xserver and mesa git update 28-12-2010

1 files changed, 277 insertions, 277 deletions

diff --git a/mesalib/src/mesa/swrast/s_fragprog.c b/mesalib/src/mesa/swrast/s_fragprog.c
index 9facb44d9..2608d5373 100644
--- a/mesalib/src/mesa/swrast/s_fragprog.c
+++ b/mesalib/src/mesa/swrast/s_fragprog.c
@@ -1,277 +1,277 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.0.3
- *
- * Copyright (C) 1999-2007  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.
- */
-
-#include "main/glheader.h"
-#include "main/colormac.h"
-#include "program/prog_instruction.h"
-
-#include "s_context.h"
-#include "s_fragprog.h"
-#include "s_span.h"
-
-
-/**
- * Apply texture object's swizzle (X/Y/Z/W/0/1) to incoming 'texel'
- * and return results in 'colorOut'.
- */
-static INLINE void
-swizzle_texel(const GLfloat texel[4], GLfloat colorOut[4], GLuint swizzle)
-{
-   if (swizzle == SWIZZLE_NOOP) {
-      COPY_4V(colorOut, texel);
-   }
-   else {
-      GLfloat vector[6];
-      vector[SWIZZLE_X] = texel[0];
-      vector[SWIZZLE_Y] = texel[1];
-      vector[SWIZZLE_Z] = texel[2];
-      vector[SWIZZLE_W] = texel[3];
-      vector[SWIZZLE_ZERO] = 0.0F;
-      vector[SWIZZLE_ONE] = 1.0F;
-      colorOut[0] = vector[GET_SWZ(swizzle, 0)];
-      colorOut[1] = vector[GET_SWZ(swizzle, 1)];
-      colorOut[2] = vector[GET_SWZ(swizzle, 2)];
-      colorOut[3] = vector[GET_SWZ(swizzle, 3)];
-   }
-}
-
-
-/**
- * Fetch a texel with given lod.
- * Called via machine->FetchTexelLod()
- */
-static void
-fetch_texel_lod( GLcontext *ctx, const GLfloat texcoord[4], GLfloat lambda,
-                 GLuint unit, GLfloat color[4] )
-{
-   const struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
-
-   if (texObj) {
-      SWcontext *swrast = SWRAST_CONTEXT(ctx);
-      GLfloat rgba[4];
-
-      lambda = CLAMP(lambda, texObj->MinLod, texObj->MaxLod);
-
-      swrast->TextureSample[unit](ctx, texObj, 1,
-                                  (const GLfloat (*)[4]) texcoord,
-                                  &lambda, &rgba);
-      swizzle_texel(rgba, color, texObj->_Swizzle);
-   }
-   else {
-      ASSIGN_4V(color, 0.0F, 0.0F, 0.0F, 1.0F);
-   }
-}
-
-
-/**
- * Fetch a texel with the given partial derivatives to compute a level
- * of detail in the mipmap.
- * Called via machine->FetchTexelDeriv()
- * \param lodBias  the lod bias which may be specified by a TXB instruction,
- *                 otherwise zero.
- */
-static void
-fetch_texel_deriv( GLcontext *ctx, const GLfloat texcoord[4],
-                   const GLfloat texdx[4], const GLfloat texdy[4],
-                   GLfloat lodBias, GLuint unit, GLfloat color[4] )
-{
-   SWcontext *swrast = SWRAST_CONTEXT(ctx);
-   const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
-   const struct gl_texture_object *texObj = texUnit->_Current;
-
-   if (texObj) {
-      const struct gl_texture_image *texImg =
-         texObj->Image[0][texObj->BaseLevel];
-      const GLfloat texW = (GLfloat) texImg->WidthScale;
-      const GLfloat texH = (GLfloat) texImg->HeightScale;
-      GLfloat lambda;
-      GLfloat rgba[4];
-
-      lambda = _swrast_compute_lambda(texdx[0], texdy[0], /* ds/dx, ds/dy */
-                                      texdx[1], texdy[1], /* dt/dx, dt/dy */
-                                      texdx[3], texdy[3], /* dq/dx, dq/dy */
-                                      texW, texH,
-                                      texcoord[0], texcoord[1], texcoord[3],
-                                      1.0F / texcoord[3]);
-
-      lambda += lodBias + texUnit->LodBias + texObj->LodBias;
-
-      lambda = CLAMP(lambda, texObj->MinLod, texObj->MaxLod);
-
-      swrast->TextureSample[unit](ctx, texObj, 1,
-                                  (const GLfloat (*)[4]) texcoord,
-                                  &lambda, &rgba);
-      swizzle_texel(rgba, color, texObj->_Swizzle);
-   }
-   else {
-      ASSIGN_4V(color, 0.0F, 0.0F, 0.0F, 1.0F);
-   }
-}
-
-
-/**
- * Initialize the virtual fragment program machine state prior to running
- * fragment program on a fragment.  This involves initializing the input
- * registers, condition codes, etc.
- * \param machine  the virtual machine state to init
- * \param program  the fragment program we're about to run
- * \param span  the span of pixels we'll operate on
- * \param col  which element (column) of the span we'll operate on
- */
-static void
-init_machine(GLcontext *ctx, struct gl_program_machine *machine,
-             const struct gl_fragment_program *program,
