108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/**
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* Copyright (c) 2025 Dominic Masters
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*
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* This software is released under the MIT License.
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* https://opensource.org/licenses/MIT
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*/
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#pragma once
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#include "display/mesh/quad.h"
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#include "display/texture/texture.h"
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#define SPRITEBATCH_SPRITES_MAX 128
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#define SPRITEBATCH_VERTEX_COUNT (SPRITEBATCH_SPRITES_MAX * QUAD_VERTEX_COUNT)
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#if DOLPHIN
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#define SPRITEBATCH_SPRITES_MAX 16
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#define SPRITEBATCH_BATCH_COUNT 16
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#define SPRITEBATCH_VERTEX_COUNT (SPRITEBATCH_SPRITES_MAX * QUAD_VERTEX_COUNT * SPRITEBATCH_BATCH_COUNT)
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#endif
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typedef struct {
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mesh_t mesh;
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int32_t spriteCount;
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texture_t *currentTexture;
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#if DOLPHIN
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uint8_t batchIndex;
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#endif
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} spritebatch_t;
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// Have to define these seperately because of alignment in certain platforms.
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// (Looking at you Dolphin)/
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extern meshvertex_t SPRITEBATCH_VERTICES[SPRITEBATCH_VERTEX_COUNT];
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extern spritebatch_t SPRITEBATCH;
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/**
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* Initializes a sprite batch.
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*
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* @param spriteBatch The sprite batch to initialize.
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*/
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void spriteBatchInit();
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/**
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* Pushes a sprite to the batch. This basically "queues" it to render (well
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* technically it is buffering the vertices to the mesh at the moment, but
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* that is likely to change when we switch to VAOs or VBOs or even Shader UBOs).
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*
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* Currently changing texture pointer will cause the buffer to flush but this is
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* also likely to change in the future.
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*
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* @param texture The texture to use for the sprite.
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* @param minX The minimum x coordinate of the sprite.
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* @param minY The minimum y coordinate of the sprite.
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* @param maxX The maximum x coordinate of the sprite.
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* @param maxY The maximum y coordinate of the sprite.
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* @param color The color to tint the sprite with.
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* @param u0 The texture coordinate for the top-left corner of the sprite.
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* @param v0 The texture coordinate for the top-left corner of the sprite.
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* @param u1 The texture coordinate for the bottom-right corner of the sprite.
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* @param v1 The texture coordinate for the bottom-right corner of the sprite.
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*/
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void spriteBatchPush(
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texture_t *texture,
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const float_t minX,
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const float_t minY,
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const float_t maxX,
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const float_t maxY,
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const color_t color,
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const float_t u0,
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const float_t v0,
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const float_t u1,
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const float_t v1
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);
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/**
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* Pushes a 3D sprite to the batch. This is like spriteBatchPush but takes
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* 3D coordinates instead of 2D.
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*
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* @param texture The texture to use for the sprite.
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* @param min The minimum (x,y,z) coordinate of the sprite.
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* @param max The maximum (x,y,z) coordinate of the sprite.
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* @param color The color to tint the sprite with.
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* @param uvMin The texture coordinate for the top-left corner of the sprite.
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* @param uvMax The texture coordinate for the bottom-right corner of the sprite.
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*/
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void spriteBatchPush3D(
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texture_t *texture,
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const vec3 min,
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const vec3 max,
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const color_t color,
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const vec2 uvMin,
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const vec2 uvMax
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);
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/**
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* Clears the sprite batch. This will mean calling flush renders nothing.
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*/
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void spriteBatchClear();
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/**
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* Flushes the sprite batch, rendering all queued sprites.
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*/
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void spriteBatchFlush();
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/**
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* Disposes of the sprite batch, freeing any allocated resources.
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*/
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void spriteBatchDispose(); |