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obs-studio/libobs/graphics/graphics-imports.c
jp9000 be52fa26f9 Add gs_blend_function_separate 
This allows the ability to separate the blend states of color and alpha.

The default blend state has also changed so that alpha is always added
together to ensure that the destination image always gets an alpha value
that is actually usable after the operation (for render targets).

Old default state:
  color source: GS_BLEND_SRCALPHA, color dest: GS_BLEND_INVSRCALPHA
  alpha source: GS_BLEND_SRCALPHA, alpha dest: GS_BLEND_INVSRCALPHA

New default state:
  color source: GS_BLEND_SRCALPHA, color dest: GS_BLEND_INVSRCALPHA
  alpha source: GS_BLEND_ONE,      alpha dest: GS_BLEND_ONE
2015-03-27 11:18:02 -07:00

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/******************************************************************************
Copyright (C) 2013 by Hugh Bailey <obs.jim@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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
#include "../util/base.h"
#include "../util/dstr.h"
#include "../util/platform.h"
#include "graphics-internal.h"
#define GRAPHICS_IMPORT(func) \
do { \
exports->func = os_dlsym(module, #func); \
if (!exports->func) { \
success = false; \
blog(LOG_ERROR, "Could not load function '%s' from " \
"module '%s'", #func, module_name); \
} \
} while (false)
#define GRAPHICS_IMPORT_OPTIONAL(func) \
do { \
exports->func = os_dlsym(module, #func); \
} while (false)
bool load_graphics_imports(struct gs_exports *exports, void *module,
const char *module_name)
{
bool success = true;
GRAPHICS_IMPORT(device_get_name);
GRAPHICS_IMPORT(device_get_type);
GRAPHICS_IMPORT_OPTIONAL(device_enum_adapters);
GRAPHICS_IMPORT(device_preprocessor_name);
GRAPHICS_IMPORT(device_create);
GRAPHICS_IMPORT(device_destroy);
GRAPHICS_IMPORT(device_enter_context);
GRAPHICS_IMPORT(device_leave_context);
GRAPHICS_IMPORT(device_swapchain_create);
GRAPHICS_IMPORT(device_resize);
GRAPHICS_IMPORT(device_get_size);
GRAPHICS_IMPORT(device_get_width);
GRAPHICS_IMPORT(device_get_height);
GRAPHICS_IMPORT(device_texture_create);
GRAPHICS_IMPORT(device_cubetexture_create);
GRAPHICS_IMPORT(device_voltexture_create);
GRAPHICS_IMPORT(device_zstencil_create);
GRAPHICS_IMPORT(device_stagesurface_create);
GRAPHICS_IMPORT(device_samplerstate_create);
GRAPHICS_IMPORT(device_vertexshader_create);
GRAPHICS_IMPORT(device_pixelshader_create);
GRAPHICS_IMPORT(device_vertexbuffer_create);
GRAPHICS_IMPORT(device_indexbuffer_create);
GRAPHICS_IMPORT(device_get_texture_type);
GRAPHICS_IMPORT(device_load_vertexbuffer);
GRAPHICS_IMPORT(device_load_indexbuffer);
GRAPHICS_IMPORT(device_load_texture);
GRAPHICS_IMPORT(device_load_samplerstate);
GRAPHICS_IMPORT(device_load_vertexshader);
GRAPHICS_IMPORT(device_load_pixelshader);
GRAPHICS_IMPORT(device_load_default_samplerstate);
GRAPHICS_IMPORT(device_get_vertex_shader);
GRAPHICS_IMPORT(device_get_pixel_shader);
GRAPHICS_IMPORT(device_get_render_target);
GRAPHICS_IMPORT(device_get_zstencil_target);
GRAPHICS_IMPORT(device_set_render_target);
GRAPHICS_IMPORT(device_set_cube_render_target);
GRAPHICS_IMPORT(device_copy_texture_region);
GRAPHICS_IMPORT(device_copy_texture);
GRAPHICS_IMPORT(device_stage_texture);
GRAPHICS_IMPORT(device_begin_scene);
GRAPHICS_IMPORT(device_draw);
GRAPHICS_IMPORT(device_load_swapchain);
GRAPHICS_IMPORT(device_end_scene);
GRAPHICS_IMPORT(device_clear);
GRAPHICS_IMPORT(device_present);
GRAPHICS_IMPORT(device_flush);
GRAPHICS_IMPORT(device_set_cull_mode);
GRAPHICS_IMPORT(device_get_cull_mode);
GRAPHICS_IMPORT(device_enable_blending);
