--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+ /*
+ * Authors:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include "pipe/p_util.h"
+#include "pipe/p_state.h"
+#include "translate.h"
+
+
+#define DRAW_DBG 0
+
+typedef void (*fetch_func)(const void *ptr, float *attrib);
+typedef void (*emit_func)(const float *attrib, void *ptr);
+
+
+
+struct translate_generic {
+ struct translate translate;
+
+ struct {
+ fetch_func fetch;
+ unsigned buffer;
+ unsigned input_offset;
+
+ emit_func emit;
+ unsigned output_offset;
+
+ char *input_ptr;
+ unsigned input_stride;
+
+ } attrib[PIPE_MAX_ATTRIBS];
+
+ unsigned nr_attrib;
+ unsigned output_stride;
+};
+
+
+static struct translate_generic *translate_generic( struct translate *translate )
+{
+ return (struct translate_generic *)translate;
+}
+
+/**
+ * Fetch a float[4] vertex attribute from memory, doing format/type
+ * conversion as needed.
+ *
+ * This is probably needed/dupliocated elsewhere, eg format
+ * conversion, texture sampling etc.
+ */
+#define ATTRIB( NAME, SZ, TYPE, FROM, TO ) \
+static void \
+fetch_##NAME(const void *ptr, float *attrib) \
+{ \
+ const float defaults[4] = { 0,0,0,1 }; \
+ int i; \
+ \
+ for (i = 0; i < SZ; i++) { \
+ attrib[i] = FROM(i); \
+ } \
+ \
+ for (; i < 4; i++) { \
+ attrib[i] = defaults[i]; \
+ } \
+} \
+ \
+static void \
+emit_##NAME(const float *attrib, void *ptr) \
+{ \
+ unsigned i; \
+ TYPE *out = (TYPE *)ptr; \
+ \
+ for (i = 0; i < SZ; i++) { \
+ out[i] = TO(attrib[i]); \
+ } \
+}
+
+
+#define FROM_64_FLOAT(i) ((float) ((double *) ptr)[i])
+#define FROM_32_FLOAT(i) (((float *) ptr)[i])
+
+#define FROM_8_USCALED(i) ((float) ((unsigned char *) ptr)[i])
+#define FROM_16_USCALED(i) ((float) ((unsigned short *) ptr)[i])
+#define FROM_32_USCALED(i) ((float) ((unsigned int *) ptr)[i])
+
+#define FROM_8_SSCALED(i) ((float) ((char *) ptr)[i])
+#define FROM_16_SSCALED(i) ((float) ((short *) ptr)[i])
+#define FROM_32_SSCALED(i) ((float) ((int *) ptr)[i])
+
+#define FROM_8_UNORM(i) ((float) ((unsigned char *) ptr)[i] / 255.0f)
+#define FROM_16_UNORM(i) ((float) ((unsigned short *) ptr)[i] / 65535.0f)
+#define FROM_32_UNORM(i) ((float) ((unsigned int *) ptr)[i] / 4294967295.0f)
+
+#define FROM_8_SNORM(i) ((float) ((char *) ptr)[i] / 127.0f)
+#define FROM_16_SNORM(i) ((float) ((short *) ptr)[i] / 32767.0f)
+#define FROM_32_SNORM(i) ((float) ((int *) ptr)[i] / 2147483647.0f)
+
+#define TO_64_FLOAT(f) ((double) f)
+#define TO_32_FLOAT(f) (f)
+
+#define TO_8_USCALED(f) ((unsigned char) f)
