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Diffstat (limited to 'mesalib/src/mesa/main/formats.c')
-rw-r--r--mesalib/src/mesa/main/formats.c196
1 files changed, 146 insertions, 50 deletions
diff --git a/mesalib/src/mesa/main/formats.c b/mesalib/src/mesa/main/formats.c
index 96317dbf4..cecb70c01 100644
--- a/mesalib/src/mesa/main/formats.c
+++ b/mesalib/src/mesa/main/formats.c
@@ -2516,14 +2516,16 @@ _mesa_format_to_type_and_comps(gl_format format,
/**
* Check if a gl_format exactly matches a GL formaat/type combination
* such that we can use memcpy() from one to the other.
- *
- * Note: this matching assumes that GL_PACK/UNPACK_SWAP_BYTES is unset.
- *
+ * \param gl_format a MESA_FORMAT_x value
+ * \param format the user-specified image format
+ * \param type the user-specified image datatype
+ * \param swapBytes typically the current pixel pack/unpack byteswap state
* \return GL_TRUE if the formats match, GL_FALSE otherwise.
*/
GLboolean
_mesa_format_matches_format_and_type(gl_format gl_format,
- GLenum format, GLenum type)
+ GLenum format, GLenum type,
+ GLboolean swapBytes)
{
const GLboolean littleEndian = _mesa_little_endian();
@@ -2543,21 +2545,77 @@ _mesa_format_matches_format_and_type(gl_format gl_format,
return GL_FALSE;
case MESA_FORMAT_RGBA8888:
- return ((format == GL_RGBA && (type == GL_UNSIGNED_INT_8_8_8_8 ||
- (type == GL_UNSIGNED_BYTE && !littleEndian))) ||
- (format == GL_ABGR_EXT && (type == GL_UNSIGNED_INT_8_8_8_8_REV ||
- (type == GL_UNSIGNED_BYTE && littleEndian))));
+ if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8 && !swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV && swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_RGBA && type == GL_UNSIGNED_BYTE && !littleEndian)
+ return GL_TRUE;
+
+ if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8_REV
+ && !swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8
+ && swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_ABGR_EXT && type == GL_UNSIGNED_BYTE && littleEndian)
+ return GL_TRUE;
+
+ return GL_FALSE;
case MESA_FORMAT_RGBA8888_REV:
- return ((format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV));
+ if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
+ !swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8 && swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_RGBA && type == GL_UNSIGNED_BYTE && littleEndian)
+ return GL_TRUE;
+
+ if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8 &&
+ !swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
+ swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_ABGR_EXT && type == GL_UNSIGNED_BYTE && !littleEndian)
+ return GL_TRUE;
+
+ return GL_FALSE;
case MESA_FORMAT_ARGB8888:
- return ((format == GL_BGRA && (type == GL_UNSIGNED_INT_8_8_8_8_REV ||
- (type == GL_UNSIGNED_BYTE && littleEndian))));
+ if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
+ !swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8 && swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_BGRA && type == GL_UNSIGNED_BYTE && littleEndian)
+ return GL_TRUE;
+
+ return GL_FALSE;
case MESA_FORMAT_ARGB8888_REV:
- return ((format == GL_BGRA && (type == GL_UNSIGNED_INT_8_8_8_8 ||
- (type == GL_UNSIGNED_BYTE && !littleEndian))));
+ if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8 && !swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
+ swapBytes)
+ return GL_TRUE;
+
+ if (format == GL_BGRA && type == GL_UNSIGNED_BYTE && !littleEndian)
+ return GL_TRUE;
+
+ return GL_FALSE;
case MESA_FORMAT_RGBX8888:
case MESA_FORMAT_RGBX8888_REV:
@@ -2568,13 +2626,14 @@ _mesa_format_matches_format_and_type(gl_format gl_format,
return GL_FALSE;
case MESA_FORMAT_RGB888:
- return format == GL_RGB && type == GL_UNSIGNED_BYTE && littleEndian;
+ return format == GL_BGR && type == GL_UNSIGNED_BYTE && littleEndian;
case MESA_FORMAT_BGR888:
- return GL_FALSE;
+ return format == GL_RGB && type == GL_UNSIGNED_BYTE && littleEndian;
case MESA_FORMAT_RGB565:
- return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5;
