280 lines
12 KiB
C
280 lines
12 KiB
C
/******************************************************************************
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Copyright (C) 2013 by Hugh Bailey <obs.jim@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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#pragma once
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#include "../util/threading.h"
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#include "../util/darray.h"
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#include "graphics.h"
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#include "matrix3.h"
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#include "matrix4.h"
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struct gs_exports {
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const char *(*device_get_name)(void);
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int (*device_get_type)(void);
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const char *(*device_preprocessor_name)(void);
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int (*device_create)(gs_device_t **device,
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const struct gs_init_data *data);
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void (*device_destroy)(gs_device_t *device);
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void (*device_enter_context)(gs_device_t *device);
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void (*device_leave_context)(gs_device_t *device);
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gs_swapchain_t *(*device_swapchain_create)(gs_device_t *device,
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const struct gs_init_data *data);
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void (*device_resize)(gs_device_t *device, uint32_t x, uint32_t y);
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void (*device_get_size)(const gs_device_t *device,
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uint32_t *x, uint32_t *y);
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uint32_t (*device_get_width)(const gs_device_t *device);
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uint32_t (*device_get_height)(const gs_device_t *device);
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gs_texture_t *(*device_texture_create)(gs_device_t *device,
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uint32_t width, uint32_t height,
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enum gs_color_format color_format, uint32_t levels,
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const uint8_t **data, uint32_t flags);
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gs_texture_t *(*device_cubetexture_create)(gs_device_t *device,
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uint32_t size, enum gs_color_format color_format,
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uint32_t levels, const uint8_t **data, uint32_t flags);
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gs_texture_t *(*device_voltexture_create)(gs_device_t *device,
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uint32_t width, uint32_t height, uint32_t depth,
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enum gs_color_format color_format, uint32_t levels,
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const uint8_t **data, uint32_t flags);
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gs_zstencil_t *(*device_zstencil_create)(gs_device_t *device,
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uint32_t width, uint32_t height,
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enum gs_zstencil_format format);
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gs_stagesurf_t *(*device_stagesurface_create)(gs_device_t *device,
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uint32_t width, uint32_t height,
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enum gs_color_format color_format);
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gs_samplerstate_t *(*device_samplerstate_create)(gs_device_t *device,
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const struct gs_sampler_info *info);
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gs_shader_t *(*device_vertexshader_create)(gs_device_t *device,
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const char *shader, const char *file,
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char **error_string);
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gs_shader_t *(*device_pixelshader_create)(gs_device_t *device,
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const char *shader, const char *file,
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char **error_string);
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gs_vertbuffer_t *(*device_vertexbuffer_create)(gs_device_t *device,
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struct gs_vb_data *data, uint32_t flags);
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gs_indexbuffer_t *(*device_indexbuffer_create)(gs_device_t *device,
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enum gs_index_type type, void *indices, size_t num,
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uint32_t flags);
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enum gs_texture_type (*device_get_texture_type)(
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const gs_texture_t *texture);
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void (*device_load_vertexbuffer)(gs_device_t *device,
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gs_vertbuffer_t *vertbuffer);
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void (*device_load_indexbuffer)(gs_device_t *device,
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gs_indexbuffer_t *indexbuffer);
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void (*device_load_texture)(gs_device_t *device, gs_texture_t *tex,
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int unit);
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void (*device_load_samplerstate)(gs_device_t *device,
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gs_samplerstate_t *samplerstate, int unit);
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void (*device_load_vertexshader)(gs_device_t *device,
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gs_shader_t *vertshader);
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void (*device_load_pixelshader)(gs_device_t *device,
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gs_shader_t *pixelshader);
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void (*device_load_default_samplerstate)(gs_device_t *device,
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bool b_3d, int unit);
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gs_shader_t *(*device_get_vertex_shader)(const gs_device_t *device);
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gs_shader_t *(*device_get_pixel_shader)(const gs_device_t *device);
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gs_texture_t *(*device_get_render_target)(const gs_device_t *device);
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gs_zstencil_t *(*device_get_zstencil_target)(const gs_device_t *device);
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void (*device_set_render_target)(gs_device_t *device, gs_texture_t *tex,
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gs_zstencil_t *zstencil);
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void (*device_set_cube_render_target)(gs_device_t *device,
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gs_texture_t *cubetex, int side, gs_zstencil_t *zstencil);
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void (*device_copy_texture)(gs_device_t *device, gs_texture_t *dst,
