This patch adds the needed function for ARB_clear_texture.
The function itself is mostly based on the nouveau implementation.
Signed-off-by: Jakob Sinclair <sinclair.ja...@openmailbox.org>
---
src/gallium/drivers/radeon/r600_texture.c | 72 +++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
diff --git a/src/gallium/drivers/radeon/r600_texture.c
b/src/gallium/drivers/radeon/r600_texture.c
index 72af534..ee77a37 100644
--- a/src/gallium/drivers/radeon/r600_texture.c
+++ b/src/gallium/drivers/radeon/r600_texture.c
@@ -1392,6 +1392,77 @@ static void r600_surface_destroy(struct pipe_context
*pipe,
FREE(surface);
}
+static void r600_clear_texture(struct pipe_context *pipe,
+ struct pipe_resource *res,
+ unsigned level,
+ const struct pipe_box *box,
+ const void *data)
+{
+ struct pipe_surface tmpl = {{0}}, *sf;
+
+ tmpl.format = res->format;
+ tmpl.u.tex.first_layer = box->z;
+ tmpl.u.tex.last_layer = box->z + box->depth - 1;
+ tmpl.u.tex.level = level;
+ sf = pipe->create_surface(pipe, res, &tmpl);
+ if (!sf)
+ return;
+
+ if (util_format_is_depth_or_stencil(res->format)) {
+ float depth = 0;
+ uint8_t stencil = 0;
+ unsigned clear = 0;
+ const struct util_format_description *desc =
+ util_format_description(res->format);
+
+ if (util_format_has_depth(desc)) {
+ clear |= PIPE_CLEAR_DEPTH;
+ desc->unpack_z_float(&depth, 0, data, 0, 1, 1);
+ }
+ if (util_format_has_stencil(desc)) {
+ clear |= PIPE_CLEAR_STENCIL;
+ desc->unpack_s_8uint(&stencil, 0, data, 0, 1, 1);
+ }
+ pipe->clear_depth_stencil(pipe, sf, clear, depth, stencil,
+ box->x, box->y, box->width,
box->height);
+ } else {
+ union pipe_color_union color;
+ switch (util_format_get_blocksizebits(res->format)) {
+ case 128:
+ sf->format = PIPE_FORMAT_R32G32B32A32_UINT;
+ memcpy(&color.ui, data, 128 / 8);
+ break;
+ case 64:
+ sf->format = PIPE_FORMAT_R32G32_UINT;
+ memcpy(&color.ui, data, 64 / 8);
+ memset(&color.ui[2], 0, 64 / 8);
+ break;
+ case 32:
+ sf->format = PIPE_FORMAT_R32_UINT;
+ memcpy(&color.ui, data, 32 / 8);
+ memset(&color.ui[1], 0, 96 / 8);
+ break;
+ case 16:
+ sf->format = PIPE_FORMAT_R16_UINT;
+ color.ui[0] = util_cpu_to_le32(
+ util_le16_to_cpu(*(unsigned short *)data));
+ memset(&color.ui[1], 0, 96 / 8);
+ break;
+ case 8:
+ sf->format = PIPE_FORMAT_R8_UINT;
+ color.ui[0] = util_cpu_to_le32(*(unsigned char *)data);
+ memset(&color.ui[1], 0, 96 / 8);
+ break;
+ default:
+ assert(!"Unknown texel element size");
+ return;
+ }
+ pipe->clear_render_target(pipe, sf, &color,
+ box->x, box->y, box->width,
box->height);
+ }
+ pipe->surface_destroy(pipe, sf);
+}
+
unsigned r600_translate_colorswap(enum pipe_format format)
{
const struct util_format_description *desc =
util_format_description(format);
@@ -1658,4 +1729,5 @@ void r600_init_context_texture_functions(struct
r600_common_context *rctx)
{
rctx->b.create_surface = r600_create_surface;
rctx->b.surface_destroy = r600_surface_destroy;
+ rctx->b.clear_texture = r600_clear_texture;
}
--
2.8.0
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