#include "util/u_memory.h"
+#include "util/u_math.h"
+
#include "pipe/p_context.h"
#include "pipe/p_state.h"
+#include "util/u_inlines.h"
#include "brw_context.h"
#include "brw_defines.h"
-#include "brw_debug.h"
-static void *brw_create_sampler_state( struct pipe_context *pipe,
- const struct pipe_sampler_state *templ )
+/* The brw (and related graphics cores) do not support GL_CLAMP. The
+ * Intel drivers for "other operating systems" implement GL_CLAMP as
+ * GL_CLAMP_TO_EDGE, so the same is done here.
+ */
+static GLuint translate_wrap_mode( unsigned wrap )
+{
+ switch( wrap ) {
+ case PIPE_TEX_WRAP_REPEAT:
+ return BRW_TEXCOORDMODE_WRAP;
+
+ case PIPE_TEX_WRAP_CLAMP:
+ case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
+ return BRW_TEXCOORDMODE_CLAMP;
+
+ case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
+ return BRW_TEXCOORDMODE_CLAMP_BORDER;
+
+ case PIPE_TEX_WRAP_MIRROR_REPEAT:
+ return BRW_TEXCOORDMODE_MIRROR;
+
+ case PIPE_TEX_WRAP_MIRROR_CLAMP:
+ case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
+ case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
+ return BRW_TEXCOORDMODE_MIRROR_ONCE;
+
+ default:
+ return BRW_TEXCOORDMODE_WRAP;
+ }
+}
+
+static GLuint translate_img_filter( unsigned filter )
+{
+ switch (filter) {
+ case PIPE_TEX_FILTER_NEAREST:
+ return BRW_MAPFILTER_NEAREST;
+ case PIPE_TEX_FILTER_LINEAR:
+ return BRW_MAPFILTER_LINEAR;
+ default:
+ assert(0);
+ return BRW_MAPFILTER_NEAREST;
+ }
+}
+
+static GLuint translate_mip_filter( unsigned filter )
+{
+ switch (filter) {
+ case PIPE_TEX_MIPFILTER_NONE:
+ return BRW_MIPFILTER_NONE;
+ case PIPE_TEX_MIPFILTER_NEAREST:
+ return BRW_MIPFILTER_NEAREST;
+ case PIPE_TEX_MIPFILTER_LINEAR:
+ return BRW_MIPFILTER_LINEAR;
+ default:
+ assert(0);
+ return BRW_MIPFILTER_NONE;
+ }
+}
+
+/* XXX: not sure why there are special translations for the shadow tex
+ * compare functions. In particular ALWAYS is translated to NEVER.
+ * Is this a hardware issue? Does i965 really suffer from this?
+ */
+static GLuint translate_shadow_compare_func( unsigned func )
+{
+ switch (func) {
+ case PIPE_FUNC_NEVER:
+ return BRW_COMPAREFUNCTION_ALWAYS;
+ case PIPE_FUNC_LESS:
+ return BRW_COMPAREFUNCTION_LEQUAL;
+ case PIPE_FUNC_LEQUAL:
+ return BRW_COMPAREFUNCTION_LESS;
+ case PIPE_FUNC_GREATER:
+ return BRW_COMPAREFUNCTION_GEQUAL;
+ case PIPE_FUNC_GEQUAL:
+ return BRW_COMPAREFUNCTION_GREATER;
+ case PIPE_FUNC_NOTEQUAL:
+ return BRW_COMPAREFUNCTION_EQUAL;
+ case PIPE_FUNC_EQUAL:
+ return BRW_COMPAREFUNCTION_NOTEQUAL;
+ case PIPE_FUNC_ALWAYS:
+ return BRW_COMPAREFUNCTION_NEVER;
+ default:
+ assert(0);
+ return BRW_COMPAREFUNCTION_NEVER;
+ }
+}
+
+
+
+
+static void *
+brw_create_sampler_state( struct pipe_context *pipe,
+ const struct pipe_sampler_state *template )
{
- struct brw_sampler_state *sampler = CALLOC_STRUCT(brw_sampler_state);
+ struct brw_sampler *sampler = CALLOC_STRUCT(brw_sampler);
+
+ sampler->ss0.min_filter = translate_img_filter( template->min_img_filter );
+ sampler->ss0.mag_filter = translate_img_filter( template->mag_img_filter );
+ sampler->ss0.mip_filter = translate_mip_filter( template->min_mip_filter );
+
+
+ /* XXX: anisotropy logic slightly changed:
+ */
+ if (template->max_anisotropy > 1) {
+ sampler->ss0.min_filter = BRW_MAPFILTER_ANISOTROPIC;
+ sampler->ss0.mag_filter = BRW_MAPFILTER_ANISOTROPIC;
+
+ sampler->ss3.max_aniso = MIN2((template->max_anisotropy - 2) / 2,
+ BRW_ANISORATIO_16);
+ }
+
+ sampler->ss1.r_wrap_mode = translate_wrap_mode(template->wrap_r);
+ sampler->ss1.s_wrap_mode = translate_wrap_mode(template->wrap_s);
+ sampler->ss1.t_wrap_mode = translate_wrap_mode(template->wrap_t);
+
+ /* Set LOD bias:
+ */
+ sampler->ss0.lod_bias =
+ util_signed_fixed(CLAMP(template->lod_bias, -16, 15), 6);
+
+
+ sampler->ss0.lod_preclamp = 1; /* OpenGL mode */
+ sampler->ss0.default_color_mode = 0; /* OpenGL/DX10 mode */
+
+ /* Set shadow function:
+ */
+ if (template->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
+
+ /* Shadowing is "enabled" by emitting a particular sampler
+ * message (sample_c). So need to recompile WM program when
+ * shadow comparison is enabled on each/any texture unit.
