c9df41c1e2
Typedef pointers are unsafe. If you do: typedef struct bla *bla_t; then you cannot use it as a constant, such as: const bla_t, because that constant will be to the pointer itself rather than to the underlying data. I admit this was a fundamental mistake that must be corrected. All typedefs that were pointer types will now have their pointers removed from the type itself, and the pointers will be used when they are actually used as variables/parameters/returns instead. This does not break ABI though, which is pretty nice.
268 lines
11 KiB
C
268 lines
11 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, 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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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)(gs_device_t *device, uint32_t *x, uint32_t *y);
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uint32_t (*device_get_width)(gs_device_t *device);
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uint32_t (*device_get_height)(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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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)(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)(gs_device_t *device);
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gs_shader_t *(*device_get_pixel_shader)(gs_device_t *device);
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gs_texture_t *(*device_get_render_target)(gs_device_t *device);
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gs_zstencil_t *(*device_get_zstencil_target)(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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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)(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)(gs_device_t *device, struct gs_rect *rect);
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void (*device_set_scissor_rect)(gs_device_t *device,
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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)(gs_texture_t *tex);
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uint32_t (*gs_texture_get_height)(gs_texture_t *tex);
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enum gs_color_format (*gs_texture_get_color_format)(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)(gs_texture_t *tex);
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void *(*gs_texture_get_obj)(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)(gs_texture_t *cubetex);
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enum gs_color_format (*gs_cubetexture_get_color_format)(
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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)(gs_texture_t *voltex);
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uint32_t (*gs_voltexture_get_height)(gs_texture_t *voltex);
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uint32_t (*gs_voltexture_getdepth)(gs_texture_t *voltex);
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enum gs_color_format (*gs_voltexture_get_color_format)(
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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)(gs_stagesurf_t *stagesurf);
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uint32_t (*gs_stagesurface_get_height)(gs_stagesurf_t *stagesurf);
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enum gs_color_format (*gs_stagesurface_get_color_format)(
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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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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)(gs_indexbuffer_t *indexbuffer);
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size_t (*gs_indexbuffer_get_num_indices)(gs_indexbuffer_t *indexbuffer);
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enum gs_index_type (*gs_indexbuffer_get_type)(
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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)(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)(gs_shader_t *shader);
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gs_sparam_t *(*gs_shader_get_world_matrix)(gs_shader_t *shader);
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void (*gs_shader_get_param_info)(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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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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#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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