diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_state.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_state.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c index 4892a1d7a34..0772c1fa537 100644 --- a/src/gallium/drivers/r300/r300_state.c +++ b/src/gallium/drivers/r300/r300_state.c @@ -1553,7 +1553,7 @@ static void r300_set_constant_buffer(struct pipe_context *pipe, struct r300_context* r300 = r300_context(pipe); struct r300_constant_buffer *cbuf; struct pipe_transfer *tr; - void *mapped; + float *mapped; int max_size = 0, max_size_bytes = 0, clamped_size = 0; switch (shader) { @@ -1592,10 +1592,20 @@ static void r300_set_constant_buffer(struct pipe_context *pipe, fprintf(stderr, "r300: Max size of the constant buffer is " "%i*4 floats.\n", max_size); } - clamped_size = MIN2(buf->width0, max_size_bytes); - memcpy(cbuf->constants, mapped, clamped_size); + clamped_size = MIN2(buf->width0, max_size_bytes); cbuf->count = clamped_size / (4 * sizeof(float)); + + if (shader == PIPE_SHADER_FRAGMENT && !r300->screen->caps.is_r500) { + unsigned i,j; + + /* Convert constants to float24. */ + for (i = 0; i < cbuf->count; i++) + for (j = 0; j < 4; j++) + cbuf->constants[i][j] = pack_float24(mapped[i*4+j]); + } else { + memcpy(cbuf->constants, mapped, clamped_size); + } } if (shader == PIPE_SHADER_VERTEX) { |