+ */
+ sampler->ss0.shadow_function =
+ translate_shadow_compare_func(template->compare_func);
+ }
+ /* Set BaseMipLevel, MaxLOD, MinLOD:
+ */
+ sampler->ss0.base_level =
+ util_unsigned_fixed(0, 1);
+
+ sampler->ss1.max_lod =
+ util_unsigned_fixed(CLAMP(template->max_lod, 0, 13), 6);
+
+ sampler->ss1.min_lod =
+ util_unsigned_fixed(CLAMP(template->min_lod, 0, 13), 6);
return (void *)sampler;
}
static void brw_bind_sampler_state(struct pipe_context *pipe,
- void *cso)
+ unsigned num, void **sampler)
{
struct brw_context *brw = brw_context(pipe);
- brw->curr.sampler = (const struct brw_sampler_state *)cso;
- brw->state.dirty.mesa |= PIPE_NEW_SAMPLER;
+ int i;
+
+ for (i = 0; i < num; i++)
+ brw->curr.sampler[i] = sampler[i];
+
+ for (i = num; i < brw->curr.num_samplers; i++)
+ brw->curr.sampler[i] = NULL;
+
+ brw->curr.num_samplers = num;
+ brw->state.dirty.mesa |= PIPE_NEW_SAMPLERS;
}
static void brw_delete_sampler_state(struct pipe_context *pipe,
void *cso)
{
- struct brw_context *brw = brw_context(pipe);
FREE(cso);
}
-static void brw_set_sampler_textures(struct pipe_context *pipe,
- unsigned num_textures,
- struct pipe_texture **tex)
+static void brw_set_fragment_sampler_views(struct pipe_context *pipe,
+ unsigned num,
+ struct pipe_sampler_view **views)
{
struct brw_context *brw = brw_context(pipe);
+ int i;
+
+ for (i = 0; i < num; i++)
+ pipe_sampler_view_reference(&brw->curr.fragment_sampler_views[i], views[i]);
+
+ for (i = num; i < brw->curr.num_fragment_sampler_views; i++)
+ pipe_sampler_view_reference(&brw->curr.fragment_sampler_views[i], NULL);
+ brw->curr.num_fragment_sampler_views = num;
brw->state.dirty.mesa |= PIPE_NEW_BOUND_TEXTURES;
}
+static void brw_set_vertex_sampler_views(struct pipe_context *pipe,
+ unsigned num,
+ struct pipe_sampler_view **views)
+{
+}
-void brw_sampler_init( struct brw_context *brw )
+static void brw_bind_vertex_sampler_state(struct pipe_context *pipe,
+ unsigned num, void **sampler)
+{
+}
+
+
+static struct pipe_sampler_view *
+brw_create_sampler_view(struct pipe_context *pipe,
+ struct pipe_texture *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_texture_reference(&view->texture, texture);
+ view->context = pipe;
+ }
+
+ return view;
+}
+
+
+static void
+brw_sampler_view_destroy(struct pipe_context *pipe,
+ struct pipe_sampler_view *view)
+{
+ pipe_texture_reference(&view->texture, NULL);
+ FREE(view);
+}
+
+
+void brw_pipe_sampler_init( struct brw_context *brw )
{
- brw->base.set_sampler_textures = brw_set_sampler_textures;
brw->base.create_sampler_state = brw_create_sampler_state;
- brw->base.bind_sampler_state = brw_bind_sampler_state;
- brw->base.destroy_sampler_state = brw_destroy_sampler_state;
+ brw->base.delete_sampler_state = brw_delete_sampler_state;
+
+ brw->base.set_fragment_sampler_views = brw_set_fragment_sampler_views;
+ brw->base.bind_fragment_sampler_states = brw_bind_sampler_state;
+
+ brw->base.set_vertex_sampler_views = brw_set_vertex_sampler_views;
+ brw->base.bind_vertex_sampler_states = brw_bind_vertex_sampler_state;
+
+ brw->base.create_sampler_view = brw_create_sampler_view;
+ brw->base.sampler_view_destroy = brw_sampler_view_destroy;
+}
+void brw_pipe_sampler_cleanup( struct brw_context *brw )
+{
}
projects / mesa.git / blobdiff