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#include "brw_context.h"
#include "brw_defines.h"
#include "brw_structs.h"
#include "util/u_memory.h"
#include "util/u_format.h"
static unsigned brw_translate_surface_format( unsigned id )
{
switch (id) {
case PIPE_FORMAT_R64_FLOAT:
return BRW_SURFACEFORMAT_R64_FLOAT;
case PIPE_FORMAT_R64G64_FLOAT:
return BRW_SURFACEFORMAT_R64G64_FLOAT;
case PIPE_FORMAT_R64G64B64_FLOAT:
return BRW_SURFACEFORMAT_R64G64B64_FLOAT;
case PIPE_FORMAT_R64G64B64A64_FLOAT:
return BRW_SURFACEFORMAT_R64G64B64A64_FLOAT;
case PIPE_FORMAT_R32_FLOAT:
return BRW_SURFACEFORMAT_R32_FLOAT;
case PIPE_FORMAT_R32G32_FLOAT:
return BRW_SURFACEFORMAT_R32G32_FLOAT;
case PIPE_FORMAT_R32G32B32_FLOAT:
return BRW_SURFACEFORMAT_R32G32B32_FLOAT;
case PIPE_FORMAT_R32G32B32A32_FLOAT:
return BRW_SURFACEFORMAT_R32G32B32A32_FLOAT;
case PIPE_FORMAT_R32_UNORM:
return BRW_SURFACEFORMAT_R32_UNORM;
case PIPE_FORMAT_R32G32_UNORM:
return BRW_SURFACEFORMAT_R32G32_UNORM;
case PIPE_FORMAT_R32G32B32_UNORM:
return BRW_SURFACEFORMAT_R32G32B32_UNORM;
case PIPE_FORMAT_R32G32B32A32_UNORM:
return BRW_SURFACEFORMAT_R32G32B32A32_UNORM;
case PIPE_FORMAT_R32_USCALED:
return BRW_SURFACEFORMAT_R32_USCALED;
case PIPE_FORMAT_R32G32_USCALED:
return BRW_SURFACEFORMAT_R32G32_USCALED;
case PIPE_FORMAT_R32G32B32_USCALED:
return BRW_SURFACEFORMAT_R32G32B32_USCALED;
case PIPE_FORMAT_R32G32B32A32_USCALED:
return BRW_SURFACEFORMAT_R32G32B32A32_USCALED;
case PIPE_FORMAT_R32_SNORM:
return BRW_SURFACEFORMAT_R32_SNORM;
case PIPE_FORMAT_R32G32_SNORM:
return BRW_SURFACEFORMAT_R32G32_SNORM;
case PIPE_FORMAT_R32G32B32_SNORM:
return BRW_SURFACEFORMAT_R32G32B32_SNORM;
case PIPE_FORMAT_R32G32B32A32_SNORM:
return BRW_SURFACEFORMAT_R32G32B32A32_SNORM;
case PIPE_FORMAT_R32_SSCALED:
return BRW_SURFACEFORMAT_R32_SSCALED;
case PIPE_FORMAT_R32G32_SSCALED:
return BRW_SURFACEFORMAT_R32G32_SSCALED;
case PIPE_FORMAT_R32G32B32_SSCALED:
return BRW_SURFACEFORMAT_R32G32B32_SSCALED;
case PIPE_FORMAT_R32G32B32A32_SSCALED:
return BRW_SURFACEFORMAT_R32G32B32A32_SSCALED;
case PIPE_FORMAT_R16_UNORM:
return BRW_SURFACEFORMAT_R16_UNORM;
case PIPE_FORMAT_R16G16_UNORM:
return BRW_SURFACEFORMAT_R16G16_UNORM;
case PIPE_FORMAT_R16G16B16_UNORM:
return BRW_SURFACEFORMAT_R16G16B16_UNORM;
case PIPE_FORMAT_R16G16B16A16_UNORM:
return BRW_SURFACEFORMAT_R16G16B16A16_UNORM;
case PIPE_FORMAT_R16_USCALED:
return BRW_SURFACEFORMAT_R16_USCALED;
case PIPE_FORMAT_R16G16_USCALED:
return BRW_SURFACEFORMAT_R16G16_USCALED;
case PIPE_FORMAT_R16G16B16_USCALED:
return BRW_SURFACEFORMAT_R16G16B16_USCALED;
case PIPE_FORMAT_R16G16B16A16_USCALED:
return BRW_SURFACEFORMAT_R16G16B16A16_USCALED;
case PIPE_FORMAT_R16_SNORM:
return BRW_SURFACEFORMAT_R16_SNORM;
case PIPE_FORMAT_R16G16_SNORM:
return BRW_SURFACEFORMAT_R16G16_SNORM;
case PIPE_FORMAT_R16G16B16_SNORM:
return BRW_SURFACEFORMAT_R16G16B16_SNORM;
case PIPE_FORMAT_R16G16B16A16_SNORM:
return BRW_SURFACEFORMAT_R16G16B16A16_SNORM;
case PIPE_FORMAT_R16_SSCALED:
return BRW_SURFACEFORMAT_R16_SSCALED;
case PIPE_FORMAT_R16G16_SSCALED:
return BRW_SURFACEFORMAT_R16G16_SSCALED;
case PIPE_FORMAT_R16G16B16_SSCALED:
return BRW_SURFACEFORMAT_R16G16B16_SSCALED;
case PIPE_FORMAT_R16G16B16A16_SSCALED:
return BRW_SURFACEFORMAT_R16G16B16A16_SSCALED;
case PIPE_FORMAT_R8_UNORM:
return BRW_SURFACEFORMAT_R8_UNORM;
case PIPE_FORMAT_R8G8_UNORM:
return BRW_SURFACEFORMAT_R8G8_UNORM;
case PIPE_FORMAT_R8G8B8_UNORM:
return BRW_SURFACEFORMAT_R8G8B8_UNORM;
case PIPE_FORMAT_R8G8B8A8_UNORM:
return BRW_SURFACEFORMAT_R8G8B8A8_UNORM;
case PIPE_FORMAT_R8_USCALED:
return BRW_SURFACEFORMAT_R8_USCALED;
case PIPE_FORMAT_R8G8_USCALED:
return BRW_SURFACEFORMAT_R8G8_USCALED;
case PIPE_FORMAT_R8G8B8_USCALED:
return BRW_SURFACEFORMAT_R8G8B8_USCALED;
case PIPE_FORMAT_R8G8B8A8_USCALED:
return BRW_SURFACEFORMAT_R8G8B8A8_USCALED;
case PIPE_FORMAT_R8_SNORM:
return BRW_SURFACEFORMAT_R8_SNORM;
case PIPE_FORMAT_R8G8_SNORM:
return BRW_SURFACEFORMAT_R8G8_SNORM;
case PIPE_FORMAT_R8G8B8_SNORM:
return BRW_SURFACEFORMAT_R8G8B8_SNORM;
case PIPE_FORMAT_R8G8B8A8_SNORM:
return BRW_SURFACEFORMAT_R8G8B8A8_SNORM;
case PIPE_FORMAT_R8_SSCALED:
return BRW_SURFACEFORMAT_R8_SSCALED;
case PIPE_FORMAT_R8G8_SSCALED:
return BRW_SURFACEFORMAT_R8G8_SSCALED;
case PIPE_FORMAT_R8G8B8_SSCALED:
return BRW_SURFACEFORMAT_R8G8B8_SSCALED;
case PIPE_FORMAT_R8G8B8A8_SSCALED:
return BRW_SURFACEFORMAT_R8G8B8A8_SSCALED;
default:
assert(0);
return 0;
}
}
static void brw_translate_vertex_elements(struct brw_context *brw,
struct brw_vertex_element_packet *brw_velems,
const struct pipe_vertex_element *attribs,
unsigned count)
{
unsigned i;
/* If the VS doesn't read any inputs (calculating vertex position from
* a state variable for some reason, for example), emit a single pad
* VERTEX_ELEMENT struct and bail.
*
* The stale VB state stays in place, but they don't do anything unless
* a VE loads from them.
*/
brw_velems->header.opcode = CMD_VERTEX_ELEMENT;
if (count == 0) {
brw_velems->header.length = 1;
brw_velems->ve[0].ve0.src_offset = 0;
brw_velems->ve[0].ve0.src_format = BRW_SURFACEFORMAT_R32G32B32A32_FLOAT;
brw_velems->ve[0].ve0.valid = 1;
brw_velems->ve[0].ve0.vertex_buffer_index = 0;
brw_velems->ve[0].ve1.dst_offset = 0;
brw_velems->ve[0].ve1.vfcomponent0 = BRW_VE1_COMPONENT_STORE_0;
brw_velems->ve[0].ve1.vfcomponent1 = BRW_VE1_COMPONENT_STORE_0;
brw_velems->ve[0].ve1.vfcomponent2 = BRW_VE1_COMPONENT_STORE_0;
brw_velems->ve[0].ve1.vfcomponent3 = BRW_VE1_COMPONENT_STORE_1_FLT;
return;
}
/* Now emit vertex element (VEP) state packets.
