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Diffstat (limited to 'mesalib/src/mesa/main/texcompress_fxt1.c')
-rw-r--r--mesalib/src/mesa/main/texcompress_fxt1.c168
1 files changed, 91 insertions, 77 deletions
diff --git a/mesalib/src/mesa/main/texcompress_fxt1.c b/mesalib/src/mesa/main/texcompress_fxt1.c
index a75487ce2..0437cfcc1 100644
--- a/mesalib/src/mesa/main/texcompress_fxt1.c
+++ b/mesalib/src/mesa/main/texcompress_fxt1.c
@@ -52,7 +52,7 @@ fxt1_encode (GLuint width, GLuint height, GLint comps,
void
fxt1_decode_1 (const void *texture, GLint stride,
- GLint i, GLint j, GLchan *rgba);
+ GLint i, GLint j, GLubyte *rgba);
/**
@@ -61,11 +61,11 @@ fxt1_decode_1 (const void *texture, GLint stride,
GLboolean
_mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS)
{
- const GLchan *pixels;
+ const GLubyte *pixels;
GLint srcRowStride;
GLubyte *dst;
const GLint texWidth = dstRowStride * 8 / 16; /* a bit of a hack */
- const GLchan *tempImage = NULL;
+ const GLubyte *tempImage = NULL;
ASSERT(dstFormat == MESA_FORMAT_RGB_FXT1);
ASSERT(dstXoffset % 8 == 0);
@@ -75,11 +75,11 @@ _mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS)
(void) dstImageOffsets;
if (srcFormat != GL_RGB ||
- srcType != CHAN_TYPE ||
+ srcType != GL_UNSIGNED_BYTE ||
ctx->_ImageTransferState ||
srcPacking->SwapBytes) {
- /* convert image to RGB/GLchan */
- tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ /* convert image to RGB/GLubyte */
+ tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
baseInternalFormat,
_mesa_get_format_base_format(dstFormat),
srcWidth, srcHeight, srcDepth,
@@ -92,9 +92,9 @@ _mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS)
srcFormat = GL_RGB;
}
else {
- pixels = (const GLchan *) srcAddr;
+ pixels = (const GLubyte *) srcAddr;
srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat,
- srcType) / sizeof(GLchan);
+ srcType) / sizeof(GLubyte);
}
dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
@@ -117,11 +117,11 @@ _mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS)
GLboolean
_mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS)
{
- const GLchan *pixels;
+ const GLubyte *pixels;
GLint srcRowStride;
GLubyte *dst;
GLint texWidth = dstRowStride * 8 / 16; /* a bit of a hack */
- const GLchan *tempImage = NULL;
+ const GLubyte *tempImage = NULL;
ASSERT(dstFormat == MESA_FORMAT_RGBA_FXT1);
ASSERT(dstXoffset % 8 == 0);
@@ -131,11 +131,11 @@ _mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS)
(void) dstImageOffsets;
if (srcFormat != GL_RGBA ||
- srcType != CHAN_TYPE ||
+ srcType != GL_UNSIGNED_BYTE ||
ctx->_ImageTransferState ||
srcPacking->SwapBytes) {
- /* convert image to RGBA/GLchan */
- tempImage = _mesa_make_temp_chan_image(ctx, dims,
+ /* convert image to RGBA/GLubyte */
+ tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
baseInternalFormat,
_mesa_get_format_base_format(dstFormat),
srcWidth, srcHeight, srcDepth,
@@ -148,9 +148,9 @@ _mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS)
srcFormat = GL_RGBA;
}
else {
- pixels = (const GLchan *) srcAddr;
+ pixels = (const GLubyte *) srcAddr;
srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat,
- srcType) / sizeof(GLchan);
+ srcType) / sizeof(GLubyte);
}
dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
@@ -171,14 +171,14 @@ void
_mesa_fetch_texel_2d_f_rgba_fxt1( const struct swrast_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel )
{
- /* just sample as GLchan and convert to float here */
- GLchan rgba[4];
+ /* just sample as GLubyte and convert to float here */
+ GLubyte rgba[4];
(void) k;
fxt1_decode_1(texImage->Base.Data, texImage->Base.RowStride, i, j, rgba);
- texel[RCOMP] = CHAN_TO_FLOAT(rgba[RCOMP]);
- texel[GCOMP] = CHAN_TO_FLOAT(rgba[GCOMP]);
- texel[BCOMP] = CHAN_TO_FLOAT(rgba[BCOMP]);
- texel[ACOMP] = CHAN_TO_FLOAT(rgba[ACOMP]);
+ texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
+ texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
+ texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
+ texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]);
}
@@ -186,13 +186,13 @@ void
_mesa_fetch_texel_2d_f_rgb_fxt1( const struct swrast_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel )
{
- /* just sample as GLchan and convert to float here */
- GLchan rgba[4];
+ /* just sample as GLubyte and convert to float here */
+ GLubyte rgba[4];
(void) k;
fxt1_decode_1(texImage->Base.Data, texImage->Base.RowStride, i, j, rgba);
- texel[RCOMP] = CHAN_TO_FLOAT(rgba[RCOMP]);
- texel[GCOMP] = CHAN_TO_FLOAT(rgba[GCOMP]);
- texel[BCOMP] = CHAN_TO_FLOAT(rgba[BCOMP]);
+ texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]);
+ texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]);
+ texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]);
texel[ACOMP] = 1.0F;
}
@@ -1289,6 +1289,41 @@ fxt1_quantize (GLuint *cc, const GLubyte *lines[], GLint comps)
}
+
+/**
+ * Upscale an image by replication, not (typical) stretching.
