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path: root/plugins/gpu_neon/psx_gpu/psx_gpu_parse.c
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Diffstat (limited to 'plugins/gpu_neon/psx_gpu/psx_gpu_parse.c')
-rw-r--r--plugins/gpu_neon/psx_gpu/psx_gpu_parse.c670
1 files changed, 670 insertions, 0 deletions
diff --git a/plugins/gpu_neon/psx_gpu/psx_gpu_parse.c b/plugins/gpu_neon/psx_gpu/psx_gpu_parse.c
new file mode 100644
index 0000000..98f2d85
--- /dev/null
+++ b/plugins/gpu_neon/psx_gpu/psx_gpu_parse.c
@@ -0,0 +1,670 @@
+/*
+ * 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.
+ */
+
+#include <stdio.h>
+
+#include "common.h"
+
+const u8 command_lengths[256] =
+{
+ 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 00
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 10
+ 3, 3, 3, 3, 6, 6, 6, 6, 4, 4, 4, 4, 8, 8, 8, 8, // 20
+ 5, 5, 5, 5, 8, 8, 8, 8, 7, 7, 7, 7, 11, 11, 11, 11, // 30
+ 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, // 40
+ 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, // 50
+ 2, 2, 2, 2, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, // 60
+ 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, // 70
+ 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 80
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 90
+ 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // a0
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // b0
+ 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // c0
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // d0
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // e0
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 // f0
+};
+
+void update_texture_ptr(psx_gpu_struct *psx_gpu)
+{
+ u8 *texture_ptr;
+
+ switch((psx_gpu->render_state_base >> 8) & 0x3)
+ {
+ default:
+ case TEXTURE_MODE_4BPP:
+#ifdef TEXTURE_CACHE_4BPP
+ texture_ptr = psx_gpu->texture_4bpp_cache[psx_gpu->current_texture_page];
+ texture_ptr += psx_gpu->texture_window_x & 0xF;
+ texture_ptr += (psx_gpu->texture_window_y & 0xF) << 4;
+ texture_ptr += (psx_gpu->texture_window_x >> 4) << 8;
+ texture_ptr += (psx_gpu->texture_window_y >> 4) << 12;
+#else
+ texture_ptr = (u8 *)(psx_gpu->vram_ptr);
+ texture_ptr += (psx_gpu->current_texture_page & 0xF) * 128;
+ texture_ptr += ((psx_gpu->current_texture_page >> 4) * 256) * 2048;
+ texture_ptr += psx_gpu->texture_window_x / 2;
+ texture_ptr += (psx_gpu->texture_window_y) * 2048;
+#endif
+ break;
+
+ case TEXTURE_MODE_8BPP:
+#ifdef TEXTURE_CACHE_8BPP
+ if(psx_gpu->current_texture_page & 0x1)
+ {
+ texture_ptr =
+ psx_gpu->texture_8bpp_odd_cache[psx_gpu->current_texture_page >> 1];
+ }
+ else
+ {
+ texture_ptr =
+ psx_gpu->texture_8bpp_even_cache[psx_gpu->current_texture_page >> 1];
+ }
+
+ texture_ptr += (psx_gpu->texture_window_y & 0xF) << 4;
+ texture_ptr += (psx_gpu->texture_window_x >> 4) << 8;
+ texture_ptr += (psx_gpu->texture_window_y >> 4) << 12;
+#else
+ texture_ptr = (u8 *)(psx_gpu->vram_ptr);
+ texture_ptr += (psx_gpu->current_texture_page & 0xF) * 128;
+ texture_ptr += ((psx_gpu->current_texture_page >> 4) * 256) * 2048;
+ texture_ptr += psx_gpu->texture_window_x;
+ texture_ptr += (psx_gpu->texture_window_y) * 2048;
+#endif
+ break;
+
+ case TEXTURE_MODE_16BPP:
+ texture_ptr = (u8 *)(psx_gpu->vram_ptr);
+ texture_ptr += (psx_gpu->current_texture_page & 0xF) * 128;
+ texture_ptr += ((psx_gpu->current_texture_page >> 4) * 256) * 2048;
+ texture_ptr += psx_gpu->texture_window_x * 2;
+ texture_ptr += (psx_gpu->texture_window_y) * 2048;
+ break;
+ }
+
+ psx_gpu->texture_page_ptr = texture_ptr;
+}
+
+void set_texture(psx_gpu_struct *psx_gpu, u32 texture_settings)
+{
+ if(psx_gpu->texture_settings != texture_settings)
+ {
+ u32 new_texture_page = texture_settings & 0x1F;
+ u32 texture_mode = (texture_settings >> 7) & 0x3;
+ u32 render_state_base = psx_gpu->render_state_base;
+
+ if(psx_gpu->current_texture_page != new_texture_page)
+ flush_render_block_buffer(psx_gpu);
+
+ render_state_base &= ~(0xF << 6);
+ render_state_base |= ((texture_settings >> 5) & 0xF) << 6;
+
+ psx_gpu->render_state_base = render_state_base;
+
+ psx_gpu->current_texture_mask = 0x1 << new_texture_page;
+
+ if(texture_mode == TEXTURE_MODE_8BPP)
+ {
+ // In 8bpp mode 256x256 takes up two pages. If it's on the right edge it
+ // wraps back around to the left edge.
