) NULL) : span->array->mask);
- }
- }
- else {
- /* each pixel is a different color */
- (*swrast->Driver.WriteRGBASpan)(ctx, span->end, span->x, span->y,
- (const GLchan (*)[4]) span->array->rgba,
- span->writeAll ? ((const GLubyte *) NULL) : span->array->mask);
- if (swrast->_RasterMask & ALPHABUF_BIT) {
- _swrast_write_alpha_span(ctx, span->end, span->x, span->y,
- (const GLchan (*)[4]) span->array->rgba,
- span->writeAll ? ((const GLubyte *) NULL) : span->array->mask);
- }
- }
- }
- }
-
- span->interpMask = origInterpMask;
- span->arrayMask = origArrayMask;
-}
-
-
-/**
* Add specular color to base color. This is used only when
* GL_LIGHT_MODEL_COLOR_CONTROL = GL_SEPARATE_SPECULAR_COLOR.
*/
@@ -1319,12 +1067,14 @@ add_colors(GLuint n, GLchan rgba[][4], GLchan specular[][4] )
/**
+ * Apply all the per-fragment operations to a span.
+ * This now includes texturing (_swrast_write_texture_span() is history).
* This function may modify any of the array values in the span.
* span->interpMask and span->arrayMask may be changed but will be restored
* to their original values before returning.
*/
void
-_swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
+_swrast_write_rgba_span( GLcontext *ctx, struct sw_span *span)
{
const GLuint colorMask = *((GLuint *) ctx->Color.ColorMask);
SWcontext *swrast = SWRAST_CONTEXT(ctx);
@@ -1335,10 +1085,10 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
span->primitive == GL_POLYGON || span->primitive == GL_BITMAP);
ASSERT(span->end <= MAX_WIDTH);
ASSERT((span->interpMask & span->arrayMask) == 0);
- ASSERT(ctx->Texture._EnabledCoordUnits || ctx->FragmentProgram._Enabled);
/*
- printf("%s() interp 0x%x array 0x%x\n", __FUNCTION__, span->interpMask, span->arrayMask);
+ printf("%s() interp 0x%x array 0x%x\n", __FUNCTION__,
+ span->interpMask, span->arrayMask);
*/
if (span->arrayMask & SPAN_MASK) {
@@ -1346,11 +1096,11 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
span->writeAll = GL_FALSE;
}
else {
- MEMSET(span->array->mask, 1, span->end);
+ _mesa_memset(span->array->mask, 1, span->end);
span->writeAll = GL_TRUE;
}
- /* Clipping */
+ /* Clip to window/scissor box */
if ((swrast->_RasterMask & CLIP_BIT) || (span->primitive != GL_POLYGON)) {
if (!clip_span(ctx, span)) {
return;
@@ -1358,6 +1108,7 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
}
#ifdef DEBUG
+ /* Make sure all fragments are within window bounds */
if (span->arrayMask & SPAN_XY) {
GLuint i;
for (i = 0; i < span->end; i++) {
@@ -1376,28 +1127,33 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
stipple_polygon_span(ctx, span);
}
- /* Need texture coordinates now */
- if ((span->interpMask & SPAN_TEXTURE)
- && (span->arrayMask & SPAN_TEXTURE) == 0)
+ /* Interpolate texcoords? */
+ if (ctx->Texture._EnabledCoordUnits
+ && (span->interpMask & SPAN_TEXTURE)
+ && (span->arrayMask & SPAN_TEXTURE) == 0) {
interpolate_texcoords(ctx, span);
+ }
- /* Texture with alpha test */
+ /* If the alpha test is enabled, we have to compute the fragment colors
+ * at this point and do the alpha test.
+ * Else, if alpha test is not enabled, we'll try to defer fragment
+ * color computation (by interpolation, texture mapping, fragment program)
+ * until after the Z/stencil tests in the hope that many fragments will
+ * get culled, leaving less work to do.
+ */
if (ctx->Color.AlphaEnabled) {
-
/* Now we need the rgba array, fill it in if needed */
if ((span->interpMask & SPAN_RGBA) && (span->arrayMask & SPAN_RGBA) == 0)
interpolate_colors(ctx, span);
- if (span->interpMask & SPAN_SPEC) {
+ if (span->interpMask & SPAN_SPEC)
interpolate_specular(ctx, span);
- }
- /* Texturing without alpha is done after depth-testing which
- * gives a potential speed-up.