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gs_texture_t *src);
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void (*device_copy_texture_region)(gs_device_t *device,
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gs_texture_t *dst, uint32_t dst_x, uint32_t dst_y,
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gs_texture_t *src, uint32_t src_x, uint32_t src_y,
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uint32_t src_w, uint32_t src_h);
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void (*device_stage_texture)(gs_device_t *device, gs_stagesurf_t *dst,
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gs_texture_t *src);
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void (*device_begin_scene)(gs_device_t *device);
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void (*device_draw)(gs_device_t *device, enum gs_draw_mode draw_mode,
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uint32_t start_vert, uint32_t num_verts);
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void (*device_end_scene)(gs_device_t *device);
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void (*device_load_swapchain)(gs_device_t *device,
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gs_swapchain_t *swaphchain);
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void (*device_clear)(gs_device_t *device, uint32_t clear_flags,
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const struct vec4 *color, float depth, uint8_t stencil);
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void (*device_present)(gs_device_t *device);
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void (*device_flush)(gs_device_t *device);
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void (*device_set_cull_mode)(gs_device_t *device,
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enum gs_cull_mode mode);
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enum gs_cull_mode (*device_get_cull_mode)(const gs_device_t *device);
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void (*device_enable_blending)(gs_device_t *device, bool enable);
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void (*device_enable_depth_test)(gs_device_t *device, bool enable);
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void (*device_enable_stencil_test)(gs_device_t *device, bool enable);
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void (*device_enable_stencil_write)(gs_device_t *device, bool enable);
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void (*device_enable_color)(gs_device_t *device, bool red, bool green,
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bool blue, bool alpha);
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void (*device_blend_function)(gs_device_t *device,
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enum gs_blend_type src, enum gs_blend_type dest);
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void (*device_depth_function)(gs_device_t *device,
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enum gs_depth_test test);
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void (*device_stencil_function)(gs_device_t *device,
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enum gs_stencil_side side, enum gs_depth_test test);
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void (*device_stencil_op)(gs_device_t *device,
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enum gs_stencil_side side,
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enum gs_stencil_op_type fail,
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enum gs_stencil_op_type zfail,
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enum gs_stencil_op_type zpass);
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void (*device_set_viewport)(gs_device_t *device, int x, int y,
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int width, int height);
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void (*device_get_viewport)(const gs_device_t *device,
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struct gs_rect *rect);
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void (*device_set_scissor_rect)(gs_device_t *device,
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const struct gs_rect *rect);
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void (*device_ortho)(gs_device_t *device, float left, float right,
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float top, float bottom, float znear, float zfar);
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void (*device_frustum)(gs_device_t *device, float left, float right,
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float top, float bottom, float znear, float zfar);
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void (*device_projection_push)(gs_device_t *device);
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void (*device_projection_pop)(gs_device_t *device);
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void (*gs_swapchain_destroy)(gs_swapchain_t *swapchain);
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void (*gs_texture_destroy)(gs_texture_t *tex);
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uint32_t (*gs_texture_get_width)(const gs_texture_t *tex);
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uint32_t (*gs_texture_get_height)(const gs_texture_t *tex);
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enum gs_color_format (*gs_texture_get_color_format)(
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const gs_texture_t *tex);
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bool (*gs_texture_map)(gs_texture_t *tex, uint8_t **ptr,
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uint32_t *linesize);
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void (*gs_texture_unmap)(gs_texture_t *tex);
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bool (*gs_texture_is_rect)(const gs_texture_t *tex);
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void *(*gs_texture_get_obj)(const gs_texture_t *tex);
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void (*gs_cubetexture_destroy)(gs_texture_t *cubetex);
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uint32_t (*gs_cubetexture_get_size)(const gs_texture_t *cubetex);
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enum gs_color_format (*gs_cubetexture_get_color_format)(
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const gs_texture_t *cubetex);
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void (*gs_voltexture_destroy)(gs_texture_t *voltex);
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uint32_t (*gs_voltexture_get_width)(const gs_texture_t *voltex);
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uint32_t (*gs_voltexture_get_height)(const gs_texture_t *voltex);
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uint32_t (*gs_voltexture_getdepth)(const gs_texture_t *voltex);
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enum gs_color_format (*gs_voltexture_get_color_format)(
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const gs_texture_t *voltex);
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void (*gs_stagesurface_destroy)(gs_stagesurf_t *stagesurf);
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uint32_t (*gs_stagesurface_get_width)(const gs_stagesurf_t *stagesurf);
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uint32_t (*gs_stagesurface_get_height)(const gs_stagesurf_t *stagesurf);
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enum gs_color_format (*gs_stagesurface_get_color_format)(
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const gs_stagesurf_t *stagesurf);