+ u32 adjacent_texture_page = ((texture_settings + 1) & 0xF) | (texture_settings & 0x10);
+ psx_gpu->current_texture_mask |= 0x1 << adjacent_texture_page;
+
+ if((psx_gpu->last_8bpp_texture_page ^ new_texture_page) & 0x1)
+ {
+ u32 dirty_textures_8bpp_alternate_mask =
+ psx_gpu->dirty_textures_8bpp_alternate_mask;
+ psx_gpu->dirty_textures_8bpp_alternate_mask =
+ psx_gpu->dirty_textures_8bpp_mask;
+ psx_gpu->dirty_textures_8bpp_mask = dirty_textures_8bpp_alternate_mask;
+ }
+
+ psx_gpu->last_8bpp_texture_page = new_texture_page;
+ }
+
+ psx_gpu->current_texture_page = new_texture_page;
+ psx_gpu->texture_settings = texture_settings;
+
+ update_texture_ptr(psx_gpu);
+ }
+}
+
+void set_clut(psx_gpu_struct *psx_gpu, u32 clut_settings)
+{
+ if(psx_gpu->clut_settings != clut_settings)
+ {
+ flush_render_block_buffer(psx_gpu);
+ psx_gpu->clut_settings = clut_settings;
+ psx_gpu->clut_ptr = psx_gpu->vram_ptr + ((clut_settings & 0x7FFF) * 16);
+ }
+}
+
+void set_triangle_color(psx_gpu_struct *psx_gpu, u32 triangle_color)
+{
+ if(psx_gpu->triangle_color != triangle_color)
+ {
+ flush_render_block_buffer(psx_gpu);
+ psx_gpu->triangle_color = triangle_color;
+ }
+}
+
+#define sign_extend_12bit(value) \
+ (((s32)((value) << 20)) >> 20) \
+
+#define get_vertex_data_xy(vertex_number, offset16) \
+ vertexes[vertex_number].x = \
+ sign_extend_12bit(list_s16[offset16]) + psx_gpu->offset_x; \
+ vertexes[vertex_number].y = \
+ sign_extend_12bit(list_s16[(offset16) + 1]) + psx_gpu->offset_y; \
+
+#define get_vertex_data_uv(vertex_number, offset16) \
+ vertexes[vertex_number].u = list_s16[offset16] & 0xFF; \
+ vertexes[vertex_number].v = (list_s16[offset16] >> 8) & 0xFF \
+
+#define get_vertex_data_rgb(vertex_number, offset32) \
+ vertexes[vertex_number].r = list[offset32] & 0xFF; \
+ vertexes[vertex_number].g = (list[offset32] >> 8) & 0xFF; \
+ vertexes[vertex_number].b = (list[offset32] >> 16) & 0xFF \
+
+#define get_vertex_data_xy_uv(vertex_number, offset16) \
+ get_vertex_data_xy(vertex_number, offset16); \
+ get_vertex_data_uv(vertex_number, (offset16) + 2) \
+
+#define get_vertex_data_xy_rgb(vertex_number, offset16) \
+ get_vertex_data_rgb(vertex_number, (offset16) / 2); \
+ get_vertex_data_xy(vertex_number, (offset16) + 2); \
+
+#define get_vertex_data_xy_uv_rgb(vertex_number, offset16) \
+ get_vertex_data_rgb(vertex_number, (offset16) / 2); \
+ get_vertex_data_xy(vertex_number, (offset16) + 2); \
+ get_vertex_data_uv(vertex_number, (offset16) + 4); \
+
+#define set_vertex_color_constant(vertex_number, color) \
+ vertexes[vertex_number].r = color & 0xFF; \
+ vertexes[vertex_number].g = (color >> 8) & 0xFF; \
+ vertexes[vertex_number].b = (color >> 16) & 0xFF \
+
