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OpenGLHostDisplay: Fix 16-bit display on GLES2

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This commit is contained in:
Connor McLaughlin 2021-08-12 21:29:46 +10:00
parent f0cb8cdc5c
commit 929aa2f3d1
1 changed files with 33 additions and 15 deletions
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48
src/frontend-common/opengl_host_display.cpp
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@ -59,14 +59,31 @@ void* OpenGLHostDisplay::GetRenderContext() const
return m_gl_context.get();
}
static constexpr std::array<std::tuple<GLenum, GLenum, GLenum>, static_cast<u32>(HostDisplayPixelFormat::Count)>
s_display_pixel_format_mapping = {{
{}, // Unknown
{GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE}, // RGBA8
{GL_RGBA8, GL_BGRA, GL_UNSIGNED_BYTE}, // BGRA8
{GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5}, // RGB565
{GL_RGB5_A1, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV} // RGBA5551
}};
static const std::tuple<GLenum, GLenum, GLenum>& GetPixelFormatMapping(bool is_gles, HostDisplayPixelFormat format)
{
static constexpr std::array<std::tuple<GLenum, GLenum, GLenum>, static_cast<u32>(HostDisplayPixelFormat::Count)>
mapping = {{
{}, // Unknown
{GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE}, // RGBA8
{GL_RGBA8, GL_BGRA, GL_UNSIGNED_BYTE}, // BGRA8
{GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5}, // RGB565
{GL_RGB5_A1, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV} // RGBA5551
}};
static constexpr std::array<std::tuple<GLenum, GLenum, GLenum>, static_cast<u32>(HostDisplayPixelFormat::Count)>
mapping_gles2 = {{
{}, // Unknown
{GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE}, // RGBA8
{}, // BGRA8
{GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5}, // RGB565
{} // RGBA5551
}};
if (is_gles && !GLAD_GL_ES_VERSION_3_0)
return mapping_gles2[static_cast<u32>(format)];
else
return mapping[static_cast<u32>(format)];
}
std::unique_ptr<HostDisplayTexture> OpenGLHostDisplay::CreateTexture(u32 width, u32 height, u32 layers, u32 levels,
u32 samples, HostDisplayPixelFormat format,
@ -76,7 +93,7 @@ std::unique_ptr<HostDisplayTexture> OpenGLHostDisplay::CreateTexture(u32 width,
if (layers != 1 || levels != 1)
return {};
const auto [gl_internal_format, gl_format, gl_type] = s_display_pixel_format_mapping[static_cast<u32>(format)];
const auto [gl_internal_format, gl_format, gl_type] = GetPixelFormatMapping(m_gl_context->IsGLES(), format);
// TODO: Set pack width
Assert(!data || data_stride == (width * sizeof(u32)));
@ -93,7 +110,8 @@ void OpenGLHostDisplay::UpdateTexture(HostDisplayTexture* texture, u32 x, u32 y,
{
OpenGLHostDisplayTexture* tex = static_cast<OpenGLHostDisplayTexture*>(texture);
const auto [gl_internal_format, gl_format, gl_type] =
s_display_pixel_format_mapping[static_cast<u32>(texture->GetFormat())];
GetPixelFormatMapping(m_gl_context->IsGLES(), texture->GetFormat());
GLint alignment;
if (texture_data_stride & 1)
alignment = 1;
@ -145,8 +163,7 @@ bool OpenGLHostDisplay::DownloadTexture(const void* texture_handle, HostDisplayP
}
const GLuint texture = static_cast<GLuint>(reinterpret_cast<uintptr_t>(texture_handle));
const auto [gl_internal_format, gl_format, gl_type] =
s_display_pixel_format_mapping[static_cast<u32>(texture_format)];
const auto [gl_internal_format, gl_format, gl_type] = GetPixelFormatMapping(m_gl_context->IsGLES(), texture_format);
GL::Texture::GetTextureSubImage(texture, 0, x, y, 0, width, height, 1, gl_format, gl_type, height * out_data_stride,
out_data);
@ -188,7 +205,8 @@ void OpenGLHostDisplay::UpdateDisplayPixelsTextureFilter()
bool OpenGLHostDisplay::SupportsDisplayPixelFormat(HostDisplayPixelFormat format) const
{
return (std::get<0>(s_display_pixel_format_mapping[static_cast<u32>(format)]) != static_cast<GLenum>(0));
const auto [gl_internal_format, gl_format, gl_type] = GetPixelFormatMapping(m_gl_context->IsGLES(), format);
return (gl_internal_format != static_cast<GLenum>(0));
}
bool OpenGLHostDisplay::BeginSetDisplayPixels(HostDisplayPixelFormat format, u32 width, u32 height, void** out_buffer,
@ -237,7 +255,7 @@ void OpenGLHostDisplay::EndSetDisplayPixels()
const u32 height = static_cast<u32>(m_display_texture_view_height);
const auto [gl_internal_format, gl_format, gl_type] =
s_display_pixel_format_mapping[static_cast<u32>(m_display_texture_format)];
GetPixelFormatMapping(m_gl_context->IsGLES(), m_display_texture_format);
glBindTexture(GL_TEXTURE_2D, m_display_pixels_texture_id);
if (m_use_pbo_for_pixels)
@ -266,7 +284,7 @@ bool OpenGLHostDisplay::SetDisplayPixels(HostDisplayPixelFormat format, u32 widt
{
BindDisplayPixelsTexture();
const auto [gl_internal_format, gl_format, gl_type] = s_display_pixel_format_mapping[static_cast<u32>(format)];
const auto [gl_internal_format, gl_format, gl_type] = GetPixelFormatMapping(m_gl_context->IsGLES(), format);
const u32 pixel_size = GetDisplayPixelFormatSize(format);
const bool is_packed_tightly = (pitch == (pixel_size * width));