MAP4(0,1,2,3),
},
-
{
IDX_RED,
MAP4(0, ZERO, ZERO, ONE),
* Apply all needed pixel unpacking and pixel transfer operations.
* Note that there are both logicalBaseFormat and textureBaseFormat parameters.
* Suppose the user specifies GL_LUMINANCE as the internal texture format
- * but the graphics hardware doesn't support luminance textures. So, might
+ * but the graphics hardware doesn't support luminance textures. So, we might
* use an RGB hardware format instead.
* If logicalBaseFormat != textureBaseFormat we have some extra work to do.
*
* Apply all needed pixel unpacking and pixel transfer operations.
* Note that there are both logicalBaseFormat and textureBaseFormat parameters.
* Suppose the user specifies GL_LUMINANCE as the internal texture format
- * but the graphics hardware doesn't support luminance textures. So, might
+ * but the graphics hardware doesn't support luminance textures. So, we might
* use an RGB hardware format instead.
* If logicalBaseFormat != textureBaseFormat we have some extra work to do.
*
static const GLubyte map_identity[6] = { 0, 1, 2, 3, ZERO, ONE };
static const GLubyte map_3210[6] = { 3, 2, 1, 0, ZERO, ONE };
-/* Deal with the _REV input types:
+
+/**
+ * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a
+ * mapping array depending on endianness.
*/
static const GLubyte *
type_mapping( GLenum srcType )
}
}
-/* Mapping required if input type is
+
+/**
+ * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a
+ * mapping array depending on pixelstore byte swapping state.
*/
static const GLubyte *
byteswap_mapping( GLboolean swapBytes,
_mesa_swizzle_ubyte_image(ctx, dims,
srcFormat,
srcType,
-
baseInternalFormat,
dstmap, 4,
dstAddr, dstXoffset, dstYoffset, dstZoffset,
}
+/**
+ * Do texstore for 2-channel, 8-bit/channel, unsigned normalized formats.
+ */
static GLboolean
_mesa_texstore_unorm88(TEXSTORE_PARAMS)
{
srcType == GL_UNSIGNED_BYTE &&
can_swizzle(baseInternalFormat) &&
can_swizzle(srcFormat)) {
-
GLubyte dstmap[4];
/* dstmap - how to swizzle from RGBA to dst format:
}
+/**
+ * Do texstore for 2-channel, 16-bit/channel, unsigned normalized formats.
+ */
static GLboolean
_mesa_texstore_unorm1616(TEXSTORE_PARAMS)
{
srcType == GL_UNSIGNED_BYTE &&
can_swizzle(baseInternalFormat) &&
can_swizzle(srcFormat)) {
-
GLubyte dstmap[4];
/* dstmap - how to swizzle from RGBA to dst format:
srcAddr, srcPacking);
}
else if (srcType == GL_BYTE) {
-
GLubyte dstmap[4];
/* dstmap - how to swizzle from RGBA to dst format:
/**
- * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or MESA_FORMAT_SIGNED_RGBA8888_REV
+ * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or
+ * MESA_FORMAT_SIGNED_RGBA8888_REV
*/
static GLboolean
_mesa_texstore_signed_rgba8888(TEXSTORE_PARAMS)
ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT);
ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT);
-
if (srcFormat != GL_DEPTH_COMPONENT && ctx->Pixel.DepthScale == 1.0f &&
ctx->Pixel.DepthBias == 0.0f &&
!srcPacking->SwapBytes) {
dstImageOffsets,
srcWidth, srcHeight, srcDepth, srcFormat, srcType,
srcAddr, srcPacking);
- } else if (srcFormat == GL_DEPTH_COMPONENT) {
+ }
+ else if (srcFormat == GL_DEPTH_COMPONENT) {
/* In case we only upload depth we need to preserve the stencil */
for (img = 0; img < srcDepth; img++) {
GLuint *dstRow = (GLuint *) dstAddr
if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */
keepstencil = GL_TRUE;
- } else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */
+ }
+ else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */
keepdepth = GL_TRUE;
}
GLint img, row;
ASSERT(dstFormat == MESA_FORMAT_S8_Z24);
- ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT || srcFormat == GL_STENCIL_INDEX);
- ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT);
+ ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT ||
+ srcFormat == GL_DEPTH_COMPONENT ||
+ srcFormat == GL_STENCIL_INDEX);
+ ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT ||
+ srcType == GL_UNSIGNED_INT_24_8_EXT);
for (img = 0; img < srcDepth; img++) {
GLuint *dstRow = (GLuint *) dstAddr
if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */
keepstencil = GL_TRUE;
- } else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */
+ }
+ else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */
keepdepth = GL_TRUE;
}
return GL_TRUE;
}
+
+/**
+ * Store simple 8-bit/value stencil texture data.
