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Diffstat (limited to 'src/gallium/drivers/svga/svga_pipe_sampler.c')
-rw-r--r--src/gallium/drivers/svga/svga_pipe_sampler.c267
1 files changed, 267 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_pipe_sampler.c b/src/gallium/drivers/svga/svga_pipe_sampler.c
new file mode 100644
index 0000000000..f44a0e1325
--- /dev/null
+++ b/src/gallium/drivers/svga/svga_pipe_sampler.c
@@ -0,0 +1,267 @@
+/**********************************************************
+ * Copyright 2008-2009 VMware, Inc. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+#include "util/u_inlines.h"
+#include "pipe/p_defines.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "tgsi/tgsi_parse.h"
+
+#include "svga_context.h"
+#include "svga_resource_texture.h"
+
+#include "svga_debug.h"
+
+static INLINE unsigned
+translate_wrap_mode(unsigned wrap)
+{
+ switch (wrap) {
+ case PIPE_TEX_WRAP_REPEAT:
+ return SVGA3D_TEX_ADDRESS_WRAP;
+
+ case PIPE_TEX_WRAP_CLAMP:
+ return SVGA3D_TEX_ADDRESS_CLAMP;
+
+ case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
+ /* Unfortunately SVGA3D_TEX_ADDRESS_EDGE not respected by
+ * hardware.
+ */
+ return SVGA3D_TEX_ADDRESS_CLAMP;
+
+ case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
+ return SVGA3D_TEX_ADDRESS_BORDER;
+
+ case PIPE_TEX_WRAP_MIRROR_REPEAT:
+ return SVGA3D_TEX_ADDRESS_MIRROR;
+
+ case PIPE_TEX_WRAP_MIRROR_CLAMP:
+ case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
+ case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
+ return SVGA3D_TEX_ADDRESS_MIRRORONCE;
+
+ default:
+ assert(0);
+ return SVGA3D_TEX_ADDRESS_WRAP;
+ }
+}
+
+static INLINE unsigned translate_img_filter( unsigned filter )
+{
+ switch (filter) {
+ case PIPE_TEX_FILTER_NEAREST: return SVGA3D_TEX_FILTER_NEAREST;
+ case PIPE_TEX_FILTER_LINEAR: return SVGA3D_TEX_FILTER_LINEAR;
+ default:
+ assert(0);
+ return SVGA3D_TEX_FILTER_NEAREST;
+ }
+}
+
+static INLINE unsigned translate_mip_filter( unsigned filter )
+{
+ switch (filter) {
+ case PIPE_TEX_MIPFILTER_NONE: return SVGA3D_TEX_FILTER_NONE;
+ case PIPE_TEX_MIPFILTER_NEAREST: return SVGA3D_TEX_FILTER_NEAREST;
+ case PIPE_TEX_MIPFILTER_LINEAR: return SVGA3D_TEX_FILTER_LINEAR;
+ default:
+ assert(0);
+ return SVGA3D_TEX_FILTER_NONE;
+ }
+}
+
+static void *
+svga_create_sampler_state(struct pipe_context *pipe,
+ const struct pipe_sampler_state *sampler)
+{
+ struct svga_context *svga = svga_context(pipe);
+ struct svga_sampler_state *cso = CALLOC_STRUCT( svga_sampler_state );
+
+ cso->mipfilter = translate_mip_filter(sampler->min_mip_filter);
+ cso->magfilter = translate_img_filter( sampler->mag_img_filter );
+ cso->minfilter = translate_img_filter( sampler->min_img_filter );
+ cso->aniso_level = MAX2( sampler->max_anisotropy, 1 );
+ if(sampler->max_anisotropy)
+ cso->magfilter = cso->minfilter = SVGA3D_TEX_FILTER_ANISOTROPIC;
+ cso->lod_bias = sampler->lod_bias;
+ cso->addressu = translate_wrap_mode(sampler->wrap_s);
+ cso->addressv = translate_wrap_mode(sampler->wrap_t);
+ cso->addressw = translate_wrap_mode(sampler->wrap_r);
+ cso->normalized_coords = sampler->normalized_coords;
+ cso->compare_mode = sampler->compare_mode;
+ cso->compare_func = sampler->compare_func;
+
+ {
+ uint32 r = float_to_ubyte(sampler->border_color[0]);
+ uint32 g = float_to_ubyte(sampler->border_color[1]);
+ uint32 b = float_to_ubyte(sampler->border_color[2]);
+ uint32 a = float_to_ubyte(sampler->border_color[3]);
+
+ cso->bordercolor = (a << 24) | (r << 16) | (g << 8) | b;
+ }
+
+ /* No SVGA3D support for:
+ * - min/max LOD clamping
+ */
+ cso->min_lod = 0;
+ cso->view_min_lod = MAX2(sampler->min_lod, 0);
