/*
* Mesa 3-D graphics library
- * Version: 6.5.2
+ * Version: 6.5.3
*
- * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2007 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"),
#define CEILING( A, B ) ( (A) % (B) == 0 ? (A)/(B) : (A)/(B)+1 )
+/**
+ * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise.
+ */
+static GLboolean
+_mesa_type_is_packed(GLenum type)
+ {
+ switch (type) {
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ case GL_UNSIGNED_SHORT_8_8_MESA:
+ case GL_UNSIGNED_SHORT_8_8_REV_MESA:
+ case GL_UNSIGNED_INT_24_8_EXT:
+ return GL_TRUE;
+ }
+
+ return GL_FALSE;
+}
+
/**
* Flip the 8 bits in each byte of the given array.
*
/**
- * Compute the stride between image rows.
+ * Compute the stride (in bytes) between image rows.
*
* \param packing the pixelstore attributes
* \param width image width.
* \param format pixel format.
* \param type pixel data type.
*
- * \return the stride in bytes for the given parameters.
+ * \return the stride in bytes for the given parameters, or -1 if error
*/
GLint
_mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
GLint width, GLenum format, GLenum type )
{
+ GLint bytesPerRow, remainder;
+
ASSERT(packing);
+
if (type == GL_BITMAP) {
- /* BITMAP data */
- GLint bytes;
if (packing->RowLength == 0) {
- bytes = (width + 7) / 8;
+ bytesPerRow = (width + 7) / 8;
}
else {
- bytes = (packing->RowLength + 7) / 8;
+ bytesPerRow = (packing->RowLength + 7) / 8;
}
- if (packing->Invert) {
- /* negate the bytes per row (negative row stride) */
- bytes = -bytes;
- }
- return bytes;
}
else {
/* Non-BITMAP data */
const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type);
- GLint bytesPerRow, remainder;
if (bytesPerPixel <= 0)
return -1; /* error */
if (packing->RowLength == 0) {
else {
bytesPerRow = bytesPerPixel * packing->RowLength;
}
- remainder = bytesPerRow % packing->Alignment;
- if (remainder > 0)
- bytesPerRow += (packing->Alignment - remainder);
- if (packing->Invert)
- bytesPerRow = -bytesPerRow;
- return bytesPerRow;
}
+
+ remainder = bytesPerRow % packing->Alignment;
+ if (remainder > 0) {
+ bytesPerRow += (packing->Alignment - remainder);
+ }
+
+ if (packing->Invert) {
+ /* negate the bytes per row (negative row stride) */
+ bytesPerRow = -bytesPerRow;
+ }
+
+ return bytesPerRow;
}
* as indicated by the transferOps bitmask
*/
void
-_mesa_apply_rgba_transfer_ops(GLcontext *ctx, GLuint transferOps,
+_mesa_apply_rgba_transfer_ops(GLcontext *ctx, GLbitfield transferOps,
GLuint n, GLfloat rgba[][4])
{
/* scale & bias */
}
/* GL_COLOR_TABLE lookup */
if (transferOps & IMAGE_COLOR_TABLE_BIT) {
- _mesa_lookup_rgba_float(&ctx->ColorTable, n, rgba);
+ _mesa_lookup_rgba_float(&ctx->ColorTable[COLORTABLE_PRECONVOLUTION], n, rgba);
}
/* convolution */
if (transferOps & IMAGE_CONVOLUTION_BIT) {
}
/* GL_POST_CONVOLUTION_COLOR_TABLE lookup */
if (transferOps & IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT) {
- _mesa_lookup_rgba_float(&ctx->PostConvolutionColorTable, n, rgba);
+ _mesa_lookup_rgba_float(&ctx->ColorTable[COLORTABLE_POSTCONVOLUTION], n, rgba);
}
/* color matrix transform */
if (transferOps & IMAGE_COLOR_MATRIX_BIT) {
}
/* GL_POST_COLOR_MATRIX_COLOR_TABLE lookup */
if (transferOps & IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT) {
- _mesa_lookup_rgba_float(&ctx->PostColorMatrixColorTable, n, rgba);
+ _mesa_lookup_rgba_float(&ctx->ColorTable[COLORTABLE_POSTCOLORMATRIX], n, rgba);
}
/* update histogram count */
if (transferOps & IMAGE_HISTOGRAM_BIT) {
}
+/*
+ * Apply color index shift and offset to an array of pixels.