-             const SWspan *span, GLuint col)
-{
-   GLfloat *wpos = span->array->attribs[FRAG_ATTRIB_WPOS][col];
-
-   if (program->Base.Target == GL_FRAGMENT_PROGRAM_NV) {
-      /* Clear temporary registers (undefined for ARB_f_p) */
-      memset(machine->Temporaries, 0, MAX_PROGRAM_TEMPS * 4 * sizeof(GLfloat));
-   }
-
-   /* ARB_fragment_coord_conventions */
-   if (program->OriginUpperLeft)
-      wpos[1] = ctx->DrawBuffer->Height - 1 - wpos[1];
-   if (!program->PixelCenterInteger) {
-      wpos[0] += 0.5F;
-      wpos[1] += 0.5F;
-   }
-
-   /* Setup pointer to input attributes */
-   machine->Attribs = span->array->attribs;
-
-   machine->DerivX = (GLfloat (*)[4]) span->attrStepX;
-   machine->DerivY = (GLfloat (*)[4]) span->attrStepY;
-   machine->NumDeriv = FRAG_ATTRIB_MAX;
-
-   machine->Samplers = program->Base.SamplerUnits;
-
-   /* if running a GLSL program (not ARB_fragment_program) */
-   if (ctx->Shader.CurrentProgram) {
-      /* Store front/back facing value */
-      machine->Attribs[FRAG_ATTRIB_FACE][col][0] = 1.0F - span->facing;
-   }
-
-   machine->CurElement = col;
-
-   /* init condition codes */
-   machine->CondCodes[0] = COND_EQ;
-   machine->CondCodes[1] = COND_EQ;
-   machine->CondCodes[2] = COND_EQ;
-   machine->CondCodes[3] = COND_EQ;
-
-   /* init call stack */
-   machine->StackDepth = 0;
-
-   machine->FetchTexelLod = fetch_texel_lod;
-   machine->FetchTexelDeriv = fetch_texel_deriv;
-}
-
-
-/**
- * Run fragment program on the pixels in span from 'start' to 'end' - 1.
- */
-static void
-run_program(GLcontext *ctx, SWspan *span, GLuint start, GLuint end)
-{
-   SWcontext *swrast = SWRAST_CONTEXT(ctx);
-   const struct gl_fragment_program *program = ctx->FragmentProgram._Current;
-   const GLbitfield64 outputsWritten = program->Base.OutputsWritten;
-   struct gl_program_machine *machine = &swrast->FragProgMachine;
-   GLuint i;
-
-   for (i = start; i < end; i++) {
-      if (span->array->mask[i]) {
-         init_machine(ctx, machine, program, span, i);
-
-         if (_mesa_execute_program(ctx, &program->Base, machine)) {
-
-            /* Store result color */
-	    if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_COLOR)) {
-               COPY_4V(span->array->attribs[FRAG_ATTRIB_COL0][i],
-                       machine->Outputs[FRAG_RESULT_COLOR]);
-            }
-            else {
-               /* Multiple drawbuffers / render targets
-                * Note that colors beyond 0 and 1 will overwrite other
-                * attributes, such as FOGC, TEX0, TEX1, etc.  That's OK.
-                */
-               GLuint buf;
-               for (buf = 0; buf < ctx->DrawBuffer->_NumColorDrawBuffers; buf++) {
-                  if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DATA0 + buf)) {
-                     COPY_4V(span->array->attribs[FRAG_ATTRIB_COL0 + buf][i],
-                             machine->Outputs[FRAG_RESULT_DATA0 + buf]);
-                  }
-               }
-            }
-
-            /* Store result depth/z */
-            if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
-               const GLfloat depth = machine->Outputs[FRAG_RESULT_DEPTH][2];
-               if (depth <= 0.0)
-                  span->array->z[i] = 0;
-               else if (depth >= 1.0)
-                  span->array->z[i] = ctx->DrawBuffer->_DepthMax;
-               else
-                  span->array->z[i] = IROUND(depth * ctx->DrawBuffer->_DepthMaxF);
-            }
-         }
-         else {
-            /* killed fragment */
-            span->array->mask[i] = GL_FALSE;
-            span->writeAll = GL_FALSE;
-         }
-      }
-   }
-}
-
-
-/**
- * Execute the current fragment program for all the fragments
- * in the given span.
- */
-void
-_swrast_exec_fragment_program( GLcontext *ctx, SWspan *span )
-{
-   const struct gl_fragment_program *program = ctx->FragmentProgram._Current;
-
-   /* incoming colors should be floats */
-   if (program->Base.InputsRead & FRAG_BIT_COL0) {
-      ASSERT(span->array->ChanType == GL_FLOAT);
-   }
-
-   run_program(ctx, span, 0, span->end);
-
-   if (program->Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_COLOR)) {
-      span->interpMask &= ~SPAN_RGBA;
-      span->arrayMask |= SPAN_RGBA;
-   }
-
-   if (program->Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
-      span->interpMask &= ~SPAN_Z;
-      span->arrayMask |= SPAN_Z;
-   }
-}
-
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.0.3

