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authorFrancisco Jerez <[email protected]>2010-10-29 18:16:08 +0200
committerFrancisco Jerez <[email protected]>2010-10-31 02:02:33 +0100
commit088145f95086aa640e20b5436854bb68ca3e4934 (patch)
tree90ecb8cd51149d9d8ff633a1fd289cf086c174d5 /src/mesa
parentf67fa5229331f6d4920175dd0d6e1e6a2c69c060 (diff)
dri/nouveau: Pipeline glTexSubImage texture transfers.
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/drivers/dri/nouveau/nouveau_texture.c83
-rw-r--r--src/mesa/drivers/dri/nouveau/nouveau_texture.h4
2 files changed, 68 insertions, 19 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_texture.c b/src/mesa/drivers/dri/nouveau/nouveau_texture.c
index 9254a9e7bec..060c2c5bcc0 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_texture.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_texture.c
@@ -79,26 +79,65 @@ nouveau_teximage_free(struct gl_context *ctx, struct gl_texture_image *ti)
}
static void
-nouveau_teximage_map(struct gl_context *ctx, struct gl_texture_image *ti)
+nouveau_teximage_map(struct gl_context *ctx, struct gl_texture_image *ti,
+ int access, int x, int y, int w, int h)
{
- struct nouveau_surface *s = &to_nouveau_teximage(ti)->surface;
- int ret;
+ struct nouveau_teximage *nti = to_nouveau_teximage(ti);
+ struct nouveau_surface *s = &nti->surface;
+ struct nouveau_surface *st = &nti->transfer.surface;
if (s->bo) {
- ret = nouveau_bo_map(s->bo, NOUVEAU_BO_RDWR);
- assert(!ret);
-
- ti->Data = s->bo->map;
+ if (!(access & GL_MAP_READ_BIT) &&
+ nouveau_bo_pending(s->bo)) {
+ /*
+ * Heuristic: use a bounce buffer to pipeline
+ * teximage transfers.
+ */
+ st->layout = LINEAR;
+ st->format = s->format;
+ st->cpp = s->cpp;
+ st->width = w;
+ st->height = h;
+ st->pitch = s->pitch;
+ nti->transfer.x = x;
+ nti->transfer.y = y;
+
+ ti->Data = nouveau_get_scratch(ctx, st->pitch * h,
+ &st->bo, &st->offset);
+
+ } else {
+ int ret, flags = 0;
+
+ if (access & GL_MAP_READ_BIT)
+ flags |= NOUVEAU_BO_RD;
+ if (access & GL_MAP_WRITE_BIT)
+ flags |= NOUVEAU_BO_WR;
+
+ ret = nouveau_bo_map(s->bo, flags);
+ assert(!ret);
+
+ ti->Data = s->bo->map + y * s->pitch + x * s->cpp;
+ }
}
}
static void
nouveau_teximage_unmap(struct gl_context *ctx, struct gl_texture_image *ti)
{
- struct nouveau_surface *s = &to_nouveau_teximage(ti)->surface;
+ struct nouveau_teximage *nti = to_nouveau_teximage(ti);
+ struct nouveau_surface *s = &nti->surface;
+ struct nouveau_surface *st = &nti->transfer.surface;
- if (s->bo)
+ if (st->bo) {
+ context_drv(ctx)->surface_copy(ctx, s, st, nti->transfer.x,
+ nti->transfer.y, 0, 0,
+ st->width, st->height);
+ nouveau_surface_ref(NULL, st);
+
+ } else if (s->bo) {
nouveau_bo_unmap(s->bo);
+ }
+
ti->Data = NULL;
}
@@ -361,7 +400,8 @@ nouveau_teximage(struct gl_context *ctx, GLint dims, GLenum target, GLint level,
"glTexImage");
if (pixels) {
/* Store the pixel data. */
- nouveau_teximage_map(ctx, ti);
+ nouveau_teximage_map(ctx, ti, GL_MAP_WRITE_BIT,
+ 0, 0, width, height);
ret = _mesa_texstore(ctx, dims, ti->_BaseFormat,
ti->TexFormat, ti->Data,
@@ -448,13 +488,13 @@ nouveau_texsubimage(struct gl_context *ctx, GLint dims, GLenum target, GLint lev
format, type, pixels, packing,
"glTexSubImage");
if (pixels) {
- nouveau_teximage_map(ctx, ti);
+ nouveau_teximage_map(ctx, ti, GL_MAP_WRITE_BIT,
+ xoffset, yoffset, width, height);
ret = _mesa_texstore(ctx, 3, ti->_BaseFormat, ti->TexFormat,
- ti->Data, xoffset, yoffset, zoffset,
- s->pitch, ti->ImageOffsets,
- width, height, depth, format, type,
- pixels, packing);
+ ti->Data, 0, 0, 0, s->pitch,
+ ti->ImageOffsets, width, height, depth,
+ format, type, pixels, packing);
assert(ret);
nouveau_teximage_unmap(ctx, ti);
@@ -513,7 +553,8 @@ nouveau_get_teximage(struct gl_context *ctx, GLenum target, GLint level,
struct gl_texture_object *t,
struct gl_texture_image *ti)
{
- nouveau_teximage_map(ctx, ti);
+ nouveau_teximage_map(ctx, ti, GL_MAP_READ_BIT,
+ 0, 0, ti->Width, ti->Height);
_mesa_get_teximage(ctx, target, level, format, type, pixels,
t, ti);
nouveau_teximage_unmap(ctx, ti);
@@ -584,8 +625,11 @@ nouveau_texture_map(struct gl_context *ctx, struct gl_texture_object *t)
int i;
for (i = t->BaseLevel; i < t->_MaxLevel; i++) {
- if (t->Image[0][i])
- nouveau_teximage_map(ctx, t->Image[0][i]);
+ struct gl_texture_image *ti = t->Image[0][i];
+
+ if (ti)
+ nouveau_teximage_map(ctx, ti, GL_MAP_READ_BIT,
+ 0, 0, ti->Width, ti->Height);
}
}
@@ -635,7 +679,8 @@ nouveau_generate_mipmap(struct gl_context *ctx, GLenum target,
if (_mesa_meta_check_generate_mipmap_fallback(ctx, target, t)) {
struct gl_texture_image *base = t->Image[0][t->BaseLevel];
- nouveau_teximage_map(ctx, base);
+ nouveau_teximage_map(ctx, base, GL_MAP_READ_BIT,
+ 0, 0, base->Width, base->Height);
_mesa_generate_mipmap(ctx, target, t);
nouveau_teximage_unmap(ctx, base);
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_texture.h b/src/mesa/drivers/dri/nouveau/nouveau_texture.h
index fc170215f35..56e61c7337b 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_texture.h
+++ b/src/mesa/drivers/dri/nouveau/nouveau_texture.h
@@ -30,6 +30,10 @@
struct nouveau_teximage {
struct gl_texture_image base;
struct nouveau_surface surface;
+ struct {
+ struct nouveau_surface surface;
+ int x, y;
+ } transfer;
};
#define to_nouveau_teximage(x) ((struct nouveau_teximage *)(x))