+ */
+static void
+shift_and_offset_ci( const GLcontext *ctx, GLuint n, GLuint indexes[] )
+{
+ GLint shift = ctx->Pixel.IndexShift;
+ GLint offset = ctx->Pixel.IndexOffset;
+ GLuint i;
+ if (shift > 0) {
+ for (i=0;i<n;i++) {
+ indexes[i] = (indexes[i] << shift) + offset;
+ }
+ }
+ else if (shift < 0) {
+ shift = -shift;
+ for (i=0;i<n;i++) {
+ indexes[i] = (indexes[i] >> shift) + offset;
+ }
+ }
+ else {
+ for (i=0;i<n;i++) {
+ indexes[i] = indexes[i] + offset;
+ }
+ }
+}
+
+
+
+/**
+ * Apply color index shift, offset and table lookup to an array
+ * of color indexes;
+ */
+void
+_mesa_apply_ci_transfer_ops(const GLcontext *ctx, GLbitfield transferOps,
+ GLuint n, GLuint indexes[])
+{
+ if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
+ shift_and_offset_ci(ctx, n, indexes);
+ }
+ if (transferOps & IMAGE_MAP_COLOR_BIT) {
+ const GLuint mask = ctx->PixelMaps.ItoI.Size - 1;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ const GLuint j = indexes[i] & mask;
+ indexes[i] = IROUND(ctx->PixelMaps.ItoI.Map[j]);
+ }
+ }
+}
+
+
+/**
+ * Apply stencil index shift, offset and table lookup to an array
+ * of stencil values.
+ */
+void
+_mesa_apply_stencil_transfer_ops(const GLcontext *ctx, GLuint n,
+ GLstencil stencil[])
+{
+ if (ctx->Pixel.IndexShift != 0 || ctx->Pixel.IndexOffset != 0) {
+ const GLint offset = ctx->Pixel.IndexOffset;
+ GLint shift = ctx->Pixel.IndexShift;
+ GLuint i;
+ if (shift > 0) {
+ for (i = 0; i < n; i++) {
+ stencil[i] = (stencil[i] << shift) + offset;
+ }
+ }
+ else if (shift < 0) {
+ shift = -shift;
+ for (i = 0; i < n; i++) {
+ stencil[i] = (stencil[i] >> shift) + offset;
+ }
+ }
+ else {
+ for (i = 0; i < n; i++) {
+ stencil[i] = stencil[i] + offset;
+ }
+ }
+ }
+ if (ctx->Pixel.MapStencilFlag) {
+ GLuint mask = ctx->PixelMaps.StoS.Size - 1;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ stencil[i] = ctx->PixelMaps.StoS.Map[ stencil[i] & mask ];
+ }
+ }
+}
+
/**
* Used to pack an array [][4] of RGBA float colors as specified
* by the dstFormat, dstType and dstPacking. Used by glReadPixels,
* glGetConvolutionFilter(), etc.
- * NOTE: it's assumed the incoming float colors are all in [0,1].
+ * Incoming colors will be clamped to [0,1] if needed.
+ * Note: the rgba values will be modified by this function when any pixel
+ * transfer ops are enabled.
*/
void
-_mesa_pack_rgba_span_float( GLcontext *ctx,
- GLuint n, CONST GLfloat rgbaIn[][4],
- GLenum dstFormat, GLenum dstType,
- GLvoid *dstAddr,
- const struct gl_pixelstore_attrib *dstPacking,
- GLuint transferOps )
+_mesa_pack_rgba_span_float(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
+ GLenum dstFormat, GLenum dstType,
+ GLvoid *dstAddr,
+ const struct gl_pixelstore_attrib *dstPacking,
+ GLbitfield transferOps)
{
- const GLint comps = _mesa_components_in_format(dstFormat);
GLfloat luminance[MAX_WIDTH];
- const GLfloat (*rgba)[4];
+ const GLint comps = _mesa_components_in_format(dstFormat);
GLuint i;
- if (transferOps) {
- /* make copy of incoming data */
- GLfloat rgbaCopy[MAX_WIDTH][4];
- _mesa_memcpy(rgbaCopy, rgbaIn, n * 4 * sizeof(GLfloat));
- _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgbaCopy);
- rgba = (const GLfloat (*)[4]) rgbaCopy;
+ if (dstType != GL_FLOAT || ctx->Color.ClampReadColor == GL_TRUE) {
+ /* need to clamp to [0, 1] */
+ transferOps |= IMAGE_CLAMP_BIT;
+ }
+ if (transferOps) {
+ _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba);
