mirror of
https://github.com/Xaymar/obs-StreamFX
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filter-transform: Formatting, refactoring and mipmapping
The '3D Transform' filter now support mipmapping using the Linear generator. This results in smoother images when the shape is squished or distant, instead of a pixelated mess.
This commit is contained in:
Michael Fabian 'Xaymar' Dirks
parent
7c520ae9ee
commit
dbe577e372
2 changed files with 176 additions and 148 deletions
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@ -24,9 +24,9 @@
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extern "C" {
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#pragma warning(push)
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#pragma warning(disable : 4201)
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#include "util/platform.h"
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#include "graphics/graphics.h"
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#include "graphics/matrix4.h"
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#include "util/platform.h"
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#pragma warning(pop)
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}
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@ -267,25 +267,22 @@ void Filter::Transform::video_render(void* ptr, gs_effect_t* effect)
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}
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Filter::Transform::Instance::Instance(obs_data_t* data, obs_source_t* context)
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: m_sourceContext(context), m_vertexHelper(nullptr), m_vertexBuffer(nullptr), m_texRender(nullptr),
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m_shapeRender(nullptr), m_isCameraOrthographic(true), m_cameraFieldOfView(90.0), m_isInactive(false),
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m_isHidden(false), m_isMeshUpdateRequired(false), m_rotationOrder(RotationOrder::ZXY)
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: source_context(context), is_orthographic(true), field_of_view(90.0), is_inactive(false), is_hidden(false),
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is_mesh_update_required(false), m_rotation_order(RotationOrder::ZXY)
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{
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m_position = std::make_unique<util::vec3a>();
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m_rotation = std::make_unique<util::vec3a>();
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m_scale = std::make_unique<util::vec3a>();
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m_shear = std::make_unique<util::vec3a>();
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position = std::make_unique<util::vec3a>();
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rotation = std::make_unique<util::vec3a>();
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scale = std::make_unique<util::vec3a>();
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shear = std::make_unique<util::vec3a>();
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vec3_set(m_position.get(), 0, 0, 0);
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vec3_set(m_rotation.get(), 0, 0, 0);
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vec3_set(m_scale.get(), 1, 1, 1);
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vec3_set(position.get(), 0, 0, 0);
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vec3_set(rotation.get(), 0, 0, 0);
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vec3_set(scale.get(), 1, 1, 1);
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obs_enter_graphics();
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m_texRender = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
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m_shapeRender = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
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m_vertexHelper = new gs::vertex_buffer(4);
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m_vertexHelper->set_uv_layers(1);
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m_vertexHelper->resize(4);
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source_rt = std::make_shared<gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
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shape_rt = std::make_shared<gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
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vertex_buffer = std::make_shared<gs::vertex_buffer>(4, 1);
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obs_leave_graphics();
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update(data);
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@ -294,33 +291,34 @@ Filter::Transform::Instance::Instance(obs_data_t* data, obs_source_t* context)
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Filter::Transform::Instance::~Instance()
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{
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obs_enter_graphics();
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delete m_vertexHelper;
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gs_texrender_destroy(m_texRender);
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gs_texrender_destroy(m_shapeRender);
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shape_rt.reset();
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source_rt.reset();
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vertex_buffer.reset();
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obs_leave_graphics();
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}
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void Filter::Transform::Instance::update(obs_data_t* data)
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{
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// Camera
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m_isCameraOrthographic = obs_data_get_int(data, ST_CAMERA) == 0;
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m_cameraFieldOfView = (float)obs_data_get_double(data, ST_CAMERA_FIELDOFVIEW);
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is_orthographic = obs_data_get_int(data, ST_CAMERA) == 0;
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field_of_view = (float)obs_data_get_double(data, ST_CAMERA_FIELDOFVIEW);
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// Source
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m_position->x = (float)obs_data_get_double(data, ST_POSITION_X) / 100.0f;
