Mesa (master): mesa: added unsigned 16-bit/channel tex format
Brian Paul
brianp at kemper.freedesktop.org
Mon May 10 03:21:18 UTC 2010
Module: Mesa
Branch: master
Commit: 17e96718946486ef77927fcf3bb299d8bff32b98
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=17e96718946486ef77927fcf3bb299d8bff32b98
Author: Brian Paul <brianp at vmware.com>
Date: Sun May 9 19:28:10 2010 -0600
mesa: added unsigned 16-bit/channel tex format
---
src/mesa/main/formats.c | 9 +++++
src/mesa/main/formats.h | 1 +
src/mesa/main/texfetch.c | 7 ++++
src/mesa/main/texfetch_tmp.h | 31 +++++++++++++++++++-
src/mesa/main/texformat.c | 22 +++++++++-----
src/mesa/main/texstore.c | 67 +++++++++++++++++++++++++++++++++++++++++-
6 files changed, 127 insertions(+), 10 deletions(-)
diff --git a/src/mesa/main/formats.c b/src/mesa/main/formats.c
index 7f57fc0..3671140 100644
--- a/src/mesa/main/formats.c
+++ b/src/mesa/main/formats.c
@@ -721,6 +721,15 @@ static struct gl_format_info format_info[MESA_FORMAT_COUNT] =
16, 16, 16, 16,
0, 0, 0, 0, 0,
1, 1, 8
+ },
+ {
+ MESA_FORMAT_RGBA_16,
+ "MESA_FORMAT_RGBA_16",
+ GL_RGBA,
+ GL_UNSIGNED_NORMALIZED,
+ 16, 16, 16, 16,
+ 0, 0, 0, 0, 0,
+ 1, 1, 8
}
};
diff --git a/src/mesa/main/formats.h b/src/mesa/main/formats.h
index bfd4f20..c744688 100644
--- a/src/mesa/main/formats.h
+++ b/src/mesa/main/formats.h
@@ -146,6 +146,7 @@ typedef enum
MESA_FORMAT_SIGNED_RG_16, /* ushort[0]=R, ushort[1]=G */
MESA_FORMAT_SIGNED_RGB_16, /* ushort[0]=R, ushort[1]=G, ushort[2]=B */
MESA_FORMAT_SIGNED_RGBA_16, /* ... */
+ MESA_FORMAT_RGBA_16, /* ... */
/*@}*/
MESA_FORMAT_COUNT
diff --git a/src/mesa/main/texfetch.c b/src/mesa/main/texfetch.c
index 48a22c1..3169f3b 100644
--- a/src/mesa/main/texfetch.c
+++ b/src/mesa/main/texfetch.c
@@ -622,6 +622,13 @@ texfetch_funcs[MESA_FORMAT_COUNT] =
fetch_texel_3d_signed_rgba_16,
store_texel_signed_rgba_16
},
+ {
+ MESA_FORMAT_RGBA_16,
+ fetch_texel_1d_rgba_16,
+ fetch_texel_2d_rgba_16,
+ fetch_texel_3d_rgba_16,
+ store_texel_rgba_16
+ }
};
diff --git a/src/mesa/main/texfetch_tmp.h b/src/mesa/main/texfetch_tmp.h
index 4df2b19..280c8d9 100644
--- a/src/mesa/main/texfetch_tmp.h
+++ b/src/mesa/main/texfetch_tmp.h
@@ -1374,7 +1374,7 @@ store_texel_signed_rg_16(struct gl_texture_image *texImage,
#endif
-/* MESA_FORMAT_SIGNED_RGB_16 ***********************************************/
+/* MESA_FORMAT_SIGNED_RGBA_16 ***********************************************/
static void
FETCH(signed_rgb_16)(const struct gl_texture_image *texImage,
@@ -1430,6 +1430,35 @@ store_texel_signed_rgba_16(struct gl_texture_image *texImage,
+/* MESA_FORMAT_RGBA_16 ***********************************************/
+
+static void
+FETCH(rgba_16)(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
+{
+ const GLushort *s = TEXEL_ADDR(GLushort, texImage, i, j, k, 4);
+ texel[RCOMP] = USHORT_TO_FLOAT( s[0] );
+ texel[GCOMP] = USHORT_TO_FLOAT( s[1] );
+ texel[BCOMP] = USHORT_TO_FLOAT( s[2] );
+ texel[ACOMP] = USHORT_TO_FLOAT( s[3] );
+}
+
+#if DIM == 3
+static void
+store_texel_rgba_16(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ const GLushort *rgba = (const GLushort *) texel;
+ GLushort *dst = TEXEL_ADDR(GLushort, texImage, i, j, k, 4);
+ dst[0] = rgba[RCOMP];
+ dst[1] = rgba[GCOMP];
+ dst[2] = rgba[BCOMP];
+ dst[3] = rgba[ACOMP];
+}
+#endif
+
+
+
/* MESA_FORMAT_YCBCR *********************************************************/
/* Fetch texel from 1D, 2D or 3D ycbcr texture, return 4 GLfloats.
diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c
index 06e6fd9..d235485 100644
--- a/src/mesa/main/texformat.c
+++ b/src/mesa/main/texformat.c
@@ -61,12 +61,9 @@ _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat,
(void) type;
switch (internalFormat) {
- /* RGBA formats */
+ /* shallow RGBA formats */
case 4:
case GL_RGBA:
- case GL_RGB10_A2:
- case GL_RGBA12:
- case GL_RGBA16:
case GL_RGBA8:
return MESA_FORMAT_RGBA8888;
case GL_RGB5_A1:
@@ -76,12 +73,15 @@ _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat,
case GL_RGBA4:
return MESA_FORMAT_ARGB4444;
- /* RGB formats */
+ /* deep RGBA formats */
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return MESA_FORMAT_RGBA_16;
+
+ /* shallow RGB formats */
case 3:
case GL_RGB:
- case GL_RGB10:
- case GL_RGB12:
- case GL_RGB16:
case GL_RGB8:
return MESA_FORMAT_RGB888;
case GL_R3_G3_B2:
@@ -91,6 +91,12 @@ _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat,
case GL_RGB5:
return MESA_FORMAT_RGB565;
+ /* deep RGB formats */
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ return MESA_FORMAT_RGBA_16;
+
/* Alpha formats */
case GL_ALPHA:
case GL_ALPHA4:
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c
index 2356b24..ce05652 100644
--- a/src/mesa/main/texstore.c
+++ b/src/mesa/main/texstore.c
@@ -2225,6 +2225,70 @@ _mesa_texstore_al1616(TEXSTORE_PARAMS)
static GLboolean
+_mesa_texstore_rgba_16(TEXSTORE_PARAMS)
+{
+ const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
+ const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
+
+ ASSERT(dstFormat == MESA_FORMAT_RGBA_16);
+ ASSERT(texelBytes == 8);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == GL_RGBA &&
+ srcFormat == GL_RGBA &&
+ srcType == GL_UNSIGNED_SHORT) {
+ /* 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 GLfloat *tempImage = make_temp_float_image(ctx, dims,
+ baseInternalFormat,
+ baseFormat,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
+ const GLfloat *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] * texelBytes
+ + dstYoffset * dstRowStride
+ + dstXoffset * texelBytes;
+ for (row = 0; row < srcHeight; row++) {
+ GLushort *dstUS = (GLushort *) dstRow;
+ for (col = 0; col < srcWidth; col++) {
+ GLushort r, g, b, a;
+
+ UNCLAMPED_FLOAT_TO_USHORT(r, src[0]);
+ UNCLAMPED_FLOAT_TO_USHORT(g, src[1]);
+ UNCLAMPED_FLOAT_TO_USHORT(b, src[2]);
+ UNCLAMPED_FLOAT_TO_USHORT(a, src[3]);
+ dstUS[col*4+0] = r;
+ dstUS[col*4+1] = g;
+ dstUS[col*4+2] = b;
+ dstUS[col*4+3] = a;
+ src += 4;
+ }
+ dstRow += dstRowStride;
+ }
+ }
+ free((void *) tempImage);
+ }
+ return GL_TRUE;
+}
+
+
+static GLboolean
_mesa_texstore_signed_rgba_16(TEXSTORE_PARAMS)
{
const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
@@ -3420,7 +3484,8 @@ texstore_funcs[MESA_FORMAT_COUNT] =
{ MESA_FORMAT_SIGNED_R_16, _mesa_texstore_signed_rgba_16 },
{ MESA_FORMAT_SIGNED_RG_16, _mesa_texstore_signed_rgba_16 },
{ MESA_FORMAT_SIGNED_RGB_16, _mesa_texstore_signed_rgba_16 },
- { MESA_FORMAT_SIGNED_RGBA_16, _mesa_texstore_signed_rgba_16 }
+ { MESA_FORMAT_SIGNED_RGBA_16, _mesa_texstore_signed_rgba_16 },
+ { MESA_FORMAT_RGBA_16, _mesa_texstore_rgba_16 }
};
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