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Vulkan: Use single VBO in filter chain.

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No need to have two separate buffers here.
This commit is contained in:
Hans-Kristian Arntzen 2016-03-25 19:23:58 +01:00
parent 939bc70ac6
commit b7b03c531a
1 changed files with 11 additions and 18 deletions
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29
gfx/drivers_shader/shader_vulkan.cpp
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@ -213,7 +213,7 @@ struct CommonResources
const VkPhysicalDeviceMemoryProperties &memory_properties);
~CommonResources();
unique_ptr<Buffer> vbo_offscreen, vbo_final;
unique_ptr<Buffer> vbo;
VkSampler samplers[2];
vector<Texture> original_history;
@ -1176,33 +1176,26 @@ CommonResources::CommonResources(VkDevice device,
{
// The final pass uses an MVP designed for [0, 1] range VBO.
// For in-between passes, we just go with identity matrices, so keep it simple.
const float vbo_data_offscreen[] = {
const float vbo_data[] = {
// Offscreen
-1.0f, -1.0f, 0.0f, 0.0f,
-1.0f, +1.0f, 0.0f, 1.0f,
1.0f, -1.0f, 1.0f, 0.0f,
1.0f, +1.0f, 1.0f, 1.0f,
};
const float vbo_data_final[] = {
// Final
0.0f, 0.0f, 0.0f, 0.0f,
0.0f, +1.0f, 0.0f, 1.0f,
1.0f, 0.0f, 1.0f, 0.0f,
1.0f, +1.0f, 1.0f, 1.0f,
};
vbo_offscreen = unique_ptr<Buffer>(new Buffer(device,
memory_properties, sizeof(vbo_data_offscreen), VK_BUFFER_USAGE_VERTEX_BUFFER_BIT));
vbo = unique_ptr<Buffer>(new Buffer(device,
memory_properties, sizeof(vbo_data), VK_BUFFER_USAGE_VERTEX_BUFFER_BIT));
void *ptr = vbo_offscreen->map();
memcpy(ptr, vbo_data_offscreen, sizeof(vbo_data_offscreen));
vbo_offscreen->unmap();
vbo_final = unique_ptr<Buffer>(new Buffer(device,
memory_properties, sizeof(vbo_data_final), VK_BUFFER_USAGE_VERTEX_BUFFER_BIT));
ptr = vbo_final->map();
memcpy(ptr, vbo_data_final, sizeof(vbo_data_final));
vbo_final->unmap();
void *ptr = vbo->map();
memcpy(ptr, vbo_data, sizeof(vbo_data));
vbo->unmap();
VkSamplerCreateInfo info = { VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO };
info.magFilter = VK_FILTER_NEAREST;
@ -1521,9 +1514,9 @@ void Pass::build_commands(
VKFUNC(vkCmdBindDescriptorSets)(cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline_layout,
0, 1, &sets[sync_index], 0, nullptr);
VkDeviceSize offset = 0;
VkDeviceSize offset = final_pass ? 16 * sizeof(float) : 0;
VKFUNC(vkCmdBindVertexBuffers)(cmd, 0, 1,
final_pass ? &common->vbo_final->get_buffer() : &common->vbo_offscreen->get_buffer(),
&common->vbo->get_buffer(),
&offset);
if (final_pass)