+#define TO_16_USCALED(f) ((unsigned short) f)
+#define TO_32_USCALED(f) ((unsigned int) f)
+
+#define TO_8_SSCALED(f) ((char) f)
+#define TO_16_SSCALED(f) ((short) f)
+#define TO_32_SSCALED(f) ((int) f)
+
+#define TO_8_UNORM(f) ((unsigned char) (f * 255.0f))
+#define TO_16_UNORM(f) ((unsigned short) (f * 65535.0f))
+#define TO_32_UNORM(f) ((unsigned int) (f * 4294967295.0f))
+
+#define TO_8_SNORM(f) ((char) (f * 127.0f))
+#define TO_16_SNORM(f) ((short) (f * 32767.0f))
+#define TO_32_SNORM(f) ((int) (f * 2147483647.0f))
+
+
+
+ATTRIB( R64G64B64A64_FLOAT, 4, double, FROM_64_FLOAT, TO_64_FLOAT )
+ATTRIB( R64G64B64_FLOAT, 3, double, FROM_64_FLOAT, TO_64_FLOAT )
+ATTRIB( R64G64_FLOAT, 2, double, FROM_64_FLOAT, TO_64_FLOAT )
+ATTRIB( R64_FLOAT, 1, double, FROM_64_FLOAT, TO_64_FLOAT )
+
+ATTRIB( R32G32B32A32_FLOAT, 4, float, FROM_32_FLOAT, TO_32_FLOAT )
+ATTRIB( R32G32B32_FLOAT, 3, float, FROM_32_FLOAT, TO_32_FLOAT )
+ATTRIB( R32G32_FLOAT, 2, float, FROM_32_FLOAT, TO_32_FLOAT )
+ATTRIB( R32_FLOAT, 1, float, FROM_32_FLOAT, TO_32_FLOAT )
+
+ATTRIB( R32G32B32A32_USCALED, 4, unsigned, FROM_32_USCALED, TO_32_USCALED )
+ATTRIB( R32G32B32_USCALED, 3, unsigned, FROM_32_USCALED, TO_32_USCALED )
+ATTRIB( R32G32_USCALED, 2, unsigned, FROM_32_USCALED, TO_32_USCALED )
+ATTRIB( R32_USCALED, 1, unsigned, FROM_32_USCALED, TO_32_USCALED )
+
+ATTRIB( R32G32B32A32_SSCALED, 4, int, FROM_32_SSCALED, TO_32_SSCALED )
+ATTRIB( R32G32B32_SSCALED, 3, int, FROM_32_SSCALED, TO_32_SSCALED )
+ATTRIB( R32G32_SSCALED, 2, int, FROM_32_SSCALED, TO_32_SSCALED )
+ATTRIB( R32_SSCALED, 1, int, FROM_32_SSCALED, TO_32_SSCALED )
+
+ATTRIB( R32G32B32A32_UNORM, 4, unsigned, FROM_32_UNORM, TO_32_UNORM )
+ATTRIB( R32G32B32_UNORM, 3, unsigned, FROM_32_UNORM, TO_32_UNORM )
+ATTRIB( R32G32_UNORM, 2, unsigned, FROM_32_UNORM, TO_32_UNORM )
+ATTRIB( R32_UNORM, 1, unsigned, FROM_32_UNORM, TO_32_UNORM )
+
+ATTRIB( R32G32B32A32_SNORM, 4, int, FROM_32_SNORM, TO_32_SNORM )
+ATTRIB( R32G32B32_SNORM, 3, int, FROM_32_SNORM, TO_32_SNORM )
+ATTRIB( R32G32_SNORM, 2, int, FROM_32_SNORM, TO_32_SNORM )
+ATTRIB( R32_SNORM, 1, int, FROM_32_SNORM, TO_32_SNORM )
+
+ATTRIB( R16G16B16A16_USCALED, 4, ushort, FROM_16_USCALED, TO_16_USCALED )
+ATTRIB( R16G16B16_USCALED, 3, ushort, FROM_16_USCALED, TO_16_USCALED )
+ATTRIB( R16G16_USCALED, 2, ushort, FROM_16_USCALED, TO_16_USCALED )
+ATTRIB( R16_USCALED, 1, ushort, FROM_16_USCALED, TO_16_USCALED )
+
+ATTRIB( R16G16B16A16_SSCALED, 4, short, FROM_16_SSCALED, TO_16_SSCALED )
