1 files changed, 221 insertions, 44 deletions

diff --git a/drivers/gles3/rasterizer_canvas_gles3.cpp b/drivers/gles3/rasterizer_canvas_gles3.cpp
index c71bf22965..268d6b44c6 100644
--- a/drivers/gles3/rasterizer_canvas_gles3.cpp
+++ b/drivers/gles3/rasterizer_canvas_gles3.cpp
@@ -28,10 +28,10 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 #include "rasterizer_canvas_gles3.h"
-#include "servers/visual/visual_server_raster.h"
-
 #include "global_config.h"
 #include "os/os.h"
+#include "rasterizer_scene_gles3.h"
+#include "servers/visual/visual_server_raster.h"
 #ifndef GLES_OVER_GL
 #define glClearDepth glClearDepthf
 #endif
@@ -172,6 +172,11 @@ void RasterizerCanvasGLES3::canvas_begin() {
 	state.canvas_shader.set_uniform(CanvasShaderGLES3::FINAL_MODULATE, Color(1, 1, 1, 1));
 	state.canvas_shader.set_uniform(CanvasShaderGLES3::MODELVIEW_MATRIX, Transform2D());
 	state.canvas_shader.set_uniform(CanvasShaderGLES3::EXTRA_MATRIX, Transform2D());
+	if (storage->frame.current_rt) {
+		state.canvas_shader.set_uniform(CanvasShaderGLES3::SCREEN_PIXEL_SIZE, Vector2(1.0 / storage->frame.current_rt->width, 1.0 / storage->frame.current_rt->height));
+	} else {
+		state.canvas_shader.set_uniform(CanvasShaderGLES3::SCREEN_PIXEL_SIZE, Vector2(1.0, 1.0));
+	}
 
 	//state.canvas_shader.set_uniform(CanvasShaderGLES3::PROJECTION_MATRIX,state.vp);
 	//state.canvas_shader.set_uniform(CanvasShaderGLES3::MODELVIEW_MATRIX,Transform());
@@ -282,7 +287,11 @@ void RasterizerCanvasGLES3::_set_texture_rect_mode(bool p_enable, bool p_ninepat
 	state.canvas_shader.set_uniform(CanvasShaderGLES3::FINAL_MODULATE, state.canvas_item_modulate);
 	state.canvas_shader.set_uniform(CanvasShaderGLES3::MODELVIEW_MATRIX, state.final_transform);
 	state.canvas_shader.set_uniform(CanvasShaderGLES3::EXTRA_MATRIX, state.extra_matrix);
-
+	if (storage->frame.current_rt) {
+		state.canvas_shader.set_uniform(CanvasShaderGLES3::SCREEN_PIXEL_SIZE, Vector2(1.0 / storage->frame.current_rt->width, 1.0 / storage->frame.current_rt->height));
+	} else {
+		state.canvas_shader.set_uniform(CanvasShaderGLES3::SCREEN_PIXEL_SIZE, Vector2(1.0, 1.0));
+	}
 	state.using_texture_rect = p_enable;
 	state.using_ninepatch = p_ninepatch;
 }
@@ -339,6 +348,53 @@ void RasterizerCanvasGLES3::_draw_polygon(const int *p_indices, int p_index_coun
 	glBindVertexArray(0);
 }
 
