diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_tile.c')
| -rw-r--r-- | src/gallium/auxiliary/util/u_tile.c | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/src/gallium/auxiliary/util/u_tile.c b/src/gallium/auxiliary/util/u_tile.c index 43b45eb9260..33cdbe40157 100644 --- a/src/gallium/auxiliary/util/u_tile.c +++ b/src/gallium/auxiliary/util/u_tile.c @@ -137,185 +137,6 @@ z16_get_tile_rgba(const ushort *src, -/*** PIPE_FORMAT_A8B8G8R8_SRGB ***/ - -/** - * Convert an 8-bit sRGB value from non-linear space to a - * linear RGB value in [0, 1]. - * Implemented with a 256-entry lookup table. - */ -static INLINE float -srgb_to_linear(ubyte cs8) -{ - static float table[256]; - static boolean tableReady = FALSE; - if (!tableReady) { - /* compute lookup table now */ - uint i; - for (i = 0; i < 256; i++) { - const float cs = ubyte_to_float(i); - if (cs <= 0.04045) { - table[i] = cs / 12.92f; - } - else { - table[i] = (float) powf((cs + 0.055) / 1.055, 2.4); - } - } - tableReady = TRUE; - } - return table[cs8]; -} - - -/** - * Convert linear float in [0,1] to an srgb ubyte value in [0,255]. - * XXX this hasn't been tested (render to srgb surface). - * XXX this needs optimization. - */ -static INLINE ubyte -linear_to_srgb(float cl) -{ - if (cl >= 1.0F) - return 255; - else if (cl >= 0.0031308F) - return float_to_ubyte(1.055F * powf(cl, 0.41666F) - 0.055F); - else if (cl > 0.0F) - return float_to_ubyte(12.92F * cl); - else - return 0.0; -} - - -static void -a8r8g8b8_srgb_get_tile_rgba(const unsigned *src, - unsigned w, unsigned h, - float *p, - unsigned dst_stride) -{ - unsigned i, j; - - for (i = 0; i < h; i++) { - float *pRow = p; - for (j = 0; j < w; j++, pRow += 4) { - const unsigned pixel = *src++; - pRow[0] = srgb_to_linear((pixel >> 16) & 0xff); - pRow[1] = srgb_to_linear((pixel >> 8) & 0xff); - pRow[2] = srgb_to_linear((pixel >> 0) & 0xff); - pRow[3] = ubyte_to_float((pixel >> 24) & 0xff); - } - p += dst_stride; - } -} - -static void -a8r8g8b8_srgb_put_tile_rgba(unsigned *dst, - unsigned w, unsigned h, - const float *p, - unsigned src_stride) -{ - unsigned i, j; - - for (i = 0; i < h; i++) { - const float *pRow = p; - for (j = 0; j < w; j++, pRow += 4) { - unsigned r, g, b, a; - r = linear_to_srgb(pRow[0]); - g = linear_to_srgb(pRow[1]); - b = linear_to_srgb(pRow[2]); - a = float_to_ubyte(pRow[3]); - *dst++ = (a << 24) | (r << 16) | (g << 8) | b; - } - p += src_stride; - } -} - - -/*** PIPE_FORMAT_L8A8_SRGB ***/ - -static void -a8l8_srgb_get_tile_rgba(const ushort *src, - unsigned w, unsigned h, - float *p, - unsigned dst_stride) -{ - unsigned i, j; - - for (i = 0; i < h; i++) { - float *pRow = p; - for (j = 0; j < w; j++, pRow += 4) { - ushort p = *src++; - pRow[0] = - pRow[1] = - pRow[2] = srgb_to_linear(p & 0xff); - pRow[3] = ubyte_to_float(p >> 8); - } - p += dst_stride; - } -} - -static void -a8l8_srgb_put_tile_rgba(ushort *dst, - unsigned w, unsigned h, - const float *p, - unsigned src_stride) -{ - unsigned i, j; - - for (i = 0; i < h; i++) { - const float *pRow = p; - for (j = 0; j < w; j++, pRow += 4) { - unsigned r, a; - r = linear_to_srgb(pRow[0]); - a = float_to_ubyte(pRow[3]); - *dst++ = (a << 8) | r; - } - p += src_stride; - } -} - - -/*** PIPE_FORMAT_L8_SRGB ***/ - -static void -l8_srgb_get_tile_rgba(const ubyte *src, - unsigned w, unsigned h, - float *p, - unsigned dst_stride) -{ - unsigned i, j; - - for (i = 0; i < h; i++) { - float *pRow = p; - for (j = 0; j < w; j++, src++, pRow += 4) { - pRow[0] = - pRow[1] = - pRow[2] = srgb_to_linear(*src); - pRow[3] = 1.0; - } - p += dst_stride; - } -} - -static void -l8_srgb_put_tile_rgba(ubyte *dst, - unsigned w, unsigned h, - const float *p, - unsigned src_stride) -{ - unsigned i, j; - - for (i = 0; i < h; i++) { - const float *pRow = p; - for (j = 0; j < w; j++, pRow += 4) { - unsigned r; - r = linear_to_srgb(pRow[0]); - *dst++ = (ubyte) r; - } - p += src_stride; - } -} - - /*** PIPE_FORMAT_Z32_UNORM ***/ /** @@ -518,15 +339,6 @@ pipe_tile_raw_to_rgba(enum pipe_format format, float *dst, unsigned dst_stride) { switch (format) { - case PIPE_FORMAT_B8G8R8A8_SRGB: - a8r8g8b8_srgb_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride); - break; - case PIPE_FORMAT_L8A8_SRGB: - a8l8_srgb_get_tile_rgba((ushort *) src, w, h, dst, dst_stride); - break; - case PIPE_FORMAT_L8_SRGB: - l8_srgb_get_tile_rgba((ubyte *) src, w, h, dst, dst_stride); - break; case PIPE_FORMAT_Z16_UNORM: z16_get_tile_rgba((ushort *) src, w, h, dst, dst_stride); break; @@ -670,15 +482,6 @@ pipe_put_tile_rgba(struct pipe_context *pipe, return; switch (format) { - case PIPE_FORMAT_B8G8R8A8_SRGB: - a8r8g8b8_srgb_put_tile_rgba((unsigned *) packed, w, h, p, src_stride); - break; - case PIPE_FORMAT_L8A8_SRGB: - a8l8_srgb_put_tile_rgba((ushort *) packed, w, h, p, src_stride); - break; - case PIPE_FORMAT_L8_SRGB: - l8_srgb_put_tile_rgba((ubyte *) packed, w, h, p, src_stride); - break; case PIPE_FORMAT_Z16_UNORM: /*z16_put_tile_rgba((ushort *) packed, w, h, p, src_stride);*/ break; |