+ATTRIB( R16G16B16_SSCALED, 3, short, FROM_16_SSCALED, TO_16_SSCALED )
+ATTRIB( R16G16_SSCALED, 2, short, FROM_16_SSCALED, TO_16_SSCALED )
+ATTRIB( R16_SSCALED, 1, short, FROM_16_SSCALED, TO_16_SSCALED )
+
+ATTRIB( R16G16B16A16_UNORM, 4, ushort, FROM_16_UNORM, TO_16_UNORM )
+ATTRIB( R16G16B16_UNORM, 3, ushort, FROM_16_UNORM, TO_16_UNORM )
+ATTRIB( R16G16_UNORM, 2, ushort, FROM_16_UNORM, TO_16_UNORM )
+ATTRIB( R16_UNORM, 1, ushort, FROM_16_UNORM, TO_16_UNORM )
+
+ATTRIB( R16G16B16A16_SNORM, 4, short, FROM_16_SNORM, TO_16_SNORM )
+ATTRIB( R16G16B16_SNORM, 3, short, FROM_16_SNORM, TO_16_SNORM )
+ATTRIB( R16G16_SNORM, 2, short, FROM_16_SNORM, TO_16_SNORM )
+ATTRIB( R16_SNORM, 1, short, FROM_16_SNORM, TO_16_SNORM )
+
+ATTRIB( R8G8B8A8_USCALED, 4, ubyte, FROM_8_USCALED, TO_8_USCALED )
+ATTRIB( R8G8B8_USCALED, 3, ubyte, FROM_8_USCALED, TO_8_USCALED )
+ATTRIB( R8G8_USCALED, 2, ubyte, FROM_8_USCALED, TO_8_USCALED )
+ATTRIB( R8_USCALED, 1, ubyte, FROM_8_USCALED, TO_8_USCALED )
+
+ATTRIB( R8G8B8A8_SSCALED, 4, char, FROM_8_SSCALED, TO_8_SSCALED )
+ATTRIB( R8G8B8_SSCALED, 3, char, FROM_8_SSCALED, TO_8_SSCALED )
+ATTRIB( R8G8_SSCALED, 2, char, FROM_8_SSCALED, TO_8_SSCALED )
+ATTRIB( R8_SSCALED, 1, char, FROM_8_SSCALED, TO_8_SSCALED )
+
+ATTRIB( R8G8B8A8_UNORM, 4, ubyte, FROM_8_UNORM, TO_8_UNORM )
+ATTRIB( R8G8B8_UNORM, 3, ubyte, FROM_8_UNORM, TO_8_UNORM )
+ATTRIB( R8G8_UNORM, 2, ubyte, FROM_8_UNORM, TO_8_UNORM )
+ATTRIB( R8_UNORM, 1, ubyte, FROM_8_UNORM, TO_8_UNORM )
+
+ATTRIB( R8G8B8A8_SNORM, 4, char, FROM_8_SNORM, TO_8_SNORM )
+ATTRIB( R8G8B8_SNORM, 3, char, FROM_8_SNORM, TO_8_SNORM )
+ATTRIB( R8G8_SNORM, 2, char, FROM_8_SNORM, TO_8_SNORM )
+ATTRIB( R8_SNORM, 1, char, FROM_8_SNORM, TO_8_SNORM )
+
+ATTRIB( A8R8G8B8_UNORM, 4, ubyte, FROM_8_UNORM, TO_8_UNORM )
+//ATTRIB( R8G8B8A8_UNORM, 4, ubyte, FROM_8_UNORM, TO_8_UNORM )
+
+
+
+static void
+fetch_B8G8R8A8_UNORM(const void *ptr, float *attrib)
+{
+ attrib[2] = FROM_8_UNORM(0);
+ attrib[1] = FROM_8_UNORM(1);
+ attrib[0] = FROM_8_UNORM(2);
+ attrib[3] = FROM_8_UNORM(3);
+}
+
+static void
+emit_B8G8R8A8_UNORM( const float *attrib, void *ptr)
+{
+ ubyte *out = (ubyte *)ptr;
+ out[2] = TO_8_UNORM(out[0]);
+ out[1] = TO_8_UNORM(out[1]);
+ out[0] = TO_8_UNORM(out[2]);
+ out[3] = TO_8_UNORM(out[3]);
+}
+
+static void
+fetch_NULL( const void *ptr, float *attrib )
+{
+ attrib[0] = 0;
+ attrib[1] = 0;
+ attrib[2] = 0;
+ attrib[3] = 1;
+}
+
+static void
+emit_NULL( const float *attrib, void *ptr )
+{
+ /* do nothing is the only sensible option */
+}
+
