*
**********************************************************/
+#include "util/u_helpers.h"
#include "util/u_inlines.h"
#include "pipe/p_defines.h"
#include "util/u_math.h"
#include "util/u_memory.h"
+#include "util/u_transfer.h"
#include "tgsi/tgsi_parse.h"
#include "svga_screen.h"
static void svga_set_vertex_buffers(struct pipe_context *pipe,
- unsigned count,
+ unsigned start_slot, unsigned count,
const struct pipe_vertex_buffer *buffers)
{
struct svga_context *svga = svga_context(pipe);
- unsigned i;
- boolean any_user_buffer = FALSE;
-
- /* Check for no change */
- if (count == svga->curr.num_vertex_buffers &&
- memcmp(svga->curr.vb, buffers, count * sizeof buffers[0]) == 0)
- return;
-
- /* Adjust refcounts */
- for (i = 0; i < count; i++) {
- pipe_resource_reference(&svga->curr.vb[i].buffer, buffers[i].buffer);
- if (svga_buffer_is_user_buffer(buffers[i].buffer))
- any_user_buffer = TRUE;
- }
-
- for ( ; i < svga->curr.num_vertex_buffers; i++)
- pipe_resource_reference(&svga->curr.vb[i].buffer, NULL);
- /* Copy remaining data */
- memcpy(svga->curr.vb, buffers, count * sizeof buffers[0]);
- svga->curr.num_vertex_buffers = count;
- svga->curr.any_user_vertex_buffers = any_user_buffer;
+ util_set_vertex_buffers_count(svga->curr.vb,
+ &svga->curr.num_vertex_buffers,
+ buffers, start_slot, count);
svga->dirty |= SVGA_NEW_VBUFFER;
}
}
+/**
+ * Given a gallium vertex element format, return the corresponding SVGA3D
+ * format. Return SVGA3D_DECLTYPE_MAX for unsupported gallium formats.
+ */
+static SVGA3dDeclType
+translate_vertex_format(enum pipe_format format)
+{
+ switch (format) {
+ case PIPE_FORMAT_R32_FLOAT: return SVGA3D_DECLTYPE_FLOAT1;
+ case PIPE_FORMAT_R32G32_FLOAT: return SVGA3D_DECLTYPE_FLOAT2;
+ case PIPE_FORMAT_R32G32B32_FLOAT: return SVGA3D_DECLTYPE_FLOAT3;
+ case PIPE_FORMAT_R32G32B32A32_FLOAT: return SVGA3D_DECLTYPE_FLOAT4;
+ case PIPE_FORMAT_B8G8R8A8_UNORM: return SVGA3D_DECLTYPE_D3DCOLOR;
+ case PIPE_FORMAT_R8G8B8A8_USCALED: return SVGA3D_DECLTYPE_UBYTE4;
+ case PIPE_FORMAT_R16G16_SSCALED: return SVGA3D_DECLTYPE_SHORT2;
+ case PIPE_FORMAT_R16G16B16A16_SSCALED: return SVGA3D_DECLTYPE_SHORT4;
+ case PIPE_FORMAT_R8G8B8A8_UNORM: return SVGA3D_DECLTYPE_UBYTE4N;
+ case PIPE_FORMAT_R16G16_SNORM: return SVGA3D_DECLTYPE_SHORT2N;
+ case PIPE_FORMAT_R16G16B16A16_SNORM: return SVGA3D_DECLTYPE_SHORT4N;
+ case PIPE_FORMAT_R16G16_UNORM: return SVGA3D_DECLTYPE_USHORT2N;
+ case PIPE_FORMAT_R16G16B16A16_UNORM: return SVGA3D_DECLTYPE_USHORT4N;
+ case PIPE_FORMAT_R10G10B10X2_USCALED: return SVGA3D_DECLTYPE_UDEC3;
+ case PIPE_FORMAT_R10G10B10X2_SNORM: return SVGA3D_DECLTYPE_DEC3N;
+ case PIPE_FORMAT_R16G16_FLOAT: return SVGA3D_DECLTYPE_FLOAT16_2;
+ case PIPE_FORMAT_R16G16B16A16_FLOAT: return SVGA3D_DECLTYPE_FLOAT16_4;
+
+ /* See attrib_needs_adjustment() and attrib_needs_w_to_1() below */
+ case PIPE_FORMAT_R8G8B8_SNORM: return SVGA3D_DECLTYPE_UBYTE4N;
+
+ /* See attrib_needs_w_to_1() below */
+ case PIPE_FORMAT_R16G16B16_SNORM: return SVGA3D_DECLTYPE_SHORT4N;
+ case PIPE_FORMAT_R16G16B16_UNORM: return SVGA3D_DECLTYPE_USHORT4N;
+ case PIPE_FORMAT_R8G8B8_UNORM: return SVGA3D_DECLTYPE_UBYTE4N;
+
+ default:
+ /* There are many formats without hardware support. This case
+ * will be hit regularly, meaning we'll need swvfetch.
+ */
+ return SVGA3D_DECLTYPE_MAX;
+ }
+}
+
+
+/**
+ * Does the given vertex attrib format need range adjustment in the VS?
+ * Range adjustment scales and biases values from [0,1] to [-1,1].
+ * This lets us avoid the swtnl path.
+ */
+static boolean
+attrib_needs_range_adjustment(enum pipe_format format)
+{
+ switch (format) {
+ case PIPE_FORMAT_R8G8B8_SNORM:
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+
+/**
+ * Does the given vertex attrib format need to have the W component set
+ * to one in the VS?
+ */
+static boolean
+attrib_needs_w_to_1(enum pipe_format format)
+{
+ switch (format) {
+ case PIPE_FORMAT_R8G8B8_SNORM:
+ case PIPE_FORMAT_R8G8B8_UNORM:
+ case PIPE_FORMAT_R16G16B16_SNORM:
+ case PIPE_FORMAT_R16G16B16_UNORM:
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+
static void *
svga_create_vertex_elements_state(struct pipe_context *pipe,
unsigned count,
assert(count <= PIPE_MAX_ATTRIBS);
velems = (struct svga_velems_state *) MALLOC(sizeof(struct svga_velems_state));
if (velems) {
+ unsigned i;
+
velems->count = count;
memcpy(velems->velem, attribs, sizeof(*attribs) * count);
+
+ velems->need_swvfetch = FALSE;
+ velems->adjust_attrib_range = 0x0;
+ velems->adjust_attrib_w_1 = 0x0;
+
+ /* Translate Gallium vertex format to SVGA3dDeclType */
+ for (i = 0; i < count; i++) {
+ enum pipe_format f = attribs[i].src_format;
+ velems->decl_type[i] = translate_vertex_format(f);
+ if (velems->decl_type[i] == SVGA3D_DECLTYPE_MAX) {
+ /* Unsupported format - use software fetch */
+ velems->need_swvfetch = TRUE;
+ break;
+ }
+
+ if (attrib_needs_range_adjustment(f)) {
+ velems->adjust_attrib_range |= (1 << i);
+ }
+ if (attrib_needs_w_to_1(f)) {
+ velems->adjust_attrib_w_1 |= (1 << i);
+ }
+ }
}
return velems;
}
projects / mesa.git / blobdiff