if ((transferOps & IMAGE_MIN_MAX_BIT) && ctx->MinMax.Sink) {
return;
}
}
- else {
- /* use incoming data, not a copy */
- rgba = (const GLfloat (*)[4]) rgbaIn;
- }
if (dstFormat == GL_LUMINANCE || dstFormat == GL_LUMINANCE_ALPHA) {
/* compute luminance values */
- if (ctx->Color.ClampReadColor == GL_TRUE) {
+ if (transferOps & IMAGE_RED_TO_LUMINANCE) {
+ /* Luminance = Red (glGetTexImage) */
for (i = 0; i < n; i++) {
- GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
- luminance[i] = CLAMP(sum, 0.0F, 1.0F);
+ luminance[i] = rgba[i][RCOMP];
}
}
else {
- for (i = 0; i < n; i++) {
- luminance[i] = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+ /* Luminance = Red + Green + Blue (glReadPixels) */
+ if (dstType != GL_FLOAT || ctx->Color.ClampReadColor == GL_TRUE) {
+ for (i = 0; i < n; i++) {
+ GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+ luminance[i] = CLAMP(sum, 0.0F, 1.0F);
+ }
+ }
+ else {
+ for (i = 0; i < n; i++) {
+ luminance[i] = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP];
+ }
}
}
}
dst[i*4+2] = FLOAT_TO_BYTE(rgba[i][RCOMP]);
dst[i*4+3] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
}
+ break;
case GL_ABGR_EXT:
for (i=0;i<n;i++) {
dst[i*4+0] = FLOAT_TO_BYTE(rgba[i][ACOMP]);
default:
_mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
}
- if (dstPacking->SwapBytes) {
- _mesa_swap2( (GLushort *) dst, n * comps);
- }
}
break;
case GL_SHORT:
dst[i*4+2] = FLOAT_TO_SHORT(rgba[i][RCOMP]);
dst[i*4+3] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
}
+ break;
case GL_ABGR_EXT:
for (i=0;i<n;i++) {
dst[i*4+0] = FLOAT_TO_SHORT(rgba[i][ACOMP]);
default:
_mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
}
- if (dstPacking->SwapBytes) {
- _mesa_swap2( (GLushort *) dst, n * comps );
- }
}
break;
case GL_UNSIGNED_INT:
default:
_mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
}
- if (dstPacking->SwapBytes) {
- _mesa_swap4( (GLuint *) dst, n * comps );
- }
}
break;
case GL_INT:
default:
_mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
}
- if (dstPacking->SwapBytes) {
- _mesa_swap4( (GLuint *) dst, n * comps );
- }
}
break;
case GL_FLOAT:
default:
_mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
}
- if (dstPacking->SwapBytes) {
- _mesa_swap4( (GLuint *) dst, n * comps );
- }
}
break;
case GL_HALF_FLOAT_ARB:
default:
_mesa_problem(ctx, "bad format in _mesa_pack_rgba_span\n");
}
- if (dstPacking->SwapBytes) {
- _mesa_swap2( (GLushort *) dst, n * comps );
- }
}
break;
case GL_UNSIGNED_BYTE_3_3_2:
for (i=0;i<n;i++) {
dst[i] = (((GLint) (rgba[i][RCOMP] * 7.0F)) )
| (((GLint) (rgba[i][GCOMP] * 7.0F)) << 3)
- | (((GLint) (rgba[i][BCOMP] * 3.0F)) << 5);
+ | (((GLint) (rgba[i][BCOMP] * 3.0F)) << 6);
}
}
break;
else if (dstFormat == GL_ABGR_EXT) {
GLushort *dst = (GLushort *) dstAddr;
for (i=0;i<n;i++) {
- dst[i] = (((GLint) (rgba[i][ACOMP] * 15.0F)) << 4)
+ dst[i] = (((GLint) (rgba[i][ACOMP] * 15.0F)) << 12)
| (((GLint) (rgba[i][BCOMP] * 15.0F)) << 8)
- | (((GLint) (rgba[i][GCOMP] * 15.0F)) << 12)
+ | (((GLint) (rgba[i][GCOMP] * 15.0F)) << 4)
| (((GLint) (rgba[i][RCOMP] * 15.0F)) );
}
}
break;
default:
_mesa_problem(ctx, "bad type in _mesa_pack_rgba_span_float");
+ return;
}
-}
-
-/*
- * Pack the given RGBA span into client memory at 'dest' address
- * in the given pixel format and type.
- * Optionally apply the enabled pixel transfer ops.
- * Pack into memory using the given packing params struct.