+#define get_vertex_data_xy_rgb_constant(vertex_number, offset16, color) \
+ get_vertex_data_xy(vertex_number, offset16); \
+ set_vertex_color_constant(vertex_number, color) \
+
+vertex_struct vertexes[4] __attribute__((aligned(32)));
+
+void gpu_parse(psx_gpu_struct *psx_gpu, u32 *list, u32 size)
+{
+ u32 current_command, command_length;
+
+ u32 *list_end = list + (size / 4);
+
+ for(; list < list_end; list += 1 + command_length)
+ {
+ s16 *list_s16 = (void *)list;
+ current_command = *list >> 24;
+ command_length = command_lengths[current_command];
+
+ switch(current_command)
+ {
+ case 0x00:
+ break;
+
+ case 0x02:
+ render_block_fill(psx_gpu, list[0] & 0xFFFFFF, list_s16[2], list_s16[3],
+ list_s16[4] & 0x3FF, list_s16[5] & 0x3FF);
+ break;
+
+ case 0x20 ... 0x23:
+ {
+ set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
+
+ get_vertex_data_xy(0, 2);
+ get_vertex_data_xy(1, 4);
+ get_vertex_data_xy(2, 6);
+
+ render_triangle(psx_gpu, vertexes, current_command);
+ break;
+ }
+
+ case 0x24 ... 0x27:
+ {
+ set_clut(psx_gpu, list_s16[5]);
+ set_texture(psx_gpu, list_s16[9]);
+ set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
+
+ get_vertex_data_xy_uv(0, 2);
+ get_vertex_data_xy_uv(1, 6);
+ get_vertex_data_xy_uv(2, 10);
+
+ render_triangle(psx_gpu, vertexes, current_command);
+ break;
+ }
+
+ case 0x28 ... 0x2B:
+ {
+ set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
+
+ get_vertex_data_xy(0, 2);
+ get_vertex_data_xy(1, 4);
+ get_vertex_data_xy(2, 6);
+ get_vertex_data_xy(3, 8);
+
+ render_triangle(psx_gpu, vertexes, current_command);
+ render_triangle(psx_gpu, &(vertexes[1]), current_command);
+ break;
+ }
+
+ case 0x2C ... 0x2F:
+ {
+ set_clut(psx_gpu, list_s16[5]);
+ set_texture(psx_gpu, list_s16[9]);
+ set_triangle_color(psx_gpu, list[0] & 0xFFFFFF);
+
+ get_vertex_data_xy_uv(0, 2);
+ get_vertex_data_xy_uv(1, 6);
+ get_vertex_data_xy_uv(2, 10);
+ get_vertex_data_xy_uv(3, 14);
+
+ render_triangle(psx_gpu, vertexes, current_command);
+ render_triangle(psx_gpu, &(vertexes[1]), current_command);
+ break;
+ }
+
+ case 0x30 ... 0x33:
+ {
+ get_vertex_data_xy_rgb(0, 0);
+ get_vertex_data_xy_rgb(1, 4);
+ get_vertex_data_xy_rgb(2, 8);
+
+ render_triangle(psx_gpu, vertexes, current_command);
+ break;
+ }
+
+ case 0x34:
+ case 0x35:
+ case 0x36:
+ case 0x37:
+ {
+ set_clut(psx_gpu, list_s16[5]);
+ set_texture(psx_gpu, list_s16[11]);
+
+ get_vertex_data_xy_uv_rgb(0, 0);
+ get_vertex_data_xy_uv_rgb(1, 6);
+ get_vertex_data_xy_uv_rgb(2, 12);
+
+ render_triangle(psx_gpu, vertexes, current_command);
+ break;
+ }
+
+ case 0x38:
+ case 0x39:
+ case 0x3A:
+ case 0x3B:
+ {
+ get_vertex_data_xy_rgb(0, 0);
+ get_vertex_data_xy_rgb(1, 4);
+ get_vertex_data_xy_rgb(2, 8);
