Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers...

[reactos.git] / reactos / dll / opengl / mesa / swrast / s_alpha.c

diff --git a/reactos/dll/opengl/mesa/swrast/s_alpha.c b/reactos/dll/opengl/mesa/swrast/s_alpha.c
deleted file mode 100644 (file)
index 32f66b9..0000000
--- a/reactos/dll/opengl/mesa/swrast/s_alpha.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * Mesa 3-D graphics library
- * Version:  6.5.2
- *
- * 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"),
- * 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.
- */
-
-/**
- * \file swrast/s_alpha.c
- * \brief Functions to apply alpha test.
- */
-
-#include <precomp.h>
-
-#define ALPHA_TEST(ALPHA, LOOP_CODE)           \
-do {                                           \
-   switch (ctx->Color.AlphaFunc) {             \
-      case GL_LESS:                            \
-         for (i = 0; i < n; i++) {             \
-            mask[i] &= (ALPHA < ref);          \
-            LOOP_CODE;                         \
-         }                                     \
-         break;                                        \
-      case GL_LEQUAL:                          \
-         for (i = 0; i < n; i++) {             \
-            mask[i] &= (ALPHA <= ref);         \
-            LOOP_CODE;                         \
-         }                                     \
-         break;                                        \
-      case GL_GEQUAL:                          \
-         for (i = 0; i < n; i++) {             \
-            mask[i] &= (ALPHA >= ref);         \
-            LOOP_CODE;                         \
-         }                                     \
-         break;                                        \
-      case GL_GREATER:                         \
-         for (i = 0; i < n; i++) {             \
-            mask[i] &= (ALPHA > ref);          \
-            LOOP_CODE;                         \
-         }                                     \
-         break;                                        \
-      case GL_NOTEQUAL:                                \
-         for (i = 0; i < n; i++) {             \
-            mask[i] &= (ALPHA != ref);         \
-            LOOP_CODE;                         \
-         }                                     \
-         break;                                        \
-      case GL_EQUAL:                           \
-         for (i = 0; i < n; i++) {             \
-            mask[i] &= (ALPHA == ref);         \
-            LOOP_CODE;                         \
-         }                                     \
-         break;                                        \
-      default:                                 \
-         _mesa_problem(ctx, "Invalid alpha test in _swrast_alpha_test" ); \
-         return 0;                             \
-   }                                           \
-} while (0)
-
-
-
-/**
- * Perform the alpha test for an array of pixels.
- * For pixels that fail the test, mask[i] will be set to 0.
- * \return  0 if all pixels in the span failed the alpha test,
- *          1 if one or more pixels passed the alpha test.
- */
-GLint
-_swrast_alpha_test(const struct gl_context *ctx, SWspan *span)
-{
-   const GLuint n = span->end;
-   GLubyte *mask = span->array->mask;
-   GLuint i;
-
-   if (ctx->Color.AlphaFunc == GL_ALWAYS) {
-      /* do nothing */
-      return 1;
-   }
-   else if (ctx->Color.AlphaFunc == GL_NEVER) {
-      /* All pixels failed - caller should check for this return value and
-       * act accordingly.
-       */
-      span->writeAll = GL_FALSE;
-      return 0;
-   }
-
-   if (span->arrayMask & SPAN_RGBA) {
-      /* Use array's alpha values */
-      if (span->array->ChanType == GL_UNSIGNED_BYTE) {
-         GLubyte (*rgba)[4] = span->array->rgba8;
-         GLubyte ref;
-         CLAMPED_FLOAT_TO_UBYTE(ref, ctx->Color.AlphaRef);
-         ALPHA_TEST(rgba[i][ACOMP], ;);
-      }
-      else if (span->array->ChanType == GL_UNSIGNED_SHORT) {
-         GLushort (*rgba)[4] = span->array->rgba16;
-         GLushort ref;
-         CLAMPED_FLOAT_TO_USHORT(ref, ctx->Color.AlphaRef);
-         ALPHA_TEST(rgba[i][ACOMP], ;);
-      }
-      else {
-         GLfloat (*rgba)[4] = span->array->attribs[FRAG_ATTRIB_COL];
-         const GLfloat ref = ctx->Color.AlphaRef;
-         ALPHA_TEST(rgba[i][ACOMP], ;);
-      }
-   }
-   else {
-      /* Interpolate alpha values */
-      ASSERT(span->interpMask & SPAN_RGBA);
-      if (span->array->ChanType == GL_UNSIGNED_BYTE) {
-         const GLfixed alphaStep = span->alphaStep;
-         GLfixed alpha = span->alpha;
-         GLubyte ref;
-         CLAMPED_FLOAT_TO_UBYTE(ref, ctx->Color.AlphaRef);
-         ALPHA_TEST(FixedToInt(alpha), alpha += alphaStep);
-      }
-      else if (span->array->ChanType == GL_UNSIGNED_SHORT) {
-         const GLfixed alphaStep = span->alphaStep;
-         GLfixed alpha = span->alpha;
-         GLushort ref;
-         CLAMPED_FLOAT_TO_USHORT(ref, ctx->Color.AlphaRef);
-         ALPHA_TEST(FixedToInt(alpha), alpha += alphaStep);
-      }
-      else {
-         const GLfloat alphaStep = FixedToFloat(span->alphaStep);
-         GLfloat alpha = FixedToFloat(span->alpha);
-         const GLfloat ref = ctx->Color.AlphaRef;
-         ALPHA_TEST(alpha, alpha += alphaStep);
-      }
-   }
-
-   span->writeAll = GL_FALSE;
-
-   /* XXX examine mask[] values? */
-   return 1;
-}