More GLSL code:

- use macros to access and modify render inputs bit-field;
- un-alias generic vertex attributes for ARB vertex calls;
- use MAX_VERTEX_PROGRAM_ATTRIBS (NV code) or MAX_VERTEX_ATTRIBS
  (ARB code) in place of VERT_ATTRIB_MAX;
- define VERT_ATTRIB_GENERIC0..15 for un-aliased vertex
  attributes for ARB_vertex_shader;
- fix generic attribute index range check in arbprogparse.c;
- interface GLSL varyings between vertex and fragment shader;
- use 64-bit optimised bitset (bitset.h) for render inputs;

1 files changed, 109 insertions, 99 deletions

diff --git a/src/mesa/swrast/s_arbshader.c b/src/mesa/swrast/s_arbshader.c
index ba146dd1bb9..9cd96c5a366 100644
--- a/src/mesa/swrast/s_arbshader.c
+++ b/src/mesa/swrast/s_arbshader.c
@@ -1,99 +1,109 @@
-/*

- * Mesa 3-D graphics library

- * Version:  6.5

- *

- * Copyright (C) 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.

- *

- * Authors:

- *    Michal Krol

- */

-

-#include "glheader.h"

-#include "context.h"

-#include "colormac.h"

-#include "s_arbshader.h"

-#include "s_context.h"

-#include "shaderobjects.h"

-#include "shaderobjects_3dlabs.h"

-#include "slang_utility.h"

-#include "slang_link.h"

-

-void _swrast_exec_arbshader (GLcontext *ctx, struct sw_span *span)

-{

-	struct gl2_program_intf **pro;

-	GLuint i;

-

-	if (!ctx->ShaderObjects._FragmentShaderPresent)

-		return;

-	pro = ctx->ShaderObjects.CurrentProgram;

-	if (!ctx->ShaderObjects._VertexShaderPresent)

-		(**pro).UpdateFixedUniforms (pro);

-

-	for (i = span->start; i < span->end; i++)

-	{

-		/* only run shader on active fragments */

-		if (span->array->mask[i]) {

-		GLfloat vec[4];

-		GLuint j;

-		GLboolean discard;

-

-		vec[0] = (GLfloat) span->x + i;

-		vec[1] = (GLfloat) span->y;

-		vec[2] = (GLfloat) span->array->z[i] / ctx->DrawBuffer->_DepthMaxF;

-		vec[3] = span->w + span->dwdx * i;

-		(**pro).UpdateFixedVarying (pro, SLANG_FRAGMENT_FIXED_FRAGCOORD, vec, 0,

-			4 * sizeof (GLfloat), GL_TRUE);

-		vec[0] = CHAN_TO_FLOAT(span->array->rgba[i][RCOMP]);

-		vec[1] = CHAN_TO_FLOAT(span->array->rgba[i][GCOMP]);

-		vec[2] = CHAN_TO_FLOAT(span->array->rgba[i][BCOMP]);

-		vec[3] = CHAN_TO_FLOAT(span->array->rgba[i][ACOMP]);

-		(**pro).UpdateFixedVarying (pro, SLANG_FRAGMENT_FIXED_COLOR, vec, 0, 4 * sizeof (GLfloat),

-			GL_TRUE);

-		for (j = 0; j < ctx->Const.MaxTextureCoordUnits; j++)

-		{

-			vec[0] = span->array->texcoords[j][i][0];

-			vec[1] = span->array->texcoords[j][i][1];

-			vec[2] = span->array->texcoords[j][i][2];

-			vec[3] = span->array->texcoords[j][i][3];

-			(**pro).UpdateFixedVarying (pro, SLANG_FRAGMENT_FIXED_TEXCOORD, vec, j,

-				4 * sizeof (GLfloat), GL_TRUE);

-		}

-

-		_slang_exec_fragment_shader (pro);

-

-		_slang_fetch_discard (pro, &discard);

-		if (discard)

-		{

-			span->array->mask[i] = GL_FALSE;

-			span->writeAll = GL_FALSE;

-		}

-		else

-		{

-			(**pro).UpdateFixedVarying (pro, SLANG_FRAGMENT_FIXED_FRAGCOLOR, vec, 0,

-				4 * sizeof (GLfloat), GL_FALSE);