- */
+ /* Compute fragment colors with fragment program or texture lookups */
if (ctx->FragmentProgram._Enabled)
+ /* XXX interpolate depth values here??? */
_swrast_exec_fragment_program( ctx, span );
- else
+ else if (ctx->Texture._EnabledUnits)
_swrast_texture_span( ctx, span );
/* Do the alpha test */
@@ -1413,6 +1169,7 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
_swrast_span_interpolate_z(ctx, span);
if (ctx->Stencil.Enabled) {
+ /* Combined Z/stencil tests */
if (!_swrast_stencil_and_ztest_span(ctx, span)) {
span->interpMask = origInterpMask;
span->arrayMask = origArrayMask;
@@ -1420,9 +1177,9 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
}
}
else {
+ /* Just regular depth testing */
ASSERT(ctx->Depth.Test);
ASSERT(span->arrayMask & SPAN_Z);
- /* regular depth testing */
if (!_swrast_depth_test_span(ctx, span)) {
span->interpMask = origInterpMask;
span->arrayMask = origArrayMask;
@@ -1445,7 +1202,7 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
}
#endif
- /* We had to wait until now to check for glColorMask(F,F,F,F) because of
+ /* We had to wait until now to check for glColorMask(0,0,0,0) because of
* the occlusion test.
*/
if (colorMask == 0x0) {
@@ -1454,20 +1211,21 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
return;
}
- /* Texture without alpha test */
+ /* If the alpha test isn't enabled, we're able to defer computing fragment
+ * colors (by interpolation, texturing, fragment program) until now.
+ * Hopefully, Z/stencil tests culled many of the fragments!
+ */
if (!ctx->Color.AlphaEnabled) {
-
/* Now we need the rgba array, fill it in if needed */
if ((span->interpMask & SPAN_RGBA) && (span->arrayMask & SPAN_RGBA) == 0)
interpolate_colors(ctx, span);
- if (span->interpMask & SPAN_SPEC) {
+ if (span->interpMask & SPAN_SPEC)
interpolate_specular(ctx, span);
- }
if (ctx->FragmentProgram._Enabled)
_swrast_exec_fragment_program( ctx, span );
- else
+ else if (ctx->Texture._EnabledUnits)
_swrast_texture_span( ctx, span );
}
@@ -1481,8 +1239,14 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
if (span->interpMask & SPAN_SPEC) {
interpolate_specular(ctx, span);
}
- ASSERT(span->arrayMask & SPAN_SPEC);
- add_colors( span->end, span->array->rgba, span->array->spec );
+ if (span->arrayMask & SPAN_SPEC) {
+ add_colors( span->end, span->array->rgba, span->array->spec );
+ }
+ else {
+ /* We probably added the base/specular colors during the
+ * vertex stage!
+ */
+ }
}
}
@@ -1502,6 +1266,7 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
}
if (swrast->_RasterMask & MULTI_DRAW_BIT) {
+ /* need to do blend/logicop separately for each color buffer */
multi_write_rgba_span(ctx, span);
}
else {
@@ -1518,11 +1283,12 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
_swrast_mask_rgba_span(ctx, span, span->array->rgba);
}
- /* write pixels */
+ /* Finally, write the pixels to a color buffer */
if (span->arrayMask & SPAN_XY) {
/* array of pixel coords */
- (*swrast->Driver.WriteRGBAPixels)(ctx, span->end, span->array->x,
- span->array->y, (const GLchan (*)[4]) span->array->rgba, span->array->mask);
+ swrast->Driver.WriteRGBAPixels(ctx, span->end, span->array->x,
+ span->array->y, (const GLchan (*)[4]) span->array->rgba,
+ span->array->mask);
if (SWRAST_CONTEXT(ctx)->_RasterMask & ALPHABUF_BIT) {
_swrast_write_alpha_pixels(ctx, span->end,
span->array->x, span->array->y,
@@ -1532,9 +1298,9 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
}
else {
/* horizontal run of pixels */
- (*swrast->Driver.WriteRGBASpan)(ctx, span->end, span->x, span->y,
- (const GLchan (*)[4]) span->array->rgba,
- span->writeAll ? NULL : span->array->mask);
+ swrast->Driver.WriteRGBASpan(ctx, span->end, span->x, span->y,