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bool (*gs_stagesurface_map)(gs_stagesurf_t *stagesurf,
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uint8_t **data, uint32_t *linesize);
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void (*gs_stagesurface_unmap)(gs_stagesurf_t *stagesurf);
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void (*gs_zstencil_destroy)(gs_zstencil_t *zstencil);
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void (*gs_samplerstate_destroy)(gs_samplerstate_t *samplerstate);
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void (*gs_vertexbuffer_destroy)(gs_vertbuffer_t *vertbuffer);
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void (*gs_vertexbuffer_flush)(gs_vertbuffer_t *vertbuffer);
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struct gs_vb_data *(*gs_vertexbuffer_get_data)(
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const gs_vertbuffer_t *vertbuffer);
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void (*gs_indexbuffer_destroy)(gs_indexbuffer_t *indexbuffer);
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void (*gs_indexbuffer_flush)(gs_indexbuffer_t *indexbuffer);
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void *(*gs_indexbuffer_get_data)(const gs_indexbuffer_t *indexbuffer);
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size_t (*gs_indexbuffer_get_num_indices)(
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const gs_indexbuffer_t *indexbuffer);
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enum gs_index_type (*gs_indexbuffer_get_type)(
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const gs_indexbuffer_t *indexbuffer);
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void (*gs_shader_destroy)(gs_shader_t *shader);
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int (*gs_shader_get_num_params)(const gs_shader_t *shader);
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gs_sparam_t *(*gs_shader_get_param_by_idx)(gs_shader_t *shader,
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uint32_t param);
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gs_sparam_t *(*gs_shader_get_param_by_name)(gs_shader_t *shader,
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const char *name);
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gs_sparam_t *(*gs_shader_get_viewproj_matrix)(
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const gs_shader_t *shader);
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gs_sparam_t *(*gs_shader_get_world_matrix)(const gs_shader_t *shader);
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void (*gs_shader_get_param_info)(const gs_sparam_t *param,
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struct gs_shader_param_info *info);
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void (*gs_shader_set_bool)(gs_sparam_t *param, bool val);
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void (*gs_shader_set_float)(gs_sparam_t *param, float val);
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void (*gs_shader_set_int)(gs_sparam_t *param, int val);
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void (*gs_shader_setmatrix3)(gs_sparam_t *param,
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const struct matrix3 *val);
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void (*gs_shader_set_matrix4)(gs_sparam_t *param,
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const struct matrix4 *val);
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void (*gs_shader_set_vec2)(gs_sparam_t *param, const struct vec2 *val);
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void (*gs_shader_set_vec3)(gs_sparam_t *param, const struct vec3 *val);
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void (*gs_shader_set_vec4)(gs_sparam_t *param, const struct vec4 *val);
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void (*gs_shader_set_texture)(gs_sparam_t *param, gs_texture_t *val);
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void (*gs_shader_set_val)(gs_sparam_t *param, const void *val,
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size_t size);
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void (*gs_shader_set_default)(gs_sparam_t *param);
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#ifdef __APPLE__
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/* OSX/Cocoa specific functions */
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gs_texture_t *(*device_texture_create_from_iosurface)(gs_device_t *dev,
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void *iosurf);
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bool (*gs_texture_rebind_iosurface)(gs_texture_t *texture,
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void *iosurf);
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#elif _WIN32
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bool (*device_gdi_texture_available)(void);
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bool (*device_shared_texture_available)(void);
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gs_texture_t *(*device_texture_create_gdi)(gs_device_t *device,
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uint32_t width, uint32_t height);
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void *(*gs_texture_get_dc)(gs_texture_t *gdi_tex);
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void (*gs_texture_release_dc)(gs_texture_t *gdi_tex);
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gs_texture_t *(*device_texture_open_shared)(gs_device_t *device,
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uint32_t handle);
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#endif
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};
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struct blend_state {
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bool enabled;
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enum gs_blend_type src;
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enum gs_blend_type dest;
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};
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struct graphics_subsystem {
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void *module;
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gs_device_t *device;
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struct gs_exports exports;
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DARRAY(struct gs_rect) viewport_stack;
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DARRAY(struct matrix4) matrix_stack;
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size_t cur_matrix;
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struct matrix4 projection;
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struct gs_effect *cur_effect;
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gs_vertbuffer_t *sprite_buffer;
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bool using_immediate;
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struct gs_vb_data *vbd;
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gs_vertbuffer_t *immediate_vertbuffer;
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DARRAY(struct vec3) verts;
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DARRAY(struct vec3) norms;
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DARRAY(uint32_t) colors;
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DARRAY(struct vec2) texverts[16];
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pthread_mutex_t mutex;
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volatile long ref;
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struct blend_state cur_blend_state;
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};
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