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Diffstat (limited to 'src/gallium/drivers/r300/r300_texture.h')
-rw-r--r--src/gallium/drivers/r300/r300_texture.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_texture.h b/src/gallium/drivers/r300/r300_texture.h
index 98fb5c9a08f..e2429c07384 100644
--- a/src/gallium/drivers/r300/r300_texture.h
+++ b/src/gallium/drivers/r300/r300_texture.h
@@ -32,6 +32,27 @@
void r300_init_screen_texture_functions(struct pipe_screen* screen);
+/* Note the signature of R300_EASY_TX_FORMAT(A, R, G, B, FORMAT)... */
+static INLINE uint32_t r300_translate_texformat(enum pipe_format format)
+{
+ switch (format) {
+ /* X8 */
+ case PIPE_FORMAT_I8_UNORM:
+ return R300_EASY_TX_FORMAT(X, X, X, X, X8);
+ /* W8Z8Y8X8 */
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
+ return R300_EASY_TX_FORMAT(X, Y, Z, W, W8Z8Y8X8);
+ case PIPE_FORMAT_R8G8B8A8_UNORM:
+ return R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8);
+ default:
+ debug_printf("r300: Implementation error: "
+ "Got unsupported texture format %s in %s\n",
+ pf_name(format), __FUNCTION__);
+ break;
+ }
+ return 0;
+}
+
#ifndef R300_WINSYS_H
boolean r300_get_texture_buffer(struct pipe_texture* texture,