+static fetch_func get_fetch_func( enum pipe_format format )
+{
+ switch (format) {
+ case PIPE_FORMAT_R64_FLOAT:
+ return fetch_R64_FLOAT;
+ case PIPE_FORMAT_R64G64_FLOAT:
+ return fetch_R64G64_FLOAT;
+ case PIPE_FORMAT_R64G64B64_FLOAT:
+ return fetch_R64G64B64_FLOAT;
+ case PIPE_FORMAT_R64G64B64A64_FLOAT:
+ return fetch_R64G64B64A64_FLOAT;
+
+ case PIPE_FORMAT_R32_FLOAT:
+ return fetch_R32_FLOAT;
+ case PIPE_FORMAT_R32G32_FLOAT:
+ return fetch_R32G32_FLOAT;
+ case PIPE_FORMAT_R32G32B32_FLOAT:
+ return fetch_R32G32B32_FLOAT;
+ case PIPE_FORMAT_R32G32B32A32_FLOAT:
+ return fetch_R32G32B32A32_FLOAT;
+
+ case PIPE_FORMAT_R32_UNORM:
+ return fetch_R32_UNORM;
+ case PIPE_FORMAT_R32G32_UNORM:
+ return fetch_R32G32_UNORM;
+ case PIPE_FORMAT_R32G32B32_UNORM:
+ return fetch_R32G32B32_UNORM;
+ case PIPE_FORMAT_R32G32B32A32_UNORM:
+ return fetch_R32G32B32A32_UNORM;
+
+ case PIPE_FORMAT_R32_USCALED:
+ return fetch_R32_USCALED;
+ case PIPE_FORMAT_R32G32_USCALED:
+ return fetch_R32G32_USCALED;
+ case PIPE_FORMAT_R32G32B32_USCALED:
+ return fetch_R32G32B32_USCALED;
+ case PIPE_FORMAT_R32G32B32A32_USCALED:
+ return fetch_R32G32B32A32_USCALED;
+
+ case PIPE_FORMAT_R32_SNORM:
+ return fetch_R32_SNORM;
+ case PIPE_FORMAT_R32G32_SNORM:
+ return fetch_R32G32_SNORM;
+ case PIPE_FORMAT_R32G32B32_SNORM:
+ return fetch_R32G32B32_SNORM;
+ case PIPE_FORMAT_R32G32B32A32_SNORM:
+ return fetch_R32G32B32A32_SNORM;
+
+ case PIPE_FORMAT_R32_SSCALED:
+ return fetch_R32_SSCALED;
+ case PIPE_FORMAT_R32G32_SSCALED:
+ return fetch_R32G32_SSCALED;
+ case PIPE_FORMAT_R32G32B32_SSCALED:
+ return fetch_R32G32B32_SSCALED;
+ case PIPE_FORMAT_R32G32B32A32_SSCALED:
+ return fetch_R32G32B32A32_SSCALED;
+
+ case PIPE_FORMAT_R16_UNORM:
+ return fetch_R16_UNORM;
+ case PIPE_FORMAT_R16G16_UNORM:
+ return fetch_R16G16_UNORM;
+ case PIPE_FORMAT_R16G16B16_UNORM:
+ return fetch_R16G16B16_UNORM;
+ case PIPE_FORMAT_R16G16B16A16_UNORM:
+ return fetch_R16G16B16A16_UNORM;
+
+ case PIPE_FORMAT_R16_USCALED:
+ return fetch_R16_USCALED;
+ case PIPE_FORMAT_R16G16_USCALED:
+ return fetch_R16G16_USCALED;
+ case PIPE_FORMAT_R16G16B16_USCALED:
+ return fetch_R16G16B16_USCALED;
+ case PIPE_FORMAT_R16G16B16A16_USCALED:
+ return fetch_R16G16B16A16_USCALED;
+
+ case PIPE_FORMAT_R16_SNORM:
+ return fetch_R16_SNORM;
+ case PIPE_FORMAT_R16G16_SNORM:
+ return fetch_R16G16_SNORM;
+ case PIPE_FORMAT_R16G16B16_SNORM:
+ return fetch_R16G16B16_SNORM;
+ case PIPE_FORMAT_R16G16B16A16_SNORM:
+ return fetch_R16G16B16A16_SNORM;
+
+ case PIPE_FORMAT_R16_SSCALED:
+ return fetch_R16_SSCALED;
+ case PIPE_FORMAT_R16G16_SSCALED:
+ return fetch_R16G16_SSCALED;
+ case PIPE_FORMAT_R16G16B16_SSCALED:
+ return fetch_R16G16B16_SSCALED;
+ case PIPE_FORMAT_R16G16B16A16_SSCALED:
+ return fetch_R16G16B16A16_SSCALED;
+
+ case PIPE_FORMAT_R8_UNORM:
+ return fetch_R8_UNORM;
+ case PIPE_FORMAT_R8G8_UNORM:
+ return fetch_R8G8_UNORM;
+ case PIPE_FORMAT_R8G8B8_UNORM:
+ return fetch_R8G8B8_UNORM;
+ case PIPE_FORMAT_R8G8B8A8_UNORM:
+ return fetch_R8G8B8A8_UNORM;
+
+ case PIPE_FORMAT_R8_USCALED:
+ return fetch_R8_USCALED;
+ case PIPE_FORMAT_R8G8_USCALED:
+ return fetch_R8G8_USCALED;
+ case PIPE_FORMAT_R8G8B8_USCALED:
+ return fetch_R8G8B8_USCALED;
+ case PIPE_FORMAT_R8G8B8A8_USCALED:
+ return fetch_R8G8B8A8_USCALED;
+
+ case PIPE_FORMAT_R8_SNORM:
+ return fetch_R8_SNORM;
+ case PIPE_FORMAT_R8G8_SNORM:
+ return fetch_R8G8_SNORM;
+ case PIPE_FORMAT_R8G8B8_SNORM:
+ return fetch_R8G8B8_SNORM;
+ case PIPE_FORMAT_R8G8B8A8_SNORM:
+ return fetch_R8G8B8A8_SNORM;
+
+ case PIPE_FORMAT_R8_SSCALED:
+ return fetch_R8_SSCALED;
+ case PIPE_FORMAT_R8G8_SSCALED:
+ return fetch_R8G8_SSCALED;
+ case PIPE_FORMAT_R8G8B8_SSCALED:
+ return fetch_R8G8B8_SSCALED;
+ case PIPE_FORMAT_R8G8B8A8_SSCALED:
+ return fetch_R8G8B8A8_SSCALED;
+
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
+ return fetch_A8R8G8B8_UNORM;
+
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
+ return fetch_B8G8R8A8_UNORM;
+
+ default:
+ assert(0);
+ return fetch_NULL;
+ }
+}
+
+
+
+
+static emit_func get_emit_func( enum pipe_format format )
+{
+ switch (format) {
+ case PIPE_FORMAT_R64_FLOAT:
+ return emit_R64_FLOAT;
+ case PIPE_FORMAT_R64G64_FLOAT:
+ return emit_R64G64_FLOAT;
+ case PIPE_FORMAT_R64G64B64_FLOAT:
+ return emit_R64G64B64_FLOAT;
+ case PIPE_FORMAT_R64G64B64A64_FLOAT:
+ return emit_R64G64B64A64_FLOAT;
+
+ case PIPE_FORMAT_R32_FLOAT:
+ return emit_R32_FLOAT;
+ case PIPE_FORMAT_R32G32_FLOAT:
+ return emit_R32G32_FLOAT;
+ case PIPE_FORMAT_R32G32B32_FLOAT:
+ return emit_R32G32B32_FLOAT;
+ case PIPE_FORMAT_R32G32B32A32_FLOAT:
+ return emit_R32G32B32A32_FLOAT;
+
+ case PIPE_FORMAT_R32_UNORM:
+ return emit_R32_UNORM;
+ case PIPE_FORMAT_R32G32_UNORM:
+ return emit_R32G32_UNORM;
+ case PIPE_FORMAT_R32G32B32_UNORM:
+ return emit_R32G32B32_UNORM;
+ case PIPE_FORMAT_R32G32B32A32_UNORM:
+ return emit_R32G32B32A32_UNORM;
+
+ case PIPE_FORMAT_R32_USCALED:
+ return emit_R32_USCALED;
+ case PIPE_FORMAT_R32G32_USCALED:
+ return emit_R32G32_USCALED;
+ case PIPE_FORMAT_R32G32B32_USCALED:
+ return emit_R32G32B32_USCALED;