+ get_vertex_data_xy_rgb(3, 12);
+
+ render_triangle(psx_gpu, vertexes, current_command);
+ render_triangle(psx_gpu, &(vertexes[1]), current_command);
+ break;
+ }
+
+ case 0x3C:
+ case 0x3D:
+ case 0x3E:
+ case 0x3F:
+ {
+ set_clut(psx_gpu, list_s16[5]);
+ set_texture(psx_gpu, list_s16[11]);
+
+ get_vertex_data_xy_uv_rgb(0, 0);
+ get_vertex_data_xy_uv_rgb(1, 6);
+ get_vertex_data_xy_uv_rgb(2, 12);
+ get_vertex_data_xy_uv_rgb(3, 18);
+
+ render_triangle(psx_gpu, vertexes, current_command);
+ render_triangle(psx_gpu, &(vertexes[1]), current_command);
+ break;
+ }
+
+ case 0x40 ... 0x47:
+ {
+ vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
+ vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
+ vertexes[1].x = list_s16[4] + psx_gpu->offset_x;
+ vertexes[1].y = list_s16[5] + psx_gpu->offset_y;
+
+ render_line(psx_gpu, vertexes, current_command, list[0]);
+ break;
+ }
+
+ case 0x48 ... 0x4F:
+ {
+ u32 num_vertexes = 1;
+ u32 *list_position = &(list[2]);
+ u32 xy = list[1];
+
+ vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
+ vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
+
+ while(1)
+ {
+ xy = *list_position;
+ if(xy == 0x55555555)
+ break;
+
+ vertexes[0] = vertexes[1];
+
+ vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
+ vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
+
+ list_position++;
+ num_vertexes++;
+
+ render_line(psx_gpu, vertexes, current_command, list[0]);
+ }
+
+ if(num_vertexes > 2)
+ command_length += (num_vertexes - 2);
+
+ break;
+ }
+
+ case 0x50 ... 0x57:
+ {
+ vertexes[0].r = list[0] & 0xFF;
+ vertexes[0].g = (list[0] >> 8) & 0xFF;
+ vertexes[0].b = (list[0] >> 16) & 0xFF;
+ vertexes[0].x = list_s16[2] + psx_gpu->offset_x;
+ vertexes[0].y = list_s16[3] + psx_gpu->offset_y;
+
+ vertexes[1].r = list[2] & 0xFF;
+ vertexes[1].g = (list[2] >> 8) & 0xFF;
+ vertexes[1].b = (list[2] >> 16) & 0xFF;
+ vertexes[1].x = list_s16[6] + psx_gpu->offset_x;
+ vertexes[1].y = list_s16[7] + psx_gpu->offset_y;
+
+ render_line(psx_gpu, vertexes, current_command, 0);
+ break;
+ }
+
+ case 0x58 ... 0x5F:
+ {
+ u32 num_vertexes = 1;
+ u32 *list_position = &(list[2]);
+ u32 color = list[0];
+ u32 xy = list[1];
+
+ vertexes[1].r = color & 0xFF;
+ vertexes[1].g = (color >> 8) & 0xFF;
+ vertexes[1].b = (color >> 16) & 0xFF;
+ vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
+ vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
+
+ while(1)
+ {
+ color = list_position[0];
+ if(color == 0x55555555)
+ break;
+
+ xy = list_position[1];
+
+ vertexes[0] = vertexes[1];
+
+ vertexes[1].r = color & 0xFF;
+ vertexes[1].g = (color >> 8) & 0xFF;
+ vertexes[1].b = (color >> 16) & 0xFF;
+ vertexes[1].x = (xy & 0xFFFF) + psx_gpu->offset_x;