*
*/
brw_velems->header.length = (1 + count * 2) - 2;
for (i = 0; i < count; i++) {
const struct pipe_vertex_element *input = &attribs[i];
unsigned nr_components = util_format_get_nr_components(input->src_format);
uint32_t format = brw_translate_surface_format( input->src_format );
uint32_t comp0 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp1 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp2 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp3 = BRW_VE1_COMPONENT_STORE_SRC;
switch (nr_components) {
case 0: comp0 = BRW_VE1_COMPONENT_STORE_0; /* fallthrough */
case 1: comp1 = BRW_VE1_COMPONENT_STORE_0; /* fallthrough */
case 2: comp2 = BRW_VE1_COMPONENT_STORE_0; /* fallthrough */
case 3: comp3 = BRW_VE1_COMPONENT_STORE_1_FLT;
break;
}
brw_velems->ve[i].ve0.src_offset = input->src_offset;
brw_velems->ve[i].ve0.src_format = format;
brw_velems->ve[i].ve0.valid = 1;
brw_velems->ve[i].ve0.vertex_buffer_index = input->vertex_buffer_index;
brw_velems->ve[i].ve1.vfcomponent0 = comp0;
brw_velems->ve[i].ve1.vfcomponent1 = comp1;
brw_velems->ve[i].ve1.vfcomponent2 = comp2;
brw_velems->ve[i].ve1.vfcomponent3 = comp3;
if (BRW_IS_IGDNG(brw))
brw_velems->ve[i].ve1.dst_offset = 0;
else
brw_velems->ve[i].ve1.dst_offset = i * 4;
}
}
static void* brw_create_vertex_elements_state( struct pipe_context *pipe,
unsigned count,
const struct pipe_vertex_element *attribs )
{
/* note: for the brw_swtnl.c code (if ever we need draw fallback) we'd also need
to store the original data */
struct brw_context *brw = brw_context(pipe);
struct brw_vertex_element_packet *velems;
assert(count <= BRW_VEP_MAX);
velems = (struct brw_vertex_element_packet *) MALLOC(sizeof(struct brw_vertex_element_packet));
if (velems) {
brw_translate_vertex_elements(brw, velems, attribs, count);
}
return velems;
}
static void brw_bind_vertex_elements_state(struct pipe_context *pipe,
void *velems)
{
struct brw_context *brw = brw_context(pipe);
struct brw_vertex_element_packet *brw_velems = (struct brw_vertex_element_packet *) velems;
brw->curr.velems = brw_velems;
brw->state.dirty.mesa |= PIPE_NEW_VERTEX_ELEMENT;
}
static void brw_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
{
FREE( velems );
}
static void brw_set_vertex_buffers(struct pipe_context *pipe,
unsigned count,
const struct pipe_vertex_buffer *buffers)
{
struct brw_context *brw = brw_context(pipe);
unsigned i;
/* Check for no change */
if (count == brw->curr.num_vertex_buffers &&
memcmp(brw->curr.vertex_buffer,
buffers,
count * sizeof buffers[0]) == 0)
return;
/* Adjust refcounts */
for (i = 0; i < count; i++)
pipe_buffer_reference(&brw->curr.vertex_buffer[i].buffer,
buffers[i].buffer);
for ( ; i < brw->curr.num_vertex_buffers; i++)
pipe_buffer_reference(&brw->curr.vertex_buffer[i].buffer,
NULL);
/* Copy remaining data */
memcpy(brw->curr.vertex_buffer, buffers, count * sizeof buffers[0]);
brw->curr.num_vertex_buffers = count;
brw->state.dirty.mesa |= PIPE_NEW_VERTEX_BUFFER;
}
void
brw_pipe_vertex_init( struct brw_context *brw )
{
brw->base.set_vertex_buffers = brw_set_vertex_buffers;
brw->base.create_vertex_elements_state = brw_create_vertex_elements_state;
brw->base.bind_vertex_elements_state = brw_bind_vertex_elements_state;
brw->base.delete_vertex_elements_state = brw_delete_vertex_elements_state;
}
void
brw_pipe_vertex_cleanup( struct brw_context *brw )
{
/* Release bound pipe vertex_buffers
*/
/* Release some other stuff
*/
#if 0
for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
bo_reference(&brw->vb.inputs[i].bo, NULL);
brw->vb.inputs[i].bo = NULL;
}
#endif
}
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