+ */
+static GLboolean
+_mesa_texstore_s8(TEXSTORE_PARAMS)
+{
+ ASSERT(dstFormat == MESA_FORMAT_S8);
+ ASSERT(srcFormat == GL_STENCIL_INDEX);
+
+ if (!ctx->_ImageTransferState &&
+ !srcPacking->SwapBytes &&
+ baseInternalFormat == srcFormat &&
+ srcType == GL_UNSIGNED_BYTE) {
+ /* simple memcpy path */
+ memcpy_texture(ctx, dims,
+ dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride,
+ dstImageOffsets,
+ srcWidth, srcHeight, srcDepth, srcFormat, srcType,
+ srcAddr, srcPacking);
+ }
+ else {
+ const GLint srcRowStride
+ = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
+ / sizeof(GLuint);
+ GLint img, row;
+
+ for (img = 0; img < srcDepth; img++) {
+ GLubyte *dstRow = (GLubyte *) dstAddr
+ + dstImageOffsets[dstZoffset + img]
+ + dstYoffset * dstRowStride / sizeof(GLuint)
+ + dstXoffset;
+ const GLuint *src
+ = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
+ srcWidth, srcHeight,
+ srcFormat, srcType,
+ img, 0, 0);
+ for (row = 0; row < srcHeight; row++) {
+ GLubyte stencil[MAX_WIDTH];
+ GLint i;
+
+ /* get the 8-bit stencil values */
+ _mesa_unpack_stencil_span(ctx, srcWidth,
+ GL_UNSIGNED_BYTE, /* dst type */
+ stencil, /* dst addr */
+ srcType, src, srcPacking,
+ ctx->_ImageTransferState);
+ /* merge stencil values into depth values */
+ for (i = 0; i < srcWidth; i++)
+ dstRow[i] = stencil[i];
+
+ src += srcRowStride;
+ dstRow += dstRowStride / sizeof(GLubyte);
+ }
+ }
+
+ }
+
+ return GL_TRUE;
+}
+
+
/**
* Store an image in any of the formats:
* _mesa_texformat_rgba_float32
return GL_TRUE;
}
-static GLboolean
-_mesa_texstore_s8(TEXSTORE_PARAMS)
-{
- ASSERT(dstFormat == MESA_FORMAT_S8);
- ASSERT(srcFormat == GL_STENCIL_INDEX);
- if (!ctx->_ImageTransferState &&
- !srcPacking->SwapBytes &&
- baseInternalFormat == srcFormat &&
- srcType == GL_UNSIGNED_BYTE) {
- /* simple memcpy path */
- memcpy_texture(ctx, dims,
- dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
- dstRowStride,
- dstImageOffsets,
- srcWidth, srcHeight, srcDepth, srcFormat, srcType,
- srcAddr, srcPacking);
- } else {
- const GLint srcRowStride
- = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
- / sizeof(GLuint);
- GLint img, row;
-
- for (img = 0; img < srcDepth; img++) {
- GLubyte *dstRow = (GLubyte *) dstAddr
- + dstImageOffsets[dstZoffset + img]
- + dstYoffset * dstRowStride / sizeof(GLuint)
- + dstXoffset;
- const GLuint *src
- = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
- srcWidth, srcHeight,
- srcFormat, srcType,
- img, 0, 0);
- for (row = 0; row < srcHeight; row++) {
- GLubyte stencil[MAX_WIDTH];
- GLint i;
-
- /* get the 8-bit stencil values */
- _mesa_unpack_stencil_span(ctx, srcWidth,
- GL_UNSIGNED_BYTE, /* dst type */
- stencil, /* dst addr */
- srcType, src, srcPacking,
- ctx->_ImageTransferState);
- /* merge stencil values into depth values */
- for (i = 0; i < srcWidth; i++)
- dstRow[i] = stencil[i];
-
- src += srcRowStride;
- dstRow += dstRowStride / sizeof(GLubyte);
- }
- }
-
- }
-
- return GL_TRUE;
-}
/**
* As above, but store 16-bit floats.
newDstFormat = MESA_FORMAT_RGB888;
k = _mesa_texstore_rgb888(ctx, dims, baseInternalFormat,
- newDstFormat, dstAddr,
- dstXoffset, dstYoffset, dstZoffset,
- dstRowStride, dstImageOffsets,
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType,
- srcAddr, srcPacking);
+ newDstFormat, dstAddr,
+ dstXoffset, dstYoffset, dstZoffset,
+ dstRowStride, dstImageOffsets,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType,
+ srcAddr, srcPacking);
return k;
}
/**
- * Table mapping MESA_FORMAT_8 to _mesa_texstore_*()
+ * Table mapping MESA_FORMAT_* to _mesa_texstore_*()
* XXX this is somewhat temporary.
*/
static const struct {
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