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filter-blur: Split off blur rendering into method

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This commit is contained in:
Michael Fabian Dirks 2017-07-06 05:57:57 +02:00
parent 191b1ea23f
commit 9c97d90cc2
2 changed files with 95 additions and 51 deletions
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142
source/filter-blur.cpp
View file

@ -215,6 +215,8 @@ Filter::Blur::Instance::Instance(obs_data_t *data, obs_source_t *context) : m_so
m_effect = g_boxBlurEffect;
m_primaryRT = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
m_secondaryRT = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
m_rtHorizontal = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
m_rtVertical = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
obs_leave_graphics();
update(data);
@ -224,6 +226,8 @@ Filter::Blur::Instance::~Instance() {
obs_enter_graphics();
gs_texrender_destroy(m_primaryRT);
gs_texrender_destroy(m_secondaryRT);
gs_texrender_destroy(m_rtHorizontal);
gs_texrender_destroy(m_rtVertical);
obs_leave_graphics();
}
@ -282,7 +286,7 @@ void Filter::Blur::Instance::video_render(gs_effect_t *effect) {
}
gs_effect_t* defaultEffect = obs_get_base_effect(obs_base_effect::OBS_EFFECT_DEFAULT);
gs_texture_t *sourceTexture = nullptr, *horizontalTexture = nullptr;
gs_texture_t *sourceTexture = nullptr;
#pragma region Source To Texture
gs_texrender_reset(m_primaryRT);
@ -334,12 +338,43 @@ void Filter::Blur::Instance::video_render(gs_effect_t *effect) {
}
#pragma endregion Source To Texture
#pragma region Horizontal Pass
gs_texrender_reset(m_secondaryRT);
if (!gs_texrender_begin(m_secondaryRT, baseW, baseH)) {
PLOG_ERROR("<filter-blur> Failed set up horizontal pass.");
gs_texture_t *blurred = blur_render(sourceTexture, baseW, baseH);
if (blurred == nullptr) {
obs_source_skip_video_filter(m_source);
return;
}
// Draw final effect
{
gs_eparam_t* param = gs_effect_get_param_by_name(defaultEffect, "image");
if (!param) {
PLOG_ERROR("<filter-blur:Final> Failed to set image param.");
failed = true;
} else {
gs_effect_set_texture(param, blurred);
}
while (gs_effect_loop(defaultEffect, "Draw")) {
gs_draw_sprite(blurred, 0, baseW, baseH);
}
}
if (failed) {
obs_source_skip_video_filter(m_source);
return;
}
}
gs_texture_t* Filter::Blur::Instance::blur_render(gs_texture_t* input, size_t baseW, size_t baseH) {
bool failed = false;
gs_texture_t *intermediate;
#pragma region Horizontal Pass
gs_texrender_reset(m_rtHorizontal);
if (!gs_texrender_begin(m_rtHorizontal, baseW, baseH)) {
PLOG_ERROR("<filter-blur:Horizontal> Failed to initialize.");
return nullptr;
} else {
gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
@ -362,73 +397,78 @@ void Filter::Blur::Instance::video_render(gs_effect_t *effect) {
gs_enable_color(true, true, true, true);
// Prepare Effect
if (!apply_effect_param(sourceTexture, (float)(1.0 / baseW), 0)) {
PLOG_ERROR("<filter-blur> Failed to apply effect parameters.");
if (!apply_effect_param(input, (float)(1.0 / baseW), 0)) {
PLOG_ERROR("<filter-blur:Horizontal> Failed to set effect parameters.");
failed = true;
} else {
while (gs_effect_loop(m_effect, "Draw")) {
gs_draw_sprite(sourceTexture, 0, baseW, baseH);
gs_draw_sprite(input, 0, baseW, baseH);
}
//// Render
//if (gs_technique_begin(m_technique)) {
// PLOG_ERROR("<filter-blur> Failed to render effect.");
// failed = true;
//} else {
// if (!gs_technique_begin_pass_by_name(m_technique, "Draw")) {
// PLOG_ERROR("<filter-blur> Failed to render horizontal pass.");
// failed = true;
// } else {
// gs_technique_end_pass(m_technique);
