#include "main/macros.h"
+#include "program/prog_instruction.h"
#include "st_context.h"
#include "st_atom.h"
#include "st_texture.h"
+#include "st_format.h"
#include "st_cb_texture.h"
#include "pipe/p_context.h"
+#include "util/u_format.h"
#include "util/u_inlines.h"
#include "cso_cache/cso_context.h"
+/**
+ * Combine depth texture mode with "swizzle" so that depth mode swizzling
+ * takes place before texture swizzling, and return the resulting swizzle.
+ * If the format is not a depth format, return "swizzle" unchanged.
+ *
+ * \param format PIPE_FORMAT_*.
+ * \param swizzle Texture swizzle, a bitmask computed using MAKE_SWIZZLE4.
+ * \param depthmode One of GL_LUMINANCE, GL_INTENSITY, GL_ALPHA, GL_RED.
+ */
+static GLuint apply_depthmode(enum pipe_format format,
+ GLuint swizzle, GLenum depthmode)
+{
+ const struct util_format_description *desc =
+ util_format_description(format);
+ unsigned char swiz[4];
+ unsigned i;
+
+ if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS ||
+ desc->swizzle[0] == UTIL_FORMAT_SWIZZLE_NONE) {
+ /* Not a depth format. */
+ return swizzle;
+ }
+
+ for (i = 0; i < 4; i++)
+ swiz[i] = GET_SWZ(swizzle, i);
+
+ switch (depthmode) {
+ case GL_LUMINANCE:
+ /* Rewrite reads from W to ONE, and reads from XYZ to XXX. */
+ for (i = 0; i < 4; i++)
+ if (swiz[i] == SWIZZLE_W)
+ swiz[i] = SWIZZLE_ONE;
+ else if (swiz[i] < SWIZZLE_W)
+ swiz[i] = SWIZZLE_X;
+ break;
+
+ case GL_INTENSITY:
+ /* Rewrite reads from XYZW to XXXX. */
+ for (i = 0; i < 4; i++)
+ if (swiz[i] <= SWIZZLE_W)
+ swiz[i] = SWIZZLE_X;
+ break;
+
+ case GL_ALPHA:
+ /* Rewrite reads from W to X, and reads from XYZ to 000. */
+ for (i = 0; i < 4; i++)
+ if (swiz[i] == SWIZZLE_W)
+ swiz[i] = SWIZZLE_X;
+ else if (swiz[i] < SWIZZLE_W)
+ swiz[i] = SWIZZLE_ZERO;
+ break;
+ case GL_RED:
+ /* Rewrite reads W to 1, XYZ to X00 */
+ for (i = 0; i < 4; i++)
+ if (swiz[i] == SWIZZLE_W)
+ swiz[i] = SWIZZLE_ONE;
+ else if (swiz[i] == SWIZZLE_Y || swiz[i] == SWIZZLE_Z)
+ swiz[i] = SWIZZLE_ZERO;
+ break;
+ }
+
+ return MAKE_SWIZZLE4(swiz[0], swiz[1], swiz[2], swiz[3]);
+}
+
+/**
+ * Return TRUE if the swizzling described by "swizzle" and
+ * "depthmode" (for depth textures only) is different from the swizzling
+ * set in the given sampler view.
+ *
+ * \param sv A sampler view.
+ * \param swizzle Texture swizzle, a bitmask computed using MAKE_SWIZZLE4.
+ * \param depthmode One of GL_LUMINANCE, GL_INTENSITY, GL_ALPHA.
