Add RGBA4444 and RGBA5551 texture formats.

6 files changed, 212 insertions, 0 deletions

diff --git a/src/mesa/main/colormac.h b/src/mesa/main/colormac.h
index a34bd2ed38..74692e9a98 100644
--- a/src/mesa/main/colormac.h
+++ b/src/mesa/main/colormac.h
@@ -195,6 +195,10 @@ do {						\
 #define PACK_COLOR_565_REV( X, Y, Z ) \
    (((X) & 0xf8) | ((Y) & 0xe0) >> 5 | (((Y) & 0x1c) << 11) | (((Z) & 0xf8) << 5))
 
+#define PACK_COLOR_5551( R, G, B, A )					\
+   ((((R) & 0xf8) << 8) | (((G) & 0xf8) << 3) | (((B) & 0xf8) >> 2) |	\
+    ((A) ? 1 : 0))
+
 #define PACK_COLOR_1555( A, B, G, R )					\
    ((((B) & 0xf8) << 7) | (((G) & 0xf8) << 2) | (((R) & 0xf8) >> 3) |	\
     ((A) ? 0x8000 : 0))
diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c
index 1dd7bdd9ce..08725846c6 100644
--- a/src/mesa/main/texformat.c
+++ b/src/mesa/main/texformat.c
@@ -871,6 +871,30 @@ const struct gl_texture_format _mesa_texformat_rgb565_rev = {
    store_texel_rgb565_rev		/* StoreTexel */
 };
 
+const struct gl_texture_format _mesa_texformat_rgba4444 = {
+   MESA_FORMAT_RGBA4444,		/* MesaFormat */
+   GL_RGBA,				/* BaseFormat */
+   GL_UNSIGNED_NORMALIZED_ARB,		/* DataType */
+   4,					/* RedBits */
+   4,					/* GreenBits */
+   4,					/* BlueBits */
+   4,					/* AlphaBits */
+   0,					/* LuminanceBits */
+   0,					/* IntensityBits */
+   0,					/* IndexBits */
+   0,					/* DepthBits */
+   0,					/* StencilBits */
+   2,					/* TexelBytes */
+   _mesa_texstore_rgba4444,		/* StoreTexImageFunc */
+   fetch_texel_1d_rgba4444,		/* FetchTexel1D */
+   fetch_texel_2d_rgba4444,		/* FetchTexel2D */
+   fetch_texel_3d_rgba4444,		/* FetchTexel3D */
+   NULL,				/* FetchTexel1Df */
+   NULL,				/* FetchTexel2Df */
+   NULL,				/* FetchTexel3Df */
+   store_texel_rgba4444			/* StoreTexel */
+};
+
 const struct gl_texture_format _mesa_texformat_argb4444 = {
    MESA_FORMAT_ARGB4444,		/* MesaFormat */
    GL_RGBA,				/* BaseFormat */
@@ -919,6 +943,30 @@ const struct gl_texture_format _mesa_texformat_argb4444_rev = {
    store_texel_argb4444_rev		/* StoreTexel */
 };
 
