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GPU: Add method to convert from window coordinates to beam ticks/lines

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This commit is contained in:
Connor McLaughlin
2020-04-26 01:10:46 +10:00
parent a111e36ad7
commit 2ffcad3d37
4 changed files with 131 additions and 62 deletions
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11
src/core/host_display.h
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@ -30,6 +30,9 @@ public:
virtual ~HostDisplay();
ALWAYS_INLINE s32 GetWindowWidth() const { return m_window_width; }
ALWAYS_INLINE s32 GetWindowHeight() const { return m_window_height; }
virtual RenderAPI GetRenderAPI() const = 0;
virtual void* GetRenderDevice() const = 0;
virtual void* GetRenderContext() const = 0;
@ -96,6 +99,10 @@ public:
/// Helper function for computing the draw rectangle in a larger window.
std::tuple<s32, s32, s32, s32> CalculateDrawRect(s32 window_width, s32 window_height, s32 top_margin) const;
/// Helper function for converting window coordinates to display coordinates.
std::tuple<s32, s32> ConvertWindowCoordinatesToDisplayCoordinates(s32 window_x, s32 window_y, s32 window_width,
s32 window_height, s32 top_margin) const;
/// Helper function to save texture data to a PNG. If flip_y is set, the image will be flipped aka OpenGL.
bool WriteTextureToFile(const void* texture_handle, u32 x, u32 y, u32 width, u32 height, const char* filename,
bool clear_alpha = true, bool flip_y = false, u32 resize_width = 0, u32 resize_height = 0);
@ -108,6 +115,10 @@ public:
bool clear_alpha = true);
protected:
void CalculateDrawRect(s32 window_width, s32 window_height, s32* out_left, s32* out_top, s32* out_width,
s32* out_height, s32* out_left_padding, s32* out_top_padding, float* out_scale,
float* out_y_scale) const;
s32 m_window_width = 0;
s32 m_window_height = 0;