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HostDisplay: Fix vram pixels bleeding into edges of display with linear filtering

This commit is contained in:
Connor McLaughlin 2021-01-04 01:32:14 +10:00
parent 498b00a8e8
commit f369e3c476
3 changed files with 21 additions and 12 deletions
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11
src/frontend-common/d3d11_host_display.cpp
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@ -764,10 +764,13 @@ void D3D11HostDisplay::RenderDisplay(s32 left, s32 top, s32 width, s32 height, v
m_context->PSSetShaderResources(0, 1, reinterpret_cast<ID3D11ShaderResourceView**>(&texture_handle));
m_context->PSSetSamplers(0, 1, linear_filter ? m_linear_sampler.GetAddressOf() : m_point_sampler.GetAddressOf());
const float uniforms[4] = {static_cast<float>(texture_view_x) / static_cast<float>(texture_width),
static_cast<float>(texture_view_y) / static_cast<float>(texture_height),
(static_cast<float>(texture_view_width) - 0.5f) / static_cast<float>(texture_width),
(static_cast<float>(texture_view_height) - 0.5f) / static_cast<float>(texture_height)};
const float position_adjust = m_display_linear_filtering ? 0.5f : 0.0f;
const float size_adjust = m_display_linear_filtering ? 1.0f : 0.0f;
const float uniforms[4] = {
(static_cast<float>(texture_view_x) + position_adjust) / static_cast<float>(texture_width),
(static_cast<float>(texture_view_y) + position_adjust) / static_cast<float>(texture_height),
(static_cast<float>(texture_view_width) - size_adjust) / static_cast<float>(texture_width),
(static_cast<float>(texture_view_height) - size_adjust) / static_cast<float>(texture_height)};
const auto map = m_display_uniform_buffer.Map(m_context.Get(), m_display_uniform_buffer.GetSize(), sizeof(uniforms));
std::memcpy(map.pointer, uniforms, sizeof(uniforms));
m_display_uniform_buffer.Unmap(m_context.Get(), sizeof(uniforms));

12
src/frontend-common/opengl_host_display.cpp
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@ -775,10 +775,14 @@ void OpenGLHostDisplay::RenderDisplay(s32 left, s32 bottom, s32 width, s32 heigh
if (!m_use_gles2_draw_path)
{
m_display_program.Uniform4f(0, static_cast<float>(texture_view_x) / static_cast<float>(texture_width),
static_cast<float>(texture_view_y) / static_cast<float>(texture_height),
(static_cast<float>(texture_view_width) - 0.5f) / static_cast<float>(texture_width),
(static_cast<float>(texture_view_height) + 0.5f) / static_cast<float>(texture_height));
const float position_adjust = m_display_linear_filtering ? 0.5f : 0.0f;
const float size_adjust = m_display_linear_filtering ? 1.0f : 0.0f;
const float flip_adjust = (texture_view_height < 0) ? -1.0f : 1.0f;
m_display_program.Uniform4f(
0, (static_cast<float>(texture_view_x) + position_adjust) / static_cast<float>(texture_width),
(static_cast<float>(texture_view_y) + (position_adjust * flip_adjust)) / static_cast<float>(texture_height),
(static_cast<float>(texture_view_width) - size_adjust) / static_cast<float>(texture_width),
(static_cast<float>(texture_view_height) - (size_adjust * flip_adjust)) / static_cast<float>(texture_height));
glBindSampler(0, linear_filter ? m_display_linear_sampler : m_display_nearest_sampler);
glBindVertexArray(m_display_vao);
glDrawArrays(GL_TRIANGLES, 0, 3);

10
src/frontend-common/vulkan_host_display.cpp
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@ -714,10 +714,12 @@ void VulkanHostDisplay::RenderDisplay(s32 left, s32 top, s32 width, s32 height,
dsupdate.Update(g_vulkan_context->GetDevice());
}
const PushConstants pc{static_cast<float>(texture_view_x) / static_cast<float>(texture_width),
static_cast<float>(texture_view_y) / static_cast<float>(texture_height),
(static_cast<float>(texture_view_width) - 0.5f) / static_cast<float>(texture_width),
(static_cast<float>(texture_view_height) - 0.5f) / static_cast<float>(texture_height)};
const float position_adjust = m_display_linear_filtering ? 0.5f : 0.0f;
const float size_adjust = m_display_linear_filtering ? 1.0f : 0.0f;
const PushConstants pc{(static_cast<float>(texture_view_x) + position_adjust) / static_cast<float>(texture_width),
(static_cast<float>(texture_view_y) + position_adjust) / static_cast<float>(texture_height),
(static_cast<float>(texture_view_width) - size_adjust) / static_cast<float>(texture_width),
(static_cast<float>(texture_view_height) - size_adjust) / static_cast<float>(texture_height)};
vkCmdBindPipeline(cmdbuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, m_display_pipeline);
vkCmdPushConstants(cmdbuffer, m_pipeline_layout, VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(pc), &pc);