GRAPHICS_IMPORT(device_enable_depth_test);
GRAPHICS_IMPORT(device_enable_stencil_test);
GRAPHICS_IMPORT(device_enable_stencil_write);
GRAPHICS_IMPORT(device_enable_color);
GRAPHICS_IMPORT(device_blend_function);
GRAPHICS_IMPORT(device_blend_function_separate);
GRAPHICS_IMPORT(device_depth_function);
GRAPHICS_IMPORT(device_stencil_function);
GRAPHICS_IMPORT(device_stencil_op);
GRAPHICS_IMPORT(device_set_viewport);
GRAPHICS_IMPORT(device_get_viewport);
GRAPHICS_IMPORT(device_set_scissor_rect);
GRAPHICS_IMPORT(device_ortho);
GRAPHICS_IMPORT(device_frustum);
GRAPHICS_IMPORT(device_projection_push);
GRAPHICS_IMPORT(device_projection_pop);
GRAPHICS_IMPORT(gs_swapchain_destroy);
GRAPHICS_IMPORT(gs_texture_destroy);
GRAPHICS_IMPORT(gs_texture_get_width);
GRAPHICS_IMPORT(gs_texture_get_height);
GRAPHICS_IMPORT(gs_texture_get_color_format);
GRAPHICS_IMPORT(gs_texture_map);
GRAPHICS_IMPORT(gs_texture_unmap);
GRAPHICS_IMPORT_OPTIONAL(gs_texture_is_rect);
GRAPHICS_IMPORT(gs_texture_get_obj);
GRAPHICS_IMPORT(gs_cubetexture_destroy);
GRAPHICS_IMPORT(gs_cubetexture_get_size);
GRAPHICS_IMPORT(gs_cubetexture_get_color_format);
GRAPHICS_IMPORT(gs_voltexture_destroy);
GRAPHICS_IMPORT(gs_voltexture_get_width);
GRAPHICS_IMPORT(gs_voltexture_get_height);
GRAPHICS_IMPORT(gs_voltexture_getdepth);
GRAPHICS_IMPORT(gs_voltexture_get_color_format);
GRAPHICS_IMPORT(gs_stagesurface_destroy);
GRAPHICS_IMPORT(gs_stagesurface_get_width);
GRAPHICS_IMPORT(gs_stagesurface_get_height);
GRAPHICS_IMPORT(gs_stagesurface_get_color_format);
GRAPHICS_IMPORT(gs_stagesurface_map);
GRAPHICS_IMPORT(gs_stagesurface_unmap);
GRAPHICS_IMPORT(gs_zstencil_destroy);
GRAPHICS_IMPORT(gs_samplerstate_destroy);
GRAPHICS_IMPORT(gs_vertexbuffer_destroy);
GRAPHICS_IMPORT(gs_vertexbuffer_flush);
GRAPHICS_IMPORT(gs_vertexbuffer_get_data);
GRAPHICS_IMPORT(gs_indexbuffer_destroy);
GRAPHICS_IMPORT(gs_indexbuffer_flush);
GRAPHICS_IMPORT(gs_indexbuffer_get_data);
GRAPHICS_IMPORT(gs_indexbuffer_get_num_indices);
GRAPHICS_IMPORT(gs_indexbuffer_get_type);
GRAPHICS_IMPORT(gs_shader_destroy);
GRAPHICS_IMPORT(gs_shader_get_num_params);
GRAPHICS_IMPORT(gs_shader_get_param_by_idx);
GRAPHICS_IMPORT(gs_shader_get_param_by_name);
GRAPHICS_IMPORT(gs_shader_get_viewproj_matrix);
GRAPHICS_IMPORT(gs_shader_get_world_matrix);
GRAPHICS_IMPORT(gs_shader_get_param_info);
GRAPHICS_IMPORT(gs_shader_set_bool);
GRAPHICS_IMPORT(gs_shader_set_float);
GRAPHICS_IMPORT(gs_shader_set_int);
GRAPHICS_IMPORT(gs_shader_setmatrix3);
GRAPHICS_IMPORT(gs_shader_set_matrix4);
GRAPHICS_IMPORT(gs_shader_set_vec2);
GRAPHICS_IMPORT(gs_shader_set_vec3);
GRAPHICS_IMPORT(gs_shader_set_vec4);
GRAPHICS_IMPORT(gs_shader_set_texture);
GRAPHICS_IMPORT(gs_shader_set_val);
GRAPHICS_IMPORT(gs_shader_set_default);
/* OSX/Cocoa specific functions */
#ifdef __APPLE__
GRAPHICS_IMPORT_OPTIONAL(device_texture_create_from_iosurface);
GRAPHICS_IMPORT_OPTIONAL(gs_texture_rebind_iosurface);
/* win32 specific functions */
#elif _WIN32
GRAPHICS_IMPORT(device_gdi_texture_available);
GRAPHICS_IMPORT(device_shared_texture_available);
GRAPHICS_IMPORT_OPTIONAL(device_get_duplicator_monitor_info);
GRAPHICS_IMPORT_OPTIONAL(device_duplicator_create);
GRAPHICS_IMPORT_OPTIONAL(gs_duplicator_destroy);
GRAPHICS_IMPORT_OPTIONAL(gs_duplicator_update_frame);
GRAPHICS_IMPORT_OPTIONAL(gs_duplicator_get_texture);
GRAPHICS_IMPORT_OPTIONAL(device_texture_create_gdi);
GRAPHICS_IMPORT_OPTIONAL(gs_texture_get_dc);
GRAPHICS_IMPORT_OPTIONAL(gs_texture_release_dc);
GRAPHICS_IMPORT_OPTIONAL(device_texture_open_shared);
#endif
return success;
}
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