-			UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][RCOMP], vec[0]);

-			UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][GCOMP], vec[1]);

-			UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][BCOMP], vec[2]);

-			UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][ACOMP], vec[3]);

-		}

-		}

-	}

-}

-

+/*
+ * Mesa 3-D graphics library
+ * Version:  6.5
+ *
+ * Copyright (C) 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.
+ *
+ * Authors:
+ *    Michal Krol
+ */
+
+#include "glheader.h"
+#include "context.h"
+#include "colormac.h"
+#include "s_arbshader.h"
+#include "s_context.h"
+#include "shaderobjects.h"
+#include "shaderobjects_3dlabs.h"
+#include "slang_utility.h"
+#include "slang_link.h"
+
+void _swrast_exec_arbshader (GLcontext *ctx, struct sw_span *span)
+{
+	struct gl2_program_intf **pro;
+	GLuint i;
+
+	if (!ctx->ShaderObjects._FragmentShaderPresent)
+		return;
+	pro = ctx->ShaderObjects.CurrentProgram;
+	if (!ctx->ShaderObjects._VertexShaderPresent)
+		(**pro).UpdateFixedUniforms (pro);
+
+	for (i = span->start; i < span->end; i++)
+	{
+		/* only run shader on active fragments */
+		if (span->array->mask[i]) {
+		GLfloat vec[4];
+		GLuint j;
+		GLboolean discard;
+
+		vec[0] = (GLfloat) span->x + i;
+		vec[1] = (GLfloat) span->y;
+		vec[2] = (GLfloat) span->array->z[i] / ctx->DrawBuffer->_DepthMaxF;
+		vec[3] = span->w + span->dwdx * i;
+		(**pro).UpdateFixedVarying (pro, SLANG_FRAGMENT_FIXED_FRAGCOORD, vec, 0,
+			4 * sizeof (GLfloat), GL_TRUE);
+		vec[0] = CHAN_TO_FLOAT(span->array->rgba[i][RCOMP]);
+		vec[1] = CHAN_TO_FLOAT(span->array->rgba[i][GCOMP]);
+		vec[2] = CHAN_TO_FLOAT(span->array->rgba[i][BCOMP]);
+		vec[3] = CHAN_TO_FLOAT(span->array->rgba[i][ACOMP]);
+		(**pro).UpdateFixedVarying (pro, SLANG_FRAGMENT_FIXED_COLOR, vec, 0, 4 * sizeof (GLfloat),
+			GL_TRUE);
+		for (j = 0; j < ctx->Const.MaxTextureCoordUnits; j++)
+		{
+			vec[0] = span->array->texcoords[j][i][0];
+			vec[1] = span->array->texcoords[j][i][1];
+			vec[2] = span->array->texcoords[j][i][2];
+			vec[3] = span->array->texcoords[j][i][3];
+			(**pro).UpdateFixedVarying (pro, SLANG_FRAGMENT_FIXED_TEXCOORD, vec, j,
+				4 * sizeof (GLfloat), GL_TRUE);
+		}
+		for (j = 0; j < MAX_VARYING_VECTORS; j++)
+		{
+			GLuint k;
+
+			for (k = 0; k < VARYINGS_PER_VECTOR; k++)
+			{
+				(**pro).UpdateVarying (pro, j * VARYINGS_PER_VECTOR + k,
+					&span->array->varying[i][j][k], GL_FALSE);
+			}
+		}
+
+		_slang_exec_fragment_shader (pro);
+
+		_slang_fetch_discard (pro, &discard);
+		if (discard)
+		{
+			span->array->mask[i] = GL_FALSE;
+			span->writeAll = GL_FALSE;
+		}
+		else
+		{
+			(**pro).UpdateFixedVarying (pro, SLANG_FRAGMENT_FIXED_FRAGCOLOR, vec, 0,
+				4 * sizeof (GLfloat), GL_FALSE);
+			UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][RCOMP], vec[0]);
+			UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][GCOMP], vec[1]);
+			UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][BCOMP], vec[2]);
+			UNCLAMPED_FLOAT_TO_CHAN(span->array->rgba[i][ACOMP], vec[3]);
+		}
+		}
+	}
+}
+