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#define select_enhancement_buf_ptr(psx_gpu, x) \
((psx_gpu)->enhancement_buf_ptr + \
((psx_gpu)->enhancement_buf_by_x16[(x) / 16] << 20))
#ifndef NEON_BUILD
void setup_sprite_16bpp_4x(psx_gpu_struct *psx_gpu, s32 x, s32 y, s32 u,
s32 v, s32 width, s32 height, u32 color)
{
u32 left_offset = u & 0x7;
u32 width_rounded = width + left_offset + 7;
u16 *fb_ptr = psx_gpu->vram_out_ptr + (y * 1024) + (s32)(x - left_offset * 2);
u32 right_width = width_rounded & 0x7;
u32 block_width = width_rounded / 8;
u32 fb_ptr_pitch = (2048 + 16) - (block_width * 16);
u32 left_mask_bits = ~(0xFFFF << (left_offset * 2));
u32 right_mask_bits = 0xFFFC << (right_width * 2);
u32 texture_offset_base = u + (v * 1024);
u32 texture_mask =
psx_gpu->texture_mask_width | (psx_gpu->texture_mask_height * 1024);
u32 blocks_remaining;
u32 num_blocks = psx_gpu->num_blocks;
block_struct *block = psx_gpu->blocks + num_blocks;
u16 *texture_page_ptr = psx_gpu->texture_page_ptr;
u16 *texture_block_ptr;
texture_offset_base &= ~0x7;
sprites_16bpp++;
if(block_width == 1)
{
u32 mask_bits = left_mask_bits | right_mask_bits;
u32 mask_bits_a = mask_bits & 0xFF;
u32 mask_bits_b = mask_bits >> 8;
vec_8x16u texels;
vec_8x16u texels_wide;
while(height)
{
num_blocks += 4;
sprite_blocks += 4;
if(num_blocks > MAX_BLOCKS)
{
flush_render_block_buffer(psx_gpu);
num_blocks = 4;
block = psx_gpu->blocks;
}
texture_block_ptr =
texture_page_ptr + (texture_offset_base & texture_mask);
load_128b(texels, texture_block_ptr);
zip_4x32b(vector_cast(vec_4x32u, texels_wide), texels.low, texels.low);
block->texels = texels_wide;
block->draw_mask_bits = mask_bits_a;
block->fb_ptr = fb_ptr;
block++;
block->texels = texels_wide;
block->draw_mask_bits = mask_bits_a;
block->fb_ptr = fb_ptr + 1024;
block++;
zip_4x32b(vector_cast(vec_4x32u, texels_wide), texels.high, texels.high);
block->texels = texels_wide;
block->draw_mask_bits = mask_bits_b;
block->fb_ptr = fb_ptr + 8;
block++;
block->texels = texels_wide;
block->draw_mask_bits = mask_bits_b;
block->fb_ptr = fb_ptr + 8 + 1024;
block++;
texture_offset_base += 1024;
fb_ptr += 2048;
height--;
psx_gpu->num_blocks = num_blocks;
}
}
else
{
u32 texture_offset;
u32 left_mask_bits_a = left_mask_bits & 0xFF;
u32 left_mask_bits_b = left_mask_bits >> 8;
u32 right_mask_bits_a = right_mask_bits & 0xFF;
u32 right_mask_bits_b = right_mask_bits >> 8;
vec_8x16u texels;
vec_8x16u texels_wide;
while(height)
{
blocks_remaining = block_width - 2;
num_blocks += block_width * 4;
sprite_blocks += block_width * 4;
if(num_blocks > MAX_BLOCKS)
{
flush_render_block_buffer(psx_gpu);
num_blocks = block_width * 4;
block = psx_gpu->blocks;
}
texture_offset = texture_offset_base;
texture_offset_base += 1024;
texture_block_ptr = texture_page_ptr + (texture_offset & texture_mask);
load_128b(texels, texture_block_ptr);
zip_4x32b(vector_cast(vec_4x32u, texels_wide), texels.low, texels.low);
block->texels = texels_wide;
block->draw_mask_bits = left_mask_bits_a;
block->fb_ptr = fb_ptr;
block++;
block->texels = texels_wide;
block->draw_mask_bits = left_mask_bits_a;
block->fb_ptr = fb_ptr + 1024;
block++;
zip_4x32b(vector_cast(vec_4x32u, texels_wide), texels.high, texels.high);
block->texels = texels_wide;
block->draw_mask_bits = left_mask_bits_b;
block->fb_ptr = fb_ptr + 8;
block++;
block->texels = texels_wide;
block->draw_mask_bits = left_mask_bits_b;
block->fb_ptr = fb_ptr + 8 + 1024;
block++;
texture_offset += 8;
fb_ptr += 16;
while(blocks_remaining)
{