+void RasterizerCanvasGLES3::_draw_generic(GLuint p_primitive, int p_vertex_count, const Vector2 *p_vertices, const Vector2 *p_uvs, const Color *p_colors, bool p_singlecolor) {
+
+	glBindVertexArray(data.polygon_buffer_pointer_array);
+	glBindBuffer(GL_ARRAY_BUFFER, data.polygon_buffer);
+
+	uint32_t buffer_ofs = 0;
+
+	//vertex
+	glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Vector2) * p_vertex_count, p_vertices);
+	glEnableVertexAttribArray(VS::ARRAY_VERTEX);
+	glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, false, sizeof(Vector2), ((uint8_t *)0) + buffer_ofs);
+	buffer_ofs += sizeof(Vector2) * p_vertex_count;
+	//color
+
+	if (p_singlecolor) {
+		glDisableVertexAttribArray(VS::ARRAY_COLOR);
+		Color m = *p_colors;
+		glVertexAttrib4f(VS::ARRAY_COLOR, m.r, m.g, m.b, m.a);
+	} else if (!p_colors) {
+		glDisableVertexAttribArray(VS::ARRAY_COLOR);
+		glVertexAttrib4f(VS::ARRAY_COLOR, 1, 1, 1, 1);
+	} else {
+
+		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Color) * p_vertex_count, p_colors);
+		glEnableVertexAttribArray(VS::ARRAY_COLOR);
+		glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, false, sizeof(Color), ((uint8_t *)0) + buffer_ofs);
+		buffer_ofs += sizeof(Color) * p_vertex_count;
+	}
+
+	if (p_uvs) {
+
+		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Vector2) * p_vertex_count, p_uvs);
+		glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
+		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, false, sizeof(Vector2), ((uint8_t *)0) + buffer_ofs);
+		buffer_ofs += sizeof(Vector2) * p_vertex_count;
+
+	} else {
+		glDisableVertexAttribArray(VS::ARRAY_TEX_UV);
+	}
+
+	glDrawArrays(p_primitive, 0, p_vertex_count);
+
+	storage->frame.canvas_draw_commands++;
+
+	glBindVertexArray(0);
+}
+
 void RasterizerCanvasGLES3::_draw_gui_primitive(int p_points, const Vector2 *p_vertices, const Color *p_colors, const Vector2 *p_uvs) {
 
 	static const GLenum prim[5] = { GL_POINTS, GL_POINTS, GL_LINES, GL_TRIANGLES, GL_TRIANGLE_FAN };
@@ -416,22 +472,83 @@ void RasterizerCanvasGLES3::_canvas_item_render_commands(Item *p_item, Item *cur
 
 				glVertexAttrib4f(VS::ARRAY_COLOR, line->color.r, line->color.g, line->color.b, line->color.a);
 
-				Vector2 verts[2] = {
-					Vector2(line->from.x, line->from.y),
-					Vector2(line->to.x, line->to.y)
-				};
+				if (line->width <= 1) {
+					Vector2 verts[2] = {
+						Vector2(line->from.x, line->from.y),
+						Vector2(line->to.x, line->to.y)
+					};
 
 #ifdef GLES_OVER_GL
-				if (line->antialiased)
-					glEnable(GL_LINE_SMOOTH);
+					if (line->antialiased)
+						glEnable(GL_LINE_SMOOTH);
 #endif
-				//glLineWidth(line->width);
-				_draw_gui_primitive(2, verts, NULL, NULL);
+					//glLineWidth(line->width);
+					_draw_gui_primitive(2, verts, NULL, NULL);
+
+#ifdef GLES_OVER_GL
+					if (line->antialiased)
+						glDisable(GL_LINE_SMOOTH);
+#endif
+				} else {
+					//thicker line
+
+					Vector2 t = (line->from - line->to).normalized().tangent() * line->width * 0.5;
+
+					Vector2 verts[4] = {
+						line->from - t,
+						line->from + t,
+						line->to + t,
+						line->to - t,
+					};
+
+					//glLineWidth(line->width);
+					_draw_gui_primitive(4, verts, NULL, NULL);
+#ifdef GLES_OVER_GL
+					if (line->antialiased) {
+						glEnable(GL_LINE_SMOOTH);
+						for (int i = 0; i < 4; i++) {
+							Vector2 vertsl[2] = {
+								verts[i],
+								verts[(i + 1) % 4],
+							};
+							_draw_gui_primitive(2, vertsl, NULL, NULL);
+						}
+						glDisable(GL_LINE_SMOOTH);
+					}
+#endif
+				}
+
+			} break;
+			case Item::Command::TYPE_POLYLINE: {
 