+ vertexes[1].y = (xy >> 16) + psx_gpu->offset_y;
+
+ list_position += 2;
+ num_vertexes++;
+
+ render_line(psx_gpu, vertexes, current_command, 0);
+ }
+
+ if(num_vertexes > 2)
+ command_length += ((num_vertexes * 2) - 2);
+
+ break;
+ }
+
+ case 0x60 ... 0x63:
+ {
+ u32 x = list_s16[2] + psx_gpu->offset_x;
+ u32 y = list_s16[3] + psx_gpu->offset_y;
+ u32 width = list_s16[4] & 0x3FF;
+ u32 height = list_s16[5] & 0x1FF;
+
+ psx_gpu->primitive_color = list[0] & 0xFFFFFF;
+
+ render_sprite(psx_gpu, x, y, 0, 0, width, height, current_command, list[0]);
+ break;
+ }
+
+ case 0x64 ... 0x67:
+ {
+ u32 x = list_s16[2] + psx_gpu->offset_x;
+ u32 y = list_s16[3] + psx_gpu->offset_y;
+ u32 uv = list_s16[4];
+ u32 width = list_s16[6] & 0x3FF;
+ u32 height = list_s16[7] & 0x1FF;
+
+ psx_gpu->primitive_color = list[0] & 0xFFFFFF;
+ set_clut(psx_gpu, list_s16[5]);
+
+ render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, width, height,
+ current_command, list[0]);
+ break;
+ }
+
+ case 0x68:
+ case 0x69:
+ case 0x6A:
+ case 0x6B:
+ {
+ s32 x = list_s16[2] + psx_gpu->offset_x;
+ s32 y = list_s16[3] + psx_gpu->offset_y;
+
+ psx_gpu->primitive_color = list[0] & 0xFFFFFF;
+
+ render_sprite(psx_gpu, x, y, 0, 0, 1, 1, current_command, list[0]);
+ break;
+ }
+
+ case 0x70:
+ case 0x71:
+ case 0x72:
+ case 0x73:
+ {
+ s32 x = list_s16[2] + psx_gpu->offset_x;
+ s32 y = list_s16[3] + psx_gpu->offset_y;
+
+ psx_gpu->primitive_color = list[0] & 0xFFFFFF;
+
+ render_sprite(psx_gpu, x, y, 0, 0, 8, 8, current_command, list[0]);
+ break;
+ }
+
+ case 0x74:
+ case 0x75:
+ case 0x76:
+ case 0x77:
+ {
+ s32 x = list_s16[2] + psx_gpu->offset_x;
+ s32 y = list_s16[3] + psx_gpu->offset_y;
+ u32 uv = list_s16[4];
+
+ psx_gpu->primitive_color = list[0] & 0xFFFFFF;
+ set_clut(psx_gpu, list_s16[5]);
+
+ render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, 8, 8,
+ current_command, list[0]);
+ break;
+ }
+
+ case 0x78:
+ case 0x79:
+ case 0x7A:
+ case 0x7B:
+ {
+ s32 x = list_s16[2] + psx_gpu->offset_x;
+ s32 y = list_s16[3] + psx_gpu->offset_y;
+
+ psx_gpu->primitive_color = list[0] & 0xFFFFFF;
+ render_sprite(psx_gpu, x, y, 0, 0, 16, 16, current_command, list[0]);
+ break;
+ }
+
+ case 0x7C:
+ case 0x7D:
+ case 0x7E:
+ case 0x7F:
+ {
+ s32 x = list_s16[2] + psx_gpu->offset_x;
+ s32 y = list_s16[3] + psx_gpu->offset_y;
+ u32 uv = list_s16[4];
+
+ psx_gpu->primitive_color = list[0] & 0xFFFFFF;
+ set_clut(psx_gpu, list_s16[5]);
+
+ render_sprite(psx_gpu, x, y, uv & 0xFF, (uv >> 8) & 0xFF, 16, 16,
+ current_command, list[0]);
+ break;
+ }
+
+ case 0x80: // vid -> vid
+ render_block_move(psx_gpu, list_s16[2] & 0x3FF, list_s16[3] & 0x1FF,
+ list_s16[4] & 0x3FF, list_s16[5] & 0x1FF, list_s16[6], list_s16[7]);
+ break;