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m_position->y = (float)obs_data_get_double(data, ST_POSITION_Y) / 100.0f;
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m_position->z = (float)obs_data_get_double(data, ST_POSITION_Z) / 100.0f;
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m_scale->x = (float)obs_data_get_double(data, ST_SCALE_X) / 100.0f;
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m_scale->y = (float)obs_data_get_double(data, ST_SCALE_Y) / 100.0f;
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m_scale->z = 1.0f;
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m_rotationOrder = (int)obs_data_get_int(data, ST_ROTATION_ORDER);
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m_rotation->x = (float)(obs_data_get_double(data, ST_ROTATION_X) / 180.0f * PI);
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m_rotation->y = (float)(obs_data_get_double(data, ST_ROTATION_Y) / 180.0f * PI);
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m_rotation->z = (float)(obs_data_get_double(data, ST_ROTATION_Z) / 180.0f * PI);
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m_shear->x = (float)obs_data_get_double(data, ST_SHEAR_X) / 100.0f;
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m_shear->y = (float)obs_data_get_double(data, ST_SHEAR_Y) / 100.0f;
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m_shear->z = 0.0f;
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m_isMeshUpdateRequired = true;
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position->x = (float)obs_data_get_double(data, ST_POSITION_X) / 100.0f;
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position->y = (float)obs_data_get_double(data, ST_POSITION_Y) / 100.0f;
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position->z = (float)obs_data_get_double(data, ST_POSITION_Z) / 100.0f;
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scale->x = (float)obs_data_get_double(data, ST_SCALE_X) / 100.0f;
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scale->y = (float)obs_data_get_double(data, ST_SCALE_Y) / 100.0f;
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scale->z = 1.0f;
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m_rotation_order = (int)obs_data_get_int(data, ST_ROTATION_ORDER);
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rotation->x = (float)(obs_data_get_double(data, ST_ROTATION_X) / 180.0f * PI);
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rotation->y = (float)(obs_data_get_double(data, ST_ROTATION_Y) / 180.0f * PI);
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rotation->z = (float)(obs_data_get_double(data, ST_ROTATION_Z) / 180.0f * PI);
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shear->x = (float)obs_data_get_double(data, ST_SHEAR_X) / 100.0f;
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shear->y = (float)obs_data_get_double(data, ST_SHEAR_Y) / 100.0f;
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shear->z = 0.0f;
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is_mesh_update_required = true;
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}
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uint32_t Filter::Transform::Instance::get_width()
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@ -335,154 +333,176 @@ uint32_t Filter::Transform::Instance::get_height()
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void Filter::Transform::Instance::activate()
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{
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m_isInactive = false;
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is_inactive = false;
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}
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void Filter::Transform::Instance::deactivate()
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{
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m_isInactive = true;
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is_inactive = true;
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}
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void Filter::Transform::Instance::video_tick(float) {}
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void Filter::Transform::Instance::video_render(gs_effect_t* paramEffect)
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{
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obs_source_t* parent = obs_filter_get_parent(m_sourceContext);
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obs_source_t* target = obs_filter_get_target(m_sourceContext);
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uint32_t baseW = obs_source_get_base_width(target), baseH = obs_source_get_base_height(target);
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std::shared_ptr<gs::texture> source_tex;
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std::shared_ptr<gs::texture> shape_tex;
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obs_source_t* parent = obs_filter_get_parent(source_context);
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obs_source_t* target = obs_filter_get_target(source_context);
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uint32_t width = obs_source_get_base_width(target);
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uint32_t height = obs_source_get_base_height(target);
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gs_effect_t* default_effect = obs_get_base_effect(OBS_EFFECT_DEFAULT);
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// Skip rendering if our target, parent or context is not valid.
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if (!target || !parent || !m_sourceContext || !baseW || !baseH || !m_texRender || !m_shapeRender || m_isInactive
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|| m_isHidden) {
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obs_source_skip_video_filter(m_sourceContext);
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if (!target || !parent || !source_context || !width || !height || is_inactive || is_hidden) {
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obs_source_skip_video_filter(source_context);
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return;
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}
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gs_effect_t* alphaEffect = obs_get_base_effect(OBS_EFFECT_DEFAULT);
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// Draw previous filters to texture.