+ */
+static boolean check_sampler_swizzle(struct pipe_sampler_view *sv,
+ GLuint swizzle, GLenum depthmode)
+{
+ swizzle = apply_depthmode(sv->texture->format, swizzle, depthmode);
+
+ if ((sv->swizzle_r != GET_SWZ(swizzle, 0)) ||
+ (sv->swizzle_g != GET_SWZ(swizzle, 1)) ||
+ (sv->swizzle_b != GET_SWZ(swizzle, 2)) ||
+ (sv->swizzle_a != GET_SWZ(swizzle, 3)))
+ return true;
+ return false;
+}
+
+static INLINE struct pipe_sampler_view *
+st_create_texture_sampler_view_from_stobj(struct pipe_context *pipe,
+ struct st_texture_object *stObj,
+ enum pipe_format format)
+
+{
+ struct pipe_sampler_view templ;
+ GLuint swizzle = apply_depthmode(stObj->pt->format,
+ stObj->base._Swizzle,
+ stObj->base.DepthMode);
+
+ u_sampler_view_default_template(&templ,
+ stObj->pt,
+ format);
+
+ if (swizzle != SWIZZLE_NOOP) {
+ templ.swizzle_r = GET_SWZ(swizzle, 0);
+ templ.swizzle_g = GET_SWZ(swizzle, 1);
+ templ.swizzle_b = GET_SWZ(swizzle, 2);
+ templ.swizzle_a = GET_SWZ(swizzle, 3);
+ }
+
+ return pipe->create_sampler_view(pipe, stObj->pt, &templ);
+}
+
+
+static INLINE struct pipe_sampler_view *
+st_get_texture_sampler_view_from_stobj(struct st_texture_object *stObj,
+ struct pipe_context *pipe,
+ enum pipe_format format)
+
+{
+ if (!stObj || !stObj->pt) {
+ return NULL;
+ }
+
+ if (!stObj->sampler_view) {
+ stObj->sampler_view = st_create_texture_sampler_view_from_stobj(pipe, stObj, format);
+ }
+
+ return stObj->sampler_view;
+}
static void
update_textures(struct st_context *st)
/* loop over sampler units (aka tex image units) */
for (su = 0; su < st->ctx->Const.MaxTextureImageUnits; su++) {
struct pipe_sampler_view *sampler_view = NULL;
-
+ enum pipe_format st_view_format;
if (samplersUsed & (1 << su)) {
struct gl_texture_object *texObj;
struct st_texture_object *stObj;
- GLboolean flush, retval;
+ GLboolean retval;
GLuint texUnit;
if (fprog->Base.SamplersUsed & (1 << su))
}
stObj = st_texture_object(texObj);
- retval = st_finalize_texture(st->ctx, st->pipe, texObj, &flush);
+ retval = st_finalize_texture(st->ctx, st->pipe, texObj);
if (!retval) {
/* out of mem */
continue;
}
+ st_view_format = stObj->pt->format;
+ {
+ struct st_texture_image *firstImage;
+ enum pipe_format firstImageFormat;
+ firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]);
+
+ firstImageFormat = st_mesa_format_to_pipe_format(firstImage->base.TexFormat);
+ if (firstImageFormat != stObj->pt->format)
+ st_view_format = firstImageFormat;
+
+ }
st->state.num_textures = su + 1;
- sampler_view = st_get_texture_sampler_view(stObj, pipe);
- }
+ /* if sampler view has changed dereference it */
+ if (stObj->sampler_view)
+ if (check_sampler_swizzle(stObj->sampler_view,
+ stObj->base._Swizzle,
+ stObj->base.DepthMode) ||
+ (st_view_format != stObj->sampler_view->format))
+ pipe_sampler_view_reference(&stObj->sampler_view, NULL);
- /*
- if (pt) {
- printf("%s su=%u non-null\n", __FUNCTION__, su);
+ sampler_view = st_get_texture_sampler_view_from_stobj(stObj, pipe, st_view_format);
}
- else {
- printf("%s su=%u null\n", __FUNCTION__, su);
- }
- */
-
pipe_sampler_view_reference(&st->state.sampler_views[su], sampler_view);
}
const GLuint texUnit = fprog->Base.SamplerUnits[su];
struct gl_texture_object *texObj
= st->ctx->Texture.Unit[texUnit]._Current;
- struct st_texture_object *stObj = st_texture_object(texObj);
if (texObj) {
- GLboolean flush, retval;
+ GLboolean retval;
- retval = st_finalize_texture(st->ctx, st->pipe, texObj, &flush);
+ retval = st_finalize_texture(st->ctx, st->pipe, texObj);
if (!retval) {
/* out of mem */
st->missing_textures = GL_TRUE;
continue;
}
-
- stObj->teximage_realloc = TRUE;
}
}
}
projects / mesa.git / blobdiff