+ case PIPE_FORMAT_R32G32B32A32_USCALED:
+ return emit_R32G32B32A32_USCALED;
+
+ case PIPE_FORMAT_R32_SNORM:
+ return emit_R32_SNORM;
+ case PIPE_FORMAT_R32G32_SNORM:
+ return emit_R32G32_SNORM;
+ case PIPE_FORMAT_R32G32B32_SNORM:
+ return emit_R32G32B32_SNORM;
+ case PIPE_FORMAT_R32G32B32A32_SNORM:
+ return emit_R32G32B32A32_SNORM;
+
+ case PIPE_FORMAT_R32_SSCALED:
+ return emit_R32_SSCALED;
+ case PIPE_FORMAT_R32G32_SSCALED:
+ return emit_R32G32_SSCALED;
+ case PIPE_FORMAT_R32G32B32_SSCALED:
+ return emit_R32G32B32_SSCALED;
+ case PIPE_FORMAT_R32G32B32A32_SSCALED:
+ return emit_R32G32B32A32_SSCALED;
+
+ case PIPE_FORMAT_R16_UNORM:
+ return emit_R16_UNORM;
+ case PIPE_FORMAT_R16G16_UNORM:
+ return emit_R16G16_UNORM;
+ case PIPE_FORMAT_R16G16B16_UNORM:
+ return emit_R16G16B16_UNORM;
+ case PIPE_FORMAT_R16G16B16A16_UNORM:
+ return emit_R16G16B16A16_UNORM;
+
+ case PIPE_FORMAT_R16_USCALED:
+ return emit_R16_USCALED;
+ case PIPE_FORMAT_R16G16_USCALED:
+ return emit_R16G16_USCALED;
+ case PIPE_FORMAT_R16G16B16_USCALED:
+ return emit_R16G16B16_USCALED;
+ case PIPE_FORMAT_R16G16B16A16_USCALED:
+ return emit_R16G16B16A16_USCALED;
+
+ case PIPE_FORMAT_R16_SNORM:
+ return emit_R16_SNORM;
+ case PIPE_FORMAT_R16G16_SNORM:
+ return emit_R16G16_SNORM;
+ case PIPE_FORMAT_R16G16B16_SNORM:
+ return emit_R16G16B16_SNORM;
+ case PIPE_FORMAT_R16G16B16A16_SNORM:
+ return emit_R16G16B16A16_SNORM;
+
+ case PIPE_FORMAT_R16_SSCALED:
+ return emit_R16_SSCALED;
+ case PIPE_FORMAT_R16G16_SSCALED:
+ return emit_R16G16_SSCALED;
+ case PIPE_FORMAT_R16G16B16_SSCALED:
+ return emit_R16G16B16_SSCALED;
+ case PIPE_FORMAT_R16G16B16A16_SSCALED:
+ return emit_R16G16B16A16_SSCALED;
+
+ case PIPE_FORMAT_R8_UNORM:
+ return emit_R8_UNORM;
+ case PIPE_FORMAT_R8G8_UNORM:
+ return emit_R8G8_UNORM;
+ case PIPE_FORMAT_R8G8B8_UNORM:
+ return emit_R8G8B8_UNORM;
+ case PIPE_FORMAT_R8G8B8A8_UNORM:
+ return emit_R8G8B8A8_UNORM;
+
+ case PIPE_FORMAT_R8_USCALED:
+ return emit_R8_USCALED;
+ case PIPE_FORMAT_R8G8_USCALED:
+ return emit_R8G8_USCALED;
+ case PIPE_FORMAT_R8G8B8_USCALED:
+ return emit_R8G8B8_USCALED;
+ case PIPE_FORMAT_R8G8B8A8_USCALED:
+ return emit_R8G8B8A8_USCALED;
+
+ case PIPE_FORMAT_R8_SNORM:
+ return emit_R8_SNORM;
+ case PIPE_FORMAT_R8G8_SNORM:
+ return emit_R8G8_SNORM;
+ case PIPE_FORMAT_R8G8B8_SNORM:
+ return emit_R8G8B8_SNORM;
+ case PIPE_FORMAT_R8G8B8A8_SNORM:
+ return emit_R8G8B8A8_SNORM;
+
+ case PIPE_FORMAT_R8_SSCALED:
+ return emit_R8_SSCALED;
+ case PIPE_FORMAT_R8G8_SSCALED:
+ return emit_R8G8_SSCALED;
