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video_core: Implement vulkan QuadStrip topology

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This commit is contained in:
FengChen 2022-12-12 22:17:33 +08:00
parent 8ef9075b1b
commit 86d5b4e556
8 changed files with 228 additions and 121 deletions
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6
src/video_core/host_shaders/vulkan_quad_indexed.comp
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@ -16,6 +16,7 @@ layout (std430, set = 0, binding = 1) writeonly buffer OutputBuffer {
layout (push_constant) uniform PushConstants {
uint base_vertex;
int index_shift; // 0: uint8, 1: uint16, 2: uint32
int is_strip; // 0: quads 1: quadstrip
};
void main() {
@ -28,9 +29,10 @@ void main() {
int flipped_shift = 2 - index_shift;
int mask = (1 << flipped_shift) - 1;
const int quad_swizzle[6] = int[](0, 1, 2, 0, 2, 3);
const int quads_swizzle[6] = int[](0, 1, 2, 0, 2, 3);
const int quad_strip_swizzle[6] = int[](0, 3, 1, 0, 2, 3);
for (uint vertex = 0; vertex < 6; ++vertex) {
int offset = primitive * 4 + quad_swizzle[vertex];
int offset = (is_strip == 0 ? primitive * 4 + quads_swizzle[vertex] : primitive * 2 + quad_strip_swizzle[vertex]);
int int_offset = offset >> flipped_shift;
int bit_offset = (offset & mask) * index_size;
uint packed_input = input_indexes[int_offset];