- * This is used by glReadPixels and glGetTexImage?D()
- * \param ctx - the context
- * n - number of pixels in the span
- * rgba - the pixels
- * format - dest packing format
- * type - dest packing data type
- * destination - destination packing address
- * packing - pixel packing parameters
- * transferOps - bitmask of IMAGE_*_BIT operations to apply
- */
-void
-_mesa_pack_rgba_span_chan( GLcontext *ctx,
- GLuint n, CONST GLchan srcRgba[][4],
- GLenum dstFormat, GLenum dstType,
- GLvoid *dstAddr,
- const struct gl_pixelstore_attrib *dstPacking,
- GLuint transferOps)
-{
- ASSERT((ctx->NewState & _NEW_PIXEL) == 0 || transferOps == 0);
-
- /* Test for optimized case first */
- if (transferOps == 0 && dstFormat == GL_RGBA && dstType == CHAN_TYPE) {
- /* common simple case */
- _mesa_memcpy(dstAddr, srcRgba, n * 4 * sizeof(GLchan));
- }
- else if (transferOps == 0 && dstFormat == GL_RGB && dstType == CHAN_TYPE) {
- /* common simple case */
- GLuint i;
- GLchan *dest = (GLchan *) dstAddr;
- for (i = 0; i < n; i++) {
- dest[0] = srcRgba[i][RCOMP];
- dest[1] = srcRgba[i][GCOMP];
- dest[2] = srcRgba[i][BCOMP];
- dest += 3;
- }
- }
- else if (transferOps == 0 && dstFormat == GL_RGBA && dstType == GL_UNSIGNED_BYTE) {
- /* common simple case */
- GLuint i;
- GLubyte *dest = (GLubyte *) dstAddr;
- for (i = 0; i < n; i++) {
- dest[0] = CHAN_TO_UBYTE(srcRgba[i][RCOMP]);
- dest[1] = CHAN_TO_UBYTE(srcRgba[i][GCOMP]);
- dest[2] = CHAN_TO_UBYTE(srcRgba[i][BCOMP]);
- dest[3] = CHAN_TO_UBYTE(srcRgba[i][ACOMP]);
- dest += 4;
+ if (dstPacking->SwapBytes) {
+ GLint swapSize = _mesa_sizeof_packed_type(dstType);
+ if (swapSize == 2) {
+ if (dstPacking->SwapBytes) {
+ _mesa_swap2((GLushort *) dstAddr, n * comps);
+ }
}
- }
- else {
- /* general solution */
- GLuint i;
- GLfloat rgba[MAX_WIDTH][4];
- assert(n <= MAX_WIDTH);
- /* convert color components to floating point */
- for (i = 0; i < n; i++) {
- rgba[i][RCOMP] = CHAN_TO_FLOAT(srcRgba[i][RCOMP]);
- rgba[i][GCOMP] = CHAN_TO_FLOAT(srcRgba[i][GCOMP]);
- rgba[i][BCOMP] = CHAN_TO_FLOAT(srcRgba[i][BCOMP]);
- rgba[i][ACOMP] = CHAN_TO_FLOAT(srcRgba[i][ACOMP]);
+ else if (swapSize == 4) {
+ if (dstPacking->SwapBytes) {
+ _mesa_swap4((GLuint *) dstAddr, n * comps);
+ }
}
- _mesa_pack_rgba_span_float(ctx, n, (const GLfloat (*)[4]) rgba,
- dstFormat, dstType, dstAddr,
- dstPacking, transferOps);
}
}
GLenum srcFormat, GLenum srcType, const GLvoid *src,
const struct gl_pixelstore_attrib *unpack )
{
- assert(srcFormat == GL_COLOR_INDEX);
+ ASSERT(srcFormat == GL_COLOR_INDEX || srcFormat == GL_STENCIL_INDEX);
ASSERT(srcType == GL_BITMAP ||
srcType == GL_UNSIGNED_BYTE ||
GLenum srcFormat, GLenum srcType,
const GLvoid *source,
const struct gl_pixelstore_attrib *srcPacking,
- GLuint transferOps )
+ GLbitfield transferOps )
{
ASSERT(dstFormat == GL_ALPHA ||
dstFormat == GL_LUMINANCE ||
extract_uint_indexes(n, indexes, srcFormat, srcType, source,
srcPacking);
- if (dstFormat == GL_COLOR_INDEX
- && (transferOps & IMAGE_MAP_COLOR_BIT)) {
- _mesa_map_ci(ctx, n, indexes);
- }
- if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
- _mesa_shift_and_offset_ci(ctx, n, indexes);
- }
-
if (dstFormat == GL_COLOR_INDEX) {
- /* convert to GLchan and return */
GLuint i;
+ _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes);
