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https://github.com/lefticus/6502-cpp.git
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Introduce VIC_II::HighResSprite and VIC_II::MultiColorSprite.
write_multi_color_line(): Replaces write_multi_color_pixel(). write_line(): Replaces write_pixel(). The generated code is not affected by this change.
This commit is contained in:
Marko Mäkelä
parent
504d13a527
commit
24df091a6f
@ -192,42 +192,66 @@ namespace {
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return Frame(*this, p1, p2);
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}
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static void write_multi_color_pixel(uint8_t*)
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static void write_multi_color_line(uint8_t*)
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{
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// 0th case
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}
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static void write_pixel(uint8_t*)
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static void write_line(uint8_t*)
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{
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// 0th case
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}
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template<typename ... D >
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static void write_multi_color_pixel(uint8_t* mem, uint8_t d1, uint8_t d2,
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uint8_t d3, uint8_t d4, D ... d)
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static constexpr uint8_t multi_color_byte(uint_least16_t bits)
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{
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*mem = (d1 << 6) | (d2 << 4) | (d3 << 2) | d4;
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write_multi_color_pixel(mem + 1, d...);
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// 0aa0bb0cc0dd -> 0aabbccdd
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return
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(bits & 3) |
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(bits >> 1 & 3 << 2) |
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(bits >> 2 & 3 << 4) |
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(bits >> 3 & 3 << 6);
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}
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template<typename ... D >
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static void write_pixel(uint8_t *mem, bool d1, bool d2, bool d3, bool d4,
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bool d5, bool d6, bool d7, bool d8, D ... d)
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static void write_multi_color_line(uint8_t* mem, uint_least64_t l,
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D ... d)
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{
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*mem = (d1 << 7) | (d2 << 6) | (d3 << 5) | (d4 << 4) | (d5 << 3) | (d6 << 2) | (d7 << 1) | d8;
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write_pixel(mem + 1, d...);
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mem[0] = multi_color_byte(uint_least16_t(l >> 24));
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mem[1] = multi_color_byte(uint_least16_t(l >> 12));
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mem[2] = multi_color_byte(uint_least16_t(l));
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write_multi_color_line(mem + 3, d...);
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}
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template<typename ... D >
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static void write_line(uint8_t *mem, uint_least32_t l, D ... d)
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{
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mem[0] = uint8_t(l >> 16);
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mem[1] = uint8_t(l >> 8);
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mem[2] = uint8_t(l);
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write_line(mem + 3, d...);
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}
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struct Sprite {
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alignas(SPRITE_ALIGNMENT) uint8_t memory[63];
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};
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struct HighResSprite : public Sprite
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{
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template<typename ... D>
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Sprite(D ... d)
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HighResSprite(D ... d) : Sprite()
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{
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if constexpr(sizeof...(d) == 12 * 21) {
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write_multi_color_pixel(memory, d...);
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} else {
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write_pixel(memory, d...);
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}
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static_assert(sizeof...(d) == 21);
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write_line(memory, d...);
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}
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};
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struct MultiColorSprite : public Sprite
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{
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template<typename ... D>
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MultiColorSprite(D ... d) : Sprite()
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{
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write_multi_color_line(memory, d...);
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}
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};
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@ -255,6 +279,23 @@ namespace {
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set_bit(SPRITE_PRIORITY, sprite_number, low_priority);
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}
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void enable_sprite(const uint8_t sprite_number,
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const HighResSprite& bitmap,
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const bool low_priority,
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const bool double_width, const bool double_height)
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{
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enable_sprite(sprite_number, bitmap, false, low_priority,
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double_width, double_height);
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}
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void enable_sprite(const uint8_t sprite_number,
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const MultiColorSprite& bitmap,
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const bool low_priority,
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const bool double_width, const bool double_height)
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{
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enable_sprite(sprite_number, bitmap, true, low_priority,
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double_width, double_height);
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}
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auto sprite_collisions() {
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const auto collisions = memory(SPRITE_COLLISIONS);
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@ -293,53 +334,53 @@ namespace {
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/// The ball image. This has to be declared const in the global scope,
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/// or otherwise the data will not be initialized at compilation time.
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const VIC_II::Sprite sBall(
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,
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0,0,0,0,0,0,1,1,0,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,
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0,0,0,0,0,1,1,0,0,0,1,1,1,1,1,1,1,1,1,0,0,0,0,0,
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0,0,0,0,0,1,1,1,0,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,
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0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,
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0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,
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0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,
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0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,
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0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,
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0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,
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0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,
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0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,
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0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,
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0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
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const VIC_II::HighResSprite sBall(
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0b00000000000000000000000,
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0b00000000000000000000000,
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0b00000000111111000000000,
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0b00000011111111110000000,
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0b00000110111111111000000,
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0b00001100011111111100000,
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0b00001110111111111100000,
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0b00011111111111111110000,
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0b00011111111111111110000,
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0b00011111111111111110000,
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0b00000111111111111000000,
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0b00011000000000000110000,
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0b00011111111111111110000,
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0b00001111111111111100000,
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0b00001111111111111100000,
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0b00000111111111111000000,
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0b00000011111111110000000,
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0b00000000111111000000000,
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0b00000000000000000000000,
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0b00000000000000000000000,
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0b00000000000000000000000
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);
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/// The bat image.
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const VIC_II::Sprite sBat(
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,2,2,0,0,0,0,0,
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0,0,0,0,0,3,3,0,0,0,0,0,
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0,0,0,0,0,1,1,0,0,0,0,0,
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0,0,0,0,0,3,3,0,0,0,0,0,
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0,0,0,0,0,1,1,0,0,0,0,0,
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0,0,0,0,0,3,3,0,0,0,0,0
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const VIC_II::MultiColorSprite sBat(
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000002200000,
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0000003300000,
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0000001100000,
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0000003300000,
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0000001100000,
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0000003300000
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);
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int main()
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@ -365,9 +406,9 @@ int main()
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VIC_II vic;
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vic.enable_sprite(0, sBall, false, true, false, false);
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vic.enable_sprite(1, sBat, true, false, false, true);
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vic.enable_sprite(2, sBat, true, false, false, true);
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vic.enable_sprite(0, sBall, true, false, false);
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vic.enable_sprite(1, sBat, false, false, true);
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vic.enable_sprite(2, sBat, false, false, true);
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vic.border() = vic.nearest_color<128,128,128>(colors).num; // 50% grey
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vic.background() = vic.nearest_color<0,0,0>(colors).num; // black
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vic.sprite_1_color() = vic.nearest_color<255,0,0>(colors).num; // red
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