texture_block_ptr = texture_page_ptr + (texture_offset & texture_mask);
load_128b(texels, texture_block_ptr);
zip_4x32b(vector_cast(vec_4x32u, texels_wide), texels.low, texels.low);
block->texels = texels_wide;
block->draw_mask_bits = 0;
block->fb_ptr = fb_ptr;
block++;
block->texels = texels_wide;
block->draw_mask_bits = 0;
block->fb_ptr = fb_ptr + 1024;
block++;
zip_4x32b(vector_cast(vec_4x32u, texels_wide), texels.high, texels.high);
block->texels = texels_wide;
block->draw_mask_bits = 0;
block->fb_ptr = fb_ptr + 8;
block++;
block->texels = texels_wide;
block->draw_mask_bits = 0;
block->fb_ptr = fb_ptr + 8 + 1024;
block++;
texture_offset += 8;
fb_ptr += 16;
blocks_remaining--;
}
texture_block_ptr = texture_page_ptr + (texture_offset & texture_mask);
load_128b(texels, texture_block_ptr);
zip_4x32b(vector_cast(vec_4x32u, texels_wide), texels.low, texels.low);
block->texels = texels_wide;
block->draw_mask_bits = right_mask_bits_a;
block->fb_ptr = fb_ptr;
block++;
block->texels = texels_wide;
block->draw_mask_bits = right_mask_bits_a;
block->fb_ptr = fb_ptr + 1024;
block++;
zip_4x32b(vector_cast(vec_4x32u, texels_wide), texels.high, texels.high);
block->texels = texels_wide;
block->draw_mask_bits = right_mask_bits_b;
block->fb_ptr = fb_ptr + 8;
block++;
block->texels = texels_wide;
block->draw_mask_bits = right_mask_bits_b;
block->fb_ptr = fb_ptr + 8 + 1024;
block++;
fb_ptr += fb_ptr_pitch;
height--;
psx_gpu->num_blocks = num_blocks;
}
}
}
#endif
static void setup_sprite_untextured_4x(psx_gpu_struct *psx_gpu, s32 x, s32 y,
s32 u, s32 v, s32 width, s32 height, u32 color)
{
setup_sprite_untextured(psx_gpu, x, y, u, v, width * 2, height * 2, color);
}
#define setup_sprite_blocks_switch_textured_4x(texture_mode) \
setup_sprite_##texture_mode##_4x \
#define setup_sprite_blocks_switch_untextured_4x(texture_mode) \
setup_sprite_untextured_4x \
#define setup_sprite_blocks_switch_4x(texturing, texture_mode) \
setup_sprite_blocks_switch_##texturing##_4x(texture_mode) \
#define render_sprite_blocks_switch_block_modulation_4x(texture_mode, \
blend_mode, mask_evaluate, shading, dithering, texturing, blending, \
modulation) \
{ \
setup_sprite_blocks_switch_4x(texturing, texture_mode), \
texture_sprite_blocks_switch_##texturing(texture_mode), \
shade_blocks_switch(unshaded, texturing, modulation, undithered, blending, \
mask_evaluate), \
blend_blocks_switch(texturing, blending, blend_mode, mask_evaluate) \
} \
#define render_sprite_blocks_switch_block_blending_4x(texture_mode, \
blend_mode, mask_evaluate, shading, dithering, texturing, blending) \
render_sprite_blocks_switch_block_modulation_4x(texture_mode, blend_mode, \
mask_evaluate, shading, dithering, texturing, blending, modulated), \
render_sprite_blocks_switch_block_modulation_4x(texture_mode, blend_mode, \
mask_evaluate, shading, dithering, texturing, blending, unmodulated) \
#define render_sprite_blocks_switch_block_texturing_4x(texture_mode, \
blend_mode, mask_evaluate, shading, dithering, texturing) \
render_sprite_blocks_switch_block_blending_4x(texture_mode, blend_mode, \
mask_evaluate, shading, dithering, texturing, unblended), \
render_sprite_blocks_switch_block_blending_4x(texture_mode, blend_mode, \
mask_evaluate, shading, dithering, texturing, blended) \
#define render_sprite_blocks_switch_block_dithering_4x(texture_mode, \
blend_mode, mask_evaluate, shading, dithering) \
render_sprite_blocks_switch_block_texturing_4x(texture_mode, blend_mode, \
mask_evaluate, shading, dithering, untextured), \