+ return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5 && !swapBytes;
+
case MESA_FORMAT_RGB565_REV:
/* Some of the 16-bit MESA_FORMATs that would seem to correspond to
* GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed,
@@ -2583,15 +2642,20 @@ _mesa_format_matches_format_and_type(gl_format gl_format,
return GL_FALSE;
case MESA_FORMAT_ARGB4444:
- return format == GL_BGRA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV;
+ return format == GL_BGRA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV &&
+ !swapBytes;
+
case MESA_FORMAT_ARGB4444_REV:
return GL_FALSE;
case MESA_FORMAT_RGBA5551:
- return format == GL_RGBA && type == GL_UNSIGNED_SHORT_5_5_5_1;
+ return format == GL_RGBA && type == GL_UNSIGNED_SHORT_5_5_5_1 &&
+ !swapBytes;
case MESA_FORMAT_ARGB1555:
- return format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV;
+ return format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV &&
+ !swapBytes;
+
case MESA_FORMAT_ARGB1555_REV:
return GL_FALSE;
@@ -2603,7 +2667,7 @@ _mesa_format_matches_format_and_type(gl_format gl_format,
return GL_FALSE;
case MESA_FORMAT_AL1616:
- return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian;
+ return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian && !swapBytes;
case MESA_FORMAT_AL1616_REV:
return GL_FALSE;
@@ -2613,15 +2677,18 @@ _mesa_format_matches_format_and_type(gl_format gl_format,
case MESA_FORMAT_A8:
return format == GL_ALPHA && type == GL_UNSIGNED_BYTE;
case MESA_FORMAT_A16:
- return format == GL_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian;
+ return format == GL_ALPHA && type == GL_UNSIGNED_SHORT &&
+ littleEndian && !swapBytes;
case MESA_FORMAT_L8:
return format == GL_LUMINANCE && type == GL_UNSIGNED_BYTE;
case MESA_FORMAT_L16:
- return format == GL_LUMINANCE && type == GL_UNSIGNED_SHORT && littleEndian;
+ return format == GL_LUMINANCE && type == GL_UNSIGNED_SHORT &&
+ littleEndian && !swapBytes;
case MESA_FORMAT_I8:
return format == GL_INTENSITY && type == GL_UNSIGNED_BYTE;
case MESA_FORMAT_I16:
- return format == GL_INTENSITY && type == GL_UNSIGNED_SHORT && littleEndian;
+ return format == GL_INTENSITY && type == GL_UNSIGNED_SHORT &&
+ littleEndian && !swapBytes;
case MESA_FORMAT_YCBCR:
case MESA_FORMAT_YCBCR_REV:
@@ -2635,32 +2702,38 @@ _mesa_format_matches_format_and_type(gl_format gl_format,
return GL_FALSE;
case MESA_FORMAT_R16:
- return format == GL_RED && type == GL_UNSIGNED_SHORT && littleEndian;
+ return format == GL_RED && type == GL_UNSIGNED_SHORT && littleEndian &&
+ !swapBytes;
case MESA_FORMAT_RG1616:
- return format == GL_RG && type == GL_UNSIGNED_SHORT && littleEndian;
+ return format == GL_RG && type == GL_UNSIGNED_SHORT && littleEndian &&
+ !swapBytes;
case MESA_FORMAT_RG1616_REV:
return GL_FALSE;
case MESA_FORMAT_ARGB2101010:
- return format == GL_BGRA && type == GL_UNSIGNED_INT_2_10_10_10_REV;
+ return format == GL_BGRA && type == GL_UNSIGNED_INT_2_10_10_10_REV &&
+ !swapBytes;
case MESA_FORMAT_Z24_S8:
- return format == GL_DEPTH_STENCIL && type == GL_UNSIGNED_INT_24_8;
+ return format == GL_DEPTH_STENCIL && type == GL_UNSIGNED_INT_24_8 &&
+ !swapBytes;
case MESA_FORMAT_Z24_X8:
case MESA_FORMAT_S8_Z24:
return GL_FALSE;
case MESA_FORMAT_Z16:
- return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_SHORT;
+ return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_SHORT &&
+ !swapBytes;
case MESA_FORMAT_X8_Z24:
return GL_FALSE;
case MESA_FORMAT_Z32:
- return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_INT;
+ return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_INT &&
+ !swapBytes;
case MESA_FORMAT_S8:
- return GL_FALSE;
+ return format == GL_STENCIL_INDEX && type == GL_UNSIGNED_BYTE;
case MESA_FORMAT_SRGB8:
case MESA_FORMAT_SRGBA8:
@@ -2682,44 +2755,44 @@ _mesa_format_matches_format_and_type(gl_format gl_format,
return GL_FALSE;
case MESA_FORMAT_RGBA_FLOAT32:
- return format == GL_RGBA && type == GL_FLOAT;
+ return format == GL_RGBA && type == GL_FLOAT && !swapBytes;