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gs_texrender_reset(m_texRender);
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if (!gs_texrender_begin(m_texRender, baseW, baseH)) {
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obs_source_skip_video_filter(m_sourceContext);
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return;
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}
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gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
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/// Set up the Scene
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vec4 black;
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vec4_zero(&black);
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gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &black, 0, 0);
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gs_set_cull_mode(GS_NEITHER);
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gs_reset_blend_state();
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gs_blend_function_separate(gs_blend_type::GS_BLEND_ONE, gs_blend_type::GS_BLEND_ZERO, gs_blend_type::GS_BLEND_ONE,
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gs_blend_type::GS_BLEND_ZERO);
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gs_enable_depth_test(false);
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gs_enable_stencil_test(false);
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gs_enable_stencil_write(false);
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gs_enable_color(true, true, true, true);
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/// Render original source
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if (obs_source_process_filter_begin(m_sourceContext, GS_RGBA, OBS_NO_DIRECT_RENDERING)) {
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obs_source_process_filter_end(m_sourceContext, paramEffect ? paramEffect : alphaEffect, baseW, baseH);
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} else {
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obs_source_skip_video_filter(m_sourceContext);
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}
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gs_texrender_end(m_texRender);
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gs_texture* filterTexture = gs_texrender_get_texture(m_texRender);
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// Update Mesh
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if (m_isMeshUpdateRequired) {
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float_t aspectRatioX = float_t(baseW) / float_t(baseH);
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if (m_isCameraOrthographic)
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if (is_mesh_update_required) {
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float_t aspectRatioX = float_t(width) / float_t(height);
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if (is_orthographic)
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aspectRatioX = 1.0;
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// Mesh
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matrix4 ident;
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matrix4_identity(&ident);
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switch (m_rotationOrder) {
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switch (m_rotation_order) {
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case RotationOrder::XYZ: // XYZ
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, m_rotation->x);
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, m_rotation->y);
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, m_rotation->z);
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, rotation->x);
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, rotation->y);
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, rotation->z);
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break;
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case RotationOrder::XZY: // XZY
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, m_rotation->x);
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, m_rotation->z);
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, m_rotation->y);
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, rotation->x);
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, rotation->z);
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, rotation->y);
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break;
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case RotationOrder::YXZ: // YXZ
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, m_rotation->y);
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, m_rotation->x);
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, m_rotation->z);
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, rotation->y);
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, rotation->x);
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, rotation->z);
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break;
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case RotationOrder::YZX: // YZX
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, m_rotation->y);
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, m_rotation->z);
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, m_rotation->x);
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, rotation->y);
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, rotation->z);
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, rotation->x);
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break;
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case RotationOrder::ZXY: // ZXY
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, m_rotation->z);
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, m_rotation->x);
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, m_rotation->y);
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, rotation->z);
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, rotation->x);
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, rotation->y);
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break;
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case RotationOrder::ZYX: // ZYX
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, m_rotation->z);
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, m_rotation->y);
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, m_rotation->x);
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matrix4_rotate_aa4f(&ident, &ident, 0, 0, 1, rotation->z);
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matrix4_rotate_aa4f(&ident, &ident, 0, 1, 0, rotation->y);
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matrix4_rotate_aa4f(&ident, &ident, 1, 0, 0, rotation->x);
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break;
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}
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matrix4_translate3f(&ident, &ident, m_position->x, m_position->y, m_position->z);
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matrix4_translate3f(&ident, &ident, position->x, position->y, position->z);
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/// Calculate vertex position once only.
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float_t p_x = aspectRatioX * m_scale->x;
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float_t p_y = 1.0f * m_scale->y;
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float_t p_x = aspectRatioX * scale->x;
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float_t p_y = 1.0f * scale->y;
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/// Generate mesh
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{
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gs::vertex vtx = m_vertexHelper->at(0);
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auto vtx = vertex_buffer->at(0);
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*vtx.color = 0xFFFFFFFF;
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vec4_set(vtx.uv[0], 0, 0, 0, 0);
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vec3_set(vtx.position, -p_x + m_shear->x, -p_y - m_shear->y, 0);
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vec3_set(vtx.position, -p_x + shear->x, -p_y - shear->y, 0);
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vec3_transform(vtx.position, vtx.position, &ident);
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}
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{
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gs::vertex vtx = m_vertexHelper->at(1);
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auto vtx = vertex_buffer->at(1);
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*vtx.color = 0xFFFFFFFF;
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vec4_set(vtx.uv[0], 1, 0, 0, 0);
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vec3_set(vtx.position, p_x + m_shear->x, -p_y + m_shear->y, 0);
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vec3_set(vtx.position, p_x + shear->x, -p_y + shear->y, 0);
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vec3_transform(vtx.position, vtx.position, &ident);
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}
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{
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gs::vertex vtx = m_vertexHelper->at(2);
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auto vtx = vertex_buffer->at(2);
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*vtx.color = 0xFFFFFFFF;
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vec4_set(vtx.uv[0], 0, 1, 0, 0);
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vec3_set(vtx.position, -p_x - m_shear->x, p_y - m_shear->y, 0);
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vec3_set(vtx.position, -p_x - shear->x, p_y - shear->y, 0);
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vec3_transform(vtx.position, vtx.position, &ident);
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}
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{
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gs::vertex vtx = m_vertexHelper->at(3);
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auto vtx = vertex_buffer->at(3);
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*vtx.color = 0xFFFFFFFF;
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vec4_set(vtx.uv[0], 1, 1, 0, 0);
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vec3_set(vtx.position, p_x - m_shear->x, p_y + m_shear->y, 0);
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vec3_set(vtx.position, p_x - shear->x, p_y + shear->y, 0);
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vec3_transform(vtx.position, vtx.position, &ident);
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}
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m_vertexBuffer = m_vertexHelper->update();
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if (!m_vertexBuffer) {
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obs_source_skip_video_filter(m_sourceContext);
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return;
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}
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m_isMeshUpdateRequired = false;
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vertex_buffer->update(true);
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is_mesh_update_required = false;
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}
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// Draw previous filters to texture.