+const struct gl_texture_format _mesa_texformat_rgba5551 = {
+   MESA_FORMAT_RGBA5551,		/* MesaFormat */
+   GL_RGBA,				/* BaseFormat */
+   GL_UNSIGNED_NORMALIZED_ARB,		/* DataType */
+   5,					/* RedBits */
+   5,					/* GreenBits */
+   5,					/* BlueBits */
+   1,					/* AlphaBits */
+   0,					/* LuminanceBits */
+   0,					/* IntensityBits */
+   0,					/* IndexBits */
+   0,					/* DepthBits */
+   0,					/* StencilBits */
+   2,					/* TexelBytes */
+   _mesa_texstore_rgba5551,		/* StoreTexImageFunc */
+   fetch_texel_1d_rgba5551,		/* FetchTexel1D */
+   fetch_texel_2d_rgba5551,		/* FetchTexel2D */
+   fetch_texel_3d_rgba5551,		/* FetchTexel3D */
+   NULL,				/* FetchTexel1Df */
+   NULL,				/* FetchTexel2Df */
+   NULL,				/* FetchTexel3Df */
+   store_texel_rgba5551			/* StoreTexel */
+};
+
 const struct gl_texture_format _mesa_texformat_argb1555 = {
    MESA_FORMAT_ARGB1555,		/* MesaFormat */
    GL_RGBA,				/* BaseFormat */
diff --git a/src/mesa/main/texformat.h b/src/mesa/main/texformat.h
index 18900fe08b..b1604d4a49 100644
--- a/src/mesa/main/texformat.h
+++ b/src/mesa/main/texformat.h
@@ -70,8 +70,10 @@ enum _format {
    MESA_FORMAT_BGR888,		/*           BBBB BBBB GGGG GGGG RRRR RRRR */
    MESA_FORMAT_RGB565,		/*                     RRRR RGGG GGGB BBBB */
    MESA_FORMAT_RGB565_REV,	/*                     GGGB BBBB RRRR RGGG */
+   MESA_FORMAT_RGBA4444,        /*                     RRRR GGGG BBBB AAAA */
    MESA_FORMAT_ARGB4444,	/*                     AAAA RRRR GGGG BBBB */
    MESA_FORMAT_ARGB4444_REV,	/*                     GGGG BBBB AAAA RRRR */
+   MESA_FORMAT_RGBA5551,        /*                     RRRR RGGG GGBB BBBA */
    MESA_FORMAT_ARGB1555,	/*                     ARRR RRGG GGGB BBBB */
    MESA_FORMAT_ARGB1555_REV,	/*                     GGGB BBBB ARRR RRGG */
    MESA_FORMAT_AL88,		/*                     AAAA AAAA LLLL LLLL */
@@ -200,10 +202,12 @@ extern const struct gl_texture_format _mesa_texformat_rgb888;
 extern const struct gl_texture_format _mesa_texformat_bgr888;
 extern const struct gl_texture_format _mesa_texformat_rgb565;
 extern const struct gl_texture_format _mesa_texformat_rgb565_rev;
+extern const struct gl_texture_format _mesa_texformat_rgba4444;
 extern const struct gl_texture_format _mesa_texformat_argb4444;
 extern const struct gl_texture_format _mesa_texformat_argb4444_rev;
 extern const struct gl_texture_format _mesa_texformat_argb1555;
 extern const struct gl_texture_format _mesa_texformat_argb1555_rev;
+extern const struct gl_texture_format _mesa_texformat_rgba5551;
 extern const struct gl_texture_format _mesa_texformat_al88;
 extern const struct gl_texture_format _mesa_texformat_al88_rev;
 extern const struct gl_texture_format _mesa_texformat_rgb332;
diff --git a/src/mesa/main/texformat_tmp.h b/src/mesa/main/texformat_tmp.h
index 7499ba7b36..197593df74 100644
--- a/src/mesa/main/texformat_tmp.h
+++ b/src/mesa/main/texformat_tmp.h
@@ -803,6 +803,30 @@ static void store_texel_rgb565_rev(struct gl_texture_image *texImage,
 }
 #endif
 
+/* MESA_FORMAT_RGBA4444 ******************************************************/
+
+/* Fetch texel from 1D, 2D or 3D argb444 texture, return 4 GLchans */
+static void FETCH(rgba4444)( const struct gl_texture_image *texImage,
+			     GLint i, GLint j, GLint k, GLchan *texel )
+{
+   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
+   const GLushort s = *src;
+   texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 12) & 0xf) | ((s >> 8) & 0xf0) );
+   texel[GCOMP] = UBYTE_TO_CHAN( ((s >>  8) & 0xf) | ((s >> 4) & 0xf0) );
+   texel[BCOMP] = UBYTE_TO_CHAN( ((s >>  4) & 0xf) | ((s     ) & 0xf0) );
+   texel[ACOMP] = UBYTE_TO_CHAN( ((s      ) & 0xf) | ((s << 4) & 0xf0) );
+}
+
+#if DIM == 3
+static void store_texel_rgba4444(struct gl_texture_image *texImage,
+                                 GLint i, GLint j, GLint k, const void *texel)
+{
+   const GLubyte *rgba = (const GLubyte *) texel;
+   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
+   *dst = PACK_COLOR_4444(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
+}
+#endif
+
 