+				Item::CommandPolyLine *pline = static_cast<Item::CommandPolyLine *>(c);
+				_set_texture_rect_mode(false);
+
+				_bind_canvas_texture(RID(), RID());
+
+				if (pline->triangles.size()) {
+
+					_draw_generic(GL_TRIANGLE_STRIP, pline->triangles.size(), pline->triangles.ptr(), NULL, pline->triangle_colors.ptr(), pline->triangle_colors.size() == 1);
 #ifdef GLES_OVER_GL
-				if (line->antialiased)
+					glEnable(GL_LINE_SMOOTH);
+					if (pline->lines.size()) {
+						_draw_generic(GL_LINE_LOOP, pline->lines.size(), pline->lines.ptr(), NULL, pline->line_colors.ptr(), pline->line_colors.size() == 1);
+					}
 					glDisable(GL_LINE_SMOOTH);
 #endif
+				} else {
+
+#ifdef GLES_OVER_GL
+					if (pline->antialiased)
+						glEnable(GL_LINE_SMOOTH);
+#endif
+					_draw_generic(GL_LINE_STRIP, pline->lines.size(), pline->lines.ptr(), NULL, pline->line_colors.ptr(), pline->line_colors.size() == 1);
+
+#ifdef GLES_OVER_GL
+					if (pline->antialiased)
+						glDisable(GL_LINE_SMOOTH);
+#endif
+				}
 
 			} break;
 			case Item::Command::TYPE_RECT: {
@@ -822,6 +939,78 @@ void RasterizerGLES2::_canvas_item_setup_shader_params(ShaderMaterial *material,
 