+ *

+ * Copyright (C) 1999-2007  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.

+ */

+

+#include "main/glheader.h"

+#include "main/colormac.h"

+#include "program/prog_instruction.h"

+

+#include "s_context.h"

+#include "s_fragprog.h"

+#include "s_span.h"

+

+

+/**

+ * Apply texture object's swizzle (X/Y/Z/W/0/1) to incoming 'texel'

+ * and return results in 'colorOut'.

+ */

+static INLINE void

+swizzle_texel(const GLfloat texel[4], GLfloat colorOut[4], GLuint swizzle)

+{

+   if (swizzle == SWIZZLE_NOOP) {

+      COPY_4V(colorOut, texel);

+   }

+   else {

+      GLfloat vector[6];

+      vector[SWIZZLE_X] = texel[0];

+      vector[SWIZZLE_Y] = texel[1];

+      vector[SWIZZLE_Z] = texel[2];

+      vector[SWIZZLE_W] = texel[3];

+      vector[SWIZZLE_ZERO] = 0.0F;

+      vector[SWIZZLE_ONE] = 1.0F;

+      colorOut[0] = vector[GET_SWZ(swizzle, 0)];

+      colorOut[1] = vector[GET_SWZ(swizzle, 1)];

+      colorOut[2] = vector[GET_SWZ(swizzle, 2)];

+      colorOut[3] = vector[GET_SWZ(swizzle, 3)];

+   }

+}

+

+

+/**

+ * Fetch a texel with given lod.