+ * We use this when the image width or height is less than a
+ * certain size (4, 8) and we need to upscale an image.
+ */
+static void
+upscale_teximage2d(GLsizei inWidth, GLsizei inHeight,
+ GLsizei outWidth, GLsizei outHeight,
+ GLint comps, const GLubyte *src, GLint srcRowStride,
+ GLubyte *dest )
+{
+ GLint i, j, k;
+
+ ASSERT(outWidth >= inWidth);
+ ASSERT(outHeight >= inHeight);
+#if 0
+ ASSERT(inWidth == 1 || inWidth == 2 || inHeight == 1 || inHeight == 2);
+ ASSERT((outWidth & 3) == 0);
+ ASSERT((outHeight & 3) == 0);
+#endif
+
+ for (i = 0; i < outHeight; i++) {
+ const GLint ii = i % inHeight;
+ for (j = 0; j < outWidth; j++) {
+ const GLint jj = j % inWidth;
+ for (k = 0; k < comps; k++) {
+ dest[(i * outWidth + j) * comps + k]
+ = src[ii * srcRowStride + jj * comps + k];
+ }
+ }
+ }
+}
+
+
static void
fxt1_encode (GLuint width, GLuint height, GLint comps,
const void *source, GLint srcRowStride,
@@ -1305,42 +1340,21 @@ fxt1_encode (GLuint width, GLuint height, GLint comps,
if ((width & 7) | (height & 3)) {
GLint newWidth = (width + 7) & ~7;
GLint newHeight = (height + 3) & ~3;
- newSource = malloc(comps * newWidth * newHeight * sizeof(GLchan));
+ newSource = malloc(comps * newWidth * newHeight * sizeof(GLubyte));
if (!newSource) {
GET_CURRENT_CONTEXT(ctx);
_mesa_error(ctx, GL_OUT_OF_MEMORY, "texture compression");
goto cleanUp;
}
- _mesa_upscale_teximage2d(width, height, newWidth, newHeight,
- comps, (const GLchan *) source,
- srcRowStride, (GLchan *) newSource);
+ upscale_teximage2d(width, height, newWidth, newHeight,
+ comps, (const GLubyte *) source,
+ srcRowStride, (GLubyte *) newSource);
source = newSource;
width = newWidth;
height = newHeight;
srcRowStride = comps * newWidth;
}
- /* convert from 16/32-bit channels to GLubyte if needed */
- if (CHAN_TYPE != GL_UNSIGNED_BYTE) {
- const GLuint n = width * height * comps;
- const GLchan *src = (const GLchan *) source;
- GLubyte *dest = (GLubyte *) malloc(n * sizeof(GLubyte));
- GLuint i;
- if (!dest) {
- GET_CURRENT_CONTEXT(ctx);
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture compression");
- goto cleanUp;
- }
- for (i = 0; i < n; i++) {
- dest[i] = CHAN_TO_UBYTE(src[i]);
- }
- if (newSource != NULL) {
- free(newSource);
- }
- newSource = dest; /* we'll free this buffer before returning */
- source = dest; /* the new, GLubyte incoming image */
- }
-
data = (const GLubyte *) source;
destRowStride = (destRowStride - width * 2) / 4;
for (y = 0; y < height; y += 4) {
@@ -1402,7 +1416,7 @@ static const GLubyte _rgb_scale_6[] = {
static void
-fxt1_decode_1HI (const GLubyte *code, GLint t, GLchan *rgba)
+fxt1_decode_1HI (const GLubyte *code, GLint t, GLubyte *rgba)
{
const GLuint *cc;
@@ -1428,16 +1442,16 @@ fxt1_decode_1HI (const GLubyte *code, GLint t, GLchan *rgba)
g = LERP(6, t, UP5(CC_SEL(cc, 5)), UP5(CC_SEL(cc, 20)));