 #endif
 
+void RasterizerCanvasGLES3::_copy_texscreen(const Rect2 &p_rect) {
+
+	state.canvas_texscreen_used = true;
+	//blur diffuse into effect mipmaps using separatable convolution
+	//storage->shaders.copy.set_conditional(CopyShaderGLES3::GAUSSIAN_HORIZONTAL,true);
+
+	Vector2 wh(storage->frame.current_rt->width, storage->frame.current_rt->height);
+
+	Color blur_section(p_rect.position.x / wh.x, p_rect.position.y / wh.y, p_rect.size.x / wh.x, p_rect.size.y / wh.y);
+
+	if (p_rect != Rect2()) {
+
+		scene_render->state.effect_blur_shader.set_conditional(EffectBlurShaderGLES3::USE_BLUR_SECTION, true);
+		storage->shaders.copy.set_conditional(CopyShaderGLES3::USE_COPY_SECTION, true);
+	}
+
+	glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->effects.mip_maps[0].sizes[0].fbo);
+	glActiveTexture(GL_TEXTURE0);
+	glBindTexture(GL_TEXTURE_2D, storage->frame.current_rt->color);
+
+	storage->shaders.copy.bind();
+	storage->shaders.copy.set_uniform(CopyShaderGLES3::COPY_SECTION, blur_section);
+
+	scene_render->_copy_screen();
+
+	for (int i = 0; i < storage->frame.current_rt->effects.mip_maps[1].sizes.size(); i++) {
+
+		int vp_w = storage->frame.current_rt->effects.mip_maps[1].sizes[i].width;
+		int vp_h = storage->frame.current_rt->effects.mip_maps[1].sizes[i].height;
+		glViewport(0, 0, vp_w, vp_h);
+		//horizontal pass
+		scene_render->state.effect_blur_shader.set_conditional(EffectBlurShaderGLES3::GAUSSIAN_HORIZONTAL, true);
+		scene_render->state.effect_blur_shader.bind();
+		scene_render->state.effect_blur_shader.set_uniform(EffectBlurShaderGLES3::PIXEL_SIZE, Vector2(1.0 / vp_w, 1.0 / vp_h));
+		scene_render->state.effect_blur_shader.set_uniform(EffectBlurShaderGLES3::LOD, float(i));
+		scene_render->state.effect_blur_shader.set_uniform(EffectBlurShaderGLES3::BLUR_SECTION, blur_section);
+		glActiveTexture(GL_TEXTURE0);
+		glBindTexture(GL_TEXTURE_2D, storage->frame.current_rt->effects.mip_maps[0].color); //previous level, since mipmaps[0] starts one level bigger
+		glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->effects.mip_maps[1].sizes[i].fbo);
+
+		scene_render->_copy_screen();
+
+		scene_render->state.effect_blur_shader.set_conditional(EffectBlurShaderGLES3::GAUSSIAN_HORIZONTAL, false);
+
+		//vertical pass
+		scene_render->state.effect_blur_shader.set_conditional(EffectBlurShaderGLES3::GAUSSIAN_VERTICAL, true);
+		scene_render->state.effect_blur_shader.bind();
+		scene_render->state.effect_blur_shader.set_uniform(EffectBlurShaderGLES3::PIXEL_SIZE, Vector2(1.0 / vp_w, 1.0 / vp_h));
+		scene_render->state.effect_blur_shader.set_uniform(EffectBlurShaderGLES3::LOD, float(i));
+		scene_render->state.effect_blur_shader.set_uniform(EffectBlurShaderGLES3::BLUR_SECTION, blur_section);
+		glActiveTexture(GL_TEXTURE0);
+		glBindTexture(GL_TEXTURE_2D, storage->frame.current_rt->effects.mip_maps[1].color);
+		glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->effects.mip_maps[0].sizes[i + 1].fbo); //next level, since mipmaps[0] starts one level bigger
+
+		scene_render->_copy_screen();
+
+		scene_render->state.effect_blur_shader.set_conditional(EffectBlurShaderGLES3::GAUSSIAN_VERTICAL, false);
+	}
+
+	scene_render->state.effect_blur_shader.set_conditional(EffectBlurShaderGLES3::USE_BLUR_SECTION, false);
+	storage->shaders.copy.set_conditional(CopyShaderGLES3::USE_COPY_SECTION, false);
+
+	glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->fbo); //back to front
+	glViewport(0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height);
+	state.canvas_shader.bind(); //back to canvas
+
+	if (state.using_texture_rect) {
+		state.using_texture_rect = false;
+		_set_texture_rect_mode(state.using_texture_rect, state.using_ninepatch);
+	}
+}
+
 void RasterizerCanvasGLES3::canvas_render_items(Item *p_item_list, int p_z, const Color &p_modulate, Light *p_light) {
 
 	Item *current_clip = NULL;
@@ -875,44 +1064,17 @@ void RasterizerCanvasGLES3::canvas_render_items(Item *p_item_list, int p_z, cons
 				glDisable(GL_SCISSOR_TEST);
 			}
 		}
-#if 0
-		if (ci->copy_back_buffer && framebuffer.active && framebuffer.scale==1) {
 