 /* MESA_FORMAT_ARGB4444 ******************************************************/
 
@@ -852,6 +876,29 @@ static void store_texel_argb4444_rev(struct gl_texture_image *texImage,
 }
 #endif
 
+/* MESA_FORMAT_RGBA5551 ******************************************************/
+
+/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */
+static void FETCH(rgba5551)( const struct gl_texture_image *texImage,
+			     GLint i, GLint j, GLint k, GLchan *texel )
+{
+   const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
+   const GLushort s = *src;
+   texel[RCOMP] = UBYTE_TO_CHAN( ((s >>  8) & 0xf8) | ((s >> 13) & 0x7) );
+   texel[GCOMP] = UBYTE_TO_CHAN( ((s >>  3) & 0xf8) | ((s >>  8) & 0x7) );
+   texel[BCOMP] = UBYTE_TO_CHAN( ((s <<  2) & 0xf8) | ((s >>  3) & 0x7) );
+   texel[ACOMP] = UBYTE_TO_CHAN( ((s) & 0x01) ? 255 : 0);
+}
+
+#if DIM == 3
+static void store_texel_rgba5551(struct gl_texture_image *texImage,
+                                 GLint i, GLint j, GLint k, const void *texel)
+{
+   const GLubyte *rgba = (const GLubyte *) texel;
+   GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
+   *dst = PACK_COLOR_5551(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
+}
+#endif
 
 /* MESA_FORMAT_ARGB1555 ******************************************************/
 
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c
index 4b2b129468..67cfca2565 100644
--- a/src/mesa/main/texstore.c
+++ b/src/mesa/main/texstore.c
@@ -1898,6 +1898,60 @@ _mesa_texstore_bgr888(TEXSTORE_PARAMS)
    return GL_TRUE;
 }
 
+GLboolean
+_mesa_texstore_rgba4444(TEXSTORE_PARAMS)
+{
+   ASSERT(dstFormat == &_mesa_texformat_rgba4444);
+   ASSERT(dstFormat->TexelBytes == 2);
+
+   if (!ctx->_ImageTransferState &&
+       !srcPacking->SwapBytes &&
+       dstFormat == &_mesa_texformat_rgba4444 &&
+       baseInternalFormat == GL_RGBA &&
+       srcFormat == GL_RGBA &&
+       srcType == GL_UNSIGNED_SHORT_4_4_4_4){
+      /* simple memcpy path */
+      memcpy_texture(ctx, dims,
+                     dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+                     dstRowStride,
+                     dstImageOffsets,
+                     srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+                     srcAddr, srcPacking);
+   }
+   else {
+      /* general path */
+      const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+                                                 baseInternalFormat,
+                                                 dstFormat->BaseFormat,
+                                                 srcWidth, srcHeight, srcDepth,
+                                                 srcFormat, srcType, srcAddr,
+                                                 srcPacking);
+      const GLchan *src = tempImage;
+      GLint img, row, col;
+      if (!tempImage)
+         return GL_FALSE;
+      _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+      for (img = 0; img < srcDepth; img++) {
+         GLubyte *dstRow = (GLubyte *) dstAddr
+            + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+            + dstYoffset * dstRowStride
+            + dstXoffset * dstFormat->TexelBytes;
+         for (row = 0; row < srcHeight; row++) {
+            GLushort *dstUS = (GLushort *) dstRow;
+	    for (col = 0; col < srcWidth; col++) {
+	      dstUS[col] = PACK_COLOR_4444( CHAN_TO_UBYTE(src[RCOMP]),
+					    CHAN_TO_UBYTE(src[GCOMP]),
+					    CHAN_TO_UBYTE(src[BCOMP]),
+					    CHAN_TO_UBYTE(src[ACOMP]) );
+	      src += 4;
+            }
+            dstRow += dstRowStride;
+         }
+      }
+      _mesa_free((void *) tempImage);
+   }
+   return GL_TRUE;
+}
 