r = LERP(6, t, UP5(CC_SEL(cc, 10)), UP5(CC_SEL(cc, 25)));
}
- rgba[RCOMP] = UBYTE_TO_CHAN(r);
- rgba[GCOMP] = UBYTE_TO_CHAN(g);
- rgba[BCOMP] = UBYTE_TO_CHAN(b);
- rgba[ACOMP] = CHAN_MAX;
+ rgba[RCOMP] = r;
+ rgba[GCOMP] = g;
+ rgba[BCOMP] = b;
+ rgba[ACOMP] = 255;
}
}
static void
-fxt1_decode_1CHROMA (const GLubyte *code, GLint t, GLchan *rgba)
+fxt1_decode_1CHROMA (const GLubyte *code, GLint t, GLubyte *rgba)
{
const GLuint *cc;
GLuint kk;
@@ -1452,15 +1466,15 @@ fxt1_decode_1CHROMA (const GLubyte *code, GLint t, GLchan *rgba)
t *= 15;
cc = (const GLuint *)(code + 8 + t / 8);
kk = cc[0] >> (t & 7);
- rgba[BCOMP] = UBYTE_TO_CHAN( UP5(kk) );
- rgba[GCOMP] = UBYTE_TO_CHAN( UP5(kk >> 5) );
- rgba[RCOMP] = UBYTE_TO_CHAN( UP5(kk >> 10) );
- rgba[ACOMP] = CHAN_MAX;
+ rgba[BCOMP] = UP5(kk);
+ rgba[GCOMP] = UP5(kk >> 5);
+ rgba[RCOMP] = UP5(kk >> 10);
+ rgba[ACOMP] = 255;
}
static void
-fxt1_decode_1MIXED (const GLubyte *code, GLint t, GLchan *rgba)
+fxt1_decode_1MIXED (const GLubyte *code, GLint t, GLubyte *rgba)
{
const GLuint *cc;
GLuint col[2][3];
@@ -1515,10 +1529,10 @@ fxt1_decode_1MIXED (const GLubyte *code, GLint t, GLchan *rgba)
g = (UP5(col[0][GCOMP]) + UP6(col[1][GCOMP], glsb)) / 2;
r = (UP5(col[0][RCOMP]) + UP5(col[1][RCOMP])) / 2;
}
- rgba[RCOMP] = UBYTE_TO_CHAN(r);
- rgba[GCOMP] = UBYTE_TO_CHAN(g);
- rgba[BCOMP] = UBYTE_TO_CHAN(b);
- rgba[ACOMP] = CHAN_MAX;
+ rgba[RCOMP] = r;
+ rgba[GCOMP] = g;
+ rgba[BCOMP] = b;
+ rgba[ACOMP] = 255;
}
} else {
/* alpha[0] == 0 */
@@ -1537,16 +1551,16 @@ fxt1_decode_1MIXED (const GLubyte *code, GLint t, GLchan *rgba)
UP6(col[1][GCOMP], glsb));
r = LERP(3, t, UP5(col[0][RCOMP]), UP5(col[1][RCOMP]));
}
- rgba[RCOMP] = UBYTE_TO_CHAN(r);
- rgba[GCOMP] = UBYTE_TO_CHAN(g);
- rgba[BCOMP] = UBYTE_TO_CHAN(b);
- rgba[ACOMP] = CHAN_MAX;
+ rgba[RCOMP] = r;
+ rgba[GCOMP] = g;
+ rgba[BCOMP] = b;
+ rgba[ACOMP] = 255;
}
}
static void
-fxt1_decode_1ALPHA (const GLubyte *code, GLint t, GLchan *rgba)
+fxt1_decode_1ALPHA (const GLubyte *code, GLint t, GLubyte *rgba)
{
const GLuint *cc;
GLubyte r, g, b, a;
@@ -1613,18 +1627,18 @@ fxt1_decode_1ALPHA (const GLubyte *code, GLint t, GLchan *rgba)
r = UP5(kk >> 10);
}
}
- rgba[RCOMP] = UBYTE_TO_CHAN(r);
- rgba[GCOMP] = UBYTE_TO_CHAN(g);
- rgba[BCOMP] = UBYTE_TO_CHAN(b);
- rgba[ACOMP] = UBYTE_TO_CHAN(a);
+ rgba[RCOMP] = r;
+ rgba[GCOMP] = g;
+ rgba[BCOMP] = b;
+ rgba[ACOMP] = a;
}
void
fxt1_decode_1 (const void *texture, GLint stride, /* in pixels */
- GLint i, GLint j, GLchan *rgba)
+ GLint i, GLint j, GLubyte *rgba)
{
- static void (*decode_1[]) (const GLubyte *, GLint, GLchan *) = {
+ static void (*decode_1[]) (const GLubyte *, GLint, GLubyte *) = {
fxt1_decode_1HI, /* cc-high = "00?" */
fxt1_decode_1HI, /* cc-high = "00?" */
fxt1_decode_1CHROMA, /* cc-chroma = "010" */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 12:31:09 +0000