move _swrast_texture_table_lookup() to _mesa_lookup_rgba_chan()

1 files changed, 2 insertions, 272 deletions

diff --git a/src/mesa/swrast/s_texture.c b/src/mesa/swrast/s_texture.c
index 5dff9874d52..22d193381ba 100644
--- a/src/mesa/swrast/s_texture.c
+++ b/src/mesa/swrast/s_texture.c
@@ -28,6 +28,7 @@
 #include "colormac.h"
 #include "macros.h"
 #include "imports.h"
+#include "pixel.h"
 #include "texformat.h"
 #include "teximage.h"
 
@@ -344,277 +345,6 @@ repeat_remainder(GLint a, GLint b)
 #define K1BIT  32
 
 
-/*
- * Do the lookup for GL_SGI_texture_color_table.
- * XXX merge with _mesa_lookup_rgba in pixel.c
- */
-void
-_swrast_texture_table_lookup(const struct gl_color_table *table,
-                             GLuint n, GLchan rgba[][4])
-{
-   if (!table->Table || table->Size == 0)
-      return;
-
-   switch (table->Format) {
-      case GL_INTENSITY:
-         /* replace RGBA with I */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-               GLchan c;
-               CLAMPED_FLOAT_TO_CHAN(c, lut[j]);
-               rgba[i][RCOMP] = rgba[i][GCOMP] =
-                  rgba[i][BCOMP] = rgba[i][ACOMP] = c;
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  const GLchan c = lut[rgba[i][RCOMP]];
-                  rgba[i][RCOMP] = rgba[i][GCOMP] =
-                     rgba[i][BCOMP] = rgba[i][ACOMP] = c;
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-                  rgba[i][RCOMP] = rgba[i][GCOMP] =
-                     rgba[i][BCOMP] = rgba[i][ACOMP] = lut[j];
-               }
-            }
-         }
-         break;
-      case GL_LUMINANCE:
-         /* replace RGB with L */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-               GLchan c;
-               CLAMPED_FLOAT_TO_CHAN(c, lut[j]);
-               rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = c;
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  const GLchan c = lut[rgba[i][RCOMP]];
-                  rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = c;
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-                  rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = lut[j];
-               }
-            }
-         }
-         break;
-      case GL_ALPHA:
-         /* replace A with A */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint j = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-               GLchan c;
-               CLAMPED_FLOAT_TO_CHAN(c, lut[j]);
-               rgba[i][ACOMP] = c;
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  rgba[i][ACOMP] = lut[rgba[i][ACOMP]];
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint j = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-                  rgba[i][ACOMP] = lut[j];
-               }
-            }
-         }
-         break;
-      case GL_LUMINANCE_ALPHA:
-         /* replace RGBA with LLLA */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jL = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-               GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-               GLchan luminance, alpha;
-               CLAMPED_FLOAT_TO_CHAN(luminance, lut[jL * 2 + 0]);
-               CLAMPED_FLOAT_TO_CHAN(alpha, lut[jA * 2 + 1]);
-               rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = luminance;
-               rgba[i][ACOMP] = alpha;;
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLchan l = lut[rgba[i][RCOMP] * 2 + 0];
-                  GLchan a = lut[rgba[i][ACOMP] * 2 + 1];;
-                  rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = l;
-                  rgba[i][ACOMP] = a;
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint jL = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-                  GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-                  GLchan luminance = lut[jL * 2 + 0];
-                  GLchan alpha     = lut[jA * 2 + 1];
-                  rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = luminance;
-                  rgba[i][ACOMP] = alpha;
-               }
-            }
-         }
-         break;
-      case GL_RGB:
-         /* replace RGB with RGB */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-               GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
-               GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][RCOMP], lut[jR * 3 + 0]);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][GCOMP], lut[jG * 3 + 1]);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][BCOMP], lut[jB * 3 + 2]);
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  rgba[i][RCOMP] = lut[rgba[i][RCOMP] * 3 + 0];
-                  rgba[i][GCOMP] = lut[rgba[i][GCOMP] * 3 + 1];
-                  rgba[i][BCOMP] = lut[rgba[i][BCOMP] * 3 + 2];
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-                  GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
-                  GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
-                  rgba[i][RCOMP] = lut[jR * 3 + 0];
-                  rgba[i][GCOMP] = lut[jG * 3 + 1];
-                  rgba[i][BCOMP] = lut[jB * 3 + 2];
-               }
-            }
-         }
-         break;
-      case GL_RGBA:
-         /* replace RGBA with RGBA */
-         if (table->Type == GL_FLOAT) {
-            const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-            const GLfloat *lut = (const GLfloat *) table->Table;
-            GLuint i;
-            for (i = 0; i < n; i++) {
-               GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-               GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
-               GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
-               GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][RCOMP], lut[jR * 4 + 0]);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][GCOMP], lut[jG * 4 + 1]);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][BCOMP], lut[jB * 4 + 2]);
-               CLAMPED_FLOAT_TO_CHAN(rgba[i][ACOMP], lut[jA * 4 + 3]);
-            }
-         }
-         else {
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
-            if (table->Size == 256) {
-               /* common case */
-               const GLchan *lut = (const GLchan *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  rgba[i][RCOMP] = lut[rgba[i][RCOMP] * 4 + 0];
-                  rgba[i][GCOMP] = lut[rgba[i][GCOMP] * 4 + 1];
-                  rgba[i][BCOMP] = lut[rgba[i][BCOMP] * 4 + 2];
-                  rgba[i][ACOMP] = lut[rgba[i][ACOMP] * 4 + 3];
-               }
-            }
-            else
-#endif
-            {
-               const GLfloat scale = (GLfloat) (table->Size - 1) / CHAN_MAXF;
-               const GLfloat *lut = (const GLfloat *) table->Table;
-               GLuint i;
-               for (i = 0; i < n; i++) {
-                  GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
-                  GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
-                  GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
-                  GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
-                  CLAMPED_FLOAT_TO_CHAN(rgba[i][RCOMP], lut[jR * 4 + 0]);
-                  CLAMPED_FLOAT_TO_CHAN(rgba[i][GCOMP], lut[jG * 4 + 1]);
-                  CLAMPED_FLOAT_TO_CHAN(rgba[i][BCOMP], lut[jB * 4 + 2]);
-                  CLAMPED_FLOAT_TO_CHAN(rgba[i][ACOMP], lut[jA * 4 + 3]);
-               }
-            }
-         }
-         break;
-      default:
-         _mesa_problem(NULL, "Bad format in _swrast_texture_table_lookup");
-         return;
-   }
-}
-
-
 
 /*
  * Get texture palette entry.
@@ -4208,7 +3938,7 @@ _swrast_texture_span( GLcontext *ctx, struct sw_span *span )
 
          /* GL_SGI_texture_color_table */
          if (texUnit->ColorTableEnabled) {
-            _swrast_texture_table_lookup(&texUnit->ColorTable, span->end, texels);
+            _mesa_lookup_rgba_chan(&texUnit->ColorTable, span->end, texels);
          }
       }
    }