svga: add a helper function to check for typeless format

[mesa.git] / src / gallium / drivers / svga / svga_format.h

diff --git a/src/gallium/drivers/svga/svga_format.h b/src/gallium/drivers/svga/svga_format.h
index 9ea9e05631d3d6446fc2bfb36801cf1a21aa2328..e8af40afb717380035e4c64927eefc822448c0ee 100644 (file)
--- a/src/gallium/drivers/svga/svga_format.h
+++ b/src/gallium/drivers/svga/svga_format.h
@@ -27,6 +27,8 @@
 #define SVGA_FORMAT_H_
 
 
+#include "pipe/p_format.h"
+#include "svga_context.h"
 #include "svga_types.h"
 #include "svga_reg.h"
 #include "svga3d_reg.h"
@@ -35,8 +37,33 @@
 struct svga_screen;
 
 
+/**
+ * Vertex format flags.  These are used to specify that some vertex formats
+ * need extra processing/conversion in the vertex shader.  For example,
+ * setting the W component to 1, or swapping R/B, or converting packed uint
+ * types to signed int/snorm.
+ */
+#define VF_ADJUST_RANGE     (1 << 0)
+#define VF_W_TO_1           (1 << 1)
+#define VF_U_TO_F_CAST      (1 << 2)  /* convert uint to float */
+#define VF_I_TO_F_CAST      (1 << 3)  /* convert sint to float */
+#define VF_BGRA             (1 << 4)  /* swap R/B */
+#define VF_PUINT_TO_SNORM   (1 << 5)  /* 10_10_10_2 to snorm */
+#define VF_PUINT_TO_USCALED (1 << 6)  /* 10_10_10_2 to uscaled */
+#define VF_PUINT_TO_SSCALED (1 << 7)  /* 10_10_10_2 to sscaled */
+
+/**
+ * Texture format flags.
+ */
+#define TF_GEN_MIPS         (1 << 8)  /* supports hw generate mipmap */
+
+void
+svga_translate_vertex_format_vgpu10(enum pipe_format format,
+                                    SVGA3dSurfaceFormat *svga_format,
+                                    unsigned *vf_flags);
+
 enum SVGA3dSurfaceFormat
-svga_translate_format(struct svga_screen *ss,
+svga_translate_format(const struct svga_screen *ss,
                       enum pipe_format format,
                       unsigned bind);
 
@@ -45,5 +72,43 @@ svga_get_format_cap(struct svga_screen *ss,
                     SVGA3dSurfaceFormat format,
                     SVGA3dSurfaceFormatCaps *caps);
 
+void
+svga_format_size(SVGA3dSurfaceFormat format,
+                 unsigned *block_width,
+                 unsigned *block_height,
+                 unsigned *bytes_per_block);
+
+const char *
+svga_format_name(SVGA3dSurfaceFormat format);
+
+boolean
+svga_format_is_integer(SVGA3dSurfaceFormat format);
+
+boolean
+svga_format_support_gen_mips(enum pipe_format format);
+
+enum tgsi_return_type
+svga_get_texture_datatype(enum pipe_format format);
+
+
+// XXX: Move this to svga_context?
+boolean
+svga_has_any_integer_cbufs(const struct svga_context *svga);
+
+
+SVGA3dSurfaceFormat
+svga_typeless_format(SVGA3dSurfaceFormat format);
+
+
+SVGA3dSurfaceFormat
+svga_sampler_format(SVGA3dSurfaceFormat format);
+
+
+bool
+svga_format_is_uncompressed_snorm(SVGA3dSurfaceFormat format);
+
+
+bool
+svga_format_is_typeless(SVGA3dSurfaceFormat format);
 
 #endif /* SVGA_FORMAT_H_ */