+ /* convert to GLchan and return */
for (i = 0; i < n; i++) {
dest[i] = (GLchan) (indexes[i] & 0xff);
}
}
else {
/* Convert indexes to RGBA */
+ if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
+ shift_and_offset_ci(ctx, n, indexes);
+ }
_mesa_map_ci_to_rgba(ctx, n, indexes, rgba);
}
GLenum srcFormat, GLenum srcType,
const GLvoid *source,
const struct gl_pixelstore_attrib *srcPacking,
- GLuint transferOps )
+ GLbitfield transferOps )
{
ASSERT(dstFormat == GL_ALPHA ||
dstFormat == GL_LUMINANCE ||
extract_uint_indexes(n, indexes, srcFormat, srcType, source,
srcPacking);
- if (dstFormat == GL_COLOR_INDEX
- && (transferOps & IMAGE_MAP_COLOR_BIT)) {
- _mesa_map_ci(ctx, n, indexes);
- }
- if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
- _mesa_shift_and_offset_ci(ctx, n, indexes);
- }
-
if (dstFormat == GL_COLOR_INDEX) {
- /* convert to GLchan and return */
GLuint i;
+ _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes);
+ /* convert to GLchan and return */
for (i = 0; i < n; i++) {
dest[i] = (GLchan) (indexes[i] & 0xff);
}
}
else {
/* Convert indexes to RGBA */
+ if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
+ shift_and_offset_ci(ctx, n, indexes);
+ }
_mesa_map_ci_to_rgba(ctx, n, indexes, rgba);
}
GLenum dstType, GLvoid *dest,
GLenum srcType, const GLvoid *source,
const struct gl_pixelstore_attrib *srcPacking,
- GLuint transferOps )
+ GLbitfield transferOps )
{
ASSERT(srcType == GL_BITMAP ||
srcType == GL_UNSIGNED_BYTE ||
extract_uint_indexes(n, indexes, GL_COLOR_INDEX, srcType, source,
srcPacking);
- if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
- /* shift and offset indexes */
- _mesa_shift_and_offset_ci(ctx, n, indexes);
- }
- if (transferOps & IMAGE_MAP_COLOR_BIT) {
- /* Apply lookup table */
- _mesa_map_ci(ctx, n, indexes);
- }
+ if (transferOps)
+ _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes);
/* convert to dest type */
switch (dstType) {
_mesa_pack_index_span( const GLcontext *ctx, GLuint n,
GLenum dstType, GLvoid *dest, const GLuint *source,
const struct gl_pixelstore_attrib *dstPacking,
- GLuint transferOps )
+ GLbitfield transferOps )
{
GLuint indexes[MAX_WIDTH];
if (transferOps & (IMAGE_MAP_COLOR_BIT | IMAGE_SHIFT_OFFSET_BIT)) {
/* make a copy of input */
_mesa_memcpy(indexes, source, n * sizeof(GLuint));
- if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
- _mesa_shift_and_offset_ci( ctx, n, indexes);
- }
- if (transferOps & IMAGE_MAP_COLOR_BIT) {
- _mesa_map_ci(ctx, n, indexes);
- }
+ _mesa_apply_ci_transfer_ops(ctx, transferOps, n, indexes);
source = indexes;
}
GLenum dstType, GLvoid *dest,
GLenum srcType, const GLvoid *source,
const struct gl_pixelstore_attrib *srcPacking,
- GLuint transferOps )
+ GLbitfield transferOps )
{
ASSERT(srcType == GL_BITMAP ||
srcType == GL_UNSIGNED_BYTE ||
GLuint indexes[MAX_WIDTH];
assert(n <= MAX_WIDTH);
- extract_uint_indexes(n, indexes, GL_COLOR_INDEX, srcType, source,
+ extract_uint_indexes(n, indexes, GL_STENCIL_INDEX, srcType, source,
srcPacking);
if (transferOps) {
if (transferOps & IMAGE_SHIFT_OFFSET_BIT) {
/* shift and offset indexes */
- _mesa_shift_and_offset_ci(ctx, n, indexes);
+ shift_and_offset_ci(ctx, n, indexes);
}
if (ctx->Pixel.MapStencilFlag) {
/* Apply stencil lookup table */
- GLuint mask = ctx->Pixel.MapStoSsize - 1;