// }
// gs_technique_end(m_technique);
//}
}
gs_texrender_end(m_secondaryRT);
gs_texrender_end(m_rtHorizontal);
}
if (failed) {
obs_source_skip_video_filter(m_source);
return;
return nullptr;
}
horizontalTexture = gs_texrender_get_texture(m_secondaryRT);
if (!horizontalTexture) {
PLOG_ERROR("<filter-blur> Failed to get horizontal pass texture.");
obs_source_skip_video_filter(m_source);
return;
intermediate = gs_texrender_get_texture(m_rtHorizontal);
if (!intermediate) {
PLOG_ERROR("<filter-blur:Horizontal> Failed to get intermediate texture.");
return nullptr;
}
#pragma endregion Horizontal Pass
#pragma region Vertical Pass
// Prepare Effect
if (!apply_effect_param(horizontalTexture, 0, (float)(1.0 / baseH))) {
PLOG_ERROR("<filter-blur> Failed to apply effect parameters.");
failed = true;
gs_texrender_reset(m_rtVertical);
if (!gs_texrender_begin(m_rtVertical, baseW, baseH)) {
PLOG_ERROR("<filter-blur:Vertical> Failed to initialize.");
return nullptr;
} else {
while (gs_effect_loop(m_effect, "Draw")) {
gs_draw_sprite(horizontalTexture, 0, baseW, baseH);
gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
// Clear to Black
vec4 black;
vec4_zero(&black);
gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &black, 0, 0);
// Set up camera stuff
gs_set_cull_mode(GS_NEITHER);
gs_reset_blend_state();
gs_blend_function_separate(
gs_blend_type::GS_BLEND_ONE,
gs_blend_type::GS_BLEND_ZERO,
gs_blend_type::GS_BLEND_ONE,
gs_blend_type::GS_BLEND_ZERO);
gs_enable_depth_test(false);
gs_enable_stencil_test(false);
gs_enable_stencil_write(false);
gs_enable_color(true, true, true, true);
// Prepare Effect
if (!apply_effect_param(intermediate, 0, (float)(1.0 / baseH))) {
PLOG_ERROR("<filter-blur:Vertical> Failed to set effect parameters.");
failed = true;
} else {
while (gs_effect_loop(m_effect, "Draw")) {
gs_draw_sprite(intermediate, 0, baseW, baseH);
}
}
// Render
//if (!gs_technique_begin(m_technique)) {
// PLOG_ERROR("<filter-blur> Failed to render effect.");
// failed = true;
//} else {
// if (!gs_technique_begin_pass_by_name(m_technique, "Draw")) {
// PLOG_ERROR("<filter-blur> Failed to render vertical pass.");
// failed = true;
// } else {
// gs_draw_sprite(sourceTexture, 0, baseW, baseH);
// gs_technique_end_pass(m_technique);
// }
// gs_technique_end(m_technique);
//}
gs_texrender_end(m_rtVertical);
}
if (failed) {
obs_source_skip_video_filter(m_source);
return;
return nullptr;
}
intermediate = gs_texrender_get_texture(m_rtVertical);
if (!intermediate) {
PLOG_ERROR("<filter-blur:Vertical> Failed to get intermediate texture.");
return nullptr;
}
#pragma endregion Vertical Pass
return intermediate;
}
bool Filter::Blur::Instance::apply_effect_param(gs_texture_t* texture, float uvTexelX, float uvTexelY) {

4
source/filter-blur.h
View file

@ -27,6 +27,8 @@
#define P_FILTER_BLUR_TYPE_GAUSSIAN "Filter.Blur.Type.Gaussian"
#define P_FILTER_BLUR_TYPE_BILATERAL "Filter.Blur.Type.Bilateral"
#define P_FILTER_BLUR_SIZE "Filter.Blur.Size"
// Bilateral Blur
#define P_FILTER_BLUR_BILATERAL_SMOOTHING "Filter.Blur.Bilateral.Smoothing"
#define P_FILTER_BLUR_BILATERAL_SHARPNESS "Filter.Blur.Bilateral.Sharpness"
@ -77,6 +79,7 @@ namespace Filter {
void hide();
void video_tick(float);
void video_render(gs_effect_t*);
gs_texture_t* blur_render(gs_texture_t* input, size_t baseW, size_t baseH);
bool apply_effect_param(gs_texture_t* texture,
float uvTexelX, float uvTexelY);
@ -86,6 +89,7 @@ namespace Filter {
gs_effect_t *m_effect;
gs_technique_t *m_technique;
gs_texrender_t *m_primaryRT, *m_secondaryRT;
gs_texrender_t *m_rtHorizontal, *m_rtVertical;
// Blur
Type m_type;