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llvmpipe/u_format: add support for EXT_texture_shared_exponent + EXT_packed_float 

These two are fairly unique types so add specific cases for decoding them.

Passes piglit fbo-clear-format and fbo-generatemipmap-format tests for these
two extensions.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2011-11-07 19:22:01 +00:00
parent ab14915dce
commit 4fd485666a
3 changed files with 42 additions and 3 deletions
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5
src/gallium/auxiliary/util/u_format_pack.py
View File

@ -150,6 +150,11 @@ def is_format_pure_signed(format):
def native_type(format):
'''Get the native appropriate for a format.'''
if format.name == 'PIPE_FORMAT_R11G11B10_FLOAT':
return 'uint32_t'
if format.name == 'PIPE_FORMAT_R9G9B9E5_FLOAT':
return 'uint32_t'
if format.layout == PLAIN:
if not format.is_array():
# For arithmetic pixel formats return the integer type that matches the whole pixel

4
src/gallium/drivers/llvmpipe/lp_screen.c
View File

@ -249,6 +249,10 @@ llvmpipe_is_format_supported( struct pipe_screen *_screen,
if (sample_count > 1)
return FALSE;
if (format_desc->format == PIPE_FORMAT_R11G11B10_FLOAT ||
format_desc->format == PIPE_FORMAT_R9G9B9E5_FLOAT)
return TRUE;
if (bind & PIPE_BIND_RENDER_TARGET) {
if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS ||
format_desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB)

36
src/gallium/drivers/llvmpipe/lp_tile_soa.py
View File

@ -51,6 +51,12 @@ def is_format_supported(format):
# FIXME: Ideally we would support any format combination here.
if format.name == 'PIPE_FORMAT_R11G11B10_FLOAT':
return True;
if format.name == 'PIPE_FORMAT_R9G9B9E5_FLOAT':
return True;
if format.layout != PLAIN:
return False
@ -98,7 +104,19 @@ def generate_format_read(format, dst_channel, dst_native_type, dst_suffix):
else:
assert False
if format.layout == PLAIN:
if format.name == 'PIPE_FORMAT_R11G11B10_FLOAT':
print ' float tmp[3];'
print ' uint8_t r, g, b;'
print ' r11g11b10f_to_float3(*src_pixel++, tmp);'
for i in range(3):
print ' %s = tmp[%d] * 0xff;' % (names[i], i)
elif format.name == 'PIPE_FORMAT_R9G9B9E5_FLOAT':
print ' float tmp[3];'
print ' uint8_t r, g, b;'
print ' rgb9e5_to_float3(*src_pixel++, tmp);'
for i in range(3):
print ' %s = tmp[%d] * 0xff;' % (names[i], i)
elif format.layout == PLAIN:
if not format.is_array():
print ' %s pixel = *src_pixel++;' % src_native_type
shift = 0;
@ -235,7 +253,17 @@ def emit_tile_pixel_unswizzle_code(format, src_channel):
print ' %s *dst_pixel = (%s *)(dst_row + x0*%u);' % (dst_native_type, dst_native_type, format.stride())
print ' for (x = 0; x < TILE_SIZE; ++x) {'
if format.layout == PLAIN:
if format.name == 'PIPE_FORMAT_R11G11B10_FLOAT':
print ' float tmp[3];'
for i in range(3):
print ' tmp[%d] = (float)TILE_PIXEL(src, x, y, %u);' % (i, inv_swizzle[i])
print ' *dst_pixel++ = float3_to_r11g11b10f(tmp);'
elif format.name == 'PIPE_FORMAT_R9G9B9E5_FLOAT':
print ' float tmp[3];'
for i in range(3):
print ' tmp[%d] = (float)TILE_PIXEL(src, x, y, %u);' % (i, inv_swizzle[i])
print ' *dst_pixel++ = float3_to_rgb9e5(tmp);'
elif format.layout == PLAIN:
if not format.is_array():
print ' %s pixel = 0;' % dst_native_type
shift = 0;
@ -577,8 +605,10 @@ def main():
print CopyRight.strip()
print
print '#include "pipe/p_compiler.h"'
print '#include "util/u_format.h"'
print '#include "util/u_math.h"'
print '#include "util/u_format.h"'
print '#include "util/u_format_r11g11b10f.h"'
print '#include "util/u_format_rgb9e5.h"'
print '#include "util/u_half.h"'
print '#include "util/u_cpu_detect.h"'
print '#include "lp_tile_soa.h"'