+ cso->view_max_lod = MAX2(sampler->max_lod, 0);
+
+ /* Use min_mipmap */
+ if (svga->debug.use_min_mipmap) {
+ if (cso->view_min_lod == cso->view_max_lod) {
+ cso->min_lod = cso->view_min_lod;
+ cso->view_min_lod = 0;
+ cso->view_max_lod = 1000; /* Just a high number */
+ cso->mipfilter = SVGA3D_TEX_FILTER_NONE;
+ }
+ }
+
+ SVGA_DBG(DEBUG_VIEWS, "min %u, view(min %u, max %u) lod, mipfilter %s\n",
+ cso->min_lod, cso->view_min_lod, cso->view_max_lod,
+ cso->mipfilter == SVGA3D_TEX_FILTER_NONE ? "SVGA3D_TEX_FILTER_NONE" : "SOMETHING");
+
+ return cso;
+}
+
+static void svga_bind_sampler_states(struct pipe_context *pipe,
+ unsigned num, void **sampler)
+{
+ struct svga_context *svga = svga_context(pipe);
+ unsigned i;
+
+ assert(num <= PIPE_MAX_SAMPLERS);
+
+ /* Check for no-op */
+ if (num == svga->curr.num_samplers &&
+ !memcmp(svga->curr.sampler, sampler, num * sizeof(void *))) {
+ if (0) debug_printf("sampler noop\n");
+ return;
+ }
+
+ for (i = 0; i < num; i++)
+ svga->curr.sampler[i] = sampler[i];
+
+ for (i = num; i < svga->curr.num_samplers; i++)
+ svga->curr.sampler[i] = NULL;
+
+ svga->curr.num_samplers = num;
+ svga->dirty |= SVGA_NEW_SAMPLER;
+}
+
+static void svga_delete_sampler_state(struct pipe_context *pipe,
+ void *sampler)
+{
+ FREE(sampler);
+}
+
+
+static struct pipe_sampler_view *
+svga_create_sampler_view(struct pipe_context *pipe,
+ struct pipe_resource *texture,
+ const struct pipe_sampler_view *templ)
+{
+ struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view);
+
+ if (view) {
+ *view = *templ;
+ view->reference.count = 1;
+ view->texture = NULL;
+ pipe_resource_reference(&view->texture, texture);
+ view->context = pipe;
+ }
+
+ return view;
+}
+
+
+static void
+svga_sampler_view_destroy(struct pipe_context *pipe,
+ struct pipe_sampler_view *view)
+{
+ pipe_resource_reference(&view->texture, NULL);
+ FREE(view);
+}
+
+static void svga_set_sampler_views(struct pipe_context *pipe,
+ unsigned num,
+ struct pipe_sampler_view **views)
+{
+ struct svga_context *svga = svga_context(pipe);
+ unsigned flag_1d = 0;
+ unsigned flag_srgb = 0;
+ uint i;
+
+ assert(num <= PIPE_MAX_SAMPLERS);
+
+ /* Check for no-op */
+ if (num == svga->curr.num_sampler_views &&
+ !memcmp(svga->curr.sampler_views, views, num * sizeof(struct pipe_sampler_view *))) {
+ if (0) debug_printf("texture noop\n");
+ return;
+ }
+
+ for (i = 0; i < num; i++) {
+ pipe_sampler_view_reference(&svga->curr.sampler_views[i],
+ views[i]);
+
+ if (!views[i])
+ continue;
+
+ if (views[i]->texture->format == PIPE_FORMAT_B8G8R8A8_SRGB)
+ flag_srgb |= 1 << i;
+
+ if (views[i]->texture->target == PIPE_TEXTURE_1D)
+ flag_1d |= 1 << i;
+ }
+
+ for (i = num; i < svga->curr.num_sampler_views; i++)
+ pipe_sampler_view_reference(&svga->curr.sampler_views[i],
+ NULL);
+
+ svga->curr.num_sampler_views = num;
+ svga->dirty |= SVGA_NEW_TEXTURE_BINDING;
+
+ if (flag_srgb != svga->curr.tex_flags.flag_srgb ||
+ flag_1d != svga->curr.tex_flags.flag_1d)
+ {
+ svga->dirty |= SVGA_NEW_TEXTURE_FLAGS;
+ svga->curr.tex_flags.flag_1d = flag_1d;
+ svga->curr.tex_flags.flag_srgb = flag_srgb;
+ }
+}
+
+
+
+void svga_init_sampler_functions( struct svga_context *svga )
+{
+ svga->pipe.create_sampler_state = svga_create_sampler_state;
+ svga->pipe.bind_fragment_sampler_states = svga_bind_sampler_states;
+ svga->pipe.delete_sampler_state = svga_delete_sampler_state;
+ svga->pipe.set_fragment_sampler_views = svga_set_sampler_views;
+ svga->pipe.create_sampler_view = svga_create_sampler_view;
+ svga->pipe.sampler_view_destroy = svga_sampler_view_destroy;
+}
+
+
+
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