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MorsGames
GitHub Repository: MorsGames/sm64plus
 Path: blob/master/include/gfx_dimensions.h
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#ifndef GFX_DIMENSIONS_H

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#define GFX_DIMENSIONS_H

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/*

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This file is for ports that want to enable widescreen.

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Change the definitions to the following:

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#include <math.h>

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#define GFX_DIMENSIONS_FROM_LEFT_EDGE(v) (SCREEN_WIDTH / 2 - SCREEN_HEIGHT / 2 * [current_aspect_ratio] + (v))

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#define GFX_DIMENSIONS_FROM_RIGHT_EDGE(v) (SCREEN_WIDTH / 2 + SCREEN_HEIGHT / 2 * [current_aspect_ratio] - (v))

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#define GFX_DIMENSIONS_RECT_FROM_LEFT_EDGE(v) ((int)floorf(GFX_DIMENSIONS_FROM_LEFT_EDGE(v)))

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#define GFX_DIMENSIONS_RECT_FROM_RIGHT_EDGE(v) ((int)ceilf(GFX_DIMENSIONS_FROM_RIGHT_EDGE(v)))

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#define GFX_DIMENSIONS_ASPECT_RATIO [current_aspect_ratio]

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The idea is that SCREEN_WIDTH and SCREEN_HEIGHT are still hardcoded to 320 and 240, and that

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x=0 lies at where a 4:3 left edge would be. On 16:9 widescreen, the left edge is hence at -53.33.

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To get better accuracy, consider using floats instead of shorts for coordinates in Vertex and Matrix structures.

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The conversion to integers above is for RECT commands which naturally only accept integer values.

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Note that RECT commands must be enhanced to support negative coordinates with this modification.

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*/

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#ifdef WIDESCREEN

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#include <math.h>

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#include "pc/gfx/gfx_pc.h"

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#define GFX_DIMENSIONS_FROM_LEFT_EDGE(v) (SCREEN_WIDTH / 2 - SCREEN_HEIGHT / 2 * gfx_current_dimensions.aspect_ratio + (v))

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#define GFX_DIMENSIONS_FROM_RIGHT_EDGE(v) (SCREEN_WIDTH / 2 + SCREEN_HEIGHT / 2 * gfx_current_dimensions.aspect_ratio - (v))

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#define GFX_DIMENSIONS_RECT_FROM_LEFT_EDGE(v) ((int)floorf(GFX_DIMENSIONS_FROM_LEFT_EDGE(v)))

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#define GFX_DIMENSIONS_RECT_FROM_RIGHT_EDGE(v) ((int)ceilf(GFX_DIMENSIONS_FROM_RIGHT_EDGE(v)))

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#define GFX_DIMENSIONS_ASPECT_RATIO (gfx_current_dimensions.aspect_ratio)

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#else

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#define GFX_DIMENSIONS_FROM_LEFT_EDGE(v) (v)

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#define GFX_DIMENSIONS_FROM_RIGHT_EDGE(v) (SCREEN_WIDTH - (v))

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#define GFX_DIMENSIONS_RECT_FROM_LEFT_EDGE(v) (v)

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#define GFX_DIMENSIONS_RECT_FROM_RIGHT_EDGE(v) (SCREEN_WIDTH - (v))

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#define GFX_DIMENSIONS_ASPECT_RATIO (4.0f / 3.0f)

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#endif

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// If screen is taller than it is wide, radius should be equal to SCREEN_HEIGHT since we scale horizontally

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#define GFX_DIMENSIONS_FULL_RADIUS (SCREEN_HEIGHT * (GFX_DIMENSIONS_ASPECT_RATIO > 1 ? GFX_DIMENSIONS_ASPECT_RATIO : 1))

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#endif // GFX_DIMENSIONS_H

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