+ * Called via machine->FetchTexelLod()

+ */

+static void

+fetch_texel_lod( struct gl_context *ctx, const GLfloat texcoord[4], GLfloat lambda,

+                 GLuint unit, GLfloat color[4] )

+{

+   const struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;

+

+   if (texObj) {

+      SWcontext *swrast = SWRAST_CONTEXT(ctx);

+      GLfloat rgba[4];

+

+      lambda = CLAMP(lambda, texObj->MinLod, texObj->MaxLod);

+

+      swrast->TextureSample[unit](ctx, texObj, 1,

+                                  (const GLfloat (*)[4]) texcoord,

+                                  &lambda, &rgba);

+      swizzle_texel(rgba, color, texObj->_Swizzle);

+   }

+   else {

+      ASSIGN_4V(color, 0.0F, 0.0F, 0.0F, 1.0F);

+   }

+}

+

+

+/**

+ * Fetch a texel with the given partial derivatives to compute a level

+ * of detail in the mipmap.

+ * Called via machine->FetchTexelDeriv()

+ * \param lodBias  the lod bias which may be specified by a TXB instruction,

+ *                 otherwise zero.

+ */

+static void

+fetch_texel_deriv( struct gl_context *ctx, const GLfloat texcoord[4],

+                   const GLfloat texdx[4], const GLfloat texdy[4],

+                   GLfloat lodBias, GLuint unit, GLfloat color[4] )

+{

+   SWcontext *swrast = SWRAST_CONTEXT(ctx);

+   const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];

+   const struct gl_texture_object *texObj = texUnit->_Current;

+

+   if (texObj) {

+      const struct gl_texture_image *texImg =

+         texObj->Image[0][texObj->BaseLevel];

+      const GLfloat texW = (GLfloat) texImg->WidthScale;

+      const GLfloat texH = (GLfloat) texImg->HeightScale;

+      GLfloat lambda;

+      GLfloat rgba[4];

+

+      lambda = _swrast_compute_lambda(texdx[0], texdy[0], /* ds/dx, ds/dy */

+                                      texdx[1], texdy[1], /* dt/dx, dt/dy */

+                                      texdx[3], texdy[3], /* dq/dx, dq/dy */

+                                      texW, texH,

+                                      texcoord[0], texcoord[1], texcoord[3],

+                                      1.0F / texcoord[3]);

+

+      lambda += lodBias + texUnit->LodBias + texObj->LodBias;

+

+      lambda = CLAMP(lambda, texObj->MinLod, texObj->MaxLod);

+

+      swrast->TextureSample[unit](ctx, texObj, 1,

+                                  (const GLfloat (*)[4]) texcoord,

+                                  &lambda, &rgba);

+      swizzle_texel(rgba, color, texObj->_Swizzle);

+   }

+   else {

+      ASSIGN_4V(color, 0.0F, 0.0F, 0.0F, 1.0F);

+   }

+}

+

+

+/**

+ * Initialize the virtual fragment program machine state prior to running

+ * fragment program on a fragment.  This involves initializing the input

+ * registers, condition codes, etc.

+ * \param machine  the virtual machine state to init

+ * \param program  the fragment program we're about to run

+ * \param span  the span of pixels we'll operate on

+ * \param col  which element (column) of the span we'll operate on

+ */

+static void

+init_machine(struct gl_context *ctx, struct gl_program_machine *machine,

+             const struct gl_fragment_program *program,

+             const SWspan *span, GLuint col)

+{

+   GLfloat *wpos = span->array->attribs[FRAG_ATTRIB_WPOS][col];

+

+   if (program->Base.Target == GL_FRAGMENT_PROGRAM_NV) {

+      /* Clear temporary registers (undefined for ARB_f_p) */

+      memset(machine->Temporaries, 0, MAX_PROGRAM_TEMPS * 4 * sizeof(GLfloat));

+   }

+

+   /* ARB_fragment_coord_conventions */

+   if (program->OriginUpperLeft)

+      wpos[1] = ctx->DrawBuffer->Height - 1 - wpos[1];

+   if (!program->PixelCenterInteger) {

+      wpos[0] += 0.5F;

+      wpos[1] += 0.5F;

+   }

+

+   /* Setup pointer to input attributes */

+   machine->Attribs = span->array->attribs;

+

+   machine->DerivX = (GLfloat (*)[4]) span->attrStepX;