+ (const GLchan (*)[4]) span->array->rgba,
+ span->writeAll ? NULL : span->array->mask);
if (swrast->_RasterMask & ALPHABUF_BIT) {
_swrast_write_alpha_span(ctx, span->end, span->x, span->y,
(const GLchan (*)[4]) span->array->rgba,
@@ -1555,7 +1321,7 @@ _swrast_write_texture_span( GLcontext *ctx, struct sw_span *span)
*/
void
_swrast_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer,
- GLuint n, GLint x, GLint y, GLchan rgba[][4] )
+ GLuint n, GLint x, GLint y, GLchan rgba[][4] )
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
const GLint bufWidth = (GLint) buffer->Width;
@@ -1609,7 +1375,7 @@ _swrast_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer,
*/
void
_swrast_read_index_span( GLcontext *ctx, GLframebuffer *buffer,
- GLuint n, GLint x, GLint y, GLuint indx[] )
+ GLuint n, GLint x, GLint y, GLuint indx[] )
{
SWcontext *swrast = SWRAST_CONTEXT(ctx);
const GLint bufWidth = (GLint) buffer->Width;
diff --git a/src/mesa/swrast/s_span.h b/src/mesa/swrast/s_span.h
index ee78a0e8e0..29c485c4d0 100644
--- a/src/mesa/swrast/s_span.h
+++ b/src/mesa/swrast/s_span.h
@@ -1,9 +1,8 @@
-
/*
* Mesa 3-D graphics library
- * Version: 5.1
+ * Version: 6.3
*
- * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 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"),
@@ -49,8 +48,8 @@ _swrast_span_default_texcoords( GLcontext *ctx, struct sw_span *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);
+ GLfloat dqdx, GLfloat dqdy, GLfloat texW, GLfloat texH,
+ GLfloat s, GLfloat t, GLfloat q, GLfloat invQ);
extern void
_swrast_write_index_span( GLcontext *ctx, struct sw_span *span);
@@ -61,15 +60,11 @@ _swrast_write_rgba_span( GLcontext *ctx, struct sw_span *span);
extern void
-_swrast_write_texture_span( GLcontext *ctx, struct sw_span *span);
-
-
-extern void
_swrast_read_rgba_span( GLcontext *ctx, GLframebuffer *buffer,
- GLuint n, GLint x, GLint y, GLchan rgba[][4] );
+ GLuint n, GLint x, GLint y, GLchan rgba[][4] );
extern void
_swrast_read_index_span( GLcontext *ctx, GLframebuffer *buffer,
- GLuint n, GLint x, GLint y, GLuint indx[] );
+ GLuint n, GLint x, GLint y, GLuint indx[] );
#endif
diff --git a/src/mesa/swrast/s_triangle.c b/src/mesa/swrast/s_triangle.c
index a1a629c18d..c236e52570 100644
--- a/src/mesa/swrast/s_triangle.c
+++ b/src/mesa/swrast/s_triangle.c
@@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
- * Version: 6.1
+ * Version: 6.3
*
* Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
*
@@ -676,6 +676,9 @@ fast_persp_span(GLcontext *ctx, struct sw_span *span,
GLfloat tex_coord[3], tex_step[3];
GLchan *dest = span->array->rgba[0];
+ const GLuint savedTexEnable = ctx->Texture._EnabledUnits;
+ ctx->Texture._EnabledUnits = 0;
+
tex_coord[0] = span->tex[0][0] * (info->smask + 1);
tex_step[0] = span->texStepX[0][0] * (info->smask + 1);
tex_coord[1] = span->tex[0][1] * (info->tmask + 1);
@@ -785,6 +788,9 @@ fast_persp_span(GLcontext *ctx, struct sw_span *span,
#undef SPAN_NEAREST
#undef SPAN_LINEAR
+
+ /* restore state */
+ ctx->Texture._EnabledUnits = savedTexEnable;
}
@@ -873,7 +879,7 @@ fast_persp_span(GLcontext *ctx, struct sw_span *span,
#define INTERP_SPEC 1
#define INTERP_ALPHA 1
#define INTERP_TEX 1
-#define RENDER_SPAN( span ) _swrast_write_texture_span(ctx, &span);
+#define RENDER_SPAN( span ) _swrast_write_rgba_span(ctx, &span);
#include "s_tritemp.h"
@@ -891,7 +897,7 @@ fast_persp_span(GLcontext *ctx, struct sw_span *span,
#define INTERP_ALPHA 1
#define INTERP_SPEC 1
#define INTERP_MULTITEX 1
-#define RENDER_SPAN( span ) _swrast_write_texture_span(ctx, &span);
+#define RENDER_SPAN( span ) _swrast_write_rgba_span(ctx, &span);
#include "s_tritemp.h"
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 21:31:31 +0000