From 81b16350fa2e7c1b47d976be12d2313283f22e24 Mon Sep 17 00:00:00 2001 From: Ilia Mirkin Date: Sun, 22 Nov 2015 14:03:29 -0500 Subject: [PATCH] freedreno/a4xx: use a factor of 32767 for snorm8 blending It appears that the hardware wants the integer to be scaled the same way that the hardware representation is. snorm16 uses one of the float factors, so this is only relevant for snorm8. This fixes a number of subcases of bin/fbo-blending-formats GL_EXT_texture_snorm Signed-off-by: Ilia Mirkin Cc: mesa-stable@lists.freedesktop.org --- src/gallium/drivers/freedreno/a4xx/fd4_emit.c | 39 ++++++++++++++++--- 1 file changed, 34 insertions(+), 5 deletions(-) diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_emit.c b/src/gallium/drivers/freedreno/a4xx/fd4_emit.c index 0e4a8cad8c7..69f263e3ba8 100644 --- a/src/gallium/drivers/freedreno/a4xx/fd4_emit.c +++ b/src/gallium/drivers/freedreno/a4xx/fd4_emit.c @@ -662,19 +662,48 @@ fd4_emit_state(struct fd_context *ctx, struct fd_ringbuffer *ring, A4XX_RB_FS_OUTPUT_SAMPLE_MASK(0xffff)); } - if (dirty & FD_DIRTY_BLEND_COLOR) { + if (dirty & (FD_DIRTY_BLEND_COLOR | FD_DIRTY_FRAMEBUFFER)) { struct pipe_blend_color *bcolor = &ctx->blend_color; + struct pipe_framebuffer_state *pfb = &ctx->framebuffer; + float factor = 65535.0; + int i; + + for (i = 0; i < pfb->nr_cbufs; i++) { + enum pipe_format format = pipe_surface_format(pfb->cbufs[i]); + const struct util_format_description *desc = + util_format_description(format); + int j; + + if (desc->is_mixed) + continue; + + j = util_format_get_first_non_void_channel(format); + if (j == -1) + continue; + + if (desc->channel[j].size > 8 || !desc->channel[j].normalized || + desc->channel[j].pure_integer) + continue; + + /* Just use the first unorm8/snorm8 render buffer. Can't keep + * everyone happy. + */ + if (desc->channel[j].type == UTIL_FORMAT_TYPE_SIGNED) + factor = 32767.0; + break; + } + OUT_PKT0(ring, REG_A4XX_RB_BLEND_RED, 8); - OUT_RING(ring, A4XX_RB_BLEND_RED_UINT(bcolor->color[0] * 65535.0) | + OUT_RING(ring, A4XX_RB_BLEND_RED_UINT(bcolor->color[0] * factor) | A4XX_RB_BLEND_RED_FLOAT(bcolor->color[0])); OUT_RING(ring, A4XX_RB_BLEND_RED_F32(bcolor->color[0])); - OUT_RING(ring, A4XX_RB_BLEND_GREEN_UINT(bcolor->color[1] * 65535.0) | + OUT_RING(ring, A4XX_RB_BLEND_GREEN_UINT(bcolor->color[1] * factor) | A4XX_RB_BLEND_GREEN_FLOAT(bcolor->color[1])); OUT_RING(ring, A4XX_RB_BLEND_GREEN_F32(bcolor->color[1])); - OUT_RING(ring, A4XX_RB_BLEND_BLUE_UINT(bcolor->color[2] * 65535.0) | + OUT_RING(ring, A4XX_RB_BLEND_BLUE_UINT(bcolor->color[2] * factor) | A4XX_RB_BLEND_BLUE_FLOAT(bcolor->color[2])); OUT_RING(ring, A4XX_RB_BLEND_BLUE_F32(bcolor->color[2])); - OUT_RING(ring, A4XX_RB_BLEND_ALPHA_UINT(bcolor->color[3] * 65535.0) | + OUT_RING(ring, A4XX_RB_BLEND_ALPHA_UINT(bcolor->color[3] * factor) | A4XX_RB_BLEND_ALPHA_FLOAT(bcolor->color[3])); OUT_RING(ring, A4XX_RB_BLEND_ALPHA_F32(bcolor->color[3])); } -- 2.30.2