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try {
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auto op = source_rt->render(width, height);
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gs_set_cull_mode(GS_NEITHER);
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gs_reset_blend_state();
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gs_blend_function_separate(gs_blend_type::GS_BLEND_ONE, gs_blend_type::GS_BLEND_ZERO,
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gs_blend_type::GS_BLEND_ONE, gs_blend_type::GS_BLEND_ZERO);
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gs_enable_depth_test(false);
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gs_enable_stencil_test(false);
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gs_enable_stencil_write(false);
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gs_enable_color(true, true, true, true);
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gs_ortho(0, (float)width, 0, (float)height, -1, 1);
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vec4 black;
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vec4_zero(&black);
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gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &black, 0, 0);
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/// Render original source
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if (obs_source_process_filter_begin(source_context, GS_RGBA, OBS_NO_DIRECT_RENDERING)) {
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obs_source_process_filter_end(source_context, paramEffect ? paramEffect : default_effect, width, height);
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} else {
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obs_source_skip_video_filter(source_context);
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}
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} catch (...) {
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obs_source_skip_video_filter(source_context);
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return;
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}
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source_rt->get_texture(source_tex);
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if ((!source_texture) || (source_texture->get_width() != width) || (source_texture->get_height() != height)) {
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size_t mip_levels = 1;
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if (util::math::is_power_of_two(width) && util::math::is_power_of_two(height)) {
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size_t w_level = util::math::get_power_of_two_floor(width);
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size_t h_level = util::math::get_power_of_two_floor(height);
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if (h_level < w_level) {
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mip_levels = h_level;
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} else {
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mip_levels = w_level;
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}
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}
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// OBS does not allow creating an uninitalized texture, which means that we actually have to give it mip_data.
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size_t store_size = (width * height * sizeof(uint32_t));
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source_texture_store.resize(store_size * mip_levels);
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const uint8_t* data = (uint8_t*)source_texture_store.data();
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||||
source_texture = std::make_shared<gs::texture>(width, height, GS_RGBA, mip_levels, nullptr,
|
||||
gs::texture::flags::BuildMipMaps);
|
||||
}
|
||||
|
||||
mipmapper.rebuild(source_tex, source_texture, gs::mipmapper::generator::Linear, 0.5);
|
||||
|
||||
// Draw shape to texture
|
||||
gs_texrender_reset(m_shapeRender);
|
||||
if (gs_texrender_begin(m_shapeRender, baseW, baseH)) {
|
||||
if (m_isCameraOrthographic) {
|
||||
try {
|
||||
auto op = shape_rt->render(width, height);
|
||||
|
||||
if (is_orthographic) {
|
||||
gs_ortho(-1.0, 1.0, -1.0, 1.0, -farZ, farZ);
|
||||
} else {
|
||||
gs_perspective(m_cameraFieldOfView, float_t(baseW) / float_t(baseH), nearZ, farZ);
|
||||
gs_perspective(field_of_view, float_t(width) / float_t(height), nearZ, farZ);
|
||||
// Fix camera pointing at -Z instead of +Z.
|
||||
gs_matrix_scale3f(1.0, 1.0, -1.0);
|
||||
// Move backwards so we can actually see stuff.