 GLboolean
 _mesa_texstore_argb4444(TEXSTORE_PARAMS)
@@ -1966,7 +2020,60 @@ _mesa_texstore_argb4444(TEXSTORE_PARAMS)
    return GL_TRUE;
 }
 
+GLboolean
+_mesa_texstore_rgba5551(TEXSTORE_PARAMS)
+{
+   ASSERT(dstFormat == &_mesa_texformat_rgba5551);
+   ASSERT(dstFormat->TexelBytes == 2);
 
+   if (!ctx->_ImageTransferState &&
+       !srcPacking->SwapBytes &&
+       dstFormat == &_mesa_texformat_rgba5551 &&
+       baseInternalFormat == GL_RGBA &&
+       srcFormat == GL_RGBA &&
+       srcType == GL_UNSIGNED_SHORT_5_5_5_1) {
+      /* simple memcpy path */
+      memcpy_texture(ctx, dims,
+                     dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+                     dstRowStride,
+                     dstImageOffsets,
+                     srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+                     srcAddr, srcPacking);
+   }
+   else {
+      /* general path */
+      const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
+                                                 baseInternalFormat,
+                                                 dstFormat->BaseFormat,
+                                                 srcWidth, srcHeight, srcDepth,
+                                                 srcFormat, srcType, srcAddr,
+                                                 srcPacking);
+      const GLchan *src =tempImage;
+      GLint img, row, col;
+      if (!tempImage)
+         return GL_FALSE;
+      _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
+      for (img = 0; img < srcDepth; img++) {
+         GLubyte *dstRow = (GLubyte *) dstAddr
+            + dstImageOffsets[dstZoffset + img] * dstFormat->TexelBytes
+            + dstYoffset * dstRowStride
+            + dstXoffset * dstFormat->TexelBytes;
+         for (row = 0; row < srcHeight; row++) {
+            GLushort *dstUS = (GLushort *) dstRow;
+	    for (col = 0; col < srcWidth; col++) {
+	       dstUS[col] = PACK_COLOR_5551( CHAN_TO_UBYTE(src[RCOMP]),
+					     CHAN_TO_UBYTE(src[GCOMP]),
+					     CHAN_TO_UBYTE(src[BCOMP]),
+					     CHAN_TO_UBYTE(src[ACOMP]) );
+	      src += 4;
+	    }
+            dstRow += dstRowStride;
+         }
+      }
+      _mesa_free((void *) tempImage);
+   }
+   return GL_TRUE;
+}
 
 GLboolean
 _mesa_texstore_argb1555(TEXSTORE_PARAMS)
diff --git a/src/mesa/main/texstore.h b/src/mesa/main/texstore.h
index c9edf14dbc..951d0a112b 100644
--- a/src/mesa/main/texstore.h
+++ b/src/mesa/main/texstore.h
@@ -46,8 +46,10 @@ extern GLboolean _mesa_texstore_rgb888(TEXSTORE_PARAMS);
 extern GLboolean _mesa_texstore_bgr888(TEXSTORE_PARAMS);
 extern GLboolean _mesa_texstore_rgb565(TEXSTORE_PARAMS);
 extern GLboolean _mesa_texstore_rgb565_rev(TEXSTORE_PARAMS);
+extern GLboolean _mesa_texstore_rgba4444(TEXSTORE_PARAMS);
 extern GLboolean _mesa_texstore_argb4444(TEXSTORE_PARAMS);
 extern GLboolean _mesa_texstore_argb4444_rev(TEXSTORE_PARAMS);
+extern GLboolean _mesa_texstore_rgba5551(TEXSTORE_PARAMS);
 extern GLboolean _mesa_texstore_argb1555(TEXSTORE_PARAMS);
 extern GLboolean _mesa_texstore_argb1555_rev(TEXSTORE_PARAMS);
 extern GLboolean _mesa_texstore_al88(TEXSTORE_PARAMS);