+ GLuint mask = ctx->PixelMaps.StoS.Size - 1;
GLuint i;
for (i=0;i<n;i++) {
- indexes[i] = ctx->Pixel.MapStoS[ indexes[i] & mask ];
+ indexes[i] = ctx->PixelMaps.StoS.Map[ indexes[i] & mask ];
}
}
}
ctx->Pixel.MapStencilFlag) {
/* make a copy of input */
_mesa_memcpy(stencil, source, n * sizeof(GLstencil));
- if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset) {
- _mesa_shift_and_offset_stencil( ctx, n, stencil );
- }
- if (ctx->Pixel.MapStencilFlag) {
- _mesa_map_stencil( ctx, n, stencil );
- }
+ _mesa_apply_stencil_transfer_ops(ctx, n, stencil);
source = stencil;
}
depthVals = depthCopy;
}
- if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset) {
+ if (ctx->Pixel.IndexShift ||
+ ctx->Pixel.IndexOffset ||
+ ctx->Pixel.MapStencilFlag) {
_mesa_memcpy(stencilCopy, stencilVals, n * sizeof(GLstencil));
- _mesa_shift_and_offset_stencil(ctx, n, stencilCopy);
- stencilVals = stencilCopy;
- }
- if (ctx->Pixel.MapStencilFlag) {
- if (stencilVals != stencilCopy)
- _mesa_memcpy(stencilCopy, stencilVals, n * sizeof(GLstencil));
- _mesa_map_stencil(ctx, n, stencilCopy);
+ _mesa_apply_stencil_transfer_ops(ctx, n, stencilCopy);
stencilVals = stencilCopy;
}
if (width <= 0 || height <= 0 || depth <= 0)
return NULL; /* generate error later */
- if (format == GL_BITMAP) {
+ if (type == GL_BITMAP) {
bytesPerRow = (width + 7) >> 3;
- flipBytes = !unpack->LsbFirst;
+ flipBytes = unpack->LsbFirst;
swap2 = swap4 = GL_FALSE;
compsPerRow = 0;
}
else {
const GLint bytesPerPixel = _mesa_bytes_per_pixel(format, type);
- const GLint components = _mesa_components_in_format(format);
+ GLint components = _mesa_components_in_format(format);
GLint bytesPerComp;
+
+ if (_mesa_type_is_packed(type))
+ components = 1;
+
if (bytesPerPixel <= 0 || components <= 0)
return NULL; /* bad format or type. generate error later */
bytesPerRow = bytesPerPixel * width;
for (row = 0; row < height; row++) {
const GLvoid *src = _mesa_image_address(dimensions, unpack, pixels,
width, height, format, type, img, row, 0);
- _mesa_memcpy(dst, src, bytesPerRow);
+
+ if ((type == GL_BITMAP) && (unpack->SkipPixels & 0x7)) {
+ GLint i;
+ flipBytes = GL_FALSE;
+ if (unpack->LsbFirst) {
+ GLubyte srcMask = 1 << (unpack->SkipPixels & 0x7);
+ GLubyte dstMask = 128;
+ const GLubyte *s = src;
+ GLubyte *d = dst;
+ *d = 0;
+ for (i = 0; i < width; i++) {
+ if (*s & srcMask) {
+ *d |= dstMask;
+ }
+ if (srcMask == 128) {
+ srcMask = 1;
+ s++;
+ } else {
+ srcMask = srcMask << 1;
+ }
+ if (dstMask == 1) {
+ dstMask = 128;
+ d++;
+ *d = 0;
+ } else {
+ dstMask = dstMask >> 1;
+ }
+ }
+ } else {
+ GLubyte srcMask = 128 >> (unpack->SkipPixels & 0x7);
+ GLubyte dstMask = 128;
+ const GLubyte *s = src;
+ GLubyte *d = dst;
+ *d = 0;
+ for (i = 0; i < width; i++) {
+ if (*s & srcMask) {
+ *d |= dstMask;
+ }
+ if (srcMask == 1) {
+ srcMask = 128;
+ s++;
+ } else {
+ srcMask = srcMask >> 1;
+ }
+ if (dstMask == 1) {
+ dstMask = 128;
+ d++;
+ *d = 0;
+ } else {
+ dstMask = dstMask >> 1;
+ }
+ }
+ }
+ } else
+ _mesa_memcpy(dst, src, bytesPerRow);
/* byte flipping/swapping */
if (flipBytes) {
flip_bytes((GLubyte *) dst, bytesPerRow);
/**
* Convert an array of RGBA colors from one datatype to another.
- * NOTE: we assume that src may equal dst.
+ * NOTE: src may equal dst. In that case, we use a temporary buffer.