case MESA_FORMAT_RGBA_FLOAT16:
- return format == GL_RGBA && type == GL_HALF_FLOAT;
+ return format == GL_RGBA && type == GL_HALF_FLOAT && !swapBytes;
case MESA_FORMAT_RGB_FLOAT32:
- return format == GL_RGB && type == GL_FLOAT;
+ return format == GL_RGB && type == GL_FLOAT && !swapBytes;
case MESA_FORMAT_RGB_FLOAT16:
- return format == GL_RGB && type == GL_HALF_FLOAT;
+ return format == GL_RGB && type == GL_HALF_FLOAT && !swapBytes;
case MESA_FORMAT_ALPHA_FLOAT32:
- return format == GL_ALPHA && type == GL_FLOAT;
+ return format == GL_ALPHA && type == GL_FLOAT && !swapBytes;
case MESA_FORMAT_ALPHA_FLOAT16:
- return format == GL_ALPHA && type == GL_HALF_FLOAT;
+ return format == GL_ALPHA && type == GL_HALF_FLOAT && !swapBytes;
case MESA_FORMAT_LUMINANCE_FLOAT32:
- return format == GL_LUMINANCE && type == GL_FLOAT;
+ return format == GL_LUMINANCE && type == GL_FLOAT && !swapBytes;
case MESA_FORMAT_LUMINANCE_FLOAT16:
- return format == GL_LUMINANCE && type == GL_HALF_FLOAT;
+ return format == GL_LUMINANCE && type == GL_HALF_FLOAT && !swapBytes;
case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
- return format == GL_LUMINANCE_ALPHA && type == GL_FLOAT;
+ return format == GL_LUMINANCE_ALPHA && type == GL_FLOAT && !swapBytes;
case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
- return format == GL_LUMINANCE_ALPHA && type == GL_HALF_FLOAT;
+ return format == GL_LUMINANCE_ALPHA && type == GL_HALF_FLOAT && !swapBytes;
case MESA_FORMAT_INTENSITY_FLOAT32:
- return format == GL_INTENSITY && type == GL_FLOAT;
+ return format == GL_INTENSITY && type == GL_FLOAT && !swapBytes;
case MESA_FORMAT_INTENSITY_FLOAT16:
- return format == GL_INTENSITY && type == GL_HALF_FLOAT;
+ return format == GL_INTENSITY && type == GL_HALF_FLOAT && !swapBytes;
case MESA_FORMAT_R_FLOAT32:
- return format == GL_RED && type == GL_FLOAT;
+ return format == GL_RED && type == GL_FLOAT && !swapBytes;
case MESA_FORMAT_R_FLOAT16:
- return format == GL_RED && type == GL_HALF_FLOAT;
+ return format == GL_RED && type == GL_HALF_FLOAT && !swapBytes;
case MESA_FORMAT_RG_FLOAT32:
- return format == GL_RG && type == GL_FLOAT;
+ return format == GL_RG && type == GL_FLOAT && !swapBytes;
case MESA_FORMAT_RG_FLOAT16:
- return format == GL_RG && type == GL_HALF_FLOAT;
+ return format == GL_RG && type == GL_HALF_FLOAT && !swapBytes;
/* FINISHME: What do we want to do for GL_EXT_texture_integer? */
case MESA_FORMAT_ALPHA_UINT8:
@@ -2786,8 +2859,26 @@ _mesa_format_matches_format_and_type(gl_format gl_format,
case MESA_FORMAT_SIGNED_R8:
case MESA_FORMAT_SIGNED_RG88_REV:
case MESA_FORMAT_SIGNED_RGBX8888:
+ return GL_FALSE;
+
case MESA_FORMAT_SIGNED_RGBA8888:
+ if (format == GL_RGBA && type == GL_BYTE && !littleEndian)
+ return GL_TRUE;
+
+ if (format == GL_ABGR_EXT && type == GL_BYTE && littleEndian)
+ return GL_TRUE;
+
+ return GL_FALSE;
+
case MESA_FORMAT_SIGNED_RGBA8888_REV:
+ if (format == GL_RGBA && type == GL_BYTE && littleEndian)
+ return GL_TRUE;
+
+ if (format == GL_ABGR_EXT && type == GL_BYTE && !littleEndian)
+ return GL_TRUE;
+
+ return GL_FALSE;
+
case MESA_FORMAT_SIGNED_R16:
case MESA_FORMAT_SIGNED_GR1616:
case MESA_FORMAT_SIGNED_RGB_16:
@@ -2823,15 +2914,20 @@ _mesa_format_matches_format_and_type(gl_format gl_format,
return GL_FALSE;
case MESA_FORMAT_ARGB2101010_UINT:
- return GL_FALSE;
+ return (format == GL_BGRA_INTEGER_EXT &&
+ type == GL_UNSIGNED_INT_2_10_10_10_REV &&
+ !swapBytes);
case MESA_FORMAT_RGB9_E5_FLOAT:
- return format == GL_RGB && type == GL_UNSIGNED_INT_5_9_9_9_REV;
+ return format == GL_RGB && type == GL_UNSIGNED_INT_5_9_9_9_REV &&
+ !swapBytes;
+
case MESA_FORMAT_R11_G11_B10_FLOAT:
- return format == GL_RGB && type == GL_UNSIGNED_INT_10F_11F_11F_REV;
+ return format == GL_RGB && type == GL_UNSIGNED_INT_10F_11F_11F_REV &&
+ !swapBytes;
case MESA_FORMAT_Z32_FLOAT:
- return format == GL_DEPTH_COMPONENT && type == GL_FLOAT;
+ return format == GL_DEPTH_COMPONENT && type == GL_FLOAT && !swapBytes;
case MESA_FORMAT_Z32_FLOAT_X24S8:
return GL_FALSE;