+   machine->DerivY = (GLfloat (*)[4]) span->attrStepY;

+   machine->NumDeriv = FRAG_ATTRIB_MAX;

+

+   machine->Samplers = program->Base.SamplerUnits;

+

+   /* if running a GLSL program (not ARB_fragment_program) */

+   if (ctx->Shader.CurrentFragmentProgram) {

+      /* Store front/back facing value */

+      machine->Attribs[FRAG_ATTRIB_FACE][col][0] = 1.0F - span->facing;

+   }

+

+   machine->CurElement = col;

+

+   /* init condition codes */

+   machine->CondCodes[0] = COND_EQ;

+   machine->CondCodes[1] = COND_EQ;

+   machine->CondCodes[2] = COND_EQ;

+   machine->CondCodes[3] = COND_EQ;

+

+   /* init call stack */

+   machine->StackDepth = 0;

+

+   machine->FetchTexelLod = fetch_texel_lod;

+   machine->FetchTexelDeriv = fetch_texel_deriv;

+}

+

+

+/**

+ * Run fragment program on the pixels in span from 'start' to 'end' - 1.

+ */

+static void

+run_program(struct gl_context *ctx, SWspan *span, GLuint start, GLuint end)

+{

+   SWcontext *swrast = SWRAST_CONTEXT(ctx);

+   const struct gl_fragment_program *program = ctx->FragmentProgram._Current;

+   const GLbitfield64 outputsWritten = program->Base.OutputsWritten;

+   struct gl_program_machine *machine = &swrast->FragProgMachine;

+   GLuint i;

+

+   for (i = start; i < end; i++) {

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

+         init_machine(ctx, machine, program, span, i);

+

+         if (_mesa_execute_program(ctx, &program->Base, machine)) {

+

+            /* Store result color */

+	    if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_COLOR)) {

+               COPY_4V(span->array->attribs[FRAG_ATTRIB_COL0][i],

+                       machine->Outputs[FRAG_RESULT_COLOR]);

+            }

+            else {

+               /* Multiple drawbuffers / render targets

+                * Note that colors beyond 0 and 1 will overwrite other

+                * attributes, such as FOGC, TEX0, TEX1, etc.  That's OK.

+                */

+               GLuint buf;

+               for (buf = 0; buf < ctx->DrawBuffer->_NumColorDrawBuffers; buf++) {

+                  if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DATA0 + buf)) {

+                     COPY_4V(span->array->attribs[FRAG_ATTRIB_COL0 + buf][i],

+                             machine->Outputs[FRAG_RESULT_DATA0 + buf]);

+                  }

+               }

+            }

+

+            /* Store result depth/z */

+            if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {

+               const GLfloat depth = machine->Outputs[FRAG_RESULT_DEPTH][2];

+               if (depth <= 0.0)

+                  span->array->z[i] = 0;

+               else if (depth >= 1.0)

+                  span->array->z[i] = ctx->DrawBuffer->_DepthMax;

+               else

+                  span->array->z[i] = IROUND(depth * ctx->DrawBuffer->_DepthMaxF);

+            }

+         }

+         else {

+            /* killed fragment */

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

+            span->writeAll = GL_FALSE;

+         }

+      }

+   }

+}

+

+

+/**

+ * Execute the current fragment program for all the fragments

+ * in the given span.

+ */

+void

+_swrast_exec_fragment_program( struct gl_context *ctx, SWspan *span )

+{

+   const struct gl_fragment_program *program = ctx->FragmentProgram._Current;

+

+   /* incoming colors should be floats */

+   if (program->Base.InputsRead & FRAG_BIT_COL0) {

+      ASSERT(span->array->ChanType == GL_FLOAT);

+   }

+

+   run_program(ctx, span, 0, span->end);

+

+   if (program->Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_COLOR)) {

+      span->interpMask &= ~SPAN_RGBA;

+      span->arrayMask |= SPAN_RGBA;

+   }

+

+   if (program->Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {

+      span->interpMask &= ~SPAN_Z;

+      span->arrayMask |= SPAN_Z;

+   }

+}

+