*/
void
_mesa_convert_colors(GLenum srcType, const GLvoid *src,
GLenum dstType, GLvoid *dst,
GLuint count, const GLubyte mask[])
{
+ GLuint tempBuffer[MAX_WIDTH][4];
+ const GLboolean useTemp = (src == dst);
+
ASSERT(srcType != dstType);
switch (srcType) {
case GL_UNSIGNED_BYTE:
if (dstType == GL_UNSIGNED_SHORT) {
- const GLubyte (*rgba1)[4] = (const GLubyte (*)[4]) src;
- GLushort newVals[MAX_WIDTH][4];
+ const GLubyte (*src1)[4] = (const GLubyte (*)[4]) src;
+ GLushort (*dst2)[4] = (GLushort (*)[4]) (useTemp ? tempBuffer : dst);
GLuint i;
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
- newVals[i][RCOMP] = UBYTE_TO_USHORT(rgba1[i][RCOMP]);
- newVals[i][GCOMP] = UBYTE_TO_USHORT(rgba1[i][GCOMP]);
- newVals[i][BCOMP] = UBYTE_TO_USHORT(rgba1[i][BCOMP]);
- newVals[i][ACOMP] = UBYTE_TO_USHORT(rgba1[i][ACOMP]);
+ dst2[i][RCOMP] = UBYTE_TO_USHORT(src1[i][RCOMP]);
+ dst2[i][GCOMP] = UBYTE_TO_USHORT(src1[i][GCOMP]);
+ dst2[i][BCOMP] = UBYTE_TO_USHORT(src1[i][BCOMP]);
+ dst2[i][ACOMP] = UBYTE_TO_USHORT(src1[i][ACOMP]);
}
}
- _mesa_memcpy(dst, newVals, count * 4 * sizeof(GLushort));
+ if (useTemp)
+ _mesa_memcpy(dst, tempBuffer, count * 4 * sizeof(GLushort));
}
else {
- const GLubyte (*rgba1)[4] = (const GLubyte (*)[4]) src;
- GLfloat newVals[MAX_WIDTH][4];
+ const GLubyte (*src1)[4] = (const GLubyte (*)[4]) src;
+ GLfloat (*dst4)[4] = (GLfloat (*)[4]) (useTemp ? tempBuffer : dst);
GLuint i;
ASSERT(dstType == GL_FLOAT);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
- newVals[i][RCOMP] = UBYTE_TO_FLOAT(rgba1[i][RCOMP]);
- newVals[i][GCOMP] = UBYTE_TO_FLOAT(rgba1[i][GCOMP]);
- newVals[i][BCOMP] = UBYTE_TO_FLOAT(rgba1[i][BCOMP]);
- newVals[i][ACOMP] = UBYTE_TO_FLOAT(rgba1[i][ACOMP]);
+ dst4[i][RCOMP] = UBYTE_TO_FLOAT(src1[i][RCOMP]);
+ dst4[i][GCOMP] = UBYTE_TO_FLOAT(src1[i][GCOMP]);
+ dst4[i][BCOMP] = UBYTE_TO_FLOAT(src1[i][BCOMP]);
+ dst4[i][ACOMP] = UBYTE_TO_FLOAT(src1[i][ACOMP]);
}
}
- _mesa_memcpy(dst, newVals, count * 4 * sizeof(GLfloat));
+ if (useTemp)
+ _mesa_memcpy(dst, tempBuffer, count * 4 * sizeof(GLfloat));
}
break;
case GL_UNSIGNED_SHORT:
if (dstType == GL_UNSIGNED_BYTE) {
- const GLushort (*rgba2)[4] = (const GLushort (*)[4]) src;
- GLubyte newVals[MAX_WIDTH][4];
+ const GLushort (*src2)[4] = (const GLushort (*)[4]) src;
+ GLubyte (*dst1)[4] = (GLubyte (*)[4]) (useTemp ? tempBuffer : dst);
GLuint i;
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
- newVals[i][RCOMP] = USHORT_TO_UBYTE(rgba2[i][RCOMP]);
- newVals[i][GCOMP] = USHORT_TO_UBYTE(rgba2[i][GCOMP]);
- newVals[i][BCOMP] = USHORT_TO_UBYTE(rgba2[i][BCOMP]);
- newVals[i][ACOMP] = USHORT_TO_UBYTE(rgba2[i][ACOMP]);
+ dst1[i][RCOMP] = USHORT_TO_UBYTE(src2[i][RCOMP]);
+ dst1[i][GCOMP] = USHORT_TO_UBYTE(src2[i][GCOMP]);
+ dst1[i][BCOMP] = USHORT_TO_UBYTE(src2[i][BCOMP]);
+ dst1[i][ACOMP] = USHORT_TO_UBYTE(src2[i][ACOMP]);
}
}
- _mesa_memcpy(dst, newVals, count * 4 * sizeof(GLubyte));
+ if (useTemp)
+ _mesa_memcpy(dst, tempBuffer, count * 4 * sizeof(GLubyte));