render_sprite_blocks_switch_block_texturing_4x(texture_mode, blend_mode, \
mask_evaluate, shading, dithering, textured) \
#define render_sprite_blocks_switch_block_shading_4x(texture_mode, blend_mode, \
mask_evaluate, shading) \
render_sprite_blocks_switch_block_dithering_4x(texture_mode, blend_mode, \
mask_evaluate, shading, undithered), \
render_sprite_blocks_switch_block_dithering_4x(texture_mode, blend_mode, \
mask_evaluate, shading, dithered) \
#define render_sprite_blocks_switch_block_mask_evaluate_4x(texture_mode, \
blend_mode, mask_evaluate) \
render_sprite_blocks_switch_block_shading_4x(texture_mode, blend_mode, \
mask_evaluate, unshaded), \
render_sprite_blocks_switch_block_shading_4x(texture_mode, blend_mode, \
mask_evaluate, shaded) \
#define render_sprite_blocks_switch_block_blend_mode_4x(texture_mode, \
blend_mode) \
render_sprite_blocks_switch_block_mask_evaluate_4x(texture_mode, blend_mode, \
off), \
render_sprite_blocks_switch_block_mask_evaluate_4x(texture_mode, blend_mode, \
on) \
#define render_sprite_blocks_switch_block_texture_mode_4x(texture_mode) \
render_sprite_blocks_switch_block_blend_mode_4x(texture_mode, average), \
render_sprite_blocks_switch_block_blend_mode_4x(texture_mode, add), \
render_sprite_blocks_switch_block_blend_mode_4x(texture_mode, subtract), \
render_sprite_blocks_switch_block_blend_mode_4x(texture_mode, add_fourth) \
#define render_sprite_blocks_switch_block_4x() \
render_sprite_blocks_switch_block_texture_mode_4x(4bpp), \
render_sprite_blocks_switch_block_texture_mode_4x(8bpp), \
render_sprite_blocks_switch_block_texture_mode_4x(16bpp), \
render_sprite_blocks_switch_block_texture_mode_4x(4bpp) \
render_block_handler_struct render_sprite_block_handlers_4x[] =
{
render_sprite_blocks_switch_block_4x()
};
void render_sprite_4x(psx_gpu_struct *psx_gpu, s32 x, s32 y, u32 u, u32 v,
s32 width, s32 height, u32 flags, u32 color)
{
s32 x_right = x + width - 1;
s32 y_bottom = y + height - 1;
#ifdef PROFILE
sprites++;
#endif
if(x < psx_gpu->viewport_start_x)
{
u32 clip = psx_gpu->viewport_start_x - x;
x += clip;
u += clip;
width -= clip;
}
if(y < psx_gpu->viewport_start_y)
{
s32 clip = psx_gpu->viewport_start_y - y;
y += clip;
v += clip;
height -= clip;
}
if(x_right > psx_gpu->viewport_end_x)
width -= x_right - psx_gpu->viewport_end_x;
if(y_bottom > psx_gpu->viewport_end_y)
height -= y_bottom - psx_gpu->viewport_end_y;
if((width <= 0) || (height <= 0))
return;
psx_gpu->vram_out_ptr = select_enhancement_buf_ptr(psx_gpu, x);
x *= 2;
y *= 2;
#ifdef PROFILE
span_pixels += width * height;
spans += height;
#endif
u32 render_state = flags &
(RENDER_FLAGS_MODULATE_TEXELS | RENDER_FLAGS_BLEND |
RENDER_FLAGS_TEXTURE_MAP);
render_state |=
(psx_gpu->render_state_base & ~RENDER_STATE_DITHER);
if((psx_gpu->render_state != render_state) ||
(psx_gpu->primitive_type != PRIMITIVE_TYPE_SPRITE))
{
psx_gpu->render_state = render_state;
flush_render_block_buffer(psx_gpu);
#ifdef PROFILE
state_changes++;
#endif
}
psx_gpu->primitive_type = PRIMITIVE_TYPE_SPRITE;
color &= 0xFFFFFF;
if(psx_gpu->triangle_color != color)
{
flush_render_block_buffer(psx_gpu);
psx_gpu->triangle_color = color;
}
if(color == 0x808080)
render_state |= RENDER_FLAGS_MODULATE_TEXELS;
render_block_handler_struct *render_block_handler =
&(render_sprite_block_handlers_4x[render_state]);
psx_gpu->render_block_handler = render_block_handler;
((setup_sprite_function_type *)render_block_handler->setup_blocks)
(psx_gpu, x, y, u, v, width, height, color);
}
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