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text sw emulation

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This commit is contained in:
Blaise Tine
2021-04-15 22:34:04 -07:00
parent 66ff74eb97
commit a9f91b7acd
8 changed files with 749 additions and 4836 deletions
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16
driver/tests/tex_demo/kernel.c
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@@ -1,12 +1,14 @@
#include <stdint.h>
#include <vx_intrinsics.h>
#include "common.h"
#include "texsw.h"
uint32_t ilog2 (uint32_t value) {
return (uint32_t)(sizeof(uint32_t) * 8UL) - (uint32_t)__builtin_clzl((value << 1) - 1UL) - 1;
}
struct tile_arg_t {
struct kernel_arg_t karg;
struct kernel_arg_t* state;
uint32_t tile_width;
uint32_t tile_height;
float deltaX;
@@ -15,10 +17,11 @@ struct tile_arg_t {
void kernel_body(int task_id, void* arg) {
struct tile_arg_t* _arg = (struct tile_arg_t*)(arg);
struct kernel_arg_t* state = _arg->state;
uint32_t xoffset = 0;
uint32_t yoffset = task_id * _arg->tile_height;
uint8_t* dst_ptr = (uint8_t*)(_arg->karg.dst_ptr + xoffset * _arg->karg.dst_stride + yoffset * _arg->karg.dst_pitch);
uint8_t* dst_ptr = (uint8_t*)(state->dst_ptr + xoffset * state->dst_stride + yoffset * state->dst_pitch);
float fv = yoffset * _arg->deltaY;
for (uint32_t y = 0; y < _arg->tile_height; ++y) {
@@ -27,10 +30,11 @@ void kernel_body(int task_id, void* arg) {
for (uint32_t x = 0; x < _arg->tile_width; ++x) {
int32_t u = (int32_t)(fu * (1<<20));
int32_t v = (int32_t)(fv * (1<<20));
//dst_row[x] = tex_sw(state, 0, u, v, 0x0);
dst_row[x] = vx_tex(0, u, v, 0x0);
fu += _arg->deltaX;
}
dst_ptr += _arg->karg.dst_pitch;
dst_ptr += state->dst_pitch;
fv += _arg->deltaY;
}
}
@@ -41,14 +45,14 @@ int main() {
// configure texture unit
vx_csr_write(CSR_TEX_ADDR(0), arg->src_ptr);
vx_csr_write(CSR_TEX_MIPOFF(0), 0);
vx_csr_write(CSR_TEX_WIDTH(0), ilog2(arg->src_width));
vx_csr_write(CSR_TEX_HEIGHT(0), ilog2(arg->src_height));
vx_csr_write(CSR_TEX_WIDTH(0), arg->src_logWidth);
vx_csr_write(CSR_TEX_HEIGHT(0), arg->src_logHeight);
vx_csr_write(CSR_TEX_FORMAT(0), arg->format);
vx_csr_write(CSR_TEX_WRAP(0), (arg->wrap << 2) | arg->wrap);
vx_csr_write(CSR_TEX_FILTER(0), arg->filter);
struct tile_arg_t targ;
targ.karg = *arg;
targ.state = arg;
targ.tile_width = arg->dst_width;
targ.tile_height = (arg->dst_height + arg->num_tasks - 1) / arg->num_tasks;
targ.deltaX = 1.0f / arg->dst_width;