}
else {
- const GLushort (*rgba2)[4] = (const GLushort (*)[4]) src;
- GLfloat newVals[MAX_WIDTH][4];
+ const GLushort (*src2)[4] = (const GLushort (*)[4]) src;
+ GLfloat (*dst4)[4] = (GLfloat (*)[4]) (useTemp ? tempBuffer : dst);
GLuint i;
ASSERT(dstType == GL_FLOAT);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
- newVals[i][RCOMP] = USHORT_TO_FLOAT(rgba2[i][RCOMP]);
- newVals[i][GCOMP] = USHORT_TO_FLOAT(rgba2[i][GCOMP]);
- newVals[i][BCOMP] = USHORT_TO_FLOAT(rgba2[i][BCOMP]);
- newVals[i][ACOMP] = USHORT_TO_FLOAT(rgba2[i][ACOMP]);
+ dst4[i][RCOMP] = USHORT_TO_FLOAT(src2[i][RCOMP]);
+ dst4[i][GCOMP] = USHORT_TO_FLOAT(src2[i][GCOMP]);
+ dst4[i][BCOMP] = USHORT_TO_FLOAT(src2[i][BCOMP]);
+ dst4[i][ACOMP] = USHORT_TO_FLOAT(src2[i][ACOMP]);
}
}
- _mesa_memcpy(dst, newVals, count * 4 * sizeof(GLfloat));
+ if (useTemp)
+ _mesa_memcpy(dst, tempBuffer, count * 4 * sizeof(GLfloat));
}
break;
case GL_FLOAT:
if (dstType == GL_UNSIGNED_BYTE) {
- const GLfloat (*rgba4)[4] = (const GLfloat (*)[4]) src;
- GLubyte newVals[MAX_WIDTH][4];
+ const GLfloat (*src4)[4] = (const GLfloat (*)[4]) src;
+ GLubyte (*dst1)[4] = (GLubyte (*)[4]) (useTemp ? tempBuffer : dst);
GLuint i;
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
- UNCLAMPED_FLOAT_TO_UBYTE(newVals[i][RCOMP], rgba4[i][RCOMP]);
- UNCLAMPED_FLOAT_TO_UBYTE(newVals[i][GCOMP], rgba4[i][GCOMP]);
- UNCLAMPED_FLOAT_TO_UBYTE(newVals[i][BCOMP], rgba4[i][BCOMP]);
- UNCLAMPED_FLOAT_TO_UBYTE(newVals[i][ACOMP], rgba4[i][ACOMP]);
+ UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][RCOMP], src4[i][RCOMP]);
+ UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][GCOMP], src4[i][GCOMP]);
+ UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][BCOMP], src4[i][BCOMP]);
+ UNCLAMPED_FLOAT_TO_UBYTE(dst1[i][ACOMP], src4[i][ACOMP]);
}
}
- _mesa_memcpy(dst, newVals, count * 4 * sizeof(GLubyte));
+ if (useTemp)
+ _mesa_memcpy(dst, tempBuffer, count * 4 * sizeof(GLubyte));
}
else {
- const GLfloat (*rgba4)[4] = (const GLfloat (*)[4]) src;
- GLushort newVals[MAX_WIDTH][4];
+ const GLfloat (*src4)[4] = (const GLfloat (*)[4]) src;
+ GLushort (*dst2)[4] = (GLushort (*)[4]) (useTemp ? tempBuffer : dst);
GLuint i;
ASSERT(dstType == GL_UNSIGNED_SHORT);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
- UNCLAMPED_FLOAT_TO_USHORT(newVals[i][RCOMP], rgba4[i][RCOMP]);
- UNCLAMPED_FLOAT_TO_USHORT(newVals[i][GCOMP], rgba4[i][GCOMP]);
- UNCLAMPED_FLOAT_TO_USHORT(newVals[i][BCOMP], rgba4[i][BCOMP]);
- UNCLAMPED_FLOAT_TO_USHORT(newVals[i][ACOMP], rgba4[i][ACOMP]);
+ UNCLAMPED_FLOAT_TO_USHORT(dst2[i][RCOMP], src4[i][RCOMP]);
+ UNCLAMPED_FLOAT_TO_USHORT(dst2[i][GCOMP], src4[i][GCOMP]);
+ UNCLAMPED_FLOAT_TO_USHORT(dst2[i][BCOMP], src4[i][BCOMP]);
+ UNCLAMPED_FLOAT_TO_USHORT(dst2[i][ACOMP], src4[i][ACOMP]);
}
}
- _mesa_memcpy(dst, newVals, count * 4 * sizeof(GLushort));
+ if (useTemp)
+ _mesa_memcpy(dst, tempBuffer, count * 4 * sizeof(GLushort));
}
break;
default:
projects / mesa.git / blobdiff