--- /dev/null
+/*
+ * Copyright (C) 2011 Gilead Kutnick "Exophase" <exophase@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef PSX_GPU_H
+#define PSX_GPU_H
+
+typedef enum
+{
+ PRIMITIVE_TYPE_TRIANGLE = 0,
+ PRIMITIVE_TYPE_SPRITE = 1,
+ PRIMITIVE_TYPE_LINE = 2,
+ PRIMITIVE_TYPE_UNKNOWN = 3
+} primitive_type_enum;
+
+typedef enum
+{
+ TEXTURE_MODE_4BPP = 0,
+ TEXTURE_MODE_8BPP = 1,
+ TEXTURE_MODE_16BPP = 2
+} texture_mode_enum;
+
+typedef enum
+{
+ BLEND_MODE_AVERAGE = 0,
+ BLEND_MODE_ADD = 1,
+ BLEND_MODE_SUBTRACT = 2,
+ BLEND_MODE_ADD_FOURTH = 3
+} blend_mode_enum;
+
+typedef enum
+{
+ RENDER_FLAGS_MODULATE_TEXELS = 0x1,
+ RENDER_FLAGS_BLEND = 0x2,
+ RENDER_FLAGS_TEXTURE_MAP = 0x4,
+ RENDER_FLAGS_QUAD = 0x8,
+ RENDER_FLAGS_SHADE = 0x10,
+} render_flags_enum;
+
+typedef enum
+{
+ RENDER_STATE_DITHER = 0x8,
+ RENDER_STATE_MASK_EVALUATE = 0x20,
+} render_state_enum;
+
+typedef struct
+{
+ u16 left_x;
+ u16 num_blocks;
+ u16 right_mask;
+ u16 y;
+} edge_data_struct;
+
+// 64 bytes total
+typedef struct
+{
+ // 16 bytes
+ union
+ {
+ vec_8x16u uv;
+ vec_8x16u texels;
+ vec_8x16u draw_mask;
+ };
+
+ // 24 bytes
+ union
+ {
+ struct
+ {
+ vec_8x8u r;
+ vec_8x8u g;
+ vec_8x8u b;
+ };
+
+ vec_8x16u pixels;
+ };
+
+ // 8 bytes
+ u32 draw_mask_bits;
+ u16 *fb_ptr;
+
+ // 16 bytes
+ vec_8x16u dither_offsets;
+} block_struct;
+
+#define MAX_SPANS 512
+#define MAX_BLOCKS 64
+#define MAX_BLOCKS_PER_ROW 128
+
+#define SPAN_DATA_BLOCKS_SIZE 32
+
+typedef struct render_block_handler_struct render_block_handler_struct;
+
+typedef struct
+{
+ // 144 bytes
+ vec_8x16u test_mask;
+
+ vec_4x32u uvrg;
+ vec_4x32u uvrg_dx;
+ vec_4x32u uvrg_dy;
+
+ vec_4x32u u_block_span;
+ vec_4x32u v_block_span;
+ vec_4x32u r_block_span;
+ vec_4x32u g_block_span;
+ vec_4x32u b_block_span;
+
+ // 72 bytes
+ u32 b;
+ u32 b_dy;
+
+ u32 triangle_area;
+
+ u32 texture_window_settings;
+ u32 current_texture_mask;
+ u32 viewport_mask;
+ u32 dirty_textures_4bpp_mask;
+ u32 dirty_textures_8bpp_mask;
+ u32 dirty_textures_8bpp_alternate_mask;
+
+ u32 triangle_color;
+ u32 primitive_color;
+
+ u32 dither_table[4];
+
+ struct render_block_handler_struct *render_block_handler;
+ void *texture_page_ptr;
+ u16 *clut_ptr;
+ u16 *vram_ptr;
+
+ // 26 bytes
+ u16 render_state_base;
+ u16 render_state;
+
+ u16 num_spans;
+ u16 num_blocks;
+
+ s16 offset_x;
+ s16 offset_y;
+
+ u16 clut_settings;
+ u16 texture_settings;
+
+ s16 viewport_start_x;
+ s16 viewport_start_y;
+ s16 viewport_end_x;
+ s16 viewport_end_y;
+
+ u16 mask_msb;
+
+ // 8 bytes
+ u8 triangle_winding;
+
+ u8 display_area_draw_enable;
+
+ u8 current_texture_page;
+ u8 last_8bpp_texture_page;
+
+ u8 texture_mask_width;
+ u8 texture_mask_height;
+ u8 texture_window_x;
+ u8 texture_window_y;
+
+ u8 primitive_type;
+
+ // Align up to 64 byte boundary to keep the upcoming buffers cache line
+ // aligned
+ u8 reserved_a[1];
+
+ // 8KB
+ block_struct blocks[MAX_BLOCKS_PER_ROW];
+
+ // 14336 bytes
+ vec_4x32u span_uvrg_offset[MAX_SPANS];
+ edge_data_struct span_edge_data[MAX_SPANS];
+ u32 span_b_offset[MAX_SPANS];
+
+ u16 _vram[1024 * 512];
+ u8 texture_4bpp_cache[32][256 * 256];
+ u8 texture_8bpp_even_cache[16][256 * 256];
+ u8 texture_8bpp_odd_cache[16][256 * 256];
+
+ u32 pixel_count_mode;
+ u32 pixel_compare_mode;
+
+ u8 *vram_pixel_counts_a;
+ u8 *vram_pixel_counts_b;
+ u16 *compare_vram;
+} psx_gpu_struct;
+
+typedef struct __attribute__((aligned(16)))
+{
+ u8 u;
+ u8 v;
+
+ u8 r;
+ u8 g;
+ u8 b;
+
+ u8 reserved[3];
+
+ s16 x;
+ s16 y;
+} vertex_struct;
+
+void render_block_fill(psx_gpu_struct *psx_gpu, u32 color, u32 x, u32 y,
+ u32 width, u32 height);
+void render_block_copy(psx_gpu_struct *psx_gpu, u16 *source, u32 x, u32 y,
+ u32 width, u32 height, u32 pitch);
+void render_block_move(psx_gpu_struct *psx_gpu, u32 source_x, u32 source_y,
+ u32 dest_x, u32 dest_y, u32 width, u32 height);
+
+void render_triangle(psx_gpu_struct *psx_gpu, vertex_struct *vertexes,
+ u32 flags);
+void render_sprite(psx_gpu_struct *psx_gpu, s32 x, s32 y, u32 u, u32 v,
+ s32 width, s32 height, u32 flags, u32 color);
+void render_line(psx_gpu_struct *gpu, vertex_struct *vertexes, u32 flags,
+ u32 color);
+
+u32 texture_region_mask(s32 x1, s32 y1, s32 x2, s32 y2);
+
+void flush_render_block_buffer(psx_gpu_struct *psx_gpu);
+
+void initialize_psx_gpu(psx_gpu_struct *psx_gpu);
+void gpu_parse(psx_gpu_struct *psx_gpu, u32 *list, u32 size);
+
+void triangle_benchmark(psx_gpu_struct *psx_gpu);
+
+#endif
+
notaz.gp2x.de / pcsx_rearmed.git / blobdiff