+ case PIPE_FORMAT_R8G8B8_SSCALED:
+ return emit_R8G8B8_SSCALED;
+ case PIPE_FORMAT_R8G8B8A8_SSCALED:
+ return emit_R8G8B8A8_SSCALED;
+
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
+ return emit_A8R8G8B8_UNORM;
+
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
+ return emit_B8G8R8A8_UNORM;
+
+ default:
+ assert(0);
+ return emit_NULL;
+ }
+}
+
+
+
+/**
+ * Fetch vertex attributes for 'count' vertices.
+ */
+static void generic_run_elts( struct translate *translate,
+ const unsigned *elts,
+ unsigned count,
+ void *output_buffer )
+{
+ struct translate_generic *tg = translate_generic(translate);
+ char *vert = output_buffer;
+ unsigned nr_attrs = tg->nr_attrib;
+ unsigned attr;
+ unsigned i;
+
+ /* loop over vertex attributes (vertex shader inputs)
+ */
+ for (i = 0; i < count; i++) {
+ unsigned elt = *elts++;
+
+ for (attr = 0; attr < nr_attrs; attr++) {
+ float data[4];
+
+ const char *src = (tg->attrib[attr].input_ptr +
+ tg->attrib[attr].input_stride * elt);
+
+ char *dst = (vert +
+ tg->attrib[attr].output_offset);
+
+ tg->attrib[attr].fetch( src, data );
+ tg->attrib[attr].emit( data, dst );
+ }
+
+ vert += tg->output_stride;
+ }
+}
+
+
+
+static void generic_set_buffer( struct translate *translate,
+ unsigned buf,
+ const void *ptr,
+ unsigned stride )
+{
+ struct translate_generic *tg = translate_generic(translate);
+ unsigned i;
+
+ for (i = 0; i < tg->nr_attrib; i++) {
+ if (tg->attrib[i].buffer == buf) {
+ tg->attrib[i].input_ptr = ((char *)ptr +
+ tg->attrib[i].input_offset);
+ tg->attrib[i].input_stride = stride;
+ }
+ }
+}
+
+
+static void generic_destroy( struct translate *translate )
+{
+ FREE(translate);
+}
+
+struct translate *translate_generic_create( unsigned output_stride,
+ const struct translate_element *elements,
+ unsigned nr_elements )
+{
+ struct translate_generic *tg = CALLOC_STRUCT(translate_generic);
+ unsigned i;
+
+ if (tg == NULL)
+ return NULL;
+
+ tg->translate.destroy = generic_destroy;
+ tg->translate.set_buffer = generic_set_buffer;
+ tg->translate.run_elts = generic_run_elts;
+
+ for (i = 0; i < nr_elements; i++) {
+ tg->attrib[i].fetch = get_fetch_func(elements[i].input_format);
+ tg->attrib[i].buffer = elements[i].input_buffer;
+ tg->attrib[i].input_offset = elements[i].input_offset;
+
+ tg->attrib[i].emit = get_emit_func(elements[i].output_format);
+ tg->attrib[i].output_offset = elements[i].output_offset;
+ }
+
+ tg->nr_attrib = nr_elements;
+
+
+ return &tg->translate;
+}
projects / mesa.git / commitdiff