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author | Ray Strode <rstrode@redhat.com> | 2008-06-10 14:11:29 -0400 |
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committer | Ray Strode <rstrode@redhat.com> | 2008-06-10 14:11:29 -0400 |
commit | 321a08fc0feaee41ad5c70a67cc9b1fa1fcdc234 (patch) | |
tree | ab339cc09b8cec78afa2ed7d605b6c51e49127cc | |
parent | 1d30484098b9ad8cb837ee7d3359c45b24eebade (diff) | |
download | plymouth-321a08fc0feaee41ad5c70a67cc9b1fa1fcdc234.tar.gz plymouth-321a08fc0feaee41ad5c70a67cc9b1fa1fcdc234.tar.xz plymouth-321a08fc0feaee41ad5c70a67cc9b1fa1fcdc234.zip |
Check for truecolor in a more direct way
-rw-r--r-- | src/libply/ply-frame-buffer.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/src/libply/ply-frame-buffer.c b/src/libply/ply-frame-buffer.c index beb8021..50bb70b 100644 --- a/src/libply/ply-frame-buffer.c +++ b/src/libply/ply-frame-buffer.c @@ -233,12 +233,6 @@ ply_frame_buffer_query_device (ply_frame_buffer_t *buffer) buffer->alpha_bit_position = variable_screen_info.transp.offset; buffer->bits_for_alpha = variable_screen_info.transp.length; - /* Normally the pixel is divided between the color components. - * If we have less bits per pixel than bits per color component, - * then we know we aren't using a direct color mapping. Instead - * we must be using an indexed palette and a pseudocolor mode, which - * we don't support. - */ if (variable_screen_info.bits_per_pixel < buffer->bits_for_red + buffer->bits_for_green + buffer->bits_for_blue) { @@ -251,6 +245,20 @@ ply_frame_buffer_query_device (ply_frame_buffer_t *buffer) return false; } + /* Normally the pixel is divided into channels between the color components. + * Each channel directly maps to a color channel on the hardware. + * + * There are some odd ball modes that use an indexed palette instead. In + * those cases (pseudocolor, direct color, etc), the pixel value is just an + * index into a lookup table of the real color values. + * + * We don't support that. + */ + if (fixed_screen_info.visual != FB_VISUAL_TRUECOLOR) + { + return false; + } + buffer->bytes_per_pixel = variable_screen_info.bits_per_pixel >> 3; buffer->row_stride = fixed_screen_info.line_length / buffer->bytes_per_pixel; buffer->size = buffer->area.height * buffer->row_stride * buffer->bytes_per_pixel; |