r600g: remove bpt and start using pitch_in_bytes/pixels.

this mirror changes in r300g, bpt is kinda useless when it comes to some
of the non-simple texture formats.

4 files changed, 20 insertions, 12 deletions

diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
index 54d2233467a..49a888abe35 100644
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -451,7 +451,7 @@ static struct pipe_sampler_view *evergreen_create_sampler_view(struct pipe_conte
 		bo[0] = rbuffer->bo;
 		bo[1] = rbuffer->bo;
 	}
-	pitch = align(tmp->pitch_in_bytes[0] / tmp->bpt, 8);
+	pitch = align(tmp->pitch_in_pixels[0], 8);
 
 	/* FIXME properly handle first level != 0 */
 	r600_pipe_state_add_reg(rstate, R_030000_RESOURCE0_WORD0,
@@ -740,8 +740,8 @@ static void evergreen_cb(struct r600_pipe_context *rctx, struct r600_pipe_state
 	bo[1] = rbuffer->bo;
 	bo[2] = rbuffer->bo;
 
-	pitch = (rtex->pitch_in_bytes[level] / rtex->bpt) / 8 - 1;
-	slice = (rtex->pitch_in_bytes[level] / rtex->bpt) * state->cbufs[cb]->height / 64 - 1;
+	pitch = rtex->pitch_in_pixels[level] / 8 - 1;
+	slice = rtex->pitch_in_pixels[level] * state->cbufs[cb]->height / 64 - 1;
 	ntype = 0;
 	desc = util_format_description(rtex->resource.base.b.format);
 	if (desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB)
@@ -802,8 +802,8 @@ static void evergreen_db(struct r600_pipe_context *rctx, struct r600_pipe_state
 	rbuffer = &rtex->resource;
 
 	level = state->zsbuf->level;
-	pitch = (rtex->pitch_in_bytes[level] / rtex->bpt) / 8 - 1;
-	slice = (rtex->pitch_in_bytes[level] / rtex->bpt) * state->zsbuf->height / 64 - 1;
+	pitch = rtex->pitch_in_pixels[level] / 8 - 1;
+	slice = rtex->pitch_in_pixels[level] * state->zsbuf->height / 64 - 1;
 	format = r600_translate_dbformat(state->zsbuf->texture->format);
 	stencil_format = r600_translate_stencilformat(state->zsbuf->texture->format);
 
diff --git a/src/gallium/drivers/r600/r600_resource.h b/src/gallium/drivers/r600/r600_resource.h
index 04b31ddf899..2d7495e0fbb 100644
--- a/src/gallium/drivers/r600/r600_resource.h
+++ b/src/gallium/drivers/r600/r600_resource.h
@@ -51,9 +51,9 @@ struct r600_resource_texture {
 	struct r600_resource		resource;
 	unsigned long			offset[PIPE_MAX_TEXTURE_LEVELS];
 	unsigned long			pitch_in_bytes[PIPE_MAX_TEXTURE_LEVELS];
+	unsigned long			pitch_in_pixels[PIPE_MAX_TEXTURE_LEVELS];
 	unsigned long			layer_size[PIPE_MAX_TEXTURE_LEVELS];
 	unsigned long			pitch_override;
-	unsigned long			bpt;
 	unsigned long			size;
 	unsigned			tiled;
 	unsigned			array_mode;
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index 8c8e7986522..7b0aaef770f 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -653,7 +653,7 @@ static struct pipe_sampler_view *r600_create_sampler_view(struct pipe_context *c
 		bo[0] = rbuffer->bo;
 		bo[1] = rbuffer->bo;
 	}
-	pitch = align(tmp->pitch_in_bytes[0] / tmp->bpt, 8);
+	pitch = align(tmp->pitch_in_pixels[0], 8);
 
 	/* FIXME properly handle first level != 0 */
 	r600_pipe_state_add_reg(rstate, R_038000_RESOURCE0_WORD0,
@@ -943,8 +943,8 @@ static void r600_cb(struct r600_pipe_context *rctx, struct r600_pipe_state *rsta
 	bo[1] = rbuffer->bo;
 	bo[2] = rbuffer->bo;
 
-	pitch = (rtex->pitch_in_bytes[level] / rtex->bpt) / 8 - 1;
-	slice = (rtex->pitch_in_bytes[level] / rtex->bpt) * state->cbufs[cb]->height / 64 - 1;
+	pitch = rtex->pitch_in_pixels[level] / 8 - 1;
+	slice = rtex->pitch_in_pixels[level] * state->cbufs[cb]->height / 64 - 1;
 	ntype = 0;
 	desc = util_format_description(rtex->resource.base.b.format);
 	if (desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB)
@@ -1003,8 +1003,8 @@ static void r600_db(struct r600_pipe_context *rctx, struct r600_pipe_state *rsta
 	rbuffer = &rtex->resource;
 
 	level = state->zsbuf->level;
-	pitch = (rtex->pitch_in_bytes[level] / rtex->bpt) / 8 - 1;
-	slice = (rtex->pitch_in_bytes[level] / rtex->bpt) * state->zsbuf->height / 64 - 1;
+	pitch = rtex->pitch_in_pixels[level] / 8 - 1;
+	slice = rtex->pitch_in_pixels[level] * state->zsbuf->height / 64 - 1;
 	format = r600_translate_dbformat(state->zsbuf->texture->format);
 
 	r600_pipe_state_add_reg(rstate, R_02800C_DB_DEPTH_BASE,
diff --git a/src/gallium/drivers/r600/r600_texture.c b/src/gallium/drivers/r600/r600_texture.c
index 5bdfd499397..d1339f69e73 100644
--- a/src/gallium/drivers/r600/r600_texture.c
+++ b/src/gallium/drivers/r600/r600_texture.c
@@ -125,6 +125,14 @@ static unsigned r600_texture_get_nblocksy(struct pipe_screen *screen,
 	return util_format_get_nblocksy(ptex->format, height);
 }
 
+/* Get a width in pixels from a stride in bytes. */
+static unsigned pitch_to_width(enum pipe_format format,
+                                unsigned pitch_in_bytes)
+{
+    return (pitch_in_bytes / util_format_get_blocksize(format)) *
+            util_format_get_blockwidth(format);
+}
+
 static void r600_setup_miptree(struct pipe_screen *screen,
 			       struct r600_resource_texture *rtex)
 {
@@ -134,7 +142,6 @@ static void r600_setup_miptree(struct pipe_screen *screen,
 	unsigned long pitch, size, layer_size, i, offset;
 	unsigned nblocksy;
 
-	rtex->bpt = util_format_get_blocksize(ptex->format);
 	for (i = 0, offset = 0; i <= ptex->last_level; i++) {
 		pitch = r600_texture_get_stride(screen, rtex, i);
 		nblocksy = r600_texture_get_nblocksy(screen, rtex, i);
@@ -152,6 +159,7 @@ static void r600_setup_miptree(struct pipe_screen *screen,
 		rtex->offset[i] = offset;
 		rtex->layer_size[i] = layer_size;
 		rtex->pitch_in_bytes[i] = pitch;
+		rtex->pitch_in_pixels[i] = pitch_to_width(ptex->format, pitch);
 		offset += size;
 	}
 	rtex->size = offset;