-			Rect2 rect;
-			int x,y;
+		if (ci->copy_back_buffer) {
 
 			if (ci->copy_back_buffer->full) {
 
-				x = viewport.x;
-				y = window_size.height-(viewport.height+viewport.y);
-			} else {
-				x = viewport.x+ci->copy_back_buffer->screen_rect.pos.x;
-				y = window_size.height-(viewport.y+ci->copy_back_buffer->screen_rect.pos.y+ci->copy_back_buffer->screen_rect.size.y);
-			}
-			glActiveTexture(GL_TEXTURE0+max_texture_units-1);
-			glBindTexture(GL_TEXTURE_2D,framebuffer.sample_color);
-
-#ifdef GLEW_ENABLED
-			if (current_rt) {
-				glReadBuffer(GL_COLOR_ATTACHMENT0);
+				_copy_texscreen(Rect2());
 			} else {
-				glReadBuffer(GL_BACK);
+				_copy_texscreen(ci->copy_back_buffer->rect);
 			}
-#endif
-			if (current_rt) {
-				glCopyTexSubImage2D(GL_TEXTURE_2D,0,viewport.x,viewport.y,viewport.x,viewport.y,viewport.width,viewport.height);
-				//window_size.height-(viewport.height+viewport.y)
-			} else {
-				glCopyTexSubImage2D(GL_TEXTURE_2D,0,x,y,x,y,viewport.width,viewport.height);
-			}
-
-			canvas_texscreen_used=true;
-			glActiveTexture(GL_TEXTURE0);
-
 		}
 
-#endif
-
 		//begin rect
 		Item *material_owner = ci->material_owner ? ci->material_owner : ci;
 
@@ -934,6 +1096,11 @@ void RasterizerCanvasGLES3::canvas_render_items(Item *p_item_list, int p_z, cons
 
 			if (shader_ptr && shader_ptr != shader_cache) {
 
+				if (shader_ptr->canvas_item.uses_screen_texture && !state.canvas_texscreen_used) {
+					//copy if not copied before
+					_copy_texscreen(Rect2());
+				}
+
 				state.canvas_shader.set_custom_shader(shader_ptr->custom_code_id);
 				state.canvas_shader.bind();
 
@@ -1046,7 +1213,11 @@ void RasterizerCanvasGLES3::canvas_render_items(Item *p_item_list, int p_z, cons
 		state.canvas_shader.set_uniform(CanvasShaderGLES3::FINAL_MODULATE, state.canvas_item_modulate);
 		state.canvas_shader.set_uniform(CanvasShaderGLES3::MODELVIEW_MATRIX, state.final_transform);
 		state.canvas_shader.set_uniform(CanvasShaderGLES3::EXTRA_MATRIX, state.extra_matrix);
-
+		if (storage->frame.current_rt) {
+			state.canvas_shader.set_uniform(CanvasShaderGLES3::SCREEN_PIXEL_SIZE, Vector2(1.0 / storage->frame.current_rt->width, 1.0 / storage->frame.current_rt->height));
+		} else {
+			state.canvas_shader.set_uniform(CanvasShaderGLES3::SCREEN_PIXEL_SIZE, Vector2(1.0, 1.0));
+		}
 		if (unshaded || (state.canvas_item_modulate.a > 0.001 && (!shader_cache || shader_cache->canvas_item.light_mode != RasterizerStorageGLES3::Shader::CanvasItem::LIGHT_MODE_LIGHT_ONLY) && !ci->light_masked))
 			_canvas_item_render_commands(ci, current_clip, reclip);
 
@@ -1376,6 +1547,12 @@ void RasterizerCanvasGLES3::reset_canvas() {
 	glBindBuffer(GL_ARRAY_BUFFER, 0);
 	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
 
+	//use for reading from screen
+	if (storage->frame.current_rt) {
+		glActiveTexture(GL_TEXTURE0 + storage->config.max_texture_image_units - 3);
+		glBindTexture(GL_TEXTURE_2D, storage->frame.current_rt->effects.mip_maps[0].color);
+	}
+
 	glActiveTexture(GL_TEXTURE0);
 	glBindTexture(GL_TEXTURE_2D, storage->resources.white_tex);
 
@@ -1543,7 +1720,7 @@ void RasterizerCanvasGLES3::initialize() {
 	glBindBuffer(GL_UNIFORM_BUFFER, 0);
 
 	state.canvas_shader.init();
-	state.canvas_shader.set_base_material_tex_index(1);
+	state.canvas_shader.set_base_material_tex_index(2);
 	state.canvas_shadow_shader.init();
 
 	state.canvas_shader.set_conditional(CanvasShaderGLES3::USE_RGBA_SHADOWS, storage->config.use_rgba_2d_shadows);