+
+ case 0xA0: // sys -> vid
+ {
+ u32 load_x = list_s16[2];
+ u32 load_y = list_s16[3];
+ u32 load_width = list_s16[4];
+ u32 load_height = list_s16[5];
+ u32 load_size = load_width * load_height;
+
+ command_length += load_size / 2;
+
+ render_block_copy(psx_gpu, (u16 *)&(list_s16[6]), load_x, load_y,
+ load_width, load_height, load_width);
+ break;
+ }
+
+ case 0xC0: // vid -> sys
+ break;
+
+ case 0xE1:
+ set_texture(psx_gpu, list[0] & 0x1FF);
+ if(list[0] & (1 << 9))
+ psx_gpu->render_state_base |= RENDER_STATE_DITHER;
+ else
+ psx_gpu->render_state_base &= ~RENDER_STATE_DITHER;
+
+ psx_gpu->display_area_draw_enable = (list[0] >> 10) & 0x1;
+ break;
+
+ case 0xE2:
+ {
+ // TODO: Clean
+ u32 texture_window_settings = list[0];
+ u32 tmp, x, y, w, h;
+
+ if(texture_window_settings != psx_gpu->texture_window_settings)
+ {
+ tmp = (texture_window_settings & 0x1F) | 0x20;
+ for(w = 8; (tmp & 1) == 0; tmp >>= 1, w <<= 1);
+
+ tmp = ((texture_window_settings >> 5) & 0x1f) | 0x20;
+ for (h = 8; (tmp & 1) == 0; tmp >>= 1, h <<= 1);
+
+ tmp = 32 - (w >> 3);
+ x = ((texture_window_settings >> 10) & tmp) << 3;
+
+ tmp = 32 - (h >> 3);
+ y = ((texture_window_settings >> 15) & tmp) << 3;
+
+ flush_render_block_buffer(psx_gpu);
+
+ psx_gpu->texture_window_x = x;
+ psx_gpu->texture_window_y = y;
+ psx_gpu->texture_mask_width = w - 1;
+ psx_gpu->texture_mask_height = h - 1;
+
+ update_texture_ptr(psx_gpu);
+ }
+ break;
+ }
+
+ case 0xE3:
+ psx_gpu->viewport_start_x = list[0] & 0x3FF;
+ psx_gpu->viewport_start_y = (list[0] >> 10) & 0x1FF;
+
+#ifdef TEXTURE_CACHE_4BPP
+ psx_gpu->viewport_mask =
+ texture_region_mask(psx_gpu->viewport_start_x,
+ psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
+ psx_gpu->viewport_end_y);
+#endif
+ break;
+
+ case 0xE4:
+ psx_gpu->viewport_end_x = list[0] & 0x3FF;
+ psx_gpu->viewport_end_y = (list[0] >> 10) & 0x1FF;
+
+#ifdef TEXTURE_CACHE_4BPP
+ psx_gpu->viewport_mask =
+ texture_region_mask(psx_gpu->viewport_start_x,
+ psx_gpu->viewport_start_y, psx_gpu->viewport_end_x,
+ psx_gpu->viewport_end_y);
+#endif
+ break;
+
+ case 0xE5:
+ {
+ s32 offset_x = list[0] << 21;
+ s32 offset_y = list[0] << 10;
+ psx_gpu->offset_x = offset_x >> 21;
+ psx_gpu->offset_y = offset_y >> 21;
+
+ break;
+ }
+
+ case 0xE6:
+ {
+ u32 mask_settings = list[0];
+ u16 mask_msb = mask_settings << 15;
+
+ if(list[0] & 0x2)
+ psx_gpu->render_state_base |= RENDER_STATE_MASK_EVALUATE;
+ else
+ psx_gpu->render_state_base &= ~RENDER_STATE_MASK_EVALUATE;
+
+ if(mask_msb != psx_gpu->mask_msb)
+ {
+ flush_render_block_buffer(psx_gpu);
+ psx_gpu->mask_msb = mask_msb;
+ }
+
+ break;
+ }
+
+ default:
+ break;
+ }
+ }
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 23:02:43 +0000