|
||||
|
|
@ -500,25 +520,24 @@ void Filter::Transform::Instance::video_render(gs_effect_t* paramEffect)
|
|||
gs_enable_stencil_test(false);
|
||||
gs_enable_stencil_write(false);
|
||||
gs_enable_color(true, true, true, true);
|
||||
while (gs_effect_loop(alphaEffect, "Draw")) {
|
||||
gs_effect_set_texture(gs_effect_get_param_by_name(alphaEffect, "image"), filterTexture);
|
||||
gs_load_vertexbuffer(m_vertexBuffer);
|
||||
gs_load_indexbuffer(NULL);
|
||||
gs_load_vertexbuffer(vertex_buffer->update(false));
|
||||
gs_load_indexbuffer(nullptr);
|
||||
while (gs_effect_loop(default_effect, "Draw")) {
|
||||
gs_effect_set_texture(gs_effect_get_param_by_name(default_effect, "image"), source_texture->get_object());
|
||||
gs_draw(GS_TRISTRIP, 0, 4);
|
||||
}
|
||||
|
||||
gs_texrender_end(m_shapeRender);
|
||||
} else {
|
||||
obs_source_skip_video_filter(m_sourceContext);
|
||||
gs_load_vertexbuffer(nullptr);
|
||||
} catch (...) {
|
||||
obs_source_skip_video_filter(source_context);
|
||||
return;
|
||||
}
|
||||
gs_texture* shapeTexture = gs_texrender_get_texture(m_shapeRender);
|
||||
shape_rt->get_texture(shape_tex);
|
||||
|
||||
// Draw final shape
|
||||
gs_reset_blend_state();
|
||||
gs_enable_depth_test(false);
|
||||
while (gs_effect_loop(alphaEffect, "Draw")) {
|
||||
gs_effect_set_texture(gs_effect_get_param_by_name(alphaEffect, "image"), shapeTexture);
|
||||
gs_draw_sprite(shapeTexture, 0, 0, 0);
|
||||
while (gs_effect_loop(default_effect, "Draw")) {
|
||||
gs_effect_set_texture(gs_effect_get_param_by_name(default_effect, "image"), shape_tex->get_object());
|
||||
gs_draw_sprite(shape_tex->get_object(), 0, 0, 0);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -19,6 +19,10 @@
|
|||
|
||||
#pragma once
|
||||
#include <memory>
|
||||
#include <vector>
|
||||
#include "gs-mipmapper.h"
|
||||
#include "gs-rendertarget.h"
|
||||
#include "gs-texture.h"
|
||||
#include "gs-vertexbuffer.h"
|
||||
#include "plugin.h"
|
||||
|
||||
|
|
@ -63,26 +67,31 @@ namespace Filter {
|
|||
void video_render(gs_effect_t*);
|
||||
|
||||
private:
|
||||
obs_source_t* m_sourceContext;
|
||||
gs::vertex_buffer* m_vertexHelper;
|
||||
gs_vertbuffer_t* m_vertexBuffer;
|
||||
gs_texrender_t * m_texRender, *m_shapeRender;
|
||||
obs_source_t* source_context;
|
||||
|
||||
std::shared_ptr<gs::vertex_buffer> vertex_buffer;
|
||||
std::shared_ptr<gs::rendertarget> source_rt;
|
||||
std::shared_ptr<gs::rendertarget> shape_rt;
|
||||
std::shared_ptr<gs::texture> source_texture;
|
||||
std::vector<char> source_texture_store;
|
||||
gs::mipmapper mipmapper;
|
||||
|
||||
// Camera
|
||||
bool m_isCameraOrthographic;
|
||||
float_t m_cameraFieldOfView;
|
||||
bool is_orthographic;
|
||||
float_t field_of_view;
|
||||
|
||||
// Source
|
||||
bool m_isInactive, m_isHidden;
|
||||
bool m_isMeshUpdateRequired;
|
||||
bool is_inactive;
|
||||
bool is_hidden;
|
||||
bool is_mesh_update_required;
|
||||
|
||||
// 3D Information
|
||||
uint32_t m_rotationOrder;
|
||||
uint32_t m_rotation_order;
|
||||
struct {
|
||||
std::unique_ptr<util::vec3a> m_position;
|
||||
std::unique_ptr<util::vec3a> m_rotation;
|
||||
std::unique_ptr<util::vec3a> m_scale;
|
||||
std::unique_ptr<util::vec3a> m_shear;
|
||||
std::unique_ptr<util::vec3a> position;
|
||||
std::unique_ptr<util::vec3a> rotation;
|
||||
std::unique_ptr<util::vec3a> scale;
|
||||
std::unique_ptr<util::vec3a> shear;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in a new issue